Performance Evaluation of a Solar Air Heater System Based on Heat Transfer Enhancement and Friction Loss Characteristics
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Abstract
Solar air heater is a widely used renewable heat generation system for heating applications but due to poor heat transfer characteristics of the system, the thermal efficiency is restricted. The primary objective of the present research is to investigate the performance of solar Air Heater system using the heat transfer characteristics and friction loss for different solar air heater systems were selected from secondary source. They show that with artificial roughness techniques, the thermal performance is enhanced with increase in turbulence but the extent of friction loss and pressure drop becomes more. The study highlights the need for maintaining the balance between the thermal enhancement and the thermo-hydraulic performance to design efficient system.
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