Category Archives for Industrial Refrigeration

Relative Merits Of Gas And Mechanical Pumping

While the first cost of the two systems are usually considered about equal, the gas- and mechanical-pumping systems have advantages and disadvantages. Advantages of the gas-pumping system • lower repair costs • lesser potential for refrigerant leak • no rigid … Continue reading

14. May 2018 by Jim
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Refrigeration In The Chemical Industry

The pharmaceutical industry has already been mentioned as a user of refrigeration in freeze-drying processes. An approach that seems popular in that industry is also to chill a fluid and distribute this cold fluid (glycol antifreeze or alcohol, for example) … Continue reading

26. April 2018 by Jim
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Refrigeration In Construction

Two important uses of refrigeration in large construction projects are the cooling of large masses of concrete, and the freezing of soil to facilitate excavation. During the hardening of concrete, its chemical reaction is exothermic, and if heat were not … Continue reading

26. April 2018 by Jim
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Refrigeration In Manufacturing Plants

There are frequent and varied needs for refrigeration in the machining, forming, and fabrication of products made from metals, plastics, and other materials. An example is the cooling of the fluid sprayed on the point-of-contact between a machine tool and … Continue reading

26. April 2018 by Jim
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Industrial Air Conditioning

If all air conditioning were to be classified into two groups—comfort air conditioning and industrial air conditioning—the basic difference would be in the objective. Comfort air conditioning is performed for people, while industrial air conditioning is directed toward processes. On … Continue reading

26. April 2018 by Jim
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Freeze Drying

Freeze drying is a process that finds application in both the food industry as well as some process industries, such as pharmaceuticals. The processes include first freezing the product, then removing the water by sublimation in which the water in … Continue reading

26. April 2018 by Jim
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Refrigeration In Food Processing

The usual purpose for refrigerating and freezing foods is to preserve their quality, which technically is changing what would be natural processes of deterioration. Refrigeration may also play a role in facilitating a change in the character or chemical structure … Continue reading

26. April 2018 by Jim
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Frozen Food

The history of frozen food goes back to middle 1800’s. As early as 1861 fish was frozen with ice and salt and stored for 8 to 10 months. The first successful ocean shipment of frozen meat was on the French … Continue reading

25. April 2018 by Jim
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Refrigerated Storage Of Unfrozen Food

The shelf life of most foods is enhanced by storage at low temperatures. Figure 1.2 shows the shelf life of several food products as a function of temperature1. The life of all products shown increases as the storage temperature drops, … Continue reading

25. April 2018 by Jim
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What Is Industrial Refrigeration?

One characteristic of industrial refrigeration is the temperature range it embraces. While evaporating temperatures may be as high as 15°C (60°F), the range extends down to about -60° or -70°C (-76° or -94°F). At temperatures much lower than about -70°C … Continue reading

25. April 2018 by Jim
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