Conversion from Kg to Normal cubic meters of Natural Gas. 2

[asimbutt80]

hi

we are running a power plant on Gas Turbine. its flow meter is showing reading in kg per hours . i want to get the consumption in cubic meters of gas. Keep in mind that i want units in normal cubic meters

 

[katmar]

This is a three step process.

First step: find out the molecular weight of your particular NG.

Second step: determine at what temperature and pressure your "Normal" conditions are defined. There are at least three conventions in common use.

Third step: download my free units conversion program called Uconeer from

http://www.katmarsoftware.com

This has a built-in converter for exactly what you want to do, provided you know your MW and P,T conditions.

 

[TD2K]

Great summary Katmar. Short, sweet and to the point.

We could almost make a FAQ for this particular question.

 

[zdas04]

TD2K,
I don't think "almost" applies.

Katmar,
Why don't you copy that post into an FAQ, the question comes up so often (and I still think that Uconeer is the best engineering tool I ever got for free, better than a lot of tools I've paid real money for).

David

 

[katmar]

TD2K

I agree with you (on the FAQ part of course!). Sometime back I threatened to make a FAQ for this because it comes up regularly in various forms. I have developed a bit of an outline and put down a few ideas, but I won't be hurt if you go ahead and do it ;-)

Several of the members here have posted excellent comments on this type of problem. What has put me off so far from actually doing it is sifting through all those posts and making sure I have covered all the bases.

 

[katmar]

David,

You and I were typing at the same time so I missed your comment before I submitted mine. I could make a simple FAQ using the post above, but the problem comes up in various forms such as

Converting mass to CFM or M3/H, and vice versa
Converting between ACFM, SCFM, M3/H, NM3/S etc
What are standard / normal conditions?
What is the density of air at T, P?

I think the FAQ needs a bit of an explanation of the Ideal Gas Equation so that readers can develop some fundamental understanding and then apply it to their problems. I know Art Montemayor (and probably others) has posted along these lines before.

I am facing some seriously urgent but very boring work - maybe writing this FAQ is just what I need to help put that work off a bit longer?

And thanks for the kind words about Uconeer.

Harvey

 

[Montemayor]

What?

No Star for Harvey? I'll proudly contribute mine and look forward to the upcoming FAQ.

Confidentially, I suspect we share the same dreads: preparing Tax Returns, preparing Expense Account Reports, and writing FAQs -- Oh, and also doing homework!

 

[zdas04]

Harvey,
I'm really of mixed feelings about expanding the post above. It was a specific answer to a question that comes up often.

If you do the work to turn that clean answer into a thermodynamics text, it could easily become so big that it becomes difficult to find the answer to the specifice question being asked above.

My choice would be to make a separate FAQ for each of your 4 points (that would effectively index them).

The big question is "where do you put the FAQ?" The questions come up here pretty often, but they also come up in many other places as well. I wish there was a cross-reference feature in the FAQ's so that you could put it wherever you want and put a link to it in all of the other places. Maybe I'll bring that up elsewhere.

David

 

[katmar]

David,

You are 100% right - it could easily become something that would frighten off the very people we want to help. I like your idea of a multi-part FAQ linked together somehow. Is there a way you can link to a FAQ that has not yet been written? We are now way off topic and maybe we need to take this discussion elsewhere?

I see Art has just submitted one of his clear and concise postings on the Ideal Gas Equation to a query on this page, and that could very easily be one of the four. I'm sure that with a bit of searching through the old threads we could quickly find existing material to cover the bases.

Thanks for your suggestions
Harvey

 

[mbeychok]

.
Most, if not all, of the equations for the conversions discussed in the previous messages in this thread are presented and thoroughly explained in www.air-dispersion.com/formulas.html <== click here.

Milt Beychok

 

[Kenwasson]

Thank you mbeychok for this excellent advice/post