In this article we will discuss about:- 1. Steam Power Plants 2. Efficiency of Steam Power Plants 3. Merits and Demerits 4. Layout 5. Steam Power Plant Auxiliaries 6. Turbo-Alternators. Introduction to Steam Power Plants: The fact that thermal energy is the major source of power generation itself shows the importance of thermal power generation in India more than 50 [...]
The modern ash handling systems usually used in large steam power plants are: 1. Belt Conveyor System 2. Pneumatic System 3. Hydraulic System 4. Steam Jet System. 1. Belt Conveyor System: In this system, the ash is made to fall through a water seal over the belt conveyor in order to cool it down and then carried to a dumping [...]
The important parts and auxiliaries of steam power plants are discussed in brief as follows:- 1. Steam Generating Equipment 2. Condensers 3. Evaporators 4. Feed Water Heaters 5. Prime Movers 6. Spray Ponds and Cooling Towers 7. Control Room 8. Switchyard 1. Steam Generating Equipment: (a) Boilers: Boilers or steam generators convert water into steam and form one of the [...]
Steam power plant basically operates on the Rankine cycle. Coal is burnt in a boiler, which converts water into steam. The steam is expanded in a turbine, which produces mechanical power driving the alternator coupled to the turbine. The steam after expansion in prime mover (turbine) is usually condensed in a condenser to be fed into the boiler again. In [...]
The factors to be considered while selecting a site for a steam power plant for economical and efficient generation are: 1. Nearness to the Load Centre 2. Supply of Water 3. Availability of Coal 4. Land Requirement 5. Type of Land 6. Transportation Facilities 7. Labour Supplies 8. Ash Disposal 9. Distance from Populated Area. Factor # 1. Nearness to [...]
The factors to be considered while selecting a site for a steam power plant for economical and efficient generation are: 1. Nearness to the Load Centre 2. Supply of Water 3. Availability of Coal 4. Land Requirement 5. Type of Land 6. Transportation Facilities 7. Labour Supplies 8. Ash Disposal 9. Distance from Populated Area. Factor # 1. Nearness to [...]
In this article we will discuss about feed water and its heating in a steam power plant. The steam coming out of turbine is condensed and the condensate is fed back to the boiler as feed water. Some water may be lost due to blow-down, leakage etc. and to make up these losses additional water, called the make-up water, is [...]
In this article we will discuss about the meaning and types of draught. Meaning of Draught: In a boiler, the combustion of the fuel requires supply of sufficient quantity of air and removal of exhaust gases and this is achieved by draught system. The circulation of air is caused by a difference in pressure, known as draught. Thus the draught [...]
In this article we will discuss about the process of removal of dust from exhaust gases by dust collectors and electrostatic precipitators. The exhaust gases leaving the boiler contain particles of solid matter in suspension-smoke, dust, soot, fly ash or carbon as material called 'cinder'. The quantity of these solid particles largely depends upon the method of fuel firing. Flue [...]