Quality Assessment of Nonwoven Air Filters used in Fertilizer Factories.

Document Type : Research Studies

Authors

1 Professor of Textile Engineering Department., Faculty of Engineering., el-Mansoura University., Mansoura., Egypt.

2 Professor of Textile Engineering Department., Faculty of Engineering., Alexandria University.

3 Associate Professor., Textile Engineering Department., Faculty of Engineering., El-Mansoura University., Mansoura., Egypt.

4 Assistant Professor., Mechanical Power Engineering Department., Faculty of Engineering., Zagazig University.

Abstract

Two experimental techniques used to evaluate fabric filtration efficiency.
Gas filtration apparatus and another apparatus used optical techniques based on laser doppler velocimeter are constructed. The filtration efficiency have been measured for a wide varity of non-woven filter fabrics. Excellent agreement has been found between the two techniques. The necessary performance characteristics of air filter fabrics could be selected and arranged carefully in decreasing order of importance.
In this paper several methods are used to assess the quality of some nonwoven fabrics as air filters similar to those filters used in the fertilizer factory. Complex evaluation of quality methods have been applied to determine the best filter which can be used in fertilizer factories. Quality assessment methods such as arithmetic mean, geometric mean, harmonic mean, exponential mean, polygon area, guality number and generalized desirability function can be used for assessing the quality ranking of air filter fabrics accurately.

Main Subjects