CAJ | 학술논문

针对严寒地区集中供热系统能源利用效率低的问题，结合该地区应用地源热泵系统存在土壤吸/排热不平衡的问题，本文提出将一次网的高温蒸汽（热水）作为吸收式热泵发生器热源的地源热泵系统，利用空气源热泵保障地下换热系统热平衡。介绍了复合系统的运行模式，确定了系统的运行控制策略，选取哈尔滨地区某办公建筑对系统的全年运行性能进行分析。通过计算，系统平均综合性能系数为2.1，相比传统的供暖空调方式节能33.1%。该系统全年运行土壤取/排热不平衡率为3.8%，可以保证土壤温度场以年为周期的热平衡；系统可以长期稳定运行。
침대엄한지구집중공열계통능원이용효솔저적문제，결합해지구응용지원열빙계통존재토양흡/배열불평형적문제，본문제출장일차망적고온증기（열수）작위흡수식열빙발생기열원적지원열빙계통，이용공기원열빙보장지하환열계통열평형。개소료복합계통적운행모식，학정료계통적운행공제책략，선취합이빈지구모판공건축대계통적전년운행성능진행분석。통과계산，계통평균종합성능계수위2.1，상비전통적공난공조방식절능33.1%。해계통전년운행토양취/배열불평형솔위3.8%，가이보증토양온도장이년위주기적열평형；계통가이장기은정운행。
In the present study, regarding the low energy efficiency of traditional central heating system in cold regions, and combining with the endothermic/reject heat unbalance of soil for application of ground source heat pump, the ground source heat pump system was proposed by using high temperature steam/water from primary network as the generator heat source and using air source heat pump to ensure the thermal balance of underground heat exchange system. The operation modes of the coupled system were introduced; the control strategy of the system operation was determined and the annual operation performance was analyzed on an office building in Harbin. The results showed that, the system average coefficient of overall performance was calculated to be 2.1, and the energy saving of the proposed system was 33.1%comparing with the traditional central heating way. The soil endothermic/reject heat unbalance rate of the system was 3.8%, which can ensure thermal balance of the soil temperature filed over one year cycle. The long-run effects of the system tended to be stable.