Commissioning and testing has been a core component of the consulting
and design work developed at JDA Consulting Engineers since 1990. Our
firm’s experience suggests that VSD technology has become a panacea for
solving the complex design issues that relate to centrifugal pump
selection. As JDA’s team commissions large, complex mechanical plants,
we find more systems where the VSD is practically abandoned in place.
Rather than providing the precise control of flow and pressure or
reducing energy consumption and demand, the VSDs appear to be “stuck”
at a single speed.
Many engineers tend to avoid or delegate the nitty gritty of a ground source heat pump system, from soil moisture effects to building system (im) balance. It's time for designers to get in the loop. Learn more about Grounded In Reality in the December issue. Other topics in the December issue include health care HVAC, Boilders, check out the Back2Basics, and more.