辐射与对流耦合空调系统及其控制策略
Coupled air conditioning system of radiation and convection and its control strategy
摘要：
介绍了一种辐射与对流耦合空调系统，该耦合系统采用基于双冷源的温湿度独立控制系统，适用于全天冷负荷波动较大的建筑。夜间室内的潜热负荷和显热负荷分别由独立新风和辐射顶板承担，白天室内冷负荷过大、辐射顶板的制冷量不足时，风机盘管开启，作为辅助制冷设备。该耦合系统既充分利用了辐射顶板舒适的特点，又采用风机盘管弥补了其换热量有限的缺点。给出了该耦合空调系统的控制方案，确立了4种工作模式。针对南京地区一典型住宅卧室建立了除湿模型，计算得到了该房间的预除湿时间。
Abstract：
Presents a coupled air conditioning system of radiation and convection which adopting a temperature and humidity independent processed air conditioning system with double cold sources. This system can be applied to buildings with huge fluctuation of cooling load all day long. At night, indoor latent and sensible heat load can be handled by dedicated outdoor air system and radiant ceiling cooling respectively. During the daylight, fan coil units can be used when the cooling capacity of the radiant ceiling is not enough in summer. This coupled system takes the advantages of radiant ceilings comfort characteristics and makes up the shortage of its insufficient cooling capability. Proposes a control strategy and four operational modes of this system. Builds an indoor dehumidification model for a typical bedroom of the house in Nanjing, and calculates the predehumidification time.
Keywords:coupled system, radiant ceiling, fan coil, dedicated outdoor air, control strategy, predehumidification time