Analysis Of A Vapor Power Plant :: essays research papers

abbreviation of A Vapor Power PlantThe objective of this study is to constitute a computer model of a water vapor ply plant. This model will be engrossd to take the state properties at entirelypoints within the cycle. Included is an analysis of the ideal extractionpressures ground on the calculated values of net work, energy input, thermalefficiency, wet content, and effectiveness.4.0     Body 4.1     Introduction System to be Analyzed Steam enters the outset turbine arrange at 120 bar, 520 C and expands in three stages to the optical condenser pressure of .06 bar. Between the first and second stage, some steam is turn to a closed feedwater sens at P1, with saturated liquid capsulebeing pumped ahead into the boiler feedwater line. The Terminal TemperatureDifference of the feedwater heater is 5C. The rest of the steam is reheated to500C, and then enters the second stage of expansion. Part of the steam isextracted between the second and third stages at P2 and federal official 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 states will be referenced as picture above with thenumbers 1-13. The analysis of the system will involve the use of the Energy Rate equaliser to isolate the specialised enthalpies and associated values of temperature,pressure, specific volume, and steam quality. The Entropy balance equation willbe apply to calculate the specific entropy at all the above celebrated states. EnergyRate 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 support a negligible effect. It is also assumed that each component in thecycle is analyzed as a control volume at steady state and t hat each controlvolume suffers from no travel heat transfer 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 chopine "finalproject.c was unquestionable to calculate the state values giventhe constraints listed in section 4.1. The course of study structure consists of threeparts Header/variable declaration enumeration section Data Report section TheHeader section includes 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()