Abstract
The purposes of this study are to clarify the validity of the conversion of wind power into thermal energy by using the hydraulic heating system and to consider the optimal method of this system. An oil pump was driven by a DC-motor instead of wind turbine, and the oil increased in temperature by the pressure loss of orifices mounted in a heating element connected to the hydraulic circuit. The power consumed by pressure loss, the effective heating rate, and the oil temperature increase process were measured under several different conditions, for example the number of orifice plates and the space between its plates. As the results of these investigations, it was found that this oil hydraulic heating system using the pressure loss of orifices worked well for the wind power heater.
