Basic Principles and Calculations in Chemical Engineering

Chapter 14. The Mechanical Energy Balance

14.1 Ideal Reversible Processes

14.2 Efficiency

14.3 The Mechanical Energy Balance

Your objectives in studying this chapter are to be able to

1. Explain what a reversible process is

2. Identify a process as reversible or irreversible given a description of the process

3. Define efficiency and apply the concept to calculate the work for an irreversible process

4. Write down each of the terms in the steady-state mechanical energy balance for an open system, and understand the conditions under which the equation can be applied

5. Apply the mechanical energy balance when appropriate to problems so that you can predict pressure drops, velocities, friction losses, and pump sizes

The ideal process is a hypothetical ...