Experiment Study on Improved Closed Loop Pulsating Heat Pipe with Silver/Water Nanofluid

Wei Xiu Shi; Wei Yi Li; Li Sheng Pan

doi:10.4028/www.scientific.net/AMR.732-733.462

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 732-733Experiment Study on Improved Closed Loop Pulsating...

Experiment Study on Improved Closed Loop Pulsating Heat Pipe with Silver/Water Nanofluid

Abstract:

Start up and heat transfer performances of improved closed loop pulsating heat pipe (ICLPHP) charged with water and silver/water nanofluid, respectively, were investigated experimentally with angles of 90° and 60°. Both the average evaporator wall temperature and the overall thermal resistance of the ICLPHP with different working fluids and at the volume filling ratio of 35% were tested and compared. Experimental results showed that nanofluid caused different thermal performances of ICLPHP. Within the experiment range, silver/water nanofluid can improve operation stability and heat transfer limit and reduce starting power compared with water. With high heating power, thermal resistance of nanofluid was lower than that of water. With inclination of 60°, ICLPHP with nanofluid operated better and reduced sensitivity of inclination.

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Periodical:

Advanced Materials Research (Volumes 732-733)

Pages:

462-466

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.732-733.462

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Online since:

August 2013

Authors:

Wei Xiu Shi, Wei Yi Li, Li Sheng Pan

Keywords:

Heat Transfer, Improved Closed Loop, Nanofluid, Operation Stability, Pulsating Heat Pipe, Start up

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