BibTeX:

@article{IJIRSTV1I11045,
     title={AN ASSESMENT ON DESIGN PARAMETERS AND VIBRATION CHARACTERISTICS OF HIGH PRESSURE BOILER FEED PUMP FOR AUXILIARY POWER CONSUMPTION},
     author={SREENATH K.G, sachin chacko, sethu sathyan , nikhil abraham and parvathy venugopal},
     journal={International Journal for Innovative Research in Science & Technology},
     volume={1},
     number={11},
     pages={102--109},
     year={},
     url={http://www.ijirst.org/articles/IJIRSTV1I11045.pdf},
     publisher={IJIRST (International Journal for Innovative Research in Science & Technology)},
}

High pressure boiler feed pump is a six stage horizontal centrifugal pump of barrel design casing. At RGCCPP, Boiler feed pump (BFP) takes water from the feed water system i.e. from the deaerator and provide this water to the boiler system, to generate steam which is responsible for rolling the Turbine to generate electricity. Normally Feed water pumped to the boiler is pumped to the Boiler's Drum where at the top point of the boiler, so we have to provide a pump that can handle huge pressure with high discharge to the boiler. BFP is usually rotate with 5000 rpm, 150 bar and can provide about 265 T/H. The HPBFP discharge pressure was around 160 kg/cm2, whereas HP Drum pressure (i.e. working pressure) is around 80 kg/cm2. So there was a large difference in pressure in HP Drum and HPBFP discharge, which should be the same. Various methods suggested for controlling HPBFP discharge pressure are,a) Throttling, b) Fluid coupling, c) Impeller trimming, d) Variable frequency drive, e) Replacement of HPBFP gear box with modified gear box, f) Magnadrive Among these Replacement of HPBFP gear box with modified gear box is the accepted solution by the industry. Modifying the gear ratio reduces output speed of BFP. As speed reduces, discharge pressure also reduces. Our aim was to reduce discharge pressure of BFP, thereby finding the most efficient method of reduced power consumption, which increases the efficiency of the plant. As the gearbox is getting replaced, it is essential to study vibration behavior of the pump. Hence experimental and numerical analysis of vibration characteristics is analyzed.

High Pressure boiler Feed Pump; Deaertor; Boiler Drum