Results 41 to 50 of about 20,612 (169)

Anomalous Solute Transport in a Cylindrical Two-Zone Medium with Fractal Structure

open access: yesApplied Sciences, 2020
In this paper, a problem of anomalous solute transport in a coaxial cylindrical two-zone porous medium with fractal structure is posed and numerically solved.
Bakhtiyor Khuzhayorov   +3 more
doaj   +1 more source

Rotordynamic Analysis of the AM600 Turbine-Generator Shaftline

open access: yesEnergies, 2018
The AM600 represents the conceptual design and layout of a Nuclear Power Plant Turbine Island intended to address challenges associated with emerging markets interested in nuclear power.
Tshimangadzo Mudau, Robert Murray Field
doaj   +1 more source

Effects of Injection Timing on Combustion and Emission Performance of Dual-Fuel Diesel Engine under Low to Medium Load Conditions

open access: yesEnergies, 2019
A throttle can be installed on the intake pipe of a natural gas (NG)/diesel dual-fuel engine to control the excess air ratio of the air-fuel mixture by adjusting the air intake.
Hua Zhou   +4 more
doaj   +1 more source

Research on the Impact of Blending Dissociated Methanol Gas on the Performance and Emissions of Marine Medium-Speed Methanol Engines

open access: yesJournal of Marine Science and Engineering
This study conducts a detailed analysis of the mixed combustion of dissociated methanol gas (DMG) and methanol in a marine medium-speed methanol engine through numerical simulation methods.
Xiaoyu Liu   +6 more
doaj   +1 more source

Research on Oil Recovery Technology of Graded Pressure Subsurface Pump

open access: yesShiyou jixie, 2019
CO2 flooding in low-permeability reservoirs can significantly increase oil recovery. However, owing to the injection of CO2, the gas content in the production medium is increased, resulting in a decrease in the pump efficiency.
Zhi Qingong
doaj  

Experimental and Mechanistic Study of Multi‐Stage Thermally Coupled Combustion of Trace Diesel and Natural Gas Under Wide Load Range

open access: yesThe Journal of Engineering
In light of the ‘dual carbon’ policy and the increasing need for clean energy applications, enhancing the combustion efficiency and emission management of heavy‐duty natural gas engines has emerged as a critical issue necessitating immediate advancements.
Bo Wu, Qiong Xia, Yan Qu, Shan Jiang
doaj   +1 more source

Determining the Idle Mode of the Last Stages of Powerful Steam Turbines for Wet Steam Area [PDF]

open access: yesProblems of the Regional Energetics
Increasingly, low-capacity electricity generating installations using renewable energy sources are becoming widespread. They bring imbalance to the energy system. Frequency control is carried out using powerful steam turbines.
Senetskaya D.O., Senetskyi A.V.
doaj   +1 more source

The effects of hydrous ethanol gasoline on combustion and emission characteristics of a port injection gasoline engine

open access: yesCase Studies in Thermal Engineering, 2015
Comparative experiments were conducted on a port injection gasoline engine fueled with hydrous ethanol gasoline (E10W), ethanol gasoline (E10) and pure gasoline (E0).
Xiaochen Wang   +4 more
doaj   +1 more source

Properties of chicken manure pyrolysis bio-oil blended with diesel and its combustion characteristics in RCEM, Rapid Compression and Expansion Machine

open access: yesAIMS Energy, 2014
Bio-oil (bio-oil) was produced from chicken manure in a pilot-scale pyrolysis facility. The raw bio-oil had a very high viscosity and sediments which made direct application to diesel engines difficult.
Sunbong Lee, Shaku Tei, Kunio Yoshikawa
doaj   +1 more source

VORTEX ELEMENT METHOD SIMULATION OF FLOW AROUND BODIES USING CLOSED VORTEX LOOPS

open access: yesНаучный вестник МГТУ ГА, 2016
New modification of the vortex element method which uses closed vortex loop to calculate the incompressible 3D-flow around bodies by flow of an incompressible medium and determining the unsteady hydrodynamic loads is considered. An original algorithm for
S. A. Dergachev, G. A. Shcheglov
doaj  

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