1 23 Iranian Journal of Science and Technology, Transactions of Mechanical Engineering ISSN 2228-6187 Volume 43 Number 1 Iran J Sci Technol Trans Mech Eng (2019) 43:103-112 DOI 10.1007/s40997-017-0110-4 Theoretical Investigation of Energy-Saving Potential of Eco-Friendly R430A, R440A and R450A Refrigerants in a Domestic Refrigerator Bukola Olalekan Bolaji, Ademola Ezra Adeleke, Michael Rotimi Adu, Mabel Usunobun Olanipekun & Emmanuel Akinnibosun