<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>In this research study, the development of a theoretical model to estimate the efficiency of a double pass solar air heater (DPSAH) was the main objective. The mathematical model was compared to experimental results and found to be in agreement, both qualitatively and quantitatively. The model used energy balance equations to determine the outlet temperature and could solve the temperature equations of each component of the heater simultaneously. A matrix inversion method was used for this purpose. The study found that increasing the Nusselt number led to an increase in energy efficiency, but also caused a drop in outlet temperature at any solar radiation. The mass flow rate (MFR), with larger flow rates resulting in better efficiencies, had a significant impact on the double pass air heater's efficiency. Thus, increasing of DPSAH’s length increases its thermal performances and reach its maximum values for L=9m. These findings could be beneficial in selecting the most efficient design parameters for DPSAH.</p>
</abstract>

In this research study, the development of a theoretical model to estimate the efficiency of a double pass solar air heater (DPSAH) was the main objective. The mathematical model was compared to experimental results and found to be in agreement, both qualitatively and quantitatively. The model used energy balance equations to determine the outlet temperature and could solve the temperature equations of each component of the heater simultaneously. A matrix inversion method was used for this purpose. The study found that increasing the Nusselt number led to an increase in energy efficiency, but also caused a drop in outlet temperature at any solar radiation. The mass flow rate (MFR), with larger flow rates resulting in better efficiencies, had a significant impact on the double pass air heater's efficiency. Thus, increasing of DPSAH’s length increases its thermal performances and reach its maximum values for L=9m. These findings could be beneficial in selecting the most efficient design parameters for DPSAH.

Thermal Performance of Double Pass Solar Air Collector: Numerical and Experimental Investigation

Univerité Kadi Merbah Ouargla, Faculté Des Hydrocarbures

Département De Forage Et Mécanique Des Chantiers Pétroliers

Laboratoire de Génie Energétique et Matériaux (LGEM)

Université de Ghardia, Faculté des Science et de la Technoogie

Département D’automatique et D’éléctomécanique

Annals of West University of Timisoara - Physics

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

In this research study, the development of a theoretical model to estimate the efficiency of a double pass solar air heater (DPSAH) was the main objective. The...

Thermal Performance of Double Pass Solar Air Collector: Numerical and Experimental Investigation

Publicado en línea: 06 dic 2023

Páginas: 124 - 143

Recibido: 01 ago 2023

Aceptado: 25 oct 2023

DOI: https://doi.org/10.2478/awutp-2023-0010

Palabras clave
Solar air heater, Double pass, Thermal performance, Experimental, Numerical

© 2023 Yousef Belloufi et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Thermal Performance of Double Pass Solar Air Collector: Numerical and Experimental Investigation

Publicado en línea: 06 dic 2023

Páginas: 124 - 143

Recibido: 01 ago 2023

Aceptado: 25 oct 2023

DOI: https://doi.org/10.2478/awutp-2023-0010

Palabras claveSolar air heater, Double pass, Thermal performance, Experimental, Numerical

© 2023 Yousef Belloufi et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Palabras clave
Solar air heater, Double pass, Thermal performance, Experimental, Numerical