Results 11 to 20 of about 554,979 (316)

Diesel injector dynamic modelling and estimation of injection parameters from impact response part 2: prediction of injection parameters from monitored vibration [PDF]

open access: yes, 1996
Part 2 of this paper presents the experimental and analytical procedures used in the estimation of injection parameters from monitored vibration. The mechanical and flow‐induced sources of vibration in a fuel injector are detailed and the features of the
Gu, Fengshou, Rao, K K, Ball, Andrew
core   +1 more source

Studies on temporal and spatial variation characteristics of spray boundary in diesel spray (Effects of injection pressure on spray vortex formation)

open access: yesNihon Kikai Gakkai ronbunshu, 2021
In recent years, with the depletion of fossil resources, there is a need to further improve the thermal efficiency of diesel engines. In order to improve the thermal efficiency of diesel engines, it is necessary to realize rapid combustion.
Kakeru NANJO   +3 more
doaj   +1 more source

Experimental and numerical model of anisotropic permeability and CO2 injectivity of coal during CO2 enhanced coalbed methane recovery process

open access: yesFrontiers in Earth Science, 2023
Guaranteeing CO2 injectivity has been the precondition for implementing the CO2-enhanced coalbed methane recovery (CO2-ECBM), however, it dramatically decreases during the CO2 injection process because it is influenced by the dynamic change of the ...
Qinghe Niu   +16 more
doaj   +1 more source

Influence of tectonic fractures on CO2 storage and enhanced CH4 recovery

open access: yesMeitan xuebao, 2023
In the process of CO2-ECBM, the tectonic fractures developed in the coal may become the preferential channels of gas-water seepage under the impact of injection pressure, and then influence the recovery of coalbed methane (CBM) and CO2 storage.
Ziliang WANG   +4 more
doaj   +1 more source

Analysis of the causes of rising water content in the late stage of poly-drive in western block III of Area B and study of adjustment methods [PDF]

open access: yesE3S Web of Conferences, 2022
Seizing the main contradiction of fast water-bearing rebound in western block III, analyzing the reasons of fast water-bearing rebound in response to the contradiction, meanwhile, by understanding the mechanism of polymer oil drive and combining the ...
Wu Qiong
doaj   +1 more source

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

open access: yes, 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   +11 more
core   +1 more source

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

open access: yesEnergies, 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

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

open access: yesYantu 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

Diesel injector dynamic modelling and estimation of injection parameters from impact response Part 1: modelling and analysis of injector impacts [PDF]

open access: yes, 1996
Part 1 of this paper presents the development and validation of a detailed dynamic model for the needle motion of a common hole‐type diesel fuel injector as used in a direct injection diesel engine.
Gu, Fengshou, Ball, Andrew
core   +1 more source

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

open access: yesArab 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   +3 more
doaj   +1 more source

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