基于间歇供暖的沈阳市某小学空气源热泵供暖系统热源设计
Heat source design of air-source heat pump heating system for aprimary school in Shenyang based on intermittent heating
摘要：
以沈阳地区某新建小学校园为例,通过进行全年能耗模拟和负荷计算,确定了小学校园全年运行的热负荷特性。利用最小二乘法获得某厂家空气源热泵性能参数与室外温度和供水温度的关系函数,并以此为基础对比分析了空气源热泵分别与电锅炉、燃气锅炉联合运行的全生命周期总费用和年碳排放量。分析表明,采用间歇供暖方式的沈阳市中小学可采用双级压缩空气源热泵和燃气锅炉辅助热源联合运行的方案,可按计算热负荷的51.5%配备空气源热泵机组,按计算热负荷的48.5%配置燃气锅炉辅助热源。
Abstract：
This paper takes a newly built primary school campus in Shenyang area as an example. By conducting annual energy consumption simulation and load calculation, the heating load characteristics of the primary school campus throughout the year are determined. The least squares method is used to obtain the relationship function between the performance parameters of an air-source heat pump from a certain manufacturer and the outdoor temperature and water supply temperature. Based on this, a comparative analysis is conducted on the total life cycle cost and annual carbon emissions of the air-source heat pump operating in combination with an electric boiler and a gas boiler, respectively. The analysis shows that primary and secondary schools in Shenyang that adopt intermittent heating methods can adopt a scheme combining the operation of a two-stage compression air-source heat pump and a gas boiler as an auxiliary heat source. The air-source heat pump unit can be equipped according to 51.5% of the calculated heating load, and the gas boiler auxiliary heat source can be equipped according to 48.5% of the calculated heating load.
Keywords:heating; air-source heat pump; auxiliary heat source; intermittent heating; primary and secondary schools