Newsline / Ventilation / Duct Products

Project Files: Experimenting with Diffusers

LabSox textile diffusersCompany: Superior Laboratory Services Inc. (Pasadena, Texas)

Customer: An undisclosed Corpus Christi, Texas, chemical processing laboratory

Installation: LabSox® textile diffusers manufactured by DuctSox Corp., Peosta, Iowa; air-balancing blowers by Central Blower Co., Industry, Calif.; and 80-fpm draft hoods by Labconco, Kansas City, Mo.

Completion: 2012

Objective: Install textile air diffusers and new fume hoods to solve the laboratory’s cross-draft, high-velocity ventilation challenges, which included temperature and relative humidity swings of 10°F and 30 percent, relatively, in its laboratory area.

Work Completed: For each supply-air diffuser and hood replacement’s correct sizing and output, Rick Meyer, president of Superior Laboratory Services Inc., calculated the lab area’s total cfm, replacement fume-hood velocities, supply air cfm, number of supply outlets, distance between diffusers and hoods, ceiling height, and other factors helping maintain the negative pressure required in lab ventilation. Instead of a drop-in 2-by-2-foot textile replacement, Meyer chose a 2-by-4-foot model with an aluminum face frame that installed easily to the lab’s suspended T-Bar ceiling configuration. Instead of the open-louvered, 100 fpm (or more) design of 2-by-4-foot metal diffusers, the supply air now flows through the textile facing at a rate near 30 fpm. The larger size increased the textile surface area to ensure a gentle flow that minimizes cross drafts and scale and balances, skewing high-airflow velocities. Meyer also chose the MetalPan model allowing a flexible metal-to-flex connection adaptor from the HVAC supply to accommodate the lab’s tight ceiling clearances.

Quote: “The LabSox textile diffusers’ anti-microbial treatment and the fact they act as a secondary air filter is also advantageous because it minimizes microbial and particulate contamination that can affect lab tests.” -- Rick Meyer, president, Superior Laboratory Services Inc.

Publication date: 5/6/2013 

Want more HVAC industry news and information? Join The NEWS on Facebook, Twitter, and LinkedIn today!

Did you enjoy this article? Click here to subscribe to The NEWS Magazine

You must login or register in order to post a comment.

Multimedia

Videos

Image Galleries

2014 Energy Efficiency Forum

Highlights from the 25th annual Energy Efficiency Forum in Washington, D.C.

Podcasts

NEWSMakers: Jeremy Begley

Jeremy Begley, home-performance specialist and Web and social media manager with National Heating and Air Conditioning Co. in Cincinnati discusses how and why you should add home-performance philosophies to your contracting repertoire. Posted on Sept. 12.

More Podcasts

ACHRNEWS

NEWS 09-15-14 cover

2014 September 15

Check out the weekly edition of The NEWS today!

Table Of Contents Subscribe

Venting R-22

The NEWS reported that a man received prison time for venting R-22. Should EPA step up enforcement?
View Results Poll Archive

HVACR INDUSTRY STORE

plumbing-hvac.gif
2014 National Plumbing & HVAC Estimator

Every plumbing and HVAC estimator can use the cost estimates in this practical manual!

More Products

Clear Seas Research

 

Clear Seas ResearchWith 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.

DON'T MISS A THING

Magazine image
 
Register today for complete access to ACHRNews.com. Get full access to the latest features, Extra Edition, and more.

STAY CONNECTED

facebook icontwitter iconyoutube iconLinkedIn i con