Incorporation of a solar tracking system for enhancing the performance of solar air heaters in drying apple slices

ElGamal, Ramadan; Kishk, S. S.; Al-Rejaie, Salim S.; ElMasry, Gamal

doi:10.1016/j.renene.2020.11.137

Cited by 29 publications

(10 citation statements)

References 32 publications

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“…In the same way, Doymaz [38] obtained diffusivities between 3.00 × 10 −10 m 2 s −1 , and 4.13 × 10 −10 m 2 s −1 for Amasya red apples (5 × 10 −3 m thick) dried at 328 K, 338 K, and 348 K at 2 m s −1 . More recently, ElGamal et al [39] calculated effective diffusivities of Red Delicious apples (6 × 10 −3 m thick) dried in a solar dryer equipped with light sensors to track the position of the sun at a different time of day. These results have been compared with a sample batch dried in a fixed solar dryer and another dried under the temperature and velocity of ambient air.…”

Section: Effect Of Design Jet Parameters On the Apparent Moisture Diffusivitymentioning

confidence: 99%

A Case Study of Turbulent Free Jet Flows Issuing from Rectangular Slots on Process Performances and Quality of Hot-Air-Dried Apple

et al. 2021

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This study deals with the improvement in drying process performances and the quality of the final product for industrial equipment in the food industry. Designers need to optimize the design parameters of devices to create synergies between the greater energy efficiency of the process and high-quality dried products. Air impingement drying was carried out on apple cylinders at 323 K and with air velocities ranging between 30 and 60 m s−1. The studied drying process presents a particular setup of jets as they are multiple rectangular slot jets issued from triangular nozzles. The effect of four design jet parameters (slot width, nozzle-to-surface height, nozzle-to-nozzle spacing, and airflow) on the drying process performances and the quality of the final product was analyzed and optimized using response surface methodology (RSM). A minimal influence of design jet parameters on the process performances was shown, while an important impact was observed on the quality of dried apple. The slot width and the nozzle-to-nozzle spacing had a significant effect on the textural and functional properties. Predictive models were established and good agreements were found between predictive and observed values. Sorption isotherms were properly modeled by the Guggenheim–Anderson–de Boer (GAB) model.

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Section: Effect Of Design Jet Parameters On the Apparent Moisture Diffusivitymentioning

confidence: 99%

A Case Study of Turbulent Free Jet Flows Issuing from Rectangular Slots on Process Performances and Quality of Hot-Air-Dried Apple

et al. 2021

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“…However, using PV panels in the long term with the grid power can prevent the distribution of the wires and network and supply the yearly national grid's power cut-offs. It is used for drying mechanisms and significantly boosts the renewable energy supply sources, as is stated in [8]- [10]. There are many reasons to go forward for investment in solar energy, such; as being environmentally friendly, taking Off-the-Grid system, handling the underutilized lands, less loss in the electricity, increasing job opportunities and growing economically, and the, more important that it is a free source and infinite energy.…”

Section: Introductionmentioning

confidence: 99%

“…The STS can use as a water heating process which is tested for two types of the outlet solar. The dual tracking technology raised the water temperature significantly [10], [21]. M. Das and E. K. Akpinar [22] noted that the STS also could be used in the dryer process.…”

Section: Introductionmentioning

confidence: 99%

Influence of Micro-Controller-Based Single Axis Solar Tracker System on Solar Panel’s Performance: Case Study

Jaafar

Maarof

2022

NTU-JRE

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There is governmental, academic, and business interest in new emerging renewable energy sources, such as solar energy. In particular, how and how much it produces energy and the environmental impact of these sources. To highly benefit from renewable energies, new methods should be utilized. In this paper, the Microcontroller Arduino Uno board has been used and programmed by Arduino software to build a system as a photo-sensor (Active) Single Axis Solar Tracker System (SASTS). The system was created using a solar panel, two Light Dependent Resistance (LDR) have been used on the two sides (north/south) of the photovoltaic (PV), and a servo motor is connected to the Uno board. The tracking system is constructed to procure the data using the Microcontroller Uno board and specially designed mechanical base. Based on the extracted results, the influence of the SASTS on increasing the solar panel performance is more evident than the outcome Maximum Power Point (MPP) of MATLAB Simulink. Continuously, the SASTS searches for the sun and its position in the sky and puts the PV direct to the sun. Significantly, the tracker system raises the power ratio of the PV. As a result, it significantly increases the solar panel's performance and increases by 55.2% on average during the daytime.

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“…Important studies were carried out in different conditions of flow and under various weather conditions from different regions of solar energy systems, such as those shown in Figure 1 for many researchers such as Qasem et al [14], Arun et al [15], El Gamal et al [16], Vivekanandan et al [17], Afshari et al [18], Yu et al [19], Khanlari et al [20,21], Abo-Elfadl et al [22], and Li et al [23].…”

Section: Introductionmentioning

confidence: 99%

“…(a) Flat-plate air SH [14] (b) Plain-and-dimples type tube water SH [15] (c) Air SH (solar tracking) [16] (d) Fully-developed air-flow SH [17] (e) Tube-model air SH [18] (f) Cellular-heat-pipe water SH [19] (g) V-TP and V-QP air SHs [20] (h) Tube-type air SH [21] (i) Double-and-single pass air SH [22] (j) Air SH with vs. surface forms [23] Figure 1. Various solar heaters Rectangular duct heat exchangers were recently studied [24,25] in order to enhance heat transfer, which can be used in many fields of energy systems.…”

Section: Introductionmentioning

confidence: 99%

Design, Construction and Experimental Testing of Solar Water Heaters under Saharan Weather Conditions

Amar¹,

Maouedj²,

Atillah³

et al. 2021

IJSDP

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In order to produce hot water, a solar energy collector is investigated experimentally in the current study. Various investigations are carried out in order to highlight the performance of the collector. Determining daily performance for different time periods is also under study. The collector was manufactured using inexpensive materials that are available on the local market. This study aims to encourage rural families to use solar energy to heat water by providing solar collectors. The results revealed that the hot-water temperature at the collectoroutlet exceeded the temperature of 50℃, with an average daily yield of about 60%, under the Saharan climatic conditions of the city of Adrar.

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Incorporation of a solar tracking system for enhancing the performance of solar air heaters in drying apple slices

Cited by 29 publications

References 32 publications

A Case Study of Turbulent Free Jet Flows Issuing from Rectangular Slots on Process Performances and Quality of Hot-Air-Dried Apple

A Case Study of Turbulent Free Jet Flows Issuing from Rectangular Slots on Process Performances and Quality of Hot-Air-Dried Apple

Influence of Micro-Controller-Based Single Axis Solar Tracker System on Solar Panel’s Performance: Case Study

Design, Construction and Experimental Testing of Solar Water Heaters under Saharan Weather Conditions

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