Scientific and Technical Substantiation of the Process of Cooling Milk with a Set of Frozen Balls
In the processing industries of the agro-industrial complex, the cooling of raw materials, including raw milk, helps to preserve their biological properties, prevents the propagation of harmful microflora in products. According to the economic efficiency of farms specializing in the production of raw milk the analysis depicts refrigeration equipment as one of the energy-consuming links in the technological flow of the production. Nowadays the usage of this type of equipment certainly reduces the competition of farms with other manufactures and the policy of food import substitution pursued by the Government of the Russian Federation in modern challenging market conditions. Therefore, now and in the future the efforts of scientific and technical personnel of research and design organizations should be focused on scientific search and development of engineering and technology reducing the unit costs of refrigeration equipment for farms and the country's industry as a whole. According to this article, a set of items with a developable surface, definitely using a cold storage substance which is frozen to the eutectic temperatures, located in spherical capsules as one of the alternative technical and technological solutions to the problem of cooling this type of raw material was proposed by the authors. In this case, heat losses are reduced due to the intensification of heat transfer as a result of contact of the processed liquid medium and the cold storage substance; the design of cooling system is simplified; the opportunity for periodic and continuous cooling system operation is created; in cold season and at night during the preferential electricity tariff the usage of the proposed invention can effectively accumulate cold. The method for lowering the temperature of a cold-processed liquid proposed for cooling milk can be widely used on private dairy farms with a small amount of cattle.