2 aitor marzo, bifi pv psda, antofagasta (chile) 2015
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Transcript of 2 aitor marzo, bifi pv psda, antofagasta (chile) 2015
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Antofagasta, January 14nd, 2015
Solar Resource & Radiometry Tasks in Antofagasta
Aitor Marzo, Ph.D. [email protected]
Mauricio Trigo, Mg.Tania Varas, Mg.
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Index
Antofagasta, 14-Jan 2015Aitor Marzo
• Introduction to Solar Radiation Measurements• Climates and Solar Resource in Región de Antofagasta• Tasks of the CDEA Radiometry Area
2/15
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Introductionto Solar Radiation Measurements
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Why Measure Solar Radiation?
4/15
Antofagasta, 14-Jan 2015Aitor Marzo
Radiation measurements are used for the following
purposes:
(a) To analyze the properties and distribution of the atmosphere with regard
to its constituents;
(b) To verify satellite radiation measurements and algorithms;
(c) To satisfy the needs of biological, medical, agricultural, architectural and industrial activities with respect to radiation;(d) To know the solar resource for solar technologies
Why is exact knowledge of the solar resource so important for solar technologies?-> High impact of the annual irradiation on the LEC (Levelized Electricity
Costs)-> Irradiation is a crucial parameter for site selection and plant design andeconomics of plant
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Solar Irradiance and Atmosphere
5/15
• Direct Normal Irradiance (DNI)
• Diffuse Horizontal Irradiance (DHI)
• Global Horizontal Irradiance (GHI)
Relationship between the three components:
Units: [W m-2] or [W m-2 nm-1]
SZAcos DNI DHI GHI
Antofagasta, 14-Jan 2015Aitor Marzo
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Climates and Solar Resourcein Región de Antofagasta
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7/15
Climates of Región de Antofagasta
Antofagasta, 14-Jan 2015Aitor Marzo
Climate Height Annual T mean Rainfall
min max d
Cloudy Desert > 0 m 13 °C 22 °C ±7 °C 1.7 mm
Normal Desert > 1000 m 8 °C 21 °C ±25 °C 3.1 mm
High Desert* > 2000 m 5 °C 24 °C ±20 °C 5.6 mm
High Steppe * > 3000 m 5 °C 24 °C ±20 °C 68 mm
* South American Monsoon (Austral Summer)
*
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Cloudiness in the Región de Antofagasta
8/15
Antofagasta
Calama San Pedro de Atacama
PSDA
[Ministerio de Energía 2011]
Antofagasta, 14-Jan 2015Aitor Marzo
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Irradiation in Región de Antofagasta
9/15
Antofagasta, 14-Jan 2015Aitor Marzo
[Ministerio de Energía 2011]
Antofagasta
2120 kWh/m2 yr
PSDA2500 kWh/m2 yr
Calama
2630 kWh/m2 yr
San Pedro de Atacama
2610 kWh/m2 yr
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10/15
Antofagasta in the Global Solar Resource Map
Antofagasta, 14-Jan 2015Aitor Marzo
Atacama Desert
>2 500 kWh/m2 (GHI)
>3 000 sunshine hours
per year
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Tasksof the CDEA radiometry area
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Present of CDEA Radiometry Area
12/15
Antofagasta, 14-Jan 2015Aitor Marzo
• Handling and maintenance of radiometric instrumentation• Validation and calibration of instrumentation.• Comparison of ground measurements data against models
derived from satellite data.• SOILING: Dust impact on optical properties (DLR)• Measurement of the atmospheric attenuation in solar
thermal tower plant (PSA-CIEMAT & UAL)
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200 400 600 800 1000 1200 1400 1600 1800
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
Dire
ct S
olar
Spe
ctra
l Irr
adia
nce
[W/m
2 nm]
[nm]
Spec2-a
Test
Outlook of CDEA Radiometry Area
13/15
• Solar Spectral Irradiance measurement campaign (SERC, USACH)
• Solar resource assessment at high altitudes for supplying power to astronomical observatories
Antofagasta, 14-Jan 2015Aitor Marzo
• Surface temperature and radiative flux for CSP technologies
• Provide support for the different research areas
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“If you want to walk fast, walk alone, if you want to walk far, walk together!”
African Proverb
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Thank you for your attention
Aitor Marzo, [email protected]
Mauricio TrigoTania VarasAntofagasta, January 14nd, 2015
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References
16/15
• Pitz-Paal, R., Geuder, N., Hoyer-Klick, C., Schillings, C., 2007. How to get bankable meteo data? DLR solar resource assessment.
• Wilbert, S. "Determination of Circumsolar Radiation and its Effect on Concentrating Solar Power.“ Ph.D. Thesis. Rheinisch Westfälische Technische Hochschule Aachen, DLR, 2014. Print.
• Ministerio de Energía, Gobierno de Chile, 2011. Explorador de Energía Solar. 2014.• NASA. https://eosweb.larc.nasa.gov/sse/. 2013;2014.• GeoModel. http://solargis.info. 2014;2014.• Wolfertstetter, F., 2013. Reflector Soiling and Cleaning Methods. @ SFERA Summer School Hornberg, May 15th –
16th.• World Meteorological Organization (WMO). Guide to Meteorological Instruments and Methods of Observation.
7th ed. Geneva (Switzerland): Chairperson, Publications Board, 2008.• Ballestrín J, Marzo A. Solar radiation attenuation in solar tower plants. Solar Energy 2012;86:388-92.• Alxneit I. Measuring temperatures in a high concentration solar simulator – Demonstration of the principle. Solar
Energy 2011;85:516-22.• Marzo A, Ballestrín J, Barbero J, Cañadas I, Rodríguez J. Solar blind pyrometry not relying on atmospheric
absorption bands. Solar Energy 2014;107:415-22.• Ballestrín J, Marzo A, Cañadas I, Rodríguez J. Testing a solar-blind pyrometer. Metrologia 2010;47:646-51.
Antofagasta, 14-Jan 2015Aitor Marzo