Ashish yadav, Niraj Yadav, Raunak Yadav, Rajiv yadav and Maneesh Kanaujiya 2021. ANALYSIS AND FABRICATION OF AN INSTANTANEOUS WATER COOLER BY USING TERTAFLUOROETHANE AND ISOBUTANE (R134a) . International Engineering Journal For Research & Development. 6, 2 (May 2021), 7. DOI:https://doi.org/10.17605/OSF.IO/7T5V2.