Bluegrass Chapter of ASHRAE October 2011 Newsletter

President’s Letter 

by Kevin Davies, 2011-12 Chapter President

Welcome to the 2nd edition of the online newsletter for the Bluegrass Chapter!  We feel like this is a great format in lieu of the previous method of sending out .pdf files.  Please offer any comments on this format, or on the newly re-designed web page!

As we head into the Fall (economizer) season, we have a very exciting program for you this month on CO2 monitoring and outside air control!  Please see the adjacent program announcement for details provided by Carrie Kelty, or Programs Chair and Vice President.  With the great feedback we received from last month’s program, we are staying at the Campbell house again this month.  Based on the feedback we received from our audience, the food was excellent last month, and having table service was well worth a few extra dollars.

Just a reminder, not only can you pay at the door $15 for members, $20 for non-members, and $5 for students, but we are also offering a Meal Plan to our members for the remaining programs for $80.  With 6 meetings remaining, this is still a savings of $10, if you plan to attend every meeting.

With October already upon us, we are beginning the planning for our joint Christmas party with ASME.  More details on the date and time will be forthcoming in the November newsletter.  Bluegrass ASHRAE is responsible for organizing the entertainment for the evening.  In the past we’ve had bell ringers, a magician, and other musical groups as the entertainment.  If you know of someone who could provide 2-3 hrs. of entertainment for a group of 30-40, we’d love to get your ideas and input.  Please e-mail me @ kdavies@trane.com

As always, thank you for the support of your local Bluegrass Chapter.  If you have any general questions, comments, or concerns as we move forward this year, do not hesitate to call me directly at 859-225-2081, or e-mail me at the above mentioned address.

-Kevin Davies, Chapter President

ASHRAE October Meeting

Friday, October 21st

“Insuring Energy Efficient AND Healthy Buildings – Effective Control of Outside Air”


We will meet at the Campbell House for a hot lunch and presentation, beginning at 12:00.  The cost will be $15 per member, $20 per non-member, and $5 for students.  The session will cover many topics including:

Presented by:  Pete Hmelyar, Regional Vice President, System SalesAircuity Inc.

Peter Hmelyar is the Regional Vice President, System Sales for Aircuity Inc. and joined the company in November 2000. He is responsible for all the sales activities for the Aircuity OptiNet System for the Central Region of the US and Canada. Aircuity is headquartered in Newton, MA and Peter is based in Wheaton, IL.

      Peter has over 30 years of sales management experience in the building and laboratory controls businesses.  Mr. Hmelyar spent 10 years at Phoenix Controls in various positions of sales management including their VP of Global Sales with responsibility for all of their sales activities. During this time and before at Solidyne and Margaux Systems where he held VP of Sales, and VP of Sales and Marketing positions respectively, Mr. Hmelyar achieved great success working through independent distribution channels to provide building controls solutions to their customers. He holds a BSME from the University of Akron.

Please RSVP on our Meeting Detail Page.

The Campbell House is located on the corner of S. Broadway and Mason Headley Rd. See map below:

Award Presented to Grant Page

At the September program meeting held at the Campbell House, Grant Page was presented with a certificate, presidential pin, and a personalized bottle of Woodford Reserve for his two year presidential term and CRC chair.  Please join us in extending a big thank you to Grant for his dedication and service to the Bluegrass Chapter.

- Brian Hafendorfer, Historian


Univeristy of Kentucky to Teach and Perform Energy Audits

UK is getting involved in setting up  an Industrial Assessment Center where they teach and perform energy audits. For more info, folks can go to this web site.   http://www1.eere.energy.gov/industry/index.html  just click on your state to find who is doing audits and where.



West Virginia to Host Building Seminar in November

Attention Mountianeer Members!

WV is having a building seminar in Nov. Here is the url for more information.  www.energyefficientbuildingconference.org



Technical Committee Update

Technical committees are an important part of ASHRAE.  The technical expertise of ASHRAE is concentrated in its Technical Committees (TCs), Task Groups (TGs), and Technical Resource Groups (TRGs). These groups are responsible for:

ASHRAE TCs consist of people who have a recognized proficiency in a specific field of interest. TGs, similar to TCs, are formed when a subject of current interest is not covered in the scope of an existing TC or when the subject encompasses the scope of more than one TC. TRGs are similar to TCs except that their responsibilities are limited to preparing, reviewing, or revising technical material. They do not have responsibility for programs, research, or standards.

Over the past several years I have been involved in ASHRAE TC 2.9, Ultraviolet Air and Surface Treatment.  The committee involves participants from all parts of the HVAC industry including HVAC manufacturers, suppliers, end users, and academic researchers.

Even though TC 2.9 was only formed in 2006, young compared to many other TC's, it is an active committee.  Since formed the committee has hosted several technical sessions, written three ASHRAE handbook chapters, sponsored a major research project, assisted in UVC related additions to UL1995, and is the process of publishing two standard methods of test.

One of the two testing standards the committee is currently working on is SPC 185.1 -- Rating Standard for UVC Light Systems is in it's public review period.  If the testing standard is of interest to you, we invite you to review and comment at https://osr.ashrae.org/default.aspx.

You can get more information about Technical Committees in general at http://www.ashrae.org/technology/page/104 or about TC 2.9 in particular at http://tc29.ashraetcs.org/.

 - Bob Coleman

Official Announcements from ASHRAE Headquarter



Alternative to ASHRAE Standard 62.1 Ventilation Rate Procedure Proposed

ATLANTA – Public comment is being sought on the proposed allowance of an additional default value to the ventilation rate procedure in ASHRAE’s indoor air quality standard.

ANSI/ASHRAE Standard 62.1-2010, Ventilation for Acceptable Indoor Air Quality, sets minimum ventilation rates and other requirements for commercial and institutional buildings.  The ventilation rate procedure provides a prescriptive method for determining minimum ventilation requirements. It accounts for pollutant sources from both the building and its occupants, and allows the designer to account for the efficiency of different ventilation systems when delivering outdoor air to the breathing zone.

Some users of Standard 62.1 believe that the ventilation rate procedure is “too complicated,” according to Standard 62.1 chair Roger Hedrick. “While the 62.1 committee disagrees with this in most cases – the basics of the VRP are quite straightforward – the committee agrees that application of the multiple-zone recirculating system equations described in Section 6.2.5 and Appendix A can be complex.”

Proposed addendum f, open for public review until Oct. 16, provides an additional default value for Vpz. 

"Difficulty determining an appropriate value for Vpz seems to be a frequent issue with users of the multiple space equations,” he said. “The committee decided that supplying a default value would simplify application.  However, the default value is necessarily conservative.  In a large number of applications, determining the 'lowest zone primary airflow value expected at the design condition analyzed' will result in a value for Vpz that is higher than the default, resulting in a reduced outdoor air intake requirement."      

Addendum f is open for public review until Oct. 16, 2011, along with proposed addendum h. Also, proposed addendum g to the standard is open for public review until Oct. 31, 2011. For more information, visit www.ashrae.org/publicreviews. The other addenda open for public review are:

•     addendum h (until Oct. 16). Table 6.1 in the standard includes ventilation rates for “Sports arena (play area)” and “Gym, stadium (play area).”  Both space types have ventilation rates based on floor area only, with a per person rate of zero.  Users of the standard have expressed interest in applying demand controlled ventilation to these space types, which is effectively prohibited by the lack of a per person component to the ventilation rate.  This proposed addendum replaces both of these space types with “Gym, Sports Arena (play area),” with Rp = 20 cfm/person and Ra = 0.06 cfm/ft².  In most cases, the overall ventilation rate for these spaces is expected to decrease, possibly significantly, according to Hedrick.

One concern about allowing CO2-based demand controlled ventilation in these spaces is that the volume per person in these spaces is typically large, which means that CO2 concentration changes will have longer than usual lag times behind occupancy changes, he noted. 

•     Addendum g (open until Oct. 31).  Currently users are directed that for space types that are not listed in Table 6-1 they should select the space type from the table that is most similar to the space being designed.  However, some space types are actually ventilated using the exhaust ventilation requirements of Section 6.5 and Table 6-4.  This proposed addendum adds language directing the user to select the space type that is most similar to the space in question from either Table 6-1 or 6-4, and to design the ventilation for the space according to the Section 6.2 or 6.5, as appropriate

ASHRAE, founded in 1894, is an international organization of some 50,000 persons. ASHRAE fulfills its mission of advancing heating, ventilating, air conditioning and refrigerating to serve humanity and promote a sustainable world through research, standards writing, publishing and continuing education.



ASHRAE is Supporting Sponsor of Solar Decathlon 2011

ATLANTA—ASHRAE is proud to once again shine a light on the key role solar energy will play in the development of net-zero energy buildings as a supporting sponsor of the Solar Decathlon 2011.

The Decathlon—sponsored by the Department of Energy and held on the National Mall from Sept. 23-Oct. 2—is a competition in which 20 teams of college and university students compete to design, build and operate the most attractive, effective and energy-efficient solar-powered house.

“The students participating in the Solar Decathlon are the future leaders of the building industry,” Ron Jarnagin, ASHRAE president, said. “ASHRAE is eager to support these young leaders in their goal of finding the best way to reach net-zero. We can learn a lot from their innovation, enthusiasm and dedication.”

As part of its role as a supporting sponsor ASHRAE will host two workshops, one focusing on recent updates on commercial and residential building design standards, held Friday, Set. 23, and one focusing on renewable energy options for homeowners, to be held Sunday, Sept. 25.

To provide the Solar Decathlon student teams with the best possible engineering resources as they plan their solar homes, ASHRAE has made available a variety of resources to the student teams such as HVAC Simplified and the ASHRAE GreenGuide, to name just a few.

Perhaps the greatest resource ASHRAE has to offer is its members’ expertise. Over a dozon ASHRAE members have been selected by DOE and the National Renewable Energy Lab to serve as Solar Decathlon Observers. ASHRAE Observers are assigned to observe two to four houses each to manage the 10 contests that make up the entire competition. ASHRAE Observers plan to dedicate several days to serve in this capacity.

“I believe that the Solar Decathlon is a unique opportunity for students to design, test, build, and see their buildings work,” Dru Crawley, an ASHRAE member and volunteer Observer, said. “This hands-on application of what they’re learning in a broad range of disciplines cannot be replicated any other way.” 

Additionally, ASHRAE has encouraged its members who live in the D.C. area to volunteer their time at the Solar Decathlon by helping to answer questions asked by the visiting public or assisting organizers with operating the competition. Whether available to volunteer for a few hours or multiple days, ASHRAE members’ volunteer contribution helps make the Solar Decathlon 2011 a success.

ASHRAE also offers students, who participate in several intense days of construction, a way to relax by co-sponsoring a student reception with USGBC and AIA on Sept. 24. The reception allows participants to meet and greet decathletes, organizers and sponsors, as well as enjoy great food and the chance to win raffle prizes.



ASHRAE Introduces New Liquid Cooled Datacom Environmental Classes

ATLANTA – A new whitepaper that serves as the first vendor neutral thermal guideline for liquid cooled data processing environments is available for free download from ASHRAE.

“2011 Thermal Guidelines for Liquid Cooled Data Processing Environments” creates data center classes for liquid cooling that can enable fulltime economizers for a number of applications in many climates, according to according to Don Beaty, chair of the Publications Subcommittee of ASHRAE’s Technical Committee (TC) 9.9, Mission Critical Facilities, Technology Spaces and Electronic Equipment.

“2011 Thermal Guidelines for Liquid Cooled Data Processing Environments” can be downloaded for free from the ASHRAE TC9.9 website at www.tc99.ashraetcs.org

The increasing heat density of modern electronics is stretching the ability of air to adequately cool the electronic components within servers as well as the data center facilities that house these servers.  To meet this challenge, the use of direct water or refrigerant cooling at the rack or board level is now being deployed. This trend of increasing heat densities combined with the interest in energy and waste heat recovery created the need for liquid cooling guidelines to help bridge the gap between IT equipment design and data center facility design, according to Beaty.

Five liquid cooling classes have been created:

•     W1 – Facility Water Supply Temperature of 2 to 17 C

•     W2 – Facility Water Supply Temperature of 2 to 27 C

•     W3 – Facility Water Supply Temperature of 2 to 32 C

•     W4 – Facility Water Supply Temperature of 2 to 45 C

•     W5 – Facility Water Supply Temperature of > 45 C

In addition to the classes, the whitepaper provides insight into other considerations for liquid cooling including condensation, operation, water flow rates, pressure, velocity and quality as well as information on interface connections and infrastructure heat rejection devices.

This whitepaper follows an earlier whitepaper released in May 2011, “2011 Thermal Guidelines for Data Processing Environments – Expanded Data Center Classes and Usage Guidance,” which addresses air cooling in data centers and created new data center environmental classes which expanded the opportunity for chiller-less data centers (fulltime economizers). 



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