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Vincent A. Sakraida, P.E.

Sakraida is a principal engineer with Sakraida & Associates, LLC (Denver, CO) which is a consulting and forensic engineering firm. He has 30 years experience in the design, construction, and operation of cleanroom, pharmaceutical, laboratory, and other high-technology facilities. He is a member of ASHRAE, ASHE, ISPE, and IEST. He can be reached at


Critical Facility Mechanical Equipment And System Reliability

Come to terms with the key terms, and learn how to wrestle with the cumulative effect as each component tries to edge the overall system reliability downward.
March 29, 2013
In today’s world, so-called “high-performance, sustainable” facilities are a dime a dozen. But many of these buildings rely on overly complex mechanical systems to carry out their mission.
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Cleanroom Variable Airflow Design

April 27, 2012
Appropriately enough, a good variable airflow design accommodates and refines a number of design variables. Particle monitoring strategies, minimum supply air calculation, HVAC sequencing, and space pressurization are just a few stops on the way to spotless performance.
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Basics For Absorption Chillers

March 1, 2009
If motor-driven vapor compression chillers are much more energy efficient than absorption chillers, then why are we even having this conversation? In a hunt for LEED® points or in applications with certain demands, absorption could be just the ticket to sustainability and/or economy.
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Basics For Refrigerant Chillers

December 1, 2008
That pretty much covers it. You know, design options, performance standards, part-load values, operating factors, and more. Use it as a quick brush-up, or pass it along as a handy reference.
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Cleanroom Design in 10 Easy Steps

March 31, 2008
OK, so “easy” may not be a word that comes to mind for designing such sensitive environments. However, that doesn’t mean you can’t produce a solid cleanroom design by tackling issues in a logical sequence. This article covers each key step, down to handy application-specific tips for adjusting load calculations, planning exfiltration paths, and angling for adequate mechanical room space relative to the cleanroom’s class.
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Manufacturing The Right Moisture

April 1, 2007
In addition to serving as a handy reference on the various dehumidification technologies and their profiles, this article uses a manufacturing scenario to explore load-related questions and other design pitfalls. Will human occupancy make much of a difference? What valves does your humidifier have? And exactly what’s in that room, anyway?  
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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.  


Engineered Systems Magazine

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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 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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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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