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Refrigerant R134a exists at 530 kPa. Determine the specific volume and the specific enthalpy. Use the attached table. Enthalpy, kJ/kg Temp- vapor, Evap., R-134a TABLE

Refrigerant R134a exists at 530 kPa. Determine the specific volume and the specific enthalpy. Use the attached table.

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Enthalpy, kJ/kg Temp- vapor, Evap., R-134a TABLE A-11 Saturated refrigerant-134a-Temperature table Specific volume, Internal m/kg energy, kJ/kg Press., Sat. Sat. Sat. Sat. P liquid, vapor, liquid, TC MPa V V, U ug -40 0.05164 0.0007055 0.3569 -0.04 204.45 -36 0.06332 0.0007113 0.2947 4.68 206.73 -32 0.07704 0.0007172 0.2451 9.47 209.01 -28 0.09305 0.0007233 0.2052 14.31 211.29 -26 0.10199 0.0007265 0.1882 16.75 212.43 -24 0.11160 0.0007296 0.1728 19.21 213.57 -22 0.12192 0.0007328 0.1590 21.68 214.70 -20 0.13299 0.0007361 0.1464 24.17 215.84 18 0.14483 0.0007395 0.1350 26.67 216.97 - 16 0.15748 0.0007428 0.1247 29.18 218.10 -12 0.18540 0.0007498 0.1068 34 25 220.36 -8 0.21704 0.0007569 0.0919 39.38 222.60 0.25274 0.0007644 0.0794 44.56 224.84 0 0.29282 0.0007721 0.0689 49.79 227.06 4 0.33765 0.0007801 0.0600 55.08 229.27 8 0.38756 0.0007884 0.0525 60.43 231.46 12 0.44294 0.0007971 0.0460 65.83 233.63 16 0.50416 0.0008062 0.0405 71.29 235.78 20 0.57160 0.0008157 0.0358 76.80 237.91 24 0.64566 0.0008257 0.0317 82.37 240.01 26 0.68530 0.0008309 0.0298 85.18 241.05 28 0.72675 0.0008362 0.0281 88.00 242.08 30 0.77006 0.0008417 0.0265 90.84 243.10 32 0.81528 0.0008473 0.0250 93.70 244.12 34 0.86247 0.0008530 0.0236 96.58 245.12 36 0.91168 0.0008590 0.0223 99.47 246.11 38 0.96298 0.0008651 0.0210 102.38 247.09 40 1.0164 0.0008714 0.0199 105.30 248.06 42 1.0720 0.0008780 0.0188 108.25 249.02 44 1.1299 0.0008847 0.0177 111.22 249.96 48 1.2526 0.0008989 0.0159 117 22 251.79 52 1.3851 0.0009142 0.0142 123.31 253.55 56 1.5278 0.0009308 0.0127 129.51 255.23 60 1.6813 0.0009488 0.0114 135.82 256 81 70 2.1162 0.0010027 0.0086 152.22 260.15 80 2.6324 0.0010766 0.0064 169.88 262.14 90 3.2435 0.0011949 0.0046 189.82 261.34 100 3.9742 0.0015443 0.0027 218.60 248.49 Sat. liquid, hi 0.00 4.73 9.52 14.37 16.82 19.29 21.77 24.26 26.77 29.30 34.39 39.54 44.75 50.02 55.35 60.73 66.18 71.69 77.26 82.90 85.75 88.61 91.49 94.39 97.31 100.25 103.21 106.19 109.19 112 22 118.35 124 58 130.93 137.42 154.34 172.71 193.69 224.74 hy 222.88 220.67 218.37 216.01 214.80 213.57 212.32 211.05 209.76 208.45 205.77 203.00 200.15 197.21 194.19 191.07 187.85 184.52 181.09 177.55 175.73 173.89 172.00 170.09 168.14 166.15 164.12 162.05 159.94 157.79 153.33 148.66 143.75 138.57 124.08 106.41 82.63 34.40 Sat. vapor, he 222.88 225.40 227.90 230.38 231.62 232.85 234.08 235.31 236 53 237.74 240.15 242.54 244.90 247 23 249.53 251.80 254.03 256.22 258.35 260.45 261.48 262.50 263.50 264.48 265.45 266.40 267.33 268.24 269.14 270.01 271.68 273.24 Entropy, kJ/(kg) Sat. Sat. liquid, vapor, S Sg 0.0000 0.9560 0.0201 0.9506 0.0401 0.9456 0.0600 0.9411 0.0699 0.9390 0.0798 0.9370 0.0897 0.9351 0.0996 0.9332 0.1094 0.9315 0.1192 0.9298 0.1388 0.9267 0.1583 0.9239 0.1777 0.9213 0.1970 0.9190 0.2162 0.9169 0.2354 0.9150 0.2545 0.9132 0.2735 0.9116 0.2924 0.9102 0.3113 0.9089 0.3208 0.9082 0.3302 0.9076 0.3396 0.9070 0.3490 0.9064 0.9058 0.3678 0.9053 0.3772 0.9047 0.3866 0.9041 0.3960 0.9035 0.4054 0.9030 0.4243 0.9017 0.4432 0.9004 0.4622 0.8990 0.4814 0.8973 0.5302 0.8918 0.5814 0.8827 0.6380 0.8655 0.7196 0.8117 0.3584 274.68 275.99 278.43 279.12 276.32 259.13 Source for Tables 4-8 through A-10 M. J. Moran and H. N. Shapiro, Fundamentals of Engineering Thermodynamics, 2nd ed. (New York John Wiley & Sons, 1992), pp. 710-15. Originally based on equations from DP Wilson and RS Basu, "Thermodynamic Properties of a New Stratospherically Safe Working Fluid Refrigerant-134a," ASHRAE Trans. 94. Pt. 2 (1988), pp. 2095-118. Used with permission. 916 Temp, Tom 0.12 R-134a TABLE A-12 Saturated refrigerant-134a-Pressure table Specific volume, m/kg Sat. Sat. Press., liquid, vapor, PMP Vo 0.06 -37.07 0.0007097 0.3100 0.08 -31.21 0.0007184 0.2366 0.10 - 26.43 0.0007258 0.1917 -22.36 0.0007323 0.1614 0.14 -18.80 0.0007381 0.1395 0.16 -15.62 0.0007435 0.1229 0.18 -12.73 0.0007485 0.1098 0.20 -10.09 0.0007532 0.0993 0.24 -5.37 0.0007618 0.0834 0.28 -1.23 0.0007697 0.0719 0.32 2.48 0.0007770 0.0632 0.36 5.84 0.0007839 0.0564 0.4 8.93 0.0007904 0.0509 0.5 15.74 0.0008056 0.0409 0.6 21.58 0.0008196 0.0341 0.7 26.72 0.0008328 0.0292 0.8 31.33 0.0008454 0.0255 0.9 35.53 0.0008576 0.0226 1.0 39.39 0.0008695 0.0202 1.2 46.32 0.0008928 0.0166 1.4 52.43 0.0009159 0.0140 1.6 57.92 0.0009392 0.0121 1.8 62.91 0.0009631 0.0105 2.0 67,49 0.0009878 0.0093 2.5 77.59 0.0010562 0.0069 3.0 86.22 0.0011416 0.0053 Internal energy, kJ/kg Sat. Sat. liquid, vapor, u 3.41 206.12 10.41 209.46 16.22 212.18 21.23 214.50 25.66 216.52 29.66 218.32 33.31 219.94 36.69 221,43 42.77 224.07 48.18 226.38 53.06 228.43 57.54 230.28 61.69 231.97 70.93 235.64 78.99 238.74 86.19 241.42 92.75 243.78 98.79 245.88 104.42 247.77 114.69 251.03 123.98 253.74 132.52 256.00 140.49 257.88 148.02 259.41 165.48 261.84 181.88 262.16 Enthalpy, kJ/kg Sat. Sat. liquid, Evap. vapor, hy he 3.46 221 27 224.72 10.47 217.92 228.39 16.29 215.06 231.35 21.32 212.54 233.86 25.77 210.27 236.04 29.78 208.18 237.97 33.45 206.26 239.71 36.84 204 46 241.30 42.95 201.14 244,09 48.39 198.13 246.52 53 31 195.35 248.66 57.82 192.76 250.58 62.00 190.32 252.32 71.33 184.74 256.07 79.48 179.71 259.19 86.78 175.07 261.85 93.42 170.73 264.15 99.56 166.62 266.18 105.29 162.68 267.97 115.76 155.23 270.99 125.26 148.14 273,40 134.02 141.31 275.33 142.22 134.60 276.83 149.99 127.95 277.94 168.12 111.06 279.17 185.30 92.71 278.01 Entropy, kJ/(kg .K) Sat. Sat. liquid, vapor, S Se 0.0147 0.9520 0.0440 0.9447 0.0678 0.9395 0.0879 0.9354 0.1055 0.9322 0.1211 0.9295 0.1352 0.9273 0.1481 0.9253 0.1710 0.9222 0.1911 0.9197 0.2089 0.9177 0.2251 0.9160 0.2399 0.9145 0.2723 0.9117 0.2999 0.9097 0.3242 0.9080 0.3459 0.9066 0.3656 0.9054 0.3838 0.9043 0.4164 0.9023 0.4453 0.9003 0.4714 0.8982 0.4954 0.8959 0.5178 0.8934 0.5687 0.8854 0.6156 0.8735 R-134a 1.1407 TABLE A-13 - Superheated refrigerant-134a s v c mlkg ) $ kJ/kg kJ/kg kJ/(kg-K) m/kg kJ/kg kJ/kg kJ/(kg .K) m/kg kJ/kg kJ/kg kJ/(kg-K) P=0.06 MPa (= -37.07 C) P=0.10 MPa (= -26.43C) P=0.14 MPa (-18.80C) Sat 0.31003 206.12 224.72 0.9520 0. 19170 212.18 231,35 0.9395 0.13945 216.52 236.04 0.9322 -20 0.33536 217.86 237.98 1 0062 0.19770 216.77 236 54 0.9602 10 0 34992 224.97 245.96 10371 0.20686 22401 244 70 0.9918 0.14549 223.03 243.40 09606 0 0.36433 232.24 254 10 1.0675 0.21587 231.41 252.99 1.0227 0.15219 230.55 251.86 0.9922 10 0.37861 239.69 262.41 CO. 1.0973 1.073 0.22473 238,96 261.43 1.0531 0.15875 238 21 260.43 1.0230 20 0.39279 247 32 270.89 c. 1.1267 023349 246.67 270.02 1.0829 0.16520 246.01 269.13 1.0532 30 0.40688 255 12 279,53 37 1.1557 do 100 0.24216 254.54 278.76 419.30 . 1.1122 200 0.17155 253 96 277.97 40 0.42091 263.10 288 35 1 0828 1.1844 0.25076 262.58 287 66 . 1.1411 0.17783 262.06 286.96 we 1. 1120 50 0.43487 271.25 297 34 1.2126 0.25930 270.79 296.72 1.1996 0.18404 270.32 296.09 60 0.44879 279.58 306 51 12405 0.26779 279.16 305.94 1.1977 0.19020 278.74 305 37 1.1690 70 0.46266 288.08 315.84 1.2681 0.27623 287.70 315 32 1.2254 0.19633 287.32 314.80 1.1969 80 0.47650 296.75 325 34 1.2954 028464 296.40 324.87 1.2528 0.20241 296.06 324,39 1 2244 90 0.49031 305.58 335.00 1.3224 0.29302 305.27 334.57 1.2799 0.20846 304.95 334 14 1.2516 100 0.21449 314,01 344.04 1.2785 P = 0.18 MPa (T-12.73C) P=0.20 MPa ( = -10.09C) P=0.24 MPa (= -5.37'C) Sat. 0.10983 219.94 239.71 0.9273 0.09933 221.43 241.30 0.9253 0.08343 224.07 244,09 0.9222 -10 0.11135 222.02 242.06 0.9362 0.09938 221.50 241.38 0.9256 0 0.11678 229.67 250.69 0 9684 0.10438 229.23 250.10 0.9582 0.08574 228,31 248.89 0.9399 100.12207 237.44 259.41 0.9998 0.10922 237.05 258.89 0.9898 0.08993 236 26 257.84 0.9721 20 0.12723 245 33 268.23 1.0304 0.11394 244.99 267.78 1.0206 0.09339 244.30 266 85 30 0.13230 253.36 277.17 1.0034 re 1.0604 0.11856 253.06 276.77 1.0508 0.09794 252.45 275.95 40 0.13730 26153 286.24 1,0339 Wed 02.45 275 1.0898 0.12311 261.26 285 88 1.0804 0.10181 260 72 285.16 50 0.14222 269.85 295 45 1.0637 1.1187 0.12758 289.61 295.12 1.1094 0.10562 269.12 294.47 1 oso 1.0930 60 0.14710 278.31 264 1.1472 0.13201 278.10 304.50 1. 1380 0.10937 277.67 303.91 70 0.15193 286.93 314.28 1.1218 1.1753 0.13639 286.74 314.02 1.1661 0.11307 286 35 313.49 1.1501 80 0.15672 295.71 323.92 1.2030 0.14073 295.53 323.68 1.1939 0.11674 295.18 323.19 90 0.16148 304.63 333.70 1.1780 1.2903 0.14504 304.47 333.48 1.2212 0.12037 304.15 33304 1.2055 100 0.16622 313.72 343.63 1.2573 0.14932 313.57 343.43 1.2483 0.12398 313 27 343.03 1.2326 P = 0.28 MPa -1.23C) P=0.32 MPa (T=2.48C) P=0.40 MPa (= 8.93C) Sat. 0.07193 226.38 246.52 0.9197 0.06322 228.43 248.66 0.9177 0.05089 231 97 252 32 0.9145 0 0.07240 227.37 247.64 0.9238 10 007613 235.44 256.76 09566 0.06576 234.61 255.65 0.9427 0.05119232.87 253.35 0.9182 20 0.07972 243.59 265.91 0.9883 0.06901 242.87 264.95 0.9749 0.06397 241.37 262 96 0.9515 30 0.08320 251.83 275.12 1.0192 0.07214 251,19 274 28 1.0062 0.06662 249.89 272.54 0.8937 40 0.08660 0.08660 260.17 260.17 284.42 1.0494 0.07518 259.61 283.67 1.03 . 0.05917 258.47 282.14 1.0148 50 008992 268.64 293 81 1.0789 0.07815 268.14 293.15 1.0665 aldies 0.06164 267 13 291.79 1.0452 60 0.09319 277 23 303 32 1.1079 0.08106 276.79 302.72 1.0957 0.06405 275.89 301.51 1.0748 70 0.09641 285 96 312.95 00 wa. 1.1364 0.08392 285.56 312.41 1.1243 0.06641 284.75 311.32 1.1038 80 0.09960 294.82 322.71 1.1644 0.08674 294.46 322.22 1.1525 10 0.06873 293.73 321.23 1.1322 90 0.10275 303.83 332.60 1.1920 0.08953 303.50 332.15 1.1802 0.07102 302 84 331.25 1.1602 100 0.10587 312.98 342.62 1.2193 0.09229 312.68 342 21 1.1076 0.07327 312.07 341.38 oc 1.1878 110 0.10897 322 27 352.78 1.2461 0.09503 322.00 352.40 1.2345 0.0755032144 351.64 1.2149 120 0.11205 331.71 363.08 1.2727 0.09774 331.45 362.73 1.2611 0.07771 330,94 362.03 1.2417 130 0.07991 340.58 372.54 1.2681 140 0.08208 350.35 383.18 1.2941 918 278.31 3040 1.0367 R-134a 330.30 0.04468 267 97 268.68 TABLE A-13 Superheated refrigerant-134a (Concluded) C "C m/kg kJ/kg RJ/kg kJ/kg K) Prag ( Kalng kulkg kulkgK) /kg KJ/kg kJ/kg /K) kJ/kg-K) P=0.50 MPa = 15.74"C) P=0.60 MPa (21.58C) P=0.70 MPa ( = 26.72C) Sat 0.040B6 253.64 256 07 0.9117 0.03409 239.74 259.19 0.9097 0.02918 241.42 261.85 0.9080 200.04188 239.40 260.34 0.9264 30 0.04416 248.20 270.26 0.9597 0.03581 246.41 267.89 0.9388 0.02979 244.51 285 37 0.9197 40 0.04633 256.99 280 16 0.9918 0.03774 255 45 278.09 0.9719 0.00157 253.83 275.93 0.9539 50 0.04842 842 285.80 . 290.04 ce 1.0229 0.03958 264.48 288 23 1.0037 260 23 003324 263.08 286 36 0.9867 An 0.05043 274.73 299,95 10531 0001 0.04134 273.54 298 35 . 1.03.46 0.03492 0.05240 272.31 296.69 10182 70 0.00240 283.72 309.92 1.0825 0.04304 308.48 282.66 c.co 1.0645 0.03634 281.57 00 800.05432 10487 30701 292.80 319.96 1.1114 w . 0.04469 ma 291 86 318.67 1. 0.03781 290.89 31735 1.0784 90 0.05620 302.00 330.10 1.1397 1.13 0.04631 301.14 32693 1.1225 sta WC 0.03924 300.27 32774 100 1.1074 0.05805 311.31 340.33 1.1675 0.04790 S10.50 310.53 339 27 1.1505 0.04054 309.74 338.19 1.1358 110 0.05088 320.74 350.68 1.1949 004946 320.03 S.US 349.70 1. 1781 0.04201 319.31 348.71 1.1637 120 0.05168 361.14 1.2218 0.06099 329,64 360.24 1 2053 . 0.04335 328.98 OS 359.33 1.1910 130 0.06347 339.98 371.72 1.2494 0.05251 339.38 10 370.88 1.2320 338.76 370.04 1.2179 140 0.06524 349.79 382.42 12746 0.05402 349.23 381.64 1 2584 0.04599 348.66 380.86 1.2444 150 0.05550 359.21 39252 1.2844 0.04729 358.68 391.79 1.2706 160 0.05698 369 32 403.51 1.3100 0.04857 369.82 402.82 1.2963 P=0.80 MPal-31.33*C) P-0.90 MPa (1. = 35.53C) P= 1.00 MPa (1. = 39.39C) Sat 0.02547 243.78 264.15 0.9066 0.02256 245.88 266.18 0.9054 0.02020 247.77 0.9043 40 0.02691 252.13 273 66 0.9374 0.02325 250.32 271.25 0.9217 0.02029 248.39 0.9066 50 0.02846 281.82 284 39 0.9711 0.02472 260.09 282.34 0.9566 0.02171 258.48 280 19 0.9428 80 0.02992 271.04 294.90 1.0034 0.02609209.72 293 21 0.9997 0.02301 268.35 29136 0.9768 70 0.03131 280.45 09 305.50 1.0345 0.02738 279.30 303 94 1.0214 0.02423 278.11 302 34 1.0038 80 0.03284 OV 289.89 316.00 1.0847 w 0.02861 288.87 w 314 62 1.0521 0.02538 287.82 31320 1.0405 90 0.03393 299 37 326.52 1.0940 0.02980 298.46 325 28 1.0819 0.02649 297.53 324 01 1.0707 100 0.03519 308.93 33709 1.1227 0.03095 een 308.11 335 96 1.1109 0.02755 30727 110 334 B2 1.1000 0.03642 318.57 ce 347.71 wer 1.1508 003207 100 317.82 346.ba 1.1392 0.02858 317.06 345.65 1.1288 120 0.03762 328 31 ! 358.40 1.1784 0.03316 327.62 357.47 1.1670 0.02959 326.93 356.52 1.1567 130 0.03881 338.14 369.19 1.2055 003423 337.52 388.33 1.1943 0.03058 338.88 word 367.46 1.1841 140 0.03997 348.09 380.07 1.2321 0.00529 347.51 379.27 1.2211 0.03154 346.92 378.46 1.2111 150 0.04113 358.15 391.05 1.2584 0.03633 357 61 390.31 12475 0.03250 357.06 389.58 1.2376 160 0.04227 368 32 402.14 1.2843 0.00736 367.82 401.44 1.2735 0.03344 367.31 400.74 1.2638 170 0.04340 378.61 41333 1.3098 0.03838 378.14 412.68 1.2992 0.03436 377.66 412.02 1.2895 180 0.04452 389.02 424 63 1.3351 0.03939 388.57 424.02 1.3245 0.03528 388.12 423.40 1.3149 P-1.20 MPa (T-46,32C) P=1.40 MPa (T. = 52.43C) P= 1.60 MPa (T-57.92C) Sat. 0.01663 251.03 270.99 0.9023 0.01405253.74 273.40 0.9003 0.01200 256.00 275.33 0.8982 0.01712 275.52 0.9164 60 0.01835 266.42 287.44 0.9527 0.01495 262.17 283 10 0.9297 0.01233 258.48 278.20 0.01947 0.9069 275,59 298.96 0.9868 0.01603 295 31 0.9658 0.01340 289.89 291.33 0.9457 0.02051 285.62 310-24 1010 1.0192 283.29 307.10 0.9997 0.01435 280.78 303.74 09813 0.02150 296.59 321,39 1.0503 0.01792 293.56 318.63 1.0319 0.01521 291.39 100 * 0.02244 1.0148 306,54 332.47 1.0804 ng 0.01878 303.73 OER 1.0628 330.02 * 0.01601 301 BA 30184 327.46 110 10467 218 0.02336 315.50 601960 343.52 1.1096 0.01960 313.68 341.32 1 0927 0.01677 312.20 339.04 120 1.0773 100 0.02423 . 325 51 354 58 0.02039 1.1381 3040 324.05 352.59 1216 075 0.01750 299 1.1216 ce 350.53 322.53 130 0.02508 1 1089 . 335.58 32 365.60 0.02115 1.1680 334.25 363 86 1.1501 16 0.01820 23 332.87 361.99 1.1357 140 0.02592 345.73 376,83 One 1.1833 0.02189 344 50 so 375 1.1777 375.15 0.01687 1734 343.24 26 OK 1.1638 150 373.44 0.02674 355.95 398.04 1920 3548 0.02262 354.82 386.49 2018 1.2048 0.01953 35 353.66 1. 1912 160 0.02754 366.27 399.33 1.2465 0.02333 36522 397 89 1.2315 0 02017 364.15 396.43 1.2181 170 0.02834- 376.69 410.70 1.2724 0.02403 375.71 409.38 1.2578 0.02080 374.71 407.99 1.2445 180 0.02912 387 21 422.16 1.2980 0.02472 386.29 420.50 1.2834 0 02142 386.35 419.62 1.2704 190 002541 39696 432.53 1 3088 0.02203 396.00 431 33 1.2960 200 0.02608 407.73 444.24 13338 0.02263 406.90 443.11 1,3212 254 98 272.87 888888 0.01701 315.72 384.91 919

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