Energy saving has become very important recently. The improvement in turbine efficiency reduces running cost and increases reliability.
Hitachi has studied and achieved turbine effciency improvements by conducting
detailed analyses of various losses in turbine stages as well as through simulations
using three dimensional turbine internal flow models.
Please find herein information on turbine efficiency improvement technology.
Minimizing blade incidence angle loss
Optimization of inlet angle
Minimizing secondary flow loss
Selection of inlet angle
Reducing blade root mixing steam loss
Optimization of blade root leakage
Decreasing non-uniform flow loss
Optimization of stage construction
HISTEAM STEAM PATH DESIGN PROGRAM
HITACHI STEAM TURBINE EFFICIENCY ANALYSIS METHOD
Simulation program for three dimensional turbine internal flow and losses
Advanced laminar nozzle profile
Controlled vortex nozzle
Advanced vortex lean nozzle
Advanced laminar moving blade profile
Balance blade profile
Notch block conversion into notch blade
Multiple fin seal
Elliptical packing
Diffuser type exhaust hood
Technical Information