solar panel pcm project[1] update may 26[1]
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8/2/2019 Solar Panel PCM Project[1] Update May 26[1]
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Hiraku KobayashiLihn NgyuenFarid Sarraf
Aaron Stafford
Faculty Advisor:Dr. Yam Lee
Chemical and Materials Engineering Dept.
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2REN
21
Renewables2010GlobalStatusReport(www.ren21.net)
Grid-connected solar photovoltaic (PV)
fastest growing power generation technology
Current solar panel technology, for residentialapplications are only about 15% efficient.
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Weather Conditions ,Geography & Panelplacement must be considered because of
temperature variation.
The campus celebrates the new Amonix 7700 at the Lyle Center. Polycentric. Sept 30
2010
AspenSolar.Teachengineering.(c)Jan5,
2011
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ISC increases slightly, while VOCdecreasesmore significantly
Solar cell Isc and Voc. Wikimedia. October 19 2008
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Solar cell I-V curve as a function of temperature. Wikimedia. October 19 2008
http://www.solarpower2day.net/images/9.png -
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Install a temperature-dependent chargecontroller or a maximum power tracker1
Apply cooling mechanism to back of PVarraysour project 1
Reference [1]:Min-Jung Wu, Erik J. Timpson, and Steve E. Watkins. Temperature Considerations in Solar Arrays.University of Missouri. Department of Electrical and Computer Engineering. 2004
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Active Cooling1-requires some external power source
e.g Fans, Cooling fluid via pump
Passive Cooling1-requires no added power
e.g Air flow, Phase Change Material
Reference [1]: Photovoltaic Efficiency. Teachengineering.org. Jan 5 2011
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Encapsulated PCM. Microtechlabs.(c) 2011
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Phase I: Compare Efficiencies of two PVPanels(Metal & Acrylic Backing) withvarying Temperature
Phase II: Investigate the effectiveness of
PCM to mitigate power loss due toincreased temperature.
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Compare the two panels efficiency without
PCM
The PV panels will be placed in a test cellunder fixed lighting.
Values to measure: Temperature, Current,Voltage, & Incident radiation
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Incident Light Results
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Temperature Plots
Metal Backed Panel
Acrylic Backed Panel
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Temperature Plots
Metal Backed Panel
Acrylic Backed Panel
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I-V Curve
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Power Curve
T (oC) P (mW)26.35 88028.9 86230.4 85831.66 85632.45 85233.2 83633.25 828
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Attach PCM filled container to the back of the
PV Panel
Develop Temperature and IV curves
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Acrylic Glass
PCM
AdiabaticBoundary
Adiabatic
Boundary
Adiabatic
Boundary
PV Panel
IT h
T
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Figure 1: Metal Backed Panel withPCM Container
Figure 2: Experimental test unit
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Temperature Plots
Front of Panel Back of Panel
PCM Ambient
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I-V Curve
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P-V curve
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625
630
635
640
645
650
655
660
665
670
675
24 26 28 30 32 34 36 38
Pmax
(mW)
T (oC)
Maximum Powers of Metal Backing PV Panel withPCM at Different Temperatures
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IV & Temperature curves display greaterefficiency for Acrylic backed panel
PCM tests are inconclusive- Tests show PCM has negligible effect
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Problem:Generating clearer IV-curves with
changing temperatures requires moreelaborate and expensive equipment.
Solution:Equipment now available throughEE department
Problem:Halogen lamp overheated and requiredfrequent replacement
Solution: Future teams should consider usinghalide lights alongside betterequipment.
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We would like to thank Dr. Yam Lee for hissupport and direction throughout thisproject. Additionally we would like to thank
Dr. Nelson and Dr. Anz for their advice.Finally we would like to thank JohnClothier for his donation of two PV Panels.
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1. Min-Jung Wu, Erik J. Timpson, and Steve E. Watkins.Temperature Considerations in Solar Arrays. University ofMissouri. Department of Electrical and Computer Engineering.2004
2. Photovoltaic Efficiency. Teachengineering.org. Jan 5 2011
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Questions?