Prediction of the Effect of Dimension, Particle Density, Temperature, and Inlet Velocity on Cyclone Collection Efficiency

Abstract

Kecekapan pengumpulan pemisah siklon bergantung kepada beberapa faktor seperti dimensinya, ketumpatan partikel dan suhu beroperasi. Sifat fizikal bendalir seperti ketumpatan dan kelikatan bendalir serta parameter operasi misalnya halaju masukan bendalir juga mempengeruhi kecekapan siklon. Artikel ini membandingkan ketepatan ramalan oleh empat model siklon iaitu Lapple[2], Koch dan Licht[3], Li dan Wang[4], dan Iozia dan Leith[5]. Kesemua ramalan terbukti memuaskan jika dibandingkan dengan data eksperimen yang sedia ada. Model Li dan Wang[4] menghasilkan ramalan yang lebih tepat berbanding tiga model lain dengan penyisihan hanya 3% daripada data eksperimen. Oleh yang demikian, model tersebut sesuai digunakan untuk menilai kecekapan silikon. Kecekapan silikon meningkat dengan berkurangnya diameter siklon, suhu beroperasi dan lebar masukan siklon. Sebaliknya, kecekapan siklon di dapati meningkat secara berkadar terus dengan peningkatan halaju masukan dan ketumpatan partikel. Kata kunci: Kecekapan siklon, dimensi, halaju masukan, suhu The collection efficiency of a cyclone separator depends on several factors including design parameters, such as dimensions of the cyclone separator, particle density, and operating temperature. The physical properties of fluid, namely the density and viscosity, and operating parameters such as the inlet velocity of the fluid into the cyclone and the outlet conditions also affect the cyclone efficiency. This paper compares the prediction accuracy of four cyclone collection models, namely Lapple[2], Koch and Licht[3], Li and Wang[4], and Iozia and Leith[5]. All the predictions proved to be satisfactory when compared with the presented experimental data. The Li and Wang model[4], predicts the cyclone collection efficiency much better than the other three models with a deviation of only 3% from the experimental data and therefore, it could be used in the evaluation of cyclone efficiency. The cyclone efficiency increases with decreasing cyclone body diameter, operating temperature, and cyclone inlet width. On the other hand, cyclone effiency increases proportionally with inlet velocity and particle density. Keywords: Cyclone efficiency; dimension; inlet velocity; temperature