CAJ | 학술논문

海水源热泵区域供热供冷系统作为一项可再生能源利用技术,目前尚缺乏有关该系统实际应用方面的研究。作者对黄海北部某海水源热泵区域供热供冷系统进行了实地调研与测试,获得了该系统运行方面的大量第一手数据,经计算得到；2013年冬季极端海水温度期间,所测试热泵机组的实际平均制热性能系数为2.43,相应工况下的系统平均制热性能系数为1.86；2011—2012年供暖季机组和系统的平均制热性能系数分别为2.99和2.30；夏季“免费”供冷(热泵机组不开启)测试期间,系统的平均制冷性能系数为3.35。文章进一步对夏季“免费”供冷期间系统制冷性能系数不高的原因进行了分析。分析结果表明,由于用户的风机盘管未按实际冷水温度选择,致使实际运行时冷水供﹑回水温差仅有1℃,从而导致水泵运行能耗过高。
해수원열빙구역공열공랭계통작위일항가재생능원이용기술,목전상결핍유관해계통실제응용방면적연구。작자대황해북부모해수원열빙구역공열공랭계통진행료실지조연여측시,획득료해계통운행방면적대량제일수수거,경계산득도；2013년동계겁단해수온도기간,소측시열빙궤조적실제평균제열성능계수위2.43,상응공황하적계통평균제열성능계수위1.86；2011—2012년공난계궤조화계통적평균제열성능계수분별위2.99화2.30；하계“면비”공랭(열빙궤조불개계)측시기간,계통적평균제랭성능계수위3.35。문장진일보대하계“면비”공랭기간계통제랭성능계수불고적원인진행료분석。분석결과표명,유우용호적풍궤반관미안실제랭수온도선택,치사실제운행시랭수공﹑회수온차부유1℃,종이도치수빙운행능모과고。
Seawater source heat pump system (SWHP) is a renewable energy utilization system.But it is lack of practical application study about the system up to now.In this study, a SWHP system in coastal area of the northern Yellow Sea was measured.The winter measurement results showed that the average heating COP of a heat pump unit and the whole system were 2.43 and 1.86 respectively dur_ing the measurement period while the corresponding COP were 2.99 and 2.30 respectively during the whole heating season.The summer measurement results showed that the average cooling COP of the system was 3.35 during the measurement period.This paper further ana_lyzed the major cause of the low free cooling system COP, and it is that the fan coil units are not selected by actual seawater temperature, which leads to the low supply and return water temperature difference (only 1 ℃) and high circulating pump energy consumption.