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UNIVERSIDADE FEDERAL DE SANTA CATARINA
DEPARTAMENTO DE ENGENHARIA CIVIL METODOLOGY TO CALCULATE THE POTENTIAL OF ENERGY GENERATION IN URBAN AREAS Autores: Isabel Tourinho Salamoni Paulo Knob Ricardo Ruther
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INTRODUCTION Brazil – problems in relation the energy questions.
Strategy : to increase the energy efficiency. Photovoltaic systems - causing minor environmental demage; - next to the point to consumption. Knowing the capacity that one photovoltaic plant has to generate energy: - generating source of energy; - increases the capacity condition of the local eletric net.
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AIM Potential of photovoltaic generation in urban areas;
Evaluating the relation between the generated energy and the consumption; Comparative analysis between the demand curve and the solar generated curve.
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METHODOLOGY Studied of two sectors of the city of Florianópolis – distinct characteristcs; Verifyed the annual energy consumptions of each sector – date supplied for the corresponding feeders.
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METODOLOGY – Stuidied Sectors
Table 1: Values of energy consumption Table 1: Values of energy consumption in the center feeder. METODOLOGY – Stuidied Sectors Table 1: Values of energy consumption FEEDER ICO 07 FEEDER INE 02 MONTH Ampère-hour/month MWh/month 2001 – may 88.708,00 2.120,32 70.529,00 1.685,80 2001 – june 73.677,00 1.761,04 51.218,00 1.224,22 2001 – julhy 86.099,00 2.057,96 (*) 122,00 2,91 2001 – august 44.922,00 1.073,73 (*) ,00 778,28 september 71.448,00 1.707,77 64.295,00 1.536,79 october 79.559,00 1.998,55 57.807,00 1.381,72 november 84.442,00 2.018,35 49.041,00 1.172,19 dezember ,00 2.538,95 83.329,00 1.991,75 2002 – january ,00 2.961,20 ,00 2.940,89 february ,00 2.626,36 ,00 2.429,33 2002 – march ,00 3.486,36 98.573,00 2.356,12 2002 – april ,00 2.820,73 76.448,00 1.827,28
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METODOLOGY – Studied Sectors
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METODOLOGY – Calculation of radiation and Photovoltaic generation
RADIASOL software – to calculate the amount of incident radiation solar radiation datebase of the city of Florianópolis available from LABSOLAR. The amount of Photovoltaic energy generated will be obtained as a function of the installed power, the efficiency of the inverter system and the incident radiation on the panel plane.
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METODOLOGY – Tilt and orientation
Quantifying the roof areas Calculated the amount of energy generated. First case Tilt = 0 degree. Global idea of the potential of photovoltaic generation. Second case – ideal conditions Tilt = local latitude = 27 degrees. Thirth case – real conditions samples
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METODOLOGY – Tilt and orientation
To verify if there is a large variation of energy generation between the observed cases. Significant variation real conditions.
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RESULTS
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RESULTS
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CONCLUSIONS Photovoltaic Systems a lot of benefits - environmental;
- to the utilities. The study was carried out with the use of photovoltaic panels based in thin films of amourphous silicon – less efficient tecnhology of the market.
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