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Refrigeration

Views: 14506

Cryogenic vs. Mechanical Freezers: The Best Uses for Each Method

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.

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Views: 2722

Process Freezing 101: 4 Variables Food Processors Must Understand

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.

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Views: 1929

[Infographic] 6 Benefits of a CO2/NH3 Cascade System

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.

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Views: 1316

[Infographic] 2 Key Questions to Answer Before Your Packaged Refrigeration Equipment Installation

For the past two weeks, we’ve discussed packaged refrigeration equipment: a system that uses ammonia or CO2 and a secondary refrigerant, allowing facilities to reap the benefits of ammonia while also minimizing the charge and risk. We’ve already reviewed the various ways these systems can benefit food processors and discussed the five different types of these low-charge chillers available. However, if you decide to introduce packaged refrigeration equipment into your food manufacturing plant, there are some key questions you must answer before installation to ensure an efficient, smooth installation process.

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Views: 4797

[Infographic] Factors That Influence Cold Storage Warehouse Cost Savings

At the close of 2014, data released by the International Association of Refrigerated Warehouses showed that the total capacity of refrigerated warehouses has increased 20 percent since 2012. And over the past few months, trade magazines have been honing in on the topic, tapping into our team members at Stellar for insights into cold storage construction, including rising technologies, efficiencies and best practices. Continue Reading “[Infographic] Factors That Influence Cold Storage Warehouse Cost Savings”

Views: 15822

How to Prevent and Repair Frost Heave Under Your Freezer Floor

Are you failing to tend to what’s right underneath your feet? Though concrete freezer floors can last up to more than half a century, the underfloor heating system beneath still requires regular preventive maintenance. If you don’t take the proper precautions, frost can form in the sub-grade soils resulting in raised, cracked floors and a host of potential problems, including: safety concerns, operational issues and significant structural damage. Continue Reading “How to Prevent and Repair Frost Heave Under Your Freezer Floor”

Views: 1504

The One Mistake You’re Making With Your Compressor Logs

After working with compressors for nearly three decades, there’s one mistake I see people making time and time again when it comes to their compressor maintenance. They keep their daily logs, recording necessary temperatures regularly, but when they’re through, they simply put the logs aside and don’t look at them again. The results are not analyzed for corrective measures, if discovered. Are you looking back to ensure you’re addressing the inconsistencies and issues you notice during your compressor evaluations? Analyzing the daily logs is just as important as writing it down. Continue Reading “The One Mistake You’re Making With Your Compressor Logs”

Views: 1917

14 Factors to Keep Your Refrigeration Compressor Package in Check

While we’ve already blogged about ways to determine the fitness of your refrigeration compressor, it’s important to pay attention to the big picture as well. Ensure you keep up with the the health of your entire refrigeration compressor package, as failure to check components including the motor, control panel and suction superheat, can cause major failures. Here are the 14 key factors to check within each component of your compressor package.

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