Selection of emission frequency for moisture measurement in coal by microwave power attenuation

LIU Haiyu; TAN Houzhang; FAN Baoguo; JIN Yan

English

您当前的位置：

首页 >

文章列表页 >

Selection of emission frequency for moisture measurement in coal by microwave power attenuation

Thermal Power Generation Vol. 43, Issue 6, Pages: 136-140(2014)

更新时间：2025-09-28

- Selection of emission frequency for moisture measurement in coal by microwave power attenuation
- 作者机构：
  
  1. 太原理工大学电气与动力工程学院
  2. 西安交通大学能源与动力工程学院
- 作者简介：
- 基金信息：
- DOI：
  CLC： TQ533
- Published：2014
- 稿件说明：
移动端阅览
LIU Haiyu, TAN Houzhang, FAN Baoguo, et al. Selection of emission frequency for moisture measurement in coal by microwave power attenuation[J]. Thermal Power Generation, 2014, 43(6): 136-140.
DOI：

LIU Haiyu, TAN Houzhang, FAN Baoguo, et al. Selection of emission frequency for moisture measurement in coal by microwave power attenuation[J]. Thermal Power Generation, 2014, 43(6): 136-140. DOI：

摘要

通过搭建1~4GHz宽频率微波实验台

测定了6种煤的微波功率衰减对煤质水分变化的响应特性。结果表明:采用微波功率衰减法测量煤质水分时

在频率≥3.5GHz下

煤的含水量变化与微波衰减近似为二次曲线关系

并且随着频率升高

拟合精度相差不大;选择较低的频率可以测量较大含水量和较厚的煤样

实际应用中可根据需要选取合适的频率。

Abstract

A microwave instrument was designed to determine the moisture content in coal with a wide emission frequency ranging from 1 to 4GHz.The response character of microwave power attenuation to moisture content in six kinds of coal showed that when the frequency was larger than 3.5GHz

the response curve of microwave power attenuation to moisture content could be described as conic equation.As the frequency increases

the fitting precision trends to be closer.However

a relative low frequency can be more capable of determining coal with large moisture content and thickness.In real-world usage

we can select the optimal frequency according to requirements.

关键词

Keywords

references

Views

130

下载量

CSCD

Alert me when the article has been cited

提交

Publicity Resources

Experimental study on pollutants emission and ash formation characteristics during co-combustion of biomass and coal in fluidized bed

Experimental study on combustion characteristics of a new biomass fuel blended with small proportion of pulverized coal

Current status and development of control technologies for PM2.5 and Hg during pulverized coal combustion

Experimental study on co-firing characteristics of coal/biomass blends in O2/CO2 atmosphere

esearch status of drying and crushing characteristics of lignite

Related Author

许慧

张子皓

赵瑞东

陈天举

武景丽

方龙

吴晋沪

GAO Jiajia

Related Institution

Institute of Mechanics, Chinese Academy of Sciences (CAS)

East China Electric Power Design Institute Co., Ltd.

Huadian Electric Power Research Institute

State Key Laboratory of Coal Combustion, Huazhong University of Science and Technology

EU Institute for Clean and Renewable Energy, Huazhong University of Science and Technology,, China

AI问答

⁰