Pulsating heat pipe (PHP) is a new, promising yet ambiguous technology for effective heat transfer of microelectronic devices where heat is carried by the vapor plugs and liquid slugs of the working fluid. The aim of this research paper is to better understand the operation of PHP through experimental investigations and obtain comparative results for different parameters. A series of experiments are conducted on a closed loop PHP (CLPHP) with 8 loops made of copper capillary tube of 2 mm inner diameter. Ethanol is taken as the working fluid. The operating characteristics are studied for the variation of heat input, filling ratio (FR) and orientation. The filling ratios are 40%, 50%, 60% and 70% based on its total volume. The orientations are 0° (vertical), 30°, 45° and 60°. The results clearly demonstrate the effect of filling ratio and inclination angle on the performance, operational stability and heat transfer capability of ethanol as working fluid of CLPHP. Important insight of the operational characteristics of CLPHP is obtained and optimum performance of CLPHP using ethanol is thus identified. Ethanol works best at 50-60%FR at wide range of heat inputs. At very low heat inputs, 40%FR can be used for attaining a good performance. Filling ratio below 40%FR is not suitable for using in CLPHP as it gives a low performance. The optimum performance of the device can be obtained at vertical position.
Skip Nav Destination
,
,
,
,
Article navigation
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
Effect of filling ratio and orientation on the thermal performance of closed loop pulsating heat pipe using ethanol
Md. Lutfor Rahman;
Md. Lutfor Rahman
1
Military Institute of Science and Technology
, Mirpur Cantonment, Dhaka-1216, Bangladesh
Search for other works by this author on:
Mehrin Chowdhury;
Mehrin Chowdhury
a)
1
Military Institute of Science and Technology
, Mirpur Cantonment, Dhaka-1216, Bangladesh
Search for other works by this author on:
Nawshad Arslan Islam;
Nawshad Arslan Islam
b)
1
Military Institute of Science and Technology
, Mirpur Cantonment, Dhaka-1216, Bangladesh
Search for other works by this author on:
Sayed Muhammad Mufti;
Sayed Muhammad Mufti
1
Military Institute of Science and Technology
, Mirpur Cantonment, Dhaka-1216, Bangladesh
Search for other works by this author on:
Mohammad Ali
Mohammad Ali
2
Bangladesh Universities of Engineering and Technology
, Dhaka-1000, Bangladesh
Search for other works by this author on:
Md. Lutfor Rahman
1
Mehrin Chowdhury
1,a)
Nawshad Arslan Islam
1,b)
Sayed Muhammad Mufti
1
Mohammad Ali
2
1
Military Institute of Science and Technology
, Mirpur Cantonment, Dhaka-1216, Bangladesh
2
Bangladesh Universities of Engineering and Technology
, Dhaka-1000, Bangladesh
AIP Conf. Proc. 1754, 050011 (2016)
Citation
Md. Lutfor Rahman, Mehrin Chowdhury, Nawshad Arslan Islam, Sayed Muhammad Mufti, Mohammad Ali; Effect of filling ratio and orientation on the thermal performance of closed loop pulsating heat pipe using ethanol. AIP Conf. Proc. 12 July 2016; 1754 (1): 050011. https://doi.org/10.1063/1.4958402
Download citation file:
Pay-Per-View Access
$40.00
Sign In
You could not be signed in. Please check your credentials and make sure you have an active account and try again.
Citing articles via
Inkjet- and flextrail-printing of silicon polymer-based inks for local passivating contacts
Zohreh Kiaee, Andreas Lösel, et al.
The implementation of reflective assessment using Gibbs’ reflective cycle in assessing students’ writing skill
Lala Nurlatifah, Pupung Purnawarman, et al.
Effect of coupling agent type on the self-cleaning and anti-reflective behaviour of advance nanocoating for PV panels application
Taha Tareq Mohammed, Hadia Kadhim Judran, et al.
Related Content
An experimental study on the performance of closed loop pulsating heat pipe (CLPHP) with methanol as a working fluid
AIP Conf. Proc. (July 2016)
Effect of using ethanol and methanol on thermal performance of a closed loop pulsating heat pipe (CLPHP) with different filling ratios
AIP Conf. Proc. (July 2016)
Experimental investigation on thermal performance of a closed loop pulsating heat pipe (CLPHP) using methanol and distilled water at different filling ratios
AIP Conf. Proc. (July 2016)
Thermal performance comparison of closed loop pulsating heat pipe with DI water and Al2O3/DI nanofluid
AIP Conf. Proc. (January 2024)
Thermodynamic analysis and visualization of closed loop pulsating heat pipe
AIP Conf. Proc. (January 2022)