[1]赵娟,周波涛,白艺飞,等.高原寒冷地区既有建筑节能改造适宜性及经济性分析[J].西安建筑科技大学学报(自然科学版),2023,55(05):774-782.[doi:10.15986/j.1006-7930.2023.05.017]
　ZHAO Juan,ZHOU Botao,BAI Yifei,et al.Suitability and economic analysis of existing building energy saving reconstruction in cold plateau region[J].J. Xi’an Univ. of Arch. & Tech.(Natural Science Edition),2023,55(05):774-782.[doi:10.15986/j.1006-7930.2023.05.017]
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高原寒冷地区既有建筑节能改造适宜性及经济性分析()
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西安建筑科技大学学报（自然科学版）[ISSN:1006-7930/CN:61-1295/TU]

卷:
55
期数:
2023年05期
页码:
774-782
栏目:
出版日期:
2023-10-28

文章信息/Info

Title:
Suitability and economic analysis of existing building energy saving reconstruction in cold plateau region
文章编号:
1006-7930(2023)05-0774-09
作者:
赵娟; 周波涛; 白艺飞; 高俊梅; 强天伟
（西安工程大学 城市规划与市政工程学院，陕西 西安 710048）
Author(s):
ZHAO Juan;  ZHOU Botao;  BAI Yifei;  GAO Junmei;  QIANG Tianwei
（School of Urban Planning and Municipal Engineering, Xi′an Polytechnic University, Xi′an 710048, China）
关键词:
既有建筑节能改造; 围护结构朝向差异; 空气源热泵; 经济性分析
Keywords:
Energy saving transformation of existing buildings;  Differences in the orientation of the envelope;  Air source heat pump;  Economic analysis
分类号:
TU243；TU111.4
DOI:
10.15986/j.1006-7930.2023.05.017
文献标志码:
A
摘要:
通过对拉萨某办公建筑室内外温度实测，发现该建筑北向房间室内温度不满足供暖要求.为寻找供暖系统问题，探究北向房间不满足要求的原因，充分考虑高海拔、强辐射等气候因素的影响，首先基于既有建筑的围护结构朝向差异化研究，提出三种节能改造方案并分别进行DeST能耗模拟.模拟结果显示，方案2改造后供暖季的总供热量比方案1减少了50-79％，方案3比方案1减少了52-50％，围护结构改造效果显著；其次进行节能性分析，对空气源热泵运行参数进行高原修正，并提出热源设计改造方案A（改造围护结构并加装电热膜）和方案B（直接更换空气源热泵），对这两种方案分别进行经济性分析.结果显示，保留原有设备的方案A比方案B初投资费用节省101.02万元，年运行费用节省0.533万元，生命周期费用节省105.38万元，是可以优先推广的既有建筑改造方式.
Abstract:
Through the actual measurement of indoor and outdoor temperatures of an office building in Lhasa, it was found that the indoor temperature of the northfacing rooms of the building did not meet the heating requirements. To find the heating system problems and explore the reasons why the north-facing rooms do not meet the requirements, the influence of climatic factors such as high altitude and strong radiation is considered. Firstly, based on the study of the differentiation of the envelope orientation of the existing building, three energy-saving retrofitting schemes are proposed and DeST energy consumption simulations are conducted separately. The simulation results show that the total heat supply in the heating season after the renovation of scheme 2 is reduced by 50-79% compared with scheme 1, and scheme 3 is reduced by 52-50% compared with scheme 1, so the effect of envelope renovation is remarkable; secondly, energy-saving analysis is conducted, the operating parameters of air source heat pump are modified in plateau, and heat source design renovation scheme A (renovation of envelope structure and addition of electric heat film) and scheme B (direct replacement of air source heat pump), and economic analysis was conducted for these two options respectively. The results show that Option A, which retains the original equipment, saves 1,010,200 CNY in initial investment costs, 5330 CNY in annual operating costs and 1,053,800 CNY in life-cycle costs compared to Option B. It is the preferred method of retrofitting existing buildings that can be promoted.

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备注/Memo

备注/Memo:
收稿日期:2022-04-28修回日期:2023-08-30
基金项目:国家自然科学基金青年资金资助项目（52208125）
第一作者:赵娟(1984—)，女，博士，副教授，主要研究可再生能源利用、太阳能供暖技术及相变蓄热技术等. E-mail: juanzhao1220@163.com
更新日期/Last Update: 2023-11-03