Proceedings of The 2nd International Conference on Research in Science, Engineering and Technology
Measurement of Heat Output of a Loop Heat Pipe with Radiation Heating
Peter Hrabovský, Zuzana Kolková, Zuzana Florková, Mgr. Gabriela Belava and Andrea Dávidiková
The paper focuses on the ways of heat transfer due to the phase-phase change from liquid to gaseous and vice versa. Described herein are heat transfer devices through a heat pipe and methods for transferring heat from a heat source to a point of consumption. A heat pipe is a device described in the literature as a material with more than 100 times higher thermal conductivity than copper. A heat pipe is an energy-efficient device without the need for an electrically powered element (circulation pump). The aim of this experiment is to construct a loop heat pipe device. Construction of the cooling circuit and ensuring sufficient cooling capacity by external cooling sources. Construction of a heating circuit in the form of a heat source and its regulation of heat output. Another objective is to measure the input and output parameters of the device and to calculate the resulting heat output of the loop heat pipe. The device itself is a cooling system for the removal of generated or waste heat from technological elements such as: electrical transformers, biomass and fossil fuel combustion processes, cooling of high-performance computer workstations, etc. Another objective is to select a suitable heat transfer medium. The right choice guarantees the optimal use of the loop heat pipe device in the optimum temperature working environment while minimizing the formation of non-condensable gases generated by the chemical reactions of the loop heat pipe material itself and the heat transfer medium. This selection greatly affects the cooling performance of the device.
Keywords: : condensation; conductivity; evaporation; heat transfer; non-condensable gas.