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Wyszukujesz frazę "silage" wg kryterium: Temat


Wyświetlanie 1-5 z 5
Tytuł:
Analytical model of foil consumption for cylindrical bale wrapping
Autorzy:
Stępniewski, A.
Nowak, J.
Stankiewicz, A.
Powiązania:
https://bibliotekanauki.pl/articles/410936.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Oddział w Lublinie PAN
Tematy:
baled silage
stretch foil consumption
simulation model
Opis:
The work presents an algorithm for the calculation of the consumption of stretch foil used to wrap cylindrical bales of fodder in order to isolate the fodder from the air and other external factors. Mechanical properties of the foil, its arbitrary dimensions and any overlapping width of subsequent wrapped foil layers ware taken into account. A simulation program was written that allows to compute the number of foil layers in the bale lateral surface as a function of the width of the foil, the angle of the bale's rotation around its axis and the number of wrappings. The computer program contains graphical module which allows visualization of geometry of the distribution of subsequent foil strips and the arrangement of foil layer in a bale cross-section. The length and surface area of the foil taken from the roll are computed for different variants of the wrapping process. The computational example is presented for two geometrically different ways of wrapping and different initial widths of the foil. Conclusions and suggestions were formulated as a result of the simulation.
Źródło:
ECONTECHMOD : An International Quarterly Journal on Economics of Technology and Modelling Processes; 2016, 5, 2; 99-104
2084-5715
Pojawia się w:
ECONTECHMOD : An International Quarterly Journal on Economics of Technology and Modelling Processes
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Modelowanie procesu tlenowego rozkładu kiszonek
Modelling of the oxygen decomposition process of silage
Autorzy:
Nowak, J.
Przystupa, W.
Bochniak, A.
Powiązania:
https://bibliotekanauki.pl/articles/291119.pdf
Data publikacji:
2006
Wydawca:
Polskie Towarzystwo Inżynierii Rolniczej
Tematy:
kiszonka
model matematyczny
infiltracja
silage
mathematical model
infiltration
Opis:
Analizowano wpływ wybranych warunków początkowych na zmiany stężenia tlenu i koncentracji drożdży w odkrytej warstwie kiszonki bezpośrednio po otwarciu silosu. W tym celu wykorzystano prosty model matematyczny tlenowego rozkładu kiszonek, który uwzględnia zmiany przestrzenno-czasowe tlenu i temperatury opisane równaniami dyfuzji.
The impact of selected initial conditions on changes in oxygen concentration and yeast concentration in open silage layer immediately after opening the silo was analyzed. A simple mathematical model of oxygen decomposition of silage was used for this purpose, taking into account spatial and temporal changes of oxygen and temperature, described by using diffusion equations.
Źródło:
Inżynieria Rolnicza; 2006, R. 10, nr 6(81), 6(81); 91-99
1429-7264
Pojawia się w:
Inżynieria Rolnicza
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
On the mathematical modelling and optimization of foil consumption for cylindrical bale wrapping
Autorzy:
Stankiewicz, A.
Stępniewski, A. A.
Nowak, J.
Powiązania:
https://bibliotekanauki.pl/articles/411265.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Oddział w Lublinie PAN
Tematy:
baled silage
cylindrical bale
mathematical model
stretch foil consumption
optimization
Opis:
Aspects of mathematical modelling of wrapping round (i.e. cylindrical) bale related to the optimization of foil consumption are considered for individual bales of agricultural materials wrapped in plastic foil. The article details the mathematical description of bale wrapping, while also identifying both some solved problems and a few open ones, which can be solved to optimize the foil consumption. Mechanical properties of the sealing foil characterized by its Poisson ratio, arbitrary foil and bale size dimensions and overlapping width of subsequent wrapped foil strips were taken into account. After providing a basic understanding of how the foil is consumed in the course of wrapping process, the mathematical model for determining the number of entire foil wrappings is determined. Next the results of mathematical analysis are used for optimization purposes. The foil consumption per unit of the bale volume index is used as a measure of foil expenditure. Two problems of foil consumption optimization are stated and solved. The formulas for computing the optimal foil width and optimal bale size dimensions are derived and estimations of the solution errors are given. Computational results are presented and analyzed for exemplary bale silage.
Źródło:
ECONTECHMOD : An International Quarterly Journal on Economics of Technology and Modelling Processes; 2016, 5, 3; 101-110
2084-5715
Pojawia się w:
ECONTECHMOD : An International Quarterly Journal on Economics of Technology and Modelling Processes
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The effect of additional foil wraps on the tightness of the packaging of bales
Autorzy:
Stępniewski, A. A.
Nowak, J.
Powiązania:
https://bibliotekanauki.pl/articles/972941.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Oddział w Lublinie PAN
Tematy:
baled silage
cylindrical bale
stretch film
tightness
mathematical model
simulation model
Opis:
The work analyzed the effect of additional wraps on the number of layers and thus the tightness of the material under protection. It was assumed that all the overlaps of each two consecutive wraps are the same, and each additional wrap causes the same increase of all the tabs. The mechanical properties of the film and its dimensions were taken into account. We have written our own simulation program that allows us to calculate the percentage of a given number of film layers on the side of the bale and the visualization of the distribution of layers in its cross-section. Calculation examples have been provided. Conclusions and suggestions resulting from the obtained simulation results have been formulated.
Źródło:
ECONTECHMOD : An International Quarterly Journal on Economics of Technology and Modelling Processes; 2018, 7, 1; 145-150
2084-5715
Pojawia się w:
ECONTECHMOD : An International Quarterly Journal on Economics of Technology and Modelling Processes
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The effect of additional foil wraps on the tightness of the packaging of bales
Autorzy:
Stępniewski, A. A.
Nowak, J.
Powiązania:
https://bibliotekanauki.pl/articles/972982.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Oddział w Lublinie PAN
Tematy:
baled silage
cylindrical bale
stretch film
tightness
mathematical model
simulation model
Opis:
The work analyzed the effect of additional wraps on the number of layers and thus the tightness of the material under protection. It was assumed that all the overlaps of each two consecutive wraps are the same, and each additional wrap causes the same increase of all the tabs. The mechanical properties of the film and its dimensions were taken into account. We have written our own simulation program that allows us to calculate the percentage of a given number of film layers on the side of the bale and the visualization of the distribution of layers in its cross-section. Calculation examples have been provided. Conclusions and suggestions resulting from the obtained simulation results have been formulated.
Źródło:
ECONTECHMOD : An International Quarterly Journal on Economics of Technology and Modelling Processes; 2018, 7, 1; 145-150
2084-5715
Pojawia się w:
ECONTECHMOD : An International Quarterly Journal on Economics of Technology and Modelling Processes
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-5 z 5

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