CAJ | 학술논문

文中提出了一种土壤源热泵冷凝热回收系统,能够减少冬夏两季土壤源热泵系统从土壤冷热源排放吸收热量不均对土壤温度场所造成的影响,并结合火用平衡方程建立了土壤源热泵系统冷凝热回收的优化模型.基于此模型,探讨了系统冷凝器和地下埋管的优化配置,通过模拟计算对该系统在制冷工况下改进前后的运行情况进行了分析对比,结果显示土壤源冷凝热回收系统应用于实际工程能够提高整个系统的COP以及火用效率.
문중제출료일충토양원열빙냉응열회수계통,능구감소동하량계토양원열빙계통종토양랭열원배방흡수열량불균대토양온도장소조성적영향,병결합화용평형방정건립료토양원열빙계통냉응열회수적우화모형.기우차모형,탐토료계통냉응기화지하매관적우화배치,통과모의계산대해계통재제랭공황하개진전후적운행정황진행료분석대비,결과현시토양원냉응열회수계통응용우실제공정능구제고정개계통적COP이급화용효솔.
The heat quantity discharged to the soil by ground-coupled heat pump system in summer is very larger than it absorbed from soil in winter, which will influence the temperature field in the soil seriously in some instances. This paper presents the ground-coupled heat pump with condensing heat recovery system that can balance the heat quantity. The optimal model of the ground-coupled heat pump system with condensing heat recovery system is set up according to the exergy balance theory. Base on this model, the optimal arrangement between chillers and under exchanger is analyzed. The operating conditions of improvement system and general system are studied by simulation under cooling condition. The result shows that the optimal model is applied to get higher COP and exergy efficiency.