Design Calculations for Pneumatic Conveying

Posted in: , on 22. Apr. 2005 - 01:33

My article "Theory and Design of Dilute Phase Pneumatic Conveying Systems" was published this month in

dense_phase_pneumatic_conveying

href="https://who.bulk-online.com/profile/2-reinhard-h-wohlbier.html" target="blank">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:

dense_phase_pneumatic_conveying

href="mailto:polypcc@aol.com">polypcc@aol.com

Ph and Fax: 304 346 5125

Picture added by Adinistrator as an example:

dense_phase_pneumatic_conveying

href="https://forum.bulk-online.com/attachment.php?attachmentid=42181&d=1415730847" id="attachment42181" rel="Lightbox14426" target="blank">Click image for larger version. Name:DensePhasePneumaticConveying.jpg Views:5935 Size:184.2 KB ID:42181

hykpyramids
(not verified)

Re: Article: Theory And Design Of Dilute Phase Pneumatic Convey…

Posted on 8. Apr. 2007 - 07:50

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

hykpyramids
(not verified)

Re: Article: Theory And Design Of Dilute Phase Pneumatic Convey…

Posted on 8. Apr. 2007 - 07:50

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

System Design Calculations For Pneumatic Conveying

Posted on 8. Jun. 2007 - 10:10

Dear Amrit

Could you send me a copy of this article?

My e-mail is wilson.meneses@jaraguaequipamentos.com

"... If you know basic Excel, you can use my calculation method published in Powder Handling and Processing magazine in its April 2005 issue. This article gives the theory and all of the equations that are internally used in computer programs. It takes the mystery out of the computer programs. I can send a free PDF copy if you need one...."

Best regards

System Design Calculations For Pneumatic Conveying

Posted on 8. Jun. 2007 - 10:10

Dear Amrit

Could you send me a copy of this article?

My e-mail is wilson.meneses@jaraguaequipamentos.com

"... If you know basic Excel, you can use my calculation method published in Powder Handling and Processing magazine in its April 2005 issue. This article gives the theory and all of the equations that are internally used in computer programs. It takes the mystery out of the computer programs. I can send a free PDF copy if you need one...."

Best regards

Pakorn - OneSteel, Australia
(not verified)

Re: Design Calculations For Pneumatic Conveying

Posted on 15. Jun. 2007 - 01:11

Dear Amrit,

I'm trying to find information on dust extraction system design, an area which I have very little knowledge of. Can you please help me by sending me a copy of your three articles cited throughout Bulk-Online forum, being:

1) "Theory and Design of Pneumatic Conveying Systems"

2) "Debottlenecking Pneumatic Conveying Systems" and

3) "Product Quality in Pneumatic Conveying"

My email is burroughsp@onesteel.com

Thank you.

Pakorn

Pakorn - OneSteel, Australia
(not verified)

Re: Design Calculations For Pneumatic Conveying

Posted on 15. Jun. 2007 - 01:11

Dear Amrit,

I'm trying to find information on dust extraction system design, an area which I have very little knowledge of. Can you please help me by sending me a copy of your three articles cited throughout Bulk-Online forum, being:

1) "Theory and Design of Pneumatic Conveying Systems"

2) "Debottlenecking Pneumatic Conveying Systems" and

3) "Product Quality in Pneumatic Conveying"

My email is burroughsp@onesteel.com

Thank you.

Pakorn

System Design Calculations For Pneumatic Conveying

Posted on 16. Jun. 2007 - 02:13

Dear Amrit

May I also request a copy of your article?

"... If you know basic Excel, you can use my calculation method publised in Powder Handling and Processing magazine in its April 2005 issue. This article gives the theory and all of the equations that are internally used in computer programs. It takes the mystery out of the computer programs. I can send a free PDF copy if you need one...."

My e-mail is simon@carrier.com.br

Thanks in advance

Osmar

System Design Calculations For Pneumatic Conveying

Posted on 16. Jun. 2007 - 02:13

Dear Amrit

May I also request a copy of your article?

"... If you know basic Excel, you can use my calculation method publised in Powder Handling and Processing magazine in its April 2005 issue. This article gives the theory and all of the equations that are internally used in computer programs. It takes the mystery out of the computer programs. I can send a free PDF copy if you need one...."

My e-mail is simon@carrier.com.br

Thanks in advance

Osmar

Thank You

Posted on 17. Jun. 2007 - 09:38

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!

Thank You

Posted on 17. Jun. 2007 - 09:38

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!

dipak_barge - Bevconwayors, India
(not verified)

Pneumatic Conveying System Calculation

Posted on 20. Jun. 2007 - 12:46

Hi,

Pl. send me Pnuematic Conveying System Calculations.

With Best regards,

Dipak

dipak_barge - Bevconwayors, India
(not verified)

Pneumatic Conveying System Calculation

Posted on 20. Jun. 2007 - 12:46

Hi,

Pl. send me Pnuematic Conveying System Calculations.

With Best regards,

Dipak

rmsahu
(not verified)

Pnumatic Conveying Design

Posted on 25. Jun. 2007 - 03:14

Dear Sir,

Could you please tell me, what will be the minimum conveying velocity and phase density to be considered to design M type F.K.PUMP pneumatic system for conveying 225 tph PPC cement(Blaine:3700cm2/gm) at a conveying distance of 260 meter & six 90 degree bends?

Regards,

R.M.SAHU,

Grasim Industries ltd.

India

rmsahu
(not verified)

Pnumatic Conveying Design

Posted on 25. Jun. 2007 - 03:14

Dear Sir,

Could you please tell me, what will be the minimum conveying velocity and phase density to be considered to design M type F.K.PUMP pneumatic system for conveying 225 tph PPC cement(Blaine:3700cm2/gm) at a conveying distance of 260 meter & six 90 degree bends?

Regards,

R.M.SAHU,

Grasim Industries ltd.

India

Re: Design Calculations For Pneumatic Conveying

Posted on 25. Jun. 2007 - 07:58

Dear Mr Sahu,

A FK-pump operates at approx 1.8 bar maximum.

At 225 tons/hr, I expect the pump to consume approx. 200 kW

(Check this with Fuller)

The design of your installation could be as follows.

CEMENT

SAHU sahu d 06-25-2007

Pressure discharge Cement

Preliminary design

Convey length = 260 m

Nu of bends= 6

Pump vol = 1 + 1 m^3/s

q-convey = 1.01 m^3/s

Dia begin = 293 mm Dia end = 343 mm

Pipevolume = 19.69 m^3

-------------Pipeline

Press-------Cap----------mu-----------------------v-begin ---- v-end ------kWh/ton ----- res.time

2.500------- 279 --------62--------Silo calc--------5.4 --------12.8-------- 0.78 -------- 40.12

2.250------- 264 --------58--------Silo calc.--------5.7--------12.8 --------0.75-------- 38.27

2.000-------247 ---------55-------Silo calc.-------- 6.1 --------12.8--------0.72 --------36.32

1.750-------230-----------51------Silo calc.-------- 6.7 --------12.8-------- 0.69 -------- 34.36

1.500 -------211----------47------ Silo calc. --------7.3 --------12.7-------- 0.66--------32.27

1.250-------190----------42--------Silo calc.--------8.0--------12.7-------- 0.64-------- 30.16

1.000-------167 ----------37------ Silo calc. -------9.0 --------12.6-------- 0.61 --------27.94

0.750-------140----------31--------Silo calc. -------10.2--------12.6--------0.60 --------25.63

0.500-------106-----------23-------Silo calc.--------11.9--------12.5--------0.63-------- 23.16

0.250-------54-------------12------Silo calc. --------14.1--------12.4-------- 0.93-------- 20.45

Empty pipeline pressure ...= 671.3 mmWC

To answer your question.

The minimum conveying velocity is:

approx 6.7 m/sec at 1.75 bar(o)

approx 14 m/sec at atmospheric conditions

As this design is for a 2 stepped pipeline , the velocities for a single pipeline diameter become different.

best regards

teus

Teus

Re: Design Calculations For Pneumatic Conveying

Posted on 25. Jun. 2007 - 07:58

Dear Mr Sahu,

A FK-pump operates at approx 1.8 bar maximum.

At 225 tons/hr, I expect the pump to consume approx. 200 kW

(Check this with Fuller)

The design of your installation could be as follows.

CEMENT

SAHU sahu d 06-25-2007

Pressure discharge Cement

Preliminary design

Convey length = 260 m

Nu of bends= 6

Pump vol = 1 + 1 m^3/s

q-convey = 1.01 m^3/s

Dia begin = 293 mm Dia end = 343 mm

Pipevolume = 19.69 m^3

-------------Pipeline

Press-------Cap----------mu-----------------------v-begin ---- v-end ------kWh/ton ----- res.time

2.500------- 279 --------62--------Silo calc--------5.4 --------12.8-------- 0.78 -------- 40.12

2.250------- 264 --------58--------Silo calc.--------5.7--------12.8 --------0.75-------- 38.27

2.000-------247 ---------55-------Silo calc.-------- 6.1 --------12.8--------0.72 --------36.32

1.750-------230-----------51------Silo calc.-------- 6.7 --------12.8-------- 0.69 -------- 34.36

1.500 -------211----------47------ Silo calc. --------7.3 --------12.7-------- 0.66--------32.27

1.250-------190----------42--------Silo calc.--------8.0--------12.7-------- 0.64-------- 30.16

1.000-------167 ----------37------ Silo calc. -------9.0 --------12.6-------- 0.61 --------27.94

0.750-------140----------31--------Silo calc. -------10.2--------12.6--------0.60 --------25.63

0.500-------106-----------23-------Silo calc.--------11.9--------12.5--------0.63-------- 23.16

0.250-------54-------------12------Silo calc. --------14.1--------12.4-------- 0.93-------- 20.45

Empty pipeline pressure ...= 671.3 mmWC

To answer your question.

The minimum conveying velocity is:

approx 6.7 m/sec at 1.75 bar(o)

approx 14 m/sec at atmospheric conditions

As this design is for a 2 stepped pipeline , the velocities for a single pipeline diameter become different.

best regards

teus

Teus

rmsahu
(not verified)

Re: Design Calculations For Pneumatic Conveying

Posted on 26. Jun. 2007 - 06:24

Sir,

Thanks for answering my query.Could you please also tell me what phase density yoy have considered for designing?What will be FAD(Free air delivery) and design pressure of the compressor for the said F.K.Pump.

Regards,

R.M.Sahu,

INDIA

rmsahu
(not verified)

Re: Design Calculations For Pneumatic Conveying

Posted on 26. Jun. 2007 - 06:24

Sir,

Thanks for answering my query.Could you please also tell me what phase density yoy have considered for designing?What will be FAD(Free air delivery) and design pressure of the compressor for the said F.K.Pump.

Regards,

R.M.Sahu,

INDIA

Re: Design Calculations For Pneumatic Conveying

Posted on 26. Jun. 2007 - 06:35

Dear Mr Sahu,

I designed the installation for the chosen velocities (as usual in pneumatic cement conveying).

Whether the design is dense or dilute phase is not so important.

It will be close to the minimum pressure drop per meter of length.

Less air would make the conveying dense phase.

mu in the table means the Soloid Loading Ratio (SLR)

The free air delivery is already given in the calculation as:

q-convey = 1.01 m3/sec # 60.6 m3/min

The conveying pressure at the beginning of the pipe (= FK pump pressure) shouls be approx. 1.8 bar(o) as for the FK pump, this is the maximim pressure it can handle. (Please check this with Fuller, USA).

The compressor should be an oil free screw compressor with internal compression with a displacement of approx 60 m3/min at approx 2.5 bar maximum

Teus

Re: Design Calculations For Pneumatic Conveying

Posted on 26. Jun. 2007 - 06:35

Dear Mr Sahu,

I designed the installation for the chosen velocities (as usual in pneumatic cement conveying).

Whether the design is dense or dilute phase is not so important.

It will be close to the minimum pressure drop per meter of length.

Less air would make the conveying dense phase.

mu in the table means the Soloid Loading Ratio (SLR)

The free air delivery is already given in the calculation as:

q-convey = 1.01 m3/sec # 60.6 m3/min

The conveying pressure at the beginning of the pipe (= FK pump pressure) shouls be approx. 1.8 bar(o) as for the FK pump, this is the maximim pressure it can handle. (Please check this with Fuller, USA).

The compressor should be an oil free screw compressor with internal compression with a displacement of approx 60 m3/min at approx 2.5 bar maximum

Teus

Pneumatic Conveying Calculation Program

Posted on 27. Jun. 2007 - 03:09

Dear Armit

could you send pneumatic conveying calculation program

best regards

my addrress is

hwiman.cho@umicore.com

Pneumatic Conveying Calculation Program

Posted on 27. Jun. 2007 - 03:09

Dear Armit

could you send pneumatic conveying calculation program

best regards

my addrress is

hwiman.cho@umicore.com

rmsahu
(not verified)

Re: Design Calculations For Pneumatic Conveying

Posted on 27. Jun. 2007 - 05:28

Sir,

Again thanks for your prompt reply.Sir we are running the f.k.pump for last 20 years @ 155-160 tph with two compressor having designed FAD of 56m3/min each but measured value of FAD of 45 m3/min each at @ 2kg/cm2 pressure.We are upgrading the cement mill for 225 tph by installing V-Separator in the circuit so we are redesigning it for 225 tph.I am doubtful whether it will work smoothly at FAD of 60.6m3/min.Normal back pressure is coming around 1.0 bar but some time we are facing tripping of the F.K.Pump due to high back pressurre even at 155-160 tph.Please clarify our doubt for smooth functioning the pump at FAD of 60.6m3/min @ 225 tph.

Regards,

R.M.Sahu,

INDIA

rmsahu
(not verified)

Re: Design Calculations For Pneumatic Conveying

Posted on 27. Jun. 2007 - 05:28

Sir,

Again thanks for your prompt reply.Sir we are running the f.k.pump for last 20 years @ 155-160 tph with two compressor having designed FAD of 56m3/min each but measured value of FAD of 45 m3/min each at @ 2kg/cm2 pressure.We are upgrading the cement mill for 225 tph by installing V-Separator in the circuit so we are redesigning it for 225 tph.I am doubtful whether it will work smoothly at FAD of 60.6m3/min.Normal back pressure is coming around 1.0 bar but some time we are facing tripping of the F.K.Pump due to high back pressurre even at 155-160 tph.Please clarify our doubt for smooth functioning the pump at FAD of 60.6m3/min @ 225 tph.

Regards,

R.M.Sahu,

INDIA

Re: Design Calculations For Pneumatic Conveying

Posted on 27. Jun. 2007 - 06:39

Dear Mr Sahu,

The FK pump is the feeder of a pneumatic conveying system.

The feeder function of the FK pump is 150 – 165 tons/hr against the pneumatic conveying pressure.

For a FK pump, this pressure is limited at approx. 1.8 bar(o)

(For 150 tons/hr, the drive motor of the FK pump should be approx. 110 kW at 980 rpm)

Increasing the FK pump capacity from 150 tons/hr to 225 tons/hr will at least require a drive change to 165 kW at 1500 rpm (if possible – ASK Fuller bulkhandling USA) or a new FK pump or an additional FK pump.

As you already experience overload tripping of your present FK pump drive motor, due to high conveying pressure, this is an indication that the pneumatic conveying system needs to be redesigned, to keep the conveying pressure at a maximum of 1.8 bar at 225 tons/hr.

The redesign is given in my earlier reply.

Using the existing pneumatic conveying system requires a recalculation to find out if that is possible anyway. (diameters and air volumes)

success

teus

Teus

Re: Design Calculations For Pneumatic Conveying

Posted on 27. Jun. 2007 - 06:39

Dear Mr Sahu,

The FK pump is the feeder of a pneumatic conveying system.

The feeder function of the FK pump is 150 – 165 tons/hr against the pneumatic conveying pressure.

For a FK pump, this pressure is limited at approx. 1.8 bar(o)

(For 150 tons/hr, the drive motor of the FK pump should be approx. 110 kW at 980 rpm)

Increasing the FK pump capacity from 150 tons/hr to 225 tons/hr will at least require a drive change to 165 kW at 1500 rpm (if possible – ASK Fuller bulkhandling USA) or a new FK pump or an additional FK pump.

As you already experience overload tripping of your present FK pump drive motor, due to high conveying pressure, this is an indication that the pneumatic conveying system needs to be redesigned, to keep the conveying pressure at a maximum of 1.8 bar at 225 tons/hr.

The redesign is given in my earlier reply.

Using the existing pneumatic conveying system requires a recalculation to find out if that is possible anyway. (diameters and air volumes)

success

teus

Teus

Guest
(not verified)

System Design Calculations For Pneumatic Conveying

Posted on 29. Jun. 2007 - 11:03

Dear Amrit,

May I have a copy of your System Design Calculations for Pneumatic Conveying.

Thanks.

Marshall

Guest
(not verified)

System Design Calculations For Pneumatic Conveying

Posted on 29. Jun. 2007 - 11:03

Dear Amrit,

May I have a copy of your System Design Calculations for Pneumatic Conveying.

Thanks.

Marshall

Guest
(not verified)

Theory And Design Of Dilute Phase

Posted on 4. Jul. 2007 - 02:01

Dear Mr. Amrit Agarwal,

Thank you very much for promptly sending the article. Your lucid presentation was of great help to understand basics of design for my purpose.

I request you to kindly mail me your other articles.

Thank you for your time and co-operation.

Sincerely,

Vinod Mistry

Guest
(not verified)

Theory And Design Of Dilute Phase

Posted on 4. Jul. 2007 - 02:01

Dear Mr. Amrit Agarwal,

Thank you very much for promptly sending the article. Your lucid presentation was of great help to understand basics of design for my purpose.

I request you to kindly mail me your other articles.

Thank you for your time and co-operation.

Sincerely,

Vinod Mistry

Guest
(not verified)

To All Memebers

Posted on 6. Jul. 2007 - 11:32

Dear friends ,

here i am introducing an article which i saw about tranfer of dense/dilute phase. This artical i got it from Mr.Amrit T. Agarwal

Consulting Engineer. This is very useful article for pnematic conveying engineers and designers.

regards

prakash

Guest
(not verified)

To All Memebers

Posted on 6. Jul. 2007 - 11:32

Dear friends ,

here i am introducing an article which i saw about tranfer of dense/dilute phase. This artical i got it from Mr.Amrit T. Agarwal

Consulting Engineer. This is very useful article for pnematic conveying engineers and designers.

regards

prakash

Theory And Design Dilute Phase Pneumatic Conveyor System

Posted on 10. Jul. 2007 - 11:24

Mr Amrit

Thanks you by sent the article of Dilute Phase Pneumatic Conveyor.

Is very clear and usefull to understand and apply to the industry.

I'm designing a pneumatic vacuum system to transport PET (polyethylene teraftalate) and there are not many information about this subject

Regards

Theory And Design Dilute Phase Pneumatic Conveyor System

Posted on 10. Jul. 2007 - 11:24

Mr Amrit

Thanks you by sent the article of Dilute Phase Pneumatic Conveyor.

Is very clear and usefull to understand and apply to the industry.

I'm designing a pneumatic vacuum system to transport PET (polyethylene teraftalate) and there are not many information about this subject

Regards

Re: Design Calculations For Pneumatic Conveying

Posted on 11. Jul. 2007 - 07:01

Dear Amrit,

May I have another copy of your System Design Calculations for Pneumatic Conveying?

I am very interested in your articles and in the way that you can design a pneumatic conveying installation.

Thank you very much in advance

Alfonso

alfonso@boreasconsulting.net

Boreas Consulting SL

Re: Design Calculations For Pneumatic Conveying

Posted on 11. Jul. 2007 - 07:01

Dear Amrit,

May I have another copy of your System Design Calculations for Pneumatic Conveying?

I am very interested in your articles and in the way that you can design a pneumatic conveying installation.

Thank you very much in advance

Alfonso

alfonso@boreasconsulting.net

Boreas Consulting SL

Excel Based Sheet For Conveying

Posted on 12. Jul. 2007 - 04:39

Hello,

Does anyone have a copy of the excel based spreadsheet for the example calculation in Armit's"Theory and design of dilute phase pneumatic conveying systems" article. I am trying to copy the example to match the article results and I can not get the same numbers.

I would like to check my spreadsheet with a correct one to see what I am doing wrong in excel.

Thanks.

Excel Based Sheet For Conveying

Posted on 12. Jul. 2007 - 04:39

Hello,

Does anyone have a copy of the excel based spreadsheet for the example calculation in Armit's"Theory and design of dilute phase pneumatic conveying systems" article. I am trying to copy the example to match the article results and I can not get the same numbers.

I would like to check my spreadsheet with a correct one to see what I am doing wrong in excel.

Thanks.

rtelford - WorleyParsons HGE, Canada
(not verified)

Re: Design Calculations For Pneumatic Conveying

Posted on 12. Jul. 2007 - 09:56

Mr. Agarwal,

Thank you for sending the article entitled "Theory and Design of Dilute Phase Pneumatic Conveying Sytems". This is a relatively new field of study for me, and your article has been an excellent jump start.

I have taken your information and created an Excel program, very similar to yours. I have been experimenting with different values to obtain a grasp of pressure losses in these systems.

I do have the following questions:

1. This particular article is for dilute phase.

a. I have found there is a specific distinction between dilute and bulk phase pneumatic conveying, ie material to air ratio and maximum air/solid flow. What specific criteria do you use for defining a phase as dilute or dense/bulk?

b. If you have an article/literature/calculations on dense/bulk phase pneumatic conveyor design, I would be very interested in receiving it from you.

2. Pressure, Vacuum and Pressure-Vacuum systems ~ do you have information regarding of the application of these methods?

3. In your Worksheet #3, it appears that the "Section Number" from Worksheet #2 and #3 do not entirely agree; ie Section #10, the first vertical portion, does not show vertical losses in Worksheet #3. Have these rows been skewed? Please advise.

4. At the elbow, you mention that the particle velocity at the exit is 80% of the inlet particule velocity (p 20, Sect 2.4.1). For dP.acc, would this mean there is actually a negative pressure loss at the elbow, as deceleration is at work here? Please advise.

Thanking you in advance,

Ryan Telford.

rtelford - WorleyParsons HGE, Canada
(not verified)

Re: Design Calculations For Pneumatic Conveying

Posted on 12. Jul. 2007 - 09:56

Mr. Agarwal,

Thank you for sending the article entitled "Theory and Design of Dilute Phase Pneumatic Conveying Sytems". This is a relatively new field of study for me, and your article has been an excellent jump start.

I have taken your information and created an Excel program, very similar to yours. I have been experimenting with different values to obtain a grasp of pressure losses in these systems.

I do have the following questions:

1. This particular article is for dilute phase.

a. I have found there is a specific distinction between dilute and bulk phase pneumatic conveying, ie material to air ratio and maximum air/solid flow. What specific criteria do you use for defining a phase as dilute or dense/bulk?

b. If you have an article/literature/calculations on dense/bulk phase pneumatic conveyor design, I would be very interested in receiving it from you.

2. Pressure, Vacuum and Pressure-Vacuum systems ~ do you have information regarding of the application of these methods?

3. In your Worksheet #3, it appears that the "Section Number" from Worksheet #2 and #3 do not entirely agree; ie Section #10, the first vertical portion, does not show vertical losses in Worksheet #3. Have these rows been skewed? Please advise.

4. At the elbow, you mention that the particle velocity at the exit is 80% of the inlet particule velocity (p 20, Sect 2.4.1). For dP.acc, would this mean there is actually a negative pressure loss at the elbow, as deceleration is at work here? Please advise.

Thanking you in advance,

Ryan Telford.

wjswift
(not verified)

Theory And Design Of Pneumatic Conveying Systems

Posted on 16. Jul. 2007 - 02:12

Thank you Amrit T. Agarwal

Consulting Engineer

Pneumatic Conveying Consulting

Email: polypcc@aol.com

Ph and Fax: 304 346 5125

I recieved your article named "Design of Pneumatic Conveying Systems". It is a good and concise article that gives the basic principles of simulation of dilute phase systems. It has helped me a lot to validate my methods, although I would have liked to see estimation equations for the solid solid interaction friction.

Regards

James Swift

wjswift
(not verified)

Theory And Design Of Pneumatic Conveying Systems

Posted on 16. Jul. 2007 - 02:12

Thank you Amrit T. Agarwal

Consulting Engineer

Pneumatic Conveying Consulting

Email: polypcc@aol.com

Ph and Fax: 304 346 5125

I recieved your article named "Design of Pneumatic Conveying Systems". It is a good and concise article that gives the basic principles of simulation of dilute phase systems. It has helped me a lot to validate my methods, although I would have liked to see estimation equations for the solid solid interaction friction.

Regards

James Swift

Re: Pneumatic Conveying Calculations Method

Posted on 19. Jul. 2007 - 06:54

[

Amrit T. Agarwal

Consulting Engineer

Pneumatic Conveying Consulting

Email: polypcc@aol.com

Ph and Fax: 304 346 5125

dear mr amrit

i have gone thru all your messg in bulk poder handeling website and is very much impressed .

could yo please send me a copy of the article of following . "your article named "Design of Pneumatic Conveying Systems "

"... If you know basic Excel, you can use my calculation method published in Powder Handling and Processing magazine in its April 2005 issue. This article gives the theory and all of the equations that are internally used in computer programs. It takes the mystery out of the computer programs. I can send a free PDF copy if you need one...."

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

FURTHER ABOUT US , IS A COMPNAY CALLED PARTH ENGINEERING PVT LTD. DOING PNEUMATIC ASH HANDELING SYSTEM FOR BOILER ASH IN SUGAR INDUSTRY.

WE HAVE JUST STARTED OUR JOURNEY WITH TWO MAJOR ORDERS FOR 170 TON EACH IN TWO SUGAR MILL AND EXPECTED 10 MORE ORDERS IN NEXT SIX MONTH.

WE HAVE TIED UP WITH ONE LOCAL EXPERT IN PNEMATIC ASH CONVEYING SYSTEM HOWEVER WE WOULD LIKE TO GO TO DEEP INTO BETTER QUALITY OF DESIGNING , CONSULTANCY , MANUFACTURING AND ERECTION AND COMMISSIONING STAGE .

WOULD YOU PLEASE LIKE TO BE A PART OF US OR SUGGEST SOME INDIAN ORGANISATION WHO CAN BE A GOOD PARTNER FOR US.

ALSO I WISH TO MENTION THAT THIS TIME IS A HIGH TIME IN INDIA WITH LOT OF POWER PLANT COMING UP IN THE MARKET WHICH HAS GOOD OPORTUNITY FOR ASH HANDELING SYSTEM AS BEING A SOLUTION TO POLUTION PROBLEM .

LOOKING FORWARD FOR A POSITIVE AND SUPPORTIVE REPLY FROM YOU.

WITH BEST REGARDS

Sanjay Agarwal,

DIRECTOR

PARTH ENGINEERING Pvt. Ltd.,FF - 06 , First Floor,National Arcade, Plot No. 4,Local Shoping Centre,Ghazipur Main Road,Ghazipur, Delhi - 110 096

Tele/Fax : 011 - 22232137 , Telephone : 011 - 22240091 Mobile : 093130 55226 OUR E MAIL ADDRESS - sanjayagarwal.delhi@gmail.com

Re: Pneumatic Conveying Calculations Method

Posted on 19. Jul. 2007 - 06:54

[

Amrit T. Agarwal

Consulting Engineer

Pneumatic Conveying Consulting

Email: polypcc@aol.com

Ph and Fax: 304 346 5125

dear mr amrit

i have gone thru all your messg in bulk poder handeling website and is very much impressed .

could yo please send me a copy of the article of following . "your article named "Design of Pneumatic Conveying Systems "

"... If you know basic Excel, you can use my calculation method published in Powder Handling and Processing magazine in its April 2005 issue. This article gives the theory and all of the equations that are internally used in computer programs. It takes the mystery out of the computer programs. I can send a free PDF copy if you need one...."

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

FURTHER ABOUT US , IS A COMPNAY CALLED PARTH ENGINEERING PVT LTD. DOING PNEUMATIC ASH HANDELING SYSTEM FOR BOILER ASH IN SUGAR INDUSTRY.

WE HAVE JUST STARTED OUR JOURNEY WITH TWO MAJOR ORDERS FOR 170 TON EACH IN TWO SUGAR MILL AND EXPECTED 10 MORE ORDERS IN NEXT SIX MONTH.

WE HAVE TIED UP WITH ONE LOCAL EXPERT IN PNEMATIC ASH CONVEYING SYSTEM HOWEVER WE WOULD LIKE TO GO TO DEEP INTO BETTER QUALITY OF DESIGNING , CONSULTANCY , MANUFACTURING AND ERECTION AND COMMISSIONING STAGE .

WOULD YOU PLEASE LIKE TO BE A PART OF US OR SUGGEST SOME INDIAN ORGANISATION WHO CAN BE A GOOD PARTNER FOR US.

ALSO I WISH TO MENTION THAT THIS TIME IS A HIGH TIME IN INDIA WITH LOT OF POWER PLANT COMING UP IN THE MARKET WHICH HAS GOOD OPORTUNITY FOR ASH HANDELING SYSTEM AS BEING A SOLUTION TO POLUTION PROBLEM .

LOOKING FORWARD FOR A POSITIVE AND SUPPORTIVE REPLY FROM YOU.

WITH BEST REGARDS

Sanjay Agarwal,

DIRECTOR

PARTH ENGINEERING Pvt. Ltd.,FF - 06 , First Floor,National Arcade, Plot No. 4,Local Shoping Centre,Ghazipur Main Road,Ghazipur, Delhi - 110 096

Tele/Fax : 011 - 22232137 , Telephone : 011 - 22240091 Mobile : 093130 55226 OUR E MAIL ADDRESS - sanjayagarwal.delhi@gmail.com