www.ChattanoogaEngineersClub.org
New Location, Free Parking, Great Food, Great Programs
NEXT MEETING___________________________
Monday, Apr. 13, 2009 - Noon - DOUBLETREE HOTEL (
Dr. Kazemersky, Professor of Engineering at UTC will
introduce 5 UTC Engineering students. Those students will present overviews of
their Capstone Design Projects: (1) Design of an
FUTURE MEETINGS________________________
Monday, Apr. 20 - Noon –
“New Technology that adsorbs heavy metal contaminates from our water and
air” – David Vernetti will review methods of removing heavy metal
contamination in our water and air. In some cases, the contamination has
existed for a long time, but most of us are unaware of the problem. Steward
Advanced Materials, in
Speaker: David Vernetti,
General Manager, Steward Advanced Materials
Meeting Place:
DOUBLETREE HOTEL
Monday, Apr. 27 - Noon – Jim
Frierson, great-grandson of John Kruesi, will present the Kruesi Legacy and an
inside story of Thomas Edison's laboratory and Edison’s early days of
invention at
Frierson will lead the
club members through the exciting days of Thomas Edison’s inventive life
and discuss details of
Speaker: Jim Frierson,
ATTI
Meeting Place:
DOUBLETREE HOTEL
PREVIOUS MEETING_______________________
Matt Williams, Professional
Engineer, Campbell & Associates, reviewed the reasons that a building
designer selects a geo-thermal HVAC system.
Geo-thermal systems use constant
ground temperature of 60ºF as a heat sink instead of 0-90ºF air. An EER up to
28-30 is possible.
Good geo-thermal design
requires 1 well for 1.5-2 ton load. Well depths are typically 300 ft. Hard rock
is more conductive and preferred over sandy or softer rock formations. Oversized
well piping is used to reduce head and pump load.
Matt suggested the premium
cost for the geo-thermal 250,000 ft.² system for
Hybrid geo-thermal
systems are sized for the heating load and are selected to reduce the initial
capital cost. Open loop geo-thermal systems utilize flowing well water to
provide the heat sink.
T5 light fixtures,
occupancy sensors, and light controls are energy savings devices. Proper roof
and window design are factors in reducing energy loads.
In summary, Matt stated
that operating power cost for a geo-thermal system is 6 cents / ft² / month. This energy
efficient utility cost is about 50% less than the cost of a standard HVAC
system.
ITEMS OF INTEREST_______________________
The Chattanooga
Engineer's Club has relocated its meeting place to the DOUBLETREE HOTEL,
Looking for details on a
local society meeting? Links to local engineering societies are available to
you at: http://www.chattanoogaengineersclub.org/engineer.
APRIL
SHOWCASE PICNIC – Presented by UTC Engineering and Computer Science
ATTENTION ALL STUDENTS
AND PROFESSIONAL ENGINEERING ORGANIZATIONS: Come join us on Reading Day (April
21) to see the
Student admission is free. Professionals will be asked to provide a
minimal donation (requested $10 per person).
QUESTIONS and SUGGESTIONS______________
If you have any
questions, items of interest to the Chattanooga Engineers Club, or suggestions
for 2009 programs, please contact Joe Robbins by e-mail at jrobbins@robbinsbohr.com or by phone at 423-756-4430. You can
find membership application forms, references to future programs, historical
data, and other info at: http://www.ChattanoogaEngineersClub.org. To receive future meeting announcements by email, join
the Chattanooga Technology Organization mailing list at: http://www.ChattanoogaEngineersClub.org/email