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Wyszukujesz frazę "Jankowska, M. A." wg kryterium: Wszystkie pola


Wyświetlanie 1-2 z 2
Tytuł:
Analysis of thermodynamical parameters of combustion engine working cycle
Autorzy:
Siemińska - Jankowska, B.
Ambrozik, A.
Jankowski, A.
Ślęzak, M.
Powiązania:
https://bibliotekanauki.pl/articles/246372.pdf
Data publikacji:
2007
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
combustion engine
engine thermodynamics
engine working cycle
Opis:
Thermodynamics systems may be classified as isolated, closed, or open based on the possible transfer of mass and energy across the system boundaries. An isolated system is one that is not influenced in any way by the surroundings. This means that no energy in the form of heat or work may cross the boundary of the system. In addition, no mass may cross the boundary of the system. A thermodynamic system is defined as a quantity of matter of fixed mass and identity upon which attention is focused for study. A closed system has no transfer of mass with its surroundings, but may have a transfer of energy (either heat or work) with its surroundings. An open system is one that may have a transfer of both mass and energy with its surroundings. Described system being an object of the paper is an open system for some phenomena. An object the paper is the thermodynamical analysis of the filling process of the cylinder which occurs in calculated period from the percussion cap of the position the piston at TDC to it position at BDC, at constant average value of the pressure in the cylinder. During durations of the filling process of the cylinder, dirt of the working charge combustion products are not taken into account. One accepts that the quantity of the working charge in the established point placed on the compression line by piston BDC is equal quantity of the working charge in the end point of the filling process, answering to the start point of the real compression process. The state of the working charge in cylinder described is four parameters: a pressure, a temperature, quantity moles of the working charge and its volume. For appointment those parameters, earlier worked out dependences are put-upon.
Źródło:
Journal of KONES; 2007, 14, 3; 563-572
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Novel method appointing of the effective heat release coefficient during combustion process based on real indicator diagram
Autorzy:
Jankowski, A.
Ambrozik, A.
Jankowska-Sieminska, B.
Ślęzak, M.
Powiązania:
https://bibliotekanauki.pl/articles/244287.pdf
Data publikacji:
2007
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
combustion engine
working cycle
thermodynamics
indicator diagram
heat release
Opis:
An object of the paper is a novel method of effective heat release coefficient appointing during combustion process of the based on the real indicator diagram. The process quality of the heat release during process of combustion is evaluated by value of the effective heat release coefficient. Accepted assumptions at appointing effective coefficient of heat release refer to acceptable that thermodynamical parameters of the working charge according to points of the real indicator diagram and the computational diagram are such the same, the maximum pressure of real working cycle of the engine is equal to the pressure of the computational cycle, work of the working charge performed in period from point of closing of the inlet valve to point of the beginning of the exhaust process are for both considered working cycles equal, heat values of the carried to the real and computational cycle are such the same. The method of appointing of the self-ignition delay period is presented in the paper, using to this end intersection point of two graphs of temperature course of the working charge prepared for the first phase of combustion process. Other methods appointing characteristics is suggested in paper basing on the real indicator diagram. The graphic illustration of the preparing method of characteristics of the relative quantity of the heat release during combustion process is illustrated in paper.
Źródło:
Journal of KONES; 2007, 14, 4; 133-142
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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