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Book ChapterDOI

Study on the Dust Removal Efficiency Formula of EP with Efficiency Enhancing and Energy Saving

01 Jan 2009-pp 98-101
TL;DR: In this paper, the dust removal efficiency formula reflecting the characteristics of high voltage power supply, efficiency enhancing and energy saving and intelligent optimization control was studied based on theoretical reaching rate, operating status quo of EP and successful study and extension of HVPP facility with efficiency enhancing, energy saving, and spark setting.
Abstract: Based on theoretical reaching rate, operating status quo of EP and successful study and extension of high voltage power supply facility of EP with efficiency enhancing and energy saving, the dust removal efficiency formula reflecting the characteristics of high voltage power supply, efficiency enhancing and energy saving and intelligent optimization control was studied. It was indicated that the effective reaching rate and the dust removal efficiency were in the direct ratio to the peak and the minimum of the secondary voltage under the working manner of high efficiency and energy saving and the working manner of spark setting through the formula. The basis can be provided for the optimization and the efficiency enhancing and energy saving of high voltage power supply facilities of EP by the formula.
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Journal ArticleDOI
TL;DR: In this paper, an electrostatic precipitators (ESP) with high electric field, which does not use corona discharge, was investigated, and the collection efficiency at the electrode length of 450 mm was 77.6% at 12.5 kV when the ratio of the input power was lower than 0.33 W/(m3/s).
Abstract: In this article, an electrostatic precipitators (ESP) with high electric field, which does not use corona discharge, was investigated. The ESP had a parallel plate configuration composed of a high voltage application plate electrode and grounded plate electrode with a gap of 5 mm. The electrode length was between 150 and 450 mm. The air was flowed at the gas velocity between 0.5 and 5 m/s in the ESP by a fan. A voltage up to 12.5 kV was applied to the high voltage application electrode, whereby the electric field intensity of 25 kV/cm was generated between the electrodes. The particle concentration in the air for the particle size between 0.3 and 5 μ m was measured to calculate the collection efficiency. The collection efficiency in a conventional two-stage type ESP was also measured, and compared to the result in the ESP with high electric field. As a result, the collection efficiency at the electrode length of 450 mm was 77.6% at 12.5 kV, when the ratio of the input power was lower than 0.33 W/(m3/s), in the ESP with high electric field. On the other hand, the collection efficiency in the conventional ESP was 65.6% or 82.0% at the input power of 14.2 W/(m3/s) or 24.8 W/(m3/s). Therefore, it is revealed that the ESP with high electric field is effective for energy saving.

4 citations