“EXPERIMENTAL AND NUMERICAL INVESTIGATION TO THE EFFECT OF EGG SHELL NANOPARTICLES ON THE PERFORMANCE OF DOUBLE PIPE HEAT EXCHANGER”. THE IRAQI JOURNAL FOR MECHANICAL AND MATERIALS ENGINEERING, vol. 19, no. 3, Sept. 2019, p. 17, https://doi.org/10.32852/iqjfmme.v19i3.372.