Results 21 to 30 of about 1,110,256 (312)

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

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

open access: yesMeikuang 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

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

High-Pressure Injection Injury of the Face: A Case Report on Presentation and Management [PDF]

open access: yes, 2020
Introduction: High-pressure injection injuries have been chronicled for decades.1 These injuries often affect distal extremities as they are most commonly involved in workplace accidents.1 However, we discuss a young male with a paint-gun injection ...
Briggs, Blake   +3 more
core  

Diffusive Shock Acceleration in Test-Particle Regime [PDF]

open access: yes, 2010
We examine the test-particle solution for diffusive shock acceleration, based on simple models for thermal leakage injection and Alfv'enic drift. The critical injection rate, \xi_c, above which the cosmic ray (CR) pressure becomes dynamically significant,
Ave   +15 more
core   +2 more sources

Investigation on Key Parameters of N2 Injection to Enhance Coal Seam Gas Drainage (N2-ECGD)

open access: yesEnergies, 2022
Practice shows that CO2/N2-ECBM is an effective technology to enhance coalbed methane. However, there are few field tests in which the technology is applied to enhance the gas drainage in underground coal mines, and the effect is uncertain. In this study,
Xin Yang   +5 more
doaj   +1 more source

Analysis of injection pressure

open access: yesIOP Conference Series: Earth and Environmental Science, 2021
Abstract In the daily production of water injection wells, oil pressure is a very important production parameter. According to the existing theory, oil pressure plus liquid column pressure is the injection pressure at the bottom of the well, but this theory is contradictory to some production phenomena.
openaire   +1 more source

LABORATORY INVESTIGATION OF THE PERFORMANCE OF TWO-COMPONENT GROUT BEHIND THE SEGMENT IN SANDY SOILS BELOW THE WATER TABLE LEVEL

open access: yesRudarsko-geološko-naftni Zbornik
The increasing use of TBMs in urban areas has heightened the significance of grouting behind tunnel segments. A key aspect of mechanized tunnelling is the application of grout for injection behind the tunnel segments (support system) to prevent ground ...
Samaneh Khodaei   +3 more
doaj   +1 more source

Time-resolved fuel injector flow characterisation based on 3D laser Doppler vibrometry [PDF]

open access: yes, 2014
In order to enable investigations of the fuel flow inside unmodified injectors, we have developed a new experimental approach to measure time-resolved vibration spectra of diesel nozzles using a three dimensional laser vibrometer.
Crua, Cyril, Heikal, Morgan R.
core   +3 more sources

Constant Pressure Injection

open access: yes, 2023
AbstractIn practical hydraulic fracturing, limited by the operating power of the syringe pump and long transportation of pipelines, it is often difficult to maintain high pumping fluid pressure to crack the reservoir rock in deep formation.
Yu Zhao, Yongfa Zhang, Pengfei He
openaire   +1 more source

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