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风能是取之不尽、用之不竭的可再生能源。自古以来人们就以种种不同的方式利用风能,如风帆行船、风磨、风力提水以及风力发电等等。而风能转换成热能(风力致热),则是近年来才发展起来的一种高效率利用风能的新技术。根据热力学定律,由机械能转换成热能时理论效率为100％。理想风力机的转换效率将近60％,实际用的风力机效率一般仅为理想风力机的70％。通常风力机提水时的效率只有16％左右,发电时的转换效率为
Wind energy is an inexhaustible source of renewable energy. Since ancient times, people have used wind energy in different ways, such as sailing, wind mill, wind power and wind power generation. The wind energy into heat (wind-induced heat), it is developed in recent years, a high-efficiency wind energy using new technologies. According to the laws of thermodynamics, the theoretical efficiency is 100% when converting from mechanical energy to thermal energy. The ideal wind turbine conversion efficiency of nearly 60%, the actual use of wind turbine efficiency is generally only 70% of the ideal wind turbine. Usually when the wind turbine water efficiency is only about 16%, when the power conversion efficiency