5 kg of refrigerant 134a at a pressure of 7.5 bar and 0.7 quality is to be cooled inside a sealed rigid container until the pressure reaches 2.1 bar. Referring to the tables in Appendix A.4, calculate the required amount of energy transfer as heat in kJ.

Data From Appendix A.4

Transcribed Image Text:

T/ psat /v/ SLV / sv/ K MPa m³/kg m³/kg kJ/kg kJ/kg kJ/kg kJ/(kg. K) kJ/(kg .K) kJ/(kg .K) -314.59 241.67-72.92 -1.3 1.2083 -0.0721 1.1754 -0.0831 208 1.1437 212 216 220 224 200 0.006566 0.000679 2.473 204 0.008784 0.000683 1.884 -310.16 239.79-70.37-1.2585 0.01160 0.000687 1.453 -305.68 237.89-67.79-1.2368 0.01513 0.000691 1.134 -301.17 235.97-65.20 -1.2153 1.1131 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 -273.16 223.80-49.36 -1.0904 0.9483 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 0.8409 258 0.1632 0.000755 0.1227 -245.92 211.14-34.78 -0.9804 0.8184 262 0.1918 0.000762 0.1053 -240.79 208.63 -32.16 -0.9607 0.7963 266 0.2242 0.000770 0.09078-235.60 206.03-29.56 -0.9411 0.7746 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 278 0.3476 0.000796 0.05963-219.65 197.71-21.93-0.8829 0.7112 282 0.3986 0.000806 0.05222 -214.19 194.73-19.46 -0.8635 0.6905 286 0.4551 0.000816 0.04587-208.66 191.63-17.03 -0.8442 0.6700 290 0.5177 0.000827 0.04041-203.04 188.40-14.64 -0.8249 0.6497 294 0.5866 0.000838 0.03570-197.34 185.03-12.31 -0.8055 0.6294 298 0.6623 0.000851 0.03161-191.55 181.51 -10.04 -0.7862 0.6091 302 0.7451 0.000864 0.02805-185.66 177.82 -7.84 -0.7668 0.5888 LV h™V / hv / s²/ -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 -0.1717 -0.1730 -0.1742 -0.1752 -0.1762 -0.1771 -0.1780