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<p>The search for innovative solutions to improve the performance of indirect solar dryers (ISD) remains a challenge. The aim of this study is to propose a numerical approach to a Parabolic Trough Solar Concentrator (PTSC) that can be coupled to a solar dryer. A proposed thermal model has been analyzed from an energy, exergy and environmental point of view, based on a few design parameters (impacts of PTSC imputs on its output performance). The numerical model is simulated in Matlab. Sensitivity analysis shows that a configuration with length <i>L = 2.2&#xa0;m</i>, <InlineEquation ID="IEq1"> <EquationSource Format="TEX">\(\:\dot{m}\)</EquationSource> </InlineEquation><i>=0.07&#xa0;kg/s</i>,<i> T</i><sub><i>i</i>n</sub> between 32 and 36&#xa0;°C gives output temperatures of around 70&#xa0;°C maximum and 62&#xa0;°C monthly average. The proposed PTSC emits an average of 302.02 gCO<sub>2</sub>/month. For daily operation, average daily emissions are estimated at 9.93 gCO<sub>2</sub>/day. Compared with other technologies used in indirect drying, the amount of CO<sub>2</sub> emissions from biomass is 19605.78gCO<sub>2</sub>/year, compared with 7618.25gCO<sub>2</sub>/year from solar thermal and 3624.27gCO<sub>2</sub>/year from the PTSC studied. This system shows promise in significantly improving the performance of environmentally-friendly indirect solar dryers. An experimental realization would be necessary and seen as an asset in the dynamics of innovative solutions of indirect solar dryers (ISD).</p>

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Design and numerical performance analysis of a parabolic trough solar concentrator for solar dryer application

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年11月20日

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  • Magloire Bienvenu Pakouzou,
  • Venant Sorel Chara-Dackou,
  • Vinci De Dieu Bokoyo Barandja,
  • Thierry Serge Gbembongo,
  • Noé Landry M’bouana,
  • Oscar Auguste Mackpayen,
  • Timoléon Mbaïkoua,
  • Deli Goron,
  • Mahamat Hassane Babikir

摘要

The search for innovative solutions to improve the performance of indirect solar dryers (ISD) remains a challenge. The aim of this study is to propose a numerical approach to a Parabolic Trough Solar Concentrator (PTSC) that can be coupled to a solar dryer. A proposed thermal model has been analyzed from an energy, exergy and environmental point of view, based on a few design parameters (impacts of PTSC imputs on its output performance). The numerical model is simulated in Matlab. Sensitivity analysis shows that a configuration with length L = 2.2 m, \(\:\dot{m}\) =0.07 kg/s, Tin between 32 and 36 °C gives output temperatures of around 70 °C maximum and 62 °C monthly average. The proposed PTSC emits an average of 302.02 gCO2/month. For daily operation, average daily emissions are estimated at 9.93 gCO2/day. Compared with other technologies used in indirect drying, the amount of CO2 emissions from biomass is 19605.78gCO2/year, compared with 7618.25gCO2/year from solar thermal and 3624.27gCO2/year from the PTSC studied. This system shows promise in significantly improving the performance of environmentally-friendly indirect solar dryers. An experimental realization would be necessary and seen as an asset in the dynamics of innovative solutions of indirect solar dryers (ISD).