Premium
Exergy diagrams for nitrogen on ITS‐90
Author(s) -
Rao Radhika Rani,
Srinivasan K.
Publication year - 1997
Publication title -
international journal of energy research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.808
H-Index - 95
eISSN - 1099-114X
pISSN - 0363-907X
DOI - 10.1002/(sici)1099-114x(199709)21:11<1053::aid-er324>3.0.co;2-e
Subject(s) - exergy , nitrogen , enthalpy , exergy efficiency , thermodynamics , triple point , materials science , process engineering , environmental science , chemistry , engineering , physics , organic chemistry
The exergy–enthalpy and temperature–exergy diagrams have been generated in the range 0.1–10 MPa and from the triple point to 500 K. These diagrams on the International Temperature Scale (ITS‐90) have been generated using a calculation scheme proposed by Jacobsen et al . A computer program is developed for calculating the thermodynamic properties of nitrogen, including exergy as a property, from the triple point to 800 K at pressures up to 30 MPa. These exergy based thermodynamic property charts can be useful in the energy efficiency analyses of cryorefrigeration cycles involving nitrogen as a working medium. A sample analysis is included. © 1997 by John Wiley & Sons, Ltd.