Control of the drying process of grass hay production in a barn

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43210%2F99%3A22700007" target="_blank" >RIV/62156489:43210/99:22700007 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Control of the drying process of grass hay production in a barn
Original language description
Good quality hay production in barns requires automation of farm operations. The paper presents control algorithms for near ambient air drying of the fresh grass Festuca pratensis on grates. The depth of layer of the material stored was 1.3 m. No moisture condensation appeared during drying tests. Major factors controlling the drying process through fan operation on/off, i.e. near ambient air temperature, relative air humidity, temperature of the material stored and its moisture content measured as bioimpedance, were continuously tested in real time. Another control variable was equilibrium moisture content of the grass hay, presented in graphs as water sorption isotherms. The predeterminated maximum temperature of forage in a barn was 37°C.
Czech name
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Czech description
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Project
<a href="/en/project/EP7315" target="_blank" >EP7315: Backgrounds for the Czech branch standard "The final drying of forage and hay storing", sorption and calorific properties of fibre materials</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
1999
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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