生活热水供应局部热源型式的环境评价

Environmental Assessment of the Local Heat Source Types of Domestic Hot Water Supply

目的分析我国北方地区用于生活热水供应的局部热源运行时对大气环境的影响,为生活热水供应技术的发展提供参考.方法以沈阳地区为例采用模糊综合评价的方法,考虑多种对大气环境质量有影响的因素,对燃气热水器,电热水器、太阳能热水器这三种局部生活热水供应系统的热源方案进行分析,计算各方案的污染物排放量,确定评价指标并建立评语集对空气环境质量标准进行等级划分.结果户式电热水供应系统对大气环境的污染最严重,户式太阳能热水供应系统对环境的影响最小.结论在研究的燃气、电能、太阳能三种局部热水供应系统中,太阳能作为制备热水的热源既节能又环保,生活热水应尽量采用太阳能这种较为清洁的能源形式.但在寒冷地区使用时常常需要辅助能源.

The paper aims to analyze the impact on atmospheric environment in the northern region of China when running living hot water supply of local heat, and providing direction for the ＇work development of life hot water supply. By taking Shenyang area as an example, the research considers variety influenced factors of atmospheric environmental quality using fuzzy comprehensive evaluation method, analyzes the heat source scheme of three local life hot water supply systems of gas water heater, electric water heater, and solar ener- gy water heater, calculates the pollutants of each scheme, determines the evaluation index and establishes comments on air environmental quality standard set for hierarchies.