| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a calculation method of moisture loss in a steam turbine for accurately and easily calculating an amount of the moisture loss in the steam turbine. <P>SOLUTION: In the calculation method of the moisture loss in the steam turbine, first, a wetness fraction at an inlet and outlet of each of stationary blade cascades and rotor blade cascades is calculated. Subsequently, the moisture loss is classified into (1) supersaturation loss, (2) condensation loss, (3) acceleration loss, (4) braking loss, (5) capture loss and (6) pumping loss, and a loss for calculation of the moisture loss is selected from the losses (1) to (6) on the basis of the wetness fraction of steam at the inlet and outlet of each blade cascade. An amount of each selected loss is calculated, and the amount of the moisture loss at each blade cascade is calculated. <P>COPYRIGHT: (C)2012,JPO&INPIT |
