NDLI: Property Libraries for Working Fluids for Calculating Heat Cycles, Turbines, Heat Pumps, and Refrigeration Processes

Content Provider	The American Society of Mechanical Engineers (ASME) Digital Collection
Author	Kretzschmar, H. -J Stoecker, I. Jaehne, I. Herrmann, S. Kunick, M.
Copyright Year	2007
Abstract	The program libraries developed for calculating the thermophysical properties of working fluids can be used by engineers who routinely calculate heat cycles, steam or gas turbines, boilers, heat pumps, or other thermal or refrigeration processes. Thermodynamic properties, transport properties, derivatives, and inverse functions can be calculated. Today gas turbines are being developed for higher and higher temperatures and pressures. However, the calculation of the combustion gas as an ideal gas mixture will be inaccurate at high pressures. For this reason, a property library has been developed for humid combustion gases calculated as an ideal mixture of real fluids. The advanced adiabatic compressed air energy storage technology requires very accurate algorithms for the thermodynamic and transport properties of humid air at low temperatures and high pressures. At these parameters, humid air cannot be calculated as an ideal gas mixture. For this reason, a property library with real gas algorithms has been developed. The following properly libraries will be presented: LibHuGas for humid combustion gas mixtures at high pressures calculated as an ideal mixture of real fluids. The library also includes mixtures of steam and carbon dioxide. The dissociation at high temperatures, the poynting effect, and the condensation of water are considered as well. LibHuAir for humid air at high pressures calculated as an ideal mixture of the real fluids dry air, steam and water or ice. The dissociation at high temperatures and the poynting effect are taken into consideration. LibAmWa for mixtures of ammonia and water in the Kalina cycle and in absorption refrigeration processes. LibWaLi for mixtures of water and lithium bromide in absorption refrigeration processes. LibldGas for combustion gas mixtures calculated as an ideal mixture of ideal gases using the VDI-Guideline 4670. LibIdAir for humid air calculated as an ideal mixture of the ideal gases dry air and steam using the VDI-Guideline 4670. LibIdGasMix for 25 ideal gases and their mixtures. LibIF97 for water and steam calculated from the Industrial Formulation IAPWS-IF97 and all new backward equations of the four supplementary releases adopted by IAPWS between 2001 and 2005. LibCO2 for carbon dioxide. LibNH3 for ammonia. LibR134a for the refrigerant R134a. LibPropane for propane. LibButane_Iso and LibButane_n for Iso- and n-butane. LibHe for helium. LibH2 for hydrogen. The libraries contain the most accurate algorithms for thermodynamic and transport properties. The following software solutions will also be presented: - DLLs for Windows® applications. - Add-In FluidEXL for Excel®. - Add-On FluidLAB for MATLAB®. - Add-On FluidMAT for Mathcad®. - Properly libraries for HP, TI, and Casio pocket calculators. Student versions of all programs are available.
Starting Page	483
Ending Page	483
Page Count	1
File Format	PDF
ISBN	0791843009
DOI	10.1115/IMECE2007-42033
e-ISBN	0791838129
Volume Number	Volume 6: Energy Systems: Analysis, Thermodynamics and Sustainability
Conference Proceedings	ASME 2007 International Mechanical Engineering Congress and Exposition
Language	English
Publisher Date	2007-11-11
Publisher Place	Seattle, Washington, USA
Access Restriction	Open
Subject Keyword	Water Temperature Computer software Hydrogen Carbon dioxide Lithium Combustion gases High temperature Condensation Fluids Absorption Gas turbines Students Turbines Low temperature Kalina cycle Boilers Ice Helium Gases Heat pumps Algorithms Compressed air Steam Thermodynamic cycles Engineers Refrigeration Refrigerants Energy storage Matlab
Content Type	Text
Resource Type	Article

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