Mathematical modelling of counter flow v-grove solar air collector

Karim, Azharul; Pérez, Edwar L.; Amin, Zakaria Mohd.

doi:10.1016/j.renene.2013.11.027

Cited by 69 publications

(31 citation statements)

References 11 publications

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“…The model was able to correctly predict the mean temperature of any component of the air collector, the instantaneous air temperature at any section of the collector, the output air temperature, and efficiency. The simulation results were verified by experimental results available in the literature [47] and it was observed that the model had the ability to predict the performance of the air collector accurately as proven by the comparison of experimental result and simulation.…”

Section: Dpsahs With Extended Surfacementioning

confidence: 54%

“…The efficiency of the collector was found to be a strong function of MFR. Performance of the flat, finned and V-corrugated absorber plate type of SAHs in both single pass and double pass mode were investigated both experimentally and theoretically by Karim and Hawladar [47]. It was reported that the V-corrugated absorber showed the highest thermal efficiency as compared to others for the same range of design and operating conditions.…”

Section: Dpsahs With Extended Surfacementioning

confidence: 99%

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A review on different techniques used for performance enhancement of double pass solar air heaters

Ravi

Saini

2016

Renewable and Sustainable Energy Reviews

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Section: Dpsahs With Extended Surfacementioning

confidence: 54%

Section: Dpsahs With Extended Surfacementioning

confidence: 99%

A review on different techniques used for performance enhancement of double pass solar air heaters

Ravi

Saini

2016

Renewable and Sustainable Energy Reviews

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“…Applications of recycling operations were investigated experimentally and numerically and it was shown that the thermal performance enhancement was accomplished by increasing the heat-transfer coefficients in the wire mesh packed [13], v-grove [14] and baffled [15] solar air heaters. The influence of the wavelike flow channel of solar air collector was investigated in enhancing the thermal performance for cross-corrugated [16] and v-corrugated plates [17] solar air heaters.…”

Section: Introductionmentioning

confidence: 99%

Device Performance Improvement of Recycling Double-Pass Cross-Corrugated Solar Air Collectors

Chang

Hsiao

et al. 2018

Energies

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Abstract:The device performance of cross-corrugated double-pass solar air heaters under external recycle conditions was investigated experimentally and theoretically, and solved numerically using the Newton method. Comparisons were made and represented graphically among three different configurations of the single-pass, flat-plate double-pass and cross-corrugated double-pass devices. Air flowing simultaneously over the wavelike corrugated absorbing plate and in-between both wavelike cross-corrugated absorbing and transverse bottom plates was conducted under double-pass operations. A considerable heat-transfer efficiency enhancement is obtained employing such a recycling double pass device with welding cross-corrugated absorbing plates, instead of using the flat-plate device. An effective thermal performance was achieved because the heat transfer area is doubled and the turbulent intensity is enhanced as well. The power consumption increment owing to the reduction in the cross-sectional area was taken into account associated with the heat-transfer efficiency enhancement for comparisons in determining the optimal design on an economic consideration for the recycling cross-corrugated double-pass device.

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“…This thermal energy is then conducted to the inner surface of the absorber tube and transferred to the heat transfer fluid by forced convection. This is considered a coupled heat transfer problem with complex geometrical conditions [1].…”

Section: Introductionmentioning

confidence: 99%

Investigation of the Effect of Physical and Optical Factors on the Optical Performance of a Parabolic Trough Collector

2017

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Abstract:The overall thermal performance of a Parabolic Trough Collector (PTC) depends on its optical performance, particularly the uniformity of the irradiance distribution and the resultant optical efficiency of the collector. Local Concentration Ratio (LCR), optical efficiency and average light concentration are three fundamental parameters of the optical performance of a PTC. These parameters are affected by various optical and physical factors. The effects of these individual factors on the performance parameters were investigated in this study using a verified Monte Carlo ray tracing optical simulation model. The investigation revealed that all three performance parameters are directly related to the optical properties of the collector components. The values decreased gradually with the increase of focal length of the mirror. Uniformity of the LCR profile was observed to decrease with increasing rim angle and geometric concentration. Defocus dislocation of the receiver was found to improve the uniformity of the LCR distribution by decreasing its peak concentrations, C max . Off-focus dislocation of the receiver, and inward angular deviation of the mirror profile were observed to increase the C max and decrease the uniformity of the LCR distribition. Out-focus dislocation of the receiver and solar tracking error distort the bi-symmetry of a normal LCR profile.

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Mathematical modelling of counter flow v-grove solar air collector

Cited by 69 publications

References 11 publications

A review on different techniques used for performance enhancement of double pass solar air heaters

A review on different techniques used for performance enhancement of double pass solar air heaters

Device Performance Improvement of Recycling Double-Pass Cross-Corrugated Solar Air Collectors

Investigation of the Effect of Physical and Optical Factors on the Optical Performance of a Parabolic Trough Collector

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