Open Access

ARTICLE

The Elaboration of Flow Resistance Model for a Bag Filter Serving a 200 MW Power Plant

by Yukun Lv, Jiaxi Yang

North China Electric Power University, Baoding, 071003, China

* Corresponding Author: Jiaxi Yang. Email:

(This article belongs to the Special Issue: Fluid Structure Interaction in Various Engineering Field)

Fluid Dynamics & Materials Processing 2020, 16(4), 827-835. https://doi.org/10.32604/fdmp.2020.010343

Received 27 February 2020; Accepted 23 June 2020; Issue published 11 August 2020

Abstract

On the basis of a macro flow resistance method and the Darcy Theory, a mathematical model is elaborated to characterize the flow resistance of a bag filter serving a coal-fired power plant. The development of the theoretical model is supported through acquisition of relevant data obtained by scanning the micro structure of the bag filter by means of an electron microscope. The influence of the running time and boiler load on the flow resistance and the impact of the flow resistance on the efficiency of the induced draft fan are analyzed by comparing the results of on-site operation tests. We show that the initial operation time and the table operation time are linearly related to the flow resistance of the bag filter; with the increase of boiler load, the flow resistance of the bag filter rises approximately as a quadratic function; with the rise of resistance, the power consumption of the induced draft fan increases while the efficiency of the induced draft fan decreases.

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Keywords

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