Thermal control is an important topic for thermal management of small electrical and electronic devices. Closed loop pulsating heat pipe (CLPHP) arises as the best solution for thermal control. The aim of this experimental study is to search a CLPHP of better thermal performance for cooling different electrical and electronic devices. In this experiment, methanol is used as working fluid. The effect of using methanol as a working fluid is studied on thermal performance in different filling ratios and angles of inclination. A copper capillary tube is used where the inner diameter is 2mm,outer diameter is 2.5mm and 250mm long. The CLPHP has 8 loops where the evaporation section is 50mm, adiabatic section is 120mm and condensation section is 80mm. The experiment is done using FR of 40%-70% with 10% of interval and angles of inclination 0° (vertical), 30°, 45°, 60° varying heat input. The results are compared on the basis of evaporator temperature, condenser temperature and their differences, thermal resistance, heat transfer co-efficient, power input and pulsating time. The results demonstrate the effect of methanol in different filling ratios and angles of inclination. M ethanol shows better performance at 30° inclination with 40% FR.
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12 July 2016
INTERNATIONAL CONFERENCE ON MECHANICAL ENGINEERING: Proceedings of the 11th International Conference on Mechanical Engineering (ICME 2015)
18–20 December 2015
Dhaka, Bangladesh
Research Article|
July 12 2016
An experimental study on the performance of closed loop pulsating heat pipe (CLPHP) with methanol as a working fluid
Md. Lutfor Rahman;
Md. Lutfor Rahman
1
Military Institute of Science and Technology, Mirpur Cantonment
, Dhaka -1216, Bangladesh
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Farah Nazifa Nourin;
Farah Nazifa Nourin
a)
1
Military Institute of Science and Technology, Mirpur Cantonment
, Dhaka -1216, Bangladesh
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Zaimaa Salsabil;
Zaimaa Salsabil
1
Military Institute of Science and Technology, Mirpur Cantonment
, Dhaka -1216, Bangladesh
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Nusrat Yasmin;
Nusrat Yasmin
b)
1
Military Institute of Science and Technology, Mirpur Cantonment
, Dhaka -1216, Bangladesh
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Mohammad Ali
Mohammad Ali
2
Bangladesh University of Engineering and Technology
, Dhaka -1000, Bangladesh
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a)
Corresponding author: farahnazifanourin@gmail.com
AIP Conf. Proc. 1754, 050012 (2016)
Citation
Md. Lutfor Rahman, Farah Nazifa Nourin, Zaimaa Salsabil, Nusrat Yasmin, Mohammad Ali; An experimental study on the performance of closed loop pulsating heat pipe (CLPHP) with methanol as a working fluid. AIP Conf. Proc. 12 July 2016; 1754 (1): 050012. https://doi.org/10.1063/1.4958403
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