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refrigeration and air conditioning industry is characterized by stable growth. It is stable, in which the replacement join markets with new applications, to promote his health.
The high cost of energy since the 1970s has become an important factor in promoting technical problems for the individual engineer. Innovative approaches to improving the effectiveness, which once were considered inexpedient now receive serious consideration and often economically justified. For example, regeneration of low-temperature heat through temperature increase energy levels with a heat pump (cooling system). The days of the development of the system at a low price with little or no operational costs, but now, it seems, in the past..... |
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uses Other refrigeration and air conditioning span sizes and capacities of small household appliances in large scale industry. Drinking fountains of Small refrigeration, cold storage of drinking water and use as needed. .... |
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Some products need to operations in addition to freezing and cold storage, and these processes entail cooling. Dairy products are a major dairy products-milk, ice cream and cheese. For milk pasteurization temperature of about 73C and hold it for about 20 seconds. Milk is cooled and, ultimately, refrigerated up to 3 or 4C for storage. In the production of ice cream12 ingredients first pasteurized andjthor-oughly mixed. Then, refrigeration equipment mixture cools down about 6C, and then it goes into the freezer. Freezer temperature falls up to-5C, at which temperature the mixture solidifies, but still quite a flow of liquid in the container. From this point of ice cream store at temperatures below freezing. .... |
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Lot of meat, fish, fruit and vegetables are perishable, and their storage life can be extended cooling. Fruits, vegetables, and processed meats, sausages are stored at a temperature just above zero, to prolong their life. Other kinds of meat, fish, vegetables and fruits, frozen and stored for many months at low temperatures until they are thawed and prepared consumer. .... |
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