Ch6 answers_1

Ch6 answers_1 - Answers to Assigned Problems from Chapter...

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
Answers to Assigned Problems from Chapter Six 6.1 (a) σ = -0.667 kJ/K, impossible; (b) σ = 0, reversible; (c) σ = +0.667 kJ/K, irreversible 6.2 η = 65% 6.7 Q_dot max = Q_dot, s x (1-T 0 /T s )/(1-T 0 /T u ) 6.23 T 2 = -51.4 C; x 2 = 0.5378; h 2 = 116.88 kJ/kg 6.28 (a) s 2 -s 1 = 1.7317 kJ/kg-K; (b) s 2 -s 1 = 1.7235 kJ/kg-K; s 2 -s 1 = 1.8033 kJ/kg-K 6.30 (a) s 2 -s 1 = -0.4995 kJ/kg-K; (b) s 2 -s 1 = -0.5028 kJ/kg-K; (c) s 2 -s 1 = -0.5027 kJ/kg-K 6.63 (a) W = 50.1 Btu on the air; (b) T 2 = 848 R, σ = 0.017 Btu/R 6.76 (a) T 2 = 593 R; (b) p 2 = 1.458 atm; (c) σ = 0.01928 Btu/R 6.83 W = 0.591 kJ input to the cycle 6.92 p i = 2.12 bar 6.95 σ _dot = 8.35 x 10 -5 kW/K; W t = 0.02 kW 6.103 W max = 1 MW 6.132 (a) w = 447.8 kJ/kg, p 2
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.
Ask a homework question - tutors are online