英语翻译Experimental study of electrostatic precipitatorperforma

英语翻译
Experimental study of electrostatic precipitator
performance and comparison with existing
theoretical prediction models
S.H.Kim,K.W.Lee*
Kwangju Institute of Science and Technology,Department of Environmental Science and Engineering,
1 Oryong-dong,Puk-gu,Kwangju 500-712,South Korea
Received 1 February 1999; received in revised form 21 May 1999; accepted 2 June 1999
Abstract
A laboratory-scale single-stage electrostatic precipitator (ESP) was designed,built and
operated in a wind tunnel.As a "rst step,a series of experiments were conducted to seek the
operating conditions for increasing the particle collection e$ciency by varying basic operating
parameters including the wire-to-plate spacing,the wire radius,the air velocity,the turbulence
intensity and the applied voltage.As the diameter of the discharging wires and the wire-toplate
spacing are set smaller,the higher collection e$ciency has been obtained.In the
single-stage multiwire ESP,there exists an optimum wire-to-wire spacing which provides
maximum particle collection e$ciency.As the air velocity increases,the particle collection
e$ciency decreases.The turbulent #ow is found to play an important role in the relatively low
electric "eld region.In the high electric "eld region,however,particles can be deposited on the
collection plates readily regardless of the turbulence intensity.The experimental results were
compared with existing theories and Zhibin and Guoquan (Aerosol Sci.Technol.20 (1994)
169}176) was identi"ed to be the best model for predicting the ESP performance.As the second
step,the in#uence of particle contamination at the discharging electrode and at the collection
plates were experimentally measured.The methods were sought for keeping the high collection
e$ciency of ESP over elapsed time by varying the magnitude of rapping acceleration,the time
interval between raps,the types of rapping system (hammer/vibrator) and the particle reentrainment.
The rapping e$ciency and the particle re-entrainment were increased with
increasing magnitude of rapping acceleration and time interval between raps.However,when
the thickness of deposited #y ash layer is su$ciently high,the concentration of re-entrained
particles starts decreasing abruptly due to the agglomeration force which can interact among
0304-3886/99/$ - see front matter ( 1999 Elsevier Science B.V.All rights reserved.
PII:S 0 3 0 4 - 3 8 8 6 ( 9 9 ) 0 0 0 4 4 - 3
deposited particles.The combined rapping system is found more ective for removing
deposited particles than the hammer rapping system only.( 1999 Elsevier Science B.V.All
rights reserved.
Keywords:Electrostatic precipitation; Turbulent #ow; Rapping; Particle re-entrainment; Collection e$-
ciency; Negative corona

翻译的不好请别见怪
电除尘器的实验研究
与现有的性能和比较
理论预测模型
柯于辉,李* K.W.
Kwangju科学技术学院、环境科学与工程,
1 Oryong-dong,Puk-gu 500-712,韩国,Kwangju
1999年二月一日收到;在1999年5月21日修订后的形式;接受了2 1999年6月
摘要
摘要建立了式电除尘器(ESP)的设计、建造及
在风洞实验研究.作为一个“rst步骤,通过试验来寻求
操作条件对提高粒子捕集ciency美元以不同的基本操作
参数包括wire-to-plate间距、钢丝半径、风速、颠簸
强度和电压.作为直径的排线与wire-toplate
间距设置较小,更高的ciency美元.在
单多线程的超感觉知觉,存在一个最佳wire-to-wire间距提供
最大的粒子捕集ciency美元.随着空气流速增加、粒度采集
ciency美元下降了.被发现的湍流#雪中扮演重要角色的相对较低
英语课程开发地区电力”.在高”英语课程开发区域,然而,可以存放的
收藏板容易无论紊动强度.实验结果
与现有理论和Zhibin相比,划圈(技术).20(1994)的成形工艺中的技术.
169 } 176)被识别”是最好的模型来预测除尘器性能.作为第二
在这一步,在自助服务的颗粒污染排放电极和收藏
实验测量板.这个方法是寻求保持极高的收藏
在ciency美元的消耗时间的大小由不同的时间、说唱加速度
间隔的判决,饶舌系统(锤/振动和粒子reentrainment).
ciency美元的说唱和粒子re-entrainment呈增加趋势
饶舌加速度和震级为增加的时间间隔的判决.然而,
沉积厚度的火山灰层侧向# y美元的浓度高、地re-entrained
由于粒子突然开始下降,凝聚力量之间的交互作用
0304-3886/99——看到前面物质/美元(1999年卷.版权所有.
有价证券:S 0三0 4 - 3 8 8 6(9)0 0 0四4 - 3
沉积颗粒.饶舌系统相结合的角度,发现更多.哦
沉积颗粒系统只比锤说唱.(1999年卷.所有
保留权利.
关键词:静电除尘、湍流#哦,re-entrainment饶舌,颗粒,收集美元-
ciency;负面的光环