CONCENTRIC TUBE HEAT EXCHANGER(plain & finned tube comparator type) To compare the performance of finned tube with plain tube heat exchanger. two heat exchangers operating Operating in parallel and are concentric tube type. Inner tube carries hot fluid and cold luid flows outside. Hot fluid is water and obtained from heaters. Cold fluid is air supplied by blower to both exchangers. one exchanger with plain inner tube & other with finned tube. Qty :