input output characteristics of thermal plant
- 1. INPUT-OUTPUT,HEAT RATECHARACTERISTICS AND INCREMENTAL COSTOFUNITS OF THERMALPOWER PLANT Prepared by BY M.RAMESH AssistantProfessor, Dept.ofEEE AITS,Rajampet
- 2. INPUT-OUTPUTCHARACTERISTICS Input-Output characteristics is the fundamental curve for a thermal plant It is a plot of the input in British thermal units (Btu) per hour versus the power output of the plant in MW .
- 4. HEATRATECHARACTERSTICS The heat rate is the ratio of fuel input in Btu to energy output in KWh. It is the slope of the input – output curve at any point. The reciprocal of heat rate is called fuel efficiency. The heat rate curve is a plot of heat rate versus output in MW
- 6. INCREMENTALFUELRATECURVE The incremental fuel rate is equal to a small change in input divided by the corresponding change in output. Incremental fuel rate = ∆𝐼 𝑁 𝑃𝑈𝑇 ∆𝑂𝑈𝑇𝑃𝑈𝑇 The unit is again Btu / KWh. A plot of incremental fuel rate versus the output
- 8. INCREMENTALCOSTCURVE and fuel cost (Rs/ Btu or $/Btu). Theunit of the incremental fuel cost isRs/ MWh or $/MWh. Theincremental fuel cost isgiven by The incremental cost is the product of incremental fuel rate 𝑑𝐹𝑖 𝑑𝑃𝐺𝑖 = bi + 2ci PGiRs/ MWh
- 10. INCREMENTALCOSTSOFUNITSOF THERMALPOWER PLANT The simplest case of economic dispatch is the case when transmission losses are neglected. The model does not consider the system configuration or line impedances. Since losses are neglected, the total generation is equal to the total demand PD
- 12. THANK U