Results 1 to 10 of about 3,631,969 (388)

The saturated and supercritical Stirling cycle thermodynamic heat engine cycle

open access: yesAIP 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   +2 more sources

Thermodynamic Analysis of Binary and Trinary Power Cycles Fueled with Methane–Hydrogen Blends

open access: yesInventions, 2022
The development of hydrogen energetics is a possible way to reduce emissions of harmful substances into the atmosphere in the production of electricity.
Vladimir Kindra   +4 more
doaj   +1 more source

Analysis of the Thermodynamic Characteristics of a Hyper-Compressor through Numerical Simulation and Experimental Investigation

open access: yesApplied Sciences, 2023
Hyper-compressors play an important role in polymer production. However, due to the extremely high pressure and complex geometries, it is difficult to monitor and calculate the thermodynamic characteristics and pressure pulsation.
Lanlan Yang, Xiaohan Jia, Xueyuan Peng
doaj   +1 more source

A review on Thermodynamics in Water Cycle with Emphasizing on Entropy and Maximum Entropy Production Principle [PDF]

open access: yesعلوم و مهندسی آب و فاضلاب, 2022
Hydrological cycle is directed into thermodynamic non-equilibrium state and maximum entropy production through thermodynamic processes. Therefore, it is possible to understand and describe hydrological cycle through computation of entropy production rate
Diba Ghonchepour, Abdolreza Bahremand
doaj   +1 more source

Definition of the Thermodynamic Cycle of a Biomass-Fueled Internal Combustion Engine

open access: yesEnergies, 2023
Climate change and the depletion of fossil fuels make it urgent to find an alternative to oil-based fuels, especially in machines powered by internal combustion engines.
Gonzalo Suanes   +2 more
doaj   +1 more source

Improving the efficiency of aviation turbofan engines by using an intercooler and a recuperative heat exchanger

open access: yesВестник Самарского университета: Аэрокосмическая техника, технологии и машиностроение, 2020
Continuous improvement of fuel efficiency of aircraft engines is the main global trend in modern engine construction. To date, aviation gas turbine engines have reached a high degree of thermodynamic and design-and technology perfection.
H. Omar   +2 more
doaj   +1 more source

Performance Simulation of the Active Magnetic Regenerator under a Pulsed Magnetic Field

open access: yesEnergies, 2022
Magnetic refrigeration is acknowledged as a potential substitute for the conventional vapor-compression refrigeration technology, owing to its high efficiency and environmental friendliness.
Limei Shen   +5 more
doaj   +1 more source

New Supercritical Parameter Coal-Fired Power Generation System Structure Design Technology

open access: yes发电技术, 2019
According to the basic principle of the irreversible thermodynamic cycle value, the irreversible process of the thermodynamic cycle system was analyzed.
Jinfu YANG   +4 more
doaj   +1 more source

Investigation of a Thermal Power Pumping cycle system using alternative working fluids

open access: yesInternational Journal of Sustainable Energy, 2022
This paper presents a comparative analysis of the potential working fluids for a promising thermodynamic cycle (Thermal Power Pump cycle) for the utilisation of low-grade heat.
Y. T. Abirham   +3 more
doaj   +1 more source

Quantum thermodynamic Carnot and Otto-like cycles for a two-level system [PDF]

open access: yes, 2007
From the thermodynamic equilibrium properties of a two-level system with variable energy-level gap $\Delta$, and a careful distinction between the Gibbs relation $dE = T dS + (E/\Delta) d\Delta$ and the energy balance equation $dE = \delta Q^\leftarrow -
Allahverdyan A. E.   +5 more
core   +2 more sources

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