Experimental parametric study of a mixed-mode forced convection solar dryer equipped with a PV/T air collector

Fterich, Mohamed; Chouikhi, Houssam; Bentaher, Hatem; Maalej, Aref

doi:10.1016/j.solener.2018.06.051

Cited by 77 publications

(22 citation statements)

References 20 publications

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“…shows the logic blocks used to calculate the output parameters in the moisture-content part. When the user clicks on the output buttons, these blocks calculate the output results based on Equations (4) and (5). According to Figure 7 and when Md button is clicked, the first step is to write "…" in the RMd label as an empty output result.…”

Section: Solar Collector Efficiency η Colmentioning

confidence: 99%

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Smartphone Application Using a Visual Programming Language to Compute Drying/Solar Drying Characteristics of Agricultural Products

Amer

Chouikhi

2020

Sustainability

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Drying is an important process for food security. A software application on a smartphone can be used to prevent mistakes while carrying out the calculations for drying investigation and research using several mathematical equations. The objective of this research was to develop a software program on cellphones depending on some of the important mathematical equations which are used to conduct some of the drying/solar drying characteristics to assist researchers and engineers who work in the food engineering field for sustainable development. This innovative software application can be installed on mobiles in Android and iOS systems to save effort and time. Mathematical models were developed to compute drying/solar drying calculations. These mathematical models were integrated into the flowchart to develop a software program using visual programming language in the operating system and create the user interface. The collected data from references were used to compare the results from the normal way of calculations with results from the developed software. The results were agreed for both normal calculations and the software. This application software can calculate the moisture content of product, drying ratio, quantity of removed moisture from the fresh products, required heat to evaporate moisture from fresh product, and efficiency of the solar collector.

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Section: Solar Collector Efficiency η Colmentioning

confidence: 99%

“…Solar drying is a method of food drying using a solar dryer that uses solar energy instead of the traditional types of energy and keeps the environment without pollution [3]. One of the main parts of a solar dryer is called a solar collector which collects solar energy to use it for evaporating the moisture from fresh food [4,5].…”

Section: Introductionmentioning

confidence: 99%

Smartphone Application Using a Visual Programming Language to Compute Drying/Solar Drying Characteristics of Agricultural Products

Amer

Chouikhi

2020

Sustainability

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“…It was found that the active mode yielded better thermal performance than the passive mode dryer. Fterich, Chouikhi, Bentaher, and Maalej (2018) experimented on the drying of tomatoes in a mixed‐mode solar dryer equipped with a PVT solar air collector. It was reported that the product size and the loading density influence the drying rate.…”

Section: Introductionmentioning

confidence: 99%

Performance assessments and techno and enviro‐economic analyses on forced convection mixed mode solar dryer

Ekka

Muthukumar

2021

J Food Process Engineering

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Solar drying is an energy‐efficient and eco‐friendly process, and it is extensively used in low‐temperature drying. In this paper, the year around performance and techno enviro‐economic assessments of a forced convection mixed‐mode solar dryer (MSD) are presented. The developed MSD has been tested throughout the year for the drying of various agricultural products such as jackfruit, red chili, turmeric, and ginger. The drying temperature of MSD was maintained 15–33°C higher than the ambient air temperature. The economic evaluation was done based on the net present worth, payback period, life cycle saving, and internal rate of return. The payback period was estimated as 0.9 years. The internal rate of return of 130% was obtained on the initial capital investment of the MSD. The effect of the embodied energies of the developed MSD on the environment was investigated based on equivalent thermal energy. The energy payback time (EPBT) of the developed dryer was 3.75 years, and the net CO2 mitigation potential over the life span of the dryer was 8.4 t. The developed MSD dries the agricultural products under hygienic conditions and provides economic viability to the potential users. Practical application The developed mixed‐mode solar drying system is used for drying various agricultural products. The moisture content of the product is removed at a much faster rate compared to the traditional sun‐drying method. The performance test for various agricultural products dried during their harvesting season shows its efficient performance throughout the year. The main focus of this work is to analyze the techno and enviro‐economic of the designed mixed‐mode solar dryer. The economic analysis shows a higher internal rate of return for the various products dried over the life span of the dryer. Drying in the solar dryer will enhance product quality, reduce post‐harvest losses, carbon emission and establish economic feasibility, helping the farmers get a good return on their produce.

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“…Also, It was indicated that the moisture content decreased from 91.94 (%) to 22.32 (%) for tray 1 and to 28.9 (%) for tray 2 by using the realized prototype, conversely, it decreased to 30.15 (%) by using the open sun dryer. [6]. Mohamed et al studied the hybrid PVT solar system with a solar tunnel dryer under forced mode for drying potato.…”

Section: Introductionmentioning

confidence: 99%

The Hybrid (PVT) Double-Pass System with a Mixed-Mode Solar Dryer for Drying Banana

Jadallah¹,

Alsaadi²,

Hussien³

2020

ETJ

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In this paper, the hybrid PVT double pass system with a mixed-mode solar dryer type under forced convection has been designed, fabricated and installed for drying crops. The dryer was tried by drying 300 grams of banana slices in the air temperature of dryer range from 43.2 to 60.2°C. The initial moisture rate of banana was about 78% and the most dropped in moisture content was from 78% to 33% after 8 hours of the drying process. The banana slices are distributed in two identical trays and it was noticed that the most and least decreasing in weight of banana samples was from 150 to 48 gram and from 150 to 55 gram in lower and upper tray respectively, when the mass flow rate as 0.031 and 0.017 kg/s, which means that the high reduction was 68% of weight banana at a high mass flow rate of airflow. The critical parameter such as temperature distribution of the PVT with dryer room, useful heat gain, and thermal efficiency are computed by using the MATLAB 2015b program built for this purpose. The optimum useful heat gain and thermal efficiency were reached 423.7 and 52.98% respectively when the solar radiation 1190 and the mass flow rate of 0.031 kg/s.

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Experimental parametric study of a mixed-mode forced convection solar dryer equipped with a PV/T air collector

Cited by 77 publications

References 20 publications

Smartphone Application Using a Visual Programming Language to Compute Drying/Solar Drying Characteristics of Agricultural Products

Smartphone Application Using a Visual Programming Language to Compute Drying/Solar Drying Characteristics of Agricultural Products

Performance assessments and techno and enviro‐economic analyses on forced convection mixed mode solar dryer

The Hybrid (PVT) Double-Pass System with a Mixed-Mode Solar Dryer for Drying Banana

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