Technical Performance of an Inflatable Solar Dryer for Drying Amaranth Leaves in Kenya

The technical performance of an inflatable solar dryer (ISD) to dry amaranth leaves (Amaranthus spp.) was investigated. To handle the drying of lightweight materials, modification was made by adding an air deflector and trays inside the ISD. Computational performance of the ISD solar energy system w...

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Autores principales: Romuli, Sebastian, Schock, Steffen, Nagle, Marcus, Chege, Christine G. Kiria, Müller, Joachim
Formato: Journal Article
Lenguaje:Inglés
Publicado: MDPI 2019
Materias:
Acceso en línea:https://hdl.handle.net/10568/103611
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author Romuli, Sebastian
Schock, Steffen
Nagle, Marcus
Chege, Christine G. Kiria
Müller, Joachim
author_browse Chege, Christine G. Kiria
Müller, Joachim
Nagle, Marcus
Romuli, Sebastian
Schock, Steffen
author_facet Romuli, Sebastian
Schock, Steffen
Nagle, Marcus
Chege, Christine G. Kiria
Müller, Joachim
author_sort Romuli, Sebastian
collection Repository of Agricultural Research Outputs (CGSpace)
description The technical performance of an inflatable solar dryer (ISD) to dry amaranth leaves (Amaranthus spp.) was investigated. To handle the drying of lightweight materials, modification was made by adding an air deflector and trays inside the ISD. Computational performance of the ISD solar energy system was evaluated using MATLAB Simulink. The estimated air mass flow in the inlet of the ISD was 0.75 kg/s. Using computational fluid dynamics (CFD), the uniformity of air distribution in the ISD was evaluated. The solar radiation reported during good drying performance ranged between 510 and 950 W/m2. In a controlled charging system, a 100 Wp PV module typically generated voltage between 10.22 and 18.75 V. Drying conditions at temperatures of 40 °C or above were typically achieved in the ISD from 12:00 to 16:00. Temperature inside the ISD could reach up to 69.4 °C during the day and 13.4 °C during the night. The highest relative humidity of 97.4% was recorded during the night. Opening the ISD while mixing the product could lead to considerable heat loss. Fluctuation of solar radiation and shaded areas in the ISD appeared to be the major factors affecting the drying performance
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language Inglés
publishDate 2019
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spelling CGSpace1036112025-03-13T09:45:41Z Technical Performance of an Inflatable Solar Dryer for Drying Amaranth Leaves in Kenya Romuli, Sebastian Schock, Steffen Nagle, Marcus Chege, Christine G. Kiria Müller, Joachim photovoltaic systems postharvest renewable energy energía renovable kenya The technical performance of an inflatable solar dryer (ISD) to dry amaranth leaves (Amaranthus spp.) was investigated. To handle the drying of lightweight materials, modification was made by adding an air deflector and trays inside the ISD. Computational performance of the ISD solar energy system was evaluated using MATLAB Simulink. The estimated air mass flow in the inlet of the ISD was 0.75 kg/s. Using computational fluid dynamics (CFD), the uniformity of air distribution in the ISD was evaluated. The solar radiation reported during good drying performance ranged between 510 and 950 W/m2. In a controlled charging system, a 100 Wp PV module typically generated voltage between 10.22 and 18.75 V. Drying conditions at temperatures of 40 °C or above were typically achieved in the ISD from 12:00 to 16:00. Temperature inside the ISD could reach up to 69.4 °C during the day and 13.4 °C during the night. The highest relative humidity of 97.4% was recorded during the night. Opening the ISD while mixing the product could lead to considerable heat loss. Fluctuation of solar radiation and shaded areas in the ISD appeared to be the major factors affecting the drying performance 2019-08-20 2019-09-10T19:47:29Z 2019-09-10T19:47:29Z Journal Article https://hdl.handle.net/10568/103611 en Open Access MDPI Romuli, Sebastian; Schock, Steffen; Nagle, Marcus; Chege, Christine G. Kiria & Müller, Joachim (2019). Technical Performance of an Inflatable Solar Dryer for Drying Amaranth Leaves in Kenya. Applied Sciences, 9(16): 3431
spellingShingle photovoltaic systems
postharvest
renewable energy
energía renovable
kenya
Romuli, Sebastian
Schock, Steffen
Nagle, Marcus
Chege, Christine G. Kiria
Müller, Joachim
Technical Performance of an Inflatable Solar Dryer for Drying Amaranth Leaves in Kenya
title Technical Performance of an Inflatable Solar Dryer for Drying Amaranth Leaves in Kenya
title_full Technical Performance of an Inflatable Solar Dryer for Drying Amaranth Leaves in Kenya
title_fullStr Technical Performance of an Inflatable Solar Dryer for Drying Amaranth Leaves in Kenya
title_full_unstemmed Technical Performance of an Inflatable Solar Dryer for Drying Amaranth Leaves in Kenya
title_short Technical Performance of an Inflatable Solar Dryer for Drying Amaranth Leaves in Kenya
title_sort technical performance of an inflatable solar dryer for drying amaranth leaves in kenya
topic photovoltaic systems
postharvest
renewable energy
energía renovable
kenya
url https://hdl.handle.net/10568/103611
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