Measuring air flow in an HVAC duct can be a tricky business. Paddle wheel and turbine flow meters introduce not only resistance but maintenance issue due to accumulated dust and debris. Being able to ...

When we hear the words “pitot tube,” we tend to think more of airplanes than of air ducts, but [Franci Kopač]’s guide to pitot tubes for makers shows that they can be a remarkably versatile tool for ...

SIAM Journal on Applied Mathematics, Vol. 64, No. 3 (Mar. - Apr., 2004), pp. 878-901 (24 pages) The quasi-one-dimensional Euler equations in a duct of variable cross section form probably one of the ...

Process and plant engineers responsible for continuous emissions monitoring systems (CEMS) who need a reliable solution to flow measurement problems in large ducts with hot dirty gases will find the ...

But what workers hate is not the air-conditioning itself. It’s the way that air-conditioning is distributed: through snaking overhead tunnels of metal ductwork and out the end of just a few vents ...

Effective HVAC filtration is at the heart of acceptable indoor air quality (IAQ). It helps keep indoor environments relatively free from the dust and particulates that may reduce productivity, affect ...