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Articles by Paul Ehrlich, P.E.

Building Automation

Making BAS Accessible — But Protected From Cyberattack

The Target hacking debacle is still under investigation, but there are lessons to be learned on protecting personal information.
April 1, 2014
Chances are you have heard about the data breach at Target that occurred late last year, in which customers’ information including credit card numbers were obtained through a cyberattack.
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Building Automation

Controls Optimization: No Longer Optional

Updated codes continue the push for better controls work as high performance edges further into the mainstream.
March 1, 2014
At one time, it might have been acceptable to view controls as a “necessary evil” with little attention given to the details of design including sequences and commissioning
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Hospital Retrofits For Energy Efficiency

How many health care facilities are limping along in terms of mechanical performance but could be running better than ever with one committed round of treatment?
March 1, 2014
Our BAS columnist makes a house call to prescribe one method of applying retrofit expertise, including the success story of a hospital with mysteries or maladies that required attention in VAV and chillers, air handling strategies, OR ventilation, and beyond.
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Building Automation

Chiller Plant Control

While chilled water plants can range in complexity, the fundamentals are the same.
February 1, 2014
Chilled water plants tend to be one of the most energy intensive areas of a commercial building.
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Building Automation

Controls Retrofits – Preserving Smoke Control

Follow these three steps when it comes time to upgrade critical life safety manage-ment.
January 2, 2014
Following a tragic fire in a Las Vegas hotel in the 1980’s, the industry recognized the dangers to occupants from smoke inhalation during a fire emergency.
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Building Automation

DDC Or Pneumatic?

Energy savings isn’t the only factor when considering a controls retrofit.
December 1, 2013
Much of our work involves energy studies and retrofits to commercial buildings.
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Building Automation

Building To Grid — AKA B2G

When it comes to the Smart Grid, are you prepared? Consider two design strategies to connect buildings to the available benefits.
November 1, 2013
You’ve heard a lot of talk about the deployment of the Smart Grid. Most of the initial smart grid deployments are focused on the de-ployment of smart meters that enable utilities to gather usage information in near real time — or what they call Automated Meter Infrastructure (AMI).
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Building Automation

Upgrading Aging Building Automation

Is it time for an update or a full replacement? Here are some factors to think about when evaluating mechanical systems.
September 23, 2013
Often when we are evaluating or assessing an existing building, we are on the lookout for equipment and systems that are in poor condition or approaching the end of life.
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Building Automation

Four Rules For Air-To-Air Energy Recovery Units

These units can save energy, but only if the technology is installed and operated correctly.
August 29, 2013
The application of energy recovery units allows for the ability to do total heat recovery and recover both sensible and latent heat from an exhaust air stream, using that heat to pre-condition outdoor air required for building ventilation.
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Big Buildings Meet Big Data

As always, the challenge is not a shortage of data but managing it smartly. However, the technologies and tools are evolving to meet the task.
August 2, 2013
Recently there has been a lot in the press about “big data.”
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ES Gallery: Snapshots & Systems

Check out highlights from projects featured in our magazine this year!
3/27/14 11:00 am EST

How to Calculate Backup Power Supply Requirements for Your Facility

On-Demand This webinar reviews how to determine power requirements of facility loads; electrical characteristics and impact of different types of loads such as large motors and UPS systems on power supply sizing; acceptable power sources and other constraints applied by building codes; and how software tools can be used to simplify the process of calculating backup power requirements.  

THE MAGAZINE

Engineered Systems Magazine

ES April 2014 cover

2014 April

Check out the April 2014 issue of Engineered Systems, with features on backup power supply requirements, cyberattacks, and much more!

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Design Flaws

Following up on Howard McKew's April "Tomorrow's Environment" column: Have you ever thought twice about reporting problems with another firm's design? What did you do?
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THE ENGINEERED SYSTEMS STORE

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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.

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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!

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