• Onkar Ashtul
• Kiran Surywanshi
• Gaurav More
• Mujib Shaikh

In this paper, the performance of double pipe heat exchanger was studied experimentally with counter flow arrangement along with nanofluids TIO2 and CNT. These nanoparticles were mixed along with base fluid water in concentrations 0.25%,0.5%,1.0% for 40 litres of water. The fluid was passed through corrugated copper tubes instead of plain copper tubes in order to increase the heat transfer rate . The enhanced performance of heat exchanger is due to high value of thermo physical properties of fluid when dispersing nanoparticles in the base fluid and the swirl motion created by the corrugated copper tubes in the heat exchanger. This reduces the time required for the heat transfer, and thereby increasing the productivity and reducing the operating costs, wherever applied. Heat exchanger have vast applications in various industrial fields such as Thermal power plant, Nuclear power plant, Petroleum industry, Chemical industry, Food industry, etc.

Nanofluids (TIO2 and CNT), Thermal conductivity, Double Pipe Heat Exchanger, Corrugated Tubes.

"Experimental investigation of corrugated copper tube double pipe heat exchanger using TiO2 and CNT Nano fluids", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.9, Issue 8, page no.143-148, August-2022, Available :http://www.jetir.org/papers/JETIRFP06024.pdf

"Experimental investigation of corrugated copper tube double pipe heat exchanger using TiO2 and CNT Nano fluids", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.9, Issue 8, page no. pp143-148, August-2022, Available at : http://www.jetir.org/papers/JETIRFP06024.pdf