Measurement of Electrical Conductivity for a Biomass Fire

International Journal of Molecular Sciences

Kgakgamatso Mphale¹ 

[1] Physics Department, University of Botswana, Private Bag 0022, Gaborone, Botswana

关键词: biomass;    forest fires;    flashover;    thermal ionization;    alkalis;   

DOI  :  10.3390/ijms9081416

来源: mdpi

【 摘 要 】

A controlled fire burner was constructed where various natural vegetation species could be used as fuel. The burner was equipped with thermocouples to measure fuel surface temperature and used as a cavity for microwaves with a laboratory quality 2-port vector network analyzer to determine electrical conductivity from S-parameters. Electrical conductivity for vegetation material flames is important for numerical prediction of flashover in high voltage power transmission faults research. Vegetation fires that burn under high voltage transmission lines reduce flashover voltage by increasing air electrical conductivity and temperature. Analyzer determined electrical conductivity ranged from 0.0058 - 0.0079 mho/m for a fire with a maximum temperature of 1240 K.

【 授权许可】

CC BY   
© 2008 by the authors; licensee Molecular Diversity Preservation International, Basel, Switzerland. This article is an open-access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/3.0/).