The Design And Intermittent Mode Optimization Of Capillary Radiation Air Conditioning System For The Library Reading Room

Capillary radiation ceiling systemis favored by people because of its excellent comfort,energy conservation potential and saving architectural space.Radiation air conditioning also needs to be used in conjunction with a suitable dehumidification system.The fresh air system is a kind of dehumidification which not only dehumidify the indoor air,but also to ensure the health demand of people.The system must be designed with a reasonable way to ensure safety and efficiency.This paper establishes a calculation model of capillary air conditioning building based on TRNSYS,The design of a library reading room air conditioning system on the basis of the model,discussing the relevant design parameters.Aiming at the possible condensation of the system during the intermittent operation of the system,the early start time of the fresh air system and the early close time of the capillary radiator are studied.The main research results are as follows:(1)Radiation air-conditioned room should use PMV indicators to measure the thermal comfort of the human body.It is concluded that the indoor design temperature can be increased by 1.2 ? compared with the common air conditioning when the PMV indicator is used as the measure.(2)The temperature of the water supply to the capillary radiation plate should be 18 ?,the flow rate of the capillary is not more than 0.2m / s.PMV and temperature are used as the intermittent operation mode indoor control target,the energy consumption difference is not significant.(3)Based on the weather parameters of thetypical meteorological year,the conclusion is drawn: Getting the optimum start-up time of the fresh air system and the optimal downtime of the capillary tube when the system intermittent operation on May 1st to September 30 th.And provide reference for the design and control strategy of radiation air conditioning in this area...