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"This book contains steam tables for practical industrial use calculated by using the international standard IAPWS-IF97 for the thermodynamic properties of water and steam and the IAPWS industrial standards for transport and other properties. The complete set of equations of IAPWS-IF97 is presented including all supplementary backward equations adopted by IAPWS for fast calculations of heat cycles, boilers, and steam turbines. The calculation of the properties is not only shown for the usual input parameter pairs pressure and temperature, but also for the parameters pressure and enthalpy, pressure and entropy, enthalpy and entropy. It is for the first time that such a description is given. For designing advanced energy conversion processes, tables and property calculation algorithms of steam up to 2000 °C are given.In addition, these steam tables contain the following features: - Formulas to calculate arbitrary partial derivatives of the eight most important properties from IAPWS-IF97, which are very helpful in non-stationary process modelling, are shown.- The uncertainty values of IAPWS-IF97 regarding the most important properties are included.- Pressure-temperature diagrams with isolines of 26 thermodynamic, transport and other properties are added."

"ABSTRACTSudden changes in extreme pressure can change the phase and temperature of a fluid according to the temperature and saturation pressure diagram. This is applied using the Throttling Process in the PLTU. The purpose of this research is to conserve energy by simulating the calculation of thermal efficiency of the PLTU by adding a throttling process in it. In this simulation, the varied variables are the percentage of water discharged into the sea and the temperature difference in the condenser. This simulation is also supported by experiments conducted by the author by creating a system that describes the situation of the simulation. Based on the simulation results, the use of the throttling process can produce distilled water of 0.0178 kg/s, and increase turbine efficiency by 0.16%. These results were obtained by reducing the pressure on the condenser from 8.45 kPa to 6.45 kPa, as well as other modifications.

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ABSTRAKPerubahan tekanan ekstrem secara mendadak dapat merubah fasa dan temperature daripada suatu fluid sesuai dengan diagram suhu dan tekanan saturasi. Hal ini diaplikasikan menggunakan Throttling Process pada PLTU. Tujuan dari penelitian ini adalah untuk konservasi energi dengan melakukan simulasi perhitungan efisiensi thermal PLTU dengan modifikasi menambahkan throttling process didalamnya. Pada simulasi ini variable yang divariasikan adalah persentase air yang dibuang ke laut dan perbedaan temperature di dalam condenser. Simulasi ini juga didukung oleh experiment yang dilakukan oleh penulis dengan membuat sistem yang menggambarkan situasi dari simulasi tersebut. Berdasarkan hasil simulasi, penggunaan dari throttling process dapat menghasilkan akuades sebesar 0.0178 kg/s, dan meningkatkan efisiensi turbine sebesar 0.16%. Hasil tersebut didapatkan dengan mengurangi tekanan pada condenser dari 8.45 kPa ke 6.45 kPa, serta modifikasi lainya."