Mr. Agarwal,

I am interested in:

1) "DEBOTTLENECKING PNEUMATIC CONVEYING SYSTEMS"

2) "Theory and Design of Dilute Phase Pneumatic Conveying Systems"

Thanks! ■

Mr. Agarwal,

I am interested in:

1) "DEBOTTLENECKING PNEUMATIC CONVEYING SYSTEMS"

2) "Theory and Design of Dilute Phase Pneumatic Conveying Systems"

Thanks! ■

Dear Mr. Amrit Agarwal,

Can you send me a copy of your paper "Moving Air in Pneumatic Conveying Systems" please ?

My e-mail: tecnocereal@yahoo.com

Thank you very much.

Tanase TANASE

www.tecnocereal.com ■

Dear Mr. Amrit Agarwal,

Can you send me a copy of your paper "Moving Air in Pneumatic Conveying Systems" please ?

My e-mail: tecnocereal@yahoo.com

Thank you very much.

Tanase TANASE

www.tecnocereal.com ■

Dear Amrit,

I just read the thread on pneumatic conveying now.

Please can you send those papers to me as well?

1) "Theory and Design of Pneumatic Conveying Systems"

2) "Debottlenecking Pneumatic Conveying Systems" and

3) "Product Quality in Pneumatic Conveying"

Thanks for the assistance. Really appreciated.

Best Regards,

Ayuba

sinagoke123456@gmail.com

Originally Posted by Amrit Agarwal

My article "Theory and Design of Dilute Phase Pneumatic Conveying Systems" was published this month in Powder Handling and Processing magazine. This article gives an easy to use Excel-based calculation method for designing new dilute phase pneumatic conveying systems or for improving the performance of existing conveying systems.

Regards,

Amrit T. Agarwal

Consulting Engineer

Pneumatic Conveying Consulting Services

Email: polypcc@aol.com

Ph and Fax: 304 346 5125

Picture added by Adinistrator as an example:

■

Dear Amrit,

I just read the thread on pneumatic conveying now.

Please can you send those papers to me as well?

1) "Theory and Design of Pneumatic Conveying Systems"

2) "Debottlenecking Pneumatic Conveying Systems" and

3) "Product Quality in Pneumatic Conveying"

Thanks for the assistance. Really appreciated.

Best Regards,

Ayuba

sinagoke123456@gmail.com

Originally Posted by Amrit Agarwal

My article "Theory and Design of Dilute Phase Pneumatic Conveying Systems" was published this month in Powder Handling and Processing magazine. This article gives an easy to use Excel-based calculation method for designing new dilute phase pneumatic conveying systems or for improving the performance of existing conveying systems.

Regards,

Amrit T. Agarwal

Consulting Engineer

Pneumatic Conveying Consulting Services

Email: polypcc@aol.com

Ph and Fax: 304 346 5125

Picture added by Adinistrator as an example:

■

Hi, everybody.

We are going to design pneumatic conveying system for handling "Bentonite".

Does anybody have experience with this bulk material?

Our reference for design is "Pneumatic Conveying of Conveying of Solids" author "R.D Marcus" and I need your guide and experience for obtaining following items for Bentonit:

1. Min. Froude : Fr

2. Max. load ratio:

3. Pipe diameter calculation

4. Pressure lose

5. Air Requirement

Your cooperation in this regards would be highly appreciated. ■

Hi, everybody.

We are going to design pneumatic conveying system for handling "Bentonite".

Does anybody have experience with this bulk material?

Our reference for design is "Pneumatic Conveying of Conveying of Solids" author "R.D Marcus" and I need your guide and experience for obtaining following items for Bentonit:

1. Min. Froude : Fr

2. Max. load ratio:

3. Pipe diameter calculation

4. Pressure lose

5. Air Requirement

Your cooperation in this regards would be highly appreciated. ■

Dear Amrit

Could you send me a copy of this article?

My e-mail is nkoutsoub@gmail.com ■

Dear Amrit

Could you send me a copy of this article?

My e-mail is nkoutsoub@gmail.com ■

Could you please send me a copy of your software on Designing a dilute phase pneumatic conveying system.

My email is: dpant615@gmail.com ■

Could you please send me a copy of your software on Designing a dilute phase pneumatic conveying system.

My email is: dpant615@gmail.com ■

Originally Posted by Steven

Thank you Mr. Agarwal for sending me the article on "theory and design of dilute phase pneumatic conveying systems". I found it a practical, hands on approach and I am now trying to compose my own calculation sheet. Since I am European, I have one problem: the use of non-SI units, but I'll get by that !

I can definitely recommend the article!

Dear Steven

Do you have the excel calculation for the design system if yes can you mail me those kiranvarghese1@gmail.com

Thanks in advance ■

Originally Posted by Steven

Thank you Mr. Agarwal for sending me the article on "theory and design of dilute phase pneumatic conveying systems". I found it a practical, hands on approach and I am now trying to compose my own calculation sheet. Since I am European, I have one problem: the use of non-SI units, but I'll get by that !

I can definitely recommend the article!

Dear Steven

Do you have the excel calculation for the design system if yes can you mail me those kiranvarghese1@gmail.com

Thanks in advance ■

Does anyone already made an Excel sheet for the design calculation can send me the Spread sheet .

Thanks in Advance

kiran varghese ■

Does anyone already made an Excel sheet for the design calculation can send me the Spread sheet .

Thanks in Advance

kiran varghese ■

anyone out here can you please send me the excel sheet or any mathematical equations for the design calculation mail me kiranvarghese1@gmail.com ■

anyone out here can you please send me the excel sheet or any mathematical equations for the design calculation mail me kiranvarghese1@gmail.com ■

Originally Posted by amrit agarwal

++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

dear kiran varghese,

you can get a copy of my article on these design calculations. Just email your request to:

polypcc@aol.com

amrit agarwal

consulting engineer

pneumatic conveying consulting

i already mailed you sir

thanks in advance ■

Originally Posted by amrit agarwal

++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

dear kiran varghese,

you can get a copy of my article on these design calculations. Just email your request to:

polypcc@aol.com

amrit agarwal

consulting engineer

pneumatic conveying consulting

i already mailed you sir

thanks in advance ■

hi guys i tried to make Mr Amrit paper into Excel calculation and all expect the solids accelaration values are not getting the same.

in order to calculate the solids acc the equa used is wxVp/4640

w=solids line loading (lbs/sec.ft2)

vp is particle velocity (ft/sec)

but in page no 21 3.4.1

its written

In the same way enter the solids acceleration formula,

W·Vp/4640, in Cell #C2. For W, enter #C3 and for Vp enter #B10

from worksheet 1. Excel will enter the result in Cell #C2.

and here in worksheet 2 vp is b11 and w is b3

Inorder to calculate the value of W i mulktiplied 10000 lbs/hr with 3600 into sec and divided with the area of pipe

solids acc in worksheet 3 c2 got as same but for c3 am gettinf different value can anyone please help me to solve this issue.

Thanks in advance

kiran varghese ■

hi guys i tried to make Mr Amrit paper into Excel calculation and all expect the solids accelaration values are not getting the same.

in order to calculate the solids acc the equa used is wxVp/4640

w=solids line loading (lbs/sec.ft2)

vp is particle velocity (ft/sec)

but in page no 21 3.4.1

its written

In the same way enter the solids acceleration formula,

W·Vp/4640, in Cell #C2. For W, enter #C3 and for Vp enter #B10

from worksheet 1. Excel will enter the result in Cell #C2.

and here in worksheet 2 vp is b11 and w is b3

Inorder to calculate the value of W i mulktiplied 10000 lbs/hr with 3600 into sec and divided with the area of pipe

solids acc in worksheet 3 c2 got as same but for c3 am gettinf different value can anyone please help me to solve this issue.

Thanks in advance

kiran varghese ■

Dear kiran,

Welcome to the world of pneumatic conveying.

Take care ■

Dear kiran,

Welcome to the world of pneumatic conveying.

Take care ■

Originally Posted by Teus Tuinenburg

Dear kiran,

Welcome to the world of pneumatic conveying.

Take care

Thanks Teus trying starting to learn from the basics expecting more of your support . ■

Originally Posted by Teus Tuinenburg

Dear kiran,

Welcome to the world of pneumatic conveying.

Take care

Thanks Teus trying starting to learn from the basics expecting more of your support . ■

Originally Posted by Amrit Agarwal

++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ ++++++++++++

Dear Kiran,

To calculate pressure drop due to solids acceleration in the first section of the conveying line after the pick-up point, please use zero ft/sec as the solids starting velocity. This is because the solids are at rest at the feed point.

Regards,

Amrit Agarwal

Consulting Engineer

Pneumatic Conveying Consulting

Email: polypcc@aol.com

Dear Amrit

first of all a big thanks to your reply and for sharing your research paper . Still i have some question please correct me if am wrong.

Is the final answer 7.55 psi or any change in that?

while calculating the solids acce the only variable is the outlet velocity in the equation and for the section number 10 i used outlet gas velocity of 78.63 (O10) which am getting is different value from yours.Can ypu please help me to sort this out?

Thanks in advance

kiran varghese ■

Originally Posted by Amrit Agarwal

++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ ++++++++++++

Dear Kiran,

To calculate pressure drop due to solids acceleration in the first section of the conveying line after the pick-up point, please use zero ft/sec as the solids starting velocity. This is because the solids are at rest at the feed point.

Regards,

Amrit Agarwal

Consulting Engineer

Pneumatic Conveying Consulting

Email: polypcc@aol.com

Dear Amrit

first of all a big thanks to your reply and for sharing your research paper . Still i have some question please correct me if am wrong.

Is the final answer 7.55 psi or any change in that?

while calculating the solids acce the only variable is the outlet velocity in the equation and for the section number 10 i used outlet gas velocity of 78.63 (O10) which am getting is different value from yours.Can ypu please help me to sort this out?

Thanks in advance

kiran varghese ■

Dear Kiran,

The basics of pneumatic conveying are simple.

The internal energy (gas temperature) of the compressed gas is used to accelerate and convey material.

The energy transfer from gas to particle takes place by exchanging impulse.

Calculating the energy balance of pneumatic conveying is far more complicated and requires knowledge of the involved physics (Newton laws, gas theory, thermo-dynamics, conservation of energy, compressor technology, filter technology, feeder systems, flow behavior of bulk goods, etc.)

Figuring out all the relevant formulas and bringing those together in a working iterative, user friendly, computer algorithm has proven to be a very difficult task.

This task took me many years of studying, mathematics, programming and testing installations.

That part is what I meant with Welcome to the world of pneumatic conveying..

Take care ■

Dear Kiran,

The basics of pneumatic conveying are simple.

The internal energy (gas temperature) of the compressed gas is used to accelerate and convey material.

The energy transfer from gas to particle takes place by exchanging impulse.

Calculating the energy balance of pneumatic conveying is far more complicated and requires knowledge of the involved physics (Newton laws, gas theory, thermo-dynamics, conservation of energy, compressor technology, filter technology, feeder systems, flow behavior of bulk goods, etc.)

Figuring out all the relevant formulas and bringing those together in a working iterative, user friendly, computer algorithm has proven to be a very difficult task.

This task took me many years of studying, mathematics, programming and testing installations.

That part is what I meant with Welcome to the world of pneumatic conveying..

Take care ■

Dear Mr. Agarwal,

Would you please send me a copy of this paper to my e- mail?

Sincerely Yours,

Hossein ■

Dear Mr. Agarwal,

Would you please send me a copy of this paper to my e- mail?

Sincerely Yours,

Hossein ■

Originally Posted by Amrit Agarwal

++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ ++++++++++++

Dear Kiran,

To calculate pressure drop due to solids acceleration in the first section of the conveying line after the pick-up point, please use zero ft/sec as the solids starting velocity. This is because the solids are at rest at the feed point.

Regards,

Amrit Agarwal

Consulting Engineer

Pneumatic Conveying Consulting

Email: polypcc@aol.com

Dear Mr. Agarwal,

First of all I want to give a big thanks for sharing your very valuable article.

Anyway I am facing the same problem as Kiran. I don´t fully understand, how did you get those numbers on solids acceleration pressure drop.

The formula says: W * Vp / 4640

Same as Kiran, I have same result as you for the first segment, but not the same (nor similar) for the others.

If I use the zero velocity as you recommended to Kiran, I can´t get anything else than pure zero.

Can you please be more specific how did you obtain those numbers for solids acceleration pressure drop as the only variable is particle velocity which varies in very small range comparing the pubhlishe variations of solids acceleration pressure drop?

Many thanks in advance for your support!

Kind Regards

Michal Seifert ■

Originally Posted by Amrit Agarwal

++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ ++++++++++++

Dear Kiran,

To calculate pressure drop due to solids acceleration in the first section of the conveying line after the pick-up point, please use zero ft/sec as the solids starting velocity. This is because the solids are at rest at the feed point.

Regards,

Amrit Agarwal

Consulting Engineer

Pneumatic Conveying Consulting

Email: polypcc@aol.com

Dear Mr. Agarwal,

First of all I want to give a big thanks for sharing your very valuable article.

Anyway I am facing the same problem as Kiran. I don´t fully understand, how did you get those numbers on solids acceleration pressure drop.

The formula says: W * Vp / 4640

Same as Kiran, I have same result as you for the first segment, but not the same (nor similar) for the others.

If I use the zero velocity as you recommended to Kiran, I can´t get anything else than pure zero.

Can you please be more specific how did you obtain those numbers for solids acceleration pressure drop as the only variable is particle velocity which varies in very small range comparing the pubhlishe variations of solids acceleration pressure drop?

Many thanks in advance for your support!

Kind Regards

Michal Seifert ■

Dear Michal Seifert,

The pressure drop, caused by the acceleration of material is given as:

????????????????????????????????????=1/2????????????????????/????(????????????????????????????????????(????+1)^2????????????????????????????????????(????)^ 2)

As the velocity increases along the pipeline, due to air expansion, the pressure drop for kinetic energy also increases along the pipeline.

At a diameter increase, in case of a stepped pipeline, some energy is regained from the material kinetic energy.

At the same time, a particle is constantly falling in the air flow, due to gravity.

This “falling velocity energy” has to be accounted for also.

The formula, W=Vp/4640 is a different form of the formula I gave above. ■

Dear Michal Seifert,

The pressure drop, caused by the acceleration of material is given as:

????????????????????????????????????=1/2????????????????????/????(????????????????????????????????????(????+1)^2????????????????????????????????????(????)^ 2)

As the velocity increases along the pipeline, due to air expansion, the pressure drop for kinetic energy also increases along the pipeline.

At a diameter increase, in case of a stepped pipeline, some energy is regained from the material kinetic energy.

At the same time, a particle is constantly falling in the air flow, due to gravity.

This “falling velocity energy” has to be accounted for also.

The formula, W=Vp/4640 is a different form of the formula I gave above. ■