Comprehensive analysis of energy saving index and economic benefit of low carbon heating technology

doi:10.16085/j.issn.1000-6613.2021-0187

Abstract

Abstract:

Based on the urgent needs of energy resources and environmental protection, combined with the severe situation of heating problems in northern China, it is necessary to further explore the sustainable development of clean heating technology. The selection of clean heating technology and heating source should also be considered according to the comprehensive factors such as resource situation, environmental protection, energy efficiency and cost, and determined after technical and economic analysis and comparison. Therefore, taking a heating project in northern China as an example, based on the new clean energy heating methods such as electric energy heating, natural gas heating and heat pump heating, this paper introduces the principle of each distributed central heating technology, analyzes the advantages and disadvantages of each clean heating technology, and uses a specific example to analyze the technical scheme of the heating area combined with the evaluation indexes such as cost, service life and primary energy consumption The comprehensive analysis of economy and energy saving is carried out to develop low-carbon economy and promote sustainable development, so as to provide some reference for the selection of heating mode in northern China.

Key words: clean heating, air source heat pump, phase change thermal storage electric heating, low valley power, economic analysis

摘要：

基于能源资源与环境保护的迫切需求，结合北方采暖问题面临的严峻形势，当前需进一步探索可持续发展的清洁采暖技术。清洁采暖技术及采暖热源的选择，也应适时地根据资源情况、环境保护、能源效率及费用等综合因素进行考量，经技术经济分析比较后确定。故以北方地区某采暖工程为例，基于电能供热、天然气供热、热泵供热等新型清洁能源供热方式，本文介绍了各分布式集中供热技术原理，分析了各清洁采暖技术各自的优劣势对比，采用具体算例并结合成本、使用寿命及一次能源消耗等评价指标对供暖区域的技术方案进行经济性与节能性综合分析，发展低碳经济促进可持续发展，以期为北方地区供热方式的选择提供一定的参考依据。

关键词: 清洁供暖, 空气源热泵, 相变蓄热电采暖, 低谷电力, 经济性分析

CLC Number:

TK511

TANG Zhiwei, LIU Jing, SHI Ying, LU Ying, XIAO Ronghui, WANG Hao. Comprehensive analysis of energy saving index and economic benefit of low carbon heating technology[J]. Chemical Industry and Engineering Progress, 2021, 40(S1): 156-162.

唐志伟, 刘静, 石英, 陆颖, 肖荣晖, 王昊. 低碳供热技术节能指标与经济效益综合分析[J]. 化工进展, 2021, 40(S1): 156-162.

Figures/Tables 12

References 13

1	何晓红, 高新勇. 300MW机组集中供生活热水改造的技术经济性分析[J]. 节能, 2017, 36(11): 76-79.
	HE Xiaohong, GAO Xinyong. 300MW technical and economic analysis on the transformation of centralized domestic hot water supply system[J]. Energy Conservation, 2017, 36(11): 76-79.
2	李忠. 北方农村清洁供暖技术路径分析[J]. 建设科技, 2017(18):28-31.
	LI Zhong. Path analysis of clean heating technology in northern rural areas[J]. Construction of Science and Technology, 2017(18): 28-31.
3	周珏, 罗凡, 罗庚玉, 等. 高效蓄能互联热泵系统技术及应用[J]. 电力需求侧管理, 2017, 19(6): 25-28.
	ZHOU Yu, LUO Fan, LUO Gengyu, et al. Technology and application of high efficiency energy storage interconnected heat pump system[J]. Power Demand Side Management, 2017, 19(6): 25-28.
4	丁涛, 牟晨璐, 贺元康, 等. 西北地区清洁供暖政策现状与典型案例分析(二)：典型案例与经济性分析[J]. 中国电机工程学报, 2020, 40(16): 5126-5136.
	DING Tao, MOU Chenlu, HE Yuankang, et al. Clean heating policy status and typical case analysis in Northwest China(2): Typical cases and economic analysis[J]. Chinese Journal of Electrical Engineering, 2020, 40(16): 5126-5136.
5	周景宏, 王春建, 王静. 电采暖典型技术综合效益评价研究[J]. 价值工程, 2019, 38(29): 122-125.
	ZHOU Jinghong, WANG Chunjian, WANG Jing. Study on comprehensive benefit evaluation of typical electric heating technology[J]. Value Engineering, 2019, 38(29): 122-125.
6	苗常海, 白中华, 王雯, 等. 典型蓄热式电采暖项目经济性对比分析[J]. 电力需求侧管理, 2018, 20(6): 36-39.
	MIAO Changhai, BAI Zhonghua, WANG Wen, et al. Economic comparative analysis of typical regenerative electric heating projects[J]. Power Demand Side Management, 2018, 20(6): 36-39.
7	高梦竹. 天然气城市集中供热的经济性分析[J]. 现代经济信息, 2020(9): 144, 146.
	GAO Mengzhu. Economic analysis of natural gas city central heating[J]. Modern Economic Information, 2020(9): 144, 146.
8	王明, 武杰, 张承虎. 不同天然气供热方式能效比较[J]. 区域供热, 2019(5): 133-138.
	WANG Ming, WU Jie, ZHANG Chenghu. Energy efficiency comparison of different natural gas heating methods[J]. District Heating, 2019(5):133-138.
9	中华人民共和国住房和城乡建设部, 中华人民共和国国家质量监督检验检疫总局.民用建筑热工设计规范[S]. 北京: 中国建筑工业出版社, 2016.
	Ministry of Housing and Urban Rural Development of the People’‍s Republic of China, General Administration of Quality Supervision, Inspection and Quarantine of the People’‍s Republic of China, Standardization Administration of the People’‍s Republic of China.Code for thermal design of civil buildings[S]. Beijing: China Construction Industry Press, 2016.
10	张凤霞, 田贯三, 魏景源. 不同能源类型供热方式环保与经济性比较[J]. 煤气与热力, 2016, 36(10): 14-18.
	ZHANG Fengxia, TIAN Guansan, WEI Jingyuan. Comparison of environmental protection and economy of heating modes with different energy sources[J]. Gas and Heat, 2016, 36(10): 14-18.
11	郝杨洋. 北京市农村地区煤改清洁能源供热技术与政策研究[D]. 北京: 北京建筑大学, 2018.
	HAO Yangyang. Research on heating technology and policy of coal to clean energy in rural areas of Beijing[D]. Beijing: Beijing University of Civil Engineering and Architecture, 2018.
12	张群力, 李印龙, 刘宝山, 等. 低温空气源热泵供热方式在北方供暖地区的适宜性研究[J]. 建筑科学, 2015, 31(2): 140-145.
	ZHANG Qunli, LI Yinlong, LIU Baoshan, et al. Study on suitability of low temperature air source heat pump heating mode in northern heating area[J]. Architecture Science, 2015, 31(2): 140-145.
13	齐小顺, 刘文艺, 吉增其, 等. 基于费用年值法的电热固体蓄能供热系统经济性分析及评价[J]. 工业锅炉, 2017(4): 38-41.
	QI Xiaoshun, LIU Wenyi, JI Zengqi, et al. Economic analysis and evaluation of electrothermal solid energy storage heating system based on annual cost method[J]. Industrial Boiler, 2017(4): 38-41.

项目	时段	时长/h	价格
天然气	全天	24	2.75CNY·m^-3
电	峰时段（10∶00—15∶00； 18∶00—21∶00）	8	1.2884CNY·kWh^-1
	平时段（07∶00—10∶00；15∶00—18∶00；21∶00—23∶00）	8	0.7697CNY·kWh^-1
	谷时段（23∶00—07∶00）	8	0.3023CNY·kWh^-1

项目	时段	时长/h	价格
天然气	全天	24	2.75CNY·m^-3
电	峰时段（10∶00—15∶00； 18∶00—21∶00）	8	1.2884CNY·kWh^-1
	平时段（07∶00—10∶00；15∶00—18∶00；21∶00—23∶00）	8	0.7697CNY·kWh^-1
	谷时段（23∶00—07∶00）	8	0.3023CNY·kWh^-1

供热方式（分布式集中供暖）	一次能源利用率/%	单位供热面积年标准耗煤量/kg·m^-2·a^-1
直热式电锅炉	0.2979	45.01
相变蓄热电锅炉	0.3205	41.83
燃气锅炉	0.9000	14.90
空气源热泵站	0.8094	16.57
地源热泵站	1.1331	11.83

供热方式（分布式集中供暖）	一次能源利用率/%	单位供热面积年标准耗煤量/kg·m^-2·a^-1
直热式电锅炉	0.2979	45.01
相变蓄热电锅炉	0.3205	41.83
燃气锅炉	0.9000	14.90
空气源热泵站	0.8094	16.57
地源热泵站	1.1331	11.83

序号	一次能源	碳排放系数
1	煤炭	2.77kgCO₂·kg_ce^-1
2	燃气	1.88kgCO₂·m^-3