Refrigerant 134a in a heat pump is compressed in an adiabatic piston?cylinder system from 0.14 MPa, 280
Question:
Refrigerant 134a in a heat pump is compressed in an adiabatic piston?cylinder system from 0.14 MPa, 280 K to 1 MPa, 400 K. Calculate the work done on the fluid by the piston. Use the tables in Appendix A.4 for data.
Data From A.4
Transcribed Image Text:
T/ UV /h²/ hLV / hv / s²/ SLV / sv / K m³/kg m³/kg kJ/kg kJ/kg kJ/kg kJ/(kg. K) kJ/(kg K) kJ/(kg .K) 200 0.006566 0.000679 2.473 -314.59 241.67-72.92 -1.3 1.2083 -0.0721 204 0.008784 0.000683 1.884 -310.16 239.79 -70.37-1.2585 1.1754 -0.0831 208 0.01160 0.000687 1.453 -305.68 237.89-67.79-1.2368 1.1437 1.1131 212 0.01513 0.000691 1.134 -301.17 235.97-65.20 -1.2153 216 220 224 -49.36 -1.0904 0.9483 0.01950 0.000696 0.8944 -296.62 234.02 -62.59 -1.1941 1.0834 0.02488 0.000700 0.7127 -292.02 232.05-59.97 -1.1730 1.0548 0.03141 0.000705 0.5734-287.37 230.04 -57.33-1.1521 1.0270 228 0.03928 0.000710 0.4655-282.68 228.00 -54.68 -1.1314 1.0000 232 0.04869 0.000715 0.3810 -277.95 225.92 -52.02 -1.1108 0.9738 236 0.05984 0.000720 0.3143-273.16 223.80 240 0.07296 0.000726 0.2612 -268.32 221.62 -46.70-1.0701 0.9234 244 0.08829 0.000732 0.2185-263.44 219.40-44.04 -1.0499 0.8992 246.99 0.101325 0.000737 0.1920 -259.76 217.70 -42.05-1.0350 0.8814 250 0.1160 0.000741 0.1692 -256.01 215.95 -40.06 -1.0199 0.8638 254 0.1380 0.000748 0.1437 -250.99 213.58 -37.41 -1.0001 258 0.1632 0.000755 0.1227-245.92 211.14-34.78 -0.9804 262 0.1918 0.000762 0.1053 -240.79 208.63 -32.16 -0.9607 266 0.2242 0.000770 0.09078 -235.60 206.03-29.56 -0.9411 270 0.2607 0.000778 0.07861 -230.35 203.36 -26.99 -0.9217 0.7532 274 0.3017 0.000787 0.06834 -225.03 200.59 -24.44 -0.9022 0.7321 0.8409 0.8184 0.7963 0.7746 psat / ¹/ MPa -0.0931 -0.1023 -0.1106 -0.1182 -0.1251 -0.1313 -0.1370 -0.1421 -0.1467 -0.1508 -0.1536 -0.1561 -0.1592 -0.1620 -0.1644 -0.1666 -0.1685 -0.1702
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Related Book For
Thermodynamics Fundamentals And Engineering Applications
ISBN: 9780521862738
1st Edition
Authors: William C. Reynolds, Piero Colonna
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