Analysis of photovoltaic thermoelectric air conditioning for personalized cooling in arid climate

This study addresses the challenge of developing energy-efficient cooling solutions for arid climates through the experimentation of a solar photovoltaic (PV) powered thermoelectric cooler (TEC), known as a photo thermoelectric air conditioning (PTE-AC) system. The research aims to offer a sustainable alternative to traditional air conditioning systems, particularly in hot, arid regions like Dhahran, Saudi Arabia. The methodology involves fabricating and evaluating the PTE-AC system, which operates exclusively on solar PV power to create distinct hot and cold chambers for personalized cooling. Experimental results reveal that the PTE-AC system reaches its peak performance at an electrical input of 6 A and 5V, achieving a maximum coefficient of performance (COP) of 0.498 and a cooling capacity of 54.8 W. The system's ability to produce condensate varied, with average outputs of 11.7 g/h, 13.8 g/h, and 16.4 g/h recorded under power settings of 4 A, 5 A, and 6 A respectively. In operational conditions, the system maintained an ambient temperature range around the occupants between 22.1 degree celsius and 29.2 degree celsius, with an average of 24.5 degree celsius, at the optimal input setting of 6 A and 5 V. The research contributes significantly to the field by presenting a Freon-free, low-carbon dioxide, and energy-efficient cooling solution, demonstrating a practical application of solar-powered thermoelectric technology in building engineering. The novelty of this study lies in the approach to leveraging solar energy for efficient personal cooling, offering a viable and sustainable alternative to conventional air conditioning in arid climates.