Thermodynamic and aerodynamic meanline analysis of wet compression in a centrifugal compressor |
| |
Authors: | Jeong-Seek Kang Bong-Jun Cha Soo-Seok Yang |
| |
Affiliation: | 1. Aeropropulsion Department, Korea Aerospace Research Institute, 45 Eoeun-Dong, Yuseong-Gu, 305-333, Daejeon, Korea
|
| |
Abstract: | Wet compression means the injection of water droplets into the compressor of gas turbines. This method decreases the compression
work and increases the turbine output by decreasing the compressor exit temperature through the evaporation of water droplets
inside the compressor. Researches on wet compression, up to now, have been focused on the thermodynamic analysis of wet compression
where the decrease in exit flow temperature and compression work is demonstrated. This paper provides thermodynamic and aerodynamic
analysis on wet compression in a centrifugal compressor for a microturbine. The meanline dry compression performance analysis
of centrifugal compressor is coupled with the thermodynamic equation of wet compression to get the meanline performance of
wet compression. The most influencing parameter in the analysis is the evaporative rate of water droplets. It is found that
the impeller exit flow temperature and compression work decreases as the evaporative rate increases. And the exit flow angle
decreases as the evaporative rate increases. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|