基于热气机分布式冷热电三联供效益分析

The Benefit Analysis of Combined Cooling Heating and Power System Based on Stirling Engine

以上海地区一幢典型五层住宅建筑热、电、冷负荷需求为计算基础,分别计算了基于热气机的冷热电三联供系统和传统冷热电分供系统的一次能耗率、全年净收益以及投资回收期,验证了三联供系统的节能性和经济性。分析表明热气机余热利用率和能源价格是影响该三联供系统节能效益和经济效益的主要因素。

Based on cooling load, heating load and power load of one typical five-storied house buildings in Shanghai, the investigation calculates and compares the primary energy rate, annual net revenue and payback period of a small scale trigeneration system for combined cooling, heating and power generation (CCHP) with Stirling engine against contemporary conventional separate production, showing that a CCHP system saves fuel resources and has the assurance of economic benefits. The result of analysis states that waste heat utilization ratio and energy price are the main factors that influence energy-saving benefit and economic benefit of the CCHP system.