Nhut L, Danh T. An experimental investigation on the coefficient of performance of the small hot water heat pump using refrigeration R410A and R32. VNUHCM Journal of Engineering and Technology [Internet]. 6Sep.2020 [cited 3Jul.2024];3(2):425-31. Available from: https://stdjet.scienceandtechnology.com.vn/index.php/stdjet/article/view/676