Solar cooling system

Many foods like fruits, vegetables, meat, dairy products) are stored in refrigeration equipment for periods on the order of a few weeks at a temperature from 0 to 4 Vwith in order to avoid damage and keep the freshness and quality. Freezing food systems necessary for long-term storage at a temperature of-18-35VC. storage and transportation of Food to pass into the room, covering a wide range of sizes, refrigerated warehouses for household refrigerators. Solar cooling is of great interest, especially in developing countries where food preservation often as difficult a problem, as food production.

Energy saving, view of the solar cooling system is the possibility of saving energy in the range of 25-40% compared with the equivalent cooling capacity of conventional water-cooled refrigeration system. Therefore, the use of solar cooling system allows to save energy, especially during the summer season. The contribution of these systems in the food industry and, consequently, the economy will be high.

Solar mechanical cooling, of whatever type, which is currently in the development stage. The technology is ready, but the cost factors standing in the way of active marketing program. Currently, active solar cooling is not enough competitive position relative to the standard cooling systems (voltage electricity and fossil fuels). During the last decade the situation has changed quickly, because more and more interest in renewable energy, especially solar energy, to reduce the use of fossil fuels and electricity.

Solar energy can be used in various systems that are available for cooling applications. These systems are :

* Rankine cycle-vapor compression system,
* absorption cycle system,
* adsorption system,
* water ejection systems,
* Rankine cycle-reverse cycle Brighton system, and
* night radiation of the system.

Among these systems, solar powered absorption cooling cycle is the most popular system for solar cooling systems due to the following advantages:

* silent operation
* high reliability,
* long service life,
* ensuring the effective and economical use of low-potential energy sources (e., solar energy, waste, energy, geothermal energy, natural gas),
* ease of implementation and performance management
* no Cycling losses during the on-off operations, and
* Meeting the variable cooling load easily and efficiently.

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