This fall, warm weather is predicted across much of the eastern United States, while developing dryness and worsening drought conditions will grip the majority of the western United States, and frequent showers will result in cooler air in the Northwest....More
In 2009, researchers accidentally discovered a new color, a shade of blue they dubbed YInMn Blue. The new pigment absorbs UV and is resistant to high temperatures. As a roof coating, it offers the promise of a cool and attractive roof....More
Trane recently updated Trane 360°, a free downloadable mobile app for HVAC contractors and service professionals providing the latest information and literature about Trane parts and light-commercial unitary solutions....More
We all know the importance of comfort in schools and comfort’s relationship with student performance. While temperature gets the lion’s share of attention, equally important are noise, humidity, and ventilation....More
At Atlanta Symphony Hall, metal cooling towers on the roof were at the end of their useful life, filling the concert hall during performances with noise likened to the sound of a jet passing over the building....More
Hazelwood School District includes more than 30 buildings. The HVAC systems in most of those buildings were 15 to 25 years old, and maintenance costs were rising. Tom Mangogna and his engineering staff felt there had to be more efficient systems on the market....More
Fred, a mechanical engineer, and William, a civil engineer, had been friends for years and met weekly for lunch at their favorite restaurant. The waitress had barely finished taking their orders when Fred asked William: “Are you familiar with geothermal heat-pump systems? I have a twist I am looking at for a new project. Actually, it all started as a result of a fishing trip.”...More
Listed on the National Register of Historic Places, Memorial City Hall featured a wheezy steam boiler and no air conditioning—just gusty window and ceiling fans that seemingly blew only hot air (and papers), causing employees to swelter through hot summers, with temperatures topping 95°F in some offices....More
Revisions to the majority of chapters, including major updates related to thermal storage and district heating and cooling, are included in the newly published 2016 ASHRAE Handbook – HVAC Systems and Equipment....More
It is back to school for Johnny Tundra, who returns to Rosebud County Vo-Tech. A chiller keeps tripping offline on high head pressure. How can the chiller have any load on it when the temperature outside is 15°F? Lead designer Jerry Seltzer is ready to replace the chiller, fire the mechanical contractor, and sue the controller provider. Fortunately for everyone involved, Johnny has an advanced degree in troubleshooting.
Though not required until December, 2022, the new UL 60335-2-40 standard is currently active for matched and packaged air conditioners/heat pumps (no standalone systems), liquid chillers and hydronic fan coil units, hot water heat pumps, dehumidifiers and supplemental heaters (designed as part of an appliance package).
A data center or IT room uniquely alters the requirements of a building management system (BMS). This is primarily because of the criticality of IT and its dependence on facility infrastructure. IT’s reliance on power and cooling systems makes a BMS an important part of a larger data center infrastructure management (DCIM) solution that brings together Facilities and IT. The cooperation and information sharing better ensures uninterrupted and efficient operation....More
A lot of leading building automations systems (BAS) are touted as being open. But what does that really mean? And does being open mean that building owners and operators are getting the most out of their BAS investments?
During this webinar, Johnson Controls BAS experts will examine the definition of openness and advise on what to look for from a BAS provider when secure interoperability and ease of integration is paramount. Because a unified intelligent infrastructure provides better interoperability so businesses run more efficiently....More