Analysis of carbon emissions and influencing factors of near-zero energy buildings

doi:10.12006/j.issn.1673-1719.2021.107

Abstract

Abstract:

In this study, a demonstration center of a near-zero energy building in a cold region was selected as a case to carry out the life-cycle carbon emissions accounting of the near-zero energy building. Numerical simulation method was used to select the type of building thermal insulation material, thickness of thermal insulation material, window type, window-wall area ratio, form of heating and air conditioning and building service life, and analyze the influencing factors of carbon emissions in the whole life cycle of the building. The results show that the carbon emissions in the production and transportation, construction, operation and demolition and cleaning stages of building materials account for 51.3%, 1.3%, 47.3% and 0.1%, respectively, in the whole life cycle of near-zero energy buildings. Compared with other buildings, it is found that with the improvement of building energy saving requirements, carbon emissions in the production stage of building materials account for more and more; One-third of the life cycle carbon emissions of near-zero energy buildings are about one-third of ordinary buildings, and one-third of green ones; Through the use of low-carbon environmental protection materials, insulation material thickness between 160-260 mm, window-wall area ratio between 0.1-0.2, solar+ground source heat pump energy supply mode and prolonging the service life of the building can reduce the carbon emissions in the whole life cycle of the building.

Key words: Near-zero energy building, Full life cycle assessment, Influencing factors, Carbon emissions

FENG Guo-Hui, CUI Hang, CHANG Sha-Sha, HUANG Kai-Liang, WANG Xi-Ru. Analysis of carbon emissions and influencing factors of near-zero energy buildings[J]. Climate Change Research, 2022, 18(2): 205-214.

Figures/Tables 12

Table 1 Material and thermal parameters of building envelope

Table 2 Activity data and emission factors of building materials production and transportation

Table 3 Activity data of building construction

Table 4 Activity data of building operation

Fig. 1 Ratio of carbon emissions per unit area in the whole life cycle of different researches

Fig. 2 Carbon emissions (a) and building energy consumption (b) of different thermal insulation materials in building construction

Fig. 3 Carbon emissions of different insulation thickness

Fig. 4 Carbon emissions of windows with different frame structures

Fig. 5 Carbon emissions of different glass types

Fig. 6 Energy consumption and carbon emissions change of different window wall ratio

Table 5 Operation of different energy systems

Fig. 7 Impact of building service life on carbon emissions under different phase

References 35

[1]	江亿, 胡姗. 中国建筑部门实现碳中和的路径[J]. 暖通空调, 2021, 51(5):1-13.
	Jiang Y, Hu S. The path to achieving carbon neutral in China's building sector[J]. Journal of HV/AC, 2021, 51(5):1-13 (in Chinese)
[2]	孔锋, 王一飞, 吕丽莉. 全球变化背景下中国应对气候变化的主要进展和展望[J]. 安徽农业科学, 2018, 46(1):18-23.
	Kong F, Wang Y F, Lv L L. Progress and prospects of China's response to climate change under the background of global change[J]. Journal of Anhui Agricultural Sciences, 2018, 46(1):18-23 (in Chinese)
[3]	高庆先, 高文欧, 马占云, 等. 大气污染物与温室气体减排协同效应评估方法及应用[J]. 气候变化研究进展, 2021, 17(3):268-278.
	Gao Q X, Gao W O, Ma Z Y, et al. The synergy effect assessment method and its application for air pollutants and greenhouse gases reduction[J]. Climate Change Research, 2021, 17(3):268-278 (in Chinese)
[4]	Dunster B. 走向零能耗 [M]. 北京: 中国建筑工业出版社, 2008.
	Dunster B. Toward zero energy consumption [M]. Beijing: China Building and Building Press, 2008 (in Chinese)
[5]	张时聪, 王珂, 吕燕捷, 等. 近零能耗建筑评价的研究与实践[J]. 城市建筑, 2020, 17(35):61-67.
	Zhang S C, Wang K, Lv Y J, et al. Research and practice of near zero energy building evaluation[J]. Urban Building, 2020, 17(35):61-67 (in Chinese)
[6]	张时聪, 吕燕捷, 徐伟. 64栋超低能耗建筑最佳案例控制指标和技术路径研究[J]. 建筑科学, 2020, 36(6):7-13, 135.
	Zhang S C, Lv Y J, Xu W. Study on the optimal case control index and technical path of 64 ultra-low energy buildings[J]. Architectural Science, 2020, 36(6):7-13, 135 (in Chinese)
[7]	张孟蓉, 陈莎, 李素梅. 基于生命周期的北京风味餐厅食物消费温室气体排放与减排案例分析[J]. 气候变化研究进展, 2021, 17(2):140-150.
	Zhang M R, Chen S, Li S M. A case study on greenhouse gas emission and emission reduction of food consumption in Beijing restaurant based on life cycle[J]. Climate Change Research, 2021, 17(2):140-150 (in Chinese)
[8]	徐伟, 孙德宇, 路菲, 等. 近零能耗建筑定义及指标体系研究进展[J]. 建筑科学, 2018, 34(4):1-9.
	Xu W, Sun D Y, Lu F, et al. Research progress on definition and index system of near zero energy building[J]. Architectural Science, 2018, 34(4):1-9 (in Chinese)
[9]	中华人民共和国住房和城乡建设部. 住房城乡建设部关于印发建筑节能与绿色建筑发展“十三五”规划的通知 [EB/OL]. 2017 [2021-05-01]. http://www.mohurd.gov.cn/wjfb /201703/t20170314_230978.html.
	Ministry of Housing and Urban-Rural Development of The People's Republic of China. Ministry of Housing and Urban-Rural Development on the issuance of building energy conservation and green building development notice of the 13th Five-Year Plan [EB/OL]. 2017 [2021-05-01]. http://www.mohurd.gov.cn/wjfb /201703/t20170314_230978.html (in Chinese)
[10]	阴世超. 建筑全生命周期碳排放核算分析[D]. 哈尔滨: 哈尔滨工业大学, 2012.
	Yin S C. Accounting analysis of carbon emissions in the whole life cycle of buildings[D]. Harbin: Harbin Institute of Technology, 2012 (in Chinese)
[11]	董凯红. 南方大型综合体建筑全寿命期碳排放计算研究[D]. 广州: 华南理工大学, 2018.
	Dong K H. Study on carbon emission calculation of the whole life cycle of large complex buildings in South China[D]. Guangzhou: South China University of Technology, 2018 (in Chinese)
[12]	熊宝玉. 住宅建筑全生命周期碳排放量测算研究[D]. 深圳: 深圳大学, 2015.
	Xiong B Y. Research on the measurement of carbon emissions in the whole life cycle of residential buildings[D]. Shenzhen: Shenzhen University, 2015 (in Chinese)
[13]	高靖恺. 基于BIM技术的公共建筑生命周期碳排放计量研究[D]. 太原: 太原理工大学, 2016.
	Gao J K. Research on BIM based lifecycle carbon emission measurement of public buildings[D]. Taiyuan: Taiyuan University of Technology, 2016 (in Chinese)
[14]	郑俊巍. 低碳建筑评价指标体系分析研究[D]. 成都: 西南石油大学, 2012.
	Zheng J W. Analysis and research on low carbon building evaluation index system[D]. Chengdu: Southwest Petroleum University, 2012 (in Chinese)
[15]	杨晓静. 西部地区城镇太阳能住宅全生命周期碳排放研究[D]. 西安: 西安建筑科技大学, 2020.
	Yang X J. Study on the whole-life cycle carbon emission of urban solar housing in western China[D]. Xi'an: Xi'an University of Architecture and Technology, 2020 (in Chinese)
[16]	刘剑. 基于案例分析的低碳建筑特征及其实施策略研究[J]. 建筑节能, 2020, 48(2):39-42, 57.
	Liu J. Study on the characteristics and implementation strategies of low-carbon buildings based on case analysis[J]. Building Energy Conservation, 2020, 48(2):39-42, 57 (in Chinese)
[17]	窦宝月. 近零能耗居住建筑能耗影响因素及预测模型研究[D]. 沈阳: 沈阳建筑大学, 2018.
	Dou B Y. Study on influencing factors and prediction model of energy consumption of near zero energy residential buildings[D]. Shenyang: Shenyang Jianzhu University, 2018 (in Chinese)
[18]	张峻. 被动式住宅不同屋顶构造的碳排放比较研究[D]. 青岛: 青岛理工大学, 2015.
	Zhang J. Comparative study on carbon emissions of different roof structures of passive house[D]. Qingdao: Qingdao University of Technology, 2015 (in Chinese)
[19]	龚先政, 王志宏, 高峰. 不同结构建筑生命周期能耗和温室气体排放研究[J]. 住宅产业, 2012 (5):51-54.
	Gong X Z, Wang Z H, Gao F. Research on energy consumption and greenhouse gas emission in life cycle of buildings with different structures[J]. Housing Industry, 2012 (5):51-54 (in Chinese)
[20]	杨馨. 基于建筑全生命周期碳排放的某生态工程改良实证研究[D]. 广州: 华南理工大学, 2017.
	Yang X. Empirical study on the improvement of an ecological engineering based on the carbon emission of building life cycle[D]. Guangzhou: South China University of Technology, 2017 (in Chinese)
[21]	胡姗, 张洋, 燕达, 等. 中国建筑领域能耗与碳排放的界定与核算[J]. 建筑科学, 2020, 36(S2):288-297.
	Hu S, Zhang Y, Yan D, et al. Definition and modelling of energy consumption and carbon emissions in China's building sector[J]. Building Science, 2020, 36(S2):288-297 (in Chinese)
[22]	王上. 典型住宅建筑全生命周期碳排放计算模型及案例研究[D]. 成都: 西南交通大学, 2014.
	Wang S. A calculation model and case study of typical residential buildings' life-cycle carbon emissions[D]. Chengdu: Southwest Jiaotong University, 2014 (in Chinese)
[23]	尚春静, 张智慧. 建筑生命周期碳排放核算[J]. 工程管理学报, 2010, 24(1):7-12.
	Shang C J, Zhang Z H. Building life cycle carbon emission accounting[J]. Journal of Construction Management, 2010, 24(1):7-12 (in Chinese)
[24]	黄丽君. 建筑全生命周期碳排放测算研究[J]. 城市建设理论研究, 2018 (21):7.
	Huang L J. Research on the measurement of carbon emissions in the whole life cycle of buildings[J]. Urban Construction Theory Research, 2018 (21):7 (in Chinese)
[25]	罗智星. 建筑生命周期二氧化碳排放计算方法与减排策略研究[D]. 西安: 西安建筑科技大学, 2016.
	Luo Z X. Study on calculation method and emission reduction strategy of building life cycle carbon dioxide[D]. Xi'an: Xi'an University of Architecture and Technology, 2016 (in Chinese)
[26]	张秀敏, 吴朝晖. 建筑物碳排放核算方法探析[J]. 工业技术经济, 2019, 38(10):31-40.
	Zhang X M, Wu Z H. A study of carbon emission accounting method of buildings[J]. Journal of Industrial Technological Economics, 2019, 38(10):31-40 (in Chinese)
[27]	李金潞. 寒冷地区城市住宅全生命周期碳排放测算及减碳策略研究[D]. 西安: 西安建筑科技大学, 2019.
	Li J L. Measurement of whole-life cycle carbon emissions of urban residential buildings in cold regions and research on carbon reduction strategies[D]. Xi'an: Xi'an University of Architecture and Technology, 2019 (in Chinese)
[28]	崔朋飞. 基于全生命周期碳排放测算的建筑业分阶段减排策略研究[D]. 太原: 太原理工大学, 2019.
	Cui P F. Study on phased emission reduction strategy of construction industry based on life-cycle carbon emission measurement[D]. Taiyuan: Taiyuan University of Technology, 2019 (in Chinese)
[29]	马康维. 寒冷地区办公建筑全生命周期碳排放测算及减碳策略研究[D]. 西安: 西安建筑科技大学, 2019.
	Ma K W. Carbon emission calculation and carbon reduction strategy of office buildings in cold areas[D]. Xi'an: Xi'an University of Architecture and Technology, 2019 (in Chinese)
[30]	李奇芫. 基于BIM的小型零能耗建筑生命周期环境影响和成本分析[D]. 天津: 天津大学, 2017.
	Li Q Y. Environmental impact and cost analysis of small zero energy building life cycle based on BIM[D]. Tianjin: Tianjin University, 2017 (in Chinese)
[31]	郭而郛, 崔雅楠, 王瀛, 等. 绿色居住建筑全生命周期碳排放研究[J]. 中国建材科技, 2017, 26(5):9-12.
	Guo E M, Cui Y N, Wang Y, et al. Research on carbon emission of green residential buildings in the whole life cycle[J]. China Building Materials Technology, 2017, 26(5):9-12 (in Chinese)
[32]	赵玉清, 侯向阳, 唐胜世, 等. 基于全寿命期的近零能耗建筑经济性与碳排放量分析[J]. 建筑节能, 2020, 48(8):126-130.
	Zhao Y Q, Hou X Y, Tang S S, et al. Analysis of the economy and carbon emission of near-zero energy building based on the whole life cycle[J]. Building Energy Conservation, 2020, 48(8):126-130 (in Chinese)
[33]	申娟娟. 基于LCA的建筑碳足迹测算及减排对策研究[D]. 广州: 广东工业大学, 2019, 5:123-124.
	Shen J J. Research on building carbon footprint based on LCA and the countermeasures of emission reduction[D]. Guangzhou: Guangdong University of Technology, 2019, 5:123-124 (in Chinese)
[34]	王卓然. 寒区住宅外墙保温体系生命周期CO₂排放性能研究与优化[D]. 哈尔滨: 哈尔滨工业大学, 2010.
	Wang Z R. Study on CO₂ emission performance of external wall thermal insulation system in cold region[D]. Harbin: Harbin Institute of Technology, 2010 (in Chinese)
[35]	张昕怡. 低碳建筑全生命周期碳排放影响因素分析[J]. 住宅与房地产, 2018 (33):255.
	Zhang X Y. Analysis of influencing factors of carbon emission in the whole life cycle of low-carbon buildings[J]. Housing and Real Estate, 2018 (33):255 (in Chinese)