Calculation of Refrigeration Capacity of Refrigerated Trucks for Intracity Transportation of Food Products
Abstract
The specific features of intracity transportation (IT) of food products (FP) by specialized refrigerated trucks (SRT) are substantiated. Particularly, during IT the fluctuations of the internal air temperature in the body of SRT caused by presence of external heat coming from the open doors during unloading of FP are not fully compensated by the installed refrigeration units, which leads to violations of temperature conditions for the delivery of FP and negatively influences their quality for subsequent storage. The change in the abundance of epiphytic and endophytic bacteria of fresh parsley has been experimentally proved during the period of delivery and subsequent short-term storage. As a result of full-scale tests, additional reasons of violations of temperature regimes during the IT of FP by SRT were established, namely, the losses of cooling capacity of refrigeration units operating from the refrigerator truck engine due to the peculiarities of movement of SRT at low speeds in the city conditions. A calculating formula for nominal capacity of refrigeration units of SRT is proposed for IT which may be used for developing methods of control of the actual technical condition of the truck and assessing their compliance with international standards in accordance with orders of the Ministry of Transport of the Russian Federation No. 209-211 of 30.06.14.
About the Authors
A. A. Gryzunov
All-Russian Scientific Research Institute of Refrigeration Industry - branch of the V. M. Gorbatov Federal Research Center for Food Systems of RAS
Russian Federation
V. N. Kornienko
All-Russian Scientific Research Institute of Refrigeration Industry - branch of the V. M. Gorbatov Federal Research Center for Food Systems of RAS
Russian Federation
S. V. Avilova
All-Russian Scientific Research Institute of Refrigeration Industry - branch of the V. M. Gorbatov Federal Research Center for Food Systems of RAS
Russian Federation
References
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For citations:
Gryzunov A.A.,
Kornienko V.N.,
Avilova S.V.
Calculation of Refrigeration Capacity of Refrigerated Trucks for Intracity Transportation of Food Products. Storage and Processing of Farm Products. 2018;(2):100-104.
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