Pull-Down Characteristics and Sustainable Cooling Performance of an Eco-Friendly R600a Vapour Compression Refrigeration System Using Graphene Oxide Nanolubricant . injoere [Internet]. 2026 Jun. 18 [cited 2026 Jun. 19];6(S3):87-9. Available from: https://injoere.com/index.php/injoere/article/view/734