地源热泵与排风多级热回收技术在工程中的综合应用
Integrated application of ground-source heat pump system with multistage heat recovery from extract air in projects
摘要：
结合我国南方地区的气候特点，针对实际工程，提出了带排风多级热回收的地源热泵供暖空调与热水供应集成系统。介绍了该系统的节能原理，在分析建筑全年动态负荷特性的基础上计算了系统的节能性。结果表明，该系统全年供暖空调及供热水平均COP为5.3，投资回收期约5.5年，且冷热负荷不平衡率大大降低，具有较好的节能性、经济性和广阔的应用前景。
关键词：排风多级热回收,地源热泵,集成系统,动态负荷特性,节能性
Abstract：
According to the climate characteristics in southern China, proposes the integrated system for a project. Presents its energy saving principle of the system, and calculates the energy saving property of the system based on the analysis of annual dynamic air conditioning load characteristics. The results show that the yearly average coefficient of performance (COP) is 5.30, the investment payback period is 5.5 years, and the load unbalance rate is greatly reduced. The system is better in energy and economical efficiencies and a broad application prospect.
Keywords:multistage heat recovery from extract air, ground source heat pump, integrated system, dynamic air conditioning load characteristic, energy saving property