In HVAC, you will hear the word “flux” used in two totally different parts of the trade. You may have heard of magnetic flux before. Magnetic flux is the lines of force that emanate from a magnet. You often hear about magnetic flux lines in discussions of motor theory. Transformers also use electromagnetic flux to […]

Fundamentally, three-phase, alternating current motors are about as simple as a motor gets. The power company produces three phases by spinning magnets. Then, on the other end, we produce electromagnets that spin the motor according to the same 60 cycles per second frequency (60hz). All three phases are 120 degrees out of phase from one […]

This is a business article I wrote several years ago. No hard-hitting tech tips, but I still hope you find it beneficial. “What would you do if you had a time machine.?” It’s a question that came up at least 17 times in your first week of 6th grade, answered with the typical “kill Hitler” […]