This sequence is repeated as the steam passes through additional rows of fixed and moving blades. In addition, however, the steam upon passing through the moving blades again expands and further drops in pressure giving a reaction force to the blades. ![]() It then enters the moving blades where its direction of flow is changed thus producing an impulse force on the moving blades. The steam expands first in the stationary or fixed blades where it gains some velocity as it drops in pressure. The volume of the steam increases.TYPES OF STEAM TURBINES REACTION TURBINE:A reaction turbine has rows of fixed blades alternating with rows of moving blades. The steam passes through the stationary nozzles and is directed at high velocity against rotor buckets causing the rotor to rotate at high speed.The following events take place in the nozzles:1. IMPULSE TURBINEREACTION TURBINE IMPULSE TURBINE:The principle of the impulse steam turbine consists of a casing containing stationary steam nozzles and a rotor with moving or rotating buckets. This movement is possible because the water to steam conversion results in a rapidly expanding gas.Īs the turbines rotor turns, the rotating shaft can work to accomplish numerous applications, often electricity generation.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |