Author/Authors :
Fadzil, Naizatul Shima Mohd Universiti Teknologi Malaysia - Faculty of Electrical Engineering - Process Tomography and Instrumentation Engineering Research Group (PROTOM-i), Infocomm Research Alliance, Malaysia , Abdul Rahim, Ruzairi Universiti Teknologi Malaysia - Faculty of Electrical Engineering - Process Tomography Research Group (PROTOM-i), Malaysia , Karis, Mohd Safirin Universiti Tun Hussein Onn Malaysia - Faculty of Electrical and Electronic Engineering, Malaysia , Muji, Siti Zarina Mohd Universiti Tun Hussein Onn Malaysia - Faculty of Electrical and Electronic Engineering, Malaysia , Abdul Sahib, Mohd Fadzli Universiti Tun Hussein Onn Malaysia - Faculty of Electrical and Electronic Engineering, Malaysia , Mansora, Mohd Saiful Badri Universiti Teknologi Malaysia - Faculty of Electrical Engineering - Process Tomography and Instrumentation Engineering Research Group (PROTOM-i), Malaysia , Ayob, Nor Muzakkir Nor Universiti Teknologi Malaysia - Faculty of Electrical Engineering - Process Tomography and Instrumentation Engineering Research Group (PROTOM-i), Infocomm Research Alliance, Malaysia , Jumaah, Mohd Fahajumi Universiti Teknologi Malaysia - Faculty of Electrical Engineering - Process Tomography and Instrumentation Engineering Research Group (PROTOM-i), Infocomm Research Alliance, Malaysia , Zawahir, Mohd Zikrillah Universiti Teknologi Malaysia - Faculty of Electrical Engineering - Process Tomography and Instrumentation Engineering Research Group (PROTOM-i), Infocomm Research Alliance, Malaysia
Abstract :
This paper presents a hardware design and optical tomography application for fast cross sectional detection of single or two phase flows in pipes or bubble columns. Sixteen laser pointer transmitters and photodiode receivers are arranged at the object cross sectional boundary to detect the existence of bubbles inside a vertical column pipeline. A valve is installed at the bottom of the pipe to produce the source of bubbles. Due to the simple operation, good heat transfer and mass transfer of bubble columns, they can be applied in a wide range of applications in the chemical process industry. The size of the bubbles produced was estimated to be between 5 mm and 20 mm in diameter. The voltage drop at the sensor directly shows the existence of bubbles between the transmitter and receiver.
