Boiler “short cycling” occurs when an oversized boiler quickly satisfies process or space heating demands, and then shuts down until heat is again required. This article points out the inefficiency of short cycling and provides suggested actions to maximize boiler efficiency.
Remember that automatic control systems are automatic in operation, but not self-repairing. Unless a building has a service contract with a reputable controls contractor to inspect and calibrate the HVAC control system every six months, it is very likely that the HVAC system is not providing maximum comfort.
In a workspace world driven by demands for anytime, anywhere information, wireless technologies are becoming dominant. A flexible wireless infrastructure that supports IT networks, security applications, HVAC, and more is emerging as a surefire way to increase the value of commercial office space.
While hackers and viruses often garner the most attention in the realm of computer threats, many contractors overlook the ways that physical damage can adversely impact their business. Computer hardware failure, power surges, and/or damage from flood or fire could destroy years of work orders, accounting records, and more.
Sometimes it is advantageous to use more than one fan in a system. The fans may be located in close proximity to each other, or separated by quite a distance such as a supply and exhaust fan. Most often there is some compelling reason to use more than one fan in a single system.
This article focuses on stand-alone data loggers
in conjunction with the logging capabilities of the BAS in the context of use
by a commissioning provider. It also provides tips on specific
procedures and techniques that will enable the efficient and effective use of
data loggers to analyze building performance.
Boilers equipped with condensing economizers can have an overall efficiency that exceeds 90 percent. A condensing economizer can increase overall heat recovery and steam system efficiency by up to 10 percent by reducing the flue gas temperature below its dew point, resulting in improved waste heat recovery.
The key to a successful waste heat recovery project is optimizing the use of the recovered energy. By installing a condensing economizer, companies can improve overall heat recovery and steam system efficiency by up to 10 percent.
At first, the call sounded like one we hear all the time - not enough heat in a room that had been added onto a house. The service guy told me the radiators were big enough, and that the house had an old gravity hot water system. He asked if I’d stop by to look at it.
Facility managers of the future will be astonished when they
discover that building systems were not always integrated into a
single enterprise-wide information technology network.
Yes, the “old days” of operating a building will be compared to writing letters
instead of text messaging. This future scenario is a lot closer than it seems.