Adnan SözenH. İbrahim VariyenliM. Bahadır ÖzdemirMetin Gürüİpek AytaçAytaç, İpek2024-07-092024-07-092016-0810.1016/j.joei.2015.02.012https://acikarsiv.thk.edu.tr/handle/123456789/1679Heat transfer enhancement using alumina and fly ash nanofluids in parallel and cross-flow concentric tube heat exchangersjournal-article