Exergy Analysis of a Subcritical Reheat Steam Power Plant with Regression Modeling and Optimization

Abstract

In this paper, exergy analysis of a 210 MW SPP (Steam Power Plant) is performed. Firstly, the plant is modeled and validated, followed by a parametric study to show the effects of various operating parameters on the performance parameters. The net power output, energy efficiency, and exergy efficiency are taken as the performance parameters, while the condenser pressure, main steam pressure, bled steam pressures, main steam temperature, and reheat steam temperature isnominated as the operating parameters. Moreover, multiple polynomial regression models are developed to correlate each performance parameter with the operating parameters. The performance is then optimizedby using Direct-searchmethod. According to the results, the net power output, energy efficiency, and exergy efficiency are calculated as 186.5 MW, 31.37 and 30.41%, respectively under normal operating conditions as a base case. The condenser is a major contributor towards the energy loss, followed by the boiler, whereas the highest irreversibilities occur in the boiler and turbine. According to the parametric study, variation in the operating parameters greatly influences the performance parameters. The regression models have appeared to be a good estimator of the performance parameters. The optimum net power output, energy efficiency and exergy efficiency are obtained as 227.6 MW, 37.4 and 36.4, respectively, which have been calculated along with optimal values of selected operating parameters.

Authors and Affiliations

Muhib Ali Rajper, Abdul Ghafoor Memon, Khanji Harijan

Keywords

Related Articles

JSOPT: A Framework for Optimization of JavaScript on Web Browsers

In the current era where multi-core technologies are very common in use, the existing web browsers are unable to fully utilize the capability of multi-core processors.The web browsers execute the JavaScript code locally...

3n-Point Quaternary Shape Preserving Subdivision Schemes

In this paper, an algorithm is defined to construct 3n-point quaternary approximating subdivision schemes which are useful to design different geometric objects in the field of geometric modeling. We are going to establi...

Numerical Simulation of Mixing of Effluent through Porous Media: The Effects of Local Inertia on the Flow

The steady–state analytical and numerical solutions are obtained for the mixing of effluent with Newtonian fluid in subsurface. The problem presented in this research work is flow through a channel packed by homogeneous...

Flood Management Current State, Challenges and Prospects in Pakistan: A Review

Flooding is globally a major natural hazard. Floods result in property and life loss and poor economic development. Though it is not possible to prevent the occurrence of floods, but their negative impacts could be minim...

Laboratory Investigation to Assess the Impact of Pore Pressure Decline and Confining Stress on Shale Gas Reservoirs

Four core samples of outcrop type shale from Mancos, Marcellus, Eagle Ford, and Barnett shale formations were studied to evaluate the productivity performance and reservoir connectivity at elevated temperature and pressu...

Download PDF file
  • EP ID EP184587
  • DOI -
  • Views 127
  • Downloads 0

How To Cite

Muhib Ali Rajper, Abdul Ghafoor Memon, Khanji Harijan (2016). Exergy Analysis of a Subcritical Reheat Steam Power Plant with Regression Modeling and Optimization. Mehran University Research Journal of Engineering and Technology, 35(3), 459-472. https://europub.co.uk/articles/-A-184587