| The results of an extensive study of turbine cycle analyses for steam power plants are presented in this thesis. Applications of the results of this study for practical design and feasibility analyses for the most desirable turbine cycle are also presented. The First Law and Second Law of Thermodynamics are applied to a series of possible steam power plant configurations operating at various conditions. These include: varied throttle steam temperatures and pressures, reheat steam temperatures and pressures, number of feedwater heaters, varied exhaust pressure and system pressure drop. The effect of these key parameters on the performance of turbine is studied by the use of a traditional heat balance (FIrst Law) and the concept of availability (Second Law). The analytical results show a distinct difference between the First Law and Second Law analysis in terms of the influence of parameters on the performance. A computer code, AVATCY, is developed to handle the various configurations. It is capable of analyzing a turbine cycle with up to twelve feedwater heaters (open and closed), with or without reheat, various steam conditions at turbine inlet (wet, saturated or superheated) and motor or turbine-driven pumps. |
