TY - JOUR
T1 - Thermal performance of screen mesh wick heat pipes with nanofluids
AU - Putra, Nandy Setiadi Djaya
AU - Septiadi, Wayan Nata
AU - Rahman, Haolia
AU - Irwansyah, Ridho
N1 - Funding Information:
The author would like to thank the DRPM Universitas Indonesia for funding this research.
PY - 2012/7
Y1 - 2012/7
N2 - Heat pipes have been widely used as one of the alternative methods to absorb more heat in the cooling systems of electronic devices. To improve the thermal performance of heat pipes, the practice of using various combinations of heat pipes and nanofluids has been widely observed. The purpose of this research was to determine the concentrations and the types of nanofluids that can best enhance the thermal performance of screen mesh wick heat pipes and to determine the effect of coatings on the structure of the screen mesh wick after using nanofluids as the working fluid. In this research, screen mesh wick heat pipes were manufactured and tested to determine the thermal resistance of nanofluids such as Al 2O 3-water, Al 2O 3-ethylene glycol, TiO 2-water, TiO 2-ethylene glycol and ZnO-ethylene glycol charged in the screen mesh wick heat pipes. The concentration of the nanoparticles was varied from 1% to 5% of the volume of the base fluid. The screen mesh wick heat pipe with the best performance was that which used Al 2O 3-water nanofluid with 5% volume concentration. Using nanofluids in the heat pipes resulted in the formation of a thin coating on the screen mesh surface from the element of the nanoparticles. However, the thin coating promotes good capillary structure. The higher thermal performance of heat pipes charged with nanofluids proved the potential of nanofluids as a substitute for conventional working fluids. This finding makes nanofluids attractive as working fluids in screen mesh wick heat pipes.
AB - Heat pipes have been widely used as one of the alternative methods to absorb more heat in the cooling systems of electronic devices. To improve the thermal performance of heat pipes, the practice of using various combinations of heat pipes and nanofluids has been widely observed. The purpose of this research was to determine the concentrations and the types of nanofluids that can best enhance the thermal performance of screen mesh wick heat pipes and to determine the effect of coatings on the structure of the screen mesh wick after using nanofluids as the working fluid. In this research, screen mesh wick heat pipes were manufactured and tested to determine the thermal resistance of nanofluids such as Al 2O 3-water, Al 2O 3-ethylene glycol, TiO 2-water, TiO 2-ethylene glycol and ZnO-ethylene glycol charged in the screen mesh wick heat pipes. The concentration of the nanoparticles was varied from 1% to 5% of the volume of the base fluid. The screen mesh wick heat pipe with the best performance was that which used Al 2O 3-water nanofluid with 5% volume concentration. Using nanofluids in the heat pipes resulted in the formation of a thin coating on the screen mesh surface from the element of the nanoparticles. However, the thin coating promotes good capillary structure. The higher thermal performance of heat pipes charged with nanofluids proved the potential of nanofluids as a substitute for conventional working fluids. This finding makes nanofluids attractive as working fluids in screen mesh wick heat pipes.
KW - Heat pipe
KW - Nanofluid
KW - Screen mesh
KW - Sintered powder
UR - http://www.scopus.com/inward/record.url?scp=84860359927&partnerID=8YFLogxK
U2 - 10.1016/j.expthermflusci.2012.01.007
DO - 10.1016/j.expthermflusci.2012.01.007
M3 - Article
AN - SCOPUS:84860359927
SN - 0894-1777
VL - 40
SP - 10
EP - 17
JO - Experimental Thermal and Fluid Science
JF - Experimental Thermal and Fluid Science
ER -