The pore size characteristics are widely used in specifying and comparing filter media. Several methods of calculation have been prepared by researchers and some of these have formed the basis of well-known standards. In this paper five different methods of calculation have been compared. The experimental work has been performed on a rig fabricated in line with ASTM-F316 standard and results of careful measurements are reported. The results indicate that the values obtained by some methods are in close agreement with specification. The electron micrograph of filters revealed the random distribution of pore sizes and shapes leaving the use of some theories to question. The practicality and limitations of different methods have been discussed.
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March 1988
Research Papers
Comparison of Measurement Methods for Pore Size Evaluation of Nonwoven Filter Media
P. Gupta,
P. Gupta
Mechanical Engineering Department, Indian Institute of Technology, Delhi, India
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S. Narang
S. Narang
Mechanical Engineering Department, Indian Institute of Technology, Delhi, India
Search for other works by this author on:
S. Biswas
ITMMEC Delhi, India
P. Gupta
Mechanical Engineering Department, Indian Institute of Technology, Delhi, India
S. Narang
Mechanical Engineering Department, Indian Institute of Technology, Delhi, India
J. Energy Resour. Technol. Mar 1988, 110(1): 23-26 (4 pages)
Published Online: March 1, 1988
Article history
Received:
March 1, 1987
Revised:
August 25, 1987
Online:
October 22, 2009
Citation
Biswas, S., Gupta, P., and Narang, S. (March 1, 1988). "Comparison of Measurement Methods for Pore Size Evaluation of Nonwoven Filter Media." ASME. J. Energy Resour. Technol. March 1988; 110(1): 23–26. https://doi.org/10.1115/1.3231356
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