Community Status Updates
Chris Haslego
New Download Available - API Retention Time Calculator - http://www.cheresources.com/invision/files/file/256-api-retention-time-calculator/ New Download Available - Nitrogen Charge Estimator - http://www.cheresources.com/invision/files/file/255-nitrogen-charge-estimator/
Nov 07 2011 02:29 PM
ChristaS
Check out the news headlines in ChExpress: http://www.cheresources.com/invision/blog/17/entry-184-chexpress-november-1-2011/
Nov 01 2011 07:06 PM
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eman3001
Yes! what are your particular needs ?
Dec 28 2011 01:26 AM
Chris Haslego
Did you know that you can add our blogs to your favorite RSS reader? Add this URL: http://www.cheresources.com/invision/rss/blog/
Oct 27 2011 07:47 PM
Chris Haslego
New Blog Entry: Online Store Transition Complete - http://www.cheresources.com/invision/blog/1/entry-160-online-store-transition-complete/
Oct 25 2011 11:57 AM
Chris Haslego
New Blog Entry: Standard Conditions of Temperature and Pressure - http://www.cheresources.com/invision/blog/4/entry-159-standard-conditions-of-temperature-and-pressure/
Oct 24 2011 07:26 AM
ashubiet → ankur2061
Dear Sir, I am a chemical engineering graduate and working in a natural gas based petrochemical plant. I need to calculate "cracked gas compressor's efficiency". The problem that I m facing is, how to update the value of Cp/Cv (=k), considering the changes in gas's composition (undergoing compression). As u must know, we deal with a mixture of H2, CH4, C2H2, C2H4, C2H6, C3, C4......n so on (say....nearly 8 major components). Also we have got 4 compression stages, so 8 terminal...
Oct 21 2011 12:42 AM
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ashubiet
I do have all T and P values, along with mole fractions of component gases. Now how to get individual Cp and Cv values of a gas (say CH4) at given T and P. Also, after getting Cp and Cv , what value I should consider in my calculations? "k" based on compressor stage's inlet conditions or outlet conditions?
Oct 21 2011 01:06 AM
Chris Haslego
New Blog Entry: Tips for Giving a Technical Powerpoint Presentation - http://www.cheresources.com/invision/blog/4/entry-157-tips-for-giving-a-technical-powerpoint-presentation/
Oct 20 2011 11:30 AM
ChristaS
ChExpress is here with your news from around the world: http://www.cheresources.com/invision/blog/17/entry-156-chexpress-october-18-2011/
Oct 18 2011 06:50 AM
ChristaS
ChExpress is here with your news from around the world: http://www.cheresources.com/invision/blog/17/entry-156-chexpress-october-18-2011/
Oct 18 2011 06:50 AM
Chris Haslego
New Blog Entry: Cool Videos for Chemical Engineers - http://www.cheresources.com/invision/blog/1/entry-155-cool-videos-for-chemical-engineers/
Oct 12 2011 09:16 PM
Chris Haslego
Ankur has a great new blog entry -Boiler Feed Water Design Notes - http://www.cheresources.com/invision/blog/4/entry-154-boiler-feed-water-impurities-treatment-blowdown-and-cycles-of-concentration/
Oct 11 2011 03:48 PM
Chris Haslego
Five (5) new members just received upgrades for their community service: shan, pawan, A mukherjee, ogpprocessing, rsk. Could you be next? http://www.cheresources.com/invision/blog/1/entry-98-introducing-our-community-service-program/
Oct 06 2011 09:47 PM
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cheminfo
amir hastam az iran.reshteye shoma chi bode?alan tahsil mikonin?
Oct 06 2011 07:20 AM -
Arezoo
rastesh man inja dars nemikhoonam, vali midoonam har saal inja be ye seri paziresh mide, bayad berid too websitesh va apply konid
Oct 06 2011 07:46 AM

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