Question

You decide to build a new super-space-time-tunnel-vehicle to escape the fast approaching viruses and zombies. Since you had to move fast all you had is a Dual Cycle Engine to power your new space-vehicle. The compression ratio is 14. The air is at 1 bar pressure and 27 degrees Celsius at the intake and at 1927 degrees Celsius after the two-stage heat-addition process (after both constant volume and constant pressure heat addition). The total amount of heat added is 1520.4 kJ/kg. Assume variable specific heats for air (VSH) Find: (a) List ALL assumptions (detail Standard Air assumptions) and show a P-v and T-S diagram of your process. (b) The fraction of heat (in %) transferred during the constant volume part of heat addition. (c) The thermal efficiency of your cycle (in %).  

Answer 1