Baheta, Aklilu Tesfamichael and Oumer, A. N. and Hailegiorgis, Sintayehu M. (2018) Analysing the Thermal Performance of Heat Pipe Using Copper Nanofluids. Journal of Advanced Research in Fluid Mechanics and Thermal Sciences, 45 (1). pp. 149-155. ISSN 2289-7879. (Published)
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Abstract
Heat pipes are heat transfer device that do not need externa l power; as a result, they are used in various thermal systems. Enhancing the performance of heat transfer device is a continues effort. Thus, this study investigates the effect of copper nanofluid on the thermal performance of cylindrical heat pipe (HP) that has screen mesh wick for heat transfer applications. The copper HP consists of 350 mm length and 12.7 mm outside diameter. To investigate its thermal performance mathematical model is developed. Demineralized water based 20 nm copper n anofluids with 0 to 4% particle concentrations were considered in the study. Simulation was done at 100 W heat input and results showed that when the particle concentra tion increases the evaporator wall temperature drops. At 4% particle concentration nanofluid the HP thermal resistance reduced by 17.5% compared to when the HP uses demineralized water. Furthermore, for a given particle concentration as the heat input increases the temperature change between the evaporator and the condenser increases. The outcome of the investigation can be input to the design of solar heat exchangers that use HPs filled with nanofluids.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Heat pipe, copper nanofluids, thermal performance, particles concentration. |
| Subjects: | T Technology > TJ Mechanical engineering and machinery |
| Faculty/Division: | Faculty of Mechanical Engineering |
| Depositing User: | Noorul Farina Arifin |
| Date Deposited: | 07 Nov 2018 08:32 |
| Last Modified: | 07 Nov 2018 08:32 |
| URI: | http://umpir.ump.edu.my/id/eprint/22578 |
| Download Statistic: | View Download Statistics |
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