Question

LUI 3 → 4 points Determine the heat transfer required to convert 10 kg of water at a pressure of 19 bar and a temperature of 22°C into steam of dryness fraction 0.7, at the same pressure. Use excerpts from the Steam Tables below for your calculation. + Saturated Water and Steam ST 1 Sys [kJ/kg K] 2 р [bar] 16 17 18 19 20 TE [°C] 201.4 204.3 207.1 209.8 212.4 [m/kg] 0.1237 0.1167 0.1104 0.1047 0.09957 ur Mg [kJ/kg] 857 2596 870 2597 883 2598 895 2599 907 2600 he hogy h. [kJ/kg] 859 1935 2794 872 1923 2795 885 1912 2797 897 1901 2798 909 1890 2799 2.344 2.372 2.398 2.423 2.447 4.078 4.028 3.981 3.936 3.893 6.422 6.400 6.379 6.359 6.340 3 4 hi hy T [°C] 5 [m /kg) Ps [bar] 0.02337 0.02486 0.02642 0.02808 0.02982 20 21 22 23 24 ON 57.84 54.56 51.49 48.62 45.92 83.9 88.0 92.2 96.4 100.6 [kJ/kg] 2453.7 2451.4 2449.0 2446.6 2444.2 2537.6 2539.4 2541.2 2543.0 2544.8 0.296 0.310 0.325 0.339 0.353 (kJ/kg K] 8.370 8.334 8.297 8.261 8.226 8.666 8.644 8.622 8.600 8.579 7

Answer 1

-CCS Heat transfer Required (8) = m (hy-by) lokg 122 27.7- 94.062) KJ tg 91336-38 KI 21.34 MJ Ano