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--One of the problems encountered today is the inefficiency of refrigeration systems and electrical equipment. The present study proposes the manufacture of a refrigeration chamber that responds to a great variety of needs both in industrial processes, medicine, and domestic service, becoming an indispensable process within the socio-productive sector. The proposed system has an investigative scope, as a contribution to the agricultural food sector for the derivation of variables and the behavior of products (plants-food) and its method of conservation for quality towards the consumer. The type of investigation responds to the experimentation supported by an observation card with variable rate testing tests. Given the aforementioned, a freezing and refrigeration system is elaborated, taking advantage and optimizing an air conditioning system that works up to 24°C in the room and under the modification obtain temperatures of -15°C, starting from an average temperature of 29°C and a 65% relative humidity of the outside. For the selection of the equipment, the installed capacity of 1.5 tons of cold was considered with an average consumption of 6 amperes/hour, R22 refrigerant gas (SA, 2009) and for its verification, an electronic controller TH20 (RCA) was used; As a product, water is used, reaching freezing after 20 minutes of operation of the equipment. Keywords---freezing, installed capacity, photovoltaic panel, R-22 gas, temperature, TH20 roller.

Design and construction of a cold room with photovoltaic support for lighting