热泵在开发可再生能源领域的作用及其贡献率的计算方法

Role of Heat Pump Playing in Developing Renewable Energy and Contribution Rate Calculation Method

热泵是可再生能源的"开采机械",可以用一份电能或机械能,得到数倍的可再生能源,是重要的节能和环保技术。随着我国能源需求剧增和电力工业的快速发展,需要提高我国可再生能源的比例,热泵技术有着极其重要的作用。本文介绍了欧盟把热泵技术列为可再生能源的政策,进而说明了我国相应的政策。通过对我国燃煤电厂的发电效率和电网的输电效率的数据进行分析,得出热泵是获得可再生能源的一种技术。文中提出了我国热泵一次能源倍数α和可再生能源贡献率β两种计算方法供业内参考。由于电厂的烟气排放指标远比一般燃煤锅炉严格得多,用热泵代替燃煤锅炉可改善大气质量。因此本文建议把热泵可再生能源贡献率的计算方法写入国家标准,以促进我国热泵制造产业,大力推广热泵节能技术。

Heat pump can be used for renewable energy recovery. Several units of renewable energy can be obtained with the consumption of one unit of electric or mechanical energy. Therefore,heat pump is an important energy saving and environmental protection technology.With the significant increase in energy demand and rapid development of electric power industry,the proportion of renewable energy in our country needs to be improved. Thus,heat pump technology plays a critical role. Heat pump technology has been listed as renewable energy in European Union. Then,the corresponding policy for our country is proposed. Based on the data of the power generating efficiency and transmission efficiency,it is concluded that heat pump is a technology for renewable energy recovery. Two calculation methods,including primary energy multiple α and renewable energy contribution rate β,are introduced,to provide a reference for the industry. The target of flue gas emission for power plant is much more stringent than the common coal- fired boiler,so utilizing heat pump to replace coalfired boiler can improve atmosphere environment. It is suggested that the calculation method of renewable energy contribution rate for heat pump should be listed as a national standard. The heat pump manufacturing industry should be further developed,and heat pump technology should be widely applied.