Greenhouse operating method, involves passing hot water through conduits in roof in order to minimize heat loss

摘要

#CMT# #/CMT# A liquid such as water is passed through conduits (9) in the greenhouse roof, the temperature of the liquid entering the conduits being higher than the desired temperature inside the greenhouse. #CMT# : #/CMT# The same liquid can be used to cool the greenhouse by removing heat generated by sunlight shining onto the roof. An independent claim is also included for the greenhouse, which includes a pump for creating the flow of liquid through the roof conduits. #CMT#USE : #/CMT# For operating a greenhouse. #CMT#ADVANTAGE : #/CMT# Unwanted heat loss via the roof is reduced when the ambient temperature outside the greenhouse is relatively low. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The figure shows a schematic perspective view of parts of the greenhouse. 2, 3 : glass panels 2` : hollow column 4, 5 : hollow beams A-D : flow of liquid.