低谷电供热模式下房间围护结构调温性能分析  

Thermal Performance of the Room with Heat Storage by Building Envelopeunder Valley Electricity Heating Mode

作　　者：刘一墨 张岩桐 战扬 金庆焜[1] 张晋[1] LIU Yimo;ZHANG Yantong;ZHAN Yang;JIN Qingkun;ZHANG Jin(Logistics Support Department,Aerospace Center Hospital,Beijing 100049,China;Office Affairs Management Bureau,Xinhua News Agency,Beijing 100803,China)

机构地区：[1]航天中心医院后勤保障处,北京100049 [2]新华通讯社机关事务管理局,北京100803

出　　处：《建筑节能(中英文)》2025年第4期49-56,共8页Building Energy Efficiency

摘　　要：随着我国峰谷分时电价机制持续完善,用户侧主动提高谷电利用率成为了缓解电网供电压力的重要手段。借助DeST-h建立了北京地区案例房间的热过程计算模型,提出了室温保证率、室温单日度时数和峰电期间室内温度保证时数作为室温调控效果的评价指标,分析了低谷电供热模式下房间围护结构热工性能对室内温度调控效果的影响,提出了使用低谷电供热房间的参数建议。结果表明,仅利用低谷电供热的模式基本能够满足案例房间在整个供暖季中的温度需求,当房间的外墙体积比热容达到5000 kJ/(m~3·K)时,房间的室温保证时数接近峰值。另外,借助被动式设计理念的房间利用太阳辐射补充峰电时期房间蓄热量,解决了仅利用低谷电供热模式下峰电期间蓄热量不足的问题,与低谷电供热模式具有较高的适配性。With the continuous expansion of China’s peak-valley time-of-use electricity pricing,improving the utilization rate of valley electricity actively is important to reduce the supply pressure of power grid.The thermal process of a case room in Beijing was established by means of DeST-h.The room temperature guarantee rate,room temperature daily degree hours and guaranteed hours of indoor temperature during peak power periods were proposed as evaluation indexes.The influence of the thermal performance of the room envelope on the effect of indoor temperature regulation under the off-peak electricity heating mode was analysed,and the parameter suggestions of using off-peak electricity for heating room were supplied.The results show that valley electricity heating mode can meet the temperature demand of the case room throughout the heating season,and when the volume specific heat capacity of the external wall of the room is 5000 kJ/(m 3·K),the indoor temperature guarantee hours of the room were close to the peak.In addition,with passive design concept,the room utilizes the solar radiation to supplement the indoor heat storage during the peak power period,solving the insufficient heat storage during the peak power period only using the low valley electricity heating mode,and the low valley electricity heating mode has a high degree of adaptability.

关 键 词：蓄能 热性能 围护结构 分时电价 

分 类 号：TU832[建筑科学—供热、供燃气、通风及空调工程]