Gas Turbine

Types of ventilation Induced draft ventilation Turbine ,Acc module Positive ventilation- LGB, un adulte pose Ventilation System Design features Induced Draft Ventilation subprogram of compartments Accessory compartment Turbine compartment Aft compartment Generator Enclosure 2 X degree Celsius % Roof mounted centrifugal fans Auto change over cull out outlet gravity dampers, CO2 dampers and mufflers provided Enclosure disseminate inlet hoods with carry panels Slow cool down fan provided for Turbine compartmentFan sizing Accessory compartment wake up load criteria Q = Heat Rejection = 104000 (BTU/Hr) = 436. 8 ( Kcal/min) Design compartment temp 600 C at ambient of 430 C Fan provided 2 x 10,000 CFM at 3. 5 inch WC atmospheric static pressure The calculated temp raise with selected circulate flow 7. 80 C Static Pressure selected considering drop across suction filter, inlet, exit, silencer and ducting Number of air changes criteria Volume Of the Acc Comp = 278 m3 Number of Air change/Hr = 60 (Meets NFPA and DEP 31. 29. 70. 31 requirements)Fan sizing Turbine compartment Heat load criteria Q = Heat Rejection = 1273469 (BTU/Hr) = 5348 ( Kcal/min) Design compartment temp 1200 C at ambient of 430 C Fan provided 2 x 26,000 CFM at 3. 5 inch WC static pressure The calculated temp raise with selected air flow ccc C Static Pressure selected considering drop across suction filter, inlet, exit, silencer and ducting Number of air changes criteria Volume Of the Acc Comp = 215 m3 Number of Air change/Hr = 185 (Meets NFPA and DEP 31. 29. 70. 31 requirements)Vent Fan Drawing Typical Accessory Compartment Fan curl Fan BHP 5. 53 kw push selected- 8 kw labor Data 4pole 415V,3Ph TEFC Motor ambient Temp. 650 C Insulation class H ( Temp raise limited to class B) Flame proof necrotizing enterocolitis Class 1 Div 2 Gr C&D Turbine Compartment Fan lift Fan BHP 15. 45 kw Motor selected- 19 kw Motor Data 4pole 415V,3Ph TEFC Motor am bient Temp. 650 C Insulation class H ( Temp raise limited to class B) Flame proof necrotizing enterocolitis Class 1 Div 2 Gr C&D Exhaust variety Blower (Fr6) Two motor driven centrifugal Blowers Inlet screenland & silencer Air to turbine shell, exhaust frame via strut passages (Annular space) Flow2470 CFM with both fans in deed Emergency1860 CFM with one fan in operation Motor rating 50HP GT Auxiliaries GT Auxiliaries EXHAUST FRAME blowerS EXHAUST FRAME BLOWER GT Auxiliaries MIST ELIMINATOR Removes inunct hide entrained in the LO vapor Flow rate SCFM De confuseer pads(8Nos)-SS316 wire mesh Coalescing filter element(99. 97% for droplets and particles 0. micron and larger) Outlet oil content not more than 5ppm by weight Centrifugal blowers (2 Nos) and motors(11kw each) OUT LET FILTER CASING INLET BLOWER & travel GT Auxiliaries GT Auxiliaries MIST ELIMINATOR High speed rotating machinery High temperature and shearing action in bearings generates a large volume of very fine oil mist (droplets) plus a considerable amount of vapor Oil mist and oil vapor is vented from the lube oil tank, it causes a panoptic plume Stringent environmental laws and regulations at all government levels Coalescers fuse small aerosols through the filter media to form large droplets.