Question:
An ideal incomplete expansion cycle uses steam generated at
Last updated: 6/27/2023
An ideal incomplete expansion cycle uses steam generated at 1 85 MPa The release condition is dry and saturated Exhaust steam is at 0 03 MPa and has 10 58 quality The actual engine uses 1000 kg h of steam The brake engine efficiency is 60 and the mechanical efficiency is 85 a For the ideal engine calculate the thermal efficiency and MEP For the actual engine calculate b the brake power in kW and the brake thermal efficiency c the indicated thermal efficiency and the indicated heat rate d the approximate enthalpy of the exhaust steam at 0 03 MPa assuming that the heat loss from the engine is 23 kJ per kg of steam