An experimental study of a new Solar Air Heater with a Linear Fresnel Reflector

Karoua, H.; Debbache, Mohammed; Takilalte, Abdelatif; Mahfoud, Omar; Moummi, Abdelhafid; Moummi, Noureddine; Aoues, Kamel

doi:10.1109/irsec.2016.7983949

Cited by 3 publications

(1 citation statement)

References 8 publications

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“…This collector was destined for medium range temperature applications with easy integration onto building roofs, and they confirmed by numerical model results of an experimental study. Furthermore, many researches carried out on flat plate collectors and studied the role of artificial roughening on the thermal performance of these types of solar collectors [34][35][36][37][38][39].…”

Section: Introductionmentioning

confidence: 99%

Experimental investigation and exergy analysis of an air heater with a solar concentrator used for drying processes

Karoua¹,

Moummi²,

Hamidat³

et al. 2018

IJHT

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In this paper, a solar air heater collector is developed and investigated. A concentrating feature of Linear Fresnel Reflector and the characteristics of flat plate air heaters (LFRAH) collectors are used. In this experimental study, three configurations of the absorber used to improve the thermal performance of LFRAH for the drying and the space heating processes, where two configurations of the absorber plate have different types of artificial roughness and the third configuration has a smooth absorber. The measured parameters are the ambient temperature, inlet and outlet temperatures of the air heater, the temperatures of the absorber, and the solar radiation intensity. The measurements performed at the same values of mass flow rate, 0.018 (kg.s -1 ). The introduction of the artificial roughness at the absorber plate allows having average air temperatures greater than 100° C. The comparison of the thermal efficiency shows that the roughened absorbers improve the thermal efficiency by 62% compared to the smooth absorber.

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Section: Introductionmentioning

confidence: 99%

Experimental investigation and exergy analysis of an air heater with a solar concentrator used for drying processes

Karoua¹,

Moummi²,

Hamidat³

et al. 2018

IJHT

Self Cite

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Modeling and Performance Estimation of 153 MWe Parabolic Trough Power Plant in Djamaa Algeria

Karoua,

Laissaoui,

Bouhallassa

et al. 2023

2023 14th International Renewable Energy Congress (IREC)

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Sustainable Energy Progress via Integration of Thermal Energy Storage and Other Performance Enhancement Strategies in FPCs: A Synergistic Review

Pathak,

Tazmeen,

Chopra

et al. 2023

Sustainability

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Flat plate collectors (FPCs) are the leading solar thermal technology for low-medium range temperature applications. However, their expansion in developing countries is still lacking because of their poor thermal performance. Improving the thermal performance of flat plate collectors (FPCs) is a crucial concern addressed in this review This study comprehensively discussed the performance improvement methods of FPCs, such as design modification, reflectors, working fluid, and energy storage materials, by covering current issues and future recommendations. Design factors such as coating and glass cover thickness, thickness of absorber plate and material, air gap between the glass cover and absorber plate, and riser spacing, along with insulation materials, are examined for their impact on FPC performance. Absorber design changes with selective coatings for improving the heat transmission rate between the working fluid and absorber are critical for enhancing collectors’ thermal output. The nanofluids utilization improved FPC’s thermal performance in terms of energetic and exergetic outcomes in the 20–30% range. Moreover, adding a heat storage unit extends the operating hours and thermal output fluctuations of FPCs. Research suggests that employing turbulators and nanofluids as heat transfer fluids are particularly effective for enhancing heat transfer in FPCs. This comprehensive review serves as a critical tool for evaluating and comparing various heat transfer augmentation techniques, aiding in the selection of the most suitable option.

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An experimental study of a new Solar Air Heater with a Linear Fresnel Reflector

Cited by 3 publications

References 8 publications

Experimental investigation and exergy analysis of an air heater with a solar concentrator used for drying processes

Experimental investigation and exergy analysis of an air heater with a solar concentrator used for drying processes

Modeling and Performance Estimation of 153 MWe Parabolic Trough Power Plant in Djamaa Algeria

Sustainable Energy Progress via Integration of Thermal Energy Storage and Other Performance Enhancement Strategies in FPCs: A Synergistic Review

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