Integrated Micro-CHP Systems for Residential Applications
In recent years, interest has been growing in microcombined heat and power (micro-CHP) for residential homes due to its high energy efficiency and market potential. Micro-CHP technologies that can produce thermal and electric energy at a small district, or even detached household level, are beginning to emerge. Despite certain similarities, micro-CHP systems for residences differ from conventional CHP in many aspects. Micro-CHP systems should not be designed to meet only one specific goal -electrical efficiency -but should rather be based on the residential energy needs including space and water heating, electrical power, cooling and indoor air quality and comfort. In this paper, integration of micro-CHP into residential heating/cooling systems has been explored. The structure of a micro-CHP system incorporating a heat pump (CHP/HP) was designed and examined. When integrating micro-CHP into residential heating systems, a thermal energy storage (TES) unit is required to store thermal energy and deliver it more intensively on demand, thus satisfying space and/or water heating needs. The design concept of the TES unit was proposed. The electrical and thermal efficiencies of micro-CHP/HP systems have been simulated against varying operating conditions, showing that more than 30％ primary energy savings could be achieved as compared to grid electricity plus fuel-fired heating systems.
Micro-CHP Heat pump Thermal efficiency Thermal energy storage
Kuanrong Qiu Skip Hayden
CanmetENERGY-Ottawa,Natural Resources Canada Haanel Drive,Ottawa,Ontario,Canada K1A IM1
国际会议
The 6th International Symposium on Heating,Ventilating and Air Conditioning(第六届国际暖通空调学术会议)
南京
英文
1624-1631
2009-11-06（万方平台首次上网日期，不代表论文的发表时间）