空气源热泵集中供暖系统调节理论分析
Theoretical analysis on regulating modes of air source heat pump system for central heating
汪保利 1林木森 2李天普 3Tuomas Laine 4倪龙2
作者信息
- 1. 中铁四院集团西南勘察设计有限公司;哈尔滨工业大学建筑学院;寒地城乡人居环境科学与技术工业和信息化部重点实验室
- 2. 哈尔滨工业大学建筑学院;寒地城乡人居环境科学与技术工业和信息化部重点实验室
- 3. 山东福德新能源设备有限公司
- 4. 沁沅信息技术有限公司
- 折叠
摘要
空气源热泵已广泛应用于华北等地区的集中供暖,但目前鲜有关于其调节方式的研究.为了提升空气源热泵的节能效果,本文建立空气源热泵集中供暖系统的数学模型,该模型考虑结除霜损失和启停损失,基于该模型提出3种适合于空气源热泵的调节方式,应用该模型对北京等7个城市的集中供暖系统进行研究.结果表明,结除霜损失修正和启停损失修正均对机组的耗电量及季节性能系数(SCOP)产生重要影响:结除霜损失修正使机组的耗电量增大3.85％～17.41％,SCOP降低3.72％～14.83％,启停损失修正的影响会随着供暖面积的增大逐渐降低;采用不同调节方式时,机组的耗电量变化不大,水泵节能80.97％～86.46％,系统节能 8.47％～11.87％.
Abstract
Air source heat pump(ASHP)has been widely used in Northern China for central heating.However,there is few research on its regulating modes till now.To im-prove the energy-saving effect of AHSP,a simulation model considering the energy loss caused by frosting/defrosting and on-off,is developed.Based on this model,three regula-ting modes suitable for ASHP are proposed.Then the central heating systems in Beijing and six other cities are investigated using this model.The results show that both the ener-gy loss corrections of frosting/defrosting and on-off have evident impacts on the power consumption and seasonal coefficient of performance(SCOP);the power consumption of unit is increased by 3.85％-17.41％,and SCOP of unit is decreased by 3.72％-14.83％caused by frosting/defrosting correction.The influence of the energy loss caused by on-off decreases gradually with the increase of heating area.Using different regulating modes,power consumption of ASHP unit changes slightly,while the energy-saving rate of water pump could reach 80.97％-86.46％,and the energy-saving rate of system could reach 8.47％-11.87％.
关键词
空气源热泵/集中供暖/结除霜损失修正/启停损失修正/调节Key words
air source heat pump/central heating/energy loss correction of frosting/defrosting/energy loss correction of on-off/regulating引用本文复制引用
出版年
2024
NETL
NSTL
万方数据