• 主题
高级搜索  >
历史搜索 清空历史
首页> 美国政府科技报告 >Field Test of a Capacitive Transducer for Density/Velocity (Mass Flow) Measurement on the HYGAS Pilot Plant Solvent/Coal Feedline
【24h】

Field Test of a Capacitive Transducer for Density/Velocity (Mass Flow) Measurement on the HYGAS Pilot Plant Solvent/Coal Feedline

机译：HYGas中试溶剂/煤炭进料线密度/速度（质量流量）测量的电容式传感器现场试验

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

It is concluded that: l. The HYGAS experiment testing capacitive measurement of mass flow has shown the method to be feasible. 2. The capacitive method provides an absolute measure of the stream velocity, neglecting the question of correction for flow profiles. That is, the method is absolute but may not be precise. 3. The calibrated density value of capacitance versus char concentration in percent by weight is approximately linear. It appears to be a useful measure of solids concentration in the slurry. 4. Auxiliary measurements of density and temperature are needed to improve the interpretation of the signals obtained from the capacitive measurement. 5. Signal-to-noise ratios obtained were sufficiently good to encourage the development of an inexpensive on-line electronic readout system. 6. Further work is needed on the design of the density electrodes to improve the zero stability. Variations in the air filled value are attributed to unwanted contributions from dielectrics outside the desired measurement region. (ERA citation 04:021168)

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号