Experimental Study of Effect the Load Applied and Length of Adiabatic Section on the Performance of the Wicked Horizontal Heat Pipe.
Journal Title: IOSR Journal of Mechanical and Civil Engineering (IOSR-JMCE) - Year 2018, Vol 15, Issue 2
Abstract
An experimental study is carried out to evaluate the thermal performance of wicked horizontal heat pipe (WHHP).R134-a is used as working fluid with mass 123 gram. The WHHP was made of three parts condenser, evaporator and adiabatic section. Condenser and evaporator sections were made of copper with 100 mm length, 35 mm outer diameter,24 mm inner diameter and 5.5 mm thickness wall. Adiabatic section was made of UPVC with 100 mm, 43.5 mm outer diameter, 24 mm inner diameter and 9.75 mm wall thickness.The evaporator section of the heat pipe was surrounded by heater coil representing the heat source. The condenser was jacketed with plastic cylinder to accommodate the cooling water flow. The entire WHHP was insulated. WHHPconsists of a copper and UPVC lined with a six-layer stainless steel screen mesh wick with size 100.All the experiments are accomplished and the heat pipe is at the horizontal position (θ=0o). The flow rate of cooling water changed within the range (1, 1.5 and 2) L/M, and heat power applied with range (10, 20, 30 and 40) watt, while all other conditions remained constant. The results show that the thermal resistance decreases when increase the power applied to evaporator while the overall heat coefficient of a heat pipe increased, also the deference temperature between average of evaporator and condenser was increases and the power transferred too.
Authors and Affiliations
Amer I. Ismael, Majid H. Majeed
Keywords
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- EP ID EP437805
- DOI 10.9790/1684-1502041522.
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