Nadia hidar (10 risultati)

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Taschenbuch. Condizione: Neu. Desorption isotherms and solar convective drying kinetics of stevia | Nadia Hidar (u. a.) | Taschenbuch | 52 S. | Englisch | 2017 | LAP LAMBERT Academic Publishing | EAN 9786202070249 | Verantwortliche Person für die EU: preigu GmbH & Co. KG, Lengericher Landstr. 19, 49078 Osnabrück, mail[at]preigu[dot]de | Anbieter: preigu. …

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Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -This study aimed at investigating desorption isotherms, thermodynamic properties, drying kinetics, energy parameters, and specific energy in convective solar drying of fresh stevia leaves. Moisture desorption isotherms of stevia were determined at 30, 40 and 50°C. Thermodynamic properties such as differential enthalpy and entropy of sorption were calculated, these properties decreased with increasing moisture content. The experimental data showed that enthalpy-entropy compensation theory was applicable to the moisture sorption behavior of stevia. An indirect forced convection solar dryer was used in the thin-layer drying of stevia at air drying temperatures of 50, 60, 70 and 80 °C and air flows drying of 300 and 150 m3/ h. Increasing temperature and air flow resulted to a decrease of the total time of drying and increasing of drying rates. The drying data are used to determine the characteristic curve drying and then were fitted to six different mathematical models. 52 pp. Englisch.…

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Taschenbuch. Condizione: Neu. nach der Bestellung gedruckt Neuware - Printed after ordering - This study aimed at investigating desorption isotherms, thermodynamic properties, drying kinetics, energy parameters, and specific energy in convective solar drying of fresh stevia leaves. Moisture desorption isotherms of stevia were determined at 30, 40 and 50°C. Thermodynamic properties such as differential enthalpy and entropy of sorption were calculated, these properties decreased with increasing moisture content. The experimental data showed that enthalpy-entropy compensation theory was applicable to the moisture sorption behavior of stevia. An indirect forced convection solar dryer was used in the thin-layer drying of stevia at air drying temperatures of 50, 60, 70 and 80 °C and air flows drying of 300 and 150 m3/ h. Increasing temperature and air flow resulted to a decrease of the total time of drying and increasing of drying rates. The drying data are used to determine the characteristic curve drying and then were fitted to six different mathematical models.…

Condizione: New. Dieser Artikel ist ein Print on Demand Artikel und wird nach Ihrer Bestellung fuer Sie gedruckt. Autor/Autorin: Hidar NadiaNadia Hidar, Agro-Food Engineer, titular of a Diploma of University Studies in Biotechnology of Plants of Agricultural Interest and a Diploma of State Engineer in Industry and Food Safety at the Faculty of Sciences and Tec.…

Taschenbuch. Condizione: Neu. This item is printed on demand - Print on Demand Titel. Neuware -This study aimed at investigating desorption isotherms, thermodynamic properties, drying kinetics, energy parameters, and specific energy in convective solar drying of fresh stevia leaves. Moisture desorption isotherms of stevia were determined at 30, 40 and 50°C. Thermodynamic properties such as differential enthalpy and entropy of sorption were calculated, these properties decreased with increasing moisture content. The experimental data showed that enthalpy-entropy compensation theory was applicable to the moisture sorption behavior of stevia. An indirect forced convection solar dryer was used in the thin-layer drying of stevia at air drying temperatures of 50, 60, 70 and 80 °C and air flows drying of 300 and 150 m3/ h. Increasing temperature and air flow resulted to a decrease of the total time of drying and increasing of drying rates. The drying data are used to determine the characteristic curve drying and then were fitted to six different mathematical models.VDM Verlag, Dudweiler Landstraße 99, 66123 Saarbrücken 52 pp. Englisch.…