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December 2013          
Happy Holidays  
'Twas the night before Christmas when all through the labs, not a creature was stirring but the Aircuity systems were still keeping tabs. The fume hoods were closed, the air change rates turned down in hopes that Gordon Sharp would soon be around.
 
The mice were nestled all snug in their beds, while visions of their friend the head vet danced in their heads. And the researcher who worked late and EH&S who had recently made their last lap were just settling down at home for a long winter break nap.
 
When from the lab bench next door there arose such a clatter,
 The mice in the vivarium ran around in their cages not sure what was the matter.
 Down the hall the security guard flew like a flash he checked in the chemistry lab, examined the sash.
 
The moon on the breast of the new-fallen snow
Gave the luster of mid-day to objects out the window down below.
When, what to his wondering eyes should appear,
But a miniature sleigh, and eight tiny reindeer.
 
Gordon was chubby and plump, a right jolly old elf,
The security guard laughed when he saw him, in spite of himself! A wink of his eye and a twist of his head, soon the mice settled back down in each of their beds.
 
With the hustle and scuffle the particle count in the vivarium had been elevated ever so slightly, so the air change rates were automatically turned up to accommodate for this rightly.
 
Gordon spoke not a word, but went to the guard's office and then straight to his work,
Filling the stocking, then he turned with a jerk.
And back into the chemistry lab laying his finger aside of his nose,
And giving a nod, up through the lab's snorkel he rose!

He sprang to his sleigh, to his team gave a whistle,
And away they all flew like the down of a thistle.
But the guard heard him exclaim, as he drove out of sight, "Happy holidays to all, and by the way that lab building is reducing its energy right!"
 

Aircuity Events

Stay tuned for the full 2014 tradeshow & conference schedule coming soon!
 

i2sl_widget_dec2013 


Engineering Meets Art

Gordon Sharp's First Patented Invention on Display in MIT Museum 

Copy of Gordon and Observers 2  

Aircuity Founder and Chairman, Gordon Sharp, was honored by having his first patented invention put on display at the MIT Museum. Gordon Sharp’s piece, called Cascade Light, is part of a year-long exhibit on kinetic art called 5000 Moving Parts.

Sharp first designed and invented Cascade Light for a Visual Design class when he was a student at Massachusetts Institute of Technology’s (MIT) School of Architecture. It is based on research that he observed in an MIT lab, using lightweight particles suspended in a rapidly moving stream of gas to clean smoke from industrial emissions. The unit on display in the museum is one of 1000 that were built to be sold commercially after patenting his invention over 30 years ago. His piece will be among the work of four professional artists while on display. The exhibition, 5000 Moving Parts, looks at the wide range of kinetic art, from work that's concerned entirely with motion and unpredictability, to sculptures that engage with contemporary political topics, to work that brings ancient myth into contemporary life.

Gordon Sharp holds two degrees in Electrical Engineering from MIT. Cascade Light was his first patent; he holds more than 25 patents to date.  

In the SPOTLIGHT

Iowa Central Community College:
 DCV results in energy savings
 & accolades 
BHS 3 

Iowa Central Community College, located in Fort Dodge, Iowa, is focused on being a learning college of choice in the nine county area that it serves. The college strives to be a leader in sustainability and wants to ensure all new construction meets green building standards, including being energy efficient. When the Bioscience and Health Sciences Building was being construction at the college, the architecture and controls firms selected Aircuity to optomize the ventilation in the labs and save energy.

Aircuity was installed in 4 labs which were able to be operated at 4 air changes per hour compared to the previous campus standard of 10 ACH.  This resulted in an annual energy savings of approximately $30,000 and a simple payback period of 2.2 years!

Iowa Central Community College Case Study 
 

Aircuity Advisor™

Energy Managers:
How do you easily determine if your energy savings are where they should be?

Advisor analytics provide a quick means of determining if ventilation rates, and therefore energy savings, are where they should be, or if there are areas that might require some investigation.
 
The example below shows that the actual Supply Flow Reduction is significantly less than what is anticipated for the current month
. Supply flow reduction is the sum of the differences between the average supply flows before air change rate reductions were made, and the ACH targets where OptiNet is enabled.

 
December Advisor-1 3

(On the left, the Supply Flow Reduction dial shows the potential supply flow reduction is approximately 5,000 cfm, but the actual reduction for the current month is averaging approximately 390 cfm.  Meaning these spaces are “missing out” on up to 90% of their potential reduction (1).
This is reinforced by the Average Total Supply Flow bar chart on the right where the optimized targets are shown around 1,000 to 1,500 cfm for these 4 spaces, where the monthly average is running approximately 2-4 times that
(2).)

  
Knowing there is an issue is one thing, but understanding what is causing it is the key to recovering the potential savings.  In the analytics below, the magenta colored bars represent ventilation driven by thermal override.

December Advisor-2 (The analytic on the top left shows the magnitude of air used for thermal override in each space (3).
The analytic on the top right shows what percent of the time, month to date, that thermal demand has been driving the ventilation rates in each space
(4).
The bar graph along the bottom shows the impact of the thermal conditions on the air change rate relative to the targets
(5).)

 
This should prompt an investigation into the heat loads in these spaces, the performance of the temperature control loops and control elements to determine why the thermal demand is so much higher than expected.  A first step might be, with a couple of mouse clicks, to take a look at how these spaces performed in the previous, month, year, or the same period the previous year.  This may show if this is a normal occurrence, a subtle shift in performance, or a significant change at some point in recent history.
 
It is important to note that it is not often necessary to scrutinize the actual values displayed in these analytics, the magnitude, and the relative difference between spaces, or over time allow users to quickly see the areas that stand out or experienced significant changes.
 
These analytic tools can help you determine if you are achieving the amount energy savings expected and if there is an issue arises they can also help pinpoint the issue to help get savings back on track again.
 

 
 Owner Training Class
 
Aircuity's next Owner Training Class is scheduled to take place February 20th - 21st. This program is intended for facilities operations and maintenance technicians with a mechanical aptitude. Students who complete the course will gain the skills to perform basic trouble-shooting and maintenance of the OptiNet solution including sensor exchanges and replacement of critical components. For more information and to sign up please contact Shane Mattson, smattson@aircuity.com .  
 

 
Aircuity, Inc.
Contact Us
Aircuity Newsroom


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