page 23
Cover Story: 46th Annual Report on HVAC
Putting On the Heat
Lisa Bonnema, contributing editor

New standards and growth of alternative HVAC technologies are challenging engineers to balance efficiency, cost, and quality.

page 37
Supplier Solutions
2010 International AHR Exhibitor Highlights

page 28
Control Panels and Displays
Smart Interface
by Yaling Lee, managing editor

Appliance engineers are using sophisticated tools to design control panels in less time, even while enhancing functionality and durability.

page 30
Feature: Quality Testing & Certification
Certified Green

Third-party testing is becoming an important tool for keeping faith with consumers.

page 14
APPLIANCE Engineer - The Open Door
Taking Up the Sustainability Challenge
Tim McAloone, Technical University of Denmark

 It’s no surprise to anyone that environmental issues are becoming ever more prominent and important to understand in the world of appliance development and manufacture.

page 16
APPLIANCE Engineer - Testing & Certification
Fire Containment and Clothes Dryers
Trey Morrison, managing engineer, Thermal Sciences Practice, Exponent Inc.

 A revised fire safety standard for clothes dryers creates several design challenges for appliance engineers.

page 20
APPLIANCE Engineer - Motor Controls
Motor Control Doubled

 An MCU boasts improved operational efficiency and enough computational power to drive two motors.

page 21
APPLIANCE Engineer - Technology Report
Miniature Magnetic Sensing

 A 3.7-mm-long magnetic reed switch—engineered to be the world’s smallest—has a narrow sensitivity range and is suited for applications with space constraints or low magnetic fields.

page 22
APPLIANCE Engineer - Manufacturing Technology
Smart Leak Detection

A helium leak detector with modular design provides ease of use and high sensitivity for refrigeration and air-conditioning applications.