Thermal efficiency of heat pipe with alumina nanofluid

Tun Ping Teng; How Gao Hsu; Huai En Mo; Chien Chih Chen

doi:10.1016/j.jallcom.2010.02.046

Thermal efficiency of heat pipe with alumina nanofluid

Tun Ping Teng^*, How Gao Hsu, Huai En Mo, Chien Chih Chen

^*Corresponding author for this work

Undergraduate Program of Vehicle and Energy Engineering

Research output: Contribution to journal › Article › peer-review

67 Citations (Scopus)

Abstract

The study presents the enhancement of thermal efficiency of heat pipe charged with nanofluid. The Al₂O₃/water nanofluid produced by direct synthesis method is used as the working fluid of experimental heat pipes with three different concentrations (0.5, 1.0 and 3.0 wt.%). The heat pipe is a straight copper tube with inner diameter and length of 8 and 600 mm, respectively. The heat pipes charged with distilled water and nanofluids are tested, respectively. The study discusses about the effects of charge amount of working fluid, tilt angle of heat pipe and weight fraction of nanoparticles on the thermal efficiency of heat pipe. According to the experimental results, the optimum condition of heat pipe is when nanoparticles being at 1.0 wt.%. Under this condition, the thermal efficiency is 16.8%, which is higher than that of heat pipe charged with distilled water. The charge amount can be decreased from 60% to 20%.

Original language	English
Pages (from-to)	S380-S384
Journal	Journal of Alloys and Compounds
Volume	504
Issue number	SUPPL. 1
DOIs	https://doi.org/10.1016/j.jallcom.2010.02.046
Publication status	Published - 2010 Aug

Keywords

Heat conduction
Nanostructured materials
Thermodynamic properties

ASJC Scopus subject areas

Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

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10.1016/j.jallcom.2010.02.046

Cite this

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title = "Thermal efficiency of heat pipe with alumina nanofluid",

abstract = "The study presents the enhancement of thermal efficiency of heat pipe charged with nanofluid. The Al2O3/water nanofluid produced by direct synthesis method is used as the working fluid of experimental heat pipes with three different concentrations (0.5, 1.0 and 3.0 wt.%). The heat pipe is a straight copper tube with inner diameter and length of 8 and 600 mm, respectively. The heat pipes charged with distilled water and nanofluids are tested, respectively. The study discusses about the effects of charge amount of working fluid, tilt angle of heat pipe and weight fraction of nanoparticles on the thermal efficiency of heat pipe. According to the experimental results, the optimum condition of heat pipe is when nanoparticles being at 1.0 wt.%. Under this condition, the thermal efficiency is 16.8%, which is higher than that of heat pipe charged with distilled water. The charge amount can be decreased from 60% to 20%.",

keywords = "Heat conduction, Nanostructured materials, Thermodynamic properties",

author = "Teng, {Tun Ping} and Hsu, {How Gao} and Mo, {Huai En} and Chen, {Chien Chih}",

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T1 - Thermal efficiency of heat pipe with alumina nanofluid

AU - Teng, Tun Ping

AU - Hsu, How Gao

AU - Mo, Huai En

AU - Chen, Chien Chih

PY - 2010/8

Y1 - 2010/8

N2 - The study presents the enhancement of thermal efficiency of heat pipe charged with nanofluid. The Al2O3/water nanofluid produced by direct synthesis method is used as the working fluid of experimental heat pipes with three different concentrations (0.5, 1.0 and 3.0 wt.%). The heat pipe is a straight copper tube with inner diameter and length of 8 and 600 mm, respectively. The heat pipes charged with distilled water and nanofluids are tested, respectively. The study discusses about the effects of charge amount of working fluid, tilt angle of heat pipe and weight fraction of nanoparticles on the thermal efficiency of heat pipe. According to the experimental results, the optimum condition of heat pipe is when nanoparticles being at 1.0 wt.%. Under this condition, the thermal efficiency is 16.8%, which is higher than that of heat pipe charged with distilled water. The charge amount can be decreased from 60% to 20%.

AB - The study presents the enhancement of thermal efficiency of heat pipe charged with nanofluid. The Al2O3/water nanofluid produced by direct synthesis method is used as the working fluid of experimental heat pipes with three different concentrations (0.5, 1.0 and 3.0 wt.%). The heat pipe is a straight copper tube with inner diameter and length of 8 and 600 mm, respectively. The heat pipes charged with distilled water and nanofluids are tested, respectively. The study discusses about the effects of charge amount of working fluid, tilt angle of heat pipe and weight fraction of nanoparticles on the thermal efficiency of heat pipe. According to the experimental results, the optimum condition of heat pipe is when nanoparticles being at 1.0 wt.%. Under this condition, the thermal efficiency is 16.8%, which is higher than that of heat pipe charged with distilled water. The charge amount can be decreased from 60% to 20%.

KW - Heat conduction

KW - Nanostructured materials

KW - Thermodynamic properties

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ER -

Thermal efficiency of heat pipe with alumina nanofluid

Abstract

Keywords

ASJC Scopus subject areas

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