Experimental Analysis of a Capillary Pumped Loop for Terrestrial Application

摘要: This paper reports on an experimental study of a capillary pumped loop for terrestrial application (CPLTA) that has been tested using ethanol, methanol, and N-pentane as working fluids. CPLTA, designed integrated power electronics cooling in railways, is capable transferring total heat more than 5 kWwhen filled with methanol. First, experiments carried out under transient conditions show the high stability this device all tested, particularly regard to harsh rail cycle. Second, steady-state results convincingly conductance evaporator independent secondary fluid temperature, but strongly dependent nature saturation temperature at reservoir. A theoretical analysis undertaken order establish thermodynamic operating curves tests condition by calculating pressure difference between reservoir evaporator; from these onemay determine evaporation well restricted single evaporator, thereby underscoring differences Finally, confirm methanol maximally performing such devices, also useful lowest powers applied, due its lower density when compared other