Residential and Industrial Applications Chapter 16 Residential and Industrial Applications Significant in energy conservation; productivity Copyright © 2003 by John Wiley & Sons, Inc. Chapter 16 Residential and Industrial Applications

Improving Energy Efficiency of Heat Pumps Used in one out of three new homes in the U.S. Copyright © 2003 by John Wiley & Sons, Inc. Chapter 16 Residential and Industrial Applications

Loss Associated with ON/OFF Cycling The system efficiency is improved by ~30 percent Copyright © 2003 by John Wiley & Sons, Inc. Chapter 16 Residential and Industrial Applications

Inductive Ballast of Fluorescent Lamps Inductor is needed to limit current Copyright © 2003 by John Wiley & Sons, Inc. Chapter 16 Residential and Industrial Applications

Rapid-Start Fluorescent Lamps Starting capacitor is needed Copyright © 2003 by John Wiley & Sons, Inc. Chapter 16 Residential and Industrial Applications

Electronic Ballast for Fluorescent Lamps Lamps operated at ~40 kHz Copyright © 2003 by John Wiley & Sons, Inc. Chapter 16 Residential and Industrial Applications

Induction Cooking Pan is heated directly by circulating currents – increases efficiency Copyright © 2003 by John Wiley & Sons, Inc. Chapter 16 Residential and Industrial Applications

Industrial Induction Heating Needs sinusoidal current at the desired frequency: two options Copyright © 2003 by John Wiley & Sons, Inc. Chapter 16 Residential and Industrial Applications

Welding Application Three options Copyright © 2003 by John Wiley & Sons, Inc. Chapter 16 Residential and Industrial Applications

Switch-Mode Welders Can be made much lighter weight Copyright © 2003 by John Wiley & Sons, Inc. Chapter 16 Residential and Industrial Applications

Integral Half-Cycle Controllers Used for heating Copyright © 2003 by John Wiley & Sons, Inc. Chapter 16 Residential and Industrial Applications