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Quick transportation of the latent heat during the boiling leads to efficient application of this process in various heat transfer equipments. Boiling heat transfer coefficient is one of the most affecting parameters on the amount of transferred energy by boiling process. Recently, nanofluids have been widely applied for improving the performance of boiling process. Despite the large amount of experimental studies on the pool boiling heat transfer coefficient (PBHTC) of nanofluids, there’s developed no accurate mathematical/empirical approaches for estimating this parameter up to now. Since the Al₂O₃ nanoparticle is a safe material, can be simply produced in large scale, and its dispersion in base fluids often have an excellent stability, alumina-based nanofluids have received high attention in various thermal processes. Therefore, in this study, pool boiling heat transfer coefficient of water-alumina nanofluid is tried to be …