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Enhancing Split-Type Air Conditioning System Efficiency through CLOHP Integration
Author(s)
Date Issued
January 29, 2026
Type
Article
Abstract
This study investigates the impact of integrating looped oscillating thermosyphon heat pipes (CLOHPs) in a 3.52 kW (12,000 BTU/hr) split-type air conditioning system. The CLOHP uses water as the working fluid and R-134a for sensible heat exchange, with the goal of reducing refrigerant temperature before reaching the capillary tube, improving system efficiency. Performance tests were conducted at ambient temperatures of 294.2K, 296.2K, 298.2K and 300.2K. Results showed up to a 15.84% improvement in evaporation rate (Qevap), 16.37% in coefficient of performance (COP), and 16.13% in energy recovery rate (ERR), with higher effectiveness at higher temperatures. These findings demonstrate the potential of CLOHPs in enhancing energy efficiency and thermal performance in air conditioning systems, offering a promising solution for energy savings in residential and commercial applications.
Citation
Journal of Research and Applications in Mechanical Engineering, 14(1), 1-8, 2026