Heating cables are commonly referred to as heat trace cables, heat tracing, or heat tape, while the most advanced cable design, self-regulating heating cables, are also known as self-limiting cables. Whatever they are called, all work largely on the same principle: when voltage is applied across a length of wire of a given resistance, it then dissipates a fixed level of power in the form of radiating heat based on ohms law.
Industries in transition are often the biggest hotbeds for innovation and disruption. Take the automotive industry for example, which is currently undergoing an historic transformation driven by a slew of disruptive new forces from ride sharing to electric vehicles to autonomous driving, reflecting a cultural shift away from traditional car ownership and more towards crowdsourcing and sustainability.
Today we are at the starting line of the digitization of manufacturing. This digital, technological revolution that we are witnessing is often referred to as the fourth industrial revolution, with the integration of cyber physical systems, where parts, machines and systems communicate with each other, and can predict failure and autonomously trigger a process change or preventative/predictive maintenance.
The HVAC industry is highly regulated with stringent requirements set by countless government organizations. The number and frequency of regulations has been increasing—and the overwhelming number of changes are forcing manufacturers to make frequent updates to their product offerings to comply.
In recent years, designers and inventors alike have been keen to create their next part or product using metal 3D printing. With the latest advancements enabling a wider range of processes and materials that can be exploited with much greater speed and efficiency, metal 3D printing is all the rage.
Every now and then, I’m asked about the suitability of small DC motors for use as a generator. The fundamental statement is that motors with low power losses are equally efficient when operated as generators.
You’ve heard the news, you’ve jumped on the wagon, and now you’re enjoying the ride. A drive-controlled, permanent magnet AC (PMAC) motor is the new standard for the industry—no matter the industry. Whether you call it a variable-frequency drive (VFD), a variable-speed drive (VSD), an inverter, or an AC drive, you’ll need one, alongside the PMAC, in every application that comes your way.
While Taoist philosopher Lao Tsu was the first to make the statement, “Those who know do not speak. Those who speak do not know” part of his formal teachings, some form of the wisdom behind this statement has been attributed to such great philosophical minds as Socrates, Buddha, and Jesus.
The Association of Home Appliance Manufacturers’ (AHAM) October shipment numbers showed a decrease in overall Major Appliances, falling to 5,696.6, a 0.1% decrease from October 2017. The year-to-date number fell to 65,968.2, a decrease of 0.6% over last year.
This month the Air-Conditioning, Heating, and Refrigeration Institute (AHRI) will co-sponsor the AHR Expo, the world’s largest HVACR event. Each year, the show provides a unique forum where manufacturers of all sizes and specialties, whether a major industry brand or innovative startup, can come together to share ideas and showcase the future of HVACR technology under one roof.