The Natural Refrigeration Review is a quarterly publication that contains technical articles, regulatory and code updates, industry news and information about IIAR activities and publications. It is distributed by email to all IIAR Members and IIAR Contact lists.
SUMMER 2026 THE NATURAL REFRIGERATION REVIEW
The Natural Refrigeration Review issues are available as PDF downloads for both lIAR members and non-members, or as individual article posts below. Click the button to view the full issue, or scroll through all the individual issue articles below.
Colmac Coil Manufacturing Announces Leadership Change
Colmac Coil Manufacturing has announced that Joe Fazzari, P.E., has been promoted to the position of President, Colmac Coil Manufacturing, effective January 1st, 2021. Fazzari succeeds immediate former President Bruce Nelson, P.E. who has transitioned to a new role as Director of Innovation of Colmac Coil Manufacturing. Fazzari will have the oversight of all operations and strategic direction of Colmac Coil.
Read MoreCARB Moves Forward on Low-GWP Requirements for California Ice Rinks
At the December meeting of the California Air Resources Board, the board voted to approve the proposed regulation on hydrofluorocarbons that established a 150 GWP limit for new ice rinks and other types of large refrigeration systems in locations such as cold storage warehousing.
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Energy Performance Benchmarking: Considering the Efficiency of an Ammonia Refrigeration Installation
The number of countries ratifying the Kigali Amendment to the Montreal Protocol is steadily growing.
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Emergency Series Part 2: Emergency Shutdown and Response
This article has been updated from a previous version to distinguish the differences between a nuisance leak response and a HAZMAT response. Emergency response or responding to emergencies means a response effort by employees from outside the immediate release area or by other designated responders (i.e., mutual aid groups, local fire departments, etc.) to an occurrence which results, or is likely to result, in an uncontrolled release of a hazardous substance.
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Unknowns
Participating in IIAR conferences, webinars, committees, and sub-committees has certainly increased my knowledge and my access to information. I have listened to and worked with very knowledgeable people from many backgrounds. Even after being involved in the ammonia refrigeration industry, and specifically IIAR for many decades, I am still learning. This reminds me of a famous statement I read in a book by Donald Rumsfeld, who served as George W. Bush’s secretary of defense.
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Choosing Between Traditional and Roth IRA’s
Each year, individuals with earned income may decide to put $6,000 ($7,000 if age 50 or older) into an IRA to save for retirement. The decision to contribute to a traditional IRA versus a Roth IRA has several key considerations, such as eligibility, tax-deductibility, and current versus future tax rate. The below chart outlines some features of each type of IRA to aid in the important decision of which IRA to fund annually.
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Biden Administration Takes Early Action on Regulatory Policy and Climate Change
Joe Biden began his presidency on January 20th by signing a series of Executive Orders impacting a wide range of policy issues. In just the first 10 days of his Administration, Biden took 42 individual executive actions, many of which reversed policies instituted by former President Trump. Regulatory review and climate change are among the major actions that will have an impact on the natural refrigerants industry.
Read MorePressure Relief Design Considerations From a PSM Compliance Standpoint (Part One)
Pressure relief design documentation is often the most misunderstood portion of the Process Safety Information required under 29 CFR 1910.119(d) (3)(i)(D) and 40 CFR Part 68.65(d)(1) (iv). The two regulations state that the relief system design AND design basis shall be included in the process safety information pertaining to the equipment in the process. The word “design” is fairly straightforward. The Cambridge Dictionary defines the word design, when used as a noun, as “a drawing or set of drawings showing how a … product is to be made and how it will work and look” or “the way in which something is planned and made.” Sounds simple, right? We need to have the technical specifications and physical arrangement of the relief design documented. Easily done.
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President’s Message by Gary Schrift
Buckling our seatbelts, filling our own gas tanks, sending an email, and burning propane or natural gas in our homes for heating was once unthinkable. These technologies replaced dad’s arm across your chest during a fast stop, the serviceman pumping gas and checking your oil level, typewriters and the mail service, and coal or wood-burning stoves. There are times I wish to go back. Like when it’s pouring rain and I am nearly out of gas, or when my PC fails, and I feel helpless. Boy wouldn’t that gas station attendant or typewriter be great now.
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Chairman’s Message By Eric Johnston
Conference time is here again and although it’s hard to think we’ll spend one more year meeting online rather than in person, there’s a lot to look forward to. For the executive committee and your staff at headquarters, that means everyone is working hard to make sure our recent initiatives – from the renewed focus on IIAR member benefits to the many new projects our committees have started – will put us in the best possible position as we look forward to the eventual end of this pandemic.
Read MorePressure Relief Design Considerations From a PSM Compliance Standpoint (Part Two)
In the first article of this series, some of the factors that affect the relief capacity of a relief system that are often overlooked were highlighted to raise awareness of what is needed to properly document the safety relief design. In this article, we will discuss some of the pitfalls associated with internally relieving relief valves. It has long been held that the best way to relieve overpressure in an ammonia refrigeration system is to have the safety relief valves (SRVs) relieve into another part of the system, often simply on the opposite side of the downstream isolation valve. While this can be a viable option, it is often fraught with pitfalls.
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EPA Takes Aim at the Future Proposed rulemaking Jumpstarts HFC phasedown
The U.S. Environmental Protection Agency has been given statutory authority to move forward with phasing down hydrofluorocarbons as part of the American Innovation and Manufacturing Act (AIM), which is expected to increase the long-term use of natural refrigerants. The agency has taken rapid action, and on May 3, it released its first proposed rulemaking under the AIM Act to establish an allocation system for the HFC phasedown.
Read MoreIIAR Brings Synchronous Learning Opportunities to Industrial Refrigeration
COVID-19 has changed the way learning takes place across the globe with virtual opportunities and distance learning taking off as social distancing and travel restrictions have kept people out of classrooms. IIAR is among those groups that pivoted to provide valuable learning opportunities to those within the refrigeration industry. In March, IIAR partnered with Don Fenton, a professor of mechanical and nuclear engineering at Kansas State University, to bring the 54th offering of the Industrial Refrigeration Workshop to participants through online synchronous learning, which allowed participants to interact with instructors in real-time.
Read MoreIIAR Annual Conference Continues with Virtual Platform
The International Institute of Ammonia Refrigeration 2021 annual Natural Refrigeration Conference & Expo will continue with its virtual format, providing four days of technical knowledge, networking, and industrysponsored events for those involved in the natural refrigeration industry. The event first went virtual in 2020 due to the COVID-19 pandemic.
Read MoreIndustry Joins Together to Provide Valuable Training to OSHA Inspectors
Occupational Safety and Health Administration compliance officers are continuing to benefit from ammonia refrigeration education presented by the Industrial Refrigeration Consortium. The training, which is funded by IIAR, the Global Cold Chain Alliance, IRC, and OSHA, first launched in the fall of 2014.
Read MoreIIAR’s Annual Conference to Feature a Deep Dive on the Ammonia Piping Handbook
During the 2021 Natural Refrigeration Conference and Expo, IIAR will offer a four-hour training on the IIAR Refrigeration Piping Handbook. “It will examine all the parts of the handbook and provide an overview of the content,” said Eileen McKeown, vice president for marketing and sales for IIAR. The educational session, Ammonia Piping Handbook Education Program: Exploring an Essential Tool for Designers, Contractors, and Operators, will take place on Thursday, June 24 at 11:00 a.m. Eastern time.
Read MoreIIAR Annual Conference Continues with Virtual Platform
The International Institute of Ammonia Refrigeration 2021 annual Natural Refrigeration Conference & Expo will continue with its virtual format, providing four days of technical knowledge, networking, and industry sponsored events for those involved in the natural refrigeration industry. The event first went virtual in 2020 due to the COVID-19 pandemic.
Read MoreTechnical Papers and Workshops at a Glance
Recognized and Generally Accepted Good Engineering Practices (RAGAGEP) are written documents intended for use in the design, installation, operation, and maintenance of process equipment. There has been a move in the ammonia refrigeration industry towards standardization, yet there are historical variants which often cause confusion. This session will examine RAGAGEP variants and discuss the importance of adhering to IIAR standards. We’ll also look at tools for keeping RMP/PSM programs on-track and ensuring that a process adheres to RAGAGEP standards. Uriah Donaldson, Resource Compliance
Read MoreThe Industry at Rest: How SEC Benchmarking will Create New Momentum in the Refrigeration Sector for Mixed-Use Refrigerated Warehousing.
Newton’s first law in part states that an object at rest will remain at rest unless acted upon by an external force. And this is where we are at the moment. Our industry, specifically in the mixed-use refrigerated warehouse sector is at rest. Or differently expressed, at a standstill when it comes to ongoing improvements, new ideas, and implementation of new technology that has the potential to make systems and plants more energy-efficient and creates ongoing savings for our clients.
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Rising Rates: Strategies for Managing Bond Risks
Federal Reserve monetary policies can affect the entire fixed-income market, and the prospect of rising interest rates is a major concern for bond investors. Regardless of the rate environment, however, bonds are a mainstay of investors who want to generate income or dampen the effects of stock market volatility on their portfolios. Now that the Fed is raising rates toward more typical historical levels, you may have questions about how higher rates might affect your fixed-income investments and what you can do to help mitigate the effect on your portfolio.
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