A. Hussain, A. ., & S. Golam, A. . (2016). EXPERIMENTAL AND NUMERICAL STUDY OF THE HEAT TRANSFER COEFFICIENTS OF DOUBLE PIPE HELICALLY COILED HEAT EXCHANGER. Journal of Engineering and Sustainable Development, 20(6), 81-102. https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/700