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Regular Contributor

Re: G3520E GZE 100% opening Throttle Position

not like telling you but you're lean gas, if the red curve is the gas air ratio you're out as a missile, you have to stand on the 18-1 16-1, no other than otherwise there is a tool reading problem, you controlled the output

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Re: G3520E GZE 100% opening Throttle Position

[ Edited ]

Hi.What time of engine operation, in which country do you live,what is the air pressure before the throttle and in the intake manifold when the engine load is 100%, what is the temperature in the cylinders and exits the turbine, the temperature of the air flow throttle valve, the control line pressure differential throttle working properly .

New member

Re: G3520E GZE 100% opening Throttle Position

Schedule Throttle Act 1.bmp

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New member

Re: G3520E GZE 100% opening Throttle Position

Hi. Next to cost the same machine, works with the same parameters and on the same fuel.
We think that the problem in the turbine. Who has experience in diagnosing a turbine?
 
Regular Contributor

Re: G3520E GZE 100% opening Throttle Position

So, I think your problem is a high humidity in fuel, in fact the fuel air ratio is completely wrong, the fuel throttle opening factor is at least 5% below the normal opening required, after checking the specific fuel weight, and testing,

Greetings Gordini

New member

G3520E GZE 100% opening Throttle Position

Hi,

The problem is the following when the engine is fully loaded Throttle Position 100%. So the engine slowly reduces the load. 

The cleaning of the fuel valve. Replacement of sensors In Man Pr.(abs). 

rpm=1500

 

Gen kw=1950

T/C outlet pr.(abs)=340kpa

In Man Pr.(abs)=340kpa

Throttle Act pos command=100%

T/C comp bypass valve pos com=0%

Mass fuel flow = 347

Grid Status=on

Gov type setting=isochronous

Eng speed droop=0%

Actual Air to Fuel Ratio=27.9

Fuel valve pos=60%

Fuel press(abs)121kpa

Fuel valve diff press=30kpa

Fuel temp=11degC

Gas spec grav=0,6

Fuel quality=34.2MJ/nm3

Actual Charge density factor=1.1

Desired Charge density factor=1.15

Gas fuel corr factor=85%

 

Inlet air temp=47degC

I can send the engine work file .sdf