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EMD 645 - Need Fuel Flow Meter Help
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Source：Internet Author：Unknow Pubdate：2008-04-26
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Enuf2bDangerous (Electrical)
3 Jan 08 21:43
Hello -
I have several stationary EMD 645's diesel engine generators on which I would like to install fuel flow meters on both the inlet and outlet fuel lines.
I expect the max flow rate to be less than 5 gpm. The meter needs to have a pulse output, although 4-20 ma may be acceptable, to talk to our SCADA syste. A register would be nice; an electronic (digital) registered would be preferred, if available.
Could anyone recommend an appropriate flow meter to use in this application? (These engines are in the USA).
Thanks!
ccfowler (Mechanical)
4 Jan 08 22:38
I would only use positive displacement meters for this application.
Obviously, actual fuel consumption will be calculated from flow differences (in vs. out) so metering errors will be compuonded and be further augmented by high turn-down ratios also being involved. In order to get decent accuracy on the calculated fuel consumption, only positive displacement meters can satisfy these needs. Be careful to size them properly (no larger than necessary with only minimal sizing margins) since oversizing the meters will jeopardize both accuracy and turn-down. 字串1
On these engines, actual idling vs. full load fuel consumption rates will involve turn-down ratios greater than 50:1. It would be wise to pay attention to temperatures. Depending on the specific installation, in vs. out fuel temperature differences can affect the accuracy of the calculated fuel consumption significantly, so depending on your accuracy needs, temperature compensation may be needed, too.
Enuf2bDangerous (Electrical)
4 Jan 08 23:08
Thanks for your input - your comments steered me towards Flow Data - they make what you described, exactly for my engines.
jmw (Industrial)
8 Jan 08 11:58
Or visit Flow Technology Inc (http://www.ftimeters.com/ and if you are in Europe or the UK then visit www.viscoanalyser.com) who can provide a complete package or just the flowmeters.
JMW 字串9
www.ViscoAnalyser.com
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