Exergetic Analysis of Boiler Feed Water System with Deaerator in Steam Power Plant

Authors

  • Nurul Hoda Sanid Dhaka University of Engineering & Technology, Gazipur, Bangladesh
  • Mohammad Zoynal Abedin Dhaka University of Engineering and Technology, Bangladesh https://orcid.org/0000-0002-3268-1387
  • Samsul Islam Dhaka University of Engineering and Technology, Bangladesh https://orcid.org/0000-0002-0617-164X

DOI:

https://doi.org/10.26776/

Abstract

The thermodynamic analysis of the steam power plant is of great importance from a practical point of view. The present research aims to investigate the exergetic analysis of a boiler feed water system with a deaerator in a steam power plant with a design capacity of 210 MW in Bangladesh. The water parameters, including temperature, pressure, and mass flow rate, are measured and analyzed in the present study. The experimental results are compared and validated with the existing observations of the combined-cycle power plant. The highest and lowest water temperatures at the deaerator outlet signify the operating regimes as Initial Regime 1 and Final Regime 4, respectively, whereas the two intermediate water temperatures at the deaerator indicate Regime 2 and Regime 3, respectively. The results reveal that the highest exergy destruction, at 3.2 MW, occurs at an ambient temperature of 30°C in Regime 1. Furthermore, lower exergy destruction is observed at lower ambient temperatures. Conversely, the highest exergy efficiency of 84% is achieved in Regime 4 at an ambient temperature of 15°C. This is because a low water outlet temperature from the deaerator ensures higher exergy efficiency through less exergy destruction, and vice versa.

Author Biography

  • Mohammad Zoynal Abedin, Dhaka University of Engineering and Technology, Bangladesh

    Professor Dr. Engr. Mohammad Zoynal Abedin, PEng is the Vice-Chancellor of Dhaka University of Engineering & Technology (DUET), Gazipur, Bangladesh. Prof. Abedin has been serving as Professor in the Department of Mechanical Engineering at of DUET since 2013. Prior to this, he joined as a Lecturer in 1999, promoted to an Assistant Professor in 2003 and then to an Associate Professor in 2011 in the Department of Mechanical Engineering of DUET. He had been serving as the Director of the Consultancy Research & Testing Service (CRTS) of DUET from 2022 to 2024. He was working as a Postdoctoral researcher in the fields of HVAC, SITVC, CFD in the Department of Mechanical Engineering at Yonsei University, South Korea from July 2015 to February 2016 and later as a Postdoctoral fellow in the fields of HVAC, heat transfer and bubble dynamics in the Department of Mechanical Engineering at Incheon National University, Incheon, South Korea from March 2016 to May 2017. He received his PhD in Mechanical Engineering in the fields of Thermo-Fluid Mechanics, Turbulence, Boundary layer flows and Fluid dynamics from Nagoya Institute of Technology, Japan in 2010. Earlier he received his M.Sc. in Mechanical Engineering from Bangladesh University of Engineering and Technology, Dhaka, Bangladesh in 2004, and his B.Sc. in Mechanical Engineering from Bangladesh University of Engineering and Technology, Dhaka, Bangladesh in 1998. He has vast and diversified research expertise in the fields of (1) Convective heat transfer and Thermo-solutal convection, (2) Turbulence, Boundary layer flows and Fluid dynamics, (3) Secondary Injection Thrust Vector Control (SITVC), Propulsion and Gas dynamics, (4) Two-phase flows, Boiling and Bubble dynamics, (5) Alternative fuels and Energy, (6) HVAC, (7) Computational Heat and Fluid Flow, (8) Fire dynamics and Safety Engineering, (9) Waste management, Recovery and Energy Production (10) CFD and Parallel Computing. Prof. Abedin is seen to be involved not only in securing a significant position for the publications of national and international journals and conference papers based on his research expertise but also in the writing of technical and non-technical papers and topics in various mediums in order to be aware of the betterment of society. He has more than 60 papers published in international journals (40 papers) and conferences (20 papers). Prof. Dr. Engr. Mohammad Zoynal Abedin, PEng is also seen to be involved as a technical expert and consultant in the design, consultancy, commissioning and supervision of Mechanical and Electrical Plumbing (MEP), and Fire safety and Energy management systems in various projects at home and abroad. Therefore, the main theme of Prof. Abedin's life is to lead the fields of science, technology, engineering and mathematics (STEM) for the betterment of society.

Downloads

Published

2026-04-30

Issue

Vol. 11 No. 2 (2026)

Section

Research

License

© Copyright: The Author(s)
Creative Commons: CC BY 4.0
Copyright of articles that appear in International Journal of Engineering Materials and Manufacture (IJEMM) are belonged to “The Author(s)” under terms and conditions of Creative Commons Attribution 4.0 International Public License (CC BY 4.0). https://creativecommons.org/licenses/by/4.0/legalcode

How to Cite

Exergetic Analysis of Boiler Feed Water System with Deaerator in Steam Power Plant. (2026). International Journal of Engineering Materials and Manufacture, 11(2), 40-48. https://doi.org/10.26776/