Vijayaragavan, Balasubramanian, Suyambu Pandian Asok, and Chandrasekar Ramalekshmi Shakthi Ganesh. 2023. “Heat Transfer Characteristics of Double Pipe Heat Exchanger Having Externally Enhanced Inner Pipe”. Acta Polytechnica 63 (1): 65-74. https://doi.org/10.14311/AP.2023.63.0065.