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Title: An experimental study on the performance of closed loop pulsating heat pipe (CLPHP) with methanol as a working fluid

Abstract

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 2 mm,outer diameter is 2.5 mm and 250 mm long. The CLPHP has 8 loops where the evaporation section is 50 mm, adiabatic section is 120 mm and condensation section is 80 mm. 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%more » FR.« less

Authors:
; ; ;  [1];  [2]
  1. Military Institute of Science and Technology, Mirpur Cantonment, Dhaka -1216 (Bangladesh)
  2. Bangladesh University of Engineering and Technology, Dhaka -1000 (Bangladesh)
Publication Date:
OSTI Identifier:
22608556
Resource Type:
Journal Article
Journal Name:
AIP Conference Proceedings
Additional Journal Information:
Journal Volume: 1754; Journal Issue: 1; Conference: ICME 2015: 11. international conference on mechanical engineering, Dhaka (Bangladesh), 18-20 Dec 2015; Other Information: (c) 2016 Author(s); Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0094-243X
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; CAPILLARIES; COMPUTERIZED SIMULATION; COOLING; COPPER; ETHANOL; HEAT; HEAT EXCHANGERS; HEAT TRANSFER; METHANOL; WORKING FLUIDS

Citation Formats

Rahman, Md. Lutfor, Nourin, Farah Nazifa, E-mail: farahnazifanourin@gmail.com, Salsabil, Zaimaa, Yasmin, Nusrat, E-mail: nusratyasmin015@gmail.com, and Ali, Mohammad. An experimental study on the performance of closed loop pulsating heat pipe (CLPHP) with methanol as a working fluid. United States: N. p., 2016. Web. doi:10.1063/1.4958403.
Rahman, Md. Lutfor, Nourin, Farah Nazifa, E-mail: farahnazifanourin@gmail.com, Salsabil, Zaimaa, Yasmin, Nusrat, E-mail: nusratyasmin015@gmail.com, & Ali, Mohammad. An experimental study on the performance of closed loop pulsating heat pipe (CLPHP) with methanol as a working fluid. United States. doi:10.1063/1.4958403.
Rahman, Md. Lutfor, Nourin, Farah Nazifa, E-mail: farahnazifanourin@gmail.com, Salsabil, Zaimaa, Yasmin, Nusrat, E-mail: nusratyasmin015@gmail.com, and Ali, Mohammad. Tue . "An experimental study on the performance of closed loop pulsating heat pipe (CLPHP) with methanol as a working fluid". United States. doi:10.1063/1.4958403.
@article{osti_22608556,
title = {An experimental study on the performance of closed loop pulsating heat pipe (CLPHP) with methanol as a working fluid},
author = {Rahman, Md. Lutfor and Nourin, Farah Nazifa, E-mail: farahnazifanourin@gmail.com and Salsabil, Zaimaa and Yasmin, Nusrat, E-mail: nusratyasmin015@gmail.com and Ali, Mohammad},
abstractNote = {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 2 mm,outer diameter is 2.5 mm and 250 mm long. The CLPHP has 8 loops where the evaporation section is 50 mm, adiabatic section is 120 mm and condensation section is 80 mm. 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.},
doi = {10.1063/1.4958403},
journal = {AIP Conference Proceedings},
issn = {0094-243X},
number = 1,
volume = 1754,
place = {United States},
year = {2016},
month = {7}
}