煤气与热力2025，Vol.45Issue(6)：16-23,8.
PTC电热膜供暖系统间歇运行方案优化
Optimization of Intermittent Operation Scheme of PTC Electric Heating Film Heating System
摘要
Abstract
The experimental research on the character-istics of PTC electric heating film was conducted.The simulation method was used to maximize the heat stor-age capacity of the enclosure structure under the prem-ise of ensuring the heating effect,and the intermittent operation scheme of the PTC electric heating film heat-ing system was optimized by adjusting the power-on time.Power-on stage:PTC electric heating film re-sponds quickly to power on,and the heating rate is rela-tively high 60 seconds before power on.After 60 s,the heating rate decreases and gradually stabilizes.PTC electric heating film has self-limiting temperature char-acteristics.In the absence of the influence of covering,the surface temperature of the middle part of the elec-tric heating film is higher,and the surface temperature around it is lower.The heat flux density decreases lin-early with the increase of surface temperature,and the decreasing rate is larger.Power-off stage:Since the electric heating film itself has no heat storage charac-teristics,the surface temperature drops rapidly after power-off.PTC electric heating film heating system can provide a relatively comfortable thermal environment for the room.By adjusting the power-on time,the heat storage capacity of the enclosure structure is maxi-mized,and the ideal economy is obtained under the premise of ensuring the heating effect.关键词
PTC电热膜/间歇运行/电热膜供暖/方案优化Key words
PTC(positive temperature coefficient)elec-tric heating film/intermittent operation/electric heat-ing film heating/scheme optimization分类
土木建筑引用本文复制引用
吴思琦,许志鹏,张甜甜,韩东亮,谭羽非,杨悦..PTC电热膜供暖系统间歇运行方案优化[J].煤气与热力,2025,45(6):16-23,8.基金项目
黑龙江省重点研发计划"严寒地区超低能耗建筑清洁供暖及智能新风技术研究"(2022ZX01A12) （2022ZX01A12）
国家自然科学基金面上项目"中低温枯竭气藏超临界CO2取热增效机理及耦合供热系统优化机制研究"(52278099) （52278099）
