In June, we reported on a U.S. Department of Energy proposal to tighten efficiency standards for commercial packaged boilers. Three months later, that rulemaking is still open. When it might be finished is difficult to say....More
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
“How does a company maintain its success from the tail end of the 19th century all the way to the 21st?” Contractor's Steve Spaulding asks in a profile of Weil-McLain. He says it boils down to five company values....More
There is a leak at the highest reaches of the Montana state government—the kind not associated with a loose-lipped staffer, but, rather, a safety relief valve on a 40-year-old boiler. The supervisor of facilities maintenance and operations, Hank Hoovestahl, wishes the environmental guys who decided to connect the steam boiler to a newer hydronic boiler would have talked to the O&M staff first. Luckily for Hank, he does not have to ask his pal Johnny Tundra twice for help.
Advertisements in 1943 encouraged Americans to join and support the war effort. Large machines, ships, and trucks were popular visuals; unification and work were common themes. Here is a selection of advertisements that appeared in HPAC Engineering in 1943....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
Has your organization retrofitted burners and controls on its boilers because of U.S. Environmental Protection Agency-mandated emission regulations and then experienced operational issues? The owner of a large manufacturing-and-assembly facility in the Midwest did, and while conducting an operational review there in mid-2014, I experienced firsthand the frustrations of the plant engineering staff....More
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