free webinar

Keep cool and register for Critical Cooling & Controls!
On-site at AHR Expo, January 27th in Chicago! Limited to 150 attendees…

Articles by Timothy Coyle, P.E.

Size Matters: Trends In Standby Power Systems For Health Care Facilities

These days, designs are favoring higher total system capacities, larger generators at higher output voltages integrated into “campus-type” power distribution systems, and security. Review design approaches, lessons learned, and relevant codes.
Consolidation within the healthcare industry and the rise of regional medical centers has led to larger facilities, often spread over a large area in a campus environment.
Read More

Calculating Backup Power Supply Requirements

Different types of load, from uninterruptible power supplies to VFDs and beyond, make for different approaches to your specific backup power situation.
Read up to protect your facility’s equipment and its ability to perform in a pinch.
Read More

Current Affairs: Be in control of Code Requirements

In my experience, one of the trouble spots in project specifications is coordinating the control panels furnished with mechanical equipment with the standards that apply to the balance of electrical equipment on the project. Regardless of what you may include about NEMA enclosure types, short-circuit ratings, and other features, manufacturers tend to supply their standard control panel. The result is often an installation that cannot be verified to meet code or project requirements.
Read More

Current Affairs: A Better Meter Made

Microprocessor-based systems greatly increased the power and flexibility of BMS while lowering the cost of sophisticated control. A similar evolu-tion in electrical metering and protection devices has increased the amount of power system information available to building operators.
Read More

Current Affairs: Don't Get Behind On The Code!

The new NEC changes are in.
Read More

Torque Is The Key

For motors in certain applications, the boilerplate approach to specification and design will get the system stopped because the motor won't start. Consider voltage, speed, and torque for these special instances, and follow along with the Case Of The Not-So-Centrifugal Pump Curve and the Case Of The Frequent Motor Failure to do some real-life motor- starting sleuthing. By Tim Coyle, P.E.
Read More

Current Affairs: Mea Culpa

And in electrical equipment rooms: to sprinkler or not to sprinkler?
Read More

Current Affairs: Keep In The Clear!

The NEC insistence on a wide berth isn't just a power trip.
Read More

Current Affairs: Ground Rules

Don't ground in isolation.
Read More

Current Affairs: Lightning And Surge Protection

How does the Faraday cage help buildings shrug off a bolt from above?
Read More

Multimedia

Videos

Image Galleries

ES Gallery: Snapshots & Systems

Check out highlights from projects featured in our magazine this year!

Engineered Systems Magazine

image

2014 December

Check out the December 2014 issue of Engineered Systems.
Table Of Contents Subscribe

System Design

Based on your experience and knowledge level, are you currently comfortable designing or maintaining a system incorporating VRF or radiant ceiling panels?
View Results Poll Archive

THE ENGINEERED SYSTEMS STORE

The_Green_Energy_Management
The Green Energy Management Book

Learn from our experts how to evaluate job opportunities, market your services, sell a Walk-through Survey, target areas for an Energy Audit, calculate energy savings, do retrofit work, and win continuing contracts for retrofit work.

More Products

Clear Seas Research

Clear Seas Research ImageWith access to over one million professionals and more than 60 industry-specific publications,Clear Seas Research offers relevant insights from those who know your industry best. Let us customize a market research solution that exceeds your marketing goals.

Tomorrow's Environment Podcast

This series from longtime columnist and chronic forward-thinker Howard McKew covers a lot of ground -- from retrocommissioning to systems training, on toward checklists for drawings and tips for meeting minutes. Click HERE to be taken to the podcast page!

STAY CONNECTED

new Facebook icon Twitter icon YouTube iconLinkedIn icon  Google+