[Editor's note: This is part four of a five-part series.] Before you test any equipment at an existing installation, before you even perform a clean and check or other maintenance, you need to check ...

As HVACR technicians, assessing whether the furnace we’re servicing is working efficiently is critical to understanding the overall health of the HVAC system — and to the success of our service call.

TESTING EVERY FLAME-fired appliance you come into contact with is a move in the right direction. We discussed why you need to do this in last month’s column (“Do you test your gas appliances for CO?” ...

Under the necessary conditions of ignition and proper burn rates (cylinder pressure history), both these conditions can exist in virtually any engine. But, in particular, they certainly apply to race ...

In this segment of the Series, you're provided some considerations directed toward component selections that form the "foundation" of a high performance or racing engine. To round out an understanding ...

Wood-burning facilities have seen a spike in refractory problems due to operating units at higher temperatures and at increased capacities than in the past. Refractory professionals offer three ...

We had no idea that what’s needed to convert an internal combustion engine to steam power is actually rather trivial. [David Nash] shows us how it’s done by performing the alterations on the engine of ...

From a gearhead's viewpoint—take that back, anybody's informed perspective—there's one guy who stands out as a catalyst in the art of automotive as we know it. Not talking about the caveman who ...

Inlet unstart is a particularly critical issue associated with scramjets. That is the upstream displacement or disgorging of the original inlet shock system. Large flow spillage can be caused by the ...

Aside from a large camshaft, cubic inches, and lots of fuel, compression is the element that allows power to be formed. It’s the massive amount of squeeze being placed on the fuel and air, which in ...

One of the most frequent focuses of discussion between electric vehicle adopters and their critics is range. The usual argument is that fossil fuel vehicles can do 700 miles between refuels and take ...