一种新型转轮除湿与双级热泵耦合空调系统及系统设计

A New Air-conditioning System of Desiccant Wheel Dehumidification Coupled with Double-stage Heat Pump and System Design

本文提出了一种新型转轮除湿与双级热泵耦合的空调系统,首先采用热湿负荷独立处理的思想,利用双级热泵来满足室内冷负荷和转轮再生负荷的要求,而后建立了系统的物理模型并对该系统的性能参数进行了计算和分析,在满足室内热湿负荷和转轮再生负荷的要求下,双级热泵的2台机组均可同时工作在较高效率范围内。从节能、环保和室内空气品质的角度分析,该系统具有很大的发展潜能。

In this paper, a new air-conditioning system of desiccant wheel dehumidification coupled with double-stage heat pump was brought forward. With this system, using the double-stage heat pump and adopting the idea of independent control of sensible and latent loads, the requirements of cooling load and the desiccant wheel＇ s recovery load could be satisfied. And then, the physical model of this system was established and COP was calculated and analyzed. Under the condition of meeting the requirements of indoor sensible and latent loads and desiccant wheel＇s recovery load, two units of the double-stage heat pump could work within the high efficiency scope at the same time. Furthermore,analyzed from the views of energy-saving, environmental-protecting and indoor air quality, this system had a large developing potential.