• Krunal Jhalavadiya
• Dr. Diptesh Patel

Heat exchangers are important part of industrial applications in thermal field from long time. In that shell and tube heat exchangers are widely used in different applications like refrigeration, process industry, chemical industries etc. Due to some limitations shell and tube heat exchangers have low heat transfer rate. Various heat transfer enhancement techniques are available such as extended surfaces, fluid vibration, swirl flow device etc. Nano technology provides us a new way to use fluid with suspended nanoparticles which is known as nanofluid. In this paper, 0.1%, 0.2%, 0.3% volume concentrations of Al2O3-water and CuO-water nanofluid is used for investigation and their effect on different thermal parameters such as convective heat transfer coefficient, overall heat transfer coefficient, heat transfer rate of shell and tube heat exchanger are evaluated experimentally. Nanofluids are used as cold working fluid or cold fluid and sent in tubes of shell and tube heat exchanger. A notable increment in overall heat transfer coefficient and convective heat transfer coefficient is found in this experimental analysis. Pressure drop is more in nanofluid as compared to base fluid but not much more difference because of laminar region.

Shell and tube heat exchanger, Al203-water nanofluid, CuO-water nanofluid, Volume concentration, Heat transfer rate, Overall heat transfer coefficient, Pressure drop

"Performance Investigation Of Heat Exchanger Using Nanofluid As A Coolant ", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 4, page no.647-652, April-2019, Available :http://www.jetir.org/papers/JETIR1904G02.pdf

"Performance Investigation Of Heat Exchanger Using Nanofluid As A Coolant ", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 4, page no. pp647-652, April-2019, Available at : http://www.jetir.org/papers/JETIR1904G02.pdf