1988 Fiscal Year Final Research Report Summary
Study on Method of Permeability Measurement
Project/Area Number |
62550158
|
Research Category |
Grant-in-Aid for General Scientific Research (C)
|
Allocation Type | Single-year Grants |
Research Field |
Thermal engineering
|
Research Institution | Faculty of Engineering, Fukuoka Institute of Technology |
Principal Investigator |
TANAKA Hiroshi Faculty of Engineering, Fukuoka Institute of Technology, 工学部, 教授 (50038600)
|
Project Period (FY) |
1987 – 1988
|
Keywords | Permeablity measurement / Apparent diffusion Coefficient / Transient diffusion / Optical fiber / 非定常拡散 |
Research Abstract |
There are presented two types of methods for measuring permeability of fiber assembly using an infrared hygrometer with optical fibers. These method use applied a transient water-vapor diffusion in a sample and the adjacent stationary dry air and a transient water-vapor counter-diffusion in a sample, respectively. Comparing the measured results of humidity changes at the air layer point with the numerical ones, the apparent diffusion coefficient are determined for a few sample, for example: glass fiber filter, synthetic fiber papers and non-woven fabric.
|
Research Products
(12 results)