VAV boxes: Energy efficiency, air leakage, ASHRAE 90.1
This presentation discusses the results of ASHRAE RP-1292, which discovered the excessive amounts of leakage in typical parallel boxes, and changed the notion of them being more efficient than series boxes.
This presentation discusses the results of ASHRAE RP-1292, which discovered the excessive amounts of leakage in typical parallel boxes, and changed the notion of them being more efficient than series boxes. The significant differences between ECM and PSC motors will be discussed, showing the major energy advantages of the ECM and when those benefits are realized. Finally, the requirements of ASHRAE 90.1 regarding VAV boxes are discussed as well as the relationship between AHRI and ASHRAE to meet these requirements.
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Presenter: John Gierzak, PE, Vice President, Oriflow
Presentation provided by the National Environmental Balancing Bureau (NEBB).
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Annual Salary Survey
After almost a decade of uncertainty, the confidence of plant floor managers is soaring. Even with a number of challenges and while implementing new technologies, there is a renewed sense of optimism among plant managers about their business and their future.
The respondents to the 2014 Plant Engineering Salary Survey come from throughout the U.S. and serve a variety of industries, but they are uniform in their optimism about manufacturing. This year’s survey found 79% consider manufacturing a secure career. That’s up from 75% in 2013 and significantly higher than the 63% figure when Plant Engineering first started asking that question a decade ago.