Thermal performance investigation of double pass-finned plate solar air heater

El-Sebaii, A.A.; Aboul-Enein, S.; Ramadan, M.R.I.; Shalaby, S.M.; Moharram, B.M.

doi:10.1016/j.apenergy.2010.11.017

Cited by 195 publications

(69 citation statements)

References 30 publications

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“…Further, it was noted, after observing over a period of three months, that the solar transmittance of polymethyl methacrylate decreases. The experimental results of El-sebaii et al [5] indicated that using finned plate improves the thermal efficiency of double-pass v-corrugated plate GUC by 9.3-11.9% compared to the double-pass finned plate GUC.…”

Section: Introductionmentioning

confidence: 99%

Experimental Study of the Slit Spacing and Bed Height on the Thermal Performance of Slit-Glazed Solar Air Heater

Mousavi

Egelioğlu

2017

International Journal of Photoenergy

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The thermal performances of three slit-glazed solar air heaters (SGSAHs) were investigated experimentally. Three SGSAHs with different bed heights (7 cm, 5 cm, and 3 cm) were fabricated with multiple glass panes used for glazing. The length, width, and thickness of each pane were 154 cm, 6 cm, and 0.4 cm, respectively. Ambient air was continuously withdrawn through the gaps between the glass panes by fans. The experiments were conducted for four different gap distances between the glass panes (0.5 mm, 1 mm, 2 mm, and 3 mm) and the air mass flow rate was varied between 0.014 kg/s and 0.057 kg/s. The effects of air mass flux on the outlet temperature and thermal efficiency were studied. For the SGSAH with bed height of 7 cm and glass pane gap distance of 0.5 mm, the highest efficiency was obtained as 82% at a mass flow rate of 0.057 kg/s and the air temperature difference between the inlet and the outlet (ΔT) was maximum (27°C) when the mass flow rate was least. The results demonstrate that for lower mass flow rates and larger gaps, the performance of SGSAH with a bed height of 3 cm was better compared to that of others. However, for higher mass flow rates, the SGSAH with 7 cm bed height performed better.

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Section: Introductionmentioning

confidence: 99%

Experimental Study of the Slit Spacing and Bed Height on the Thermal Performance of Slit-Glazed Solar Air Heater

Mousavi

Egelioğlu

2017

International Journal of Photoenergy

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“…Omojaro and Abdabbagh (2010) reports the performance of double pass solar collector as 7 to 19% higher compared to single pass solar collector. According to El-sebaii et al (2011b), double duct solar collector gave 7 to 9% performance increase when compared to single pass. Moreover, Chamoli et al (2012) outlines the performance of double pass solar collector as 10 to 15% more compared to single pass.…”

Section: Influence Of Air Flow Patternsmentioning

confidence: 99%

Experimental analysis of air flow patterns in perfomance of flat plate solar collectors

Ramadhani¹,

Minja²,

Njau³

2015

Afr. J. Agric. Res.

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Solar drying is one of the promising methods of reducing post-harvest losses in rural areas. Studies have shown that, heat transfer mechanisms in a solar collector influences the performance of solar dryers. This study aims at improving heat transfer in flat plate solar collectors by designing different air flow patterns inside the collector. Three flat plate solar collectors were constructed by using Pterocarpus timber (Mninga) and tested for their effect in heat transfer at various flow patterns. Three different flow patterns namely: single duct front pass, double duct parallel flow and double duct counter flow were designed and tested. Experimental results show that collector efficiency of single duct front pass, double duct front pass and double duct counter flow were 30.6, 36.1 and 38.2% respectively. It was found that, double duct flow gives improved performance compared to single duct flow due to the increased heat transfer area. In additional, double duct counter flow showed superior performance compared to double duct parallel flow due to extended heat transfer area and the advantage of air preheating at the inlet which reduces heat losses through glazing. Through this study, it was concluded that, solar collector designs with double duct counter flow can improve collector performance for up to 8.3% compared to single duct front pass.

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“…A.A.El-Sebaii et. al [3] investigated thermal performance investigation of double pass-finned plate solar air heater. Finned plates and v-corrugated plates were used for the experiments and the results were compared.…”

Section: Literature Review Bmramani Et Almentioning

confidence: 99%

Experimental Investigation of Double Pass Solar Air Heater Using Multiple Aluminium Obstructions

2016

IJAERD

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Thermal performance investigation of double pass-finned plate solar air heater

Cited by 195 publications

References 30 publications

Experimental Study of the Slit Spacing and Bed Height on the Thermal Performance of Slit-Glazed Solar Air Heater

Experimental Study of the Slit Spacing and Bed Height on the Thermal Performance of Slit-Glazed Solar Air Heater

Experimental analysis of air flow patterns in perfomance of flat plate solar collectors

Experimental Investigation of Double Pass Solar Air Heater Using Multiple Aluminium Obstructions

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