Urban morphology and building heating energy consumption: Evidence from Harbin, a severe cold region city
Urban morphology and building heating energy consumption: Evidence from Harbin, a severe cold region city
复制标题
城市形态与建筑供暖能耗——来自严寒地区城市哈尔滨的证据
DOI：
10.1016/j.enbuild.2020.110143
复制
发表时间：
2020-10-01
影响因子：
6.7
通讯作者：
Ming, Tingzhen
中科院分区：
文献类型：
--
作者：
Leng, Hong;Chen, Xi;Ming, Tingzhen
研究表明，建筑的能源需求会受到城市形态因素的显著影响。然而，很少有研究集中在严寒地区与城市形态相关的供暖能耗，这些地区的建筑由于采暖周期长而面临着更大的节能压力。本文旨在通过能量模拟和统计分析相结合的方法来填补这一认识空白。首先，以哈尔滨市73栋写字楼为研究对象，从实际能耗中减去理论能耗(TEC)，得到各建筑的理论能耗(TEC)。然后，运用回归分析方法，评价了7个城市形态因子对供暖能耗的影响。结果表明，较大的建筑用地覆盖率(BSC)、建筑面积比(FAR)、建筑高度(BH)、道路高宽比(RHR)、墙体总面积(WSA)和较低的绿地率(GSR)有利于降低采暖能耗。其中，FAR是最关键的因素，在多增加一台机组的情况下，采暖能耗最高可节省10.820千瓦时/米(2)/年。这一结果证实了节能型城市形态在提高严寒地区城市供暖能源效率和可持续性方面的重要作用。(C)2020爱思唯尔B.V.保留所有权利。
Studies have suggested that the energy demand of buildings can be significantly influenced by urban morphological factors. However, little research has focused on urban-morphology-related heating energy consumption in severe cold regions, where buildings are facing greater pressure to save energy because of long heating periods. In this paper, the aim is to fill this knowledge gap through a combination of energy simulation and statistical analysis. First, taking 73 office buildings in Harbin as the study objects, the theoretical energy consumption (TEC) is stimulated and the external influence energy consumption (EIEC) of each building is obtained by subtracting the TEC from the measured actual energy consumption. Then, using regression analysis, the effects of 7 urban morphological factors on heating energy consumption are evaluated. The results indicate that greater building site cover (BSC), floor area ratio (FAR), building height (BH), road height-width ratio (RHR), total wall surface area (WSA), and lower green space ratio (GSR) are beneficial to the reduction of heating energy consumption. Among them, FAR is the most critical factors in saving heating energy by up to 10.820 kW.h/m(2)/y, with the addition of one more unit. This result confirms the significant role that energy saving-oriented urban morphology can play in making heating energy more efficient and sustainable in severe cold region cities. (C) 2020 Elsevier B.V. All rights reserved.