Oct 24, 2019
When it comes to ammonia refrigeration machine rooms, ventilation updates can often be overlooked.
Current and new mechanical codes — International Mechanical Code (IMC) and Uniform Mechanical Code (UMC) — defer to IIAR 2 (and sometimes ASHRAE 15) as the referenced code for ammonia refrigeration systems, including the machine room ventilation.
Just because your ammonia system was designed to code years ago it may not necessarily be code compliant today.
If you have updated your refrigeration system recently, did you update your machine room’s ventilation as well?
Sep 12, 2019
Stellar – Compressor Rebuild & Repair Facility (How It’s Done) from Stellar on Vimeo.
We recently updated our refrigeration parts and compressor shops in Jacksonville, Florida, and Fort Worth, Texas. Stellar also has shops in Modesto, California, and York, Pennsylvania. Each facility offers climate-controlled storage spaces and a compressor shop with a separate teardown room, clean room and paint booth.
From the time a compressor arrives at one of Stellar’s service facilities to the time it leaves, it undergoes an unrivaled 75-point quality inspection — a rigorous examination unlike any in the industry.
Aug 8, 2019
It’s always a good time to check up on your facility’s safety — but now the stakes are even higher when it comes to safety violations.
Employers across the U.S. have been facing higher penalties from the Occupational Safety and Health Administration (OSHA) this year. In January 2019, the federal agency announced it was increasing the maximum penalty for serious and other than serious citations to $13,260 and the maximum for repeat and willful violations to $132,598.
That means conducting a safety audit is especially critical if you’ve already received citations at any company facility, since a repeat offense could trigger a costly willful violation.
Jun 6, 2019
When the Environmental Protection Agency (EPA) announced they were going to phase out hydrofluorocarbon (HFC) refrigerants in 2015, many in the industry began preparing for the coming changes. The new proposed regulations under Section 612 of the Clean Air Act, known as SNAP Rule 20, established a schedule to phase out common HFC refrigerants such as R-22, R-124 and R-507.
However, when major chemical companies challenged the EPA in federal court in 2017, a judge ruled the EPA didn’t have the authority to mandate the changes. Attempts to appeal the court’s decision failed, and the EPA acknowledged they will not enforce the rule.
However, just because the rule was overturned at the federal level doesn’t mean you’re in the clear if you use these refrigerants.
Feb 7, 2019
Condensers are one of the most critical elements of a refrigeration system. While optimizing the performance of your condenser is important for reducing energy usage and maintenance costs, if you’re building a new facility, it all starts with selecting the best option for your needs.
When choosing a condenser, it’s important to consider where the facility is located. In colder climates, ice buildup and water freezing may occur with evaporative condensers. To work around this issue, you have two options:
Sep 6, 2018
What is packaged refrigeration?
Low-charge packaged refrigeration systems are “packaged” or “modular.” The refrigeration equipment is built off site, mounted on a structural steel base (skid), and then delivered to your plant as a self-contained, “plug-and-play” system.
Not only is low-charge packaged refrigeration equipment safer, it also comes with advantages in terms of:
- Field labor savings
- Schedule savings
Aug 30, 2018
Low-charge packaged refrigeration is a safe, innovative solution that uses CO2 or ammonia and a secondary refrigerant, such as glycol. This allows facilities to reap the benefits of ammonia’s excellent thermodynamic properties while minimizing the refrigerant charge and risk because the ammonia is isolated to one area and only the secondary refrigerant is circulated throughout the facility.
The system is “packaged” or “modular,” with refrigeration equipment built off-site, mounted on a structural steel base, and then delivered to a plant as a self-contained, “plug-and-play” system.
One of the major advantages of a packaged refrigeration system is ease of installation. Here are some of the main reasons why:
May 31, 2018
I had the opportunity to attend the 2018 IIAR Natural Refrigeration Conference & Expo in March, and it got me thinking about the value in these industry events. Why do we attend them?
There are countless niche conferences that cover every segment of the food and beverage industry, from packaging to refrigeration and from dairy to meat. These events bring professionals together from across the country and world — but why are they so important?
Packaged refrigeration equipment series
Dec 20, 2016
After months of discussions and hours of negotiations, nearly 200 nations have now reached a deal to limit the use of greenhouse gases worldwide. In October, world leaders agreed to the deal that would gradually phase out the use of hydrofluorocarbons (HFCs) starting in 2019.
Sep 15, 2016
There has been a push to take advantage of the benefits of ammonia while reducing the risks—and it has resulted in an innovative solution: low-charge packaged refrigeration systems that use ammonia and a secondary refrigerant (such as glycol). This allows facilities to reap the benefits of ammonia’s excellent thermodynamic properties while minimizing the charge and risk.