Steam Meter Suggestions
Steam Meter Suggestions
(OP)
I operate the utility system on a large campus and in an effort to get the energy use under better control I am planning on replacing the current steam sub-meters with newer ones with some better communication options. The current ones (shedders) are pushing 15 years old and have some turndown issues. Some areas see a turn down as high as 30 to 1. I am wonder what success has other people had with what types of meters. Also has anyone used the wetted ultrasonic meters?
Just FYI
the steam is to meter 120 PSIg saturated.
Just FYI
the steam is to meter 120 PSIg saturated.





RE: Steam Meter Suggestions
I also have prices for ultrasonic meters for steam but haven't had the chance to use it (yet).
Stop at: http://www.rosemount.com/products/flow/mprobar.htm
RE: Steam Meter Suggestions
the averaging pitots (mass probar's etc.) are fine, but you have to pay close attention to all of your installation details, that thats good advice for any flow meter come to think of it...
RE: Steam Meter Suggestions
Good Luck
RE: Steam Meter Suggestions
MRGJR I have tried wireless this and that but the granite and marble that make up most of my buildings limits them. I have been using ModBus on most of my meters.
RE: Steam Meter Suggestions
Endress+Hauser vortex meters come with tuning fork type mechanism which directly gets connected to the shedder bar unlike the strain gauges used in other makes. This will help you getting accurate results even when the pipe vibrates. Other mechanisms require separate filters to nullify the pipe vibrations.
Have you thought of HART?
Regards,
RE: Steam Meter Suggestions
what is the cost per measurement that you have to work with?
RE: Steam Meter Suggestions
hacksaw, what temperature issues are you refering to? I would like to know all the drawbacks to every technoogy. I don't have a cost per measurement number to work with as these really aren't for cost recovery they are mostly to manage an 8 figure steam annual cost.
RE: Steam Meter Suggestions
the temperature rating is dictated by the design specifics of your particular vendor. i am referring to the fluid temperature. as long as you are dealing with saturated steam most vendors don't have a problem but you have to ask.
at $5/lb sounds it appears that you like 50000 lb/hr system (25000 kg/hr) or so, depending on the amount of make up you have and your fuel cost.
what level of superheat are you running?
RE: Steam Meter Suggestions
but I want to make sure I get one that meets all my needs. depending where in the system and the load it can run with a 3-4 degree superheat to saturated. I will have to inquire about performance with these conditions
RE: Steam Meter Suggestions
RE: Steam Meter Suggestions
JMW
www.viscoanalyser.com
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RE: Steam Meter Suggestions
Thanks
Alex
RE: Steam Meter Suggestions
... you can download the calc prog from here
http://www.lavell.lnk.pl/str/soft/soft.html
RE: Steam Meter Suggestions