Сучасні проблеми холодильної техніки та технології (Modern problems of refrigeration technology and technology)

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Design of periodic operation ammonia–water absorption refrigeration units in atmospheric water generation system
(2017) Ozolin, N. E.; Titlov, A. S.
It is a common knowledge that one of the most valuable resources in the future of our planet is going to be fresh water, and the demand for water resources is already one of the main factors in global logistics of contemporary world, and this trend will only grow in the foreseeable future. One of the developments in water production technology is mechanical air dehumidification — condensation of water vapor on the surfaces with a temperature below the dew point. In this case, there are great prospects for the methods associated with the work of independent generators of cold — chillers that are guaranteed to provide the temperature below the dew point temperature. A necessary condition for operation of compression refrigeration machine is the availability of electrical energy. At the same time, the majority of countries facing water scarcity are limited in energy resources, too. Often the readily available source of energy in there is the sun. In this regard there have been developed original schemes of absorption water-ammonia refrigeration units of periodic operation (AWRU PO) based on solar collectors, which differ with autonomy and independence from the sources of electrical energy, and unlike heat-analogues (steam jet and lithiumbromide absorption) can be operated with air cooling of their heat-dissipating elements.