Thermal behavior modeling of a cabinet direct solar dryer as influenced by sensible heat storage in a fractured porous medium

Sandali, Messaoud; Boubekri, Abdelghani; Mennouche, Djamel

doi:10.1063/1.5039173

Cited by 6 publications

(2 citation statements)

References 14 publications

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“…The obtained results revealed an improvement in the performance of the solar dryer integrated with GWHE. A similar result was reported by Sandali et al, 15 who improved the thermal performance of a direct solar dryer by integrating a sensible heat storage medium. However, only an increase of 4 °C in drying temperature was observed.…”

Section: Ambient and Drying Temperaturessupporting

confidence: 86%

Economic analysis and drying kinetics of a geothermal‐assisted solar dryer for tomato paste drying

et al. 2021

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BACKGROUND:The economic value of many fruit and vegetables is often linked to the ability to preserve such natural products. In the case of tomatoes, the manufacture of 1 kg of powder or concentrate requires the evaporation of about 16 kg water kg −1 dry matter. In the present work, the effectiveness and economic analysis of solar drying systems for drying of tomato paste with and without geothermal water heat exchanger (GWHE) were studied. RESULTS:The GWHE integration significantly increased the recorded drying temperature up to 53.41 °C, with an improvement of 11.5 °C compared to the conventional dryer. Moreover, the drying temperature inside the drying chamber exceeded ambient temperature after sunset and at night by 30.8 °C. GWHE ensured a continuous drying process, while drying time was 22 consecutive hours, compared to the basic dryer with 18 h in 3 days. Effective moisture diffusivity was found to be 1.617 × 10 −9 and 1.202 × 10 −9 m 2 s −1 for hybrid and basic drying systems, respectively, using the slope. Three methods were used to perform economic analysis. The cumulative present worth of savings, at 23 382.6 USD, is much higher than the capital cost of the hybrid dryer, at 467 USD. The payback period is quite acceptable, at 2.21 years as compared to dryer lifetime of 15 years. Therefore, the hybrid dryer will dry tomato paste without additional charges for 12.79 years and is recommended for a large-scale tomato paste dryer.CONCLUSION: The hybrid system with GWHE ensures a continuous drying process during night-time, in addition to reduced drying time. The economic study revealed a high feasibility for the hybrid dryer, with a short payback period.

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Section: Ambient and Drying Temperaturessupporting

confidence: 86%

Economic analysis and drying kinetics of a geothermal‐assisted solar dryer for tomato paste drying

et al. 2021

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“… Chavan et al [ 115 ] NCDSD Potato slices CFD modeling • Air velocity Used ANSYS Fluent software. Sandali et al [ 116 ] NCDSD - CFD modeling • Temperature evolution Employed Fluent CFD software. Alonge and Obayopo [ 117 ] FCDSD Fish CFD numerical simulation • Temperature profile • Velocity contour Used ANSYS Fluent simulation.…”

Section: Modeling Techniques Used For Domestic Solar Dryersmentioning

confidence: 99%

Performance Assessment and Modeling Techniques for Domestic Solar Dryers

Shimpy

Kumar

2023

Food Eng Rev

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Solar dryers have always been criticized for their lower performances. There are numerous ways to define the performance of a solar drying system such as thermal performance, drying kinetics, environmental aspects, economic evaluations, and quality of the dried product. Different modeling techniques have also been developed to design and analyze solar dryers and drying processes. This article presents a systematic, comprehensive, and state-of-the-art overview of various performance indicators and modeling techniques used for the evaluation and analysis of solar dryers, especially domestic and low cost solar dryers. Environmental analysis has severe global implications, and product quality is one of the biggest concerns of consumers. But the environmental impact and product quality assessments for domestic solar dryers are observed to be rarely reported in the literature. The use of modeling techniques in solar drying has changed the way of analyzing any thermal system. Here, an attempt is made to establish an overall assessment criterion for domestic solar dryers and to give a one-stop solution for researchers and users around the world.

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Thermal and Economical Study of a Direct Solar Dryer with Integration of Different Techniques of Heat Supply

Sandali

Boubekri

Mennouche

2020

Springer Proceedings in Energy

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Thermal behavior modeling of a cabinet direct solar dryer as influenced by sensible heat storage in a fractured porous medium

Cited by 6 publications

References 14 publications

Economic analysis and drying kinetics of a geothermal‐assisted solar dryer for tomato paste drying

Economic analysis and drying kinetics of a geothermal‐assisted solar dryer for tomato paste drying

Performance Assessment and Modeling Techniques for Domestic Solar Dryers

Thermal and Economical Study of a Direct Solar Dryer with Integration of Different Techniques of Heat Supply

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