Question

ENGR 3571 Thermodynamics Unit 1 Session 1: Specify a system for thermodynamics analysis in terms of its boundary, conserved quantities, and interactions. For cach of the systems described below the system boundary is shown by a dashed line. Determine whether each system is closed or open, with fixed control surface or moving control surface: c) Diesel engine cylinder during compression (valves closed) d) Diesel engine cylinder during exhaust (exhaust valve open) Hints:A control surface is another name for the system boundary

Answer 1

c. In this case system is closed with moving control surface

d. In this case system is open with moving control surface