What will be the Output from a Gas Turbine on 4000 Meter Elevation?

Why not ask the manufacturer of the LM6000 . Afterall a 6.0 MW Turbine thats need to be intalled at elevation 4000 m is their job to highlight. is it not so????

Jihad....

Why is it that everyone on the CR4 forum expects others to do thier work..??

Is there a problem with your keyboard or perhaps you can't you use GOOGLE ?

Try the search terms "LM6000" "gas turbine" and "altitude"

I depeds on your requirement. If you are not so keen on accuracy, do the following:

1. Get LM6000 power output at ISO conditions, 15 C, 0m, 60% RH - GE website

2. Get temp & RH correction curve - google

3. Get altitude correction curve - from memory it's little more than 1% drop for every 100m

4. Apply the necessary correction and get the resultant power output.

thanks to all of you!

First off all i ask people by GE but After nearly 1,5 week withoud reply i give it a chance to ask it here,

i also trey to google it but did not succeed.

Ad the meantime i find out that avery 30feet you drop 1 Mbar wat result in 444 Mbar on 4000 meter this will give me a powerdrop from around the 44%

I know this is not a engineering department but sometimes you need a opinion from a friend.

one day i can give my opinion to help somebody,Im anyway not ashame to ask a opinion overhere!

GE after a week did not ANSWER my request,I even send it to control engineers from them!

1013 Mbar is pressure on Sealevel! evry 9,144 Meter 1Mbar less

First off all i ask people by GE but After nearly 1,5 week withoud reply i give it a chance to ask it here,

i also trey to google it but did not succeed.

Ad the meantime i find out that avery 30feet you drop 1 Mbar wat result in 444 Mbar on 4000 meter this will give me a powerdrop from around the 44%

Guest - it is your fault then, you should have first pasted the above , detailing your problem, sharing your efforts nad then asking CR4 members with a registered name and then asked help so we'd not have been pissed of.

Guest - it is your fault then, you should have first pasted the above , detailing your problem, sharing your efforts nad then asking CR4 members with a registered name and then asked help so we'd not have been pissed of.

__________________
Sorry Janid

registered name sorry.

Guest - Sorry I thought he entered as a guest.

Janid - i take back my sorry . you did enter as a Guest.

It's not a problem I also understand your concern!

Plenty of people trey to use this site as a engineering site!

I trey to find the right idea, and willing to double check it in a open forrum.

I thank you and all others to try to help out some colleague

Jan

best source is still the OEM (pester him)

Since a few GE turbines deliberately spray in atomised water in compressor stage to cool the air (efficiency improvement). This if controlled will have a lot of effect in neutralising the ambient RH, temperature etc. Only the part unaffected may be the pressure.

Have you already have the GT with you? If it is still to be purchased, i don't see why GE is not responding to a potential customer.

I will tell you why.

Recently past 6 moths i am flooded with proposals after proposals, P & ID Drwaings, scope supply , financial calculation after calculation from over 20 Clients seeking Coal gasification Power generation and Coal-fired Power Boiler + Steam Turbine. I am literally pissed off with them coming back to be again and again with various MW variation. Even my manufactuters are pissed off. So, finally since last week i started demanding Token advance $ 600 - $ 1000 (refundable after order) prior to undertaking any financial. Now things have come down by 99.9% and only those who pay are the serious buyers else or ITass (information-technology-seekers).

So GE too will not reply unless they are 100% sure you'll buy.

Dear Mr. Janid,

At 4500 Metres above the Sea Leve Ihave the atmospheric Pressure data as 0.583 Kg/cm^2 OR 429 MM. HOWEVER FOR ANY SPECIFIC HEIGHT from the SEA LEVEL the atmospheric pressure can be calculated by using the formula given below

Air pressure above sea level can be calculated as

p = 101325 (1 - 2.25577 10^-5 h)^5.25588

where

p = air pressure (Pa)

h = altitude above sea level (m)

From the above formula the density of air can or mass of air used by Gas Turbine can be calculated and energy released by fuel can be calculated and arrive at the output from the Turbine by multiplying with Efficiency.

DHAYANANDHAN.S,

CR4 MEMBER,

INDIA

It is not so simple.

As the density falls down,

First based on the data, the compressor stage output is to be calculated (and from that the available oxygen for the combustion) - quantity, pressure at the combustion chambers.

Second based on ambieent temperature, density, RH levels, the temperature at conpressor outlet (and hence at the combustion inlet)

The control system should be tuned for the fuel injection corresponding to it.

The internal sealing mechanism is likely to misbehave (all being fin seals from start to end)

Then comes the turbine stage - what will be the velocity available at the buckets

The last is the exhaust - energy exited.

The system is too complex to do off hand. That's why I recommended the GE (or any other manufacturer) to provide the data. In fact 4000m is a bit extreme _{(where in the world is it getting installed? at that level everywhere is supposed to be highly ecosensitive zones)} And likely the manufacturer has to re-calculate and may be redesign the GT for efficiency.

Dear Guest,

Your views are O.K.

But 4000 Metres height is VERY SMALL when compared to JET PROPELLED AIR CRAFTS, like BOEING and AIR-BUS, flying at 10500 Metres Height and travelling at a speed of 800 to 850 KM per Hour Speed.

Super Sonic Flights (Example - French Made Air craft- CONCORD) flying at Speed of Mach 1.8 to 2 at an Altitude of 21000 to 21500 Metres height, successfully operating and ofcourse on account of high fuel price, it was UN-ECONOMICAL and stopped.

DHAYANANDHAN.S,

CR4 MEMBER,

INDIA.