Thermodynamic properties for different equilibrium moisture content in sunn hemp seeds
Abstract: Losses of agroindustry are generally wet products that must be dried to posterior use and storage. In order to optimize drying processes, the study of isotherms and thermodynamic properties become essential to understand the water sorption mechanisms of agricultural products. Thus, the objective in this study was to determine and evaluate the thermodynamic properties for different equilibrium moisture contents in sunn hemp (Crotalaria spectabilis Roth) seeds, using the direct static method to obtain the experimental data. The Chung-Pfost model was used to determine the thermodynamic properties of sunn hemp seeds. In according to results, thermodynamic properties were influenced by moisture content. The water vaporization latent heat increased with the decrease in equilibrium moisture content. The sunn hemp desorption process was controlled by entropy. Gibbs free energy is negative indicating that the desorption process of sunn hemp seeds was spontaneous.
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ABRATES - Associação Brasileira de Tecnologia de Sementes
2018
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oai:scielo:S2317-153720180003002882018-10-08Thermodynamic properties for different equilibrium moisture content in sunn hemp seedsGranella,Suian JoséChrist,DivairBechlin,Taise RaquelWerncke,IvanCoelho,Silvia Renata Machado desorption of water latent heat enthalpy entropy Gibbs free energy Abstract: Losses of agroindustry are generally wet products that must be dried to posterior use and storage. In order to optimize drying processes, the study of isotherms and thermodynamic properties become essential to understand the water sorption mechanisms of agricultural products. Thus, the objective in this study was to determine and evaluate the thermodynamic properties for different equilibrium moisture contents in sunn hemp (Crotalaria spectabilis Roth) seeds, using the direct static method to obtain the experimental data. The Chung-Pfost model was used to determine the thermodynamic properties of sunn hemp seeds. In according to results, thermodynamic properties were influenced by moisture content. The water vaporization latent heat increased with the decrease in equilibrium moisture content. The sunn hemp desorption process was controlled by entropy. Gibbs free energy is negative indicating that the desorption process of sunn hemp seeds was spontaneous.info:eu-repo/semantics/openAccessABRATES - Associação Brasileira de Tecnologia de SementesJournal of Seed Science v.40 n.3 20182018-09-01info:eu-repo/semantics/articletext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S2317-15372018000300288en10.1590/2317-1545v40n3188518 |
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Granella,Suian José Christ,Divair Bechlin,Taise Raquel Werncke,Ivan Coelho,Silvia Renata Machado |
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Granella,Suian José Christ,Divair Bechlin,Taise Raquel Werncke,Ivan Coelho,Silvia Renata Machado Thermodynamic properties for different equilibrium moisture content in sunn hemp seeds |
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Granella,Suian José Christ,Divair Bechlin,Taise Raquel Werncke,Ivan Coelho,Silvia Renata Machado |
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Granella,Suian José |
title |
Thermodynamic properties for different equilibrium moisture content in sunn hemp seeds |
title_short |
Thermodynamic properties for different equilibrium moisture content in sunn hemp seeds |
title_full |
Thermodynamic properties for different equilibrium moisture content in sunn hemp seeds |
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Thermodynamic properties for different equilibrium moisture content in sunn hemp seeds |
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Thermodynamic properties for different equilibrium moisture content in sunn hemp seeds |
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thermodynamic properties for different equilibrium moisture content in sunn hemp seeds |
description |
Abstract: Losses of agroindustry are generally wet products that must be dried to posterior use and storage. In order to optimize drying processes, the study of isotherms and thermodynamic properties become essential to understand the water sorption mechanisms of agricultural products. Thus, the objective in this study was to determine and evaluate the thermodynamic properties for different equilibrium moisture contents in sunn hemp (Crotalaria spectabilis Roth) seeds, using the direct static method to obtain the experimental data. The Chung-Pfost model was used to determine the thermodynamic properties of sunn hemp seeds. In according to results, thermodynamic properties were influenced by moisture content. The water vaporization latent heat increased with the decrease in equilibrium moisture content. The sunn hemp desorption process was controlled by entropy. Gibbs free energy is negative indicating that the desorption process of sunn hemp seeds was spontaneous. |
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ABRATES - Associação Brasileira de Tecnologia de Sementes |
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2018 |
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http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2317-15372018000300288 |
work_keys_str_mv |
AT granellasuianjose thermodynamicpropertiesfordifferentequilibriummoisturecontentinsunnhempseeds AT christdivair thermodynamicpropertiesfordifferentequilibriummoisturecontentinsunnhempseeds AT bechlintaiseraquel thermodynamicpropertiesfordifferentequilibriummoisturecontentinsunnhempseeds AT wernckeivan thermodynamicpropertiesfordifferentequilibriummoisturecontentinsunnhempseeds AT coelhosilviarenatamachado thermodynamicpropertiesfordifferentequilibriummoisturecontentinsunnhempseeds |
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