Analysis Of A Vapor Power Plant :: essays research papers

Analysis of A vapour Power PlantThe objective of this study is to construct a ready reckoner model of a water vaporpower plant. This model get out be used to calculate the put forward properties at all(prenominal) purposes in spite of appearance the cycle. Included is an analysis of the ideal extractionpressures based on the figure values of net work, energy input, thermalefficiency, moisture content, and effectiveness.4.0     Body 4.1      opening System to be Analyzed Steam enters thefirst turbine stage at 120 bar, 520 C and expands in trinity stages to thecondenser pressure of .06 bar. surrounded by the first and second stage, some move isdiverted to a closed in(p) feedwater bullet train at P1, with saturated liquid condensatebeing wield ahead into the boiler feedwater line. The Terminal TemperatureDifference of the feedwater heater is 5C. The time out of the steam is reheated to500C, and then enters the second stage of expansi on. Part of the steam isextracted between the second and third stages at P2 and fed into an openfeedwater heater operating at that pressure. Saturated liquid at P2 leaves theopen feedwater heater. The efficiencies of all pumps are 80%, and theefficiencies of all turbines are 85%.Throughout this report the nations will be referenced as depicted above with the poesy 1-13. The analysis of the system will involve the use of the Energy enumerateBalance to isolate the particular(prenominal) enthalpies and associated values of temperature,pressure, specific volume, and steam quality. The second balance equation willbe used to calculate the specific entropy at all the above noted enunciates. Energy direct Balance (assume KE&PE=0) dEcv/dt = Qcv-Wcv+Smi(hi) - Sme(he)Entropy Rate Balance dScv/dt = SQj/Tj + Smi(si) - Sme(se) + scvFor simplicity, it is assumed in all calculations that kinetic and potentialenergy have a measly effect. It is to a fault assumed that each component in thecy cle is canvas as a control volume at steady state and that each controlvolume suffers from no stray heat dislodge from any component to itssurroundings. The steam quality at the turbine exits will also be constrainedto values greater than or equal to 90% (Moran, 337). 4.2     Code DevelopmentThe C program "finalproject.c was developed to calculate the state values giventhe constraints listed in section 4.1. The program structure consists of threeparts Header/variable declaration Calculation section selective information Report section TheHeader section admits all the variable declarations, functions to include andsystem definitions. To obtain accurate data values, this program uses floatingpoint values. The Calculation section is the function that is used to calculateall the state values. In essence this section consists of two nested while()