嚴寒地區(qū)典型城市既有非節(jié)能居住建筑采暖能耗與節(jié)能潛力研究
發(fā)布時間:2018-05-04 20:00
本文選題:居住建筑 + 能耗水平; 參考:《沈陽建筑大學學報(自然科學版)》2017年06期
【摘要】:目的研究嚴寒地區(qū)典型城市既有非節(jié)能居住建筑的采暖能耗,分析二次輸配管網及建筑本體的節(jié)能潛力.方法選擇兩家供熱公司的兩座換熱站進行實地測試,對換熱站、二次輸配管網以及建筑本體3處節(jié)點進行數據收集,分析采暖季的供暖能耗水平以及各節(jié)點處的能耗損失.通過與《民用建筑能耗標準》(GB/T51161—2016)及《居住建筑節(jié)能檢測標準》(JGJ—T132—2009)進行對比,得出各節(jié)點處的節(jié)能潛力.結果兩座換熱站間的各節(jié)點處的節(jié)能潛力差異較大,換熱站的補水量處于較高水平.建筑本體單位面積耗熱量平均值為0.343 GJ/(m2·a),85.7%的建筑滿足過量供熱率,換熱站的二次輸配管網熱損失在20%左右,換熱站的供暖能耗平均值為0.37 GJ/(m2·a).結論科學評估非節(jié)能居住建筑能耗水平和節(jié)能量,加強供熱運行的管理水平,按需供熱,制定合理的運行調節(jié)策略,可以挖掘既有居住建筑節(jié)能潛力.
[Abstract]:Objective to study the heating energy consumption of existing non-energy saving residential buildings in typical cities in severe cold areas and analyze the energy saving potential of secondary transmission and distribution networks and buildings. Methods two heat exchange stations of two heating companies were selected for field test. Data were collected from three nodes of heat exchange station, secondary transmission and distribution network and building body, and the heating energy consumption level and energy loss of each node in heating season were analyzed. By comparing it with GB / T51161-2016) and JGJ-T132-2009), the potential of energy saving at each node is obtained by comparing it with GB / T51161-2016) and JGJ-T132-2009). Results the energy saving potential of each node of the two heat exchange stations is quite different, and the amount of supplementary water in the heat exchange station is at a higher level. The average heat consumption per unit area of the building is 0.343 GJ/(m2 / a, and 85.7% of the buildings meet the excess heating rate. The heat loss of the secondary transmission and distribution network of the heat exchange station is about 20%, and the average heating energy consumption of the heat exchange station is 0.37 GJ/(m2 / a. Conclusion the energy consumption level and energy saving level of non-energy saving residential buildings can be scientifically evaluated, the management level of heating operation should be strengthened, the operation adjustment strategy can be formulated according to the need, and the energy saving potential of existing residential buildings can be excavated.
【作者單位】: 沈陽建筑大學市政與環(huán)境工程學院;
【基金】:國家重點研發(fā)計劃項目(2016YFC0700104-07) 能源基金會研發(fā)項目(G 1506-23358)
【分類號】:TU111.195;TU832
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