With 68,615 attending the 2017 Show, AHR Expo superseded its former all-time attendance record of 61,674 (set at the 2015 Show in Chicago) by 11.2 percent. This number was also 28.7 percent greater than the overall attendance (totaling 53,324) at the last AHR Expo held in Las Vegas in 2011.
I know it must seem to appliance DESIGN readers that all I ever talk about in this column is refrigerants. And for the past couple of years, it is pretty much the truth. But the fact is, refrigerants are the most prominent, vital global issue faced by our industry and there is always plenty to say about it.
Members of the Hydraulic Institute, Armstrong Fluid Technology, Grundfos, Taco Inc., WILO USA and Xlyem Applied Water Systems participated on a 15 member Appliance Federal Rulemaking Advisory Committee (ASRAC) working group on circulator pumps.
BLDC motors use electronic instead of mechanical commutation to control the power distribution to the motor. Latching Hall-effect sensors, mounted in the motor, are used to measure the motor’s position, which is communicated to the electronic controller to spin the motor at the right time and right orientation.
Fans are used in a wide variety of commercial and industrial applications such as in commercial building HVAC systems, commercial kitchen exhaust systems, agricultural ventilation, and material handling.
Design engineers consider a number of factors when deciding which joining method is best suited to a particular application. Each has pros and cons, and this article will look at some of the reasons behind the choices for one over the other.