Commercial HVAC

RSS

I recently commissioned a project that involved replacing eighty 2-pipe, dual-temperature fan-coil units in a nearly 40-year-old high-rise condominium.

Years after an HVAC engineer starts to design closed-loop water systems and then progressively moves up the ladder of engineering success, he can forget and/or overlook many of the issues, concerns, details, opportunities, etc. associated with engineering these systems.

While in Las Vegas at the ASHRAE conference and AHR Expo, I visited the colossal Hoover Dam built over a remarkably short time of five years (1931 to 1936).

Each year, the AHR Expo honors HVACR manufacturers with its Innovation Awards.

A funny thing happened on the way to the “Should ASHRAE Pursue A Net-Zero Standard?”  forum sponsored by ASHRAE TC 2.8 – Building Environmental Impacts & Sustainability.

Famous mathematician Edward Lorenz coined the phrase “The Butterfly Effect,” which is the belief that some small occurrence could create devastating results in another location far away.

Ambient air is the primary heat rejection medium for the condenser coils of air-cooled chillers and dry coolers.

I’d like to continue my exploration of the present/future BAS challenges by addressing…

In many buildings, there are isolated spaces with a continuous cooling load even when the buildings are unoccupied.

With last month’s publication, Engineered Systems magazine and I completed the 25th year of publishing this column.