02 EE 474 Introduction to PV

02 EE 474 Introduction to PV - Introduction to...

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Click to edit Master subtitle style 2/24/11 Introduction to Photovoltaics Technology P. Daniel Dapkus EE / MASC VHE 310 dapkus@usc.edu
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2/24/11
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2/24/11
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2/24/11 Primary Energy Consumption in Buildings by End Use (1998) Source: BTS Core Databook, August 2000, Table 1.1.7 and Industrial Building Estimate from Table 1.3.11 Space Heating 9.4 Quads (25%) Refrigerati on 2.4 Quads (7%) Applianc es 5.0 Quads (14%) Water Heating 4.1 Quads (11%) Lighti ng 6.0 Quads (17%) Space Cooling 4.3 Quads (12%) Ventilati on 1.2 Quads (3%) Oth er 1.3 Quads (4%) Unallocat ed 2.6 Quads (7%) 36.3 Quads 1 QUAD~1015 BTU (a LOT of energy!)
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2/24/11 Lighting Energy Use for All Building Sectors by Technology Source: U.S. Market Characterization, Phase I - Inventory. Source data are RECS (92), CBECS (93), and MECS (94). Draft Report, ADL, May 2000. Incandescent Fluorescent 0.0 1.0 2.0 3.0 4.0 Residential Commercial Industrial Other High Intensity Discharge quads Total: 6.3 quads 10-20 lm/W 30-90 lm/W 40-70 lm/W LEDs 100-150 lm/W
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2/24/11 Light Emitting Diode Issues
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2/24/11 Solar Energy Technologies Solar Thermal Solar Heat Solar Concentrating Thermal Power Solar Heat Mechanical motion Electricity Solar Biomass Solar Biology / Chemical Heat Solar Fuels Solar Electrochemical energy Chemistry Fuels Solar Photovoltaics
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2/24/11 Characteristics of Solar PV + Clean – No on-site byproducts generated + “Infinite” Supply – Energy source unlimited + “Distributed” energy source + Scalable Technology - Dilute energy source – 1kW / m2 - Intermittent source - Not Cheap Useful Web Site for PV information: http://pvcdrom.pveducation.org/index.html
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2/24/11 Origins of Solar Energy Compression of solar mass by gravity. Thermonuclear reactions between atoms. Confinement by electromagnetic fields. Heat, light, energy of particle motion.
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2/24/11 Quantum Nature of Light Light is energy in the form of electromagnetic fields and is characterized by its frequency, ν , and wavelength, λ . The Photon is the quantum of electromagnetic
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02 EE 474 Introduction to PV - Introduction to...

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