good book for Jet

[nghiah5]

If you want design an vacuum ejector or more known about it.You can use this book :
link :

[link Point to another website Only the registered members can access] with chapter 6 : You can choice stage of ejector,design condensable ornon-condensate that entraine. Pressure discharge,pressure suction.
Have fun
Nghia

[theray99]

file not found
please upload it again@

[link Point to another website Only the registered members can access]

[nghiah5]

you can download this link :

[link Point to another website Only the registered members can access] enjoy,Nghia

[pigkyjoy]

thank you

[kaiserlev]

nghiah5,

01 - The best commercial book available regarding jet ejectors is :
´´Steam Jet Ejectors for the Process Industries´´ - author : Robert B. Power Ed. McGraw-Hill
It is relatively inexpensible, and you can easily get it by Internet. It has a lot of practical hints regarding the behavior of jet ejectors vacuum systems - the author is one of those ´´ lessons from the field´´ guys. His troubleshooting hints are really good.
He provide some hints in relation to the internal dimensions of ejectors, but I would not build an ejector based in his information - one can expect a bad performance of such an ejector.

02 - There is a very interesting paper ´´Evaluation of Steam Jet Ejectors´´, published by ´´Chemical Engineering and Processing´´
magazine. Their authors are Hisham El-Dessouky et all. They are researchers at Kuwait University. Basically, they compiled information about a lot of steam jet ejectors systems from american firms, and devised a statistical correlation that should give you the internal dimensions of jet ejectors, and also predict their efficiencies. Unfortunately, thet inform a correlation of just about 0,85 and 0,78 for their work - a very poor correlation. I have access to a lot of commercial vacuum systems, and their data do not correspond to the ones I have tested. I have found errors of about 30% to 40%. Definitely, it is not enough to start building and selling vacuum systems out there. :-).
Anyway, their bibliography is interesting.
One paper I have (and it is not in their list) is ´´An Investigation of Ejector Design by Analisys and Experiment´´, by Keenan, Neumann and Lustwerk (1950- yes, 1950). They depicted a one-dimensional model, that is a good start for researchers. Jet ejectors built using
their methods present entrainment ratios of about 70%-85% of the predicted value, and the discharge pressure - the worst problem, in my opinion - about 65%-80% of the predicted value.

03 - There is also a british institution called ESDU. They sell programs to calculate almost every type of jet ejector (with liquid or gas as the motive fluid, the same in relation to the entrainned fluid). They programs are not expensive, but their results - definitely - are not match to the efficiency of the equipments being supplied by the major manufacturers worldwide.

04 - Of course, as CFD came of age, these simplistic models are not used anymore. But, if you really want to understand and calculate jet ejectors, and predict their behaviour with some accuracy, you should have a very strong background in mathematics and thermodynamics. Any of the current models being used are not uni-dimensional anymore (they are two or three dimensional), and rely upon some very complicated systems of partial differential equations.
And, last but not the least, you should really test your models. Every major manufacturer in the world have testing facilities, to verify and develop the equipments they produce.

kaiserlev

[kaiserlev]

nghiah5,

01 - The best commercial book available regarding jet ejectors is :
´´Steam Jet Ejectors for the Process Industries´´ - author : Robert B. Power Ed. McGraw-Hill. It is relatively inexpensible, and you can easily get it by Internet. It has a lot of practical hints regarding the behavior of jet ejectors vacuum systems - the author is one of those ´´ lessons from the field´´ guys. His troubleshooting hints are really good.
He provide some hints in relation to the internal dimensions of ejectors, but I would not build an ejector based in his information - one can expect a bad performance of such an ejector.

02 - There is a very interesting paper ´´Evaluation of Steam Jet Ejectors´´, published by ´´Chemical Engineering and Processing´´ magazine. Their authors are Hisham El-Dessouky et all. They are researchers at Kuwait University. Basically, they compiled information about a lot of steam jet ejectors systems from american firms, and devised a statistical correlation that should give you the internal dimensions of jet ejectors, and also predict their efficiencies. Unfortunately, thet inform a correlation of just about 0,85 and 0,78 for their work - a very poor correlation. I have access to a lot of commercial vacuum systems, and their data do not correspond to the ones I have tested. I have found errors of about 30% to 40%. Definitely, it is not enough to start building and selling vacuum systems out there. :-).
Anyway, their bibliography is interesting.
One paper I have (and it is not in their list) is ´´An Investigation of Ejector Design by Analisys and Experiment´´, by Keenan, Neumann and Lustwerk (1950- yes, 1950). They depicted a one-dimensional model, that is a good start for researchers. Jet ejectors built using their methods present entrainment ratios of about 70%-85% of the predicted value, and the discharge pressure - the worst problem, in my opinion - about 65%-80% of the predicted value.

03 - There is also a british institution called ESDU. They sell programs to calculate almost every type of jet ejector (with liquid or gas as the motive fluid, the same in relation to the entrainned fluid). They programs are not expensive, but their results - definitely - are not match to the efficiency of the equipments being supplied by the major manufacturers worldwide.

04 - Of course, as CFD came of age, these simplistic models are not used anymore. But, if you really want to understand and calculate jet ejectors, and predict their behaviour with some accuracy, you should have a very strong background in mathematics and thermodynamics. Any of the current models being used are not uni-dimensional anymore (they are two or three dimensional), and rely upon some very complicated systems of partial differential equations.
And, last but not the least, you should really test your models. Every major manufacturer in the world have testing facilities, to verify and develop the equipments they produce.

kaiserlev

[aragorn]

File not found.please share in other site.
Thanks

[aragorn]

File not found.please share in other site.
Thanks

[aragorn]

File not found.please share in other site.
Thanks

[josefreitas]

Many thanks. An alternative to this dead link
hxxp://www.4shared.com/get/ruy6qCra/applied_process_design_for_che.html

[josefreitas]

Many thanks. An alternative to this dead link
hxxp://www.4shared.com/get/ruy6qCra/applied_process_design_for_che.html

[danielo]

please share "Steam Jet Ejectors for the Process Industries"
I need it.
thank u