Influence of irradiance and irradiation on characteristic parameters for a solar air collector prototype

Leśny, Jacek; Panfil, Monika; Urbaniak, Marek

doi:10.1016/j.solener.2018.02.047

Cited by 11 publications

(8 citation statements)

References 11 publications

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“…One of the simple and direct applications of this natural and free energy is the conversion of the solar irradiation into heat, which can be used either for solar heating of building, solar refrigeration, industrial processes, and the solar collector. In this last case, conversion is done using the collectors, with the aim of heating water or air for domestic uses [2] and industrial applications [3,4]. It can also be employed for the drying of the agricultural produce.…”

Section: Introductionmentioning

confidence: 99%

Influence of Geometric Parameters on the Thermal Performances of a Double Air Pass Solar Collector

Abraham¹,

Ghiaus²

2019

SJEE

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This work focused on the numerical study of the thermal performance of a solar collector in order to improve the indirect solar drying of fruit in an environment with high solar potential. It aims to contribute to the reduction of post-harvest losses observed during periods of high production. From the retained physical model, an equivalent electrical scheme has been established and energy balance was applied to each slice of the model using the nodal method. The obtained different equations were discretized using the implicit method of finite differences, and solved by the iterative Gaussian Pivot method written in FORTRAN program. The obtained results showed that, from April to June (mangoes harvest period in Ngaoundere city) the raining period in Adamawa Region, the solar air collector that length to width ratio is between 2 and 3, is sufficient to carry out indirect solar drying of fruits with forced convection. The outlet air temperature of the solar collector was between 45 and 60°C with an average value of 50°C, and the thermal efficiency was between 65 and 95% with an average value of 80%. Double glazing improves efficiency of the solar air collector for a small footprint.

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Section: Introductionmentioning

confidence: 99%

Influence of Geometric Parameters on the Thermal Performances of a Double Air Pass Solar Collector

Abraham¹,

Ghiaus²

2019

SJEE

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“…The conversion efficiency of solar panels is influenced by numerous factors, such as the type of device, the applied technology and materials [15][16][17][18], solar radiation parameters [19][20][21][22] and weather conditions (ambient temperature, wind and particulate pollution) [23][24][25][26][27][28]. From the practical point of view, these parameters are largely variable and independent because users can only control the collector's orientation relative to the angle at which the incoming insolation strikes the absorber [29][30][31][32][33][34].…”

Section: Introductionmentioning

confidence: 99%

The Influence of Weather Conditions on the Optimal Setting of Photovoltaic Thermal Hybrid Solar Collectors—A Case Study

et al. 2020

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The potential absorption of solar energy in photovoltaic thermal (PVT) hybrid solar collectors at different tilt angles was compared in the present study. The optimal tilt angles were tested in three variants: during 1 day, 1 year and a period of 30 years. Simulations were performed based on actual weather data for 30 years, including average hourly total radiation, insolation and air temperature. The apparent movement of the Sun across the sky, solar radiation properties, and the electrical and thermal efficiency of a PVT collector were also taken into account in the simulation model. The optimal orientation of the absorber surface was determined by solving an optimization task. The results of the study indicate that in the long-term perspective, the collector’s performance is maximized when the absorber is positioned toward the south at an elevation angle of 34.1°.

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“…Naphon (2005), calculated the thermal efficiency of the finned SAC with double-pass flow as 30-60% in theoretical work. Lesny et al (2018) experimentally examined the change in the outlet temperature of a vertically positioned SAC due to solar irradiance. According to the results, collector efficiency varies between 42-46% (Lesny et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

“…Lesny et al (2018) experimentally examined the change in the outlet temperature of a vertically positioned SAC due to solar irradiance. According to the results, collector efficiency varies between 42-46% (Lesny et al, 2018). Omati studied to investigate various effects for tomato drying application with solar air heater.…”

Section: Introductionmentioning

confidence: 99%

Energy-Exergy Analysis of A Novel Multi-Pass Solar Air Collector With Perforated Fins

Aktaş

Sözen

Tuncer

et al. 2019

Int. J. Renew. Energy Dev.

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This work presents performance analysis of a novel multi-pass solar air collector with perforated fins (MPSACF) in winter conditions, Ankara province, Turkey. The aim of this work is to experimentally test and compare the performance of the two different design of solar collectors in the same climatic conditions. In addition, a double-pass solar air collector without fins (DPSAC) at the same absorber area was manufactured and tested as a control group. The total absorber area of both solar collectors is 0.325 m2. Thermal effects for performance improvement of the collectors have been designated. Average thermal efficiency values of DPSAC and MPSACF were calculated as 47.85% and 51.86%, 67.10% and 72.86%, respectively in experiments performed at 0.0069 kg/s (0.7 m/s air velocity) and 0.0087 kg/s (0.9 m/s air velocity) mass flow rates. Exergy efficiency of DPSAC and MPSACF were 2.10-17.12% and 8.74-23.97%, respectively. Coefficient of performance(COP) values were ocomputed 4.63 and 4.94, 3.18 and 3.48 respectively in experiments performed at 0.0069 kg/s and 0.0087 kg/s mass flow rates. Although the MPSACF has high efficiency values, COP values are lower due to the presence of dual fans. Because of their high thermal efficiency, both collectors can be effectively practiced for applications such as preheating, space heating and ventilation, greenhouse heating and product drying©2019. CBIORE-IJRED. All rights reservedArticle History: Received May 16th 2018; Received in revised form October 16th 2018 ; Accepted January 6th 2019; Available onlineHow to Cite This Article: Aktaş, M., Sözen, A., Tuncer, A.D., Arslan, E., Koşan, M., Çürük, O. (2018) Energy-exergy analysis of a novel multi-pass solar air collector with perforated fins Submitted to International Journal of Renewable Energy Development, 8(1), 47-55.http://dx.doi.org/10.14710/ijred.8.1.47-55

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Influence of irradiance and irradiation on characteristic parameters for a solar air collector prototype

Cited by 11 publications

References 11 publications

Influence of Geometric Parameters on the Thermal Performances of a Double Air Pass Solar Collector

Influence of Geometric Parameters on the Thermal Performances of a Double Air Pass Solar Collector

The Influence of Weather Conditions on the Optimal Setting of Photovoltaic Thermal Hybrid Solar Collectors—A Case Study

Energy-Exergy Analysis of A Novel Multi-Pass Solar Air Collector With Perforated Fins

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