高温热泵转轮除湿及辐射供冷空调系统性能研究  

Performance of an Air Conditioning System Integrating High Temperature Heat Pump Desiccant Wheel and Radiation Cooling System

作　　者：刘异 陈柳[1] LIU Yi;CHEN Liu(Xi’an University of Science and Technology,Xi’an 710054,Shaanxi,China)

机构地区：[1]西安科技大学,陕西西安710054

出　　处：《建筑科学》2020年第8期92-98,共7页Building Science

基　　金：国家自然科学基金项目“深井温湿度独立控制降温系统研究”(51404191)。

摘　　要：本文提出将高温热泵转轮除湿及辐射供冷复合空调系统应用于高温高湿地区,解决辐射顶板表面结露严重的问题。系统将高温热泵转轮除湿的新风空调系统与室内辐射供冷系统结合,高温热泵转轮除湿空调系统提供低含湿量的新风送入房间,承担全部潜热负荷和新风负荷,辐射板承担显热负荷,对系统进行了热力学分析,分析表明系统能达到送风状态点。应用Airpak软件数值模拟研究了送风湿度对顶板结露和人体舒适度的影响。结果表明室内设计状态点温度26℃、相对湿度45%,辐射板下方能形成一层干燥的空气保护层,将辐射板与空间下部高湿气流隔开,房间平均PMV-PPD值分别为0.48/22%,满足人体舒适性要求。An air conditioning system that integrates high temperature heat pump desiccant wheel and radiation cooling system is proposed to improve serious condensation on radiant cooling panel in high-temperature and highhumidity areas.Specifically,the system combines a high temperature heat pump desiccant wheel hybrid fresh air system and an indoor radiant cooling system.The former provides fresh air with low moisture content to enter the room and bear all latent heat load and fresh air load,while the latter only bear part of sensible heat load.A thermodynamic analysis shows that the system can reach the state point of air supply.How the humidity and outlet layout of air supply affect the comfort of human body and condensation was simulated in Airpak.Results show that when the indoor design state point was 26℃/45%in the bottom air supply mode,a dry air protective layer was formed under the radiant cooling planes to separate it from the high moisture airflow at the lower part of the space.In this way,the system can effectively prevent condensation on the radiation cooling plane.The average value of PMV-PPD was 0.48/22%,which meets the requirements of thermal comfort.

关 键 词：转轮除湿 高温热泵 辐射供冷 AIRPAK 舒适性 

分 类 号：TU831[建筑科学—供热、供燃气、通风及空调工程]