"Mission critical" is defined as "an activity, device, service or system whose failure or disruption in normal business hours will result in the failure of business operations." When mission critical equipment is down, the bottom line of a business is severely impacted. In some applications, such as hospitals or other critical care facilities, there are even lives at stake.
Note: Schwank will offer a webinar for PDH credit on April 15, 2018 for engineers interested in learning more about infrared heating and air curtain design in these applications. The registration link is at the bottom of this blog.
Air and dirt are big-time attackers of closed-loop HVAC systems. Heating and cooling your system water can be more difficult with air and dirt causing problems and impeding the flow. Figuring out that your system is contaminated isn't too difficult, especially considering that few (if any) are 100% closed. One indication of a problem is noise in your pipes, terminal units and other equipment. Inadequate flow can cause problems like cavitation. You may hear moans, hammering sounds or even a high-pitch resonance. Increased operating costs could become problematic with a reduced ability to transfer energy. Systems with air and dirt contamination face corrosion and flow restriction and blockage. That's a problem.
In the U.S. in the 1970s, neighborhoods and highways looked much different than they do today. It wasn’t unusual to see people in the car in front of you chuck bottles and full bags of road-trip trash out of their windows. Highways were littered with the remnants of lunches and snacks from passengers who didn’t think twice about trying to find an actual trash receptacle.
Design engineers work hard to design comfort systems that serve the goals of the building and, ultimately, achieve that ever-elusive dream of perfect comfort for building occupants. But after all the meetings are over and the bids are submitted, design is sometimes sacrificed for initial equipment costs. Or, a design is scrapped altogether because the building owner is frightened of initial costs. However, according to a recent article written by AEGIS, the lifetime cost breakdown of ownership of something as simple as an electric motor is boiled down to this:
You can purchase the best pump in all the world for your commercial HVAC system but, if it is installed improperly, it will mean additional costs in replacement parts, labor expenses and equipment down time. If you want to keep commercial pumps running for the long haul, you need to insure that best practices are followed, starting with the initial installation.
Our manufacturing partners are smart. That is, after all, one of the many reasons why we partner with them! Griswold Controls has compiled a huge list of very readable application tips that we think you might enjoy reading. Granted, they may not be as enjoyable as the latest book club selection, but these tips could be applicable to a current project or two of yours.
System design is a critical element of system efficiency. The hydronic heating system must be designed correctly to take full advantage of a high efficiency high turndown boiler. It makes sense that a high efficiency boiler will never perform at a high level in a system designed for an atmospheric boiler. The physics is just against performance.
Schwank is offering a PDH webinar next week for design engineers. The webinar covers how the new Schwank air curtains can save energy by keeping conditioned air in buildings when doors open.