September 2010
Intermediate to advanced
200 pages
3h 36m
English
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1.2 CHARACTERISTICS OF THERMAL UNITS
The cost of power generation by any thermal unit depends upon its characteristics. Performance of any unit can be understood by studying the generator’s input–output characteristics and the cost curve. Characteristics of individual machines are drawn on graphs and later converted into suitable mathematical equations using curves fitting methods. These mathematical equations are used to solve the economic scheduling problem. The input of a thermal unit is expressed in kcal/hr in terms of heat supplied or in Rs/hr in terms of cost of fuel, while the output is expressed in of MW.
1.2.1 Input–Output or Heat Characteristic
Heat curve is a graph drawn between fuel input in Btu/h or kcal/hr and power output in MW ...
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