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S Seetharamu
Udaykumar R Yaragatti
*Rajashekar P Mandi
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S Seetharamu
Udaykumar R Yaragatti
*Rajashekar P Mandi
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International Research Journal of Power and Energy Engineering

Enhancing energy efficiency of boiler feed pumps in thermal power plants through operational optimization and energy conservation

*Rajashekar P Mandi, S Seetharamu and Udaykumar R Yaragatti

Accepted 04 September, 2014

Citation: Mandi RP, Seetharamu S, Yaragatti UR (2014). Enhancing energy efficiency of boiler feed pumps in thermal power plants through operational optimization and energy conservation. International Research Journal of Power and Energy Engineering, 1(1): 002-011.

Copyright: © 2014. Mandi et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are cited.

Absract

This paper describes the various methods for enhancing the energy efficiency of Boiler Feed Pumps (BFP) in thermal power plants based on the energy audit study conducted in 28 numbers of 210 MW coal fired thermal power plants in India. The auxiliary power used by BFPs is about 2.4 to 3.2 % of the total gross energy generation. BFPs are the largest (in rating) motor in a thermal power plant.  The detailed energy audit of auxiliary equipment in various thermal power stations, operational optimization and appropriate control system had shown ample scope for improving the energy efficiency of BFPs. The energy efficiency improvement of BFPs by reducing the re-circulation flow, pressure drop across feed water circuit elements, enhancing overall efficiency of BFPs, etc., are discussed with case studies.  The implementation of energy conservation measures reduce the average auxiliary power used by BFPs for 210 MW plant from 2.97 % to 2.32 % of gross energy generation and release an additional power of about 480 MW that reduce the CO2 emission by about 3.9 million tonne per year

Keywords: Energy efficiency, boiler feed pumps, auxiliary power, pump efficiency, sec, energy conservation

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