Results 41 to 50 of about 3,557,380 (389)

Advances in understanding large-scale responses of the water cycle to climate change [PDF]

, 2020
Globally, thermodynamics explains an increase in atmospheric water vapor with warming of around 7%/°C near to the surface. In contrast, global precipitation and evaporation are constrained by the Earth's energy balance to increase at ∼2–3%/°C.
Allan, Richard P., Barlow, Mathew, Byrne, Michael P., Cherchi, Annalisa, Douville, Hervé, Fowler, Hayley J., Gan, Thian Y., Pendergrass, Angeline G., Rosenfeld, Daniel, Swann, Abigail L. S., Wilcox, Laura J., Zolina, Olga   +11 more
core   +2 more sources

Thermodynamic Cycle Concepts for High-Efficiency Power Plans. Part A: Public Power Plants 60+

Sustainability, 2019
An analysis was carried out for different thermodynamic cycles of power plants with air turbines. Variants with regeneration and different cogeneration systems were considered.
K. Kosowski, K. Tucki, M. Piwowarski, R. Stępień, O. Orynycz, W. Wlodarski, A. Bączyk   +6 more
semanticscholar   +1 more source

Linear irreversible heat engines based on the local equilibrium assumptions [PDF]

, 2015
We formulate an endoreversible finite-time Carnot cycle model based on the assumptions of local equilibrium and constant energy flux, where the efficiency and the power are expressed in terms of the thermodynamic variables of the working substance.
Izumida, Yuki, Okuda, Koji
core   +2 more sources

Review of experimental research on supercritical and transcritical thermodynamic cycles designed for heat recovery application [PDF]

, 2019
Supercritical operation is considered a main technique to achieve higher cycle efficiency in various thermodynamic systems. The present paper is a review of experimental investigations on supercritical operation considering both heat-to-upgraded heat and
De Paepe, Michel, Kosmadakis, George, Lecompte, Steven, Manolakos, Dimitris, Ntavou, Erika, Pillai, Aditya, Tchanche, Bertrand   +6 more
core   +2 more sources

Performance Optimization of Generalized Irreversible Refrigerator Based on a New Ecological Criterion

Entropy, 2013
On the basis of the exergy analysis, a performance optimization is carried out for a generalized irreversible refrigerator model, which takes into account the heat resistance, heat leakage and internal irreversibility losses.
Jie Xu, Liping Pang, Jun Wang
doaj   +1 more source

Toward the Integrated Design of Organic Rankine Cycle Power Plants: A Method for the Simultaneous Optimization of Working Fluid, Thermodynamic Cycle, and Turbine

Journal of Engineering For Gas Turbines and Power, 2019
The conventional design of organic Rankine cycle (ORC) power systems starts with the selection of the working fluid and the subsequent optimization of the corresponding thermodynamic cycle.
M. Lampe, C. D. Servi, J. Schilling, A. Bardow, P. Colonna   +4 more
semanticscholar   +1 more source

Thermodynamic Analysis on the Performance of a Low-Enthalpy Geothermal Field Using a CO₂ Supercritical Binary Cycle

Chemical Engineering Transactions, 2019
The exploitation of geothermal energy can play a significant role for providing clean and renewable energy, especially when environmentally-friendly working fluids are used for power production.
Dimitrios Chasapis, Dimitrios Misirlis, Petros A. Papadopoulos, Kostas Kleidis   +3 more
doaj   +1 more source

Performance of bioethanol and diesel fuel by thermodynamic simulation of the miller cycle in the diesel engine

Results in Engineering, 2021
The rapid growth in automotive industry and increased fuel consumption and environmental pollution, along with decrease in oil and fossil fuel resources, necessitate the adoption of new technologies to improve engine thermal efficiency and the use of ...
Ahmad Jahanbakhshi, Somayeh Karami-Boozhani, Mojtaba Yousefi, Jong Boon Ooi   +3 more
doaj   +1 more source

Alternative thermodynamic cycle for the Stirling machine [PDF]

, 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 ...
A. Romanelli
semanticscholar   +1 more source

Optimization of Schematic and Parameters of Staged Combustion Launch Vehicle Liquid Engines [PDF]

فصلنامه علوم و فناوری فضایی, 2016
The purpose of this paper is to present a genetic algorithm (as a software) to optimize engine main parameters through the application of "genetic algorithm" and also introduced the new and modified thermodynamic cycles with analysing their performance ...
Davood Ramesh, Sajad Khodadadiyan, Hasan Karimi   +2 more
doaj