分布式能源热电联产“以热定电”的新理解

More understanding about the principal of "determining power by heating load" in heat and power cogeneration

如果仅从热效率角度分析,分布式能源的一次能源效率甚至低于燃气冷凝锅炉。必须充分发挥分布式能源所生产的高品位电力的价值。以热定电,就是以热需求(冷热负荷)确定电力驱动热泵的电力需求,使分布式能源热电联供系统综合效率达到200%以上。为区域能源系统的优化配置提供了有效的方案。

From the point of view of heating efficiency,the primary energy efficiency of a distributed energy system is even lower than a gas power condensing boiler.Points out that the value of the power as high-grade energy produced by the distributed energy system should be fully enhanced.So called ＂determining power by heating load＂ is to determine the power demand for electric heat pump according to the heating and cooling load in order that the integrated system efficiency reaches up to 200% or more.Provides an effective option for optimized scheme of district energy systems.