Analysis on cyclone collection efficiencies at high temperatures--颗粒学报PARTICUOLOGY

Chen, J., & Shi, M. (2003). Analysis on cyclone collection efficiencies at high temperatures. China Particuology, 1(1), 20-26. https://doi.org/10.1016/S1672-2515(07)60095-5

Analysis on cyclone collection efficiencies at high temperatures

Jianyi Chen ^a *, Mingxian Shi ^b

a Mechanical & Electrical Engineering Institute, University of Petroleum, Dongying 257061, P. R. China
b School of Petrochemical Engineering, University of Petroleum, Beijing 100083, P. R. China

10.1016/S1672-2515(07)60095-5

Volume 1, Issue 1, April 2003, Pages 20-26

Received 12 February 2003, Accepted 12 March 2003, Available online 30 November 2007.

E-mail: jychhj@mail.hdpu.edu.cn

Highlights

Abstract

In order to predict the influence of operating temperature on cyclone performance, an experimental investigation on particle separation was conducted in a 300 mm diameter, tangential volute-inlet and reverse flow cyclone separator with air heated up to 973 K. The test powder silica has a mean mass diameter of 10 microns and the inlet velocity ranges from 12 m·s⁻¹ to 36 m·s⁻¹. Both the overall efficiency and fractional efficiency of the cyclone were measured as a function of the inlet velocity and operating temperature. It is shown that at the same inlet velocity both the overall efficiency and fractional efficiency decrease with an increase of temperature. An analysis of our own data and published results has shown that the fractional efficiency of a cyclone is a definite function of such dimensionless numbers as Stokes number, Reynolds number, Froude number and dimensionless cyclone inlet area and dimensionless outlet diameter. A nondimensional experimental correlation of the cyclone performance, including the influence of the temperature, was obtained on the basis of our own previous work. The prediction of the influence of temperature on separation efficiencies is in fairly good agreement with experimental results.

Graphical abstract

Keywords

cyclone separator; high temperature; collection efficiency; experiment

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