(Solved): Problem 1: Please draw an energy flow diagram and state given, assumptions, and equations sued to ...

Problem 1: Please draw an energy flow diagram and state given, assumptions, and equations sued to solve. (i) A closed and externally well-insulated piston-cylinder device contains air. An electric resistance heater adds energy to the air causing it to expand in the cylinder and moving the piston. Show mass and energy flows at the boundary for the following systems: (a) Only air inside the cylinder (b) Only electric resistance heater (c) Air and electric resistance heater (ii) A water-tube boiler in a thermal power plant involves liquid water entering at the bottom and water vapor exiting at the top while combustion gases, generated from air and fuel in the furnace, flow over the water tubes. External rigid wall of the boiler is well-insulated. Show mass and energy flows at the boundary for the following systems: (a) Only water tubes (b) Combined water tubes and furnace i.e. the entire boiler