EXPLORING THE HEAT TRANSFER PERFORMANCE OF CYLINDRICAL HEAT PIPES WITH VARIED MOLAR Ag-DOPED GO HYBRID NANOFLUIDS - AN EMPIRICAL STUDY

Abstract

In our modern era of technological advancements, the widespread use of high-powered electronic and electrical devices has resulted in the release of excessive heat, posing a threat to the environment. To address this issue, heat pipes have emerged as a promising solution for effective heat removal. As researchers strive to improve their performance, various approaches have been explored. This study took a unique approach by investigating the performance of miniature cylindrical copper sintered heat pipes using different molar concentrations (0.03 M, 0.06 M, and 0.09 M) of Ag-doped GO hybrid nanofluids, with a weight percentage of 0.05 wt.% as the working fluid. The study carefully assessed the heat transport capabilities of these nanofluids within the heat pipe, considering a range of heat inputs (10-130 W) in the evaporator section and different mass flow rates (8.33 g/s, 16.66 g/s, and 25 g/s) of the cooling fluid in the condenser section. The findings revealed that the 0.09-M Ag-GO nanofluid demonstrated superior performance, with a remarkable 50.48% reduction in thermal resistance and a significant 27.52% improvement in wall temperature distribution, particularly at a mass flow rate of 16.66 g/s and a heat input of 100 W. It reveals that altering the molarity of nanoparticles in hybrid nanofluids has the potential to enhance the heat transport abilities of heat pipes.