Abstract

The complex multiphase gas-solid flow has always been a point of attraction for researchers over the past decade to explore the sensing techniques to sense and measure the mass flow. Weather dilute or dense phase flow, the gas-solid flow measurement generally requires velocity profile and volumetric concentration measurement to find the mass flow rate. The nature of the solids, the environmental factors-specially moisture adversely affects the sensor readings-specifically when it is non-invasive capacitive sensors. Gas-solid flow finds its applications in power plants, food, chemical, automobile, and pharmaceutical industries. This paper aims to explore the evolution of a novel approach of using load cell in conjunction with capacitive electrodes for calculating the mass flow rate of the solids.

Highlights

  • Powder flow finds its application from everyday domestic kitchen and laundry activities like sugar, coffee, and detergents to the most significant events of nature like a mudslide, avalanches, and pyroclastic flow

  • Optical sensing, acoustic techniques, radiometric methods, electrostatic sensors, and capacitive sensors are the notable techniques used for the measurement of Gas/Solid particles flow rate measurement

  • This paper focuses on the preliminary investigations on the calculation of the average mass flow rate of solid particles in an inclined channel using a mechanical sensor

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Summary

Introduction

Powder flow finds its application from everyday domestic kitchen and laundry activities like sugar, coffee, and detergents to the most significant events of nature like a mudslide, avalanches, and pyroclastic flow. [1] Pneumatic conveying have earned a remarkable name and fame in many chemical, food, power generation, and other process industries. The efficiency of these industries based on the precise measurement of the mass flow rate of solids. Optical sensing, acoustic techniques, radiometric methods, electrostatic sensors, and capacitive sensors are the notable techniques used for the measurement of Gas/Solid particles flow rate measurement. The optical sensors, digital imaging and acoustic techniques give better results when the concentration of solid particles is low. Hazardous to health by radiation leakage and require proper shielding, the results of radiometric methods are quite promising in the case of high concentration of solid particles.[4], [5]. Online and offline assessments of flow parameters extensively employ capacitance measurement method. [6]

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