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Hi CBMEngineer, Get in touch with Baker Hughes CENTRILIFT or SCHLUMBERGER regarding this issue. Galvanized steel is not adequate for corrosive gases so consider using monel armor instead. Moreover, consider using breathable cable jacket for gas swelling like CENTRILIFT breathable EPDM, lead ESP...

Hi waveout, The formula you're looking for is available at the iapws (International association for the properties of water and steam) web site : http://www.iapws.org/relguide/IF97.pdf (pp 33-35) a free software (WSProps) which is based on the iapws releases is available at...

Hi all, a free program (WSProps) for water and steam properties can be downloaded here: http://www.sourceforge.net/projects/innohex

Hi Kim, To make it short, the use of sealing strips depends primarily on the diametrical clearance between the shell and the tube bundle. As a general engineering practice, use of sealing strips (or another sealing device) is recommended when the shell-bundle diametrical clearance exceeds...

rmw Download it and see for yourself [tongue] zerok [pipe]

My mistake. here's the link. http://www.sourceforge.net/projects/innohex

Hi all, For those who are interested in Plate-and-frame heat exchanger design, a new version of PHE Works (2.0) is available for download. Download it from http://www.sourceforge.net/innohex Spread the word... zerok [pipe]

Krissmilek, -There are several excellent books on heat exchangers design for single and phase change applications. The most complete but expensive is Heat Exchanger Design Handbook (see begell house web site at www.begellhouse.com). See also process heat transfer (not from kern) by the same...

Boldfish, see the excellent book by Poling el al. "The properties of gases and liquids". zerok [pipe]

Hi NickT16, - As a general rule, fluids velocity should be maximized whithin the pressure drop limits of your process. Increasing velocity increases heat tranfer coefficients and reduces fouling especially for fluids containing suspended solids. - Consider using a multipass unit if the...

Hi Iken, The most comprehensive book is "Heat Exchangers Design Handbook". see http://www.begellhouse.com for details. Almost all commercial softwares (b-jac, tasc) for hX design are based on it. see also: process heat transfer by G. Hewitt. zerok [pipe]

Hi Cee555, try the NIST web book at http://webbook.nist.gov/chemistry/fluid/ for a an excellent text book see " The Properties of Gases and Liquids" by Poling et al. see also http://www.knovel.com. Hope this helps zerok [pipe]

Hi tronical, There was a similar discussion some month ago (see http://www.eng-tips.com/viewthread.cfm?qid=118735&page=3). I would suggest using a free software I've already provided a link to. It should give you a fair bit of insight. here is the link...

Mr Art, Good to have you back on the scene and wish you a quick recovery. All the best zerok [2thumbsup]

Hi Homayun, We had a TEG dehydration unit in our offshore plateform with a 500 000 sm3/d capacity. If you're using HYSYS there is a tutorial about gas dehydration with TEG. I'd recommend you have a look at the GPSA handbook (chapters 19 and through 20) to have an oveview of gas dehydration...

rmw Thanks for the input. sam I did some runs for you based on the plate dimensions you provided: - Chevron angle usually between 25 and 65°. - plate gap from 3 to 6 mm. Here's what comes out of it: Overall heat transfer coefficients: PHE1: plate gap(mm) 3...

Hi Kam999, Improper cleaning can effectively increase the pressure drop on the tube side. Excessive brushing or mis use of corrosive chemicals (acids) to remove scale increase the inside roughness of the tubes leading to an increase in the friction factor (and the pressure drop) on the tube...

Hi SamOntario, I think the manufacturer should be able to provide you with the plate dimensions. I will back calculate the chevron angle if needed (normally between 25 and 65°). Hope this helps. regards zerok

SamOnTario, Could you provide plate details for PHE1 and PHE4: - Chevron angle. - plates gap - plate width and/or length. - connections ID. I'll use the software ,I provided the link to, to give you some performance figures. zerok

SamOntario, I assume that Uc and Uf refer to the heat transfer coefficients for the cold and hot sides. The software does most of the calculations you need. After entering all required data, navigate to the summary view on the case inspector pane and check heat transfer coefficients in the...