Capacitance Probe Measurement Technique for Local Particle Volume Concentration in Circulating Fluidized Bed Combustors

JOURNAL OF CHEMICAL ENGINEERING OF JAPAN

Shigekatsu Mori¹  Kimihito Narukawa¹  Bernd Hage²  Joachim Werther² 

[1] Department of Chemical Engineering, Nagoya University;Chemical Engineering I, Technical University Hamburg-Harburg

关键词: Fluidized Bed Combustion;    Solids Volume Concentration;    Capacitance Probe;    Sewage Sludge;    Circulating Fluidized Bed;   

DOI  :  10.1252/jcej.29.594

来源: Maruzen Company Ltd

【 摘 要 】

References(34)Cited-By(8)This paper describes a capacitance probe measurement technique for the quantitative determination of local particle volume concentrations inside a fluidized bed combustor. The influence of temperature, water content in the fluidization gas, and burning fuel particles in the solids inventory on the measured signal is investigated in a laboratory-scale fluidized bed combustor. Application of the measurement system is demonstrated on a semi-technical scale circulating fluidized bed (CFB) sewage sludge combustor. By applying a data preprocessing step and a suitable calibration routine, the measurement system is able to quantitatively measure local average solids volume concentration as low as 0.1 vol.-%. Radial profiles of local average solid volume concentrations taken at various elevations inside the riser demonstrate the performance of the technique.

【 授权许可】

Unknown