Thermo-Hydraulic Performance of Horizontal Circumferentially Ribbed Double Pipe Heat Exchanger. J. eng. sustain. dev. [انترنت]. 1 مايو، 2014 [وثق 18 مايو، 2024];18(3):183-96. موجود في: https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/916