Kontaktní a objemový ohřev bramborového škrobu v uzavřené formě

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F08%3A02147724" target="_blank" >RIV/68407700:21220/08:02147724 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Contact and volumetric heating of potato starch in a closed mould

Popis výsledku v původním jazyce

Processes of thermal treatment of starch-based materials for biologically degradable packaging products are analyzed. The contribution describes experiments on thermal forming of potato starch based water suspensions in a closed mold at elevated pressures and temperatures up to 200 0C. Liquid samples are heated in laboratory molds either by contact with the heating plates or by direct ohmic heating. The time course of temperatures as well as the sample expansion were detected by a network of thermocouples and compared with the recorded pressure inside the mold. Results show some disadvantages of the direct ohmic heating and microwave heating .The experimentally observed fact, that the radial temperatures are almost uniform, does not correspond to the idea of a radial flow of liquid core, suggested by Zitny and therefore is substituted by a model of expanding foam. The foam behavior is modeled according to the idea of expanding spherical bubble, filled by a saturated steam, Fan.

Název v anglickém jazyce

Contact and volumetric heating of potato starch in a closed mould

Popis výsledku anglicky

Processes of thermal treatment of starch-based materials for biologically degradable packaging products are analyzed. The contribution describes experiments on thermal forming of potato starch based water suspensions in a closed mold at elevated pressures and temperatures up to 200 0C. Liquid samples are heated in laboratory molds either by contact with the heating plates or by direct ohmic heating. The time course of temperatures as well as the sample expansion were detected by a network of thermocouples and compared with the recorded pressure inside the mold. Results show some disadvantages of the direct ohmic heating and microwave heating .The experimentally observed fact, that the radial temperatures are almost uniform, does not correspond to the idea of a radial flow of liquid core, suggested by Zitny and therefore is substituted by a model of expanding foam. The foam behavior is modeled according to the idea of expanding spherical bubble, filled by a saturated steam, Fan.

Druh

D - Stať ve sborníku

CEP obor

JP - Průmyslové procesy a zpracování

OECD FORD obor

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Projekt

<a href="/cs/project/GA101%2F06%2F0535" target="_blank" >GA101/06/0535: Tepelné zpracování biodegradovatelných látek</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2008

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

18th International Congress of Chemical and Process Engineering, CHISA 2008, ISBN 978-80-02-02047-9

ISBN

978-80-02-02047-9

ISSN

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e-ISSN

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Počet stran výsledku

11

Strana od-do

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Název nakladatele

Czech Society of Chemical Engineering

Místo vydání

Prague

Místo konání akce

Prague

Datum konání akce

10. 9. 2008

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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