• Dr. Basgonda Sonage
• D. D. Bhoge

The demand of heat exchanging devices is increasing day by day in various applications like refrigerating, automotive, power plant and process industries. The work presented here narrates to the development of substitute heat transfer fluid called ZnO-Water Nanofluid. Dispersion of solid Nano particles in a base fluid enhances thermal properties of base fluid. In this work ZnO Nano particles are manufactured by green synthesis method from Aloe Vera. Characterization and thermo physical property of ZnO are studied in this paper. The size of Nano particles is measured by X-Ray Diffraction (XRD) and shape of ZnO nanoparticles are characterized by Transition Electron Microscope (TEM). Experimental setup is developed to measure heat transfer coefficient and pressure drop for base fluid and Nano fluid. Experimentation was conducted for different flow rates of base and nanofluid. Pressure drop is measured with piezometer tube and heat transfer coefficient is calculated from energy equation and heat transfer equations. The result indicates that 2.5% to 5.6% pressure drop between Base Fluid and Nano Fluid. There is enhancement in heat transfer coefficient from 6 to 9.5% for the Reynolds number ranging from 3100 to 3800.

nanofluid,nanofluid,heat transfer ,green synthesis

"Heat transfer and pressure drop study in transition regime for ZnO-H2O nanofluid synthesized by green route", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.9, Issue 5, page no.j72-j79, May-2022, Available :http://www.jetir.org/papers/JETIR2205A12.pdf

"Heat transfer and pressure drop study in transition regime for ZnO-H2O nanofluid synthesized by green route", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.9, Issue 5, page no. ppj72-j79, May-2022, Available at : http://www.jetir.org/papers/JETIR2205A12.pdf