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Wyszukujesz frazę "silnik Stirlinga" wg kryterium: Temat


Wyświetlanie 1-2 z 2
Tytuł:
Design of dual flywheels with connecting rods for gamma-type Stirling engine
Autorzy:
Lekchaum, S.
Locharoenrat, K.
Powiązania:
https://bibliotekanauki.pl/articles/200723.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Stirling engine
Stirling cycle
flywheels
connecting rod
silnik Stirlinga
cykl Stirlinga
koła zamachowe
korbowód
Opis:
A gamma-type Stirling engine, based on a dual flywheels’ concept, was designed and fabricated. Optimized design of the engine, with connecting rods, was introduced to achieve a steady state of the Stirling engine cycle. Performances of the engine were therefore presented in terms of piston motion, inertia force, angular speed, pressure-volume diagram and temperature difference. It was found that optimum length of 45 mm from the connecting rod was able to reach the maximum output mechanical speed of 738 rpm at the maximum inertia force of 0.5 N. The engine offered thermal efficiency of 46.15% and total output power of 1.21 W under the temperature difference of 267 K. In the future, this design is expected to prove useful for applications in portable generators.
Źródło:
Bulletin of the Polish Academy of Sciences. Technical Sciences; 2018, 66, 6; 919-924
0239-7528
Pojawia się w:
Bulletin of the Polish Academy of Sciences. Technical Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
From Beale Number to Pole Placement Design of a Free Piston Stirling Engine
Autorzy:
Zare, S.
Tavakolpour-Saleh, A.
Omidvar, A.
Powiązania:
https://bibliotekanauki.pl/articles/140258.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
free-piston Stirling engine
linear dynamics
roots loci
Beale number
silnik Stirlinga z wolnym tłokiem
dynamika liniowa
linie pierwiastkowe
liczba Beale
Opis:
In this paper, pole placement-based design and analysis of a free piston Stirling engine (FPSE) is presented and compared to the well-defined Beale number design technique. First, dynamic and thermodynamic equations governing the engine system are extracted. Then, linear dynamics of the free piston Stirling engine are studied using dynamic systems theory tools such as root locus. Accordingly, the effects of variations of design parameters such as mass of pistons, stiffness of springs, and frictional damping on the locations of dominant closed-loop poles are investigated. The design procedure is thus conducted to place the dominant poles of the dynamic system at desired locations on the s-plane so that the unstable dynamics, which is the required criterion for energy generation, is achieved. Next, the closed-loop poles are selected based on a desired frequency so that a periodical system is found. Consequently, the design parameters, including mass and spring stiffness for both power and displacer pistons, are obtained. Finally, the engine power is calculated through the proposed control-based analysis and the result is compared to those of the experimental work and the Beale number approach. The outcomes of this work clearly reveal the effectiveness of the control-based design technique of FPSEs compared to the well-known approaches such as Beale number.
Źródło:
Archive of Mechanical Engineering; 2017, LXIV, 4; 499-518
0004-0738
Pojawia się w:
Archive of Mechanical Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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