Results 51 to 60 of about 3,557,380 (389)

On the Potentials of the Integration of Pressure Gain Combustion with a Hybrid Electric Propulsion System

Aerospace, 2023
As the issue of pollutant emissions from aviation propulsion escalates, research into alternative powertrains is gaining momentum. Two promising technologies are the Hybrid Electric Propulsion System (HEPS) and Pressure Gain Combustion (PGC).
Dongsuk Kim, Majid Asli, Klaus Höschler
doaj   +1 more source

An overview on the Miller-Atkinson over-expansion thermodynamic cycle

IOP Conference Series: Materials Science and Engineering, 2019
The tightening of pollution and greenhouse gas regulations generated a change in the homologation procedure, i.e., a far more dynamic driving cycle and the testing of the vehicle in real driving conditions are now part of the type approval procedure.
M. Niculae, A. Clenci, V. Iorga-Simăn, R. Niculescu   +3 more
semanticscholar   +1 more source

POSSIBLE WAYS OF DECREASE IN EMISSIONS OF CARBON DIOXIDE GAS

Известия высших учебных заведений: Проблемы энергетики, 2018
In article possible ways of decrease in emissions of carbon dioxide gas are considered. Features of technologies of extraction of CO2 from flue gases. Foreign experience of use of CO2 is analyzed.
A. M. Gafurov, B. M. Osipov, R. Z. Gatina, N. M. Gafurov   +3 more
doaj   +1 more source

Experimental investigation of a thermally driven pumping system for a potential application with a microgrid system for rural communities

Journal of Thermal Science and Technology, 2022
Renewable energy-based microgrid systems are widely being studied as electrification methods for rural communities in developing countries. Waste heat generated by the components of the microgrid systems, such as the biogas driven generators (BDG ...
Yemanebirhan ABIRHAM, Frantisek MIKŠÍK, Kyaw THU, Takahiko MIYAZAKI   +3 more
doaj   +1 more source

Feasibility Study of the CO₂ Regenerator Parameters for Oxy-Fuel Combustion Power Cycle

Inventions, 2022
The atmosphere carbon dioxide content grows subsequently due to anthropogenic factors. It may be considerably mitigated by the development of thermal power plants with near zero emissions.
Vladimir Kindra, Ivan Komarov, Sergey Osipov, Olga Zlyvko, Igor Maksimov   +4 more
doaj   +1 more source

Quantitative analysis of the effects of acoustic neurostimulation on the neuropsychology of healthy adults

Exploration of Neuroprotective Therapy
To quantitatively analyze the effects of acoustic neurostimulation on the symptoms of depression, anxiety, stress, and sleep quality in healthy workers.
Radiance C. Bouldin, Julia R. Higdon, Jonghoon Kang   +2 more
doaj   +1 more source

Thermodynamics of an idealized hydrologic cycle [PDF]

Water Resources Research, 2012
The diurnal hydrologic cycle, a sequence of evapotranspiration, boundary layer growth, moist convection, and precipitation, is described in a thermodynamic framework, assuming an atmosphere composed solely of water. This idealized cycle is shown to be equivalent to an abbreviated version of the classical Rankine cycle where not all the water vapor is ...
Amilcare Porporato, Annalisa Molini, Annalisa Molini, Stefano Manzoni, Alexandra G. Konings, Xue Feng, Giulia Vico   +6 more
openaire   +2 more sources

Structural and Parametric Optimization of S–CO₂ Nuclear Power Plants

Entropy, 2021
The transition to the use of supercritical carbon dioxide as a working fluid for power generation units will significantly reduce the equipment′s overall dimensions while increasing fuel efficiency and environmental safety.
Nikolay Rogalev, Andrey Rogalev, Vladimir Kindra, Ivan Komarov, Olga Zlyvko   +4 more
doaj   +1 more source

A preliminary approach to the 3D construction of thermodynamic cycle based on zeotropic working fluids

Chinese Science Bulletin, 2018
Thermodynamic cycle is one of the important ways to convert energy. Improving the efficiency of thermodynamic cycle is still an important way to promote the efficient use of energy at the present stage, and it is also the efficient way to solve the ...
Weicong Xu, Li Zhao, S. Deng, Shuangjun Li   +3 more
semanticscholar   +1 more source

Second Law of Thermodynamics with Discrete Quantum Feedback Control

, 2008
A new thermodynamic inequality is derived which leads to the maximum work that can be extracted from multi-heat baths with the assistance of discrete quantum feedback control. The maximum work is determined by the free-energy difference and a generalized
A. S. Holevo, G. J. Milburn, J. C. Maxwell, M. A. Nielsen, Masahito Ueda, R. Landauer, T. M. Cover, Takahiro Sagawa   +7 more
core   +1 more source