Heat Balance of Combined Heat Exchanger Aerodynamic Heating Dryers

Купреенко, А. И.; Isaev, Khafiz; Kuznetsov, Yu. A.; Кравченко, И. Н.; Ašonja, Aleksandar; Kalashnikova, Larisa

doi:10.46793/adeletters.2022.1.3.2

Cited by 3 publications

(2 citation statements)

References 28 publications

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“…During this process, the moisture content is continuously altered and is generally calculated on a wet basis (Equation ( 19)). The final moisture content and drying rate can be determined according to Equations ( 20) and (21), respectively.…”

Section: Dryer Efficiency and Energy Consumption Calculationsmentioning

confidence: 99%

“…So, there are combined types of dryers (hybrid dryers) with different heat energy sources that are very often used [18][19][20]. In this context, [21] pointed out that the air solar collector combined with the heat exchanger led to an increase in the drying temperature agent at the outlet by another 10 • C without extra costs from electrical energy consumption.…”

Section: Introductionmentioning

confidence: 99%

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Harnessing Solar Energy: A Novel Hybrid Solar Dryer for Efficient Fish Waste Processing

Deef,

Samy Helal,

El-Sebaee

et al. 2023

AgriEngineering

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Facing severe climate change, preserving the environment, and promoting sustainable development necessitate innovative global solutions such as waste recycling, extracting value-added by-products, and transitioning from traditional to renewable energy sources. Accordingly, this study aims to repurpose fish waste into valuable, nutritionally rich products and extract essential chemical compounds such as proteins and oils using a newly developed hybrid solar dryer (HSD). This proposed HSD aims to produce thermal energy for drying fish waste through the combined use of solar collectors and solar panels. The HSD, primarily composed of a solar collector, drying chamber, auxiliary heating system, solar panels, battery, pump, heating tank, control panel, and charging unit, has been designed for the effective drying of fish waste. We subjected the fish waste samples to controlled drying at three distinct temperatures: 45, 50, and 55 °C. The results indicated a reduction in moisture content from 75.2% to 24.8% within drying times of 10, 7, and 5 h, respectively, at these temperatures. Moreover, maximum drying rates of 1.10, 1.22, and 1.41 kgH2O/kg dry material/h were recorded at 45, 50, and 55 °C, respectively. Remarkable energy efficiency was also observed in the HSD’s operation, with savings of 79.2%, 75.8%, and 62.2% at each respective temperature. Notably, with an increase in drying temperature, the microbial load, crude lipid, and moisture content decreased, while the crude protein and ash content increased. The outcomes of this study indicate that the practical, solar-powered HSD can recycle fish waste, enhance its value, and reduce the carbon footprint of processing operations. This sustainable approach, underpinned by renewable energy, offers significant environmental preservation and a reduction in fossil fuel reliance for industrial operations.

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Section: Dryer Efficiency and Energy Consumption Calculationsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Harnessing Solar Energy: A Novel Hybrid Solar Dryer for Efficient Fish Waste Processing

Deef,

Samy Helal,

El-Sebaee

et al. 2023

AgriEngineering

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Energy integration of corn cob in the process of drying the corn seeds

Elqadhi,

Skrbic,

Mohamoud

et al. 2024

Therm sci

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A greater contribution to energy production in the future should be expected from agricultural biomass, because current research indicates low utilization of agricultural biomass specifically in the direct combustion process. The paper presents an example of energy integration of the corn cob in the process of drying seed corn. The paper presents the efficient method of drying corn seed with one's own corn cob. The technological process of drying is presented through the technological process of operation of the corn seed dryer on the corn cob, the energy industrial plant of the dryer and the technological process of two-pass drying of the cob. The main characteristic of a given dryer is the process of two-pass drying of the cob, because the air passes through the cob layer twice and in that way energy is saved. The drying time on the presented dryer has been shortened from the usual time from 90 h to 80 h, i.e. by 11%. This increase in performance results in a 15% reduction in dryer operating costs.

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