| It is for the moment application most comprehensive a sort of air conditioning form to primary air fan-coil unit system . Both here and abroad the examination by some research worker sometime aimed at some engineerings individual cases. From one angle proceed analysis, it is not availabity universal supersive meaning. The paper research completely deep present consuming energy to Primary air fan-coil unit system, Path and method of energy saving was systematically brought forward.At cooling-heating load aspect, utilize building thermal environment design simulation software DeST work out space load. Bring forward indoor temperature and humidity and fresh air requirement and using the coefficient at the same time.At cold and hot sources aspect, from economiy, security, advance three aspect begin, worked out the best project of cold and hot sources with grey matter element analysis.Again, at cold and hot medium transport aspect, variable flow system is potential bigness in energy saving compare with constant flow system, and primary pump system in variable flow the movement is higher the efficiency. Primary air is handled to the isoenthalpy of the indoors point is reasonable and feasible. Primary air outlet and fan-coil unit air outlet are as best as one can pavallel conetion.Finally, bring forward the control program and method and energy-saving measur of operation management in primary air fan-coil unit system.Energy-saving measure and means brought forward in the paper have great feasibility and practical value of popularizing to the air condition system design and reform and operation the management of the new public building and old the building.
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