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Richard Holdich
Великобритания
Добавлен 23 янв 2019
Fundamentals of Particle Technology. A channel to support the free book which is designed to introduce and educate engineering students and scientists on the subject of Particle Technology. Other names for the subject include: granular systems; dispersed phase systems; solids processing; etc. The subject covers particles (solid or liquid) with a diameter of 0.1 micrometres, upwards. These particles are dispersed in a continuum, normally of material with molecular dimensions; i.e. a gas or liquid. The subject is often taught in courses of Chemical, Process, Environmental, Mechanical, Civil, Mineral and similar types of engineering. I recommend that you download the free book: Fundamentals of Particle Technology, and attempt the problems at the end of each chapter. I have included here videos that go through the solution to the problems. The book, and spreadsheets developed for the solutions are available as a free download from the link below. Please add your comments to the videos.
solid mixing specification and confidence; FPT Ch12 Q1 Pt2
Worked solution for Parts b and c in Question 1, Chapter 12 (available as free download at www.particles.org.uk/particle_technology_book/index.htm) in Fundamentals of Particle Technology.
The importance of Specification and Confidence in a solid mixing operation is illustrated based on using the Normal distribution. The proportion of active ingredient in a pill is assumed to vary between pills following the Normal distribution. The allowable variation is 10% and it is possible to deduce how many pills will have a higher variation (and lower) than this value dependent on the confidence limits chosen. In this example, the confidence values of both 3 Sigma and 6 Sigma are used, and the result...
The importance of Specification and Confidence in a solid mixing operation is illustrated based on using the Normal distribution. The proportion of active ingredient in a pill is assumed to vary between pills following the Normal distribution. The allowable variation is 10% and it is possible to deduce how many pills will have a higher variation (and lower) than this value dependent on the confidence limits chosen. In this example, the confidence values of both 3 Sigma and 6 Sigma are used, and the result...
Просмотров: 1 139
Видео
solid mixing specification and confidence; FPT Ch12 Q1 Pt1
Просмотров 2163 года назад
Worked solution for Question 1, Chapter 12 (available as free download at www.particles.org.uk/particle_technology_book/index.htm) in Fundamentals of Particle Technology. The importance of Specification and Confidence in a solid mixing operation is illustrated by considering the number of particles going to make up a pill. When operating at the 99.8% confidence level the number of particles per...
solid mixing predicted mixture quality ; FPT Ch12 Q3
Просмотров 1833 года назад
The basis for the worked solution for Question 3, Chapter 12 (available as free download at www.particles.org.uk/particle_technology_book/index.htm) in Fundamentals of Particle Technology. The question asks for an analysis of mixture quality when mixing TWO solid powders together. The expected mixture quality comes from the Pool, Taylor and Wall equation which predicts the variance between samp...
solid mixing assessment of mixture quality; FPT Ch12 Q2 Pt2
Просмотров 1493 года назад
The worked solution for Question 2, Chapter 12 (available as free download at www.particles.org.uk/particle_technology_book/index.htm) in Fundamentals of Particle Technology. The question asks for an analysis of mixture quality when mixing solid powders together. The expected mixture quality comes from the Pool, Taylor and Wall equation which predicts the variance between samples withdrawn from...
solid mixing assessment of mixture quality; FPT Ch12 Q2 Pt1
Просмотров 2073 года назад
The basis for the worked solution for Question 2, Chapter 12 (available as free download at www.particles.org.uk/particle_technology_book/index.htm) in Fundamentals of Particle Technology. The question asks for an analysis of mixture quality when mixing solid powders together. The expected mixture quality comes from the Pool, Taylor and Wall equation which predicts the variance between samples ...
Gas Cyclone for Particle Collection Stokes Number and Inertia; FPT Ch14 Q6 Pt2
Просмотров 7113 года назад
Worked solution for Question 6, Chapter 14 (available as free download at www.particles.org.uk/particle_technology_book/index.htm) in Fundamentals of Particle Technology. The question asks for the predicted performance of an industrial gas cyclone, from tests performed in the laboratory on a much smaller cyclone with the same geometrical design (e.g. inlet and outlet sizes relative to cyclone d...
Gas Cyclone for Particle Collection Stokes Number and Inertia; FPT Ch14 Q6 Pt1
Просмотров 4813 года назад
The background on inertial collection of particles and the Stokes Number. This is the first part (i.e. theory) before the worked solution for Question 6, Chapter 14 (available as free download at www.particles.org.uk/particle_technology_book/index.htm) in Fundamentals of Particle Technology. The question asks for the predicted performance of an industrial gas cyclone, from tests performed in th...
Dust Removal Spray Tower; FPT Ch14 Q5
Просмотров 4543 года назад
Worked solution for Question 5, Chapter 14 (available as free download at www.particles.org.uk/particle_technology_book/index.htm) in Fundamentals of Particle Technology. The question asks for the single target efficiency of the drops within a spray tower, used to remove dust from a gas stream. Initially the overall collection efficiency is calculated, and then the single target efficiency from...
Grade Efficiency Calculation; FPT Ch14 Q1
Просмотров 4043 года назад
Worked solution for Question 1, Chapter 14 (available as free download at www.particles.org.uk/particle_technology_book/index.htm) in Fundamentals of Particle Technology. The determination of the grade efficiency curve, and separation size, for a classifier. This is a device that splits the solids flowing in to it between the 'fine cut' and the 'coarse cut' from the classifier. By convention, w...
Dust Collection in Turbulent Flow; FPT Ch14 Q3
Просмотров 2323 года назад
Worked solution for Question 3, Chapter 14 (available as free download at www.particles.org.uk/particle_technology_book/index.htm) in Fundamentals of Particle Technology. How to design a simple Louvre system to collect particles flowing in a highly turbulent gas stream. In the previous question we discovered that the gas flow was highly turbulent and our simple critical trajectory model that as...
Thickener Underflow Prediction; FPT Ch6 Q3
Просмотров 1,7 тыс.3 года назад
Worked solution for Question 3, Chapter 6 (available as free download at www.particles.org.uk/particle_technology_book/index.htm) in Fundamentals of Particle Technology. This covers continuous thickener design using flux theory, which is covered in Chapter 6 of the book. In Question 2 we used the batch flux curve to determine the required thickener area, for a desired underflow concentration. I...
Continuous Thickener Design by graphical flux theory; FPT Ch6 Q2
Просмотров 4 тыс.3 года назад
Worked solution for Question 2, Chapter 6 (available as free download at www.particles.org.uk/particle_technology_book/index.htm) in Fundamentals of Particle Technology. This covers continuous thickener design using flux theory, which is covered in Chapter 6 of the book. In Question 1 we discovered that a batch tank to settle solids at 3% v/v, at a rate of 1000 cubic metres per day, was not fea...
Constant Pressure Filtration Analysis and Design; FPT Ch4 Q5
Просмотров 1,4 тыс.3 года назад
Worked solution to Question 5, Chapter 4 (available as free download at www.particles.org.uk/particle_technology_book/index.htm) in Fundamentals of Particle Technology. The question asks the reader to determine the specific cake resistance to filtration, and the filter medium resistance, from a small amount of data obtained on a pilot scale filter, operating at constant pressure. Having obtaine...
Louvre Particle Dust Collector; FPT Ch14 Q2
Просмотров 2673 года назад
Worked solution for Question 2, Chapter 14 (available as free download at www.particles.org.uk/particle_technology_book/index.htm) in Fundamentals of Particle Technology. How to design a simple Louvre system to collect particles flowing in a gas stream. In this instance the louvre is horizontal and particles simply sediment out of the gas stream onto a tray, and there are 8 trays in the chamber...
Sedimenting Centrifuge - Sigma Machine; FPT Ch8 Q3
Просмотров 4343 года назад
Worked solution for Question 3, Chapter 8 (available as free download at www.particles.org.uk/particle_technology_book/index.htm) in Fundamentals of Particle Technology. Sigma Machine is the theoretical 'Equivalent Area' of a gravity sedimentation basin that does the same job as the centrifuge, in terms of particle removal for a given volumetric flow rate. It contains the dimensions of the mach...
Sedimenting Centrifuge - Sigma Process; FPT Ch8 Q2
Просмотров 3403 года назад
Sedimenting Centrifuge - Sigma Process; FPT Ch8 Q2
Camp Hazen Sedimentation Basin Model; FPT Ch5 Q2
Просмотров 6593 года назад
Camp Hazen Sedimentation Basin Model; FPT Ch5 Q2
Particle Motion in Centrifugal Field; FPT Ch8 Q1
Просмотров 5373 года назад
Particle Motion in Centrifugal Field; FPT Ch8 Q1
Fluidized Bed Expansion under assumed Particulate Fluidization Basis; FPT Ch7 Q3
Просмотров 6183 года назад
Fluidized Bed Expansion under assumed Particulate Fluidization Basis; FPT Ch7 Q3
Minimum Fluidizing Velocity Calculation; FPT Ch7 Q2
Просмотров 2,3 тыс.3 года назад
Minimum Fluidizing Velocity Calculation; FPT Ch7 Q2
Minimum Fluidizing Velocity; FPT Ch7 Q1
Просмотров 8963 года назад
Minimum Fluidizing Velocity; FPT Ch7 Q1
Hindered Settling Batch Sedimentation Design; FPT Ch6 Q1
Просмотров 1,1 тыс.3 года назад
Hindered Settling Batch Sedimentation Design; FPT Ch6 Q1
Particle Terminal Settling Velocity; FPT Ch5 Q1
Просмотров 9753 года назад
Particle Terminal Settling Velocity; FPT Ch5 Q1
Constant Rate and Pressure Filtration; FPT Ch4 Q4
Просмотров 7874 года назад
Constant Rate and Pressure Filtration; FPT Ch4 Q4
Constant Rate Filtration; FPT Ch4 Q3
Просмотров 1,2 тыс.4 года назад
Constant Rate Filtration; FPT Ch4 Q3
Couldn't have explained it better. Thank you, sir.
Amazing
Thank you sir, absolutely excellent lecture
Amazing.
thank you :)
hi could you please tell me what is the references of this formula?
Sir can I have your WhatsApp no. I have a quarry that I want to ask....
Clear explanation
What’s the best benchtop type test to be able to convert sigma, to a full scale industrial unit?
Have a lazy question: would the settling rate of a droplet of water in oil be the same as the rise rate of this droplet of oil in water?
According to Kozeny Carmen equation, a 10% change in porosity can produce: (a) Three fold change in rate of flow (b) Two fold change in rate of flow (c) Ten fold change in rate of flow (d) Hundred fold change in rate of flow Dear please clarify Question.
sir
Could you please tell me how to calculate the total surface area of a suspended solids stored in a known volume? PSD( particle size distribution) and TSS( total suspended solids) levels known. Thanks
Hello can I ask you a question about terminal velocity?
how do you even get 2 in your denominator?
Thank you so much for excellent lecture
helpful
The courage is 0.45
Your teaching method is too good.
I'm doing my dissertation, unfortunately there is a little information on this topic. This content helped me a lot. Thanks for the explanation. Obrigado ( in portuguese)
thank you so much. really appreciate your effort to explain
it's really helpful to help me understanding the formula
thank you very much
ruclips.net/video/JP_p0dlCwlI/видео.html because the answer given there was somewhat misleading. there is no way that n0 will be 0.9. So we cannot regard 10% value as the variance per as it is and just use the formula
can you explain how to do question 8 of this chapter? thank you for the uploads, really helps a lot.
Yes, I will - might take a couple of weeks. The answers are on the web site, copied and pasted here: Q8 i) the correct answer is (d). ii) the correct answer is (b). iii) the correct answer is (c). iv) the correct answer is (b). v) the correct answer is (a). vi) the correct answer is (b). vii) the correct answer is (a) Thank you for your positive comments. Richard
Thanks. I like this style of explanation.
You are welcome!
A nice short refresher
Good
Correction: at time 12:32 the correct answer is (d) and not (c), the superficial velocity is 0.55 m/s. I ticked (c), but used the correct value for all the rest of the calculations - sorry for any confusion.
Nice
The video mentions a freely available book on Particle Technology (Chapter 2 for particle sizing), one download site for the book is at: particles.org.uk/particle_technology_book/particle_book.htm Please do download the chapter and do try the problems at the end of the chapter. You will know your particle size distributions very well when you have completed the problems. Richard Holdich