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Abstract: Various farming systems used for the cultivation of oyster mushrooms have temperature problems during warm seasons. Air-conditioning is traditionally accomplished with vapour-compression equipment using FCCH. A hybrid liquid-desiccant system uses low-grade heat as for example provided by a solar collector and would be expected to provide cooling at lower costs. Warm ambient air is primarily dehumidified by calcium chloride without change of temperature. Then the humidity is increased to the final ratio by supplying water. Evaporation requires energy, so the temperature is reduced. The solar energy is subsequently used to regenerate the siccative. A demonstration system has been set up which cools a cultivation area of 300 m2 during summertime. The system is describe and the possibility of using solar heat for desiccant cooling is evaluated.
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