两种海水源热泵系统的性能测试及经济性分析

Performance test and economic analysis of two kinds of seawater source heat pump system

海水源热泵是直接或间接利用海水的能量进行冬季供暖、夏季供冷、全年热水供应的技术。文章分析了青岛地区采用直接热利用和间接热利用的两个工程实例,测试了两个热泵系统实际运行性能,并进行了节能性、技术性和经济性对比分析。根据测试及数据分析,与间接热利用系统相比,直接热利用的系统COP值高,初投资低,节能效益好,在采取措施保证热泵系统使用寿命的前提下,推荐采用直接热利用系统。

The seawater source heat pump technology use the energy of urban sewage for the winter heating and summer cooling,the hot water supply technology directly or indirectly.This paper mainly discusses two projects(one is direct heat utilization,another is indirect heat utilization)in Qingdao using sea water source heat pump system.Energy saving effect,technical and economic analysis are discussed in this paper.Provides reference for designing and using sea water source heat pump system in coastal areas of north china.According to the test and analysis data,compared with the indirect heat utilization system,direct heat utilization system has higher COP,lower initial investment and better energy-saving benefit.On the premise of taking measures to ensure the service life of the heat pump system,direct heat utilization system is recommended.