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Title of article Simulating the Refrigeration of Batch Dairy Products in a Multizone Cold Supply System
Authors

Buyanova I., Kemerovo Institute of Food Science and Technology, The Russian Federation, Kemerovo, ibuyanova_@mail.ru

Section: PROCESSES, EQUIPMENT AND APPARATUS FOR THE FOOD INDUSTRY
Year 2014 Issue 2 DOI 637.52.001.8
Annotation Methods that simulate the fast refrigeration of foods on the basis of a model of adjustable heat sink according to the principle of programmed freezing are considered. In this case, a fast freezer is seen as a system of modules, each of which can independently ensure the necessary heat-sink conditions for the fast refrigeration process. The focus is made on the analysis of physicochemical processes that form the water crystallization front at the first freezing stage, taking into account the thermophysical specifics of organizing a multizone combined system of refrigeration supply. Test-bench studies were conducted to obtain the main regularities of fast freezing of single-piece packaged dairy products by the nitrogen + air combined method in a wide range of heat-exchange conditions. The fast freezer has two freezing zones with various temperatures, allowing an efficient distribution of energy costs and creating the optimal conditions for freezing and for the continuity of the technological cycle. A mathematical model has been developed on the basis of experimental data analysis to determine the main technological parameter, the duration of food refrigeration in a nitrogen + air combined two-zone fast freezer with adjustable heat sink. The integral characteristics of the mathematical model have been determined. The modelВґs adequacy to the real freezing process has been proved.
Keywords Combined method, refrigeration, dairy products, fast freezer, nitrogen, temperature, zone, duration, calcu-lations
Artice information Received November 30, -0001
Accepted November 30, -0001
Available online November 30, -0001
Imprint article Buyanova I. Simulating the Refrigeration of Batch Dairy Products in a Multizone Cold Supply System / Buyanova I. // Food and Raw Materials. - 2014. - no. 2. - P. 121-129
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