Author: developer

Causes of Surface Condensation on Insulated Piping

Jim Young Director of Technology ITW Insulation Systems In addition to reducing heat gain from the ambient environment, one of the main purposes of insulation on pipe and mechanical equipment operating at below ambient temperatures is to prevent condensation on the outer surface of the insulation system. Preventing this surface condensation is simple in concept. […]

Chairman’s Message by Walter Teeter

We’re kicking off a new year and setting new agendas, and even though I’m well into my term as your IIAR Chairman, I’d like to take this opportunity to welcome everyone – new and renewing members alike. We’ve just wrapped up our annual agenda-setting session and meeting of the Board of Directors, and I’m happy […]

President’s Message by Dave Rule

It’s the beginning of the summer and that means it’s time for one of IIAR’s most important activities – leading membership renewals. And while this may seem like a routine activity we all work hard to complete every year, I’d like to take the opportunity in my column this month to point out that, as […]

The Internet of REFRIGERATION

Networked Equipment Aims to Improve Safety, Operations he Internet of Things — an increasingly massive network of electronically connected systems, devices and people that enables cross-platform data sharing — is creating a large, connected ecosystem across many industries, including refrigeration. “There is continuing growth in remote monitoring with all types of refrigeration equipment, driven largely […]

Packaged Components Promise Flexibility, Lower Install Costs

ackage systems are providing turn-key solutions for those within the refrigeration industry, and some manufacturers are turning to packaged components within those systems, which can cut down on the number of parts in use and make maintenance easier. “Years ago, everything was basically custom, but today you’re seeing lots of people packaging equipment and some […]

Cleaner Coils Boost Cooling Capacity

hen a large food distribution facility was faced with major issues resulting from evaporator and condenser coils coated with dust, dirt, and production debris, it turned to EcoClear in Georgia and its deepcleaning system. The facility was looking to improve air flow, increase dehumidification, improve energy savings and reduce maintenance cost through a deep cleaning […]

IIAR Members Honored with Awards from Accelerate America

ccelerate America magazine honored five IIAR member companies for their work in advancing natural refrigerant adoption in North America as part of its second annual awards program. The awards were presented in June during the ATMOsphere America conference in San Diego The magazine, which is produced by shecco America, presented best-insector awards to: Whole Foods […]

IIAR Remembers George Yoksas

eorge Yoksas was a long-time federal safety regulator, but he hated when red tape got in the way of solving issues. “He wanted to find> solutions. He would say, ‘How can we make this work and have a meaningful impact?’ ” said Doug Reindl, a professor in the University of Wisconsin departments of Engineering Professional […]

Sealless Pumps Reap Energy Savings

eal-less magnetic pumps, or mag-drive pumps, have become the preferred option for a variety of conditions in the ammonia refrigeration industry, mainly because they take the heat generated by the pump’s electric motor out of the cooling process. Sealless magnetic-drive pumps (MDP) are equipped with totally enclosed fan-cooled (TEFC) motors, offering versatility for a variety […]

R-22: Five Things to Know

ith production of HCFC refrigerants ending in less than three years, food and beverage manufacturers who currently rely on R-22 are faced with some difficult choices. Although facilities can continue to use recycled, reclaimed or stockpiled R-22 past Jan. 1, 2020, there will come a time when the shift to lower global-warming-potential synthetic refrigerants or […]

ARF to Create Industry Insulation Standards and Quality Control Guidelines

hile insulation is a critical element currently is no industry standard for installation or quality control of the installation, a gap that the Ammonia Refrigeration Foundation plans to address with a new research project. “Cold insulation systems are very finicky about how they are installed. Just like a cold beer on a hot humid day […]

RETA, IIAR Develop CO2 Training Materials

s hydrofluorocarbons and hydrochlorofluorocarbons are being phased out, there is a growing emphasis on natural refrigerants. To help improve safety and educate those within the industry, IIAR and the Refrigerating Engineers and Technicians Association are working to create safety standards and develop educational materials Dave Rule, president of IIAR, said ammonia and carbon dioxide are […]

Trump Administration Advances Regulatory Reform

President Trump made regulatory reform a priority during the campaign and pledged to provide industry relief from overly burdensome regulations.Since President Trump took office, he has initiated a number of actions to advance regulatory reform that will impact the industrial refrigeration industry. INITIAL “FREEZE” ON REGULATIONS On January 20th, White House Chief of Staff Reince […]

PARALLEL OPERATION OF SCREW COMPRESSOR PACKS

B. PIJNENBURG AND J. RITMANN BITZER KÜHLMASCHINENBAU GMBH, JENS JUULS VEJ 16, 8260 VIBY J. AARHUS, DK E-MAIL: BAS.PIJNENBURG@BITZER.DE, JOHN.RITMANN@BITZER.DE ABSTRACT mmonia screw compressor packs utilizing parallel operation of two or three smaller industrial NH3 screw compressors offer the optimum way to fulfill maximum part load efficiency, increased redundancy, and other highly desirable features in […]

President’s Message by Dave Rule

In this issue of the Condenser, we’re looking at the exit strategies that end users and manufacturers alike are using – to move away from hydrofluorocarbons and hydrochlorofluorocarbons. As former IIAR chairman Bob Port mentions in our cover story “There is a lot of internal pressure to get out of [HFC’s and HCFC’s] from a […]

Making the Investment

How End Users Are Spending on New Technologies s they move away from refrigerants with high global warming potential, commercial and industrial refrigeration users said they’re investing in new, natural refrigerant technology, including packaged ammonia systems and CO2 transcritical systems. The move to newer technologies is allowing them to ease some regulatory burdens, increase efficiency […]

Did Amazon Just Invest in Natural Refrigerants?

n August, Amazon completed its $13.7 billion purchase of Whole Foods Market Inc., and the e-commerce giant now owns the upscale grocer Whole Foods, which is based in Austin, Texas, and has more than 460 stores in the United States, Canada and the United Kingdom. Amazon currently operates fewer than 100 distribution centers in the […]

Comparing Ammonia to 1234yf

lthough ammonia has been the refrigerant of choice in industrial refrigeration systems for more than a century, it has faced competition from numerous synthetic refrigerants, most recently 1234yf and R32. Although the use of ammonia brings with it a greater regulatory burden, it remains the more logical choice of refrigerant in larger refrigeration systems, especially […]

Back to Basics: To Reduce the Energy Burden, Reduce the Load

New technologies have led to improvements in energy efficiency, but it will take a new and smarter approach to industrial refrigeration system design to harness the full potential of energy savings – systems that are environmentally sound and costeffective. “The rules of thumb that engineers still go by, because that’s how they were trained, may […]

Situational Awareness Does Matter

I have often thought about situational awareness, but only on a cursory level. In my experience in dealing with emergencies, and seeing how people act in some situations most people seem oblivious to what is happening or can happen. Here is a recent experience I had that jarred me again into thinking about situational awareness. […]

Attention: End Users and Contractors working in Illinois

n May of 2015, IIAR was notified that inspectors with the Illinois State Fire Marshal were requesting that ammonia vessels as part of refrigeration systems be internally inspected. Representatives from the IIAR met with the Division Chief and several members of the Illinois Board of Boiler Rules in June of 2015 and presented the case […]

Wealth Planning: Where to Begin on Education Funding

The IIAR and ARF reserve investment funds are currently managed by Stifel Financial Services under the investment policy established by their respective board of directors. In this and subsequent issues of the Condenser, you’ll find a “financial tech tips” article from the firm on this page. Members of IIAR may use the financial services of […]

To Stay Competitive, “Do the Math and Trust the Science”

educed-charge central ammonia refrigeration systems do not have to mean lower efficiency. With current technology, industrial refrigeration systems can be designed with a smaller ammonia charge and still operate at high efficiency. The key is trusting the math when designing a system. “My analogy is that you don’t use the same computer that you did […]

Closing the Flammability Gap

The safety of synthetic refrigerants versus anhydrous ammonia continues to provide a major point of debate within the refrigeration industry. Since ratification of the Montreal Protocol two decades ago, there has been a trend toward eliminating non-flammable synthetic refrigerants that have ozone depleting potential or global warming potential. At the same time, questions concerning the […]

Court Rules Against EPA Regulating HFCs through SNAP Program

On August 8, 2017, the United States Court of Appeals for the District of Columbia Circuit issued a ruling in the case of Mexichem Fluor Inc. vs. the EPA finding that the Environmental Protection Agency (EPA) exceeded its statutory authority by promulgating a rule in 2015 that regulated the use of hydrofluorocarbons (HFCs). The 2015 […]

President’s Message by Dave Rule

This issue of the Condenser is all about education and training. As you can see from our cover, IIAR is unveiling a new apprenticeship program which will help our industry safeguard the generations of institutional knowledge we rely on for the development of our future technicians, engineers and managers. Alongside apprenticeship, we’re continuing the focus […]

Chairman’s Message by Walter Teeter

We’re only three months away from the 2018 IIAR conference, and your staff at headquarters is working hard to wrap up annual conference programming for an event that promises to be one of the most exciting IIAR meetings yet. We’re back at the always popular Broadmoor Hotel in Colorado Springs, CO next March (18 – […]

IIAR Launches Apprenticeship Program

BY MINDY LONG pprenticeship programs help businesses develop highlyskilled employees, reduce turnover, increase productivity and cut the cost of recruitment. They can also help employers attract new employees. To realize these benefits, the International Institute of Ammonia Refrigeration, in partnership with other organizations, has created an apprenticeship program for refrigeration mechanics/ technicians that can help […]

Cold Chain Plays a Crucial Role in Emergency Preparedness

isaster takes many forms – just this year, various sections of the U.S. have experienced catastrophic hurricanes, wildfires and flooding, all of which can knock out – sometimes for a long time – utilities that are essential to maintaining business. Earthquakes, tornados and blizzards are other major threats. For food manufacturers, wholesalers and supermarkets and […]

The Future of Natural Refrigeration Begins Here

he future of industrial refrigeration begins at the 2018 Natural Refrigeration Conference & Expo. This annual event will take place March 18-21 at the Broadmoor Hotel in Colorado Springs, CO. Showcasing the latest equipment, products, services and technologies available in natural refrigeration, this tradeshow provides attendees the opportunity to meet with over 1900 industry professionals, […]

Ammonia Holds Promise for Supermarkets

atural refrigerants have the potential to provide supermarkets with methods to address environmental and regulatory changes, take advantage of long-term efficiency savings and reduce energy costs. Educating grocers about the benefits of the technology could contribute to increased demand. There are new opportunities within the industry as stores look for alternative ways to power refrigeration. […]

Observations on the Chemical Safety Board report on the Millard Accident

The analysis and recommendations expressed here have been developed by the IIAR Safety Committee working with IIAR staff INTRODUCTION n August of 2010, an accident occurred at the Millard Refrigerated Serviced facility in Theodore, Alabama. Subsequent to the accident, the United States Chemical Safety and Hazard Investigation Board (CSB) investigated the accident and later issued […]

Whole Foods Tests Battery Storage to Reduce Energy Demands

n average, grocery stores use about three times more energy per square foot than average retail spaces, with much of the use going to refrigeration. To help cut energy costs, future-proof against volatile energy markets and increase resiliency, Whole Foods Market is testing a Refrigeration Battery at a store in Los Altos, California. “Thermal storage […]

You think you know what you’re doing?

I visit a lot of refrigerated facilities and I’ve found many of them well prepared for an ammonia incident. The refrigeration operators are trained and knowledgeable in the operation of their systems. Many companies also have others trained to assist in various duties if there is an emergency of any kind. The majority of these […]

Foundation Readies for IIAR Conference

In its continuing effort to support the military and introduce skilled workers to the ammonia refrigeration industry, the Ammonia Refrigeration Foundation and the International Institute of Ammonia Refrigeration are inviting transitioning military personnel, National Guard and reservists stationed at Fort Carson, Colorado to attend IIAR’s annual conference March 18-21 at the Broadmoor Hotel & Resort […]

Ammonia and Bad Oil Don’t Mix

il and ammonia mix continuously in refrigeration compressors. The primary function of the oil is to lubricate and cool the compressor, but a small amount of oil is always circulating with the refrigerant that leaves the compressor. This oil comes in contact with all components of the refrigeration system, a fact that must be considered […]

The Inheritance Talk

The IIAR and ARF reserve investment funds are currently managed by Stifel Financial Services under the investment policy established by their respective board of directors. In this and subsequent issues of the Condenser, you’ll find a “financial tech tips” article from the firm on this page. Members of IIAR may use the financial services of […]

Proper Training Around Repair Procedures is Essential

 recent fatal accident, as well as reviews of previous problems, emphasized the critical importance of proper training, experience and clear-cut procedures when conducting repairs of ammonia refrigeration systems, leading industry observers said. Often repairs must be done in time-critical situations, and technicians must resist pressures to take short cuts, they said. In October, three men […]

CFATS Program Change Simplifies Top-Screen

ecent adjustments to the Department of Homeland Security’s Chemical Facility Anti-Terrorism Standards (CFATS) program have simplified the process of completing a risk-assessment, known as a Top-Screen, and could result in changes to how an ammonia refrigeration facility is categorized under the program’s tiering system. DHS, in conjunction with IIAR, recently held a webinar that focused […]

Tax Reform Takes Center Stage

Tax reform has emerged as the top priority in Washington, DC as President Trump and Congressional Republicans set the goal for passing legislation before the end of 2017. Republican leaders are feeling pressure to secure a signature legislative victory following the failure to repeal and replace Obamacare. As a result, the House of Representatives and […]

Assessment of Lubricants for Ammonia and Carbon Dioxide Refrigeration Systems

GLENN D. SHORT, PRESIDENT, BVADVANCED DIVISION; TECHNICAL DIRECTOR, BVA INC ABSTRACT Ammonia (R717) and carbon dioxide (R744) have received increased recognition as non-ozone- depleting and low global warming potential refrigerants. In some cases, both of these refrigerants are used in a cascade system. Some properties of refrigerant-lubricant mixtures are very important for the design and […]

Chairman’s Message by Mark Stencel

When anyone asks me how I can best describe my experience in nearly forty years at sea, I merely say, uneventful. Of course there have been winter gales, and storms and fog and the like. But in all my experience, I have never been in any accident…or any sort worth speaking about. I have seen […]

President’s Message by Dave Rule

This issue of the Condenser is all about change. Whether it’s the regulations phasing out HFC’s and the new decisions faced by many in the commercial and industrial world, or the innovations and new technology that are enabling those decisions – one thing is certain, we are moving rapidly into a new era of refrigeration. […]

GREEN Dialing

GROCERS EYE NATURALS AS PHASEOUT CONTINUES growing number of supermarkets are moving to replace hydrofluorocarbons with climate-friendly alternatives, such as propane, ammonia and carbon dioxide, ahead of the planned phase out of R-22 in the United States, but grocers are moving forward cautiously. “Some supermarket chains have been very progressive, choosing natural refrigerants for all […]

IIAR Heavy Equipment Show

he International Institute of Ammonia Refrigeration’s 39th annual conference will provide four days of technical knowledge, networking and industry-sponsored events for those involved in the ammonia and natural refrigeration industry. The conference begins on Sunday, February 26, and concludes Wednesday, March 1, 2017. The Sunday Education Program will focus on the application of “Recognized and […]

Awareness

BY KEM RUSSELL Are you “aware” in all, or at least most of the aspects of your LESSON life? Awareness implies that you have knowledge of something by maintaining a level of alertness in observing or in interpreting what you see, hear, feel, etc. Some people are very aware, but most of us limit our […]

Ammonia Refrigeration Foundation Celebrates 10th Anniversary

he Ammonia Refrigeration Foundation marked its tenth anniversary on October 24, 2016. This past year gives us much to celebrate with several accomplishments that will keep the Foundation moving in a positive direction. Important achievements include several moves that put the Foundation on sound financial footing and advanced the Foundation’s program in several ways. Of […]

Policy Changes Pave Way for HFC Reductions

The use of hydrofluorocarbons (HFCs) has recently been at the center of policy deliberations in the United States and globally. Many HFCs used in refrigeration have high global warming potential (GWP) and have become the target for reductions by the U.S. Environmental Protection Agency and the over 170 countries that are parties to the Montreal […]

Maintaining the Contractor, End User Relationship

uilding and maintaining a strong relationship between the contractor and the end user of an ammonia refrigeration facility is one of the most valuable things both parties can do for project success. Communication, organization and a detailed understanding of what each side offers are essential ingredients for a smooth and beneficial partnership. Contractors outlined and […]

Six Things ETY to Remember

nstallation of an ammonia detection system is an essential element in preserving the safety of employees and products at any cold storage or processing facility, along with that of residents within close proximity. Ammonia leaks must be spotted quickly and efficiently, which means that sensors must be properly installed and maintained, and possess an adequate […]

IIAR Unveils Educational Certificate Program

IAR said it has officially launched its new educational certificate program that provides industry training as well as an unbiased means to validate what participants have learned. The program started with training on IIAR-2, the latest IIAR standard to be updated, and will expand to cover additional IIAR standards and other engineering courses. The certificate […]

Kigali Agreement Sets International HFC Phase-Out Schedule

More than 170 nations meeting October in Kigali, Rwanda, adopted a landmark agreement to incorporate a mandatory phase-down schedule for hydrofluorocarbon (HFC) refrigerants. As the world’s leading advocate for the use of ammonia and other natural refrigerants, the International Institute of Ammonia Refrigeration has long promoted the environmental benefits of natural refrigerants, and is positioned […]

Reducing the Regulatory Burden with Low Charge

ith federal regulatory requirements becoming increasingly restrictive in recent years, end users in the ammonia refrigeration industry have been searching for more optimal refrigeration technology that reduces the regulatory burdens, enhances safety and improves overall energy efficiency. In an effort to meet those needs, Evapco, a Maryland based designer of ammonia refrigeration equipment and systems, […]

Chairman’s Message

“Education is simply the soul of a society as it passes from one generation to another” — G. K. Chesterton (1874-1936) IIAR, as an organization, has lost a number of our key members to the passage of time and with those, some of our history and some of the core of our knowledge. With the […]

President’s Message by Dave Rule

In this issue, we’re presenting news on one exciting new activity in our industry and our organization – to build and deliver IIAR’s first education program. IIAR is working harder than ever to deliver on its promise to membership: to broaden the reach of our member base by addressing major issues that are occurring in […]

INTRODUCING: ACADEMY OF NATURAL REFRIGERANTS

IIAR is preparing to launch a new educational certificate program this fall that will provide industry training as well as an unbiased means to validate what participants have learned he IIAR Academy of Natural Refrigerants certificate program will allow design engineers, installers and responsible parties to show that they have received documented and standardized training. […]

Designs, Upgrades Cut Costs for Ammonia Refrigeration Operators

It’s common knowledge that efficiently built facilities allow operators to increase their profits by reducing energy spending. But ammonia refrigeration companies, contractors and end users may be unaware of some less common knowledge . . . that electric utilities offer incentives to companies that design and build or retrofit facilities to improve energy efficiency. Different […]

IIAR Remembers: George Briley

His nickname was “Mr. Refrigeration,” which speaks powerfully about his influence on the ammonia refrigeration industry. George Briley’s colleagues often said that he “developed the bible” for the industry. Within the International Institute of Ammonia Refrigeration, of which he was a co-founder, he was considered a true pioneer. Briley died on June 17 at 90, […]

IIAR Remembers: Joe Buck

rmed with a Master’s degree in plasma physics, Joe Buck understood industrial refrigeration like few other people. As an engineer and a college professor, Buck was an inspiration to his colleagues and to hundreds of students who went on to careers in the refrigeration industry. A long-time leader in the refrigeration industry, William Joseph (Joe) […]

Industry Groups to Launch OSHA Training on Ammonia Refrigeration

eginning in early 2017 the Global Cold Chain Alliance, the IIAR and the Industrial Refrigeration Consortium will collaborate to present a training course for Occupational Safety and Health Act compliance officers focused on ammonia refrigeration systems. This course follows a very successful pilot class that was delivered in the fall of 2014, IIAR President Dave […]

Learning the Most Important Lessons

Have you ever thought back to when you lesson were a kid, and wondered what you wanted to do and be when you grew up? How did that work out? Life certainly has a lot of twists and turns, and for many of us, landing in the industrial refrigeration field specializing in ammonia has been […]

The Ammonia Refrigeration Foundation Celebrates 10-Year Anniversary

he Ammonia Refrigeration Foundation, which celebrates its 10-year anniversary in October, is dedicated to funding research projects and creating educational opportunities, and those efforts will continue to expand under the guidance of executive director Lois Stirewalt O’Connor and the Ammonia Refrigeration Foundation Board of Directors. The Foundation’s newly focused mission is to support research for […]

Reducing Ammonia Charge in a Field-Built System

s part of the push within the ammonia refrigeration industry to minimize ammonia system charges, some companies are turning to packaged systems to achieve lower charge, but it is also possible to reduce charge in field-built systems. “There has been more pressure upon designers to figure out how to reduce the refrigerant charge. For a […]

Ventilating the Machine Room

lthough proper design and installation of ventilation systems for machinery rooms to manage ammonia leaks is of critical importance to the industrial ammonia refrigeration industry, the design and safety standards set forth in the IIAR-2 standard remain a mystery to many designers and facility owners “That is part of the reason IIAR is instituting a […]

OSHA Convenes Small Business Panel on Potential Changes to PSM

In June 2016, the Occupational Safety and Health Administration (OSHA) convened a Small Business Advocacy Review (SBAR) Panel to get feedback from small businesses about potential changes to the Process Safety Management (PSM) regulation. The SBAR panel is a part of the Obama Administration’s overall efforts under Executive Order 13650, “Improving Chemical Facility Safety and […]

IIAR Partners with ASTI on First 30 Minutes

he International Institute of Ammonia Refrigeration is partnering once again with the Ammonia Safety Training Institute, ASTI, in its continuing effort to clearly define how to address the first 30 minutes of a response to an emergency involving ammonia, IIAR said. The working title for the project is “A Practitioner’s Approach to Emergency Operational Engagement.” […]

Daily Inspection i n a r Webinar: Employee Participation & Training

ngaging employees and providing them quality training is critical when it comes to minimizing risks and protecting both on-site and off-site personnel, property and the environment, which is why employee participation and training are required parts of the process safety management and risk management plan programs, said IIAR in the latest member webinar to be […]

Low Recirculation Rate Eva

Jeff Welch, Welch Engineering Corporation Fin coil evaporators with enhanced internal tube surfaces allow for optimum performance with a minimal overfeed rate. Reducing the overfeed rate requires less pumping power and smaller line sizes to the evaporator. Additionally, less compressor power is required for the same refrigeration capacity because the wet suction line pressure drop […]

Chairman’s Message

Now that the IIAR conference has ended and we’re back at work, your IIAR Board of Directors, IIAR Staff and member volunteers are putting forth great effort to carry the momentum of our Orlando Conference forward into the rest of the year We’re building upon our industry’s body of knowledge, influencing code development with our […]

President’s Message by Dave Rule

There’s a lot going on at IIAR headquarters these days. We’re growing and expanding with new initiatives, programs and goals for the new membership year. That growth just reflects the expansion of our industry in general. New technologies like low charge systems, greater adoption of CO2 , and other developments are taking natural refrigerants in […]

From Regulation to Operation. WHAT YOU NEED TO KNOW

wners and operators of ammonia refrigeration equipment have a number of regulatory driven documentation requirements, and the level of understanding regarding those requirements can vary from company to company. The challenge for facility owners and operators begins when they aren’t aware of the regulatory requirements that apply to the ammonia equipment they have and use […]

New Programs, Initiatives Take the Foundation to the Next Level

he Ammonia Refrigeration Foundation, IIAR’s education and research foundation, is launching an effort to expand the outreach of the organization through a new legacy planned giving program. At the same time, leaders said the Foundation would build its visibility and impact this year by celebrating its 10-year anniversary with renewed attention to mission, scholarship, talent […]

EPA Adds New Refrigerants to Phase-Out List

he Environmental Protection Agency has released its latest proposed rule that would make changes to the Significant New Alternatives Policy program, further restricting uses of what it terms higher global warming potential refrigerants, including HFCs. forward revisiting the acceptable alternative lists under the SNAP program. They made some revisions last year, and now they’re proposing […]

IIAR Standards Shaping RAGAGEP

wareness of International Institute of Ammonia Refrigeration’s IIAR-2 standard is increasing among regulatory agencies, and is beginning to shape recognized and generally accepted good engineering practices, industry and government sources said. “There are a number of advantages in having an organization like IIAR come out with standards that are applicable to their own industry,” said […]

IIAR Recognized for Standards Development

ith the completion of IIAR-2 – the first comprehensive standard for the safe design of ammonia refrigeration systems – along with a companion suite of IIAR standards addressing installation, commissioning, operations and decommissioning, IIAR has evolved to become internationally recognized as a standards development organization, or SDO, said Jeffrey Shapiro, P.E., IIAR’s code consultant and […]

Applying Natural Refrigerants to New Applications

s it feasible to apply lowcharge ammonia technology in an application that has traditionally been dominated by the use of HFCs and other synthetic refrigerants? That’s what a big-end user wanted to know when it approached Azane Inc., a package supplier based in California, to manufacture a lowcharge ammonia chiller that provides chilled water to […]

Designing for DX Technology: Four Steps

he movement toward low-charge systems is growing in popularity in the ammonia refrigeration industry for several reasons, and one effective way to significantly reduce ammonia charge is to design and operate evaporators using DX [direct expansion] technology. The reduction in the amount of ammonia charge needed to refrigerate a facility reduces the risks associated with […]

EPA Issues Proposed Rule on RMP

On March 14, 2016, the Environmental Protection Agency (EPA) published in the Federal Register a proposed rule to modernize the Risk Management Program. The rulemaking comes as a part of the Obama Administration’s efforts to implement Executive Order 13650 – Improving Chemical Facility Safety and Security. The Executive Order was issued in response to an […]

Evaluating Safety in CO2 Systems

he use of carbon-dioxide refrigeration systems has been gaining in popularity in recent years as an alternative to ammonia systems, as companies learn about their energy efficiency, safety benefits and resiliency. Although CO2 , like ammonia, is classified as a “natural refrigerant,” there are a number of differences between the two refrigerants, related to the […]

Qualifying Ammonia Refrigeration Contractors

Business owners and operators must take steps to ensure that contractors working on or near ammonia refrigeration systems have the necessary qualifications and work experience to help employers understand their responsibilities related to ammonia refrigeration contractors, and demonstrate their proficiency in working with the system, Tony Lundell, IIAR director of standards and safety said. Lundell […]

IIAR Submits Formal Questions on Eyewash, Safety Showers

he revision of IIAR-2 involved discussions of many philosophical and practical matters. Among the topics discussed was that of the need for eyewash/safety showers in areas other than machinery rooms, and specifically in cold environments such as a freezer or on the roof. Hoping to gain insight on OSHA’s intent, IIAR submitted some formal questions […]

Using Screw Compressors with Economizers to Improve Efficiency

itting screw compressors with economizers and side-loads provides a significant advantage over reciprocating compressors by improving energy efficiency and reducing the number of compressors needed. “Economizers are widely used, as a relatively low-cost way to provide an improvement in overall energy efficiency in many refrigeration plants,” said Joe Pillis, director of engineering, industrial refrigeration, at […]

REDUCING AMMONIA REFRIGERANT CHARGE IN SKATING RINK REFRIGERATION SYSTEMS

CLAUDE DUMAS, CITY OF MONTREAL COSTAS LABOS, CITY OF MONTREAL CONSTANTINE PETROPOULOS, PBA2 VICTOR SANTANGELO, PBA he information contained in the present document is provided by the authors only as indication, without implicit or explicit warranty. It is the user’s responsibility to validate the parameters applicable to the specific usage and make the necessary adjustments. […]

Chairman’s Message

t’s time again for IIAR’s Conference and Exhibition, and that means my term as Chairman is almost over. Although the past year has flown by, we’ve reached many of our biggest objectives, and we expect to continue building on that success in 2016. The primary focus entering the last membership year was the completion and […]

President’s Message by Dave Rule

The 2015 – 2016 membership year has been an exciting time for our industry. As regulations and technologies evolve at a rapid pace, we’re seeing new opportunities and applications for refrigeration grow like never before. And nowhere is this innovation more visible than at IIAR’s Annual Industrial Refrigeration Conference and Exhibition. This issue of the […]

ARF Chairman’s Message

uring a recent high school fundraising dinner in my small town of Azle, Texas, I looked around in amazement at the nearly 200 people who came out to support this event. As we sat and visited with people around the tables, I noted how the variety of business backgrounds, ages and experiences created interesting topics […]

RESIZING REFRIGERANTS

NATURALS EXPAND TO MEET COMMERCIAL DEMAND s hedrofluorocarbons and hydrochlorofluorocarbons are being increasingly phased out to meet government and regulatory requirements, natural refrigerants are candidates to fill the void, getting a closer look from many types of businesses installing smaller refrigeration systems, such as supermarkets and convenience stores. However, natural refrigerants do face challenges. Not […]

Conference Section

Welcome to Orlando and the 2016 IIAR Industrial Refrigeration Conference & Exhibition! Special thanks to every company who provided important financial support for IIAR through their conference participation The annual conference is an exciting time for all sectors of our industry to come together and catch up with friends and business partners at one of […]

IIAR Annual Conference to Provide Technical Knowledge, Industry Insight to Members

he International Institute of Ammonia Refrigeration 2016 annual conference in Orlando, Florida, will provide three days of technical knowledge, networking and industry-sponsored events for those involved in the ammonia refrigeration industry The program begins on Sunday, and this year’s Sunday Educational Program will focus on the IIAR-2 standard. The four-hour session will provide an opportunity […]

IIAR Conference Technical Paper Presentations to Cover Releases, Small Package Systems

uring the annual IIAR Conference technical program, a number of presenters will discuss their findings from peer reviewed technical papers. Topics range from global refrigerant trends to determining the effectiveness of vapor retarders on insulation systems. “A common theme will be smallcharge ammonia systems applied to commercial and light industrial applications,” said Eric Smith, IIAR’s […]

Work Continues on Existing Facilities Standard

AR is moving forward on its recognized and generally accepted good engineering practice (RAGAGEP) standard for existing facilities, which is intended to provide guidance for end users and compare their older designs to the new and updated safety standards. “New and updated standards are applicable for new construction, so the idea is to give them […]

New Association Spotlights Sustainable Refrigerants

he North American Sustainable Refrigeration Council — a newly formed 501(c)(3) nonprofit organization — is working to advance natural refrigerants such as ammonia or carbon dioxide and create a more sustainable future for supermarket refrigeration. “Our focus is supermarkets because we see so much potential there,” said Liz Whiteley, executive director of NASRC, which is […]

Domestic, Global Policies Serve as a Catalyst for Growth of Natural Refrigerants

he regulatory burden on synthetic refrigerants is much stiffer than it ever has been before, which is opening more opportunities for natural refrigerants in the U.S. Lowell Randel, vice president, government and legal affairs for the Global Cold Chain Alliance, said a number of factors are contributing to the growth of natural refrigerants, including the […]

Remembering Bob Appleton

ob Appleton never flaunted his expertise in the ammonia refrigeration industry, but those who worked with him during his five-decade career knew that he was the man to see whenever they had a riddle they could not solve. “He was an encyclopedia of how to get things done,” said Tom Leighty, his long-time business partner […]

Remembering Bob Armstrong

In an industry that relies on complex data, Bob Armstrong packaged technical information with an inventive elegance and a critical eye as the driving force behind the International Institute of Ammonia Refrigeration’s annual conference for many years and the first editor of the Condenser magazine. “I worked closely with Bob for many years as the […]

Is a Vortex to Blame for Your Poorly Functioning Thermosyphon System?

hermosyphon systems have a solid reputation in the industrial refrigeration industry, and are a popular choice for many . . . as long as they work. But when a thermosyphon system has problems, those problems are sometimes not easy to identify or correct. Gary Gneiting, director of engineering at Mericle Mechanical, Inc., said a vortex […]

Managing the First 30 Minutes

he ammonia refrigeration industry has long understood that the most critical time during a potential ammonia emergency is the first 30 minutes. The quickness and effectiveness of first responders can mean the difference between a minor, manageable incident, and a chaotic catastrophe. Once the clock starts ticking, every minute is critical. To successfully control the […]

Are You a Creature of Habit?

The lessons we learn come from many placLESSON es, some from experiences within our work environment and many outside of that environment. Consider this question, “Are you or a co-worker properly prepared to safely perform your assigned responsibilities?” “Have your past training and experiences formed a solid base that will help you complete your activity […]

OSHA Initiates Small Business Review Panel on PSM Regulation

In February 2016, the Occupational Safety and Health Administration (OSHA) announced that it is initiating a Small Business Advocacy Review (SBAR) Panel in order to get feedback on several potential revisions to OSHA’s Process Safety Management Program (PSM) standard. The effort comes as a part of the Obama Administration’s implementation of Executive Order 13650, “Improving […]

Noncondensable Gases in Ammonia Refrigeration Systems

oncondensable gases in industrial refrigeration systems are common, and although it may take years for those gases to accumulate, they must be addressed. If not, the steady accumulation can become problematic and have an adverse effect on systems. Tony Lundell, director of standards and safety at IIAR, hosted a webinar to help owners, designers, in-house […]