Fuel Consumption

Measure the tank level at two separate times. Subtract according to the shape and size of the tank. Or read the turbine manual for fuel consumption figures.

my friend it is a gas no more tank it is flowing in pipe line with pressuer of 25 PSI.

we donot have flow meter. is there any formula to claculate the fuel consumption rather than this formula

heat rate = heat consummed/ power generation

whereas the heat consummed is fuel consumption *higher heating value.

Just check the gas bill next month.

i have the gas bill for last monthes.

what can i do?

do you have any suggestion.

I have lots of suggestions about where you can put the bill. But, read it first.

Take volume of gas used divided by the number of minutes in billing cycle and get gas average of gas used per minute.

Dear brother;

We are in power plant no more tanks for the gas. It comes from other company underground pipe line and when it enters our company will be up ground first we filtered it tow time and then it will come to the gas turbine and enter the combustion chamber. The question when we receive the bill and check the amount of price not matching with our calculation means our calculation for the fuel gas consumption is not correct. I hope you understand know my problem

Regards...........

Buy and install a totalising flowmeter, then.

actually there is a project going on regarding this matter but the projet not yet finish

what can we do for current time

i would ask you one question do you have background about the subject

<...do for current time...>

Follow #6 above.

You need a meter.

In the mean time you could tell whoever is in charge of this project to "Hurry up"!

Or if on a grid, without tank, read the meter and divide by days, hours, minutes or seconds.

I'm pretty sure the gas supplier has a totalizing meter. Do you distrust it? If so, get your own meter, as PW suggests. Then you can duke it out with the supplier....

i donot understand you

In order to to bill you for fuel, the fuel supplier normally has a totalizing meter at the point where fuel is fed into your facility. You too can look at the meter, subtract an earlier reading from a later reading, and divide by the time in between. But if you distrust the fuel supplier's meter, you could add your own meter downstream of theirs. If your meter then shows differently, you can then "duke it out" (negotiate or dispute) with the supplier. If your jurisdiction has a bureau of weights and measures, you might ask them to check the calibration of the supplier's meter.

(These concepts are so commonplace that I had a hard time expressing them.)

let me see and then come back to you

No need to come back.

Nike: "Just do it. √" (usual disclaimer).

" . . . duke it out . . ." is slang for "fight with" the supplier.

I heard a story about a steel mill's gas metering. The supplier had 4 meters on their side of the fence, while the steel mill had 3 meters on the mill's side of the fence. Once a month they would meet, take 7 meter readings, and negotiate the gas bill for that particular month.

If you get a bill for 1000 cubic meters of gas for 30 days, you fuel consumption is 1000 CM/30 days, or 33.3 CM/day.. You can adjust the units to suit your preference. (I like the english FSF measurement system, furlongs/stone/fortnight. Most others use SI or IP systems)

Sonic Flow -- P1/P2 > 1.9	Sub-Sonic Flow -- P1/P2 < 1.9
Important Nomenclature: K = Gas Units Constant fT = Temprature Correction Factor P1 = Upstream absolute pressure P2 = Downstream Absolute pressure Q = Gas flow DeltaP = P1 -P2

Goggle

Heres another google search result.

"A simple-cycle gas turbine used for power generation has a thermal efficiency of about 34 percent. Since 1 kwh is theoretically equivalent to 3,415 Btu, the simple-cycle gas turbine has a fuel connsumption of: 3,415 / 0.34 = about 10,000 Btu/kwh. Given the heating value (i.e, heat of combustion) of a fuel, we can easily calculate the simple-cycle gas turbine fuel usage. For example, natural gas has a net heating value of about 21,500 Btu/pound. Thus, the natural gas consumption in a simple-cycle gas turbine would be: 10,000 / 21,500 = 0.47 pounds/kwh = 0.21 kg/kwh. As another example, a typical diesel oil has a net heating value of 130,000 Btu/gallon. Thus, the diesel oil consumption in a simple-cycle gas turbine would be: 10,000 / 130,000 = 0.077 gallon/kwh. (The gallon used just above is the U.S. gallon rather than the Imperial gallon) A combined-cycle gas turbine will have a higher thermal efficiency and, hence, lower fuel consumptions."