Thermodynamics 2

Sem 2 2013/2014

Assignment 3
Solve all the problems below. Problems given are from the textbook “Thermodynamics: An Engineering Approach 7th Edition in SI Unit, Cengel, Boles”. Please make sure that steps and answers are written clearly. You do not need to rewrite the questions. However, please write the question numbers clearly. Please write clearly and properly. For example, when sketching diagrams or drawing lines, use ruler etc. Please use this page as the front page of your report. 1. 11-2 Answer: (a) 3.72 (b) 128 kJ/kg (c) 34.6 kJ/kg 2. 11-3 Answer: (a) 8.31 (b) 0.2351 (c) 18.45 kJ/kg 3. 11-4C to 11-10C 4. 11-11 Answer: 9.7% 5. 11-12 Answer: 6.46, 61.9 kW 6. 11-13 Answer: (a) 7.41 kW, 1.83 kW (b) 9.23 kW (c) 4.06 7. 11-15 Answer: 4.2%, 4.2% 8. 11-16 Answer: (a) 9.42 kW, 3.63 kW (b) 74.1% (c) 2.60 9. 11-20 Answer: (a) 0.00727 kg/s (b) 672 kPa (c) 2.43 10. 11-22 Answer: (a) 159.3 kJ/kg, 51.51 kJ/kg, 3.093 (b) 149.2 kJ/kg, 41.67 kJ/kg, 3.582 11. 11-23 Answer: (a) 3.317 kW, 4.534 kW, 1.217 kW, 2.725 (b) 3.931 kW, 3.947 kW, 1.016 kW, 2.886 12. 11-57 Answer: (a) 0.212 kg/s (b) 25.7 kW (c) 2.68 13. 11-58 Answer: 6.58 kW, 4.50 kW, 3.24 14. 11-129 to 11-136 15. 11-138

Name: _____________________________________ ID No: _____________________________________ Submission Date: _____________________________ Section: ____________________________________ Lecturer: ____________________________________