マイクロガスタービンへの水噴射に関する研究

抄録

It is well known that the wet compression technique is effective to improve the performance of gas turbines. A model has been developed to investigate the evaporation behavior of water droplets under gas turbine environments. The temperature of a water droplet has been calculated by treating the droplet as a lumped thermal mass with one representative temperature uniformly distributed in the droplet. It is assumed that the change of water droplet temperature is caused by convective heat transfer through droplet surface. The evaporation rate is calculated based upon mass transfer between water droplet and surrounding air flow. Based on the proposed model, the calculations have been conducted to investigate the evaporation behavior of water droplets in the compressor of Capstone C30 micro gas turbine.