窗墙比对供暖房间热舒适及系统能耗影响研究  

Study on the Influence of Window-wall Ratio on Thermal Comfort and System Energy Consumption in Heating Rooms

作　　者：刘娜 刘东[1] 李涫宇 周浩天 Liu Na;Liu Dong;Li Guanyu;Zhou Haotian(School of Civil Engineering and Architecture,Southwest University of Science and Technology,Mianyang,621010)

机构地区：[1]西南科技大学土木工程与建筑学院,绵阳621010

出　　处：《制冷与空调（四川）》2023年第1期66-72,共7页Refrigeration and Air Conditioning

摘　　要：建筑围护结构直接影响室内热湿负荷,而窗户作为三大围护结构中热工性能最差的构件,其对室内热负荷的影响最大,尤其是当存在太阳辐射时会直接影响室内热舒适性。搭建空气源热泵对流-辐射联合供暖系统测试台,并在大窗墙比的情况下增设保温材料设置等效墙的形式,研究了窗墙比对冬季不同供暖模式下室内热舒适及能耗的影响。结果表明,在空气源热泵供水温度一定时,地板辐射末端供暖比风机盘管末端具有更舒适的室内热环境、垂直温度梯度较小并且能耗相对较少;受到太阳辐射的影响,随着窗墙比的增加,地板辐射供暖系统下室内温度波动减小,能耗增加,PMV值变化在热舒适范围内。The building envelope directly affects indoor heat and humidity. Windows, which has the weakest thermal performance among the three envelopes, has the biggest impact on the indoor heat load, especially when solar radiation is present,which directly impacts indoor thermal comfort. To study the impact of window-to-wall ratio on indoor thermal comfort and energy consumption under various terminal units in winter, a test bench for air source heat pump convection-radiation combined heating systems was constructed, and equivalent walls were set up in the form of large windows with additional insulation materials. The findings demonstrate that, compared to a fan coil terminal unit, a radiant floor heating system has a more comfortable indoor thermal environment, a smaller vertical temperature gradient, and consumes less energy when the air source heat pump’s supply temperature is established. When solar radiation is present, however, the indoor temperature variation decreases and energy consumption increases as the window-to-wall ratio increases.

关 键 词：窗墙比 能耗 热舒适 地板供暖 风机盘管 

分 类 号：TK24[动力工程及工程热物理—动力机械及工程]