为了系统的对空调系统各部分进行深入的节能研究，本课题设计和建立了HVAC实验系统。该系统集变风量空气处理、冷冻水、冷却水、供热、制冷、环境等多个系统于一体，配合多种高精度的测量手段、完备的数据采集和处理功能，以及先进的控制系统，是一个综合性、多功能的实验系统，可以为暖通空调多方面的研究提供实验平台，也是本课题的实验装置。

冷冻水系统是空调系统的主要部分，研究冷冻水系统的节能对空调节能有着的重要的意义。水流量控制与进水温度控制是水系统主要的两种控制手段，本课题将这两种调节手段结合起来，以空调末端盘管为对象，研究其制冷性能和除湿性能。

论文先从理论角度建立风机盘管热湿交换计算模型，并编制计算程序。通过理论计算，得出不同工况下风机盘管的制冷和除湿的性能。根据计算结果，分析了进水温度和水流量对其性能的影响，结果表明：提高进口水温，换热盘管的制冷量和除湿量都会有明显的下降，除湿量下降幅度显著；变化水流量，对于制冷量变化的影响不明显，而对于除湿量却有明显的调节效果，当水流量低于标准水流量的80%时，这种效果尤为显著。

用实验手段测量不同进口水温和水流量的工况下，风机盘管的制冷量和除湿量，并与计算结果进行比较。结果表明，计算模型基本可以反映不同进口水温、水流量情况下盘管换热器的制冷和除湿性能的变化规律，对于计算结果分析得到的结论是正确的，对实际应用具有指导意义。计算的偏差由建立计算模型时将波形套片简化成平直套片引起的。

This aper designed and established an HVAC intergration experimental system which is including VAV system, chilled wter syster, cooling water system, refrigeration system environmental system and some other systems. It is a comopositive and flexible experimental system with high precision measure instruments and advanced control technique.

It is important to study the energy-saving of chilled-water system because this system is a main portion of AC system. This paper analyzes the refrigerating capacity and dehumidifying capacity of fan-coil unit (FCU) in different chilled water volume and different chilled water temperature turns into FCU. This paper set up a calculating model which can calculate a certain coil heat-exchanger’s with given parameters and calculated the refrigerating capacity and dehumidifying capacity of a FCU in different chilled water volume and different chilled water temperature turns into FCU and analyzed the effect to coil heat-exchanger in different chilled water volume and different chilled water temperature turns into FCU. The result shows that the dehumidifying capacity of a certain coil heat-exchanger reduces proportioned with the increase of chilled water temperature turns into it; the dehumidifying capacity increases obviously with the increase of chilled water volumn while the refrigerating capacity increases slightly.

This paper measured the refrigerating capacity and dehumidifying capacity of a certain FCU by expertment, and compared the datas get from the experiment with the datas calculated. It is shows that the calculation model provides comparable results to experiment and the results based on calculating model are useful for design.