Effectiveness of recyclable aluminum cans in fabricating an efficient solar collector for drying agricultural products

Kishk, S. S.; ElGamal, Ramadan; ElMasry, Gamal

doi:10.1016/j.renene.2018.10.028

Cited by 32 publications

(15 citation statements)

References 39 publications

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“…Цікаве застосування використаних алюмінієвих банок запропоновано в Єгипті [17]: банки з обрізаними основами й кришками послідовно складають між собою з отриманням ефективних сонячних колекторів. Недолік конструкції запропонованих сонячних колекторів -неможливість використання здеформованих та пошкоджених банок, а також банок різного типорозміру.…”

Section: алюмінієві банки з-під напоївunclassified

State and Prospects of Handling Metal-Containing Household Waste

Микулёнок

2022

Energ. Tech. & Res. Sav.

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The basic data on the volume of the formation of household (municipal) metal-containing waste, in particular, aluminum cans for drinks, cans, waste electrical and electronic equipment, electrical power sources (batteries and galvanic cells), as well as lighting lamps. The main methods of handling the indicated waste are considered and their critical analysis is presented. Particular attention is paid to the recycling and disposal of common waste such as waste electrical and electronic equipment, chemical sources of electrical current, and lighting lamps. Taking into account the rapid growth in the consumption of electrical and electronic products, it is shown that now there is a tendency not so much to improve the methods of disposal of the corresponding waste, but to ensure the production of more durable goods that provide for the possibility of their repair. A gradual transition from the 3R strategy (Reuse, Reduce, Recycle) to the 10R strategy (Refuse, Rethink, Reconsider, Reuse, Repair, Refurbish, Remanufacture, Repurpose, Recycle, Recover) is proposed. At the same time, the development of effective technologies for extracting not only traditional iron, aluminum, copper and their alloys from metal-containing household waste is not removed from the agenda, but also more scarce metals, including rare earth and heavy metals, as well as platinum group metals, which will allow significantly reduce the man-made load on the environment. Bibl. 69, Table 1.

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Section: алюмінієві банки з-під напоївunclassified

State and Prospects of Handling Metal-Containing Household Waste

Микулёнок

2022

Energ. Tech. & Res. Sav.

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“…where MRexp,i is the ith experimentally observed moisture ratio, MRpre,i is the ith predicted moisture ratio and N is the number of observations (Kishk et al, 2019). The best model describing the drying behavior of mint was chosen as the one with the highest value of R 2 and the lowest values of P and RMSE.…”

Section: Mathematical Modeling Of Drying Curvesmentioning

confidence: 99%

“…About 75.7% of essential oils are lost during oven drying at 60 °C than at 30 °C (Baydar and Erbas, 2009). In most developing countries such as Egypt, the conventional sun drying technique for agricultural products is traditionally performed by spreading the produce on an open floor/field under the sun for a period of time and until the desired level of moisture content is reached (Kishk et al, 2019). However, the contamination with dust, soil, sand particles, and insects are some problems associated with this method (Sallam et al 2015;Sreekumar et al, 2008).…”

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confidence: 99%

Experimental and Mathematical Modeling Study for Solar Drying of Mint

Kishk

El-Reheem

ElGamal

2018

Misr Journal of Agricultural Engineering

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Mint plant was dried using greenhouse solar dryer. Two of the forced convection operating modes (continuous and intervals) were used and compared with the open sun drying method. The drying kinetics of mint (Mentha spicata L.) in terms of moisture content, moisture ratio, drying time and drying rate was investigated. The continuous forced convection mode gives the highest drying rate for mint than the interval mode and open sun drying. The drying data of solar and open sun drying of mint were fitted to ten thin layer drying models and the Modified Henderson and Pabis model satisfactorily described the drying behavior of mint with highest R 2 (0.99) and lowest P and RMSE values than other models. The results of the study are very useful for commercial scale drying of mint to optimize the drying process and to achieve a superior quality dried product.INTRODUCTION int leaves can be used as a medicinal and aromatic plant. It helps in colds, flu, fever, poor digestion, food poisoning, rheumatism, motion sickness, hiccups, stings, earaches, flatulence and for throat and sinus ailments (Akpinar, 2010). Because of high moisture content (78-85%, w.b), mint is ordinarily dried for market, in order to slow microbial growth and biodegradation and to reach a final product with an effectively increased shelf life (Tarhan et al., 2010;Sallam et al., 2015). Also, drying brings about a substantial reduction in weight and volume, minimizing packaging, storage, and transportation costs (Doymaz, 2006;Kadam and Samuel, 2006). Drying is the most common method of medicinal plant preservation and due to high investment and energy costs, drying is also a large expense in medicinal plant production.

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“…However, air solar collectors have low thermal efficiency related to their low heat transfer coefficient. Various researches have been conducted in order to enhance the thermal performance of air solar collectors by increasing this key factor (Kishk, ElGamal, and ElMasry 2019;Vengadesan and Senthil 2020;Yadav and Bhagoria 2014). Several modifications have been performed over the absorber plate of the air solar collector with the aim of enhancing the heat transfer.…”

Section: Introductionmentioning

confidence: 99%

“…Moreover, they reported that the circular transverse wire rib roughness with P/e = 10.71 and e/D = 0.042 provides better thermal enhancement factor for the studied range of parameters and thus can be employed for heat transfer augmentation. An innovative idea from the environmental point of view using recyclable aluminum cans as absorber plate for air solar collector was proposed by Kishk et al(2019). They designed and investigated the effectiveness of recyclable aluminum cans in the fabrication of a solar collector for drying purposes.…”

Section: Introductionmentioning

confidence: 99%

Performance Of An Air Solar Collector With Different Absorber Modifications Under The Climatic Conditions Of Marrakech-Morocco

Mellalou

Mouaky²,

Vall³

et al. 2021

Iğdır Üniversitesi Fen Bilimleri Enstitüsü Dergisi

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Solar air collectors are commonly used in a variety of domestic and industrial fields. The simple design and low maintenance cost are among their advantages compared to other solar collectors. However, the main challenge of this type of collector is the low heat transfer coefficient. In this work, the effect of different designs of the absorber plate (waved and V corrugated modification) on the thermal performances, the heat exchange effectiveness and the air outlet temperature of a Double-Pass Parallel-Flow air solar collector was investigated under the solar radiation of Marrakech-Morocco in a clear day and for three different mass flows rates (0.008 kg s -1 , 0.012 kg s -1 and 0.016 kg s -1 ). The numerical study was done using Computational Fluid Dynamics (CFD) by the mean of ANSYS Fluent 16.0. The obtained results showed that the V corrugated modification is the most efficient one with efficiency equal to 76.92 % and 87.97 % under the lowest and highest mass flow, respectively.

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Effectiveness of recyclable aluminum cans in fabricating an efficient solar collector for drying agricultural products

Cited by 32 publications

References 39 publications

State and Prospects of Handling Metal-Containing Household Waste

State and Prospects of Handling Metal-Containing Household Waste

Experimental and Mathematical Modeling Study for Solar Drying of Mint

Performance Of An Air Solar Collector With Different Absorber Modifications Under The Climatic Conditions Of Marrakech-Morocco

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