A Tennessee district faced an old school HVAC challenge: aging ventilators and space constraints. So this team tried a new-school variation on common VRF retrofits to deliver improved efficiency and critical IAQ: they decentralized the outdoor air, combining enthalpy wheel and VRF components within a single classroom enclosure.
Warm discharge plumes sweeping back into air-cooled condensers is nobody’s idea of an ideal performance environment. This CFD study shows how wind speed, wind direction, spacing between chillers, and separation from adjacent buildings all factor into the conversation about the best defense against unwanted hot air.
As one of the largest commercial real estate firms in the southeastern United States, Childress Klein oversees and services nearly 40 million sq ft of office, industrial, retail and residential properties.
Trends don’t always follow the expected path (or timeline), but the basics remain the basics and increased cabinet density remains inevitable. Let’s revisit the progress of liquid in data center strategy and the tenets of a future-proof(ish) hybrid design for today.
Thanks to a recent remodeling, patrons seated indoors experience the ambience of dining outdoors at O’Toole’s Irish American Grill & Bar. However, there are no mosquitoes, flies, or vehicle emission odors, and the temperature is always a comfortable 74°F.
Why was one floor’s laboratory ventilation failing to keep up, when it was even the closest floor to the rooftop fans? Some system sleuthing led two engineers to a fitting conclusion. Read more stories in May Issue 2017.