Experimental evaluation of steel particle conveying characteristics in a rotary vane feeder under high pressure

2019 ◽  
Vol 351 ◽  
pp. 122-133 ◽  
Author(s):  
Jian Zhao ◽  
Yiji Xu ◽  
Jianbo Li ◽  
Liexiang Han
2021 ◽  
Author(s):  
Weidong Zhou ◽  
Luopeng Li ◽  
Zizhen Wang ◽  
Xianbo Lei ◽  
Weidong Zhang ◽  
...  

2014 ◽  
Vol 962-965 ◽  
pp. 877-882
Author(s):  
Guang Qiang Cao ◽  
Yun Wang ◽  
Nan Li

Foaming deliquification is one of the most widely used technologies in the development of water production gas field. The key of this technology is the experimental optimization or develop the foaming agent suitable for gas field. With the development of a large number of high temperature and high pressure gas field, foam experimental evaluation methods used at present can not satisfy the temperature range of high temperature and high pressure evaluation requirements, in this case, used the Ross-Miles foam evaluation method as the foundation, built a new experimental evaluation method for foaming agent. Through an example, analyzes the influence of temperature and pressure on the foaming agent performance.


2022 ◽  
Vol 8 ◽  
pp. 1339-1349
Author(s):  
Weidong Zhou ◽  
Luopeng Li ◽  
Zizhen Wang ◽  
Xianbo Lei ◽  
Weidong Zhang ◽  
...  

2007 ◽  
Vol 80 (4) ◽  
pp. 1157-1170 ◽  
Author(s):  
M.J. Venter ◽  
N.J.M. Kuipers ◽  
A.B. de Haan

Author(s):  
T. J. Rosfjord

An experimental evaluation of four air-assist fuel nozzles has been conducted to determine atomization levels of coal-water mixture (CWM) fuels at operating conditions simulating a high pressure combustor. Two of the nozzles were commercial units marketed for use in atmospheric burners, while two nozzles were specially designed for CWM operation in a high pressure combustor. Sprays from all four injectors were characterized in tests performed over a range of liquid and air flowrates. Most of the tests were performed using a cellulose-gum water solution prepared to match the viscosity and drip characteristics of an available CWM. Atomization data acquired from a limited test series using the CWM were found to be properly represented by the gum solution data. High levels of atomization (SMD ∼ 10 micron) were achieved by two of the nozzles — one commercial unit and one special unit — at an assist airflow level corresponding to a nozzle air-fuel ratio between 0.6–0.8.


2021 ◽  
Vol 88 ◽  
pp. 103829
Author(s):  
Muhammad Zubair Shahid ◽  
Abdulhalim Shah Maulud ◽  
M Azmi Bustam ◽  
Humbul Suleman ◽  
Hairul Nazirah Abdul Halim ◽  
...  

Author(s):  
Steven E. Buchanan ◽  
John M. Vance

A previous paper described measurements of damping and leakage of a brush hybrid seal in a nonrotating test apparatus. In those experiments most of the damping came from the brush. This paper describes further experiments with this seal in a rotordynamic rig designed to determine if the bristles will still contribute significant damping at large amplitudes after wearing in to a line-line contact. These tests continued to show much more damping and much less leakage than a labyrinth seal of the same dimensions. The damping performance is even better after the brush is worn in. In the rotating experiments it was discovered that the brush elements also produce a surprising amount of friction torque and consequent power loss, especially at high pressure drops. During the experiments it was found that the brush friction is destabilizing to backward whirl, and that support asymmetry suppresses the instability.


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