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  • Users: ahung
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  1. ahung

    Up date 7EA Combustion system. Dual fuel Dry Low NOx nozzles

    Our company bought two 7001EA Combustion Turbines. These units have conventional natural gas only fuel nozzles and we need to up date the combustion system to Dual fuel (natural gas and fuel oil #2) Dry Low NOx (DLN) fuel nozzles. According to the company in charge to do the job is necessary...
  2. ahung

    Gas Turbine Power Augmentation using Fogging System

    Does anyone know or have any experience using Fogging system for power augmentation in gas turbine (501D5) operating in symple cycle? I have some questions: How many additional MW can you obtain using this Fogging system. One of site condition is the average humidity around 70% How much...
  3. ahung

    Maintenance strategy based on Reliabilty Centered Maintenance (RCM)

    In our power plant we have five (5) combustion turbines burn natural gas on simple cycle. Normally when we do the major outages (Hot gas Path Inspection or Major inspection) in average each three year (24.000 hours)we change all electric motors bearings (for example for lube oil pumps, fans...
  4. ahung

    Motoring Generator by Breaker Failure

    Does anyone know about the consequences of Motoring of Electric Generator by Breaker failure (Trip Coil was failed and the Generator breaker didn´t open to disconect to the grid). When the operator unload the machine to shutdown it the control system send the signal to open the generator...
  5. ahung

    Lighting Protection for a Fuel Oil Tank

    Hi in our power plant we have a 5.000.000 litres capacity cilindrical tank for storage fuel oil N°2. We have four Gas Turbines that burn Natural Gas or Distillate Oil. Only when we have an emergency situation with Natural Gas we run the units using Fuel Oil N°2. My question its about ¿How is...
  6. ahung

    Natural Gas with liquids ßnd solids

    Recently we have a lots of problems with the Gas turbines operation because the natural gas come with liquids and solids like a black fine dust. For liquids we have a gas separator on each Combustion Turbine (W501D5) and we can solve this particular situation, but with this black fine dust our...
  7. ahung

    W501D5 Non OEM Turbine parts

    Does anyone know about who can sell Non OEM parts for Siemens Westinghouse Gas turbine Model W501D5. I need the following parts: 14 C/U OUTER TRN2N EXHAUST SEAL 1745D71G01 14 C/U INNER TRN2N EXHAUST SEAL 1745D72G01 14 C/U CROSS FLAME TUBE 7910D77G01 Thanks Regards Alberto J. Hung C...
  8. ahung

    Working in Dubai or Spain ?

    Does anyone know about How is working in Dubai(Abu Dabhi) or Spain (Madrid. I need to know about salaries level, life conditions, etc. My brother in law is a project engineer (electrical) and he always works for oil industry here in Venezuela. He has 15 years of experience. He want to know what...
  9. ahung

    Siemens Westinghouse Operating Plant Service Agreement

    Does anyone know about this agreement with Siemens Westinghouse. Basically OPSA is a contract with SW to supply new parts and offer repair services of gas turbines parts. Our Power plant here in Venezuela have five (5) CT model W501D5 100 MW each one. This machines running at base load simple...
  10. ahung

    13,8 kV Bus Ducts Typical failures

    We have five SW Gas turbines 100 MW each one. This GT operate at base load condition in simple cycle. Recently we do a termographic inspection on 13,8 kV bus ducts (ISO phase BUS)and we found some bolts of bus duct supports with very high temperature according with the termographic report. We...

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