Everyone is familiar with pinwheels, and few of us haven’t crafted one from a square of paper, a stick, and a pin. Pinwheels are pretty optimized from a design standpoint, and are so cheap and easy to ...

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 ...

Duct burners use supplementary firing to increase the heat energy of a gas turbine’s exhaust, making it possible to increase the output of a downstream heat-recovery steam generator (HRSG). Early ...

Inefficient ducts force HVAC systems to work harder, raising costs. Rising heating bills, despite normal usage, may signal leaks or poorly connected ductwork. Upgrading or repairing ducts helps ...

ARLINGTON, Va. - The Air Conditioning Contractors of America (ACCA) has posted the last in a five-month series of technical reference bulletins on its Web site. "Balancing Residential Air Distribution ...

Ductwork used to channel or direct air to spaces throughout a building can impact the efficiency of the structure’s HVAC system. That’s why it’s important to properly design and install ductwork and ...

The alchemy of burning any solid fuel-including coal-requires mixing fuel and air in just the right proportion at just the right time. Get the recipe wrong, and reduced efficiency and load rating will ...