229-严寒地区某绿色建筑地源热泵系统性能分析及优化.pdfVIP

严寒地区某绿色建筑双源热泵系统运行性 能分析及优化建议 1 1 1 1 1 2 刘馨 ，李宗翰 ，冯国会 ，吴玥 ，黄凯良 ，刘树林 1 沈阳建筑大学，110168，沈阳；2 青岛绿城建筑设计有限公司，266071，青岛 摘要：绿色建筑可再生能源系统应用广泛，实际效果却存在不匹配的问题。本文针对严 寒地区某绿色建筑双源（地源、空气源）热泵系统一个供冷季和两个连续供暖季的不同运行 模式进行实测，重点分析了采暖季不同运行模式下热泵系统能效比，对该双源热泵系统的性 能匹配度做出评价。分析结果表明，当2017 年空气源热泵未启动时，系统供热量相比2016 年下降了40%，机组COP 降低了22%，系统COP 下降了27%。并且系统运行实测值相较于设 计值的匹配度，低于2016 年供暖季采用双源热泵系统运行时的匹配度。 关键词：绿色办公建筑；双源热泵；运行模式；运行特性分析；匹配度 Performance analysis and optimization of a green building dual source heat pump system in cold region Liu Xin 1, Li Zonghan 1, Feng Guohui1, Wu Yue 1, Huang Kailiang 1, Liu Shulin 2 （1 Shenyang JianZhu University, 110168 Shenyang ;2 Qingdao Green City Architectural Design Co.,Ltd. 266071, Qingdao) Abstract: the renewable energy system of green building was widely used, but the actual effect was not matched. The energy efficiency ratio of the heat pump system under different operation modes in the heating season was analyzed, and the performance matching degree of the two-source heat pump system was evaluated. It was shown that the heat supply of the system decreased by 40 percent compared with 2016, the unit COP was reduced by 22 percent, the system COP was reduced by 27 percent when the air source heat pump was not started in 2017. And the measured value of the system operation was compared with that of the design value. The matching degree was lower than that of the dual-source heat pump system in the heating season of 2016. Keywords: green office building; double source heat pump; operation mode; matching degree 0 引言 地源热泵技术作为一种清洁能源，在绿色建筑中广泛应用。近年来，地源热泵经历了产 业发展高潮后，部分地源热泵项目运行的弊端渐渐显现了出来[1] [2] [3] [4] ：系统所需耗能量的 评估不充分，施工技术不完善，机组维护困难或故障难以修复等问题，造成系统实际运行中 能效降低，制约了地源热泵的发展。附加新能源对系统进行改造显得十分必要。 目前，研究人员对地源热泵系统的运行特性和优化方案等方面投入研究颇多。刘玉峰[5] 通过对地源侧和负荷侧出水温升、室外温度变化范围的研究分析出冬季和夏季机组和系统 COP，并提出冬季和夏季的高效运行方式；李先