compressibility chart Table A–16 Properties of the atmosphere at high altitude Table A–17 Ideal-gas properties of air Table A–18 Ideal-gas properties of nitrogen, N 2 ... PROPERTY TABLES AND CHARTS cen2932x_ch18-ap01_p907-956.qxd 12/18/09 10:05 AM Page 908. TABLE A–2 Ideal-gas specific heats of various common gases (a) At 300 K
Figure A–27 The Moody chart 1015 Figure A–28 Nelson-Obert generalized compressibility chart 1016 PROPERTY TABLES AND CHARTS (SI UNITS) 973 APPENDIX1 cen7338x_appa_p973-1016.QXP 12/16/10 12:18 PM Page 973. TABLE A–1 …
For each of the gases hydrogen, nitrogen, and oxygen, two oharts are given. The first gives directly the number of standard cubic feet of the gas which a cylinder will deliver. The second chart gives values of the compressibility factor Z=PV/nRT and of the density p.
The p- v -T relation for 10 common gases is shown in the generalized compressibility chart. The symbols pc and Tc denote the temperature and pressure at the critical point for the particular gas under consideration. These values are obtained from Tables A-1 and.
Compressibility factor . Pv Z RT = for real gas. ... Figure 3-49 Comparison of Z factors Table A-15 Generalized compressibility chart . Example 3-11 Find specific volume of R-134a at. P 1.0 MPa= and T 50 C 273.15K= =o (superheated vapor) Table A-1. P 4.059 MPa cr = ,
Figure A–15 Nelson–Obert generalized compressibility chart 921 Table A–16 Properties of the atmosphere at high altitude 922 Table A–17 Ideal-gas properties of air 923 Table A–18 Ideal-gas properties of nitrogen, N 2 925 Table A–19 Ideal-gas properties of oxygen, O 2 927 Table A–20 Ideal-gas properties of carbon dioxide, CO 2 929
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Chapter 3
Using the compressibility chart, determine (a) the specific volume of the water vapor in m3/kg at the initial state. (b) the pressure in MPa at the final state. Compare the results of parts (a) and (b) with values obtained from the thermodynamic table or software11.
Ideal gasses follow the formula = , but real gasses fall on a spectrum of compressibility, denoted by z. This is a ratio of the actual volume of a gas to the volume that is predicted by an ideal gas version at a given temperature and pressure. Z may be greater than or less than 1. A value of 1 indicates an ideal gas.
Nelson—Obert generalized compressibility chart. TABLE A-2 Ideal—gas specific heats of various common gases 1. 1. 1. 1. R (Upper Saddle kJ/kg.K APPENDIX 1 kJ/kg.K 1 1 1 1 1 1 1 1 1 1 1 1 .667 091 .289 .186 .237 .667 .405 .299 .667 044 395 .126 327 (a) At 300 K Gas Air Argon Butane Carbon dioxide Carbon monoxide Ethane
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