Low-cost effective thermodynamic cycles for green houses
2008
Bukurov, M., Fakultet tehnickih nauka, Novi Sad (Serbia) | Bikic, S., Fakultet tehnickih nauka, Novi Sad (Serbia)
Hereare presented important characteristics of classic heat pump which uses water heat from existing natural sources, as well as steam-water injector which operates in semi-open thermodynamic cycle. Different types of heat pumps are used in air conditioning of green houses. The attention was paid to the profitability of the warm water production, including necessary energy parameters sufficient for its transpotation and distribution in green houses. Also, an example of cogeneration for green house heating is presented. A steam boiler of required capacity is used for small-size green houses. A modern power-heating plant with a combined steam-gas cycle with cogeneration, capacity of 100 MW (electric power), can operate during the whole year with the efficiency rate e=0.9, if its energy is used for air conditioning of closed green houses on about eight ha. The application of the steam-water injector for transportation and distribution of warm water through heating lines provides usage of low temperature heat which cannot be used otherwise.
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