procedure and installation for regulating the condition of air in an enclosed space, in particular the humidity and temperature in a greenhouse

摘要

Air in an enclosure (13) e.g. a greenhouse, is conditioned by apparatus which includes a brine reservoir (11), a direct contact air-brine-vapor heat exchanger (12), a brine evaporator (16), and a brine circulation system for exchanging brine between the reservoir and heat exchanger (along path B), and between the reservoir and the evaporator (along path C). The apparatus also includes a condenser (17) operatively associated with the evaporator (16), a primary air circulation system constructed and arranged to exchange air between the heat exchanger and the enclosure (along path A) for drying the air in the heat exchanger, and a secondary air circulation system constructed and arranged to exchange air between the evaporator and the condenser for evaporating water from the brine in the evaporator. Water vapor produced by the brine evaporator (16) is condensed in the condenser (17) which is constructed and arranged to transfer the heat released by condensation, which is the same as the latent heat of vaporization of water evaporated from the brine by the vaporizer, to the air in the enclosure (13). A method of conditioning air in an enclosure is also disclosed.