Tutorial2024Proposed solution included

MEF 354 Thermodynamics Tutorial 2024

MEF 354: 21-exercise tutorial sheet on entropy analysis: isothermal/constant-pressure processes, entropy generation during heat transfer, R-134a tank cooling, steam turbine isentropic expansion, Carnot T-S diagram, liquid methane property-table entropy change, ideal-gas entropy, isentropic compression (air, helium), liquid vs vapor compression work, multi-stage compression work comparison, turbine/compressor/nozzle isentropic efficiency, and entropy generation in a wall, a throttling valve, a quenched block, a heat exchanger, and a condensing piston-cylinder process.

Open in Shoracy

Opens this paper in the app on your phone.

University of Buea

Faculty of Engineering and Technology - FET

Mechanical and Industrial Engineering - MEF

MEF3542024

Thermodynamics

Tutorial · Second Semester · Level 300

From this paper

A piston–cylinder device contains a liquid–vapor mixture of water at 300 K. During a constantpressure process, 750 kJ of heat is transferred to the water. As a result, part of the liquid in the cylinder vaporizes. Determine the entropy change of the water during this process.
A heat source at 800 K loses 2000 kJ of heat to a sink at (a) 500 K and (b) 750 K. Determine which heat transfer process is more irreversible.

Open in the app to read the full paper and its proposed solution.

View solution Open in Shoracy