A regenerative cycle operates with steam supplied at 30 bar and 300 °C, and the condenser pressure is 0.08 bar. The extraction points for two heaters (one

closed and one open) are 3.5 bar and 0.7 bar, respectively. Calculate the

thermal efficiency of the point neglecting pump work.​

Air contained in a piston-cylinder assembly undergoes a process from an bar. the initial pressure of 1 bar and temperature of 400 k to a final pressur initial volume of air is 0.2 m3. the process is described by pv- constant. assuming ideal gas behavior and neglecting kinetic and potential energy effects, determine the a)-mass of air, in kg b)-work for the process, in kj c)-heat transfer for the process, in kj pts