Thermoelectric Phenomana in High-Temperature and High-Pressure Electrostatic Precipitator and Performance Improvement
高温高压静电除尘器的热电现象及性能改进
基本信息
- 批准号:07455092
- 负责人:
- 金额:$ 4.93万
- 依托单位:
- 依托单位国家:日本
- 项目类别:Grant-in-Aid for Scientific Research (B)
- 财政年份:1995
- 资助国家:日本
- 起止时间:1995 至 1996
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
Efficient removal of fly ash particles from high temperature flue gas is one of the most important technologies to be developed for realizing advanced high efficiency coal utilization systems such as an integrated coal gasification combined cycle (IGCC), and ceramics filtering systems have been considered for this purpose. On the other hand, high-temperature electrostatic precipitator systems also have a high possibility to be used for gas clean-up in IGCC.But in this case, high-pressure condition should be required to maintain corona discharge. The purpose of this study is to clarify separated effects of temperature and pressure on various electric and thermal phenomena in the high-temperature and high-pressure electrostatic precipitator and to obtain fundamental knowledges necessary to develop a highly efficient high-temperature and high-pressure electrostatic precipitator. For this purpose, one-dimensional cylindrical electrostatic precipitator with a thin wire electrode at the centerline has been constructed and effects of temperature and pressure on various electric and thermal phenomena have been derived separately and then coupled effect of them on precipitation performances have been clarified.Drastic decrease of collection efficiency at high temperature can be qualitatively explained by decrease of ion formation rate near the center electrode, decrease of particle charging rate and decrease of particle drift velocity with high kinematic viscosity and this result can be well explained by the dependency of mean free path on the temperature. The discharge mode should have changed from corona to glow mode. So, applying high pressure is definitely necessary to maintain high performance and low energy consumption in a high-temperature electrostatic precipitator.
从高温烟气中有效地去除飞灰颗粒是实现先进的高效煤炭利用系统(例如整体煤气化联合循环(IGCC))所要开发的最重要的技术之一,并且陶瓷过滤系统已经被考虑用于该目的。另一方面,高温静电除尘系统也有很大的可能性用于IGCC中的气体净化,但在这种情况下,需要高压条件来维持电晕放电。本研究的目的是阐明温度和压力对高温高压电除尘器中各种电和热现象的单独影响,并获得开发高效高温高压电除尘器所需的基础知识。为此目的,一个本文建立了一个中心线为细线电极的三维圆柱形电除尘器,分别导出了温度和压力对各种电、热现象的影响,阐明了它们对除尘性能的耦合作用,并定性地解释了高温下除尘效率的急剧下降是由于中心附近离子形成速率的降低高运动粘度的颗粒荷电率降低,漂移速度降低,这一结果可以用平均自由程对温度的依赖性来解释。放电模式应从电晕模式变为辉光模式。因此,在高温电除尘器中施加高压是保持高性能和低能耗的必要条件。
项目成果
期刊论文数量(7)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
K.Ishimaru, K.Okazaki: "Formation Mechanism and Characteristics of Nonequilibrium Plasma by Pulsed Silent Discharge" Bull.of JSME,Ser.B. Vol.63, No.606. 609-615 (1997)
K.Ishimaru、K.Okazaki:“脉冲无声放电非平衡等离子体的形成机制和特征”Bull.of JSME,Ser.B。
- DOI:
- 发表时间:
- 期刊:
- 影响因子:0
- 作者:
- 通讯作者:
石丸和博、岡崎健: "方形波無声放電による非平衡プラズマの形成機構とその特性" 日本機械学会論文集. 63,606. 609-615 (1997)
Kazuhiro Ishimaru、Ken Okazaki:“方波无声放电的非平衡等离子体的形成机制及其特性”,日本机械工程师学会会刊 63,606 (1997)。
- DOI:
- 发表时间:
- 期刊:
- 影响因子:0
- 作者:
- 通讯作者:
K.Okazaki, S.Yasuda, S.Hirai: "Analysis of Formation Process of High-Voltage Ultra-Short Pulsed Plasma" Bull.of JSME,Ser.B. (in print). (1997)
K.Okazaki、S.Yasuda、S.Hirai:“高压超短脉冲等离子体的形成过程分析”Bull.of JSME,Ser.B。
- DOI:
- 发表时间:
- 期刊:
- 影响因子:0
- 作者:
- 通讯作者:
Ambadi S. Kumar, Ken Okazaki: "Electrode Surface Control of Transition from Micro-Arcs to High-Current Arcs in Atmospheric-Pressure Plasmas" IEEE Transactions on Plasma Science. 23,4. 735-741 (1995)
Ambadi S. Kumar、Ken Okazaki:“大气压等离子体中从微电弧到高电流电弧过渡的电极表面控制”IEEE 等离子体科学汇刊。
- DOI:
- 发表时间:
- 期刊:
- 影响因子:0
- 作者:
- 通讯作者:
{{
item.title }}
{{ item.translation_title }}
- DOI:
{{ item.doi }} - 发表时间:
{{ item.publish_year }} - 期刊:
- 影响因子:{{ item.factor }}
- 作者:
{{ item.authors }} - 通讯作者:
{{ item.author }}
数据更新时间:{{ journalArticles.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ monograph.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ sciAawards.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ conferencePapers.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ patent.updateTime }}
OKAZAKI Ken其他文献
富氧燃烧系统中NO的还原及其排放的大幅度减少
- DOI:
- 发表时间:
2011 - 期刊:
- 影响因子:0
- 作者:
刘皓;任瑞琪;黄永俊;杨落恢;祝贺;ANDO Takashi;OKAZAKI Ken - 通讯作者:
OKAZAKI Ken
OKAZAKI Ken的其他文献
{{
item.title }}
{{ item.translation_title }}
- DOI:
{{ item.doi }} - 发表时间:
{{ item.publish_year }} - 期刊:
- 影响因子:{{ item.factor }}
- 作者:
{{ item.authors }} - 通讯作者:
{{ item.author }}
{{ truncateString('OKAZAKI Ken', 18)}}的其他基金
Fundamental research for reduction of pollutant emission of coal combustion for zero CO_2 emission
燃煤污染物减排及CO_2零排放基础研究
- 批准号:
21246035 - 财政年份:2009
- 资助金额:
$ 4.93万 - 项目类别:
Grant-in-Aid for Scientific Research (A)
Analysis of early degenerative changes of arthritis cartilage
关节炎软骨早期退行性改变分析
- 批准号:
19591758 - 财政年份:2007
- 资助金额:
$ 4.93万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
Fundemental study of multi-path biomass gasification system for hydrogen production
多路生物质气化制氢系统基础研究
- 批准号:
15206022 - 财政年份:2003
- 资助金额:
$ 4.93万 - 项目类别:
Grant-in-Aid for Scientific Research (A)
Microscale transport Phenomena for high performance polymer electrolyte fuel cells
高性能聚合物电解质燃料电池的微尺度输运现象
- 批准号:
12555056 - 财政年份:2000
- 资助金额:
$ 4.93万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
Fundamental study of ultra clean, high efficiency combustion system with integrated mass and Heat recirculations
集成质量和热再循环的超清洁、高效燃烧系统的基础研究
- 批准号:
11305019 - 财政年份:1999
- 资助金额:
$ 4.93万 - 项目类别:
Grant-in-Aid for Scientific Research (A)
Mechanisms of Ultra-low NOx and High Efficiency De-SOx in CO_2 Recycled Coal Combustion
CO_2再生煤燃烧超低NOx和高效脱SOx机理
- 批准号:
09450089 - 财政年份:1997
- 资助金额:
$ 4.93万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
Development of Measuring CO_2 Concentration by Laser Induced Multiphoton Fluorescence
激光诱导多光子荧光测量CO_2浓度的研究进展
- 批准号:
07558069 - 财政年份:1995
- 资助金额:
$ 4.93万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
Efficient Extraction of Exergy from Hydrocarbon Fuels
从碳氢化合物燃料中有效提取火用
- 批准号:
06246103 - 财政年份:1994
- 资助金额:
$ 4.93万 - 项目类别:
Grant-in-Aid for Scientific Research on Priority Areas
Active Cntrol of Surface Reattion in CVD Orocess by an Ultra-Voltage Pulsed Plasma
超高压脉冲等离子体主动控制CVD工艺中的表面反应
- 批准号:
04452147 - 财政年份:1992
- 资助金额:
$ 4.93万 - 项目类别:
Grant-in-Aid for General Scientific Research (B)
Selective Reaction Control of CVD Process by a New Discharge Technique
新型放电技术对CVD过程的选择性反应控制
- 批准号:
01460117 - 财政年份:1989
- 资助金额:
$ 4.93万 - 项目类别:
Grant-in-Aid for General Scientific Research (B)
相似海外基金
Fundamentals of energy efficient precipitation and inactivation of COVID-19 aerosols by means of an ozone-free electrostatic precipitator designed for indoor use.
通过专为室内使用设计的无臭氧静电除尘器实现节能降水和灭活 COVID-19 气溶胶的基础知识。
- 批准号:
468800814 - 财政年份:2021
- 资助金额:
$ 4.93万 - 项目类别:
Research Grants
STTR Phase I: Soft X-ray Enhanced Electrostatic Precipitator for High Efficiency Air Purification in Indoor Environments
STTR 第一期:软 X 射线增强静电除尘器,用于室内环境高效空气净化
- 批准号:
1549666 - 财政年份:2016
- 资助金额:
$ 4.93万 - 项目类别:
Standard Grant
Development of prototype low-cost electrostatic precipitator voltage supplies based on efficient resonant conversion to reduce industrial emissions
开发基于高效谐振转换的原型低成本静电除尘器电压源,以减少工业排放
- 批准号:
720659 - 财政年份:2015
- 资助金额:
$ 4.93万 - 项目类别:
GRD Development of Prototype
Suppression of abnormal reentrainment utilizing gradient force on a collection plate of electrostatic precipitator
利用梯度力抑制静电除尘器集尘板上的异常再夹带
- 批准号:
15K13928 - 财政年份:2015
- 资助金额:
$ 4.93万 - 项目类别:
Grant-in-Aid for Challenging Exploratory Research
Study of Diesel PM Collection for Marine Emissions using Electrostatic Precipitator
静电除尘器收集船用柴油机颗粒物的研究
- 批准号:
22360371 - 财政年份:2010
- 资助金额:
$ 4.93万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
Development of electrostatic precipitator optimization codes for control of fine particulate in industrial flue gases and air cleaning
开发静电除尘器优化代码,用于控制工业烟气和空气净化中的细颗粒物
- 批准号:
223630-1999 - 财政年份:1999
- 资助金额:
$ 4.93万 - 项目类别:
Collaborative Research and Development Grants
Novel Electrostatic Precipitator Concept with Controlled Solids Reentrainment and Turbulence
具有受控固体再夹带和湍流的新型静电除尘器概念
- 批准号:
9461918 - 财政年份:1995
- 资助金额:
$ 4.93万 - 项目类别:
Standard Grant
Experiment and Analysis of Flow Field in a Wire-Duct Type Electrostatic Precipitator
线管式静电除尘器流场实验与分析
- 批准号:
61550217 - 财政年份:1986
- 资助金额:
$ 4.93万 - 项目类别:
Grant-in-Aid for General Scientific Research (C)
Development of Wet Type Electrostatic Precipitator Using a Mist Formation
利用雾形成的湿式静电除尘器的开发
- 批准号:
58850042 - 财政年份:1983
- 资助金额:
$ 4.93万 - 项目类别:
Grant-in-Aid for Developmental Scientific Research
RESEARCH INITIATION-AN ELECTROSTATIC PRECIPITATOR FOR THE TREATMENT OF GASEOUS POLLUTANTS
启动研究——处理气态污染物的静电除尘器
- 批准号:
7355825 - 财政年份:1973
- 资助金额:
$ 4.93万 - 项目类别: