Abstract A pulsation heat pipe is an efficient used in many engineering applications. This study aims to test the effect of working fluids on thermal performance pipe. Seven turned pipes were designed and manufactured from a copper with 3.5 mm inner diameter. The lengths evaporation part, adiabatic passage, condenser part 300 , 210 respectively. In this study, three different as fluid: distille...

This study presents a design method to fabricate a novel hybrid-structure flat plate heat pipe (NHSP heat pipe) for a concentrator photovoltaic. The NHSP heat pipe is composed of a flattened copper pipe and a sintered wick structure, and a coronary-stent-like rhombic copper mesh supports the structure. The coronary-stent-like supporting structure enhances the mechanical strength and shortens th...

The effect of pulsation on the heat transfer rates, for turbulent water stream with upstream pulsation of different amplitudes, in a double-pipe heat exchanger for both parallel and counter flows, with cold water on the shell side, was investigated. Pulsation frequencies, with using a reciprocating device, ranged up to 260 cycles per minute (up to 4.3 Hz) and 5 different displacement amplitudes...