Results 1 to 10 of about 64,102 (238)

Endoreversible Stirling Cycles: Plasma Engines at Maximal Power [PDF]

Entropy
Endoreversible engine cycles are a cornerstone of finite-time thermodynamics. We show that endoreversible Stirling engines operating with a one-component plasma as a working medium run at maximal power output with the Curzon–Ahlborn efficiency. As a main
Gregory Behrendt, Sebastian Deffner
doaj   +8 more sources

The saturated and supercritical Stirling cycle thermodynamic heat engine cycle [PDF]

AIP Advances, 2018
On the assumption that experimentally validated tabulated thermodynamic properties of saturated fluids published by the National Institute of Standards and Technology are accurate, a theoretical thermodynamic cycle can be demonstrated that produces a net-
Matthew David Marko
doaj   +3 more sources

Stirling Numbers of Forests and Cycles [PDF]

The Electronic Journal of Combinatorics, 2013
For a graph $G$ and a positive integer $k$, the graphical Stirling number $S(G,k)$ is the number of partitions of the vertex set of $G$ into $k$ non-empty independent sets. Equivalently it is the number of proper colorings of $G$ that use exactly $k$ colors, with two colorings identified if they differ only on the names of the colors.
David Galvin, Do Trong Thanh
openalex   +4 more sources

Studies on Stirling Power Cycles- A Review

Journal of Advanced Mechanical Sciences, 2022
The Stirling power cycle consists of 2 isothermal processes (heat supply and heat removal processes) and two isochoric processes (compression and expansion processes).
S. Gokulsai
doaj   +3 more sources

Idealization of The Real Stirling Cycle

Journal of Middle European Construction and Design of Cars, 2016
The paper presents a potential idealization of the real Stirling cycle. This idealization is performed by modifying the piston movement corresponding to the ideal Stirling cycle.
Červenka Libor
doaj   +2 more sources

Stirling permutations, cycle structures of permutations and perfect matchings [PDF]

The Electronic Journal of Combinatorics, 2015
In this paper we provide constructive proofs that the following three statistics are equidistributed: the number of ascent plateaus of Stirling permutations of order $n$, a weighted variant of the number of excedances in permutations of length $n$ and the number of blocks with even maximal elements in perfect matchings of the set $\{1,2,3,\ldots,2n\}$.
Shi-Mei Ma, Yeong‐Nan Yeh
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Evaluation of the Environmental Sustainability of a Stirling Cycle-Based Heat Pump Using LCA

Energies, 2020
Heat pumps are increasingly seen as efficient and cost-effective heating systems also in industrial applications. They can drastically reduce the carbon footprint of heating by utilizing waste heat and renewable electricity.
Umara Khan, Ron Zevenhoven, Tor-Martin Tveit   +2 more
doaj   +3 more sources

Alternative thermodynamic cycle for the Stirling machine [PDF]

American Journal of Physics, 2017
We develop an alternative thermodynamic cycle for the Stirling machine, where the polytropic process plays a central role. Analytical expressions for pressure and temperatures of the working gas are obtained as a function of the volume and the parameter that characterizes the polytropic process.
A. Romanelli
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Development of a theoretical decoupled Stirling cycle engine

Simulation Modelling Practice and Theory, 2011
Abstract The Stirling cycle engine is gaining increasing attention in the current energy market as a clean, quiet and versatile prime mover for use in such situations as solar thermal generation, micro-cogeneration and other micro-distributed generation situations. A theoretical Stirling cycle engine model is developed. Using a theoretical decoupled
Barry Cullen, Jim McGovern
exaly   +4 more sources

Analytical model for Stirling cycle machine design [PDF]

Energy Conversion and Management, 2010
In order to study further the promising free piston Stirling engine architecture, there is a need of an analytical thermodynamic model which could be used in a dynamical analysis for preliminary design. To aim at more realistic values, the models have to take into account the heat losses and irreversibilities on the engine.
Fabien Formosa, Ghislain Despesse
openalex   +5 more sources