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mechman
12-12-2013, 11:48 AM
Hi Oakes
What is the recomended velocity for wet return lines of flooded overfeed systems in horizontal lines?

thks

frank
12-12-2013, 03:48 PM
NH3 is not my area but I found these on the net

http://www.evapcoasia.com/sites/evapcoasia.com/files/131a_-_piping_brochure_2_0.pdf

http://www.beverageindustries.com/media/W1siZiIsIjIwMTIvMDkvMjcvMTQvNDcvMDgvNDA5L09FTV9NYW51YWxfUmVmcmlnZXJhbnRfUGlwaW5nX0d1aWRlbGluZS5wZGYi XV0

http://lib.ugent.be/fulltxt/RUG01/001/311/694/RUG01-001311694_2010_0001_AC.pdf - see chapter 19

Josip
12-12-2013, 07:11 PM
Hi, mechman :)



Hi Oakes
What is the recomended velocity for wet return lines of flooded overfeed systems in horizontal lines?

thks

Try this program:

ftp://software.danfoss.com/RA/DirCalc/DirCalc.zip

and read those documents:

http://www.ishraepune.org/documents/Liquid%20overfeed%20systems%20by%20R.%20P.%20Paranjpey.pdf

http://www.reta.com/assets/resources/assets/314/original_2010_Issue_3_-_Ammonia_Refrigeration_Systesm__by_LF_%27Tex%27_Hildebrand.pdf?1374851322

https://www.osha.gov/SLTC/etools/ammonia_refrigeration/references/iiar_handbook.html

http://www.google.hr/url?sa=t&rct=j&q=&esrc=s&source=web&cd=5&cad=rja&ved=0CEwQFjAE&url=http%3A%2F%2Fwww.arab-eng.org%2Fvb%2Fattachment.php%3Fattachmentid%3D19415%26d%3D1187771802&ei=CASqUvuIOMv04QTOqIDIBA&usg=AFQjCNFEIFHfATiUtnSzPkiu0k6UE0ObBA&sig2=vo7A65zCcwDf-_VQFYwU7Q&bvm=bv.57967247,d.bGE

http://www.ammonia21.com/web/assets/link/T394.pdf

http://www.google.hr/url?sa=t&rct=j&q=&esrc=s&source=web&cd=8&cad=rja&ved=0CGMQFjAH&url=http%3A%2F%2Fwww.ashrae.org%2FFile%2520Library%2FdocLib%2FJournal%2520Documents%2F2011%2520Augus t%2F036-043_jekel.pdf&ei=CASqUvuIOMv04QTOqIDIBA&usg=AFQjCNFWsxoQ3jTliVncvdFdg4niMw8T5Q&sig2=wjQNoK8h1mIAeafCGmLqxQ&bvm=bv.57967247,d.bGE

https://www.ashrae.org/File%20Library/docLib/Journal%20Documents/2011%20August/036-043_jekel.pdf

http://www.elforsk.dk/elforskProjects/340-010/Elforsk_340-010_Elimination_of_wet_return_final_report.pdf

Best regards, Josip :)

mechman
12-01-2014, 09:26 AM
What table should be used for wet return line, suction or liquid tables?

Peter_1
12-01-2014, 01:16 PM
Liquid tables

Peter_1
12-01-2014, 01:19 PM
Josip, good links, saved all