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.
In air conditioning systems or for the development of components, LiquiSonic® sensors are used to monitor the air conditioning circuit by measuring the oil concentration in the refrigerant. In the climate test facilities of the automotive supplier DENSO, the sensors are installed directly in the pipeline and continuously determine the oil content every second.
Advancements in materials and technologies have greatly improved the devices and appliances in our lives at such a rapid pace in the past decade that manufacturers have sometimes been challenged to incorporate these changes almost as quickly as they are invented.