Assessment of the pineapple drying with a forced convection solar-electrohydrodynamic dryer

Case Studies in Thermal Engineering, Journal Year: 2024, Volume and Issue: 59, P. 104582 - 104582

Published: May 19, 2024

Drying assumes a pivotal role in the preservation of high-moisture products over extended durations. Despite widespread utilization solar dryers owing to their energy-efficient nature, they are often plagued by prolonged drying durations, subsequently impacting quantity dried products. This investigation endeavors introduce an innovative technique aimed at augmenting efficacy processes. Specifically, study integrates forced convection with electrohydrodynamic (EHD) drying. The experimentation entails pineapple slices conducted between December 2023 and January 2024 Nakorn Pathom, Thailand. slices, featuring ring-shaped geometry, subjected varying corona voltages ranging from 7 10 kV. findings reveal direct correlation voltage diffusion coefficient wherein escalation leads elevation coefficient, consequently resulting reduction moisture ratio during process. Consequently, novel approach exhibits superior efficiency compared traditional techniques, particularly as increase. Moreover, employs Buckingham-Pi terms predict fluctuations yielding function R2 value 0.996. Subsequently, kinetics model for process is proposed, boasting average 0.98. envisioned serve vital tool enhancing advancing solar-EHD forthcoming industrial applications.

Language: Английский

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Foam-mat drying of lucuma powder: Mathematical and artificial modeling of drying kinetics, physicochemical and microstructural properties

Journal of Agriculture and Food Research, Journal Year: 2025, Volume and Issue: unknown, P. 101656 - 101656

Published: Jan. 1, 2025

Language: Английский

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Evaluation and Comparison of Drying Models in Open Sun Drying and Photovoltaic and LPG Burner Assisted Hybrid Solar Drying System

Case Studies in Chemical and Environmental Engineering, Journal Year: 2025, Volume and Issue: unknown, P. 101104 - 101104

Published: Jan. 1, 2025

Language: Английский

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Energy and Exergy Analysis of Microwave Drying Kinetics in Cucumber Peels With Quality Assessment

Journal of Food Process Engineering, Journal Year: 2025, Volume and Issue: 48(4)

Published: April 1, 2025

ABSTRACT This study investigates the effects of microwave drying on cucumber peels, focusing how time varies with power levels and material thickness. Experiments were conducted using a household at 90, 360, 600 W samples 2.5 5 mm A digital balance recorded mass loss 1‐min intervals, continued until moisture content was below 0.5% d.b. It finds that decreases significantly as increases. Drying 90 level took 27 min, while 360 W, it takes 9 5.5 respectively. Doubling sample thickness from to increases time, indicating thicker materials require more for diffuse. Microwave also found influence nutrient retention, high‐power preserving polyphenols flavonoids, which are sensitive prolonged heating. Specific extraction rate (SMER) highest samples, showing optimal removal efficiency this setting. energy consumption (SEC) lowest mm, combination most energy‐efficient. Also, retains sugar, lower‐power settings lead greater sugar degradation due heat exposure. Moreover, exergy peels different thicknesses shows is 76.43% 40.51% 40.18% 24.88% 31.77% 16.40% mm. Thicker consistently exhibit higher across all levels, observed W.

Language: Английский

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A Computational Study on Thermal and Sustainability Analysis of Solar Air Heater with S and Airfoil Tabulators

Evergreen, Journal Year: 2024, Volume and Issue: 11(1), P. 295 - 305

Published: March 1, 2024

The solar air heater (SAH) harnesses energy and finds widespread application in various contexts, including drying agricultural products, heating spaces buildings, etc.However, the viability of SAH has a problematic issue due to its low performance, which limits applicability actual applications.In this work, two distinct novel turbulators; namely, S-shape Airfoil (NACA0018) turbulator have designed take advantage their flow structures get enhanced performance SAHs.The thermal analysis rectangular with combination shape turbulators performed numerically.The operating geometric parameters are : relative pitch (P/e) varied from 8 to14, angle attack (α) 0°-45°, Reynolds number (Re) 4000-16000.Both heat transfer friction factor characteristics show significant improvement over smooth SAH.The maximum value thermos-hydraulic is 2.21 been achieved at P/e=12, Re=12000 α=30º.The exergetic was also conducted, yielding efficiency 2.25%.

Language: Английский

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Environmental impact and performance comparison of solar and grid-powered dryers

Energy Sources Part A Recovery Utilization and Environmental Effects, Journal Year: 2024, Volume and Issue: 47(1), P. 61 - 73

Published: Dec. 16, 2024

This article compares the performance of four different types drying systems viz. solar cabinet dryer (SCD), greenhouse (GHD), fluidized bed (FBD) and conventional hot air (HAD) with respect to their impact on environment. The FBD exhibited superior heat & mass transfer shorter time. Drying in HAD, GHD, SCD took 330, 240 210 min respectively reduce moisture content from 6.69 kg/kg around 0.2 kg/kg. average rate was highest for at 1.8737 followed by 1.6288, GHD 1.1805 HAD 1.1748 (kg/kg-hr). had rates similar even though it solely dependent energy. total CO2 mitigation were 9.1 76.56 tons energy payback periods 1.5 2.31 years life cycle conversion efficiencies 29.18% 52.8%. While emitted 28.28 44.07 10 years. Attempt has also been made discuss issues related industrial application solar-based dryers methods have suggested that could increase renewable utilization dryers.

Language: Английский

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Moisture content prediction of municipal sludge drying process based on genetic algorithm optimized BP neural network

Research Square (Research Square), Journal Year: 2024, Volume and Issue: unknown

Published: April 22, 2024

Municipal sludge drying process of internal moisture detection difficulties, and in order to predict the change rule hot-air municipal sludge, under different conditions was monitored through experiments. The prediction model established by optimizing BP neural network using mathematical model, back-propagation (BP) genetic algorithm (GA), performance analysis carried out. In addition, a sensitivity GA-BP performed. results showed that temperature had most significant effect on reducing thickness mud layer could improve rate reduction fast then slow trend during whole process. Through analysis, coefficient determination test set is 0.9999, root mean square error only 0.0039, which means has better can dynamic more accurately. shows time have greatest influence ratio(MR), study provide theoretical basis for optimization procedure, powerful reference guiding resource utilization sludge.

Language: Английский

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Exploring Energy Performance of Taraxacum Leaves Undergoing Hybrid Forced Convection Solar Dryer

Applied Solar Energy, Journal Year: 2024, Volume and Issue: 60(3), P. 411 - 420

Published: June 1, 2024

Language: Английский

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Experimental study of solar drying kinetics and evaluation of activation energy of Eriobotrya japonica fruits

Journal of Food Process Engineering, Journal Year: 2024, Volume and Issue: 47(8)

Published: Aug. 1, 2024

Abstract Given the seasonal nature and high perishability of Eriobotrya japonica fruits, employing effective preservation techniques like drying is crucial to minimize economic losses extend fruit's availability throughout year. This study rigorously examines kinetics fruits using an indirect forced convection solar dryer highlights technological advantages utilizing this over traditional open‐air methods, showing that controlled conditions provide improved rates. The research develops equation for characteristic curve. Midilli‐Kucuk model was demonstrated be most appropriate describing these under various conditions, offering a reliable method predicting behavior at untested temperatures. thermal diffusivity determined rises as temperature increases. application Arrhenius approach enabled determination activation energy 17.79 kJ/mol, confirming substantial impact on process. Practical applications global challenge food preservation, especially perishable , requires innovative efficient solutions ensure year‐round nutritious produce. Our demonstrates methods E. . system maintains consistent air temperature, ensuring stable supply, faster, more uniform drying. A major contribution development curve equation, which optimizing parameters designing specifically not only advances understanding properties but also provides foundation sustainable technologies. By process, contributes improving quality loquat thereby supporting agricultural sustainability reducing post‐harvest losses. work highly relevant broader community, it showcases potential technologies in enhancing while promoting use renewable sources.

Language: Английский

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Effect of Storage, Aqueous Ammonia Soaking and Hydrothermal Pretreatments in Anaerobic Digestion Performance of Sparganium Erectum Biomass

Published: Jan. 1, 2024

Language: Английский

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