Thermal Energy Storage Tank - University of Utah · Thermal Energy Storage Tank Team: Jon Darley,...
Transcript of Thermal Energy Storage Tank - University of Utah · Thermal Energy Storage Tank Team: Jon Darley,...
Thermal Energy Storage TankTeam: Jon Darley, Jose Izurieta, Richard Peterson, Nicholas Reeder, and David Toth
BACKGROUND:‐ Thermal Energy Storage systems have many applications and use a wide variety of technologies.
‐ The most common type of TES systems are tanks that take in energy from various resources
such as; exhaust, solar, and water waste.
‐ Many TES tanks develop a stratified environment which allows for specific temperatures of the
internal fluid to be drawn off.
GOALS:‐ The primary goal of our project was to design and manufacture a TES system on a lab scale such
that it can be used and manipulated for various tests.
‐ In the long run, we hope the test done from this system can be used to study the efficiency of
full scale TES systems.
TEMPERATURE MEASUREMENT SYSTEM:‐ The temperature measurement system uses 12 k‐type thermocouples spaced at even intervals
down the center of the tank.
‐ Every 5 seconds a temperature reading was taken and the stratified layer was studied.
HEAT EXCHANGER COILS:‐ The coils used for the heat exchanger are a concentric design. The inside coil is 2 inches in
diameter and the outside coil is 4 inches in diameter.
‐ The pipe diameter is ¼ inch to provide significant Reynolds number to maximize heat transfer.
OTHER DESIGN FEATURES:‐ The insulation is one layer of R‐30 lined with reflective insulation foil.
‐ The bulkhead fittings are lined with silicone to make them water tight.
‐ The tank is c900 grade plastic.
‐ The caps are cast iron.
TESTING RESULTS:‐ The testing shows that our tank can create and measure a stratified layer within the
tank.
CONCLUSIONS:‐ Our group succeeded in building a TES tank with the appropriate features for creating,
testing and measuring the internal stratified environment.
SPECIAL THANKS TO:
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Heat Exchanger Turned Off at 1 hour
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Left:Internal top down view of the heat exchanger coils after installation.
Right:Exterior valve and bulkhead for heat exchanger.
Left:Bulkhead and fittings which connect the external valve to the heat exchanger coils.
Right:CAD model of bulkhead.
Full assembly of TES system. Hard at work!
Advisors: Dr. Amanda Smith Ph.Dand Aowabin Rahman