Recycle Effect on Device Performance of Wire Mesh Packed Double-Pass Solar Air Heaters

Ho, Chii‐Dong; Lin, Chunsheng; Yang, Tz-Jin; Chao, Chun-Chieh

doi:10.3390/en7117568

Cited by 3 publications

(2 citation statements)

References 32 publications

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“…Mahmood et al [99] constructed SPSAH and DPSAH with black colour 4 different transverse fins (Figure 8), with 16 wire meshing between these fins, The optimum thermal efficiency (η th ) achieved with the 75 mm collector was 62.50% for DPSAH and 55% for SPSAH and temperature difference (ΔT) was inversional proportional to air mass flow rate. Ho et al [100][101] analysed (Figure 9) mathematically and experimentally the recycling effects on DPSAH performance with wire mesh packing and observed significant improvements in η th as compared to smooth SPSAH and DPSAH running under similar working condition. El-Sebaii et.…”

Section: Recent Development and Approaches Used To Determine The Perf...mentioning

confidence: 99%

Double Pass Solar Air Heater: A Review

Singh¹,

Meena²,

Kumar³

2022

IJERA

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Improvement in heat transfer rate and effectiveness of a solar air heater is always a matter of concern in the scientific community. Different steps have been taken to improve it, including the application of artificial roughness, double glazing, colour coating, and multi-pass flow. In this article, a detailed assessment of the efficiency and effectiveness of a solar air heater has been conducted by applying various types of double-pass arrangements. The effects of various methods applied so far are deeply analysed and discussed to create a better understanding. Future opportunities, challenges, and concerns are also addressed, with a fruitful conclusion in the last. Keywords: Solar energy, solar air heater, double-pass, artificial roughness, thermal performance

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Section: Recent Development and Approaches Used To Determine The Perf...mentioning

confidence: 99%

Double Pass Solar Air Heater: A Review

Singh¹,

Meena²,

Kumar³

2022

IJERA

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“…Another way studied by researchers (Ramani et al, 2010;Nowzari et al, 2011;Ajay and Sharma, 2012;Ho et al, 2014;Abdel, 2019) depending on introducing the porous media inside the channels of the double pass solar air heater collectors. These techniques showed the porous media enhances the performance of such collectors to a great extent with a higher pressure drop.…”

Section: Ntroduction Introductionmentioning

confidence: 99%

Experimental Investigation of Double Pass Solar Air Collector for Using in Agricultural Applications

Fahmi

Khalil

Shareef

2020

IJDS

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In this research, an experimental study has been performed in order to enhance the thermal performance of a double-pass solar air collector by employing extended surfaces. In order to increase the heat transfer area, triangular-shaped fins were mounted on the longitudinal direction of the absorber plate. Four models of the solar air collectors were made of aluminum with different fin configurations. The experiments were carried out at the winter season in the climate of Iraq - Ramadi city with longitude 43.268 and latitude (33.43). The used range of mass flow rate in the experiments was from 0.027 kg/s to 0.037 kg/s. The comparison with previous studies in terms of thermal efficiency showed good agreement where the percentage of error does not exceed 1% between them. The results also provided that the existing of fins was a good technique for enhancing the thermal performance of double-pass solar air collector with a marginal increase in pressure drop. Consequently, it is possible to adopt this kind of solar air collectors for many agricultural applications such as solar dryer.

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Energy and Exergy Analysis of a Finned-Plate Double Pass Solar Air Heater with Different Arrangement

Fahmi¹,

Khalil²,

Shareef³

2020

JPEE

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The present work investigated the solar collector system with triangular longitudinal fins fixed to the absorber surface at different configuration. Four models of collectors were manufactured with different absorber plates made from aluminum material. The experiments were carried out at the winter session in the climate of Iraq-Ramadi city with longitude (43.268) and latitude (33.43). The experiments have used three values from (0.027 to 0.037) kg/s. The results showed that the temperature difference increases gradually until midday and begins decreasing gradually until it becomes zero at sunset. Maximum temperatures difference has been obtained at the fourth type which is (20.6˚C), and maximum efficiency and exergetic efficiency (99.9%), (43.08%) respectively. A comparison has been made with previous works for thermal and exergetic efficiency. The comparison showed good compatibility between results; the percentage of error does not exceed 3%. The results proved that the existence of fins was a good technique for enhancing the thermal performance of double pass solar collector with a non-effective increase in pressure drop.

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Recycle Effect on Device Performance of Wire Mesh Packed Double-Pass Solar Air Heaters

Cited by 3 publications

References 32 publications

Double Pass Solar Air Heater: A Review

Double Pass Solar Air Heater: A Review

Experimental Investigation of Double Pass Solar Air Collector for Using in Agricultural Applications

Energy and Exergy Analysis of a Finned-Plate Double Pass Solar Air Heater with Different Arrangement

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