热泵供热系统的(火用)评价方法

目前建筑耗能以基数大、能量品质低、节能潜力大等特点受到全社会的普遍关注。热泵余热回收技术是建筑节能技术中较为突出的一种,各种形式的热泵系统越来越多地被应用于建筑供热。然而,热泵是典型的以高品质能量来换取低品质能量的设备,在注意到热泵技术在能的数量上具有节能优势的同时,也必须注意到该技术在能量品质利用方面的特点,才能为热泵技术的正确应用提供理论依据。本文以压缩式热泵供热系统为例,论述了热泵供热系统的分析方法,通过具体计算可知,热泵技术不仅在热能利用率上具有优势,在能量品质利用方面也是合理的,以热泵供热取代传统的锅炉或加热炉供热可以取得巨大的节能效益和环保效益。本文的研究结论为进一步促进热泵技术的推广应用提供了理论依据。

Study on Exergy Evaluation Methods of Heat Pump Heating System

At present,building energy consumption attracted more concern because of its large cardinal number,low energy quality and great potential for saving.For all the building energy-saving technologies,waste heat recovery heat pump was the prominent one.Various forms of heat pump system were increasingly applied for building heating.However,heat pump was a piece of typical equipment which obtained low-quality energy by utilizing high-quality energy.In order to provide accurate theoretical foundation for heat pum...