Investigative study of the thermal performance of a trial solar air heater

Mzad, Hocine; Bey, K.; Khelif, Rabia

doi:10.1016/j.csite.2018.100373

Cited by 31 publications

(9 citation statements)

References 23 publications

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“…It is concluded that external wind imparts great impact on the flow pattern and heat transfer in the SAH Channel. Mzad et al (2019) found out that the assessment pertaining to the thermal efficacy of solar air collectors with regards to the correct design as well as dimensions of the collector for a provided application. The acquired outcomes highlight optimum collector orientations as well as tilts for amount of time of the season.…”

Section: Frontiers In Heat and Mass Transfermentioning

confidence: 99%

A Comprehensive Review of Performance Analysis of With and Without Fins Solar Thermal Collector

Kumar¹,

Kumar²,

Thakur³

et al. 2021

Frontiers in Heat and Mass Transfer

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Solar thermal collector is a simple, economic, and environment friendly equipment which is used to utilize solar energy for various agriculture and industrial applications. The investigators mainly focus on the improvement of the thermal performance by providing various fins shapes underside of the absorber plate in the single pass and double pass solar thermal collector. This work discusses the influence of different shaped fins used by various researchers in improving the thermal performance of thermal collectors. Fin's design, geometries used, and their influence on turbulence and thermal performance have also been discussed. As per the literature review and comparative study the heat transfer rate is greater for solar air thermal collector with fins as compared to solar air thermal collector without fins.

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Section: Frontiers In Heat and Mass Transfermentioning

confidence: 99%

A Comprehensive Review of Performance Analysis of With and Without Fins Solar Thermal Collector

Kumar¹,

Kumar²,

Thakur³

et al. 2021

Frontiers in Heat and Mass Transfer

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“…Mzad et al 10,11 studied the efficiency and useful energy of double-glazed solar collectors as a function of noontime radiation on typical days in Oran and Annaba, two cities in the western and eastern parts of Algeria. The collector tilt and azimuthal orientation were varied in a wide range to obtain optimized angles, giving maximum efficiency and useful energy.…”

Section: Introductionmentioning

confidence: 99%

On the effect of the transversal aspect ratio on the double‐glazed solar air heater performance

Mzad

Bennour

2023

Heat Trans

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The transversal aspect ratio of solar air heaters (SAHs) is a critical geometric parameter that influences the heat transfer from the absorber plate to the working fluid and, accordingly, the overall heat loss level. The present work addresses the effect of the aspect ratio on the performance of a solar air heating system and the behavior of heat transfer coefficients (HTCs) within it and along the flow channel. A mathematical model of energy‐balance equations was formulated to examine and analyze the double‐glazed solar air heater thermal behavior. The Eismann correlation, which is more accurate than Holland's correlation, was employed to determine the HTC between the two glass covers. The useful energy, Nusselt number (Nu), efficiency, overall loss, and HTCs as a function of the aspect ratio were evaluated across the collector length. On the basis of the findings, the higher the ratio, the better the efficiency of the SAH. Indeed, increasing the collector's cross‐sectional aspect ratio (r) up to 19 increases useful energy efficiency by more than 87%, Nu by 84%, thermohydraulic efficiency from 0.4 to 0.76, and overall heat loss by 1.15 W/(m2 K). Furthermore, reducing r from 19 to 2 will improve the collector power from 1.855 to 3.473 kW.

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“…Nowzari et al 31 found that the collector had the most noteworthy assortment effectiveness when the collector angle was 28.4 . Mzad et al 32 hypothetically and experimentally concentrated on improving a preliminary solar air heater execution for different tilts, glazing and protection materials. The outcome showed that the collector execution relied upon a few parameters, such as the absorber, glass spread and safety materials.…”

Section: Introductionmentioning

confidence: 99%

Performance analysis of domestic solar air heating system using V-shaped baffles – An experimental study

Rajendran¹,

Ramasubbu²,

Karthick

et al. 2021

Proceedings of the Institution of Mechanical Engineers, Part E:

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An experimental study has been carried out to enhance a solar air heater’s performance by integrating artificial roughness through baffles on the absorber plate. In this paper, the thermal and energy matrices analysis of a Solar Air Heater (SAH) roughened with V up perforated baffles have been investigated. The effect of various mass flow rates on the SAH was analyzed with and without baffles. Experimental outputs like outlet air temperature, useful energy (heat) gain and thermal efficiency were evaluated to confirm the performance improvement. The baffled absorber plate SAH was found to give the maximum thermal efficiency and useful energy gain of 89.3% and 1321.37 W at a mass flow rate of 0.0346 kg/s, 13% and 12% higher than SAH without baffle. This result showed that the V up-shaped ribs in flow arrangement provide better thermal performance than smooth plate SAH for the parameter investigated. Energy matrices analysis and carbon dioxide mitigation of the SAH system were also analyzed.

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Investigative study of the thermal performance of a trial solar air heater

Cited by 31 publications

References 23 publications

A Comprehensive Review of Performance Analysis of With and Without Fins Solar Thermal Collector

A Comprehensive Review of Performance Analysis of With and Without Fins Solar Thermal Collector

On the effect of the transversal aspect ratio on the double‐glazed solar air heater performance

Performance analysis of domestic solar air heating system using V-shaped baffles – An experimental study

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