scholarly journals Effect of Ammonia Injection on Fabric Filter Pressure Drop

1991 ◽  
Vol 41 (11) ◽  
pp. 1523-1527 ◽  
Author(s):  
W. Humphries ◽  
R. Beck ◽  
A. Lowe
Keyword(s):  
Pressure Drop ◽  
Fabric Filter ◽  
Ammonia Injection

Effect of phosphate compound on the reduction of the pressure drop of laboratory-scale fabric filter

2020 ◽  
pp. 1-8
Author(s):  
Shigetoshi Takahashi ◽  
In-Hee Hwang ◽  
Takayuki Matsuo ◽  
Yasumasa Tojo ◽  
Toshihiko Matsuto
Keyword(s):  
Pressure Drop ◽  
Laboratory Scale ◽  
Fabric Filter ◽  
Phosphate Compound

Fabric Filter Performance of Helicopter Inlet Barrier Filters

2012 ◽  
Vol 57 (3) ◽  
pp. 1-13 ◽  
Author(s):  
Nicholas Bojdo ◽  
Antonio Filippone
Keyword(s):  
Pressure Drop ◽  
Pressure Loss ◽  
Separation Efficiency ◽  
Engine Performance ◽  
Woven Fabric ◽  
Additional Restriction ◽  
Transient Pressure ◽  
Temporal Separation ◽  
Fabric Filter ◽  
Filter Performance

An inlet barrier filter system is integrated into the intake of a helicopter to perform the task of removing potentially harmful particles from engine-bound air. While performing a vital duty in the prolonging of engine life, their use may incur a loss of engine performance as a result of the pressure loss that is synonymous with air passing through a porous barrier. Furthermore, as particles collect on the filter they pose additional restriction to the flow of air, causing the pressure drop to increase over time. It is the objective of the present work to propose a low-order model to predict this transient pressure loss, in order that the performance of helicopters operating with inlet barrier filters may be analyzed. The contribution includes a model to predict the temporal separation efficiency of a woven fabric filter and the temporal change in pressure drop due to the buildup of particles on the filter.

Theory for pressure drop in a pulse-jet cleaned fabric filter

1980 ◽  
Vol 14 (7) ◽  
pp. 845-852 ◽  
Author(s):  
David Leith ◽  
Michael J. Ellenbecker
Keyword(s):  
Pressure Drop ◽  
Fabric Filter ◽  
Pulse Jet

scholarly journals Effect of Surface Condition of Fabric Filter on Pressure Drop Evolution in Repeated Pulse-jet Cleaning

2008 ◽  
Vol 45 (1) ◽  
pp. 4-11
Author(s):  
Yuping Yao ◽  
Masashi Wada ◽  
Ning Mao ◽  
Hidehiro Kamiya ◽  
Chikao Kanaoka
Keyword(s):  
Pressure Drop ◽  
Surface Condition ◽  
Fabric Filter ◽  
Effect Of Surface ◽  
Pulse Jet

Fluid Dynamics Study of the Influence of Direction of the Gas Flow in Fabric Filter

2010 ◽  
Vol 660-661 ◽  
pp. 520-524 ◽  
Author(s):  
Sandra Mara Santana Rocha ◽  
Luiz Gustavo Martins Vieira ◽  
M.L. Aguiar ◽  
João Jorge Ribeiro Damasceno
Keyword(s):  
Fluid Dynamics ◽  
Pressure Drop ◽  
Gas Flow ◽  
High Efficiency ◽  
Fluid Dynamic ◽  
Particulate Material ◽  
Dynamic Simulations ◽  
Environmental Laws ◽  
Fabric Filter ◽  
Operational Costs

The new environmental laws, as well as the search for technologies of accuracy production, have leaded companies to search for more and more efficient equipment. Regarding the emission of particulate material, the fabric filter is the most used equipment in the industry, for presenting a high efficiency and low operational costs, essential in any project of this type. In the search for a more efficient and economic filtering operation, this work studied, by techniques of CFD, the modification of the traditional way of feeding a filtering box (usually accomplished by the side of the system) by another in which the feeding was accomplished through the bottom of the equipment, in order to review the distribution of volumetric outflows in the bags and pressure drop. The fluid dynamic simulations had shown that the feeding fluid - through the bottom of the filtering box - provides an inferior operational pressure drop and a better distribution of fluids between the bags.

Effect of Filter Aids on Pressure Drop and Permeability of Two Different Filter Media

2015 ◽  
Vol 1125 ◽  
pp. 245-249 ◽  
Author(s):  
Andenan Nurnadia ◽  
M. Rashid ◽  
S. Hajar ◽  
M.R. Ammar
Keyword(s):  
Pressure Drop ◽  
Flue Gas ◽  
Lower Pressure ◽  
Filter Media ◽  
Gas Cleaning ◽  
Fabric Filter ◽  
Filtration System ◽  
Study Results ◽  
Different Types ◽  
Filter Aids

Abstract. A study on the effect of a newly formulated filter aids onto two different types filter media that are teflon and Ryton was carried out in a laboratory scale filtration system. The filter aids material is a combination of PrekotTM and activated carbon which are commonly used as flue gas cleaning agent respectively. The effect of the filter aids of various combination on pressure drop and permeability across the two filter media under different filtration velocities was investigated in this study. Results showed that ryton presents a lower pressure drop under various combinations of filter aids for different filtration velocities compared to teflon. A lower pressure drop across the fabric filter resulted a higher permeability property of ryton which allows higher volumetric air flow rates passing through it compared to teflon filter. The study suggests that the addition of PrekotTM in the formulation of filter aids significantly affect both pressure drop and permeability of the filter media

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