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  1. S

    Flow 'seems' to increase with Filter Choked SGT 700

    First of all, thank you for the reply. Let me get to it point by point 1. The Dp.fan has a tripping on value falling below a certain value thus indication the flow is insufficient for ventilation. This is how the system is, current value of Dp.fan is 0.5kpa, if it falls below 0.1kpa machine...
  2. S

    Flow 'seems' to increase with Filter Choked SGT 700

    SGT 700 has a simple arrangement for ventilation of the GTG enclosure, a fan sucks in air from the atmosphere through a filter, pushes into the enclosure from one end and the air leaves the enclosure on other end. The Dp.filter has no tripping setting but only shows an alarm after the Dp...
  3. S

    Gas turbine

    A Tripped an would mean loss of vacuum in the LO tank. Hence the oil will not drain as quickly as it should. There is a chance that the oil may breach the mechanical seals, escape onto the shaft and potentially cause a fire or an explosion. (Especially the Air Comp Discharge/Combustion Chamber side)
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    Siemens SGT 800 Barring Block

    Start Motor on SGT's is pretty reliable. A couple of points that you should keep in mind 1. Keep a Diesel Generator Ready for cases of complete Power Loss, it will help avoiding the block 2. Always keep an eye on the ventilation fans. at time electrical fault appears on both fans after a...
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    Bleed valve function

    I am working with SGT700, the Compressor has two Bleed Valves, BV1 & BV2. BV1 being near the suction end, and BV2 near the discharge end of the compressor. The description I gather from the discussion is very accurate. During start both are fully open. while accelerating, BV2 starts closing...
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    High Pressure on Lube Oil Tank

    Schade!! Anyways thanks for the consideration!
  7. S

    High Pressure on Lube Oil Tank

    P&ID's are restricted... The Main pumps supply the oil through lo cooler, the Temp Control valve (3 way with cooler bypassing) and then the lo filter. The LO circuit then bifurcates into 2 loops: low pressure loop (goes everywhere except bearing 2), hp loop goes to booster lo pumps then to...
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    What is the impact of High Exhaust Pressure on HRSG?

    Higher Back pressure means the HRSG offers resistance to the flow of flue gas. i think this should be around some optimum value as too high resistance would mean not enough flow too less resistance would mean the flue gas moves out too easily leading to an inefficient heat transfer
  9. S

    High Pressure on Lube Oil Tank

    I am working with SGT 700 and we are facing a similar problem. The machine is 'new' (`~6months in continuous service, part load ~50%). The lube oil tank pressure has been on the rise recently (normally would be around -4.2kpa, after last shutdown at start it didn't go below -3.3kpa its been a...
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