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Wyszukujesz frazę "quantity" wg kryterium: Temat


Wyświetlanie 1-2 z 2
Tytuł:
Estimation of seagoing ships engine power based on distinguishing quantity parameter
Autorzy:
Charchalis, A.
Krefft, J.
Powiązania:
https://bibliotekanauki.pl/articles/247041.pdf
Data publikacji:
2010
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
container vessels
TEU
main engine power
quantity parameter
displacement
Opis:
The power of main engine must be determined in such a way to let the seagoing ship reaches the predicted, in the agreement with the ship owner, service speed. Significant influence on the main engine power, apart from the ship 's speed, has a geometry shape and the dimensions of the ship's hull. Begins from the general form of Admiralition's equation, it is essential to establish the specific quantity parameter for the estimation of main engine power. That parameter can be described by the displacement, DWT, LBT, TEU number, the 14 tons TEU number etc. depends on the type of the seagoing vessel. The estimation of the specified maximum continuous rating SMCR based on the quantity parameter can be practicable in the preliminary design stage because of the small number of the known design data and the importance of the design decisions made at that level. The characteristic quantity parameter to establish the main engine power of the seagoing ship has been determined using the data of the contemporary container ships in operation. The research has been done in the whole range of the container capacity in TEU, where the combustion, reciprocation engines are used to propel the seagoing vessels. The statistical and regression tools have been utilized in the data analysis process to determine the quantity parameter.
Źródło:
Journal of KONES; 2010, 17, 2; 51-56
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Operation valuation of volumetric compressors by means of dimensional analysis
Autorzy:
Rosłanowski, J.
Charchalis, A.
Powiązania:
https://bibliotekanauki.pl/articles/244479.pdf
Data publikacji:
2014
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
operation of volumetric compressor
algebraic diagram
dimensional analysis physical dimension quantity
Joul multiplied second
Opis:
The following article introduces determination method of displacement compressors basing on its work parameters, by means of dimensional analysis. Operation of displacement compressors as volumetric compressing devices, according to J. Girtler, has been treated as a new physical quantity of [J·s] dimension. Such operation can be interpreted as mechanical energy transfer, through working organ, to gas factor volume in working space of the compressor in a definite time. Operation of volumetric compressor in which energy transfer, takes place, can be an information carrier of its technical condition. It expresses transformation of energy delivered to the gas, being forced through, by the compressor. This quantity can be determined, on the basis of, algebraic diagram of dimensional analysis, constructed by S. Drobot. The above diagram allowed us to control correctness of inference rules, in relation to mathematics, used in numerical functions of volumetric compressors operation, fitted in installations. Constructional solutions of compressors depend on the kind of compressed factor, the way of cooling, size of compressor and on the kind of propulsion and destination of compressor.
Źródło:
Journal of KONES; 2014, 21, 1; 233-240
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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