Gas-solid Two-phase Flow of Pulverized Coal by ECT: A Review

Nur Arina Hazwani Samsun Zaini, Ruzairi Abdul Rahim, Juliza Jamaludin, Herman Wahid, Mimi Faisyalini Ramli, Nasarudin Ahmad, Mohamad Shukri Manaf, Yusri Md. Yunos, Anita Ahmad, Ahmad Azahari Hamzah, Chan Kok San, Farah Aina Jamal Mohamad, Navintiran, Syarfa Najihah Raisin, Fatinah Mohd Rahalim

Abstract

Electrical capacitance tomography (ECT) is a non-intrusive and non-invasive internal visualization tool that facilitates improved quantification by producing cross-sectional distribution information for any kind of multiphase flow. In a coal-fired power station, there are some concerning issues such as the sedimentation of pulverized coal in the piping system before it reaches the boiler system and the non-uniformity of its velocity, which contributes to a reduction in electricity generation and higher carbon dioxide emissions. The aim of this paper is to provide a review based on various research works on pulverized coal that utilized ECT system. This paper also consists of principle of ECT, image reconstruction, and velocity measurement. Further research and works will be executed based on the preliminary data gained to improve the existing works.