Experimental Study on the Electrostatic Precipitability for the High-Alumina Fly Ash of Burning ZHUNGEER Coal in China

Qi, Liqiang; Yuan, Yong

doi:10.1109/icbbe.2008.453

Cited by 1 publication

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“…Particle resistivity is a condition of the particle in the gas stream that can alter the actual collection efficiency of an ESP design. The most economical design and operation of an ESP are obtained when the electrical resistivity of the particulate is kept within certain limits (Liqiang and Yongtao, 2008). There is no such signification research data available for the electrical properties of fly ash…”

Section: Introductionmentioning

confidence: 99%

Influence of Chemical Composition on the Electrical Resistivity of Fly Ash Generated from Indian Coal Based Thermal Power Plants

Syed¹,

Andrabi²,

Chandra³

et al. 2013

RJASET

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Electrostatic Precipitators (ESP) are control devices widely used for collection of fly ash in Indian coal based thermal power plants. The design, performance, sizing, collection and operation of ESP depend largely on the properties and quality of the coal burned and the fly ash generated in the boilers. This study presents the influence of fly ash composition on the resistivity of Indian fly ash generated from coal based power plants, which is one of the critical parameter required to make accurate predictions of ESP in terms of their collection efficiency. The fly ash electrical resistivity measurements were conducted over a wide range of temperature in both ascending and descending cycles in the range of 90 to 455ºC at 9% moisture as per IEEE-Standard 548 (1991). The earlier developed Empirical relations used for calculating fly ash electrical resistivity for western coals were modified for the calculations of electrical resistivity of Indian fly ashes and new empirical relations have been developed based on experimental results and chemical composition of fly ash samples collected from different coal based power plants in India which have different chemical composition in comparison to western coals. Results in the newly developed correlations show better agreements with experimentally determined resistivity compared to those developed by Bickelhaupt and others.

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Section: Introductionmentioning

confidence: 99%