Energies 2012, 5(8), 2745-2758; doi:10.3390/en5082745
Exergy Analysis of Overspray Process in Gas Turbine Systems
1
Department of Mechanical Engineering, Kumoh National Institute of Technology, 61 Daehak-ro, Gumi, Gyeongbuk 730-701, Korea
2
Department of Mechanical System Engineering, Kumoh National Institute of Technology, 61 Daehak-ro, Gumi, Gyeongbuk 730-701, Korea
*
Author to whom correspondence should be addressed.
Received: 2 May 2012 / Revised: 11 July 2012 / Accepted: 11 July 2012 / Published: 30 July 2012
(This article belongs to the Special Issue Exergy Analysis of Energy Systems)
Abstract
Gas turbine power can be augmented by overspray process which consists of inlet fogging and wet compression. In this study exergy analysis of the overspray process in gas turbine system is carried out with a non-equilibrium analytical modeling based on droplet evaporation and the second law of thermodynamics. This work focuses on the effects of system parameters such as pressure ratio, water injection ratio, and initial droplet diameter on exergetical performances including irreversibility and exergy efficiency of the process. The process performances are also estimated under the condition of saturated water injection ratio above which complete evaporation of injected water droplets within a compressor is not possible. The results show that the irreversibility increases but the saturated irreversibility decreases with increasing initial droplet diameter for a specified pressure ratio. View Full-TextKeywords:
water injection; droplet evaporation; overspray; gas turbine; exergy
▼
Figures
Figure 1
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).
Scifeed alert for new publications
Never miss any articles matching your research from any publisher- Get alerts for new papers matching your research
- Find out the new papers from selected authors
- Updated daily for 49'000+ journals and 6000+ publishers
- Define your Scifeed now
Share & Cite This Article
MDPI and ACS Style
Kim, K.H.; Kim, K. Exergy Analysis of Overspray Process in Gas Turbine Systems. Energies 2012, 5, 2745-2758.
Related Articles
Article Metrics
Comments
[Return to top]
Energies
EISSN 1996-1073
Published by MDPI AG, Basel, Switzerland
RSS
E-Mail Table of Contents Alert