双能耦合供暖系统在近零能耗建筑中的应用  

Application of Dual-energy Coupling Heating System in Near-zero Energy Consumption Buildings

作　　者：丑雪松 谢新奇 郭禹岐 陶进 王爱心 CHOU Xuesong;XIE Xinqi;GUO Yuqi;TAO Jin;WANG Aixin(Jilin University of Architecture Technology,Changchun 130114,China;Northeast China Municipal Engineering Design and Research Institute Co.,Ltd.,Changchun 130021,China)

机构地区：[1]吉林建筑科技学院,长春130114 [2]中国市政工程东北设计研究总院有限公司,长春130021

出　　处：《能源研究与管理》2023年第2期133-139,共7页Energy Research and Management

基　　金：吉林建筑科技学院基金“太阳能-地热能双能耦合在严寒地区近零能耗建筑供暖中的应用研究”(校科字〔2021〕036ZQKJ号)。

摘　　要：为解决严寒地区地源热泵供暖系统运行效率不佳的问题,以长春市某近零能耗示范建筑中的供暖能源系统进行实验研究。利用无法直接使用太阳能供暖系统时蓄热水箱中储存的“低温水”为地源热泵源侧溶液进行提温,从而提高热泵供暖系统的运行效率,进一步完善了近零能耗建筑中的能源系统。在保证室内热环境达标的前提下,对比地源热泵供暖系统以及太阳能耦合地源热泵供暖系统2种运行模式中系统运行状况,结果表明:热泵单独供暖系统机组平均制热效率为3.44,系统能效比为2.41;耦合供暖系统机组平均制热效率达到4.06,能效比为2.84。热泵机组的性能参数提升率为18%,系统能效比提升率为17.8%。相比于地源热泵单独供暖系统,太阳能耦合地源热泵供暖系统节能率高达30%。实验证明太阳能耦合地源热泵供暖系统不仅可以解决太阳能供暖的不稳定性问题,对于热泵机组的性能参数以及系统整体节能性来说提升效果显著。In order to solve the problem of poor operation efficiency of geothermal heat pump heating system in severe cold areas,the heating energy system in a near zero energy consumption demonstration building in Changchun city was tested.The"low-temperature water"stored in the heat storage tank when the solar heating system cannot be directly used is used to raise the temperature of the solution at the source side of the geothermal heat pump,so as to improve the operating efficiency of the heat pump heating system and further improve the energy system in the near zero energy consumption building.Under the premise of ensuring that the indoor thermal environment meets the standard,the system operation status of the geothermal heat pump heating system and the solar energy coupled geothermal heat pump heating system in two operation modes is compared.The results show that the average heating efficiency of the single heat pump heating system unit is 3.44,and the system energy efficiency ratio is 2.41.The average heating efficiency of the coupled heating system unit reaches 4.06,and the energy efficiency ratio is 2.84.The performance parameter improvement rate of the heat pump unit is 18%,and the system energy efficiency improvement rate is 17.8%.Compared with the separate heating system of geothermal heat pump,the energy saving rate of solar energy coupled geothermal heat pump heating system is up to 30%.The experiment proves that the solar coupled geothermal heat pump heating system can not only solve the instability problem of solar heating,but also significantly improve the performance parameters of the heat pump unit and the overall energy saving of the system.

关 键 词：近零能耗建筑 双能耦合 严寒地区 太阳能供暖系统 地源热泵供暖系统 

分 类 号：TK529[动力工程及工程热物理—热能工程] TU83[建筑科学—供热、供燃气、通风及空调工程]