pressure sewer system modeling
pressure sewer system modeling
(OP)
I have a good working EPANET model of a large pressure system that has, say, 1000 2 HP grinder pump stations, 100 5 HP grinder pump stations, and 10 10+ HP pump stations. Obviously, all of these pumps are not running at once. If they were, the model correctly indicates that many would not be able to overcome the line pressure.
What ratio of pumps should I cut on to prove to myself that the system works? I have been unable to find any regulatory information. I know from inspection that the addition of one more 2 HP ginder pump has no ill effects but I need to demonstrate this for the State.
What ratio of pumps should I cut on to prove to myself that the system works? I have been unable to find any regulatory information. I know from inspection that the addition of one more 2 HP ginder pump has no ill effects but I need to demonstrate this for the State.





RE: pressure sewer system modeling
Also, you might consider asking the State what information they are looking for. I worked for a state regulatory agency years ago and they liked/expected questions.
RE: pressure sewer system modeling
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"Pumping accounts for 20% of the world's energy used by electric motors and 25-50% of the total electrical energy usage in certain industrial facilities."-DOE statistic (Note: Make that 99% for pipeline companies) http://virtualpipeline.spaces.live.com/
RE: pressure sewer system modeling
RE: pressure sewer system modeling
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"Pumping accounts for 20% of the world's energy used by electric motors and 25-50% of the total electrical energy usage in certain industrial facilities."-DOE statistic (Note: Make that 99% for pipeline companies) http://virtualpipeline.spaces.live.com/