Originally Posted by Sanmarcbe

Dear Sir, Request you to semd me the actilcle "Theory and Design of Pneumatic Conveying Systems" and the basic design calculation to my id sanmarcbe@gmail.com. Thanks & Regards, P. Santhakumar

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Dear Santhakumar,

A copy of my article "Theory and Design of Pneumatic Conveying Systems" is being sent to you. If you have any questions, please post them in this Forum so that others can participate in any discussion.

Regards,

Amrit Agarwal

Pneumatic Conveying Consulting

Email: polypcc@aol.com ■

Originally Posted by Sanmarcbe

Dear Sir, Request you to semd me the actilcle "Theory and Design of Pneumatic Conveying Systems" and the basic design calculation to my id sanmarcbe@gmail.com. Thanks & Regards, P. Santhakumar

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

Dear Santhakumar,

A copy of my article "Theory and Design of Pneumatic Conveying Systems" is being sent to you. If you have any questions, please post them in this Forum so that others can participate in any discussion.

Regards,

Amrit Agarwal

Pneumatic Conveying Consulting

Email: polypcc@aol.com ■

Originally Posted by guddu

Dear sir

Denseveyor as per this (http://www.macawberindia.com/DENSEVEYOR.pdf ) link has got major attraction . Iam also attaching pdf file

Generally it being used to convey course as or mill reject (higher particle size)

Would you explain me th advantage and why we prefer it for higher particle size

How it is differ from other ash conveying vessel

kj

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Dear Kj,

As you know, dense phase is a term that is used for conveying at low velocity, or say to say "gentle velocity". This velocity is used for those materials that are abrasive, or tend to break up into smaller sized particles when conveyed at dilute phase conveying velocity. Coal ash falls under this category of materials. Dilute phase can be used for such materials if the conveying system is designed to minimize the erosive affect of such abrasive materials and if particle attrition is not a concern. You may contact me if you have any questions.

Regards,

Amrit Agarwal

Pneumatic Conveying Consulting

email: polypcc@aol.com ■

Originally Posted by guddu

Dear sir

Denseveyor as per this (http://www.macawberindia.com/DENSEVEYOR.pdf ) link has got major attraction . Iam also attaching pdf file

Generally it being used to convey course as or mill reject (higher particle size)

Would you explain me th advantage and why we prefer it for higher particle size

How it is differ from other ash conveying vessel

kj

========================================================================================

Dear Kj,

As you know, dense phase is a term that is used for conveying at low velocity, or say to say "gentle velocity". This velocity is used for those materials that are abrasive, or tend to break up into smaller sized particles when conveyed at dilute phase conveying velocity. Coal ash falls under this category of materials. Dilute phase can be used for such materials if the conveying system is designed to minimize the erosive affect of such abrasive materials and if particle attrition is not a concern. You may contact me if you have any questions.

Regards,

Amrit Agarwal

Pneumatic Conveying Consulting

email: polypcc@aol.com ■

Originally Posted by guddu

Dear sir

My specific quiry is that , In what way this vessel denseveyor is better than other ash vessel .?. I mean why do we prefer this denseveyor for bed ash and mill reject material conveying

kj

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Dear kj,

Dense phase conveying systems can use a pressure vessel or a rotary valve to feed the solids into the conveying line. In your case a pressure vessel is being used. The name denseveyor is being used by the vendor to give it's name, but it is a pressure vessel nevertheless. Some vendors use an additional bypass line for conveying air to further reduce the conveying velocity.

Regards,

Amrit Agarwal

Pneumatic Conveying Consulting ■

Originally Posted by guddu

Dear sir

My specific quiry is that , In what way this vessel denseveyor is better than other ash vessel .?. I mean why do we prefer this denseveyor for bed ash and mill reject material conveying

kj

############################################################

Dear kj,

Dense phase conveying systems can use a pressure vessel or a rotary valve to feed the solids into the conveying line. In your case a pressure vessel is being used. The name denseveyor is being used by the vendor to give it's name, but it is a pressure vessel nevertheless. Some vendors use an additional bypass line for conveying air to further reduce the conveying velocity.

Regards,

Amrit Agarwal

Pneumatic Conveying Consulting ■

Amrit ,

Could you send me a copy of your article "Theory and Design of Dilute Phase Pneumatic Conveying Systems"?

My e-mail is gyutzy@eeeug.com

Thanks very much in advanced,

Gordon Yutzy

Evergreen Engineering

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Dear Gordan,

As requested, a copy of my article has already been sent to you. Please post any questions or comments on the article in this Forum so that others can participate.

Regards,

Amrit Agarwal

Consulting Engineer

Pneumatic Conveying Consulting

email: polypcc@aol.com ■

Amrit ,

Could you send me a copy of your article "Theory and Design of Dilute Phase Pneumatic Conveying Systems"?

My e-mail is gyutzy@eeeug.com

Thanks very much in advanced,

Gordon Yutzy

Evergreen Engineering

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

Dear Gordan,

As requested, a copy of my article has already been sent to you. Please post any questions or comments on the article in this Forum so that others can participate.

Regards,

Amrit Agarwal

Consulting Engineer

Pneumatic Conveying Consulting

email: polypcc@aol.com ■

Carson Bone;

TO: Mr. Amrit Agarwal

Do you mind sending me your pneumatic literature title

“ Debottlenecking Pneumatic Conveying Systems “

and

“ Product Quality in Pneumatic Conveying “

Thanks,

Carson Bone

Biosystems Engineer

C: 865.312.3860

[email]cbone@protonpower.com

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Dear Carson,

A copy of my two articles dealing with: 1) "Capacity Increase", and 2) "Product Quality in Pneumatic Conveying" are being sent to you. Please post your questions and comments in this Forum so that others may join.

Regards,

Amrit Agarwal

Consulting Engineer

Pneumatic Conveying Consulting

email: polypcc@aol.com ■

Carson Bone;

TO: Mr. Amrit Agarwal

Do you mind sending me your pneumatic literature title

“ Debottlenecking Pneumatic Conveying Systems “

and

“ Product Quality in Pneumatic Conveying “

Thanks,

Carson Bone

Biosystems Engineer

C: 865.312.3860

[email]cbone@protonpower.com

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

Dear Carson,

A copy of my two articles dealing with: 1) "Capacity Increase", and 2) "Product Quality in Pneumatic Conveying" are being sent to you. Please post your questions and comments in this Forum so that others may join.

Regards,

Amrit Agarwal

Consulting Engineer

Pneumatic Conveying Consulting

email: polypcc@aol.com ■

Originally Posted by gurpratap

Nuva Feeder design (vent & equalising pipeline Design)

we do have combine vacuum & pressure system for Ash handling plant.

Accumulated fly ash in ESP Hoppers are Evacuated by Vacuum Process from respective hoppers & conveyed through bag filters & collected in buffer Hopper in dry form. this dry ash through NUVA FEEDERS, below Buffer Hoppers is pressure conveyed to Ash Silo through pressure conveying system.

we are facing a lot of problem in NUVA Feeders, as Frequent choking of NUVA feeders Body Fluidising lines, Frequent choking of Pressure conveying pipeline(just below NUVA Feeders), No ash Discharge from NUVA Feeders to Pressure conveying pipeline, Frequent Passing of Vent Valves, no ash transfer from Buffer hopper to NUVA feeders .

can anybody help in understanding NUVA Feeder Design.

1. vent piping design for NUVA feeder filling time;

2. Equalising Piping Design for NUVA Feeders

3. Fluidising piping design for NUVA feeders. ESP Hoppers.

Gurpratap Singh

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Dear Mr. Singh,

I will be glad to provide this help. Please send complete information on the design of your conveying system and on the NUVA feeders to my email address given below.

Regards,

Amrit Agarwal

Pneumatic Conveying Consulting

Email: polypcc@aol.com ■

Originally Posted by gurpratap

Nuva Feeder design (vent & equalising pipeline Design)

we do have combine vacuum & pressure system for Ash handling plant.

Accumulated fly ash in ESP Hoppers are Evacuated by Vacuum Process from respective hoppers & conveyed through bag filters & collected in buffer Hopper in dry form. this dry ash through NUVA FEEDERS, below Buffer Hoppers is pressure conveyed to Ash Silo through pressure conveying system.

we are facing a lot of problem in NUVA Feeders, as Frequent choking of NUVA feeders Body Fluidising lines, Frequent choking of Pressure conveying pipeline(just below NUVA Feeders), No ash Discharge from NUVA Feeders to Pressure conveying pipeline, Frequent Passing of Vent Valves, no ash transfer from Buffer hopper to NUVA feeders .

can anybody help in understanding NUVA Feeder Design.

1. vent piping design for NUVA feeder filling time;

2. Equalising Piping Design for NUVA Feeders

3. Fluidising piping design for NUVA feeders. ESP Hoppers.

Gurpratap Singh

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Dear Mr. Singh,

I will be glad to provide this help. Please send complete information on the design of your conveying system and on the NUVA feeders to my email address given below.

Regards,

Amrit Agarwal

Pneumatic Conveying Consulting

Email: polypcc@aol.com ■

Dear Mr. Serhey,

A copy of my article is being sent to you. If you have any comments or questions on this article, please post them in this Forum so that others may join in any discussion.

Amrit Agarwal

Pneumatic Conveying Consulting

Email: polypcc@aol.com ■

Dear Mr. Serhey,

A copy of my article is being sent to you. If you have any comments or questions on this article, please post them in this Forum so that others may join in any discussion.

Amrit Agarwal

Pneumatic Conveying Consulting

Email: polypcc@aol.com ■

Complete design of pneumatic conveying systems requires first its basic process design and then the design of its equipment and components. The basic design establishes the conveying pressure, conveying airflow rate, and pipeline diameter for the conveying system. This subject was covered in my article “Theory and Design of Dilute Phase Pneumatic Conveying Systems” that was published in Processing Magazine. The design of conveying system’s equipment and components is covered in my articles named below that were published in Chemical Engineering Magazine. Each article is a complete design guide for the subject discussed. Let me know if you need a copy.

1) “MOVING AIR IN PNEUMATIC CONVEYING SYSTEMS”. (For the design, sizing, and selection of blowers and fans).

2) “ROTARY VALVES IN PNEUMATIC CONVEYING SYSTEMS”. (For the design, sizing, selection, and installation of rotary valves).

3) “RULES OF THUMB FOR PNEUMATIC CONVEYING PIPE LINES”. (For the design, selection, and installation of pneumatic conveying pipelines).

4) “DESIGN GUIDE FOR DUST COLLECTORS”. (For the design, sizing, selection, and operation of dust collectors).

5) “INSTRUMENTATION AND CONTROL SYSTEMS IN PNEUMATIC CONVEYING”. (For the design of instrumentation and control systems for pneumatic conveying systems).

6) “DUST EXPLOSIONS: PREVENTION AND PROTECTION”. (For the design dust explosion prevention and protection methods and how to design them).

Amrit Agarwal

Consulting Engineer, Pneumatic Conveying Consulting

Email: polypcc@aol.com ■

Complete design of pneumatic conveying systems requires first its basic process design and then the design of its equipment and components. The basic design establishes the conveying pressure, conveying airflow rate, and pipeline diameter for the conveying system. This subject was covered in my article “Theory and Design of Dilute Phase Pneumatic Conveying Systems” that was published in Processing Magazine. The design of conveying system’s equipment and components is covered in my articles named below that were published in Chemical Engineering Magazine. Each article is a complete design guide for the subject discussed. Let me know if you need a copy.

1) “MOVING AIR IN PNEUMATIC CONVEYING SYSTEMS”. (For the design, sizing, and selection of blowers and fans).

2) “ROTARY VALVES IN PNEUMATIC CONVEYING SYSTEMS”. (For the design, sizing, selection, and installation of rotary valves).

3) “RULES OF THUMB FOR PNEUMATIC CONVEYING PIPE LINES”. (For the design, selection, and installation of pneumatic conveying pipelines).

4) “DESIGN GUIDE FOR DUST COLLECTORS”. (For the design, sizing, selection, and operation of dust collectors).

5) “INSTRUMENTATION AND CONTROL SYSTEMS IN PNEUMATIC CONVEYING”. (For the design of instrumentation and control systems for pneumatic conveying systems).

6) “DUST EXPLOSIONS: PREVENTION AND PROTECTION”. (For the design dust explosion prevention and protection methods and how to design them).

Amrit Agarwal

Consulting Engineer, Pneumatic Conveying Consulting

Email: polypcc@aol.com ■

Originally Posted by draybrad

Mr. Agarwal,

I have created a spreadsheet using your 2005 article for the design of a MgCL2 pneumatic conveying line. The check my spreadsheet I used your example from the article but I am unable to create the solids acceleration pressure loss after the initial acceleration. Can you help me with this?

Thanks,

Brad Drayton

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Brad,

For solids acceleration pressure drop, the starting velocity of solids should be zero.

Please contact me if you have any more questions.

Amrit Agarwal

Pneumatic Conveying Consulting

email: polypcc@aol.com ■

Originally Posted by draybrad

Mr. Agarwal,

I have created a spreadsheet using your 2005 article for the design of a MgCL2 pneumatic conveying line. The check my spreadsheet I used your example from the article but I am unable to create the solids acceleration pressure loss after the initial acceleration. Can you help me with this?

Thanks,

Brad Drayton

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

Brad,

For solids acceleration pressure drop, the starting velocity of solids should be zero.

Please contact me if you have any more questions.

Amrit Agarwal

Pneumatic Conveying Consulting

email: polypcc@aol.com ■

[QUOTE=draybrad;82927]This would imply to me that the remaining terms would be zero. The acceleration after bends are approximated in the bends' equivalent length correct?

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Dear Brad,

Solids velocity is zero only at the beginning of the first section. This is because the solids are lying stationary at this point. In subsequent sections solids velocity will not be zero in well designed conveying systems.

For bends, starting solids velocity will not be the same as the velocity the end of the previous section, but less than that due to frictional losses while going through the bend. This reduction in velocity varies depending upon the solid's properties being conveyed.

On entering the straight section after the bend, solids are once again accelerated to their normal conveying velocity. For pressure drop due to this acceleration, a term "bend pressure drop" is used, as explained in my article.

Regards,

Amrit Agarwal

Pneumatic Conveying Consulting

Email: polypcc@aol.com ■

[QUOTE=draybrad;82927]This would imply to me that the remaining terms would be zero. The acceleration after bends are approximated in the bends' equivalent length correct?

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

Dear Brad,

Solids velocity is zero only at the beginning of the first section. This is because the solids are lying stationary at this point. In subsequent sections solids velocity will not be zero in well designed conveying systems.

For bends, starting solids velocity will not be the same as the velocity the end of the previous section, but less than that due to frictional losses while going through the bend. This reduction in velocity varies depending upon the solid's properties being conveyed.

On entering the straight section after the bend, solids are once again accelerated to their normal conveying velocity. For pressure drop due to this acceleration, a term "bend pressure drop" is used, as explained in my article.

Regards,

Amrit Agarwal

Pneumatic Conveying Consulting

Email: polypcc@aol.com ■

Dear Sir

I would greatly appreciate it if you could share the excel file of your pneumatic calculations with me. I am a young engineer looking to progress in the material handling industry and deepen my understanding of the subject. My email is : m.k.anand@outlook.com. I appreciate your help.

thanks,

Anand

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Dear Mr. Anand,

Thanks for your interest in my article on pneumatic conveying calculations. A copy of my article is being sent to you. Please post any questions or comments you may have on this article in this Forum so that others may join in the discussion. Regards,

Amrit Agarwal

Consulting Engineer

Pneumatic Conveying Consulting

Emailolypcc@aol.com ■

Dear Sir

I would greatly appreciate it if you could share the excel file of your pneumatic calculations with me. I am a young engineer looking to progress in the material handling industry and deepen my understanding of the subject. My email is : m.k.anand@outlook.com. I appreciate your help.

thanks,

Anand

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

Dear Mr. Anand,

Thanks for your interest in my article on pneumatic conveying calculations. A copy of my article is being sent to you. Please post any questions or comments you may have on this article in this Forum so that others may join in the discussion. Regards,

Amrit Agarwal

Consulting Engineer

Pneumatic Conveying Consulting

Emailolypcc@aol.com ■

Originally Posted by mkanand

Dear Sir

I would greatly appreciate it if you could share the excel file of your pneumatic calculations with me. I am a young engineer looking to progress in the material handling industry and deepen my understanding of the subject. My email is : m.k.anand@outlook.com. I appreciate your help.

thanks,

Anand

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

Dear Anand,

As requested, a copy of my article has been sent to you for dilute phase pneumatic conveying system calculations. This article should help your understanding of pneumatic conveying. Any questions or comments you may have should be posted in this Forum so that others may join.

Regards,

Amrit Agarwal

Consulting Engineer

Pneumatic Conveying Consulting

Email: polypcc@aol.com ■

Originally Posted by mkanand

Dear Sir

I would greatly appreciate it if you could share the excel file of your pneumatic calculations with me. I am a young engineer looking to progress in the material handling industry and deepen my understanding of the subject. My email is : m.k.anand@outlook.com. I appreciate your help.

thanks,

Anand

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

Dear Anand,

As requested, a copy of my article has been sent to you for dilute phase pneumatic conveying system calculations. This article should help your understanding of pneumatic conveying. Any questions or comments you may have should be posted in this Forum so that others may join.

Regards,

Amrit Agarwal

Consulting Engineer

Pneumatic Conveying Consulting

Email: polypcc@aol.com ■

Dear Mr. Anand,

A copy of this article has been sent to you but you will have to develop your own Excel work book to run the calculations. Please note that the solids velocity will be zero at the beginning of the first section.

Regards,

Amrit Agarwal

Pneumatic Conveying Consulting

email: polypcc@aol.com ■

Dear Mr. Anand,

A copy of this article has been sent to you but you will have to develop your own Excel work book to run the calculations. Please note that the solids velocity will be zero at the beginning of the first section.

Regards,

Amrit Agarwal

Pneumatic Conveying Consulting

email: polypcc@aol.com ■