ASME STP/TS-012

Description / Abstract: This document presents recommended thermodynamic and transport property data, as derived from a critical evaluation of experimental and theoretical data. Citations as to the origin of this evaluation are given. Ideal and real gas property tables are presented. In addition, two (quantitatively very similar) alternative sets of polynomial equations for ideal gas properties are included. References are given for the more complex reference equations describing the real gas behavior. Real gas property tables are presented to enable an assessment of the impact of real gas effects without programming the corresponding equations or without purchasing corresponding software.

This document covers ideal gas properties up to 6000 K (in some cases even up to 20000 K) and real gas properties up to the highest temperatures and pressures for which validation is feasible, typically 50 MPa. Fourteen species, plus air, have been included in this document since they represent the most commonly encountered species in gas turbine analysis. Real gas properties are not included for minor, unstable or radical gaseous species (H, N, O and OH).