Question

Carbon dioxide enters an adiabatic compressor at 150 kPa and 300 K at a rate of 1.8 kg/s and exits at 600 kPa and 450 K. Neglecting the kinetic energy changes, determine the isentropic efficiency of the compressor. (Round the final answer to one decimal place.) The isentropic efficiency of the compressor is The table for the ideal-gas specific heats of various common gases is given below. a 350 450 400 500 600 650 Ideal-gas specific heats of various common gases (Continued) (b) At various temperatures w kerk Quiksik a herkek aurkek Temperature, Carbon dioxide, CO, 250 1.003 0.716 1.401 0.791 0.602 1.314 300 1.005 0.718 1.400 0.846 0.657 1.288 1.008 0.721 1.398 0.895 0.706 1.268 1.013 0.726 1.395 0.939 0.750 1.252 1.020 0.733 1.391 0.978 0.790 1.239 1.029 0.742 1.387 1.014 0.825 1.229 550 1.040 0.753 1.381 1.046 0.857 1.220 1.051 0.764 1.376 1.075 0.886 1.213 1.063 0.776 1.370 1.102 0.913 1.207 700 1.075 0.788 1.364 1.126 0.937 1.202 750 1.087 0.800 1.359 1.148 0.959 1.197 1.099 0.812 1.354 1.169 0.980 1.193 1.121 0.834 1.344 1.204 1.015 1.186 1000 1.142 0.855 1.336 1.234 1.045 1.181 Hydrogen, H Nitrogen, Ne 14.051 9.927 1.416 1.039 0.742 1.400 300 10.183 1.405 1.039 0.743 1.400 14.427 10.302 1.400 1.041 0.744 1.399 14.476 10.352 1.398 1.044 0.747 1.397 450 14.501 10.377 1.398 1.049 0.752 1.395 14.513 10.389 1.397 1.056 0.759 1.391 550 14.530 10.405 1.396 1.065 0.768 1.387 600 14.546 1.396 1.075 0.778 1.382 14.571 10.447 1.395 1.086 0.789 1.376 700 14.604 10.480 1.394 1.098 0.801 1.371 14.645 10.521 1.392 1.110 0.813 1.365 800 14.695 10.570 1.390 1.121 0.825 1.360 900 14.822 10.698 1.385 1.145 0.849 1.349 1000 14.983 10.859 1.380 1.167 0.870 1.341 800 Kj/kg-K Kj/kg-K * Carbon monoxide, CO 1.039 0.743 1.400 1.040 0.744 1.399 1.043 0.746 1.398 1.047 0.751 1.395 1.054 0.757 1.392 1.063 0.767 1.387 1.075 0.778 1.382 1.087 0.790 1.376 1.100 0.803 1.370 1.113 0.816 1.364 1.126 0.829 1.358 1.139 0.842 1.353 1.163 0.866 1.343 1.185 0.888 1.335 Oxygen, O 0.913 0.653 1.398 0.918 0.658 1.395 0.928 0.668 1.389 0.941 0.681 1.382 0.956 0.696 1.373 0.972 0.712 1.365 0.988 0.728 1.358 1.003 0.743 1.350 1.017 0.758 1.343 1.031 0.771 1.337 1.043 0.783 1.332 1.054 0.794 1.327 1.074 0.814 1.319 1.090 0.830 1.313 250 350 400 500 650

Answer 1

Stepl: Pia iso kpa, 300k P2 = 6ookpa, 4 SOK ma 18kg 300+450 - 375k 2 350K: -1.288 Step 4ook - 1252 050 1 25 315 - -0.036 - -7.2X104 - -0.018 - 1.27 T2 = 402.826K r=1.27 Step3 nc = (402.826 - 300x100 1 450 - 300 JA Inc- 68.55% compressor efficiency