For a surface type condenser used with a condensing type steam turbine, an Air extraction system is to be designed. What are the possible alternatives & what consideration should go in sizing of vacuume pumps? I would be grateful if anybody could provide some guidelines in this regard, or could suggest a relevent weblink.
regards
rs kothari
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Sizing Air Extraction System For Steam Turbine Condenser
Started by rsk, Nov 20 2008 07:42 AM
2 replies to this topic
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#1
Posted 20 November 2008 - 07:42 AM
#2
Posted 20 November 2008 - 11:05 AM
I believe it is the Heat Exchanger Institute (HEI) whose standards govern how much air infilration can be expected into a vacuum system. Check into that. For most large system, and I assume yours is a large system since you have a turbine/surface condenser, I've only seen steam eductors used for air extraction. Check with an eductor system supplier such as Graham or Croll Reynolds for their recommendations. I think both offer downloadable software for sizing such systems, but for the best quality results, check with a representative.
#3
Posted 20 November 2008 - 01:41 PM
I remember GEA website had been an excellent source of graphs and correlations for various vacuum systems - although this was several years ago. Anyway, you can check it.
http://www.geajet.com/
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