Top 5 Consulting-Specifying Engineer articles, February 16-22: ASHRAE 90.1 and integrated design, VFD and motor strategies, lighting control strategies, more

Articles about ASHRAE 90.1 and integrated design, VFD and motor strategies for energy efficiency, lighting control strategies, driving data center design, and NFPA 72 and 720 code changes were Consulting-Specifying Engineer’s five most clicked articles from last week, February 16-22. Were you out last week? Miss something? You can catch up here.


Consulting-Specifying Engineer Top 5 most read articles online, for Feb. 16-22, covered ASHRAE 90.1 and integrated design, VFD and motor strategies for energy efficiency, lighting control strategies, driving data center design, and NFPA 72 and 720 code changes. Link to each article below.

1. How ASHRAE Standard 90.1 contributes to integrated design

ASHRAE Standard 90.1 is under continuous maintenance. This article focuses on the recent evolution of this standard, the impact on energy and performance, the design process, and how human interaction can improve energy efficiency. 

2. VFD, motor strategies for energy efficiency

A variable frequency drive (VFD) often is specified to reduce operational cost for pumps, fans, compressors, or any similar equipment with variable load profiles that may be found in a typical building. Here's how to specify a VFD to meet load conditions while achieving efficiency. 

3. Lighting controls: Best practices begins with a strategy

ASHRAE Standard 90.1 requires lighting professionals to include power allowances, daylighting controls, functional testing, and submittals in their lighting designs. This discussion includes an overview of lighting control options along with best practices for lighting designers and electrical engineers in working with their clients. 

4. Driving data center design

In the information age, data centers can be the beating heart of not just a building, but an entire global corporation. Engineers with experience working on data centers offer advice on their complex design and getting all the various aspects to compute. 

5. NFPA 72 and 720 code changes

Here's what fire protection engineers need to know about the NFPA 72 and 720 code requirements for sleeping rooms. 

The list was developed using CFE Media's web analytics for stories viewed on, February 16-22, for articles published within the last two months.

- Chris Vavra, production editor, CFE Media,

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