International Journal of Materials Chemistry and Physics
Articles Information
International Journal of Materials Chemistry and Physics, Vol.6, No.4, Dec. 2020, Pub. Date: Jan. 22, 2021
Laboratory Evaluation of thermal Performance of Injection of Nanofluid and Normal Fluid into a Heat Pipe with the Aim of Optimizing Process Energy
Pages: 49-54 Views: 539 Downloads: 129
[01] Alireza Taghipour, Department of Chemical Engineering, Firoozabad Branch, Islamic Azad University, Firoozabad, Iran.
[02] Farshad Farahbod, Department of Chemical Engineering, Firoozabad Branch, Islamic Azad University, Firoozabad, Iran.
In this research, nano-operating fluids and ordinary fluids have been used. In principle, the temperature profile and thermal resistance when using different fluids have been studied in laboratory. The experiments are conducted to measure and compare temperature and thermal resistance of pure water, metal oxide nano fluid, ammonia, methanol and ethanol which fills heat pipes. The temperature values are measured in different length of heat pipe. In addition, the temperature profiles are obtained in different power. The experiments are conducted for pure water and non-pure solutions with variable concentrations that are between 0.1 mili gram per litre to 100 mili gram per litre. Also, the concentration of 50ppm nano particles is the effective amount of metal oxide and keeps the pipe wall temperatures in the optimum values. The experiments show the higher power cause to the higher convective heat transfer and the lower temperature profile, ultimately. More details are achieved in the following results. So, the experimental results show the temperature interval for methanol is 21.24 to 23.56 centigrade degree. In addition, the temperature interval for ethanol is 11.01 to 12.34 centigrade degree and average difference between the temperature profile for methanol and ethanol is 47.08%, approximately. Finally, laboratory results show that the thermal properties of the nanofluid have been significantly improved. Therefore, a high heat transfer coefficient can be expected if the nanoparticles are well distributed in the fluid.
Water, Thermal Resistance, Heat Pipe, Thermal Profile, Operating Fluid, Nano
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