In 1948, research by R.G. Huebscher established flow resistance for different shapes of ductwork at equal velocities, which allowed the creation of the duct-sizing calculator or “Ductulator” for ...

Airflow velocity in a residential HVAC market duct system is an important design consideration. Although designing for proper velocity applies to all ducted HVAC construction systems — heat pumps, air ...

So you think your air conditioner is pretty cool, right? What if we told you it is a low-velocity system? Suddenly, you might have an inferiority complex about your home's cooling system. A cool ...

A group of researchers led by the University of Exeter in the United Kingdom has conceived new design parameters for photovoltaic-thermal (PVT) air collectors by taking into account the effect of ...

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 ...

For years, original equipment manufacturers (OEMs) of heat-recovery steam generators (HRSGs) have supplied distribution grids (DGs) as a means for controlling the undesirable velocities, temperatures, ...