Results 21 to 30 of about 3,569,482 (237)

Numerical study of heat injection CO2 to increase CH4 production based on gas-water two-phase flow

Meitan kexue jishu
The technology of CO2-enhanced coalbed methane (CO2-ECBM) can reduce greenhouse gas emissions, and has the function of clean energy production and environmental protection.
Linfeng ZHANG, Yanguo YANG, Yongliang MU, Nan FAN, Kang LIU, Wenjun YAO   +5 more
doaj   +1 more source

Effect of Injection Site on Fault Activation and Seismicity during Hydraulic Fracturing

Energies, 2017
Hydraulic fracturing is a key technology to stimulate oil and gas wells to increase production in shale reservoirs with low permeability. Generally, the stimulated reservoir volume is performed based on pre-existing natural fractures (NF).
Zhaohui Chong, Xuehua Li, Xiangyu Chen
doaj   +1 more source

Acoustic monitoring of engine fuel injection based on adaptive filtering techniques [PDF]

, 2010
Diesel engines injection process is essential for optimum operation to maintain the design power and torque requirements and to satisfy stricter emissions legislations. In general this process is highly dependent upon the injection pump and fuel injector
Gu, Fengshou, A. Starr, Ball, Andrew, Ball, A. D., Starr, Andrew G., Albarbar, A., Gu, F., A.D. Ball, A. Albarbar, Starr, A., F. Gu, Ball, A.D.   +11 more
core   +1 more source

Experimental study on effect of multi-stage stress variations on permeability and pore structure of sandstone

Yantu gongcheng xuebao, 2018
The variations of reservoir stress caused by the multi-stage and discontinuous nature of the process in the CO2 geological storage, leading to the change of permeability and pore structure of the rock, have a direct impact on CO2 injection and storage ...
MI Zhao-xu 1, WANG Fu-gang 1, SHI Na 2, YU Jing-zong 3, SUN Zhao-jun 1
doaj   +1 more source

MODIFICATION AND PERFORMANCE OF DEVICE FOR TESTING THE DIESEL ENGINE INJECTOR [PDF]

Arab Universities Journal of Agricultural Sciences, 2018
iesel engine, but most of it is operating manually, maintenance and repair centers mostly have used the manually device which depended on the hand of operator to operate it therefore there are inaccuracies in tests.
Mayada Abdel Razek, M. Moustafa, M Baiomy, A. Abdel Galil   +3 more
doaj   +1 more source

Effect of diesel injection pressure for enhancing combustion and reducing mechanical vibration and noise emissions in a non-road diesel engine

European Mechanical Science, 2023
In this study, the combustion, performance, emissions, noise, and vibration characteristics of a single-cylinder, four-stroke, air-cooled diesel engine used for non-road purposes were investigated by controlling different injection pressures with a ...
Nurullah Gültekin, Halil Erdi Gülcan, Murat Ciniviz   +2 more
doaj   +1 more source

A Numerical Investigation of the Effects of the Fuel Injection Pressure and Nozzle Hole Diameter on Natural Gas–Diesel Dual-Fuel Combustion Characteristics

Energies
Natural gas–diesel dual-fuel (NDDF) engines can reduce harmful emissions while maintaining diesel-like efficiency. However, under low-load conditions, they suffer from high methane (CH4) emissions, reduced combustion stability, and lower thermal ...
Murat Durmaz, Selma Ergin
doaj   +1 more source

Experimental Study on Influence of Nozzle Spiral Inclination Angle on Atomization Performance

Meikuang Anquan, 2020
Through experimental research to understand the atomization performance of the spiral nozzle, the performance parameters such as spray cone angle, nozzle flow rate, spray range, particle velocity, and average diameter of droplets (SMD) were studied by ...
MIAO Dongyan, GAO Guijun
doaj   +1 more source

Effects of ambient and injection conditions on local heat transfer of impinging flame and spray to chamber wall

Nihon Kikai Gakkai ronbunshu, 2020
This study experimentally investigates the effect of the impinging spray flame on the local heat transfer to the impinging wall. The experiments were conducted using the rapid compression machine (RCM) equipped with heat flux sensors installed into ...
Jaehoon JEONG, Susumu SATO, Tsuyoshi NAGASAWA, Hidenori KOSAKA   +3 more
doaj   +1 more source

NOx Prediction Based on Cylinder Pressure Measurement for Engine Emission Monitoring [PDF]

, 2011
Meeting European NOx emission standards is one of the biggest challenges facing automotive industries. The available technologies to measure NOx emission are dependent on measurement of different NOx species.
Gu, Fengshou, Ball, Andrew, Zhang, Cuiping, Tesfa, Belachew, Mishra, Rakesh   +4 more
core   +5 more sources