We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Determining the Complex Permittivity of Oil Palm Empty Fruit Bunch Fibre Material by Open-ended Coaxial Probe Technique for Microwave Applications.
- Authors
Abdalhadi, Daw Mohammad; Abbas, Zulkifly; Ahmad, Ahmad Fahad; Ibrahim, Nor Azowa
- Abstract
A material description was established for oil palm empty fruit bunch (OPEFB) fibre waste for microwave absorber applications by determining its dielectric properties with respect to fibre size and frequency. The proposed OPEFB material was studied at frequencies from 1 to 4 GHz. The study was conducted using the open-ended coaxial probe (OECP) HP85071C technique. The effect of microwave frequency on complex permittivity properties for powdered OPEFB and compressed OPEFB with different particle sizes (100, 200, 300, 400, and 500 μm) were investigated. Results showed that the microwave frequency and particle size significantly influenced the complex permittivity (real and imaginary) properties of the samples. Moreover, the complex permittivity decreased as the powder fibre size increased. The complex permittivity of the smallest and largest powder fibre sizes (100 and 500 μm) were (2.050 - j 0.197) and (1.934 - j 0.137), respectively; and the complex permittivity of the smallest and largest compressed OPEFB fibre sizes (100 and 500 μm) were (3.799 - j0.603) and (3.326 - j0.486), respectively. The compressed OPEFB complex permittivity was higher than that of the OPEFB powder.
- Subjects
PALM oil; PALM products; MICROWAVE heating; WOOD; COAXIAL waveguides; ELECTROMAGNETIC interference; PERMEABILITY
- Publication
BioResources, 2017, Vol 12, Issue 2, p3976
- ISSN
1930-2126
- Publication type
Article
- DOI
10.15376/biores.12.2.3976-3991