Recent content by shahabas

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    GT Driving Centrifugal Compressor

    Sir, GT drives Centrifugal compressor, any possibility without running the GT the reverse rotation can be happen from load compressor side to turbine? I have face a problem, without starting GT I got the rpm from speed sensor and bearing #1 & #2 radial vibration. Is there any possibilities...
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    Fuel Gas Supply Line

    Problem is fail start due to excessive fuel flow. But while analyzing the trend, i found that the down stream pressure of the shutoff valve #2 increases before the opening of the valve. So it seems passing, I want to know the small passing can be reach 42 barA within 74 msec?
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    Fuel Gas Supply Line

    In a fuel gas supply line i have the two shutoff valve (valve #1) Woodward gsov25, and PT that measures the down stream pressure of the shutoff valve #2. The shutoff valve will open once the turbine ready to fire. But the down stream pressure of the valve #2 increases to 42 bar within 74msec...
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    Mark Vie Controls

    hello Mr. YD, I have two controllers T40 and T10. Both controllers storing the value of gg speed. But before initiate the L4T signal. the speed value in T10 controller decreases rapidly around 3000 rpm within the 43 sec before L4T activation. but value on T40 controller not decreased, it...
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    Mark Vie Controls

    But speed starts to decrease before L4T signal activation. That's why I had doubt about that?
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    Mark Vie Controls

    While am analysing the trend data of a PGT 25+ Gas turbine I found that there is T40 and T10 controller? Can you explain about that controller? Few seconds before the Trip activation the speed signal on T10 controller decreases rapidly around 3000rpm within 43sec. How it can happen please...
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    Mark VI Trend Values

    In the trend has a reading Left value and right value. What its meaning please explain?
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    Aeroderivative Engine PGT25+G4

    Thank you very much sir. I understand perfectly. While go through p&id, I couldn't understand why the electrical pumps are not in aeroderivative engine for synthetic oil pumping. Now I understand the reason.
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    Aeroderivative Engine PGT25+G4

    Hi sir, Thanks for your reply. I have a question, during first startup. How the AGB will lubricate? The PL-1 will pump synthetic oil to AGB after startup only, so it means AGB drive the pump accessories without lubrication? In a frame machine we have 88QA&88QE for mineral lube oil...
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    IGV Control On

    GT at low load and the IGV at minimum angle, the IBH valve will open around 5% flow rate, that is the logic for the IBH, even at hot region. The effect of closing IGV and open IBH valve to increase the inlet air temperature by axial compressor discharge air through IBH, to allows the DLN-1...
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    Aeroderivative Engine PGT25+G4

    In aeroderivative engine PGT25+G4, synthetic oil system don't have AC pump to pump the oil to AGB? Why there is no electrical pump, only AGB driven PL-1? [email protected]
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