Randy is a licensed mechanical engineer with nearly three decades of experience managing capital projects as well as the design and installation of industrial refrigeration systems and controls. He leverages operational food industry expertise gained at Dean Foods and ConAgra Foods with technical skills to provide Stellar refrigeration clients with the utmost quality.
Credit: Kaeser
Compressed air is a commonly used power source in manufacturing facilities, but it isn’t necessarily a cheap one. Aided by the Compressed Air Challenge movement, which started 20 years ago, users have started treating compressed air as a utility with supply and demand.
This has led to a greater understanding of how to use compressed air efficiently, but many facilities are still running on systems that are not optimized.
Stellar is gearing up for ATMOsphere America 2017, the leading forum for discussion about the business case for natural refrigerants in North America. The three-day conference next month will host more than 400 industry stakeholders in San Diego, California, and will feature discussions about the latest in refrigeration technology and regulation. Among the hot-button issues in the industry: the diminishing role of hydrochlorofluorocarbons (HCFCS).
Whether your food plant packages frozen orange juice or processes chicken breasts, a blast cell freezer can be used to freeze almost any product. It’s important to understand the common misconceptions, the importance of proper design and how to operate your blast cell.
Many food plants rely on freezers and refrigerators to store and ship their products. In last week’s post, I outlined four variables food processors must understand during process freezing. This week, I want to take a look at freezing methods and equipment, and the applications they’re best suited for. Depending on the type and quantity of food, certain freezers are more useful than others.
Food plant owners who work with frozen products must have a thorough understanding of the freezing process and what it does to food. Freezing, done well, preserves nutrients and provides a good-as-fresh product for the customer. Done badly — well, we’ve all pulled a forgotten, frost-encrusted steak out of the bottom of the freezer before. It’s not very appetizing. This two-part blog series will take a look at best practices for freezing and the applications of various types of freezers.
![[Infographic] 6 Benefits of a CO2/NH3 Cascade System](https://stellarfoodforthought.net/wp-content/uploads/2016/02/6-Benefits-2.png)
CO2/NH3 cascade systems offer food processors a practical way to increase efficiency. By using two centralized refrigeration systems working in unison to provide cooling temperatures, they maximize the effect of carbon dioxide and ammonia. The high-temperature system pulls heat away from the low-temperature system, which in turn uses recirculated liquid to cool the evaporators.
Cascade systems that use CO2 as a secondary refrigerant offer unique advantages. Carbon dioxide is nontoxic and nonflammable, and is also less likely to damage food products in the event of a release. For food plant owners, CO2/NH3 cascade systems offer six key benefits, which are detailed below.
Food processors and distributors are under constant pressure to produce more while spending less on operations. For plant owners looking for greener and more efficient secondary refrigerants, a carbon dioxide (CO2)/ammonia (NH3) cascade system is a viable option. In addition to providing 0 ozone depletion potential (ODP) and 1 global warming potential (GWP), CO2/NH3 cascade systems offer several benefits for food processing and low-temp distribution facilities including:
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