STORAGE TYPE WATER COOLER

Abstract

This paper presents the design, fabrication, and performance analysis of a storage-type water cooler system based on the vapor compression refrigeration (VCR) cycle. The purpose of the study is to provide continuous cold water supply by integrating a refrigeration unit with an insulated water storage tank. The system employs an eco-friendly R134a refrigerant, a hermetically sealed compressor, a finned-tube condenser, and an evaporator coil immersed in water for indirect cooling. The fabricated cooler has a storage capacity of 30 liters and achieves a water outlet temperature of 8°C within 45 minutes of operation. Experimental results show an average Coefficient of Performance (COP) of 3.2 and a cooling capacity of 320 W, confirming the system’s suitability for institutional and domestic applications.