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Particle Technology Fundamentals
This deck covers key concepts in particle technology, including definitions, particle characterization, and various measurement techniques. It is designed for students in chemical engineering to understand the handling and processing of particulate solids.
What is particle technology?
Particle technology is the science and technology related to the handling and processing of particles and powders, often referred to as powder technology or particle science.
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Key Terms
Term
Definition
What is particle technology?
Particle technology is the science and technology related to the handling and processing of particles and powders, often referred to as powder technol...
Why is particle technology important in the chemical industry?
It is crucial for designing equipment for handling, storing, transporting, and processing powders and particulates, impacting industries like oil, min...
Define a particle in the context of this course.
A particle is a discrete sub-portion of a substance, including solid particles, liquid droplets, or gas bubbles, with dimensions ranging from sub-nano...
What is the volume diameter?
The volume diameter is the diameter of a sphere having the same volume as the particle.
What does sphericity measure?
Sphericity measures the degree to which a particle's shape resembles a sphere, with a value of 1 for a perfect sphere.
What is the significance of particle size distribution?
It provides a quantitative indication of the mean size and spread of sizes in a particle population, crucial for process control and quality assurance...
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| Term | Definition |
|---|---|
What is particle technology? | Particle technology is the science and technology related to the handling and processing of particles and powders, often referred to as powder technology or particle science. |
Why is particle technology important in the chemical industry? | It is crucial for designing equipment for handling, storing, transporting, and processing powders and particulates, impacting industries like oil, mineral processing, and water treatment. |
Define a particle in the context of this course. | A particle is a discrete sub-portion of a substance, including solid particles, liquid droplets, or gas bubbles, with dimensions ranging from sub-nanometer to several millimeters. |
What is the volume diameter? | The volume diameter is the diameter of a sphere having the same volume as the particle. |
What does sphericity measure? | Sphericity measures the degree to which a particle's shape resembles a sphere, with a value of 1 for a perfect sphere. |
What is the significance of particle size distribution? | It provides a quantitative indication of the mean size and spread of sizes in a particle population, crucial for process control and quality assurance. |
What is sieve analysis? | Sieve analysis is a method for classifying powders by passing them through a series of screens with standardized mesh sizes. |
How does the optical sensing technique work? | It measures the scattered light from a particle passing through a sensing volume illuminated by a light source, relating light intensity to particle size. |
What is the difference between mass and number distributions in particle size analysis? | Mass distribution considers the total mass of particles, while number distribution considers the count of particles, leading to different interpretations of size data. |
What are the two golden rules of sampling? | 1. The powder should be in motion when sampled. 2. The whole of the moving stream should be taken for many short time increments. |