In this article we will discuss about the methods of compounding and governing of steam turbines. Compounding of Steam Turbine: The steam turbines operate at very high speed in the range 30000 r.p.m. The devices as a load operate at slow speeds in range of 1000 to 4000 r.p.m. It becomes necessary to reduce the speed of steam turbine using [...]
There are various types of air pump used in condensers: 1. Reciprocating Piston or Bucket Pump 2. Rotary Dry Air Pump 3. Steam Operated Air Ejector 4. Water Jet Pumps 5. Steam Jet Air Ejector 6. Modern Air Ejector Plant. Type # 1. Reciprocating Piston or Bucket Pump: This is a reciprocating piston or bucket pump known as Edward's pump. [...]
The function of a governor is to control the fluctuation of speed of a prime mover within the prescribed limits with the variation of loads on it. In case of steam turbines when it is connected to drive an alternator for converting its mechanical energy into electrical energy, device is used to vary the turbine output according to the load [...]
In this article we will discuss about:- 1. Simple Impulse Turbine 2. Reaction Turbine 3. Impulse Reaction Turbine. Simple Impulse Turbine: The impulse turbine depends completely upon the dynamic action of the steam. The direction of motion of the steam is changed as it passes across the blade. As a result of change of direction of steam across the blade, [...]
Compilation of lecture notes on ‘Steam Turbines’ for engineering students. Lecture Note # 1. Optimum Operating Conditions: Lecture Note # 2. Blade Height of Turbine: For impulse turbine the blade height at a particular section of a turbine will be function of mass flow rate (m), specific volume (v), area (A), and velocity of steam Let, P = pitch = distance [...]