How to calculate the cost of wasted steam?
How to calculate the cost of wasted steam?
(OP)
I would like to know if anybody could tell me how to calculate what the cost is to replace 200 psig of steam. What I'm trying to do is fiqure out what it's costing us in burning natural gas in the 501F dln gas turbine to reproduce 200 psig of steam. This 200 psig of steam is sent to HP dump and to the condenser, Start up vent and superheater drains on start up. This steam is being wasted before we even have flame in are turbine and at this point, flow for cooling and condensate removal should not be an issue, but I'm trying to convence those higher powers above me! Can anybody help? This steam that is wasted is not measured in kpph(flow) All I have for a reference is HP drum pressure and 200 psig is about what we throw away before pressure start gaining again. Thanks for any infor you may provide. Note, Equipment info, Siemens 501fg Gas turbine, N.E. 3 pressure hrsg. HP steam 2400 psig rated. Normal op. is 1700 psig with out duct burners.
FLORIDA,
BIGDOG50





RE: How to calculate the cost of wasted steam?
A few more pieces of data would be helpful: The steam temperature and pressure, and the pipe size (diameter and schedule).
RE: How to calculate the cost of wasted steam?
There are a lot of reasons to have steam in the system before you fire. Pre-heat and de-airiation are two that come to mind.
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Corrosion never sleeps, but it can be managed.
http://www.trenttube.com/Trent/tech_form.htm
RE: How to calculate the cost of wasted steam?
RE: How to calculate the cost of wasted steam?
thanks
FLORIDA,
BIGDOG50
RE: How to calculate the cost of wasted steam?