@article{oai:ir.kagoshima-u.ac.jp:00000686, author = {松村, 博久 and MATSUMURA, Hirohisa and 十田, 正文 and JUTA, Masafumi and 門, 久義 and KADO, Hisayoshi and 井手, 英夫 and IDE, Hideo}, journal = {鹿児島大学工学部研究報告, The research reports of the Faculty of Engineering, Kagoshima University}, month = {Nov}, note = {A method of hot water generation by agitating water with impeller blades loaded with wind power does not require special regulating systems. As considering energy flux of wind power, it is suitable for small and compact systems of energy conversion. The efficiency of converting wind power directly into thermal energy is reported in relation to different conditions of hot water generator, such as the diameter and the rotational frequency of impeller, the number of impeller blades and fixed vanes, the height of blade and vane, the distance between blade and vane. And also, the influence of circulating flow rate in heat exchanger at outside of hot water generator is experimented in the efficiency of conversion. The power curve of agitating water can be expressed with certain limits by the following formula: P=K・n^{2.9} where, P is power consumption and K is constants and n is the rotational frequency (rpm) divided by 100. The power curve will be characterized by a constant K.}, pages = {33--43}, title = {風力の直接熱変換に関する実験的研究(第2報)}, volume = {30}, year = {1988} }