2D-simulation of wet steam flow in a steam turbine with spontaneous condensation

Research paper by Lan-xin Sun, Qun Zheng, Shun-long Liu

Indexed on: 01 Jun '07Published on: 01 Jun '07Published in: Journal of Marine Science and Application


Removal of condensates from wet steam flow in the last stages of steam turbines significantly promotes stage efficiency and prevents erosion of rotors. In this paper, homogeneous spontaneous condensation in transonic steam flow in the 2-D rotor-tip section of a stage turbine is investigated. Calculated results agree with experimental data reasonably well. On the basis of the above work, a 2-D numerical simulation of wet steam flow in adjacent root sections of a complex steam turbine stage was carried out. Computational results were analyzed and provide insights into effective removal of humidity.