Improvement of the Thermal Performance of Solar Drying Systems Using Different Techniques: A Review

Sandali, Messaoud; Boubekri, Abdelghani; Mennouche, Djamel

doi:10.1115/1.4043613

Cited by 29 publications

(7 citation statements)

References 74 publications

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“…The ambient temperature and solar radiation essay a prominent role in deciding the potential in uence of solar dryers. A review done by Sandali et al (2019) mentioned various techniques to improve the overall e ciency of the drying system. The solar dryer integrated with a chimney augments the buoyant force applied on the air stream resulting in higher air ow velocity and increases the moisture removal rate.…”

Section: Drying Characteristics: Moisture Diffusivity and Activation ...mentioning

confidence: 99%

Study of activation energy and moisture diffusivity of various dipping solutions of ivy gourd using solar dryer

Elangovan

Natarajan²

2022

Environ Sci Pollut Res

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The study is aimed to enhance the shelf life of ivy gourd through the solar drying method in open, forced and natural convection mode. Ivy gourd is treated as the primary agent to prepare medicines and the stems, leaves and owers are used to cure diseases related to diabetics, ulcer, skin. The normal shelf life is 2-3 days and it can be increased up to 6 months with an effective drying process. The experiment is intended to nd the best drying process among the open, natural and forced convection mode with an initial dipping method with ascorbic acid, lemon juice, sugar solution, honey solutions individually and a control sample (without dipping). A 3kg sample of ivy gourd is dipped in 10g/L of each of the solutions and it is used for the three drying processes individually. The obtained results are indicating that the forced convection method for ascorbic acid is best among the other drying method, with the highest moisture diffusivity is 7.88×10 − 8 m 2 /s and the lowest activation energy of 21.12 kJ/mol. It was observed that the drying kinetics of ivy gourd should be considered an indicator of e ciency for solar drying technique from an environmental safety perspective.The in uence of dipping solution and drying mechanisms on the functionalities of drying are discussed with suitable illustrations. drying method, dipping solution, operating conditions, and storage conditions. The dipping pre-treatment mainly affects the nutritional values, which is out of the scope of this paper and requires future work.

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Section: Drying Characteristics: Moisture Diffusivity and Activation ...mentioning

confidence: 99%

Study of activation energy and moisture diffusivity of various dipping solutions of ivy gourd using solar dryer

Elangovan

Natarajan²

2022

Environ Sci Pollut Res

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“…Based on the Scopus database, there is a consistent publication trend of literature review articles related to the PCM-solar thermal energy storage such as in the application of photovoltaic Waqas et. al., 2018;Hasan et al, 2018), solar drying (Sandali et. al., 2019;Berville et.…”

Section: A Bibliometric Analysis: Emerging Research Trendmentioning

confidence: 99%

The Emergence of Phase Change Material in Solar Thermal Energy: A Scientometric Review

Manaf¹,

Jabar²,

Jamian³

2021

ASMScJ

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Phase change material (PCM) features an attractive option due to its solar thermal storage capability to assist the cooling/heating process especially during night operation, thus contributing to the reduction of energy cost and carbon footprint. This study aims to analyse the emergence of PCM in the application of solar thermal energy. Subsequently, to envisage Technology Readiness Level (TRL) and commercialisation opportunity based on historical and contemporary research trends. This review encompasses of peer-reviewed literatures from Scopus database for one decade between 2010 and 2019. Based on the review, there is a moderate growth on the research related to PCM-solar thermal at 22% of emergence rate from the past one decade. China has dominated in this research development by concurring approximately 22% from the number of research articles published globally. It can be concluded that the application of PCM in solar thermal energy system is at TRL 5 which reflects research and development (R&D) progress is at intermediate prototypical development based on the trend of academic publication. Furthermore, based on the review, PCM features great potential in commercialisation opportunity due to its vital contribution as a frontier material/substance in overcoming the challenges of energy and environmental insecurity.

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“…The ambient temperature and solar radiation essay a prominent role in deciding the potential influence of solar dryers. A review done by Sandali et al (2019) mentioned various techniques to improve the overall efficiency of the drying system. The solar dryer integrated with a chimney augments the buoyant force applied on the air stream resulting in higher airflow velocity and increases the moisture removal rate.…”

Section: Drying Characteristics: Moisture Diffusivity and Activation Energymentioning

confidence: 99%

Solar Drying of Ivy Gourd: Influence of Various Dipping Solutions on Activation Energy and Moisture Diffusivity

Elangovan

Kumar

2021

Preprint

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The study is aimed to enhance the shelf life of ivy gourd through solar drying method in open, forced and natural convection mode. Ivy gourd is treated as primary agent to prepare medicines and the stems, leaves; flowers are used to cure the diseases related diabetics, ulcer, skin. The normal shelf life is 2-3 days and it can be increased up to 6 months with an effective drying process. The experiment is intended to find the best drying process among the open, natural and forced convection mode with an initial dipping method with ascorbic acid, lemon juice, sugar solution, honey solutions individually and a control sample (without dipping). A 3kg sample of ivy gourd is dipped in 10g/L of the each of the solution and it is used for the three drying process individually. The obtained results are indicating that forced convection method for ascorbic acid is best among the other drying method with highest moisture diffusivity is 7.88×10-8 m2/s and lowest activation energy 21.12 kJ/mol. It was observed that the drying kinetics of ivy gourd should be considered an indicator of efficiency for solar drying technique from environmental safety perspective. The influence of dipping solution and drying mechanisms on the functionalities of drying are discussed with suitable illustrations.

show abstract

Improvement of the Thermal Performance of Solar Drying Systems Using Different Techniques: A Review

Cited by 29 publications

References 74 publications

Study of activation energy and moisture diffusivity of various dipping solutions of ivy gourd using solar dryer

Study of activation energy and moisture diffusivity of various dipping solutions of ivy gourd using solar dryer

The Emergence of Phase Change Material in Solar Thermal Energy: A Scientometric Review

Solar Drying of Ivy Gourd: Influence of Various Dipping Solutions on Activation Energy and Moisture Diffusivity

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