Results 11 to 20 of about 63,168 (257)

Numerical investigation of a new combined energy cycle based on Miller cycle, Organic Rankine cycle, Stirling engine and alkaline fuel cell

open access: yesEnergy Reports, 2021
Using a combined energy cycle based on conventional and/ or clean energy sources can be a suitable option to dominate the limitations in the field of energy. Meanwhile, the select of the prime power source in such processes is a challengeable issue.
Xin Yu   +3 more
doaj   +1 more source

Life cycle cost analysis (LCCA) of Stirling-cycle-based heat pumps vs. conventional boilers

open access: yesCleaner Environmental Systems, 2023
Heat pumps (HPs) which use low temperature (waste) heat and renewable energy sources to provide high temperature heat are widely regarded as a critical technology for reducing carbon dioxide emissions in the industrial sector.
Umara Khan   +3 more
doaj   +1 more source

Stirling Numbers of Forests and Cycles [PDF]

open access: yesThe 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.
Galvin, David, Thanh, Do Trong
openaire   +3 more sources

Evaluation of the Environmental Sustainability of a Stirling Cycle-Based Heat Pump Using LCA

open access: yesEnergies, 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   +2 more
doaj   +1 more source

Free-Piston Stirling Engine Technologies and Models: A Review

open access: yesEnergies, 2021
The Stirling engine is an alternative solution to produce cleaner energy in order to achieve the reduction of the fossil fuel consumption and the CO2 emissions.
Carmela Perozziello   +2 more
doaj   +1 more source

Analytical model for Stirling cycle machine design [PDF]

open access: yesEnergy 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.
Formosa, Fabien, Despesse, G.
openaire   +3 more sources

Efficiency Reduction in Stirling Engines Resulting from Sinusoidal Motion

open access: yesEnergies, 2018
Stirling engines have a high potential to produce renewable energy due to their ability to use a wide range of sustainable heat sources, such as concentrated solar thermal power and biomass, and also due to their high theoretical efficiencies.
Salvatore Ranieri   +2 more
doaj   +1 more source

Analytical Solution of Heat Transfer Performance of Grid Regenerator in Inverse Stirling Cycle

open access: yesEnergies, 2022
The regenerator plays an extremely important role in the Stirling circulation. A grid regenerator can be used for inverse Stirling machines at room temperature due to its low flow resistance.
Yajuan Wang   +5 more
doaj   +1 more source

Stirling Numbers of Uniform Trees and Related Computational Experiments

open access: yesAlgorithms, 2023
The Stirling numbers for graphs provide a combinatorial interpretation of the number of cycle covers in a given graph. The problem of generating all cycle covers or enumerating these quantities on general graphs is computationally intractable, but recent
Amir Barghi, Daryl DeFord
doaj   +1 more source

Performance analysis of different arrangements of a new layout dish-Stirling system

open access: yesEnergy Reports, 2021
Cascade solar thermal systems provide a new direction for solar power generation. This paper focuses on the configuration optimization of a cascade solar system in which a Stirling engine array is applied. The array has multiple configurations.
Cheng Zhang   +4 more
doaj   +1 more source

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