“EXPERIMENTAL STUDY OF HEAT TRANFER AUGMENTATION USING AIR BUBBLE INJECTION AND (Al2O3 WATER) NANOFLUID FLOW IN DOUBLE PIPE HEAT EXCHANGERS”. 2021. THE IRAQI JOURNAL FOR MECHANICAL AND MATERIALS ENGINEERING 21 (2): 96-117. https://doi.org/10.32852/iqjfmme.v21i2.546.