Steam Turbine

Steam Turbine

• The thermal energy is used in the steam generators/ boilers to convert water into steam
• The energy in the steam is converted into mechanical energy of a rotating shaft by a steam turbine
• The steam is passed through the high pressure (HP) turbine
• The exhaust steam of the HP turbine is passed through the low pressure (LP) turbine after removing its moisture through the moisture separator
• The mechanical energy of the steam turbine is converted into electrical energy by means of a generator

Increase in Future Requirement of Electricity

• Annual consumption of electrical power is increasing rapidly throughout the world 
• Standard of living is related to consumption of electricity 
• Rapid industrialization is possible when cheap electrical power is available

Introduction to Power Plant

• Electricity provides a very convenient form of power for lighting, motive power and other applications 
• It is economical to use 
• Clean and ease of control 
• It is the most significant sociological invention of the 20th century.

Cooling Towers

Cooling Towers

Cooled water is needed for, for example, air conditioners, manufacturing processes or power generation. A cooling tower is an equipment used to reduce the temperature of a water stream by extracting heat from water and emitting it to the atmosphere. Cooling towers make use of evaporation whereby some of the water is evaporated into a moving air stream and subsequently discharged into the atmosphere. As a result, the remainder of the water is cooled down significantly. Cooling towers are able to lower the water temperatures more than devices that use only air to reject heat, like the radiator in a car, and are therefore more cost-effective and energy efficient.

Cooling Water Monitoring

Cooling Water Monitoring

1. Be sure to keep the water log sheet records up to date. Maintain a record of necessary components, control ranges, control capabilities (especially for calcium, pH, alkalinity, biocide, chemical feeds, conductivity, possible phosphate content.) Follow water treatment procedures closely.
2. Periodically check the water appearance for turbidity and foam.
3. Inspect wet surfaces for evidence of slime, algae or scale. Do the same for submerged surfaces. Use a corrosion coupon to monitor system corrosion rates where potential corrosion problems are indicated.
4. Monitor chemical additions for visible and uniform flow and proper rate.

Download PDF file
View PDF ONLINE