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1

Insolation data manual and direct normal solar radiation data manual  

SciTech Connect (OSTI)

The Insolation Data Manual presents monthly averaged data which describes the availability of solar radiation at 248 National Weather Service (NWS) stations, principally in the United States. Monthly and annual average daily insolation and temperature values have been computed from a base of 24--25 years of data, generally from 1952--1975, and listed for each location. Insolation values represent monthly average daily totals of global radiation on a horizontal surface and are depicted using the three units of measurement: kJ/m{sup 2} per day, Btu/ft{sup 2} per day and langleys per day. Average daily maximum, minimum and monthly temperatures are provided for most locations in both Celsius and Fahrenheit. Heating and cooling degree-days were computed relative to a base of 18.3 C (65 F). For each station, global {bar K}{sub T} (cloudiness index) values were calculated on a monthly and annual basis. Global {bar K}{sub T} is an index of cloudiness and indicates fractional transmittance of horizontal radiation, from the top of the atmosphere to the earth's surface. The second section of this volume presents long-term monthly and annual averages of direct normal solar radiation for 235 NWS stations, including a discussion of the basic derivation process. This effort is in response to a generally recognized need for reliable direct normal data and the recent availability of 23 years of hourly averages for 235 stations. The relative inaccessibility of these data on microfiche further justifies reproducing at least the long-term averages in a useful format. In addition to a definition of terms and an overview of the ADIPA model, a discussion of model validation results is presented.

none,

1990-07-01T23:59:59.000Z

2

Improved Methodology to Measure Normal Incident Solar Radiation with a Multi-Pyranometer Array  

E-Print Network [OSTI]

ESL-PA-13-11-02 Available online at www.sciencedirect.com Energy Procedia 00 (2013) 000–000 www.elsevier.com/locate/procedia 2013 ISES Solar World Congress Improved Methodology to Measure Normal... Incident Solar Radiation with a Multi-Pyranometer Array Juan-Carlos Baltazar*, Yifu Sun, Jeff Haberl Energy Systems Laboratory, Texas A&M Engineering Experiment Station, The Texas A&M University System College Station, TX 77845, U.S.A. Abstract...

Baltazar, J.C.; Sun, Y.; Haberl, J.

3

Solar radiation intensity calculations  

E-Print Network [OSTI]

SOLAR RADIATION INTENSITY CALCULATIONS A Thesis by RANDOLPH STEVEN LEVINE Submitted to the Graduate College of Texas A&M University in partia'l fulfillment of the requirement for the degree of MASTER OF SCIENCE December 1978 Major Subject...: Physics SOLAR RADIATION INTENSITY CALCULATIONS A Thesis by RANDOLPH STEVEN LEVINE Approved as to style and content by: (Chairman of Committee) (Member) (Member) ( member) (Head of Department) December 1978 f219 037 ABSTRACT Solar Radiation...

Levine, Randolph Steven

1978-01-01T23:59:59.000Z

4

Pacific Northwest Solar Radiation Data  

E-Print Network [OSTI]

Pacific Northwest Solar Radiation Data UO SOLAR MONITORING LAB Physics Department -- Solar Energy Center 1274 University of Oregon Eugene, Oregon 97403-1274 April 1, 1999 #12;Hourly solar radiation data

Oregon, University of

5

Solar and Infrared Radiation Station (SIRS) Handbook  

SciTech Connect (OSTI)

The Solar Infrared Radiation Station (SIRS) provides continuous measurements of broadband shortwave (solar) and longwave (atmospheric or infrared) irradiances for downwelling and upwelling components. The following six irradiance measurements are collected from a network of stations to help determine the total radiative flux exchange within the Atmospheric Radiation Measurement (ARM) Southern Great Plains (SGP) Climate Research Facility: • Direct normal shortwave (solar beam) • Diffuse horizontal shortwave (sky) • Global horizontal shortwave (total hemispheric) • Upwelling shortwave (reflected) • Downwelling longwave (atmospheric infrared) • Upwelling longwave (surface infrared)

Stoffel, T

2005-07-01T23:59:59.000Z

6

Solar Radiation and Meteorological Data Support  

E-Print Network [OSTI]

Solar Radiation and Meteorological Data Support for the Long Island Solar Farm and NSERCand NSERC-9 2011March 8 9, 2011 #12;LISF Solar Radiation and Meteorological Sensor Network ·· Technology Needs on intermittent source of solar radiationintermittent source of solar radiation #12;LISF Solar Radiation

Homes, Christopher C.

7

7, 499535, 2007 Solar radiation during  

E-Print Network [OSTI]

ACPD 7, 499­535, 2007 Solar radiation during a total solar eclipse C. Emde and B. Mayer Title Page Chemistry and Physics Discussions Simulation of solar radiation during a total solar eclipse: a challenge­535, 2007 Solar radiation during a total solar eclipse C. Emde and B. Mayer Title Page Abstract Introduction

Paris-Sud XI, Université de

8

Solar Radiation and Asteroidal Motion  

E-Print Network [OSTI]

Effects of solar wind and solar electromagnetic radiation on motion of asteroids are discussed. The results complete the statements presented in Vokrouhlick\\'{y} and Milani (2000). As for the effect of electromagnetic radiation, the complete equation of motion is presented to the first order in $v/c$ -- the shape of asteroid (spherical body is explicitly presented) and surface distribution of albedo should be taken into account. Optical quantities must be calculated in proper frame of reference.

Jozef Klacka

2000-09-07T23:59:59.000Z

9

Solar Position Algorithm for Solar Radiation Applications (Revised...  

Office of Scientific and Technical Information (OSTI)

Revised January 2008 * NRELTP-560-34302 Solar Position Algorithm for Solar Radiation Applications Ibrahim Reda and Afshin Andreas National Renewable Energy Laboratory 1617 Cole...

10

Deriving cloud velocity from an array of solar radiation measurements  

E-Print Network [OSTI]

medium term operational solar radiation forecasts in the US.term forecasting of solar radiation: a statistical approachterm forecasting of solar radiation based on satellite data.

Bosch, J.L.; Zheng, Y.; Kleissl, J.

2013-01-01T23:59:59.000Z

11

Kingdom of Saudi Arabia Solar Radiation Atlas  

SciTech Connect (OSTI)

This atlas provides a record of monthly mean solar radiation generated by a Climatological Solar Radiation model, using quasi-climatological inputs of cloud cover, aerosol optical depth, precipitable water vapor, ozone, surface albedo, and atmospheric pressure.

NREL

1998-12-16T23:59:59.000Z

12

1991-2005 National Solar Radiation Database  

SciTech Connect (OSTI)

This fact sheet provides an overview of the purpose, benefit, and features of the newly updated National Solar Radiation Database.

Wilcox, S.

2007-05-01T23:59:59.000Z

13

ELEG620: Solar Electric Systems University of Delaware, ECE Spring 2008 C. Honsberg Solar Radiation  

E-Print Network [OSTI]

ELEG620: Solar Electric Systems University of Delaware, ECE Spring 2008 C. Honsberg Solar Radiation Solar Radiation: Effects of atmosphere, angular dependence of radiation, variation of solar radiation ­ Calculation of Solar Radiation: · Estimate of intensity of solar radiation · Angular Dependence ­ Solar Noon

Honsberg, Christiana

14

VII. SOLAR RADIATION DATA COMPARISONS In this section some of the solar radiation data  

E-Print Network [OSTI]

18 VII. SOLAR RADIATION DATA COMPARISONS In this section some of the solar radiation data gathered by the UO Solar Monitoring Network is presented in tabular and pictorial form and related to similar information from other Western U.S. sites. A comparison of the amount of incident solar radiation is made us

Oregon, University of

15

THE EFFECT OF CIRCUMSOLAR RADIATION ON THE ACCURACY OF PYRHELIOMETER MEASUREMENTS OF THE DIRECT SOLAR RADIATION  

E-Print Network [OSTI]

r Presented at the Solar Radiation workshop of Solar Rising,MEASUREMENTS OF THE DIRECT SOLAR RADIATION D. Grether, D.Diffuse, and Total Solar Radiation," Solar Energy, vol. 4,

Grether, D.

2012-01-01T23:59:59.000Z

16

For the Meyer Fund for Sustainable Development and the University of Oregon Department of Physics and Solar Radiation Monitoring Laboratory  

E-Print Network [OSTI]

and Solar Radiation Monitoring Laboratory Page C.1 6/20/2011 Appendix C: Vocabulary The following cell or module Global Irradiance (GHI) Total solar radiation on a horizontal surface Direct Normal

Oregon, University of

17

NREL Solar Radiation Resource Assessment Project: Status and outlook  

SciTech Connect (OSTI)

This report summarizes the activities and accomplishments of NREL's Solar Radiation Resource Assessment Project during fiscal year 1991. Currently, the primary focus of the SRRAP is to produce a 1961--1990 National Solar Radiation Data Base, providing hourly values of global horizontal, diffuse, and direct normal solar radiation at approximately 250 sites around the United States. Because these solar radiation quantities have been measured intermittently at only about 50 of these sites, models were developed and applied to the majority of the stations to provide estimates of these parameters. Although approximately 93% of the data base consists of modeled data this represents a significant improvement over the SOLMET/ERSATZ 1952--1975 data base. The magnitude and importance of this activity are such that the majority of SRRAP human and financial in many other activities, which are reported here. These include the continued maintenance of a solar radiation monitoring network in the southeast United States at six Historically Black Colleges and Universities (HBCU's), the transfer of solar radiation resource assessment technology through a variety of activities, participation in international programs, and the maintenance and operation of NREL's Solar Radiation Research Laboratory. 17 refs.

Renne, D.; Riordan, C.; Maxwell, E.; Stoffel, T.; Marion, B.; Rymes, M.; Wilcox, S.; Myers, D.

1992-05-01T23:59:59.000Z

18

Interim Solar Radiation Data Manual: 30-Year Statistics from the National Solar Radiation Data Base  

SciTech Connect (OSTI)

The 30-year (1961-1990) statistics contained in this document have been derived from the National Solar Radiation Data Base (NSRDB) produced by the National Renewable Energy Laboratory (NREL). They outline solar radiation sources, as well as 30-year monthly and annual means of 5 solar radiation elements (three surface and two extraterrestrial) and 12 meteorological elements for 239 locations.

Not Available

1992-11-01T23:59:59.000Z

19

Historically Black Colleges and Universities (HBCU) Solar Radiation Monitoring Network  

DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

The Historically Black Colleges and Universities (HBCU) Solar Radiation Monitoring Network operated from November 1985 through December 1996. The six-station network provided 5-minute averaged measurements of global and diffuse horizontal solar irradiance. The data were processed at the National Renewable Energy Laboratory (NREL) to improve the assessment of the solar radiation resources in the southeastern United States. Three of the stations also measured the direct-normal solar irradiance with a pyrheliometer mounted in an automatic sun tracker. All data are archived in the Standard Broadband Format (SBF) with quality-assessment indicators. Monthly data summaries and plots are also available for each month. In January 1997 the HBCU sites became part of the CONFRRM solar monitoring network.

20

Solar radiation data manual for buildings  

SciTech Connect (OSTI)

Architects and engineers use solar resource information to help design passive solar and daylighting features for buildings. Solar resource information includes data on how much solar radiation and illuminance are available for different window orientations, and how they vary. This manual provides solar radiation and illuminance values for a horizontal window and four vertical windows (facing north, east, south, and west) for 239 stations in the United States and its territories. The solar radiation values are monthly and yearly averages for the period of 1961--1990. Included are values showing the solar radiation incident on the window and the amount transmitted into the living space, with and without exterior shading of the window. Illuminance values are presented r average dismal profiles for 4 months of the year. In addition to the solar radiation and illuminance data, this manual contains tables listing climatic condition such as average temperature, average daily minimum and maximum temperature, record minimum and maxi mum temperature, average heating and cooling degree days, average humidity ratio, average wind speed, an average clearness index. The solar radiation, illuminance, and climatic data a presented in tables. Data for each station are presented on a single page, and the pages are arranged alphabetically by the state or territory two-letter abbreviation. Within a state or territory, the pages are arranged alp betically by city or island.

Marion, W.; Wilcox, S.

1995-09-01T23:59:59.000Z

Note: This page contains sample records for the topic "normal solar radiation" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


21

Measurement and analysis of near ultraviolet solar radiation  

SciTech Connect (OSTI)

The photocatalytic detoxification of organic contaminants is currently being investigated by a number of laboratories, universities, and institutions throughout the world. The photocatalytic oxidation process requires that contaminants come in contact with a photocatalyst such as titanium dioxide, under illumination of ultraviolet (UV) radiation in order for the decomposition reaction to take place. Researches from the National Renewable Energy Laboratory (NREL) and Sandia National Laboratories are currently investigating the use of solar energy as a means of driving this photocatalytic process. Measurements of direct-normal and global-horizontal ultraviolet (280--385 nm) and full-spectrum (280--4000 nm) solar radiation taken in Golden, Colorado over a one-year period are analyzed, and comparisons are made with data generated from a clear-sky solar radiation model (BRITE) currently in use for predicting the performance of solar detoxification processes. Analysis of the data indicates a ratio of global-horizontal ultraviolet to full-spectrum radiation of 4%--6% that is weakly dependent on air mass. Conversely, data for direct-normal ultraviolet radiation indicate a much large dependence on air mass, with a ratio of approximately 5% at low air mass to 1% at higher at masses. Results show excellent agreement between the measured data and clear-sky predictions for both the ultraviolet and the full-spectrum global-horizontal radiation. For the direct-normal components, however, the tendency is for the clear-sky model to underpredict the measured that. Averaged monthly ultraviolet radiation available for the detoxification process indicates that the global-horizontal component of the radiation exceeds the direct-normal component throughout the year. 9 refs., 7 figs.

Mehos, M.S.; Pacheco, K.A.; Link, H.F.

1991-12-01T23:59:59.000Z

22

Forecasting of Solar Radiation Detlev Heinemann, Elke Lorenz, Marco Girodo  

E-Print Network [OSTI]

Forecasting of Solar Radiation Detlev Heinemann, Elke Lorenz, Marco Girodo Oldenburg University have been presented more than twenty years ago (Jensenius, 1981), when daily solar radiation forecasts

Heinemann, Detlev

23

Effect of Solar Radiation on the Optical Properties and Molecular...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Solar Radiation on the Optical Properties and Molecular Composition of Laboratory Proxies of Atmospheric Brown Carbon Effect of Solar Radiation on the Optical Properties and...

24

Solar Radiation Research Laboratory (Poster)  

SciTech Connect (OSTI)

SunShot Initiative awardee posters describing the different technologies within the four subprograms of the DOE Solar Program (Photovoltaics, Concentrating Solar Power, Soft Costs, and Systems Integration).

Stoffel, T.; Andreas, A.; Reda, I.; Dooraghi, M.; Habte, A.; Kutchenreiter, M.; Wilcox, S.

2012-07-01T23:59:59.000Z

25

SciTech Connect: Effect of radiation on normal hematopoiesis...  

Office of Scientific and Technical Information (OSTI)

Effect of radiation on normal hematopoiesis and on viral induced cancer of the hematopoietic system. Technical progress report, August 1, 1973--July 31, 1974 Citation Details...

26

The solar radiation climate of Texas  

E-Print Network [OSTI]

THE SOLAR RADIATION CLIMATE OF TEXAS A Thesis By VAUGHAN W. HALL Major& USAF Submitted to the Graduate College of the Texas ARM University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE May 1967 Major Subject...: METEOROLOGY THE SOLAR RADIATION CLIMATE OF TEXAS A Thesis By VAUGHAN W. HALL Major, USAF Approved as to style and content by: Ch irman o ommittee Head of epa ent Member / ' 6p trCc-aCZm ~ Me er May 1967 The Solar Radiation Climate of Texas. (May...

Hall, Vaughan Walter

1967-01-01T23:59:59.000Z

27

Absorption of solar radiation by solar neutrinos  

E-Print Network [OSTI]

We calculate the absorption probability of photons radiated from the surface of the Sun by a left-handed neutrino with definite mass and a typical momentum for which we choose |p_1|=0.2 MeV, producing a heavier right-handed antineutrino. Considering two transitions the \

G. Duplancic; P. Minkowski; J. Trampetic

2004-03-22T23:59:59.000Z

28

RADIATIVE HEATING OF THE SOLAR CORONA  

SciTech Connect (OSTI)

We investigate the effect of solar visible and infrared radiation on electrons in the Sun's atmosphere using a Monte Carlo simulation of the wave-particle interaction and conclude that sunlight provides at least 40% and possibly all of the power required to heat the corona, with the exception of dense magnetic flux loops. The simulation uses a radiation waveform comprising 100 frequency components spanning the solar blackbody spectrum. Coronal electrons are heated in a stochastic manner by low coherence solar electromagnetic radiation. The wave 'coherence time' and 'coherence volume' for each component is determined from optical theory. The low coherence of solar radiation allows moving electrons to gain energy from the chaotic wave field which imparts multiple random velocity 'kicks' to these particles causing their velocity distribution to broaden or heat. Monte Carlo simulations of broadband solar radiative heating on ensembles of 1000 electrons show heating at per particle levels of 4.0 x 10{sup -21} to 4.0 x 10{sup -20} W, as compared with non-loop radiative loss rates of {approx}1 x 10{sup -20} W per electron. Since radiative losses comprise nearly all of the power losses in the corona, sunlight alone can explain the elevated temperatures in this region. The volume electron heating rate is proportional to density, and protons are assumed to be heated either by plasma waves or through collisions with electrons.

Moran, Thomas G., E-mail: moran@grace.nascom.nasa.gov [Physics Department, Catholic University of America, 200 Hannan Hall, Washington, DC 20064 (United States) and NASA/GSFC, Code 671, Greenbelt, MD 20771 (United States)

2011-10-20T23:59:59.000Z

29

III. VALUE OF LONG-TERM SOLAR RADIATION DATA Long-term solar radiation data sets are scarce  

E-Print Network [OSTI]

5 III. VALUE OF LONG-TERM SOLAR RADIATION DATA Long-term solar radiation data sets are scarce due answered. The utilizability of 5, 15, and 30-year solar radiation data sets is summarized as follows. · 5-year data sets determine the long-term average solar radiation with a fair degree of accuracy, but do

Oregon, University of

30

The European Solar Radiation Atlas 1 Page J., M. Albuisson, L. Wald, 2001. The European solar radiation atlas: a valuable digital tool. Solar Energy,  

E-Print Network [OSTI]

The European Solar Radiation Atlas 1 Page J., M. Albuisson, L. Wald, 2001. The European solar radiation atlas: a valuable digital tool. Solar Energy, 71, 81-83, 2001.1 The European Solar Radiation Atlas European Solar Radiation Atlas (ESRA) is now available. It is published by Les Presses de l'Ecole des Mines

Paris-Sud XI, Université de

31

20 Years of Solar Measurements: The Solar Radiation Research Laboratory (SRRL) at NREL  

E-Print Network [OSTI]

20 Years of Solar Measurements: The Solar Radiation Research Laboratory (SRRL) at NREL Tom to provide for: · Maximum annual solar access · Continuous measurements of key solar radiation resources · Calibrations of instruments used to measure solar radiation · Training of meteorological station operators

32

Absorption of solar radiation by the cloudy atmosphere: Further interpretations of collocated aircraft measurements  

E-Print Network [OSTI]

J. Vitko Jr. , Absorption of solar radiation by the cloudyet al. , Absorption of solar radiation by clouds: Observa-1999 Absorption of solar radiation by the cloudy atmosphere:

1999-01-01T23:59:59.000Z

33

National Renewable Energy Laboratory Solar Radiation Research Laboratory  

E-Print Network [OSTI]

National Renewable Energy Laboratory Solar Radiation Research Laboratory (SRRL) Instrument of Energy (DoE). Objectives · Provide Improved Methods for Radiometer Calibrations · Develop a Solar Energy Resources · Offer Unique Training Methods for Solar Monitoring Network Design, Operation

34

Estimating GroundEstimating Ground--Level Solar RadiationLevel Solar Radiation and Evapotranspiration In Puerto Ricoand Evapotranspiration In Puerto Rico  

E-Print Network [OSTI]

Estimating GroundEstimating Ground--Level Solar RadiationLevel Solar Radiation radiation, therefore, solar radiation measurements throughout the island are essential. #12;Currently, including solar radiation ·In PR, solar radiation is only available at selected locations. · The majority

Gilbes, Fernando

35

Atmospheric response to solar radiation absorbed by phytoplankton  

E-Print Network [OSTI]

Atmospheric response to solar radiation absorbed by phytoplankton K. M. Shell and R. Frouin Scripps the absorption of solar radiation, affecting upper ocean temperature and circulation. These changes, in turn: phytoplankton, atmospheric general circulation model (AGCM), absorption of solar radiation, seasonal cycle, sea

Shell, Karen M.

36

A BAYESIAN MODEL COMMITTEE APPROACH TO FORECASTING GLOBAL SOLAR RADIATION  

E-Print Network [OSTI]

1 A BAYESIAN MODEL COMMITTEE APPROACH TO FORECASTING GLOBAL SOLAR RADIATION in the realm of solar radiation forecasting. In this work, two forecasting models: Autoregressive Moving. The very first results show an improvement brought by this approach. 1. INTRODUCTION Solar radiation

Boyer, Edmond

37

FORECASTING SOLAR RADIATION PRELIMINARY EVALUATION OF AN APPROACH  

E-Print Network [OSTI]

FORECASTING SOLAR RADIATION -- PRELIMINARY EVALUATION OF AN APPROACH BASED UPON THE NATIONAL, and undertake a preliminary evaluation of, a simple solar radiation forecast model using sky cover predictions forecasts is 0.05o in latitude and longitude. Solar Radiation model: The model presented in this paper

Perez, Richard R.

38

ANALYSIS OF SHORT-TERM SOLAR RADIATION DATA Gayathri Vijayakumar  

E-Print Network [OSTI]

ANALYSIS OF SHORT-TERM SOLAR RADIATION DATA Gayathri Vijayakumar Sanford A. Klein William A beckman@engr.wisc.edu ABSTRACT Solar radiation data are available for many locations on an hourly basis annual performance, although solar radiation can exhibit wide variations during an hour. Variations

Wisconsin at Madison, University of

39

Solar radiation decreases parasitism in Daphnia Erin P. Overholt,1  

E-Print Network [OSTI]

LETTER Solar radiation decreases parasitism in Daphnia Erin P. Overholt,1 * Spencer R. Hall,2 Craig spores but did not affect host susceptibility to infection. The parasiteÃ?s sensitivity to solar radiation may underlie patterns in a lake survey: higher penetration of solar radiation into lakes correlated

Cáceres, Carla E.

40

Detecting solar chameleons through radiation pressure  

E-Print Network [OSTI]

Light scalar fields can drive the accelerated expansion of the universe. Hence, they are obvious dark energy candidates. To make such models compatible with tests of General Relativity in the solar system and "fifth force" searches on Earth, one needs to screen them. One possibility is the so-called "chameleon" mechanism, which renders an effective mass depending on the local matter density. If chameleon particles exist, they can be produced in the sun and detected on earth exploiting the equivalent of a radiation pressure. Since their effective mass scales with the local matter density, chameleons can be reflected by a dense medium if their effective mass becomes greater than their total energy. Thus, under appropriate conditions, a flux of solar chameleons may be sensed by detecting the total instantaneous momentum transferred to a suitable opto-mechanical force/pressure sensor. We calculate the solar chameleon spectrum and the reach in the chameleon parameter space of an experiment using the preliminary re...

Baum, S; Hoffmann, D H H; Karuza, M; Semertzidis, Y K; Upadhye, A; Zioutas, K

2014-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "normal solar radiation" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


41

Comparison of Direct Normal Irradiance Derived from Silicon and Thermopile Global Hemispherical Radiation Detectors: Preprint  

SciTech Connect (OSTI)

Concentrating solar applications utilize direct normal irradiance (DNI) radiation, a measurement rarely available. The solar concentrator industry has begun to deploy numerous measurement stations to prospect for suitable system deployment sites. Rotating shadowband radiometers (RSR) using silicon photodiodes as detectors are typically deployed. This paper compares direct beam estimates from RSR to a total hemispherical measuring radiometer (SPN1) multiple fast thermopiles. These detectors simultaneously measure total and diffuse radiation from which DNI can be computed. Both the SPN1 and RSR-derived DNI are compared to DNI measured with thermopile pyrheliometers. Our comparison shows that the SPN1 radiometer DNI estimated uncertainty is somewhat greater than, and on the same order as, the RSR DNI estimates for DNI magnitudes useful to concentrator technologies.

Myers, D. R.

2010-01-01T23:59:59.000Z

42

Solar Radiation Resource Assessment Project. Program overview of fiscal year 1993  

SciTech Connect (OSTI)

The mission of the Solar Radiation Resource Assessment Project is to provide essential information about the solar radiation resource to users and planners of solar technologies so that they can make informed and timely decisions concerning applications of those technologies. The project team accomplishes this by producing and disseminating relevant and reliable information about solar radiation. Topics include: Variability of solar radiation, measurements of solar radiation, spectral distribution of solar radiation, and assessment of the solar resource. FY 1993 accomplishments are detailed.

Not Available

1994-06-01T23:59:59.000Z

43

NREL Solar Radiation Resource Assessment Project: Status and outlook. FY 1991 annual progress report  

SciTech Connect (OSTI)

This report summarizes the activities and accomplishments of NREL`s Solar Radiation Resource Assessment Project during fiscal year 1991. Currently, the primary focus of the SRRAP is to produce a 1961--1990 National Solar Radiation Data Base, providing hourly values of global horizontal, diffuse, and direct normal solar radiation at approximately 250 sites around the United States. Because these solar radiation quantities have been measured intermittently at only about 50 of these sites, models were developed and applied to the majority of the stations to provide estimates of these parameters. Although approximately 93% of the data base consists of modeled data this represents a significant improvement over the SOLMET/ERSATZ 1952--1975 data base. The magnitude and importance of this activity are such that the majority of SRRAP human and financial in many other activities, which are reported here. These include the continued maintenance of a solar radiation monitoring network in the southeast United States at six Historically Black Colleges and Universities (HBCU`s), the transfer of solar radiation resource assessment technology through a variety of activities, participation in international programs, and the maintenance and operation of NREL`s Solar Radiation Research Laboratory. 17 refs.

Renne, D.; Riordan, C.; Maxwell, E.; Stoffel, T.; Marion, B.; Rymes, M.; Wilcox, S.; Myers, D.

1992-05-01T23:59:59.000Z

44

Direct-Normal Solar Irradiance -A Closure Experiment, Halthore et al. 1 Comparison of Model Estimated and Measured Direct-Normal  

E-Print Network [OSTI]

). This is the energy in the solar spectrum falling per unit time on a unit area of a surface oriented normal to the Sun Direct-normal solar irradiance (DNSI), the total energy in the solar spectrum incident in unit time extinction of solar energy without regard to the details of the extinction - whether absorption or scattering

Schwartz, Stephen E.

45

Solar Energy Materials & Solar Cells 75 (2003) 307312 Extreme radiation hardness and light-weighted  

E-Print Network [OSTI]

Solar Energy Materials & Solar Cells 75 (2003) 307­312 Extreme radiation hardness and light-weighted thin-film indium phosphide solar cell and its computer simulation Guohua Lia, *, Qingfen Yanga+ -i-p+ InP solar cell is developed. The total thickness of its epitaxial layer is only 0.22 mm

Woodall, Jerry M.

46

INVENTORY OF SOLAR RADIATION/SOLAR ENERGY SYSTEMS ESTIMATORS, MODELS, SITE-SPECIFIC DATA, AND PUBLICATIONS  

E-Print Network [OSTI]

INVENTORY OF SOLAR RADIATION/SOLAR ENERGY SYSTEMS ESTIMATORS, MODELS, SITE-SPECIFIC DATA, and Buildings Systems Integration Center National Renewable Energy Laboratory 8 July 2009 SOLAR SYSTEM POTENTIAL/calculators/PVWATTS/version1/ http://rredc.nrel.gov/solar/calculators/PVWATTS/version2/ Estimates the electrical energy

47

Solar radiation management impacts on agriculture in China: A case study in the Geoengineering  

E-Print Network [OSTI]

Solar radiation management impacts on agriculture in China: A case study in the Geoengineering-Earth Science and Technology, Yokohama, Japan Abstract Geoengineering via solar radiation management could affect agricultural productivity due to changes in temperature, precipitation, and solar radiation

Robock, Alan

48

Optimum fixed orientations and benefits of tracking for capturing solar radiation in the continental United States  

E-Print Network [OSTI]

Dunlop, PV-GIS: a web-based solar radiation database for the2010. 10. NREL, National Solar Radiation Database, 1991-200514. S. Wilcox, National solar radiation database 1991-2005

Lave, Matthew; Kleissl, Jan

2011-01-01T23:59:59.000Z

49

Modeling the comfort effects of short-wave solar radiation indoors  

E-Print Network [OSTI]

effects of short-wave solar radiation indoors. Building andEFFECTS OF SHORT-WAVE SOLAR RADIATION INDOORS Edward ARENSK. The effects of solar radiation on thermal comfort.

Arens, Edward; Huang, Li; Hoyt, Tyler; Zhou, Xin; Schiavon, Stefano

2014-01-01T23:59:59.000Z

50

Physics-Based GOES Satellite Product for Use in NREL's National Solar Radiation Database: Preprint  

SciTech Connect (OSTI)

The National Renewable Energy Laboratory (NREL), University of Wisconsin, and National Oceanic Atmospheric Administration are collaborating to investigate the integration of the Satellite Algorithm for Shortwave Radiation Budget (SASRAB) products into future versions of NREL's 4-km by 4-km gridded National Solar Radiation Database (NSRDB). This paper describes a method to select an improved clear-sky model that could replace the current SASRAB global horizontal irradiance and direct normal irradiances reported during clear-sky conditions.

Sengupta, M.; Habte, A.; Gotseff, P.; Weekley, A.; Lopez, A.; Molling, C.; Heidinger, A.

2014-07-01T23:59:59.000Z

51

Plant Physiology: Manipulating Plant Growth with Solar Radiation Dennis Decoteau, Ph.D.  

E-Print Network [OSTI]

Plant Physiology: Manipulating Plant Growth with Solar Radiation Dennis Decoteau, Ph.D. Department. Greenhouse Glazing & Solar Radiation Transmission Workshop, October 1998 © CCEA, Center for Controlled

Decoteau, Dennis R.

52

Diabat L., Blanc Ph., Wald L., Solar radiation climate in Africa. Solar Energy, 76, 733-744, 2004. SOLAR RADIATION CLIMATE IN AFRICA  

E-Print Network [OSTI]

Diabaté L., Blanc Ph., Wald L., Solar radiation climate in Africa. Solar Energy, 76, 733-744, 2004 is very useful for preliminary assessment and modeling of solar energy systems. Following the approach: clearness index, atmosphere optics, clustering, interpolation, map, solar energy systems Nomenclature: (KTd

Boyer, Edmond

53

Spectral Solar Radiation Data Base at NREL  

DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

*In September 1991 the Solar Energy Research Institute became the National Renewable Energy Laboratory. [Description taken from http://rredc.nrel.gov/solar/old_data/spectral/

54

Search for radiative decays of solar neutrinos during a solar eclipse  

E-Print Network [OSTI]

A search for possible radiative decays of solar neutrinos with emission of photons in the visible range may be performed during total solar eclipses. We discuss some results obtained from the digitized images recorded during the August 11, 1999 total solar eclipse in Romania, and report on the observations made in June 21, 2001, in Zambia. Added reference for Section 1.

G. Giacomelli; V. Popa

2001-10-09T23:59:59.000Z

55

Solar and Photovoltaic Data from the University of Oregon Solar Radiation Monitoring Laboratory (UO SRML)  

DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

The UO SRML is a regional solar radiation data center whose goal is to provide sound solar resource data for planning, design, deployment, and operation of solar electric facilities in the Pacific Northwest. The laboratory has been in operation since 1975. Solar data includes solar resource maps, cumulative summary data, daily totals, monthly averages, single element profile data, parsed TMY2 data, and select multifilter radiometer data. A data plotting program and other software tools are also provided. Shade analysis information and contour plots showing the effect of tilt and orientation on annual solar electric system perfomance make up a large part of the photovoltaics data.(Specialized Interface)

56

National Solar Radiation Database 1991-2005 Update: User's Manual  

SciTech Connect (OSTI)

This manual describes how to obtain and interpret the data products from the updated 1991-2005 National Solar Radiation Database (NSRDB). This is an update of the original 1961-1990 NSRDB released in 1992.

Wilcox, S.

2007-04-01T23:59:59.000Z

57

National Solar Radiation Database 1991-2010 Update: User's Manual  

SciTech Connect (OSTI)

This user's manual provides information on the updated 1991-2010 National Solar Radiation Database. Included are data format descriptions, data sources, production processes, and information about data uncertainty.

Wilcox, S. M.

2012-08-01T23:59:59.000Z

58

Rapid and extensive warming following cessation of solar radiation management  

E-Print Network [OSTI]

Solar radiation management (SRM) has been proposed as a means to alleviate the climate impacts of ongoing anthropogenic greenhouse gas (GHG) emissions. However, its efficacy depends on its indefinite maintenance, without ...

McCusker, Kelly E

59

Public engagement on solar radiation management and why it needs to happen now  

E-Print Network [OSTI]

Public engagement on solar radiation management and why it needs to happen now Wylie A. Carr, and governance of one branch of geoengineering, solar radiation management (SRM), in three key ways: 1;1 The context for public engagement in solar radiation management Solar radiation management (SRM) has recently

Yung, Laurie

60

The optimization of solar radiation upon a rectangular building  

E-Print Network [OSTI]

THE OPTIMIZATION OF SOLAR RADIATION UPON A RECTANGULAR BUILDING A Thesis by JAMES ALLEN INGLF. Submitted to the Graduate College of Texas AAM University in Partial fulfillment of the requirement for the degree of MASTER OF SCIENCE August 19... 3 Major Subjeoti Meteorology THE OPTIMIZATION OF SOLAR RADIATION UPON A RECTANGULAR BUILDING A Thesis by JAILS ALLEN INGLE Approved as to style and content bye Cha an of ittee Mr, ' ohn F, Griffiths Member Dro Robert CD Runnels Head...

Ingle, James Allen

1973-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "normal solar radiation" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


61

Evaluation of Radiometers Deployed at the National Renewable Energy Laboratory's Solar Radiation Research Laboratory  

SciTech Connect (OSTI)

This study analyzes the performance of various commercially available radiometers used for measuring global horizontal irradiances and direct normal irradiances. These include pyranometers, pyrheliometers, rotating shadowband radiometers, and a pyranometer with fixed internal shading and are all deployed at the National Renewable Energy Laboratory's Solar Radiation Research Laboratory. Data from 32 global horizontal irradiance and 19 direct normal irradiance radiometers are presented. The radiometers in this study were deployed for one year (from April 1, 2011, through March 31, 2012) and compared to measurements from radiometers with the lowest values of estimated measurement uncertainties for producing reference global horizontal irradiances and direct normal irradiances.

Habte, A.; Wilcox, S.; Stoffel, T.

2014-02-01T23:59:59.000Z

62

TRENDS IN DIRECT NORMAL SOLAR IRRADIANCE IN OREGON FROM 1979-2003 Laura Riihimaki  

E-Print Network [OSTI]

in large part on the data provided by the Global Energy Balance Archive. Additional data from the United is important for assessing the risks and reliability of power generated from solar energy facilities States National Solar Radiation Data Base (NSRDB) in the Liepert study contributes to some variation

Oregon, University of

63

Short term forecasting of solar radiation based on satellite data  

E-Print Network [OSTI]

Short term forecasting of solar radiation based on satellite data Elke Lorenz, Annette Hammer term time range of 30 minutes to 6 hours. As far as short term horizons are concerned, satellite data index images according to the Heliosat method, a semi-empirical methode to derive radiation from

Heinemann, Detlev

64

Synchrotron radiation damage observations in normal incidence copper mirrors  

SciTech Connect (OSTI)

Water-cooled copper mirrors used at near-normal incidence on two beam lines at the NSLS are observed to undergo severe degradation upon exposure to the direct SR beam. These mirrors are used on beam lines designed to utilize radiation in the wavelength regions longer than 100 nm and are coated with a uv reflection-enhancing coating, consisting of one or more bilayers of aluminum with a MgF/sub 2/ overcoat. Beamline performance degrades very rapidly following installation of a new set of mirrors. Analysis of the mirror surfaces by various non-destructive techniques indicates severe degradation of the coating and surface along the central strip where most of the x-ray power is absorbed from the beam. In one case where the mirror had three bilayer coatings, the outer coating layer has disappeared along the central strip. Rutherford backscatter measurements indicate compositional changes between layers and confirm the existence of a carbon deposit on the surface. Thermal modeling suggests that most of the damage is caused by direct photon interaction, since the temperature rise in the energy deposition region is small.

Takacs, P.Z.; Melendez, J.; Colbert, J.

1985-08-01T23:59:59.000Z

65

Progress Toward an Updated National Solar Radiation Data Base  

SciTech Connect (OSTI)

Progress is reported on an updated National Solar Radiation Database (NSRDB). Focus on this year's work was on preparing a test-year database for evaluating several solar radiation models that could be used to replace the METSTAT model used in the original 1961-1990 NSRDB. That model is no longer compatible with cloud observations reported by the National Weather Service. We have also included a satellite-based model that will increase the spatial resolution of solar radiation for GIS or mapping applications. Work also included development of improved estimates for aerosols, water vapor, and ozone. High-quality solar measurements were obtained for 33 sites near National Weather Service stations, and model runs were completed for test years 1999 and 2000.

Wilcox, S.; Anderberg, M.; George, R.; Marion, W.; Myers, D.; Renne, D.; Beckman, W.; DeGaetano, A.; Gueymard, C.; Perez, R.; Plantico, M.; Stackhouse, P.; Vignola, F.

2005-01-01T23:59:59.000Z

66

12th North America Bangla Literature and Culture Convention 2010 (NABLCC10) EFFECT OF SOLAR RADIATION  

E-Print Network [OSTI]

scatters and burns part of the incoming particles. However, the visible and near-infrared solar radiation penetrate through the earth's atmosphere. Solar Radiation in the Atmosphere and Grrenhouse Effect The solar radiation entering its atmosphere through an energy cycle called the Greenhouse effect. Of the total solar

Nahar, Sultana Nurun

67

VARIABILITY OF SOLAR RADIATION DATA OVER SHORT TIME INTERVALS Frank Vignola  

E-Print Network [OSTI]

VARIABILITY OF SOLAR RADIATION DATA OVER SHORT TIME INTERVALS Frank Vignola Department of Physics ra- diation. This article examines at the variability of beam and global solar radiation over short solar radiation values with ground-based data. 1. INTRODUCTION It is difficult to evaluate solar

Oregon, University of

68

ON THE SOLAR RADIATION BUDGET AND THE CLOUD ABSORPTION ANOMALY DEBATE  

E-Print Network [OSTI]

ON THE SOLAR RADIATION BUDGET AND THE CLOUD ABSORPTION ANOMALY DEBATE ZHANQING LI Department-of-the-art radiative transfer models. 1. Introduction Solar radiation is the ultimate source of energy for the planet of solar radiation, which is unfortunately still fraught with large uncertainties (Wild et al. 1995; Li et

Li, Zhanqing

69

A simplified physical model for assessing solar radiation over Brazil using GOES 8 visible imagery  

E-Print Network [OSTI]

A simplified physical model for assessing solar radiation over Brazil using GOES 8 visible imagery; published 30 January 2004. [1] Solar radiation assessment by satellite is constrained by physical Composition and Structure: Transmission and scattering of radiation; KEYWORDS: solar radiation, satellite

70

CALIFORNIA SOLAR DATA MANUAL  

E-Print Network [OSTI]

Estimating Unmeasured Solar Radiation Quantities . . . . . .Appendix C - Appendix 0 - Solar Radiation Glossary. ConversSolar Data a. Solar Radiation. , , . , . . , , , , . , . . .

Berdahl, P.

2010-01-01T23:59:59.000Z

71

Solar Radiation Pressure and Deviations from Keplerian Orbits  

E-Print Network [OSTI]

Newtonian gravity and general relativity give exactly the same expression for the period of an object in circular orbit around a static central mass. However, when the effects of the curvature of spacetime and solar radiation pressure are considered simultaneously for a solar sail propelled satellite, there is a deviation from Kepler's third law. It is shown that solar radiation pressure affects the period of this satellite in two ways: by effectively decreasing the solar mass, thereby increasing the period, and by enhancing the effects of other phenomena, rendering some of them detectable. In particular, we consider deviations from Keplerian orbits due to spacetime curvature, frame dragging from the rotation of the sun, the oblateness of the sun, a possible net electric charge of the sun, and a very small positive cosmological constant.

Roman Ya. Kezerashvili; Justin F. Vazquez-Poritz

2009-04-15T23:59:59.000Z

72

Coastal-inland solar radiation difference study. Final report  

SciTech Connect (OSTI)

The purpose of this study was to quantify the characteristics of solar insolation in the coastal zone and to determine the effect of the sea breeze circulation on the global insolation. In order to satisfy these objectives, a six station sampling network was established in the coastal plain of southeastern North Carolina, where previous evidence has indicated that the sea breeze circulation is almost a daily occurrence from late May through October. Three sites (Sloop Point, Onslow Beach, and Cape Fear Technical Institute (CFTI)) were located near the coast (coastal sites) to assess the insolation at the coast. A site (Clinton) was located in an area seldom affected by the sea breeze (about 100 km from the coast). Two additional sites, Wallace and Ellis Airport, located between the coastal sites and the control site, were to be used to assess the transient impact of the sea breeze upon the insolation. Pyranometers were located at each site to measure the global insolation. Direct normal insolation measured by a pyrheliometer and ultraviolet radiation measured by uv radiometers were observed at the Sloop Point and Clinton sites only. Data were collected during the calendar year 1978. The results of the study indicated that the global insolation had greater variability over the network during the summer season (June, July, and August). During the summer, there was a systematicdiurnal variation of the difference in global insolation between the inland and the coastal sites.

Bach, W.D. Jr.; Vukovich, F.M.

1980-04-01T23:59:59.000Z

73

Modeling and Analysis of Solar Radiation Potentials on Building Rooftops  

SciTech Connect (OSTI)

The active application of photovoltaic for electricity generation could effectively transform neighborhoods and commercial districts into small, localized power plants. This application, however, relies heavily on an accurate estimation of the amount of solar radiation that is available on individual building rooftops. While many solar energy maps exist at higher spatial resolution for concentrated solar energy applications, the data from these maps are not suitable for roof-mounted photovoltaic for several reasons, including lack of data at the appropriate spatial resolution and lack of integration of building-specific characteristics into the models used to generate the maps. To address this problem, we have developed a modeling framework for estimating solar radiation potentials on individual building rooftops that is suitable for utility-scale applications as well as building-specific applications. The framework uses light detection and ranging (LIDAR) data at approximately 1-meter horizontal resolution and 0.3-meter vertical resolution as input for modeling a large number of buildings quickly. One of the strengths of this framework is the ability to parallelize its implementation. Furthermore, the framework accounts for building specific characteristics, such as roof slope, roof aspect, and shadowing effects, that are critical to roof-mounted photovoltaic systems. The resulting data has helped us to identify the so-called solar panel sweet spots on individual building rooftops and obtain accurate statistics of the variation in solar radiation as a function of time of year and geographical location.

Omitaomu, Olufemi A [ORNL; Kodysh, Jeffrey B [ORNL; Bhaduri, Budhendra L [ORNL

2012-01-01T23:59:59.000Z

74

Frank Vignola Solar Radiation Monitoring Laboratory  

E-Print Network [OSTI]

thermal electric systems in the 5- to 30-MegaWatt (MW) size were built; however, over the next 20 years there was a hiatus in building large solar thermal electric facilities. Ten years ago, photovoltaic (PV) systems the size in which an installation must obtain a Large Generation Intercon- nection Agreement and complete

Oregon, University of

75

Reliability analysis of solar photovoltaic system using hourly mean solar radiation data  

SciTech Connect (OSTI)

This paper presents the hourly mean solar radiation and standard deviation as inputs to simulate the solar radiation over a year. Monte Carlo simulation (MCS) technique is applied and MATLAB program is developed for reliability analysis of small isolated power system using solar photovoltaic (SPV). This paper is distributed in two parts. Firstly various solar radiation prediction methods along with hourly mean solar radiation (HMSR) method are compared. The comparison is carried on the basis of predicted electrical power generation with actual power generated by SPV system. Estimation of solar photovoltaic power using HMSR method is close to the actual power generated by SPV system. The deviation in monsoon months is due to the cloud cover. In later part of the paper various reliability indices are obtained by HMSR method using MCS technique. Load model used is IEEE-RTS. Reliability indices, additional load hours (ALH) and additional power (AP) reduces exponentially with increase in load indicates that a SPV source will offset maximum fuel when all of its generated energy is utilized. Fuel saving calculation is also investigated. Case studies are presented for Sagardeep Island in West Bengal state of India. (author)

Moharil, Ravindra M. [Department of Electrical Engineering, Yeshwantrao Chavan College of Engineering, Nagpur, Maharashtra (India); Kulkarni, Prakash S. [Department of Electrical Engineering, Visvesvaraya National Institute of Technology, South Ambazari Road, Nagpur 440011, Maharashtra (India)

2010-04-15T23:59:59.000Z

76

Solar Radiation Modeling and Measurements for Renewable Energy Applications: Data and Model Quality; Preprint  

SciTech Connect (OSTI)

Measurement and modeling of broadband and spectral terrestrial solar radiation is important for the evaluation and deployment of solar renewable energy systems. We discuss recent developments in the calibration of broadband solar radiometric instrumentation and improving broadband solar radiation measurement accuracy. An improved diffuse sky reference and radiometer calibration and characterization software and for outdoor pyranometer calibrations is outlined. Several broadband solar radiation model approaches, including some developed at the National Renewable Energy Laboratory, for estimating direct beam, total hemispherical and diffuse sky radiation are briefly reviewed. The latter include the Bird clear sky model for global, direct beam, and diffuse terrestrial solar radiation; the Direct Insolation Simulation Code (DISC) for estimating direct beam radiation from global measurements; and the METSTAT (Meteorological and Statistical) and Climatological Solar Radiation (CSR) models that estimate solar radiation from meteorological data. We conclude that currently the best model uncertainties are representative of the uncertainty in measured data.

Myers, D. R.

2003-03-01T23:59:59.000Z

77

Optimum fixed orientations and benefits of tracking for capturing solar radiation in the continental United States  

E-Print Network [OSTI]

a panel’s solar conversion efficiency, power output can besolar panels, since incident radiation is nearly linearly proportional to power outputfor power output. To maximize absorption of solar radiation

Lave, Matthew; Kleissl, Jan

2011-01-01T23:59:59.000Z

78

SHORT-TERM FORECASTING OF SOLAR RADIATION BASED ON SATELLITE DATA WITH STATISTICAL METHODS  

E-Print Network [OSTI]

SHORT-TERM FORECASTING OF SOLAR RADIATION BASED ON SATELLITE DATA WITH STATISTICAL METHODS Annette governing the insolation, forecasting of solar radiation makes the description of development of the cloud

Heinemann, Detlev

79

NREL Solar Radiation Resource Assessment Project: Status and outlook  

SciTech Connect (OSTI)

This annual report summaries the activities and accomplishments of the Solar Radiation Resource Assessment Project during fiscal year 1992 (1 October to 30 September 1992). Managed by the Analytic Studies Division of the National Renewable Energy Laboratory, this project is the major activity of the US Department of Energy's Resource Assessment Program.

Renne, D.; Maxwell, E.; Stoffel, T.; Marion, B.; Rymes, M.; Wilcox, S.; Myers, D.; Riordan, C.; Hammond, E.; Ismailidis, T.

1993-06-01T23:59:59.000Z

80

SOLAR RADIATION DURABILITY OF MATERIALS, COMPONENTS AND SYSTEMS FOR PHOTOVOLTAICS  

E-Print Network [OSTI]

SOLAR RADIATION DURABILITY OF MATERIALS, COMPONENTS AND SYSTEMS FOR PHOTOVOLTAICS Myles P. Murray 1 exposed photovoltaic materials, is defined as the rate of photodarkening or photobleaching of a material testing. The potential to predict power losses in a photovoltaic system over time caused

Rollins, Andrew M.

Note: This page contains sample records for the topic "normal solar radiation" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


81

Progress on an Updated National Solar Radiation Data Base: Preprint  

SciTech Connect (OSTI)

In 1992, The National Renewable Energy Laboratory (NREL) released the 1961-1990 National Solar Radiation Data Base (NSRDB), a 30-year set of hourly solar radiation data. In April 2003, NREL convened a meeting of experts to investigate issues concerning a proposed update of the NSRDB. The panel determined that an important difficulty posed by the update was the shift from manual to automated cloud observations at National Weather Service stations in the United States. The solar model used in the original NSRDB relied heavily on the methodology and resolution of the manual cloud observations. The meeting participants recommended that NREL produce a plan for creating an update using currently available meteorological observations and satellite imagery. This paper describes current progress toward a plan for an updated NSRDB.

Wilcox, S.; Anderberg, M.; George, R.; Marion, W.; Myers, D.; Renne, D.; Beckman, W.; DeGaetano, A.; Gueymard, C.; Perez, R.; Plantico, M.; Stackhouse, P.; Vignola, F.

2004-03-01T23:59:59.000Z

82

Search for possible solar neutrino radiative decays during total solar eclipses  

E-Print Network [OSTI]

Total solar eclipses (TSEs) offer a good opportunity to look for photons produced in possible radiative decays of solar neutrinos. In this paper we briefly review the physics bases of such searches as well as the existing limits on the neutrino proper lifetimes obtained by such experiments. We the report on the observations performed in occasion of the 29 March 2006 TSE, from Waw an Namos, Libya.

S. Cecchini; D. Centomo; G. Giacomelli; R. Giacomelli; V. Popa

2006-06-16T23:59:59.000Z

83

A comparison of data from SOLMET/ERSATZ and the National Solar Radiation Data Base  

SciTech Connect (OSTI)

This report compares data from the new National Solar Radiation Data Base (NSRDB) with data from the earlier SOLMET/ERSATZ data base. It compares the two data bases, station-by-station, with respect to their long-term average daily values of global horizontal and direct normal solar radiation. We conclude that on an annual basis, NSRDB values for global horizontal radiation are within [plus minus]5% of SOLMET/ERSATZ values for 60% of the stations, more than 5% greater than the SOLMET/ERSATZ values for 30% of the stations, and more than 5% less than the SOLMET/ERSATZ values for 10% of the stations. On an annual basis for direct nominal radiation, the NSRDB values are with [plus minus]5% of the SOLMET/ERSATZ data for only 40% of the stations, more than 5% greater than the SOLMET/ERSATZ values for 45% of the stations, and more than 5% less than the SOLMET/ERSATZ values for 15% of the stations. In general, the NSRDB shows higher values of solar radiation for the eastern United States, particularly the Northeast, and lower values for some of the western states (Arizona, Colorado, Idaho, Nevada, New Mexico, Utah, and Wyoming). However, because some of the stations within a state show higher values of solar radiation while others show lower values, this generalization may be misleading when concerned with a particular station. Consequently, the appendices provide tables showing a station-by-station comparison of the NSRDB and SOLMET/ERSATZ data. In addition to comparing annual values, the tables compare the two data bases for the months of August and December. This comparison shows larger differences between the two data bases for December.

Marion, W.; Myers, D.

1992-11-01T23:59:59.000Z

84

A comparison of data from SOLMET/ERSATZ and the National Solar Radiation Data Base  

SciTech Connect (OSTI)

This report compares data from the new National Solar Radiation Data Base (NSRDB) with data from the earlier SOLMET/ERSATZ data base. It compares the two data bases, station-by-station, with respect to their long-term average daily values of global horizontal and direct normal solar radiation. We conclude that on an annual basis, NSRDB values for global horizontal radiation are within {plus_minus}5% of SOLMET/ERSATZ values for 60% of the stations, more than 5% greater than the SOLMET/ERSATZ values for 30% of the stations, and more than 5% less than the SOLMET/ERSATZ values for 10% of the stations. On an annual basis for direct nominal radiation, the NSRDB values are with {plus_minus}5% of the SOLMET/ERSATZ data for only 40% of the stations, more than 5% greater than the SOLMET/ERSATZ values for 45% of the stations, and more than 5% less than the SOLMET/ERSATZ values for 15% of the stations. In general, the NSRDB shows higher values of solar radiation for the eastern United States, particularly the Northeast, and lower values for some of the western states (Arizona, Colorado, Idaho, Nevada, New Mexico, Utah, and Wyoming). However, because some of the stations within a state show higher values of solar radiation while others show lower values, this generalization may be misleading when concerned with a particular station. Consequently, the appendices provide tables showing a station-by-station comparison of the NSRDB and SOLMET/ERSATZ data. In addition to comparing annual values, the tables compare the two data bases for the months of August and December. This comparison shows larger differences between the two data bases for December.

Marion, W.; Myers, D.

1992-11-01T23:59:59.000Z

85

A spatiotemporal auto-regressive moving average model for solar radiation  

E-Print Network [OSTI]

A spatiotemporal auto-regressive moving average model for solar radiation C.A. Glasbey and D 1). Solar radiation, averaged over ten minute intervals, was recorded at each site for two years otherwise there are too many parameters to be estimated. As we wish to simulate solar radiation on a network

Stone, J. V.

86

Using observations of deep convective systems to constrain atmospheric column absorption of solar radiation in the  

E-Print Network [OSTI]

column absorption of solar radiation (Acol) is a fundamental part of the Earth's energy cycle.e., the Acol values at both regions converge to the same value ($0.27 of the total incoming solar radiation to constrain atmospheric column absorption of solar radiation in the optically thick limit, J. Geophys. Res

Dong, Xiquan

87

Global warming due to increasing absorbed solar radiation Kevin E. Trenberth1  

E-Print Network [OSTI]

Global warming due to increasing absorbed solar radiation Kevin E. Trenberth1 and John T. Fasullo1 from an energy budget standpoint comes from increases in absorbed solar radiation that stem directly. T. Fasullo (2009), Global warming due to increasing absorbed solar radiation, Geophys. Res. Lett

Fasullo, John

88

Impacts of a New Solar Radiation Parameterization on the CPTEC AGCM Climatological Features  

E-Print Network [OSTI]

Impacts of a New Solar Radiation Parameterization on the CPTEC AGCM Climatological Features H. M. J with a new solar radiation scheme are used. There is an 8% increase in the annual mean global average atmo%), which were not considered in the operational solar radiation scheme. Under clear-sky conditions

Barbosa, Henrique

89

IV. STATION CONFIGURATION AND SENSOR COMPARISONS Comparison of solar radiation data gathered at  

E-Print Network [OSTI]

8 IV. STATION CONFIGURATION AND SENSOR COMPARISONS Comparison of solar radiation data gathered of the instruments used to monitor the incident solar radiation. Five types of so- lar sensors and several different data loggers have been used to gather the solar radiation data presented in this data book

Oregon, University of

90

Forecasting of preprocessed daily solar radiation time series using neural networks  

E-Print Network [OSTI]

Forecasting of preprocessed daily solar radiation time series using neural networks Christophe prediction of global solar radiation on a horizontal surface. First results are promising with nRMSE ~ 21 t or at day d and year y d H0 Extraterrestrial solar radiation coefficient for day d [MJ/m²] xt, xd,y Time

Boyer, Edmond

91

SOLAR RADIATION PRESSURE EFFECTS ON VERY HIGH-ECCENTRIC FORMATION J. Fontdecaba Baig1  

E-Print Network [OSTI]

SOLAR RADIATION PRESSURE EFFECTS ON VERY HIGH-ECCENTRIC FORMATION FLYING J. Fontdecaba Baig1 , G. M this particular relative motion is the scoop of this paper. Main perturbation in HEO orbits are solar radiation. Key words: formation flying, HEO orbits, solar radiation pressure. 1. INTRODUCTION Formation flying

Paris-Sud XI, Université de

92

Evaluation of satellite and reanalysis products of downward surface solar radiation over East Asia: Spatial and  

E-Print Network [OSTI]

Evaluation of satellite and reanalysis products of downward surface solar radiation over East Asia Received 29 July 2012; revised 27 February 2013; accepted 18 March 2013. [1] Surface solar radiation plays hydrological models. In this study, the downward surface solar radiation (DSSR) from two satellite products

Dai, Aiguo

93

Multidecadal solar radiation trends in the United States and Germany and direct tropospheric aerosol forcing  

E-Print Network [OSTI]

Multidecadal solar radiation trends in the United States and Germany and direct tropospheric, the positive trend is almost equal. We attained these results by scrutinizing clear-sky global solar radiation ratio of solar radiation were used for constraining the observed trends. Increased absorption

94

794 PHYTOPATHOLOGY Effect of Solar Radiation on Severity of Soybean Rust  

E-Print Network [OSTI]

794 PHYTOPATHOLOGY Mycology Effect of Solar Radiation on Severity of Soybean Rust Heather M. Young., and Marois, J. J. 2012. Effect of solar radiation on disease severity of soybean rust. Phytopathology 102). Although solar radiation can reduce SBR urediniospore survival, limited information is available on how

Schuerger, Andrew C.

95

VALIDATION OF SHORT AND MEDIUM TERM OPERATIONAL SOLAR RADIATION FORECASTS IN THE US  

E-Print Network [OSTI]

VALIDATION OF SHORT AND MEDIUM TERM OPERATIONAL SOLAR RADIATION FORECASTS IN THE US Richard Perez This paper presents an initial validation of a solar radiation service that provides historical, as well observed solar radiation conditions based on immediate measured history: The position and impact of future

Perez, Richard R.

96

THE RESPONSE OF HONEY BEES TO VARIATIONS IN SOLAR RADIATION AND TEMPERATURE  

E-Print Network [OSTI]

THE RESPONSE OF HONEY BEES TO VARIATIONS IN SOLAR RADIATION AND TEMPERATURE Robert M. BURRILL elements, solar radiation and temperature are considered. While these two elements are naturally numbers of departures. In the case of solar radiation intensity, the response is both positive

Paris-Sud XI, Université de

97

Time series modeling and large scale global solar radiation forecasting from geostationary satellites data  

E-Print Network [OSTI]

1 Time series modeling and large scale global solar radiation forecasting from geostationary global solar radiation. In this paper, we use geostationary satellites data to generate 2-D time series of solar radiation for the next hour. The results presented in this paper relate to a particular territory

Paris-Sud XI, Université de

98

2008 European PV Conference, Valencia, Spain COMPARISON OF SOLAR RADIATION FORECASTS FOR THE USA  

E-Print Network [OSTI]

2008 European PV Conference, Valencia, Spain COMPARISON OF SOLAR RADIATION FORECASTS FOR THE USA J models 1 INTRODUCTION Solar radiation and PV production forecasts are becoming increasingly important/) three teams of experts are benchmarking their solar radiation forecast against ground truth data

Perez, Richard R.

99

Satellite-Based Techniques for the Retrieval of Solar Radiation Data A Review of Current European  

E-Print Network [OSTI]

Satellite-Based Techniques for the Retrieval of Solar Radiation Data ­ A Review of Current European of solar radiation (clouds, water vapor, aerosols, ozone) through the use of twelve spectral radiometer of application- specific solar radiation data. Especially the integration into energy structures makes

Heinemann, Detlev

100

Assessing the individual contributions of variations in temperature, solar radiation and precipitation to crop yield  

E-Print Network [OSTI]

Short Title:15 Contributions, Temperature, Solar radiation, Precipitation, Crop yield16 Page 1 of 41 The results showed that year-to-year variations in temperature, solar radiation and precipitation28 in solar radiation showed the strongest isolated impact on simulated yields.34 Its decrease caused

Robertson, Andrew W.

Note: This page contains sample records for the topic "normal solar radiation" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


101

Penetration of solar radiation in the upper ocean: A numerical model for oceanic and coastal waters  

E-Print Network [OSTI]

Penetration of solar radiation in the upper ocean: A numerical model for oceanic and coastal waters in the upper ocean, the vertical distribution of solar radiation (ESR) in the shortwave domain plays (2005), Penetration of solar radiation in the upper ocean: A numerical model for oceanic and coastal

Lee, Zhongping

102

EXPLOITATION OF DISTRIBUTED SOLAR RADIATION DATABASES THROUGH A SMART NETWORK: THE PROJECT SODA  

E-Print Network [OSTI]

EXPLOITATION OF DISTRIBUTED SOLAR RADIATION DATABASES THROUGH A SMART NETWORK: THE PROJECT SODA of industry and research for information on solar radiation parameters with a satisfactory quality as partners in the consortium via the involvement of commercial private vendors of solar radiation databases

Heinemann, Detlev

103

USING LEARNING MACHINES TO CREATE SOLAR RADIATION MAPS FROM NUMERICAL WEATHER PREDICTION MODELS,  

E-Print Network [OSTI]

USING LEARNING MACHINES TO CREATE SOLAR RADIATION MAPS FROM NUMERICAL WEATHER PREDICTION MODELS to develop a methodology to generate solar radiation maps using information from different sources. First with conclusions and next works in the last section. Keywords: Solar Radiation maps, Numerical Weather Predictions

Paris-Sud XI, Université de

104

Analysis of the empirical relations between visible solar radiation, the solar altitude and the transparency of the atmosphere  

E-Print Network [OSTI]

ANALYSIS OF THE EMPIRICAL RELATIONS BETWEEN VISUAL SOLAR RADIATION, THE SOLAR ALTITUDE AND THE TRANSPARENCY OF THE ATMOSPHERE A Thesis A. Garcia Occhipinti Submitted to the Graduate College of the Texas ARM Untverstty in partial fulfillment... of the requirements for the degree of MASTER OF SCIENCE January 1965 Major Subject: Oceanography ANALYSIS OF THE EMPIRICAL RELATIONS BETWEEN VISIBLE SOLAR RADIATION, THE SOLAR ALTITUDE AND THE TRANSPARENCY OF THE ATMOSPHERE A Thesis A. Garcia Occhipinti...

Garcia Occhipinti, Antonio

1965-01-01T23:59:59.000Z

105

Photodegradation effects in materials exposed to high flux solar and solar simulated radiation  

SciTech Connect (OSTI)

This report contains study results about photodegradation effects in materials exposed to high flux solar and solar simulated radiation. The studies show that high flux photoirradiation of materials can result in significant changes in the stability of materials. Photodesorption and photo-enhanced oxidation were determined to be the major mechanisms. These mechanisms were shown to affect, in extremely adverse ways, the expected thermal stability of solar relevant materials, especially stainless steels, (It is expected that related high temperature alloy steels will be similarly affected.) An analytical expression was generated to predict the flux behavior of the steels using {number_sign}304 as a prototypical stainless steel system.

Ignatiev, A. [Houston Univ., TX (United States)

1992-04-01T23:59:59.000Z

106

Photodegradation effects in materials exposed to high flux solar and solar simulated radiation  

SciTech Connect (OSTI)

This report contains study results about photodegradation effects in materials exposed to high flux solar and solar simulated radiation. The studies show that high flux photoirradiation of materials can result in significant changes in the stability of materials. Photodesorption and photo-enhanced oxidation were determined to be the major mechanisms. These mechanisms were shown to affect, in extremely adverse ways, the expected thermal stability of solar relevant materials, especially stainless steels, (It is expected that related high temperature alloy steels will be similarly affected.) An analytical expression was generated to predict the flux behavior of the steels using {number sign}304 as a prototypical stainless steel system.

Ignatiev, A [Houston Univ., TX (United States)

1992-04-01T23:59:59.000Z

107

ENERGY-SPECIFIC SOLAR RADIATION DATA FROM MSG: CURRENT STATUS OF THE HELIOSAT-3 PROJECT  

E-Print Network [OSTI]

ENERGY-SPECIFIC SOLAR RADIATION DATA FROM MSG: CURRENT STATUS OF THE HELIOSAT-3 PROJECT Marion Solar energy technologies such as photovoltaics, solar thermal power plants, passive solar heating and operating of solar energy systems and as basis data set for electricity load forecasting. Both long term

Heinemann, Detlev

108

Passive Sorting of Asteroid Material Using Solar Radiation Pressure  

E-Print Network [OSTI]

Understanding dust dynamics in the vicinity of asteroids is key for future science missions and, in the long-term, for asteroid exploitation. This paper analyzes the feasibility of manipulating asteroid material by means of solar radiation pressure. A novel method is proposed for passively sorting material as a function of its grain size or density, where solar radiation pressure is used as a passive in-situ "mass spectrometer". A simplified analysis shows that in principle this method allows an effective sorting of regolith material. This could have immediate applications for a sample return mission, and for industrial scale in-situ resource utilization to separate and concentrate regolith according to particle size or composition.

Yárnoz, Daniel García; McInnes, Colin R

2014-01-01T23:59:59.000Z

109

Asymptotic normalization coefficients, spectroscopic factors, and direct radiative capture rates  

E-Print Network [OSTI]

of the norms of the overlap function and the radial bound-state wave function are, correspondingly, the spectroscopic factor SlB jB and unity, the single-particle spec- troscopic factor SlB jB (sp) in Eq. ~5! will equal the spectroscopic factor SlB jB... of the radial overlap function is given by Eq. ~3!, and the asymptotic normalization of the radial bound-state wave function is defined as wnBlB jB~r ! ? r.RN blB jB W 2hB ,lB11/2~2kBr ! r . ~6! By the proper choice of SlB jB (sp) , one can make Eq...

Mukhamedzhanov, AM; Gagliardi, Carl A.; Tribble, Robert E.

2001-01-01T23:59:59.000Z

110

NEW SOLAR RADIATION PARAMETERIZATION IN CPTEC/COLA GCM Henrique M. J. Barbosa and Tatiana A. Tarasova  

E-Print Network [OSTI]

NEW SOLAR RADIATION PARAMETERIZATION IN CPTEC/COLA GCM Henrique M. J. Barbosa and Tatiana A The fundamental energy source causing atmospheric motions is the solar radiation absorbed at the Earth's surface solar radiation absorption and consequently overestimates the incident solar radiation at the surface

Barbosa, Henrique

111

Observed reductions of surface solar radiation at Sites in the United States and worldwide from 1961 to 1990  

E-Print Network [OSTI]

Observed reductions of surface solar radiation at Sites in the United States and worldwide from-20146 Hamburg, Germany). ABSTRACT Surface solar radiation revealed an estimated 7W/m2 or 4% decline in solar radiation in the United States can be explained. It is shown that solar radiation declined below

112

Particle acceleration and radiation by direct electric fields in flaring complex solar active regions  

E-Print Network [OSTI]

to connect the energy re- lease process with the acceleration of electrons in solar flares, using a CA modelParticle acceleration and radiation by direct electric fields in flaring complex solar active-Meudon, 92195 Meudon Cedex, FRANCE Abstract The acceleration and radiation of solar energetic particles

Anastasiadis, Anastasios

113

Theoretical study of gas heated in a porous material subjected to a concentrated solar radiation (*)  

E-Print Network [OSTI]

W solar furnace of Solar Energy Laboratory in Odeillo (France). Revue Phys. Appl. 15 (1980) 423-426 MARS423 Theoretical study of gas heated in a porous material subjected to a concentrated solar exposed to the solar radiation. These quantities may be expressed in any set consistent units. 1

Paris-Sud XI, Université de

114

Analytical and experimental determination of radiation and temperature distributions inside solar receivers  

E-Print Network [OSTI]

the cavity are calculated. An air-cooled solar receiver has been set up at a 6 kW solar furnace. Flux solar receivers C. Haziza and D. Blay Laboratoire d'Energétique Solaire, 40, avenue du Recteur Pineau concentrated solar radiation is modelized, using the diffuse and semi-gray surface hypothesis and the net

Paris-Sud XI, Université de

115

OUMBE, Armel, WALD, Lucien, BLANC, Philippe, and SCHROEDTER-HOMSCHEIDT, Marion. Exploitation of radiative transfer model for assessing solar radiation: the relative importance of atmospheric  

E-Print Network [OSTI]

of radiative transfer model for assessing solar radiation: the relative importance of atmospheric constituents, Germany * Corresponding Author, armel.oumbe@ensmp.fr Abstract Solar radiation is modified in its way: solar radiation, atmospheric optics, satellite images, Heliosat method 1. Introduction A wealth

Paris-Sud XI, Université de

116

Improving the reliability and accuracy of a multipyranometer array measuring solar radiation  

E-Print Network [OSTI]

The measurement of solar radiation is crucial for the use of solar energy in fields including power generation, agriculture and meteorology. In the building sciences, It is essential for daylighting studies, energy use calculations, and thermal...

Klima, Peter Miloslaw

2000-01-01T23:59:59.000Z

117

Time series modeling and large scale global solar radiation forecasting from geostationary satellites data  

E-Print Network [OSTI]

When a territory is poorly instrumented, geostationary satellites data can be useful to predict global solar radiation. In this paper, we use geostationary satellites data to generate 2-D time series of solar radiation for the next hour. The results presented in this paper relate to a particular territory, the Corsica Island, but as data used are available for the entire surface of the globe, our method can be easily exploited to another place. Indeed 2-D hourly time series are extracted from the HelioClim-3 surface solar irradiation database treated by the Heliosat-2 model. Each point of the map have been used as training data and inputs of artificial neural networks (ANN) and as inputs for two persistence models (scaled or not). Comparisons between these models and clear sky estimations were proceeded to evaluate the performances. We found a normalized root mean square error (nRMSE) close to 16.5% for the two best predictors (scaled persistence and ANN) equivalent to 35-45% related to ground measurements. F...

Voyant, Cyril; Muselli, Marc; Paoli, Christophe; Nivet, Marie Laure

2014-01-01T23:59:59.000Z

118

National Solar Radiation Data Bases (NSRDB): 1961 to 1990 and 1991 to 2005  

DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

The National Solar Radiation Data Base 1961-1990 (NSRDB) contains 30 years of solar radiation and supplementary meteorological data from 237 NWS sites in the U.S., plus sites in Guam and Puerto Rico. The updated 1991-2005 National Solar Radiation Database holds solar and meteorological data for 1,454 locations in the United States and its territories. See also the interactive data maps for the 1961 to 1990 data at http://rredc.nrel.gov/solar/old_data/nsrdb/1961-1990/redbook/atlas/.

119

University of Texas Panamerican (UTPA): Solar Radiation Lab (SRL); Edinburg, Texas (Data)  

DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

This measurement station monitors global horizontal, direct normal, and diffuse horizontal irradiance to define the amount of solar energy that hits this particular location.

Ramos, J.; Andreas, A.

120

Evaluation of Radiometers in Full-Time Use at the National Renewable Energy Laboratory Solar Radiation Research Laboratory  

SciTech Connect (OSTI)

This report describes the evaluation of the relative performance of the complement of solar radiometers deployed at the National Renewable Energy Laboratory (NREL) Solar Radiation Research Laboratory (SRRL).

Wilcox, S. M.; Myers, D. R.

2008-12-01T23:59:59.000Z

Note: This page contains sample records for the topic "normal solar radiation" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


121

HEMISPHERIC ASYMMETRIES OF SOLAR PHOTOSPHERIC MAGNETISM: RADIATIVE, PARTICULATE, AND HELIOSPHERIC IMPACTS  

SciTech Connect (OSTI)

Among many other measurable quantities, the summer of 2009 saw a considerable low in the radiative output of the Sun that was temporally coincident with the largest cosmic-ray flux ever measured at 1 AU. Combining measurements and observations made by the Solar and Heliospheric Observatory (SOHO) and Solar Dynamics Observatory (SDO) spacecraft we begin to explore the complexities of the descending phase of solar cycle 23, through the 2009 minimum into the ascending phase of solar cycle 24. A hemispheric asymmetry in magnetic activity is clearly observed and its evolution monitored and the resulting (prolonged) magnetic imbalance must have had a considerable impact on the structure and energetics of the heliosphere. While we cannot uniquely tie the variance and scale of the surface magnetism to the dwindling radiative and particulate output of the star, or the increased cosmic-ray flux through the 2009 minimum, the timing of the decline and rapid recovery in early 2010 would appear to inextricably link them. These observations support a picture where the Sun's hemispheres are significantly out of phase with each other. Studying historical sunspot records with this picture in mind shows that the northern hemisphere has been leading since the middle of the last century and that the hemispheric ''dominance'' has changed twice in the past 130 years. The observations presented give clear cause for concern, especially with respect to our present understanding of the processes that produce the surface magnetism in the (hidden) solar interior-hemispheric asymmetry is the normal state-the strong symmetry shown in 1996 was abnormal. Further, these observations show that the mechanism(s) which create and transport the magnetic flux are slowly changing with time and, it appears, with only loose coupling across the equator such that those asymmetries can persist for a considerable time. As the current asymmetry persists and the basal energetics of the system continue to dwindle we anticipate new radiative and particulate lows coupled with increased cosmic-ray fluxes heading into the next solar minimum.

McIntosh, Scott W.; Burkepile, Joan; Miesch, Mark; Markel, Robert S.; Sitongia, Leonard [High Altitude Observatory, National Center for Atmospheric Research, P.O. Box 3000, Boulder, CO 80307 (United States); Leamon, Robert J. [Department of Physics, Montana State University, Bozeman, MT 59717 (United States); Gurman, Joseph B. [Solar Physics Laboratory, NASA Goddard Space Flight Center, Greenbelt, MD 20771 (United States); Olive, Jean-Philippe [Astrium SAS, 6 rue Laurent Pichat, F-75016 Paris (France); Cirtain, Jonathan W.; Hathaway, David H. [Marshall Space Flight Center, Huntsville, AL 35812 (United States)

2013-03-10T23:59:59.000Z

122

Moon's Radiation Environment and Expected Performance of Solar Cells during Future Lunar Missions  

E-Print Network [OSTI]

Several lunar missions are planned ahead and there is an increasing demand for efficient photovoltaic power generation in the moon. The knowledge of solar cell operation in the lunar surface obtained during early seventies need to be updated considering current views on solar variability and emerging space solar cell technologies. In this paper some aspects of the solar cell performance expected under variable lunar radiation environment during future space missions to moon are addressed. We have calculated relative power expected from different types of solar cells under extreme solar proton irradiation conditions and high lunar daytime temperature. It is also estimated that 2-3 % of annual solar cell degradation is most probable during the future lunar missions. We have also discussed photovoltaic power generation in long term lunar bases emphasizing technological needs such as sunlight concentration, solar cell cooling and magnetic shielding of radiation for improving the efficiency of solar cells in the l...

Girish, T E

2010-01-01T23:59:59.000Z

123

Moon's Radiation Environment and Expected Performance of Solar Cells during Future Lunar Missions  

E-Print Network [OSTI]

Several lunar missions are planned ahead and there is an increasing demand for efficient photovoltaic power generation in the moon. The knowledge of solar cell operation in the lunar surface obtained during early seventies need to be updated considering current views on solar variability and emerging space solar cell technologies. In this paper some aspects of the solar cell performance expected under variable lunar radiation environment during future space missions to moon are addressed. We have calculated relative power expected from different types of solar cells under extreme solar proton irradiation conditions and high lunar daytime temperature. It is also estimated that 2-3 % of annual solar cell degradation is most probable during the future lunar missions. We have also discussed photovoltaic power generation in long term lunar bases emphasizing technological needs such as sunlight concentration, solar cell cooling and magnetic shielding of radiation for improving the efficiency of solar cells in the lunar environment.

T. E Girish; S Aranya

2010-12-03T23:59:59.000Z

124

Progress on an Updated National Solar Radiation Data Base for the United States: Preprint  

SciTech Connect (OSTI)

In 1992, The National Renewable Energy Laboratory (NREL) released the 1961-1990 National Solar Radiation Data Base (NSRDB), a 30-year set of hourly solar radiation data. In 2003, NREL undertook an NSRDB update project for the decade of 1991-2000.

Wilcox, S.; Anderberg, M.; George, R.; Marion, W.; Myers, D.; Renne, D.; Beckman, W.; DeGaetano, A.; Gueymard, C.; Perez, R.; Plantico, M.; Stackhouse, P.; Vignola, F.

2005-09-01T23:59:59.000Z

125

Will Geoengineering With Solar Radiation Management Ever Be Used?1 Alan Robock4  

E-Print Network [OSTI]

Will Geoengineering With Solar Radiation Management Ever Be Used?1 2 3 Alan Robock4 5 Department University39 14 College Farm Road40 New Brunswick, NJ 0890141 Phone: 732-881-161042 Fax: 732-932-864443 E will use the term to refer to solar radiation management, ideas about reducing52 incoming sunlight to cool

Robock, Alan

126

Evaluation of solar radiation measurement systems: EPRI/NREL final test report. Volume 1  

SciTech Connect (OSTI)

Measured solar radiation resource data are needed by electric utilities to evaluate the potential of renewable energy options like photovoltaics in their service territory. In this final test report, we document a cooperative project of the Electric Power Research Institute (EPRI) and the National Renewable Energy Laboratory (NREL) to compare available measurement system options for performing solar radiation resource assessments. We present the detailed results of a 6-month field comparison of thermopile-based pyranometer and pyrheliometer solar irradiance measurement systems with two different implementations of the rotating shadowband radiometer (RSR) concept installed at NREL`s Solar Radiation Research Laboratory (SRRL) in Golden, Colorado.

Stoffel, T.; Riordan, C.; Bigger, J.

1992-11-01T23:59:59.000Z

127

Energetic outer radiation-belt electron precipitation during recurrent solar activity  

E-Print Network [OSTI]

on the atmosphere [Seppälä et al., 2004]. During some intense solar storms solar protons in the energy range 1Energetic outer radiation-belt electron precipitation during recurrent solar activity Mark A and Physical Sciences, University of Newcastle, Callaghan, Australia. Russell S. Grew School of Mathematical

Otago, University of

128

Characterization of the solar light field within the ocean mesopelagic zone based on radiative transfer simulations  

E-Print Network [OSTI]

Characterization of the solar light field within the ocean mesopelagic zone based on radiative t The solar light field within the ocean from the sea surface to the bottom of the mesopelagic zone there is sufficient amount of solar light to support the process of photosynthesis, and below by the aphotic

Stramski, Dariusz

129

Solar Radiation Prediction and Energy Allocation for Energy Harvesting Base Stations  

E-Print Network [OSTI]

in rural areas. Now BSs that harvest renewable energy, such as solar and wind, are gradually deployed are powered by solar energy. This reveals the potential of energy harvesting techniques to be applied in ruralSolar Radiation Prediction and Energy Allocation for Energy Harvesting Base Stations Yanan Bao

130

Solar Radiation Monitoring Station (SoRMS): Humboldt State University, Arcata, California (Data)  

DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

A partnership with HSU and U.S. Department of Energy's National Renewable Energy Laboratory (NREL) to collect solar data to support future solar power generation in the United States. The measurement station monitors global horizontal, direct normal, and diffuse horizontal irradiance to define the amount of solar energy that hits this particular location.

Wilcox, S.; Andreas, A.

131

Relationships between inherent optical properties and the depth of penetration of solar radiation in optically complex coastal waters  

E-Print Network [OSTI]

Relationships between inherent optical properties and the depth of penetration of solar radiation optical properties and the depth of penetration of solar radiation in optically complex coastal waters, J

Strathclyde, University of

132

Solar forecasting review  

E-Print Network [OSTI]

and forecasting of solar radiation data: a review,”forecasting of solar- radiation data,” Solar Energy, vol.sequences of global solar radiation data for isolated sites:

Inman, Richard Headen

2012-01-01T23:59:59.000Z

133

Deriving cloud velocity from an array of solar radiation measurements  

E-Print Network [OSTI]

the primary output relevant to solar power variability isQuantifying PV power output variability. Solar Energy 84,power output variability. Clouds cause spatio-temporal variability of solar

Bosch, J.L.; Zheng, Y.; Kleissl, J.

2013-01-01T23:59:59.000Z

134

RAMI4PILPS: An intercomparison of formulations for the partitioning of solar radiation in land surface models  

E-Print Network [OSTI]

RAMI4PILPS: An intercomparison of formulations for the partitioning of solar radiation in land for the partitioning of solar radiation in land surface models, J. Geophys. Res., 116, G02019, doi:10.1029/2010JG001511 [e.g., Zeng et al., 2000; Dai et al., 2004]. The partitioning of solar radiation between

Ni-Meister, Wenge

135

In Vivo Identification of Solar Radiation-Responsive Gene Network: Role of the p38 Stress-Dependent Kinase  

E-Print Network [OSTI]

In Vivo Identification of Solar Radiation-Responsive Gene Network: Role of the p38 Stress Solar radiation is one of the most common threats to the skin, with exposure eliciting a specific 44K) to study epidermis gene expression in vivo in skin exposed to simulated solar radiation (SSR

Paris-Sud XI, Université de

136

Ann. For. Sci. 64 (2007) 899909; DOI: 10.1051/forest:2007072 Multiscale computation of solar radiation for predictive  

E-Print Network [OSTI]

. Solar radiation is a fundamental component of ecological processes, but is poorly used at this scale due to the lack of available data. Here we present a GIS program allowing to calculate solar radiation as well and cloudiness data. Solar radiation measured from 88 meteorological stations used for validation indicated a R

Paris-Sud XI, Université de

137

Absorption of solar radiation by the atmosphere as determined using satellite, aircraft, and surface data during the  

E-Print Network [OSTI]

Absorption of solar radiation by the atmosphere as determined using satellite, aircraft of 0.33 0.04 for the total atmosphere (surface to top). The absorptance of solar radiation estimated more solar radiation than is predicted by theory [e.g., Stephens and Tsay 1990]. Recently, and nearly

Dong, Xiquan

138

Multi-Decadal Solar Radiation Trends in the United States and Germany and Direct Tropospheric Aerosol Forcing  

E-Print Network [OSTI]

Multi-Decadal Solar Radiation Trends in the United States and Germany and Direct Tropospheric.S. the strengthening is almost equal. We attained these results by scrutinizing clear sky global solar radiation of solar radiation were used for constraining the observed trends. Increased absorption and declined light

139

Using remotely sensed solar radiation data for reference1 evapotranspiration estimation at a daily time step2  

E-Print Network [OSTI]

1 Using remotely sensed solar radiation data for reference1 evapotranspiration estimation: +33 5 57 35 07 59. Email: k-van-leeuwen@enitab.fr13 14 15 Abstract16 Solar radiation is an important database, which displays spatialized19 solar radiation data at a daily time step for Europe and Africa

Paris-Sud XI, Université de

140

Statistical correlation between hourly and daily values of solar radiation on horizontal surface at sea level in the Italian climate  

E-Print Network [OSTI]

219- Statistical correlation between hourly and daily values of solar radiation on horizontal- nalières du rayonnement solaire. Abstract. 2014 The knowledge of hourly data of solar radiation is required data measured in Italian stations and propose a method to estimate hourly solar radiation

Boyer, Edmond

Note: This page contains sample records for the topic "normal solar radiation" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


141

Penetration of UV-visible solar radiation in the global oceans: Insights from ocean color remote sensing  

E-Print Network [OSTI]

Penetration of UV-visible solar radiation in the global oceans: Insights from ocean color remote 2013. [1] Penetration of solar radiation in the ocean is determined by the attenuation coefficient (Kd. Lewis, R. Arnone, and R. Brewin (2013), Penetration of UV-visible solar radiation in the global oceans

142

New formulae to evaluate the atmospheric layers of precipitable water and gases, applicable in solar radiation computing models  

E-Print Network [OSTI]

in solar radiation computing models V. B0103descu Energetica, Centrale Electrice, Polytechn. Inst irradiance. In this context, the relatively low density of solar radiation recording stations favoured measurements. Reviews and classifications of the main calculations procedures of solar radiation have been

Paris-Sud XI, Université de

143

Deriving cloud velocity from an array of solar radiation measurements  

E-Print Network [OSTI]

irradiance sensors at the UC San Diego Solar Energy testUCSD Solar Energy Test Bed (UCSD- SETB). The sensors were

Bosch, J.L.; Zheng, Y.; Kleissl, J.

2013-01-01T23:59:59.000Z

144

Static jaw collimation settings to minimize radiation dose to normal brain tissue during stereotactic radiosurgery  

SciTech Connect (OSTI)

At University of Arkansas for Medical Sciences (UAMS) intracranial stereotactic radiosurgery (SRS) is performed by using a linear accelerator with an add-on micromultileaf collimator (mMLC). In our clinical setting, static jaws are automatically adapted to the furthest edge of the mMLC-defined segments with 2-mm (X jaw) and 5-mm (Y jaw) margin and the same jaw values are applied for all beam angles in the treatment planning system. This additional field gap between the static jaws and the mMLC allows additional radiation dose to normal brain tissue. Because a radiosurgery procedure consists of a single high dose to the planning target volume (PTV), reduction of unnecessary dose to normal brain tissue near the PTV is important, particularly for pediatric patients whose brains are still developing or when a critical organ, such as the optic chiasm, is near the PTV. The purpose of this study was to minimize dose to normal brain tissue by allowing minimal static jaw margin around the mMLC-defined fields and different static jaw values for each beam angle or arc. Dose output factors were measured with various static jaw margins and the results were compared with calculated doses in the treatment planning system. Ten patient plans were randomly selected and recalculated with zero static jaw margins without changing other parameters. Changes of PTV coverage, mean dose to predefined normal brain tissue volume adjacent to PTV, and monitor units were compared. It was found that the dose output percentage difference varied from 4.9-1.3% for the maximum static jaw opening vs. static jaw with zero margins. The mean dose to normal brain tissue at risk adjacent to the PTV was reduced by an average of 1.9%, with negligible PTV coverage loss. This dose reduction strategy may be meaningful in terms of late effects of radiation, particularly in pediatric patients. This study generated clinical knowledge and tools to consistently minimize dose to normal brain tissue.

Han, Eun Young, E-mail: eyhan@uams.edu [Department of Radiation Oncology, University of Arkansas for Medical Sciences, Little Rock, AR (United States); Zhang Xin; Yan Yulong; Sharma, Sunil; Penagaricano, Jose [Department of Radiation Oncology, University of Arkansas for Medical Sciences, Little Rock, AR (United States); Moros, Eduardo [Department of Radiation Oncology, Moffitt Cancer Center, Tampa, FL (United States); Corry, Peter [Department of Radiation Oncology, University of Arkansas for Medical Sciences, Little Rock, AR (United States)

2012-01-01T23:59:59.000Z

145

CALIFORNIA SOLAR DATA MANUAL  

E-Print Network [OSTI]

for Daily Solar Radiation Data. Proceedings of the 1977from total horizontal radiation data, they both suffer froma. SOLAR RADIATION Solar radiation data provide a measure of

Berdahl, P.

2010-01-01T23:59:59.000Z

146

Intra-hour Direct Normal Irradiance solar forecasting using genetic programming  

E-Print Network [OSTI]

on an Eppley SMT-3 Solar Tracker. The SMT-3 can orient in aPSP mounted on a SMT-3 Solar Tracker. All of the DNI, GHI

Queener, Benjamin Daniel

2012-01-01T23:59:59.000Z

147

A unified model for radiation-resistance of advanced space solar cells  

SciTech Connect (OSTI)

1-MeV electron irradiation effects on MBE-grown InGaAs and AlGaAs solar cells have been examined in comparison with previous results for radiation damage of InP and GaAs solar cells in order to clarify radiation-resistance of advanced space solar cells. Moreover, 1-MeV electron irradiation results of several space solar cells such as InP, InGaP, InGaAsP, GaAs, AlGaAs, InGaAs, Si, Ge, and CuInSe{sub 2} cells have also been analyzed by considering their damage constants, bandgap energies and optical absorption coefficients. The authors believe that this study will provide a unified model for radiation-resistance of advanced space solar cells.

Yamaguchi, Masafumi [Toyota Technical Inst., Nagoya (Japan); Katsumoto, Shingo [Univ. of Tokyo (Japan); Amano, Chikara [NTT Opto-Electrical Labs., Kanagawa (Japan)

1994-12-31T23:59:59.000Z

148

OVERSTORY-IMPOSED HETEROGENEITY IN SOLAR RADIATION AND SOIL MOISTURE IN A SEMIARID WOODLAND  

E-Print Network [OSTI]

plants and the intercanopy patches that separate them, yielding an overstory with intermediate closure. Field measurements of microclimate at the scale of canopy patches, particularly for near-ground solar radiation and soil moisture, are largely lacking...

Breshears, David D.; Rich, Paul M.; Barnes, Fairley J.; Katherine, Campbell

1997-01-01T23:59:59.000Z

149

A STARMA MODEL FOR SOLAR RADIATION Chris Glasbey & Dave Allcroft  

E-Print Network [OSTI]

stabilizing the intermittency of wind power. If the car has installed solar panel, it may further generate

Glasbey, Chris

152

Passive-solar directional-radiating cooling system  

DOE Patents [OSTI]

A radiative cooling system for use with an ice-making system having a radiating surface aimed at the sky for radiating energy at one or more wavelength bands for which the atmosphere is transparent and a cover thermally isolated from the radiating surface and transparent at least to the selected wavelength or wavelengths, the thermal isolation reducing the formation of condensation on the radiating surface and/or cover and permitting the radiation to continue when the radiating surface is below the dewpoint of the atmosphere, and a housing supporting the radiating surface, cover and heat transfer means to an ice storage reservoir.

Hull, J.R.; Schertz, W.W.

1985-06-27T23:59:59.000Z

153

Passive-solar directional-radiating cooling system  

DOE Patents [OSTI]

A radiative cooling system for use with an ice-making system having a radiating surface aimed at the sky for radiating energy at one or more wavelength bands for which the atmosphere is transparent and a cover thermally isolated from the radiating surface and transparent at least to the selected wavelength or wavelengths, the thermal isolation reducing the formation of condensation on the radiating surface and/or cover and permitting the radiation to continue when the radiating surface is below the dewpoint of the atmosphere, and a housing supporting the radiating surface, cover and heat transfer means to an ice storage reservoir.

Hull, John R. (Hinsdale, IL); Schertz, William W. (Batavia, IL)

1986-01-01T23:59:59.000Z

154

Tuesday, 31 July, 2012 Rapid radiation belt losses occurring during high speed solar wind stream1  

E-Print Network [OSTI]

Tuesday, 31 July, 2012 1 Rapid radiation belt losses occurring during high speed solar wind stream1 Raita11 Sodankylä Geophysical Observatory, University of Oulu, Sodankylä, Finland12 Abstract. Recent geomagnetic disturbances triggered by the arrival of a Solar14 Wind Stream Interface (SWSI). In the current

Otago, University of

155

Are energetic electrons in the solar wind the source of the outer radiation belt?  

E-Print Network [OSTI]

Are energetic electrons in the solar wind the source of the outer radiation belt? Xinlin Li,1 D. N. Mewaldt6 Abstract. Using data from WIND, SAMPEX (Solar, Anomalous, and Magnetospheric Particle Explorer), and the Los Alamos National Laboratory (LANL) sensors onboard geostationary satellites, we investigate

Li, Xinlin

156

Normal Tissue Complication Probability Modeling of Radiation-Induced Hypothyroidism After Head-and-Neck Radiation Therapy  

SciTech Connect (OSTI)

Purpose: To determine the dose-response relationship of the thyroid for radiation-induced hypothyroidism in head-and-neck radiation therapy, according to 6 normal tissue complication probability models, and to find the best-fit parameters of the models. Methods and Materials: Sixty-five patients treated with primary or postoperative radiation therapy for various cancers in the head-and-neck region were prospectively evaluated. Patient serum samples (tri-iodothyronine, thyroxine, thyroid-stimulating hormone [TSH], free tri-iodothyronine, and free thyroxine) were measured before and at regular time intervals until 1 year after the completion of radiation therapy. Dose-volume histograms (DVHs) of the patients' thyroid gland were derived from their computed tomography (CT)-based treatment planning data. Hypothyroidism was defined as increased TSH (subclinical hypothyroidism) or increased TSH in combination with decreased free thyroxine and thyroxine (clinical hypothyroidism). Thyroid DVHs were converted to 2 Gy/fraction equivalent doses using the linear-quadratic formula with {alpha}/{beta} = 3 Gy. The evaluated models included the following: Lyman with the DVH reduced to the equivalent uniform dose (EUD), known as LEUD; Logit-EUD; mean dose; relative seriality; individual critical volume; and population critical volume models. The parameters of the models were obtained by fitting the patients' data using a maximum likelihood analysis method. The goodness of fit of the models was determined by the 2-sample Kolmogorov-Smirnov test. Ranking of the models was made according to Akaike's information criterion. Results: Twenty-nine patients (44.6%) experienced hypothyroidism. None of the models was rejected according to the evaluation of the goodness of fit. The mean dose model was ranked as the best model on the basis of its Akaike's information criterion value. The D{sub 50} estimated from the models was approximately 44 Gy. Conclusions: The implemented normal tissue complication probability models showed a parallel architecture for the thyroid. The mean dose model can be used as the best model to describe the dose-response relationship for hypothyroidism complication.

Bakhshandeh, Mohsen [Department of Medical Physics, Faculty of Medical Sciences, Tarbiat Modares University, Tehran (Iran, Islamic Republic of)] [Department of Medical Physics, Faculty of Medical Sciences, Tarbiat Modares University, Tehran (Iran, Islamic Republic of); Hashemi, Bijan, E-mail: bhashemi@modares.ac.ir [Department of Medical Physics, Faculty of Medical Sciences, Tarbiat Modares University, Tehran (Iran, Islamic Republic of)] [Department of Medical Physics, Faculty of Medical Sciences, Tarbiat Modares University, Tehran (Iran, Islamic Republic of); Mahdavi, Seied Rabi Mehdi [Department of Medical Physics, Faculty of Medical Sciences, Tehran University of Medical Sciences, Tehran (Iran, Islamic Republic of)] [Department of Medical Physics, Faculty of Medical Sciences, Tehran University of Medical Sciences, Tehran (Iran, Islamic Republic of); Nikoofar, Alireza; Vasheghani, Maryam [Department of Radiation Oncology, Hafte-Tir Hospital, Tehran University of Medical Sciences, Tehran (Iran, Islamic Republic of)] [Department of Radiation Oncology, Hafte-Tir Hospital, Tehran University of Medical Sciences, Tehran (Iran, Islamic Republic of); Kazemnejad, Anoshirvan [Department of Biostatistics, Faculty of Medical Sciences, Tarbiat Modares University, Tehran (Iran, Islamic Republic of)] [Department of Biostatistics, Faculty of Medical Sciences, Tarbiat Modares University, Tehran (Iran, Islamic Republic of)

2013-02-01T23:59:59.000Z

157

Solar forecasting review  

E-Print Network [OSTI]

2.1.2 European Solar Radiation Atlas (ESRA)for supplementing solar radiation network data,” FinalEstimating incident solar radiation at the surface from geo-

Inman, Richard Headen

2012-01-01T23:59:59.000Z

158

Beyer H.-G., Czeplak G., Terzenbach U., Wald L., 1997. Assessment of the method used to construct clearness index maps for the new european solar radiation atlas (ESRA). Solar Energy, 61, 6, 389-397.  

E-Print Network [OSTI]

clearness index maps for the new european solar radiation atlas (ESRA). Solar Energy, 61, 6, 389-397. Assessement of the method used to construct clearness index maps for the new European Solar Radiation Atlas of the methods used to construct maps for a new Solar Radiation Atlas for Europe. For this atlas station data

Paris-Sud XI, Université de

159

Solar2014: The 52nd Annual Conference of the Australian Solar Council 1 Open cavity receiver geometry influence on radiative losses  

E-Print Network [OSTI]

, Radiative transfer, Ray tracing. Abstract Open cavity receivers can be used to efficiently absorb concentrated solar radiation and transfers this heat to a Heat Carrier (HC). Recent advances in CSPSolar2014: The 52nd Annual Conference of the Australian Solar Council 1 Open cavity receiver

160

Broadband Model Performance for an Updated National Solar Radiation Database in the United States of America: Preprint  

SciTech Connect (OSTI)

Updated review of broadband model performance in a project being done to update the existing United States National Solar Radiation Database (NSRDB).

Myers, D. R.; Wilcox, S.; Marion, W.; George, R.; Anderberg, M.

2005-09-01T23:59:59.000Z

Note: This page contains sample records for the topic "normal solar radiation" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


161

Effect of Solar Radiation on the Optical Properties and Molecular Composition of Laboratory Proxies of Atmospheric Brown Carbon  

E-Print Network [OSTI]

Effect of Solar Radiation on the Optical Properties and Molecular Composition of Laboratory Proxies A. Nizkorodov*, Department of Chemistry, University of California, Irvine, California 92697, United

Nizkorodov, Sergey

162

Solar irradiance changes and photobiological effects at Earth's surface following astrophysical ionizing radiation events  

E-Print Network [OSTI]

Astrophysical ionizing radiation events have been recognized as a potential threat to life on Earth, primarily through depletion of stratospheric ozone and subsequent increase in surface-level solar ultraviolet radiation. Simulations of the atmospheric effects of a variety of events (such as supernovae, gamma-ray bursts, and solar proton events) have been previously published, along with estimates of biological damage at Earth's surface. In this work, we employed the TUV radiative transfer model to expand and improve calculations of surface-level irradiance and biological impacts following an ionizing radiation event. We considered changes in surface-level UVB, UVA, and photosynthetically active radiation (visible light) for clear-sky conditions and fixed aerosol parameter values. We also considered a wide range of biological effects on organisms ranging from humans to phytoplankton. We found that past work overestimated UVB irradiance, but that relative estimates for increase in exposure to DNA damaging radi...

Thomas, Brian C; Snyder, Brock R

2015-01-01T23:59:59.000Z

163

For the Meyer Fund for Sustainable Development and the University of Oregon Department of Physics and the Solar Radiation Monitoring Laboratory  

E-Print Network [OSTI]

H:PVKitComponents© TableH.1:ContentsofPVKitandpartsrequiredforcomponents Quantity Item Quantity Item 1 Solar panel 1 and the Solar Radiation Monitoring Laboratory

Oregon, University of

164

A link between solar events and congenital malformations: Is ionizing radiation enough to explain it?  

E-Print Network [OSTI]

Cosmic rays are known to cause biological effects directly and through ionizing radiation produced by their secondaries. These effects have been detected in airline crews and other specific cases where members of the population are exposed to above average secondary fluxes. Recent work has found a correlation between solar particle events and congenital malformations. In this work we use the results of computational simulations to approximate the ionizing radiation from such events as well as longer term increases in cosmic ray flux. We find that the amounts of ionizing radiation produced by these events are insufficient to produce congenital malformations under the current paradigm regarding muon ionizing radiation. We believe that further work is needed to determine the correct ionizing radiation contribution of cosmogenic muons. We suggest that more extensive measurements of muon radiation effects may show a larger contribution to ionizing radiation dose than currently assumed.

Overholt, A C; Atri, D

2015-01-01T23:59:59.000Z

165

Parameterization and Analysis of 3-D Solar Radiative Transfer in Clouds: Final Report  

SciTech Connect (OSTI)

This document reports on the research that we have done over the course of our two-year project. The report also covers the research done on this project during a 1 year no-cost extension of the grant. Our work has had two main, inter-related thrusts: The first thrust was to characterize the response of stratocumulus cloud structure and dynamics to systematic changes in cloud infrared radiative cooling and solar heating using one-dimensional radiative transfer models. The second was to couple a three-dimensional (3-D) solar radiative transfer model to the Large Eddy Simulation (LES) model that we use to simulate stratocumulus. The purpose of the studies with 3-D radiative transfer was to examine the possible influences of 3-D photon transport on the structure, evolution, and radiative properties of stratocumulus. While 3-D radiative transport has been examined in static cloud environments, few studies have attempted to examine whether the 3-D nature of radiative absorption and emission influence the structure and evolution of stratocumulus. We undertook this dual approach because only a small number of LES simulations with the 3-D radiative transfer model are possible due to the high computational costs. Consequently, LES simulations with a 1-D radiative transfer solver were used in order to examine the portions of stratocumulus parameter space that may be most sensitive to perturbations in the radiative fields. The goal was then to explore these sensitive regions with LES using full 3-D radiative transfer. Our overall goal was to discover whether 3-D radiative processes alter cloud structure and evolution, and whether this may have any indirect implications for cloud radiative properties. In addition, we collaborated with Dr. Tamas Varni, providing model output fields for his attempt at parameterizing 3-D radiative effects for cloud models.

Jerry Y. Harrington

2012-09-21T23:59:59.000Z

166

National Solar Radiation Data Base (1961-1990). Final technical report. Volume 2  

SciTech Connect (OSTI)

The 1961-1990 National Solar Radiation Data Base (NSRDB) for the United States was completed in September 1992. This was the final product of four years of work under the U.S. Department of Energy (DOE) Solar Radiation Resource Assessment Project. The NSRDB contains 30 years of hourly data for five solar radiation elements and 15 meteorological elements for 239 sites. The user`s manual (NSRDB-Volume 1, 1992) for the NSRDB provides detailed information on the structure of the data base and the products that have been produced from it. Most users of the data base will find all of the information that they need in Volume 1. Volume 2 has been written primarily for researchers who need more information about the methods employed in producing the data base. In addition to research results, we have included information on practical lessons learned from this project. Therefore, Volume 2 should be of value to anyone developing a similar data base for other regions or other countries. Most of the solar radiation data in the NSRDB and the previous SOLMET (SOLar METeorological) data base were generated by computer models. Therefore, a major part of this report is centered around the METeorological/STATistical (METSTAT) model (Section 3.0), its input data (Sections 5.0 and 6.0), its use in producing the NSRDB (Sections 4.0 and 7.0), and comparisons with the models used in producing the SOLMET data base (Section 10.0).

NONE

1995-01-01T23:59:59.000Z

167

The role of water vapor and solar radiation in determining temperature changes and trends measured at Armagh, 18812000  

E-Print Network [OSTI]

The role of water vapor and solar radiation in determining temperature changes and trends measured in atmospheric circulation, are discussed. Citation: Stanhill, G. (2011), The role of water vapor and solar radiation in determining temperature changes and trends measured at Armagh, 1881­2000, J. Geophys. Res., 116

168

Ann. Geophysicae 14, 1051--1059 (1996) EGS --Springer-Verlag 1996 Diffuse solar radiation and associated meteorological  

E-Print Network [OSTI]

received from the sky assumes great importance in problems concerning the utilization of solar energy represents the short- wave energy of solar origin scattered downwards by gas molecules, aerosols (orAnn. Geophysicae 14, 1051--1059 (1996) EGS -- Springer-Verlag 1996 Diffuse solar radiation

Boyer, Edmond

169

A study to determine statistically and empirically the influence of solar radiation on physiological responses of dairy cattle  

E-Print Network [OSTI]

as to st@Is aad osutea4 bgs ( 1957 IHTRQDUCTIOH REVIEU Qy THE LITERATURE General Observations on Clinstic Causes of Cattle Atnospheric Tenperature and Hnnid1ty Solar Radiation Analysis of the Data Analysis of Variance of Body Teaperature Analysis... ~ vtdenee and no ?xtensive research, tho offsets of solar radiation have been assnned to bs of little inportanoe. This study, a pzo]oot of the Southern Regional Dairy Researsh pro- gras, was designed to dotoznine the relative inportnnoo of solar...

Williams, James Stanley

1957-01-01T23:59:59.000Z

170

Rigollier C., Bauer O., Wald L., 2000. On the clear sky model of the 4th European Solar Radiation Atlas with respect to the Heliosat method. Solar Energy, 68(1), 33-48.  

E-Print Network [OSTI]

Rigollier C., Bauer O., Wald L., 2000. On the clear sky model of the 4th European Solar Radiation Paris - Armines 1 ON THE CLEAR SKY MODEL OF THE ESRA - EUROPEAN SOLAR RADIATION ATLAS WITH RESPECT, which has been developed in the framework of the new digital European Solar Radiation Atlas (ESRA

Paris-Sud XI, Université de

171

Rigollier C., Wald L., 1999. The HelioClim Project: from satellite images to solar radiation maps. In Proceedings of the ISES Solar World Congress 1999, Jerusalem, Israel, July 4-9, 1999, volume I, pp 427-431.  

E-Print Network [OSTI]

Rigollier C., Wald L., 1999. The HelioClim Project: from satellite images to solar radiation maps-431. THE HELIOCLIM PROJECT: FROM SATELLITE IMAGES TO SOLAR RADIATION MAPS C. Rigollier, L. Wald Ecole des Mines de such a climatological database of solar radiation, images of the visible channel of the series of Meteosat

Paris-Sud XI, Université de

172

Lecture 3 week 2/3 2012: Solar radiation, the greenhouse, global heat engine  

E-Print Network [OSTI]

....cycles of cold and warm climate. Averaged over the globe, sunlight falling on Earth in July (aphelion) is indeedLecture 3 week 2/3 2012: H 222c Solar radiation, the greenhouse, global heat engine http://en.wikipedia.org/ #12;#12;The 3 streams of this course (see syllabus) 1.Energy forms of energy concentrated, dilute

173

NREL Solar Radiation Resource Assessment Project: Status and outlook. Annual progress report, FY 1992  

SciTech Connect (OSTI)

This annual report summaries the activities and accomplishments of the Solar Radiation Resource Assessment Project during fiscal year 1992 (1 October to 30 September 1992). Managed by the Analytic Studies Division of the National Renewable Energy Laboratory, this project is the major activity of the US Department of Energy`s Resource Assessment Program.

Renne, D.; Maxwell, E.; Stoffel, T.; Marion, B.; Rymes, M.; Wilcox, S.; Myers, D.; Riordan, C.; Hammond, E.; Ismailidis, T.

1993-06-01T23:59:59.000Z

174

Effects of Radiative Diffusion on Thin Flux Tubes in Turbulent Solar-like Convection  

E-Print Network [OSTI]

We study the combined effects of convection and radiative diffusion on the evolution of thin magnetic flux tubes in the solar interior. Radiative diffusion is the primary supplier of heat to convective motions in the lower convection zone, and it results in a heat input per unit volume of magnetic flux tubes that has been ignored by many previous thin flux tube studies. We use a thin flux tube model subject to convection taken from a rotating spherical shell of turbulent, solar-like convection as described by Weber, Fan, and Miesch (2011, Astrophys. J., 741, 11; 2013, Solar Phys., 287, 239), now taking into account the influence of radiative heating on flux tubes of large-scale active regions. Our simulations show that flux tubes of less than or equal to 60 kG subject to solar-like convective flows do not anchor in the overshoot region, but rather drift upward due to the increased buoyancy of the flux tube earlier in its evolution as a result of the inclusion of radiative diffusion. Flux tubes of magnetic fie...

Weber, Maria A

2015-01-01T23:59:59.000Z

175

Absorption of solar radiation by the cloudy atmosphere: Further interpretations of collocated aircraft measurements  

E-Print Network [OSTI]

Absorption of solar radiation by the cloudy atmosphere: Further interpretations of collocated%) of this enhanced cloud absorption occurs at wavelengths 680 nm, and that the observed cloud absorption does stated, the purpose of ARESE was to address the issue of cloud shortwave (SW) absorption. Do clouds

Zender, Charles

176
178

ANALYSIS OF THE CALIFORNIA SOLAR RESOURCE  

E-Print Network [OSTI]

NEEDS FOR SOLAR RADIATION DATA SUMMARY AND DESCRIPTION OFSOURCES OF SOLAR RADIATION DATA CALI FORN IA SOLAR DATA MANNEED FOR SOLAR RADIATION DATA - Made direct contacts with

Berdahl, P.

2011-01-01T23:59:59.000Z

179

Method and apparatus for measuring solar radiation in a vegetative canopy  

DOE Patents [OSTI]

An apparatus and method for measuring solar radiation received in a vegetative canopy. A multiplicity of sensors selectively generates electrical signals in response to impinging photosynthetically active radiation in sunlight. Each sensor is attached to a plant within the canopy and is electrically connected to a separate port in a junction box having a multiplicity of ports. Each port is connected to an operational amplifier. Each amplifier amplifies the signals generated by the sensors. Each amplifier is connected to an analog-to-digital convertor which digitizes each signal. A computer is connected to the convertors and accumulates and stores solar radiation data. A data output device such as a printer is connected to the computer and displays the data.

Gutschick, Vincent P. (Los Alamos, NM); Barron, Michael H. (Los Alamos, NM); Waechter, David A. (Los Alamos, NM); Wolf, Michael A. (Los Alamos, NM)

1987-01-01T23:59:59.000Z

180

Method and apparatus for measuring solar radiation in a vegetative canopy  

DOE Patents [OSTI]

An apparatus and method for measuring solar radiation received in a vegetative canopy. A multiplicity of sensors selectively generates electrical signals in response to impinging photosynthetically active radiation in sunlight. Each sensor is attached to a plant within the canopy and is electrically connected to a separate port in a junction box having a multiplicity of ports. Each port is connected to an operational amplifier. Each amplifier amplifies the signals generated by the sensors. Each amplifier is connected to an analog-to-digital convertor which digitizes each signal. A computer is connected to the convertors and accumulates and stores solar radiation data. A data output device such as a printer is connected to the computer and displays the data.

Gutschick, V.P.; Barron, M.H.; Waechter, D.A.; Wolf, M.A.

1985-04-30T23:59:59.000Z

Note: This page contains sample records for the topic "normal solar radiation" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


181

P.A. Nelson S.M. Kajiura G.S. Losey Exposure to solar radiation may increase ocular UV-filtering  

E-Print Network [OSTI]

P.A. Nelson Ã? S.M. Kajiura Ã? G.S. Losey Exposure to solar radiation may increase ocular UV levels of solar radiation than they had previously experienced in the source habitat in the turbid waters spectrum, but sharks exposed to greater solar radiation showed increased UV blocking in their corneal

Kajiura, Stephen

182

By Stanley Micklavzina, James Utterback and Frank Vignola for the Meyer Fund for Sustainable Development and the University of Oregon Department of Physics and Solar Radiation Monitoring Laboratory  

E-Print Network [OSTI]

Development and the University of Oregon Department of Physics and Solar Radiation Monitoring Laboratory significantly change the incident solar radiation and this will affect the experimental results. The idea, obtains a reading of current from the diffuse solar radiation, light from the sky, ground, surrounding

Oregon, University of

183

Effects of the diurnal cycle in solar radiation on the tropical Indian Ocean mixed layer variability during wintertime Madden-Julian  

E-Print Network [OSTI]

Effects of the diurnal cycle in solar radiation on the tropical Indian Ocean mixed layer September 2013; accepted 6 September 2013; published 3 October 2013. [1] The effects of solar radiation in the main run. The results show that the diurnal cycle of solar radiation generally warms the Indian Ocean

184

Using Satellite Ocean Color Data to Derive an Empirical Model for the Penetration Depth of Solar Radiation (Hp) in the Tropical Pacific Ocean  

E-Print Network [OSTI]

the climate through the penetration depth of solar radiation in the upper ocean (Hp), a primary parameter on penetrative solar radiation in the tropical Pacific, demonstrating the dynamical implication of remotely in which incident solar radiation is absorbed in the mixed layer and the verti- cal penetration down

Chen, .Dake

185

ADVANCES IN ATMOSPHERIC SCIENCES, VOL. 21, NO. 1, 2004, 112 1 A Possible Role of Solar Radiation and Ocean in the  

E-Print Network [OSTI]

ADVANCES IN ATMOSPHERIC SCIENCES, VOL. 21, NO. 1, 2004, 1­12 1 A Possible Role of Solar Radiation to simulate the climate of the mid-Holocene period. The role of the solar radiation and ocean in the mid solar radiation induced by the changed orbital parameters and the changed SST simulated by the OGCM

186

Normal Liver Tissue Density Dose Response in Patients Treated With Stereotactic Body Radiation Therapy for Liver Metastases  

SciTech Connect (OSTI)

Purpose: To evaluate the temporal dose response of normal liver tissue for patients with liver metastases treated with stereotactic body radiation therapy (SBRT). Methods and Materials: Ninety-nine noncontrast follow-up computed tomography (CT) scans of 34 patients who received SBRT between 2004 and 2011 were retrospectively analyzed at a median of 8 months post-SBRT (range, 0.7-36 months). SBRT-induced normal liver tissue density changes in follow-up CT scans were evaluated at 2, 6, 10, 15, and 27 months. The dose distributions from planning CTs were mapped to follow-up CTs to relate the mean Hounsfield unit change ({Delta}HU) to dose received over the range 0-55 Gy in 3-5 fractions. An absolute density change of 7 HU was considered a significant radiographic change in normal liver tissue. Results: Increasing radiation dose was linearly correlated with lower post-SBRT liver tissue density (slope, -0.65 {Delta}HU/5 Gy). The threshold for significant change (-7 {Delta}HU) was observed in the range of 30-35 Gy. This effect did not vary significantly over the time intervals evaluated. Conclusions: SBRT induces a dose-dependent and relatively time-independent hypodense radiation reaction within normal liver tissue that is characterized by a decrease of >7 HU in liver density for doses >30-35 Gy.

Howells, Christopher C.; Stinauer, Michelle A.; Diot, Quentin; Westerly, David C.; Schefter, Tracey E.; Kavanagh, Brian D. [Department of Radiation Oncology, University of Colorado School of Medicine, Aurora, Colorado (United States)] [Department of Radiation Oncology, University of Colorado School of Medicine, Aurora, Colorado (United States); Miften, Moyed, E-mail: Moyed.Miften@ucdenver.edu [Department of Radiation Oncology, University of Colorado School of Medicine, Aurora, Colorado (United States)] [Department of Radiation Oncology, University of Colorado School of Medicine, Aurora, Colorado (United States)

2012-11-01T23:59:59.000Z

187

Effects of solar UV radiation and climate change on biogeochemical cycling: Interactions and feedbacks  

SciTech Connect (OSTI)

Solar UV radiation, climate and other drivers of global change are undergoing significant changes and models forecast that these changes will continue for the remainder of this century. Here we assess the effects of solar UV radiation on biogeochemical cycles and the interactions of these effects with climate change, including feedbacks on climate. Such interactions occur in both terrestrial and aquatic ecosystems. While there is significant uncertainty in the quantification of these effects, they could accelerate the rate of atmospheric CO{sub 2} increase and subsequent climate change beyond current predictions. The effects of predicted changes in climate and solar UV radiation on carbon cycling in terrestrial and aquatic ecosystems are expected to vary significantly between regions. The balance of positive and negative effects on terrestrial carbon cycling remains uncertain, but the interactions between UV radiation and climate change are likely to contribute to decreasing sink strength in many oceanic regions. Interactions between climate and solar UV radiation will affect cycling of elements other than carbon, and so will influence the concentration of greenhouse and ozone-depleting gases. For example, increases in oxygen-deficient regions of the ocean caused by climate change are projected to enhance the emissions of nitrous oxide, an important greenhouse and ozone-depleting gas. Future changes in UV-induced transformations of aquatic and terrestrial contaminants could have both beneficial and adverse effects. Taken in total, it is clear that the future changes in UV radiation coupled with human-caused global change will have large impacts on biogeochemical cycles at local, regional and global scales.

Erickson III, David J [ORNL

2011-01-01T23:59:59.000Z

188

High-temperature photochemical destruction of toxic organic wastes using concentrated solar radiation  

SciTech Connect (OSTI)

Application of concentrated solar energy has been proposed to be a viable waste disposal option. Specifically, this concept of solar induced high-temperature photochemistry is based on the synergistic contribution of concentrated infrared (IR) radiation, which acts as an intense heating source, and near ultraviolet and visible (UV-VIS) radiation, which can induce destructive photochemical processes. Some significant advances have been made in the theoretical framework of high-temperature photochemical processes (Section 2) and development of experimental techniques for their study (Section 3). Basic thermal/photolytic studies have addressed the effect of temperature on the photochemical destruction of pure compounds (Section 4). Detailed studies of the destruction of reaction by-products have been conducted on selected waste molecules (Section 5). Some very limited results are available on the destruction of mixtures (Section 6). Fundamental spectroscopic studies have been recently initiated (Section 7). The results to date have been used to conduct some relatively simple scale-up studies of the solar detoxification process. More recent work has focused on destruction of compounds that do not directly absorb solar radiation. Research efforts have focused on homogeneous as well as heterogeneous methods of initiating destructive reaction pathways (Section 9). Although many conclusions at this point must be considered tentative due to lack of basic research, a clearer picture of the overall process is emerging (Section 10). However, much research remains to be performed and most follow several veins, including photochemical, spectroscopic, combustion kinetic, and engineering scale-up (Section 11).

Dellinger, B.; Graham, J.L.; Berman, J.M.; Taylor, P.H. [Dayton Univ., OH (United States)

1994-05-01T23:59:59.000Z

189

Evolution of Meteorological Base Models for Estimating Hourly Global Solar Radiation in Texas  

E-Print Network [OSTI]

ESL-PA-13-11-01 Available online at www.sciencedirect.com Energy Procedia 00 (2013) 000–000 www.elsevier.com/locate/procedia 2013 ISES Solar World Congress Evaluation of Meteorological Base Models... for Estimating Hourly Global Solar Radiation in Texas Kee Han Kima,b*, Juan-Carlos Baltazarb, and Jeff S. Haberla,b aDepartment of Architecture, Texas A&M University, 3137 TAMU, College Station, TX 77843-3137, U.S.A. bEnergy Systems Laboratory, Texas A...

Kim, H.; Baltazar, J.C.; Haberl, J.S

190

A new correlation between solar energy radiation and some atmospheric parameters  

E-Print Network [OSTI]

The energy balance for an atmospheric layer near the soil is evaluated. By integrating it over the whole day period a linear relationship between the global daily solar radiation incident on a horizontal surface and the product of the sunshine hours at clear sky with the maximum temperature variation in the day is achieved. The results show a comparable accuracy with some well recognized solar energy models such as the \\ang-Prescott one, at least for Mediterranean climatic area. Validation of the result has been performed using old dataset which are almost contemporary and relative to the same sites with the ones used for comparison.

Dumas, Antonio; Bonnici, Maurizio; Madonia, Mauro; Trancossi, Michele

2014-01-01T23:59:59.000Z

191

High-sensitivity observations of solar flare decimeter radiation  

E-Print Network [OSTI]

A new acousto-optic radio spectrometer has observed the 1 - 2 GHz radio emission of solar flares with unprecedented sensitivity. The number of detected decimeter type III bursts is greatly enhanced compared to observations by conventional spectrometers observing only one frequency at the time. The observations indicate a large number of electron beams propagating in dense plasmas. For the first time, we report weak, reversed drifting type III bursts at frequencies above simultaneous narrowband decimeter spikes. The type III bursts are reliable signatures of electron beams propagating downward in the corona, apparently away from the source of the spikes. The observations contradict the most popular spike model that places the spike sources at the footpoints of loops. Conspicuous also was an apparent bidirectional type U burst forming a fish-like pattern. It occurs simultaneously with an intense U-burst at 600-370 MHz observed in Tremsdorf. We suggest that it intermodulated with strong terrestrial interference (cellular phones) causing a spurious symmetric pattern in the spectrogram at 1.4 GHz. Symmetric features in the 1 - 2 GHz range, some already reported in the literature, therefore must be considered with utmost caution.

Arnold O. Benz; Peter Messmer; Christian Monstein

2000-12-05T23:59:59.000Z

192

CALIFORNIA SOLAR DATA MANUAL  

E-Print Network [OSTI]

Estimating Unmeasured Solar Radiation Quantities . . . . . .Weather Data . . . . . , . , . . . . . . . . . .Solar DataB. l'he Solar Constant. . . . . . C. Solar Time and Standard

Berdahl, P.

2010-01-01T23:59:59.000Z

193

Millimeter radiation from a 3D model of the solar atmosphere I. Diagnosing chromospheric thermal structure  

E-Print Network [OSTI]

Aims. We use advanced 3D NLTE radiative magnetohydrodynamic simulations of the solar atmosphere to carry out detailed tests of chromospheric diagnostics at millimeter and submillimeter wavelengths. Methods. We focused on the diagnostics of the thermal structure of the chromosphere in the wavelength bands from 0.4 mm up to 9.6 mm that can be accessed with the Atacama Large Millimeter/Submillimeter Array (ALMA) and investigated how these diagnostics are affected by the instrumental resolution. Results. We find that the formation height range of the millimeter radiation depends on the location in the simulation domain and is related to the underlying magnetic structure. Nonetheless, the brightness temperature is a reasonable measure of the gas temperature at the effective formation height at a given location on the solar surface. There is considerable scatter in this relationship, but this is significantly reduced when very weak magnetic fields are avoided. Our results indicate that although instrumental smearin...

Loukitcheva, Maria; Carlsson, Mats; White, Stephen

2015-01-01T23:59:59.000Z

194

NREL Solar Radiation Research Laboratory (SRRL): Baseline Measurement System (BMS); Golden, Colorado (Data)  

DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

The SRRL was established at the Solar Energy Research Institute (now NREL) in 1981 to provide continuous measurements of the solar resources, outdoor calibrations of pyranometers and pyrheliometers, and to characterize commercially available instrumentation. The SRRL is an outdoor laboratory located on South Table Mountain, a mesa providing excellent solar access throughout the year, overlooking Denver. Beginning with the basic measurements of global horizontal irradiance, direct normal irradiance and diffuse horizontal irradiance at 5-minute intervals, the SRRL Baseline Measurement System now produces more than 130 data elements at 1-min intervals that are available from the Measurement & Instrumentation Data Center Web site. Data sources include global horizontal, direct normal, diffuse horizontal (from shadowband and tracking disk), global on tilted surfaces, reflected solar irradiance, ultraviolet, infrared (upwelling and downwelling), photometric and spectral radiometers, sky imagery, and surface meteorological conditions (temperature, relative humidity, barometric pressure, precipitation, snow cover, wind speed and direction at multiple levels). Data quality control and assessment include daily instrument maintenance (M-F) with automated data quality control based on real-time examinations of redundant instrumentation and internal consistency checks using NREL's SERI-QC methodology. Operators are notified of equipment problems by automatic e-mail messages generated by the data acquisition and processing system. Radiometers are recalibrated at least annually with reference instruments traceable to the World Radiometric Reference (WRR).

Stoffel, T.; Andreas, A.

195

Normal shock solutions to the viscous shock layer equations including thermal, chemical, thermodynamic, and radiative nonequilibrium  

E-Print Network [OSTI]

An existing axisymmetric body viscous shock layer code including chemical, thermal, and thermodynamic nonequilibrium and nonequilibrium radiative gasdynamic coupling is adapted to simulate the one-dimensional flow within a shock tube. A suitable...

Mott, David Ray

1993-01-01T23:59:59.000Z

196

Effects of ionizing radiation on normal and tumor-associated lymphatic vessels  

E-Print Network [OSTI]

Lymphatic vessels play a crucial role in both the pathophysiology of tumors and in the spread cancer cells to lymph nodes. The effects of radiation on these vessels, however, are largely unknown. Here, we seek to describe ...

Lobo, Jennifer D

2007-01-01T23:59:59.000Z

197

Heat transfer performance of an external receiver pipe under unilateral concentrated solar radiation  

SciTech Connect (OSTI)

The heat transfer and absorption characteristics of an external receiver pipe under unilateral concentrated solar radiation are theoretically investigated. Since the heat loss ratio of the infrared radiation has maximum at moderate energy flux, the heat absorption efficiency will first increase and then decrease with the incident energy flux. The local absorption efficiency will increase with the flow velocity, while the wall temperature drops quickly. Because of the unilateral concentrated solar radiation and different incident angle, the heat transfer is uneven along the circumference. Near the perpendicularly incident region, the wall temperature and absorption efficiency slowly approaches to the maximum, while the absorption efficiency sharply drops near the parallelly incident region. The calculation results show that the heat transfer parameters calculated from the average incident energy flux have a good agreement with the average values of the circumference under different boundary conditions. For the whole pipe with coating of Pyromark, the absorption efficiency of the main region is above 85%, and only the absorption efficiency near the parallelly incident region is below 80%. In general, the absorption efficiency of the whole pipe increases with flow velocity rising and pipe length decreasing, and it approaches to the maximum at optimal concentrated solar flux. (author)

Jianfeng, Lu; Jing, Ding [School of Engineering, Sun Yat-Sen University, Guangzhou 510006 (China); Jianping, Yang [Key Laboratory of Enhanced Heat Transfer and Energy Conservation of the Ministry of Education, South China University of Technology, Guangzhou 510640 (China)

2010-11-15T23:59:59.000Z

199

The influence of stratus, stratocumulus, and altocumulus clouds on the spectral distribution of solar radiation over Antarctic waters  

E-Print Network [OSTI]

ON TEE I I ! 1 INFLUENCE OF STRATUS& STRATOCUMULUS, AND ALTOCUMULUS CLOUDS SPECTRAL DISTRIBUTION OF SOLAR RADIATION OVER ANTARCTIC WATERS A Thesis by JAMES EUGENE PETTETT Submitted to the Graduate College of Texas ARM University... in partial fulfillment of the requirements for the MASTER OF SCIENCE degree of August 1973 Major Subjett: Meteorology THE INFLUENCE OF STRATUS, STRATOCUMULUS, AND ALTOCUMULUS CLOUDS ON THE SPECTRAL DISTRIBUTION OF SOLAR RADIATION OVER ANTARCTIC WATERS...

Pettett, James Eugene

1973-01-01T23:59:59.000Z

200

Comparison of Historical Satellite-Based Estimates of Solar Radiation Resources with Recent Rotating Shadowband Radiometer Measurements: Preprint  

SciTech Connect (OSTI)

The availability of rotating shadow band radiometer measurement data at several new stations provides an opportunity to compare historical satellite-based estimates of solar resources with measurements. We compare mean monthly daily total (MMDT) solar radiation data from eight years of NSRDB and 22 years of NASA hourly global horizontal and direct beam solar estimates with measured data from three stations, collected after the end of the available resource estimates.

Myers, D. R.

2009-03-01T23:59:59.000Z

Note: This page contains sample records for the topic "normal solar radiation" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


201

Materials and Processes for Direct Sun-to-Fuel Chemical Transformations Solar radiation can be used to drive heterogeneous electrochemical reactions at the  

E-Print Network [OSTI]

Materials and Processes for Direct Sun-to-Fuel Chemical Transformations Solar radiation can be used and an efficient means for solar radiation delivery and trapping, poses a major challenge to the commercialization material with superior intrinsic properties, but a synergetic and intimately coupled combination of solar

Li, Mo

202

Radiative and climate impacts of absorbing aerosols  

E-Print Network [OSTI]

V. Ramanathan (2008), Solar radiation budget and radiativeV. Ramanathan (2008), Solar radiation budget and radiativeapproximation for solar radiation in the NCAR Community

Zhu, Aihua

2010-01-01T23:59:59.000Z

203

Revised for Journal of Geophysical Research1 Effects of the Diurnal Cycle in Solar Radiation on the2  

E-Print Network [OSTI]

radiation diurnal cycle on intraseasonal mixed layer variability15 in the tropical Indian Ocean during1 Revised for Journal of Geophysical Research1 Effects of the Diurnal Cycle in Solar Radiation on the2 Tropical Indian Ocean Mixed Layer Variability during3 Wintertime Madden-Julian Oscillations4

204

Longitudinal variation of tides in the MLT region: 2. Relative effects of solar radiative and latent heating  

E-Print Network [OSTI]

of solar radiative and latent heating Xiaoli Zhang,1 Jeffrey M. Forbes,1 and Maura E. Hagan2 Received 11 study examines the relative importance of radiative heating and latent heating in accounting (GSWM) and new tidal heating rates derived from International Satellite Cloud Climatology Project (ISCCP

Forbes, Jeffrey

205

Solar Flare Chromospheric Line Emission: Comparison Between IBIS High-resolution Observations and Radiative Hydrodynamic Simulations  

E-Print Network [OSTI]

Solar flares involve impulsive energy release, which results in enhanced radiation in a broad spectral and at a wide height range. In particular, line emission from the chromosphere (lower atmosphere) can provide critical diagnostics of plasma heating processes. Thus, a direct comparison between high-resolution spectroscopic observations and advanced numerical modeling results can be extremely valuable, but has not been attempted so far. We present in this paper such a self-consistent investigation of an M3.0 flare observed by the Dunn Solar Telescope's (DST) Interferometric Bi-dimensional Spectrometer (IBIS) on 2011 September 24 that we have modeled with the radiative hydrodynamic code RADYN (Carlsson & Stein 1992, 1997; Abbett & Hawley 1999; Allred et al. 2005). We obtained images and spectra of the flaring region with IBIS in H$\\alpha$ 6563 \\AA\\ and Ca II 8542 \\AA, and with the Reuven Ramaty High Energy Solar Spectroscope Imager (RHESSI) in X-rays. The latter was used to infer the non-thermal elect...

da Costa, Fatima Rubio; Petrosian, Vahé; Dalda, Alberto Sainz; Liu, Wei

2014-01-01T23:59:59.000Z

206

By Stanley Micklavzina, Asher Tubman, and Frank Vignola for the Meyer Fund for Sustainable Development and the University of Oregon Department of Physics and Solar Radiation Monitoring Laboratory  

E-Print Network [OSTI]

solar cell and light bulb filament. #12;Name: ______________________________________ Kit Development and the University of Oregon Department of Physics and Solar Radiation Monitoring Laboratory as the distance between the solar cell and the lamp changes. The power generated by the solar cell is calculated

Oregon, University of

207

ANALYSIS OF THE CALIFORNIA SOLAR RESOURCE  

E-Print Network [OSTI]

SUMMARY OF USERS' NEEDS FOR SOLAR RADIATION DATA SUMMARY ANDCALIFORNIA SOURCES OF SOLAR RADIATION DATA CALI FORN IADETERMINED NEED FOR SOLAR RADIATION DATA - Made direct

Berdahl, P.

2011-01-01T23:59:59.000Z

208

Gschwind Benot, Lionel Mnard, Thierry Ranchin, Lucien Wald, Paul Stackhouse, 2007. A proposal for a thesaurus for web services in solar radiation. In Proceedings EnviroInfo 2007, O. Hryniewicz, J. Studzinski and M. Romaniuk (Eds), Shaker Verlag,  

E-Print Network [OSTI]

for a thesaurus for web services in solar radiation. In Proceedings EnviroInfo 2007, O. Hryniewicz, J. Studzinski in Solar Radiation Benoît Gschwind1 , Lionel Ménard1 , Thierry Ranchin1 , Lucien Wald1 and Paul Stackhouse2 energies. This communication focuses on solar energy and more specifically on aspects in solar radiation

Boyer, Edmond

209

Analysis of Gamma Radiation from a Radon Source: Indications of a Solar Influence  

E-Print Network [OSTI]

This article presents an analysis of about 29,000 measurements of gamma radiation associated with the decay of radon in a sealed container at the Geological Survey of Israel (GSI) Laboratory in Jerusalem between 28 January 2007 and 10 May 2010. These measurements exhibit strong variations in time of year and time of day, which may be due in part to environmental influences. However, time-series analysis reveals a number of periodicities, including two at approximately 11.2 year$^{-1}$ and 12.5 year$^{-1}$. We have previously found these oscillations in nuclear-decay data acquired at the Brookhaven National Laboratory (BNL) and at the Physikalisch-Technische Bundesanstalt (PTB), and we have suggested that these oscillations are attributable to some form of solar radiation that has its origin in the deep solar interior. A curious property of the GSI data is that the annual oscillation is much stronger in daytime data than in nighttime data, but the opposite is true for all other oscillations. This may be a systematic effect but, if it is not, this property should help narrow the theoretical options for the mechanism responsible for decay-rate variability.

Peter A. Sturrock; Gideon Steinitz; Ephraim Fischbach; Daniel Javorsek, II; Jere H. Jenkins

2012-05-01T23:59:59.000Z

210

Analyzing and simulating the variability of solar irradiance and solar PV powerplants  

E-Print Network [OSTI]

of Tracking for Capturing Solar Radiation in the ContinentalTime Scales of the Surface Solar Radiation Field, Journal ofof Tracking for Capturing Solar Radiation in the Continental

Lave, Matthew S.

2012-01-01T23:59:59.000Z

211

Neutral interstellar hydrogen in the inner heliosphere under influence of wavelength-dependent solar radiation pressure  

E-Print Network [OSTI]

We study the influence of the non-flat shape of the solar Lyman-alpha line on the distribution of neutral interstellar hydrogen in the inner heliosphere and assess importance of this effect for interpretation of heliospheric in situ measurements. Based on available data, construct a model of evolution of the solar Lyman-alpha line profile with solar activity. Modify an existing test-particle code calculating distribution of neutral interstellar hydrogen in the inner heliosphere to take into account the dependence of radiation pressure on radial velocity. Discrepancies between the classical and Doppler models appear at ~ 5 AU and increase towards the Sun from a few percent to a factor of 1.5 at 1 AU. The classical model overestimates density everywhere except a ~ 60 deg cone around the downwind direction, where a density deficit appears. The magnitude of discrepancies depends appreciably on the phase of solar cycle, but only weakly on the parameters of the gas at the termination shock. For in situ measurements of neutral atoms performed at ~ 1 AU, as those planned for IBEX, the Doppler correction will need to be taken into account, because the modifications include both the magnitude and direction of the local flux by a few km/s and degree, which, when unaccounted for, would bring an error of a few degrees and a few km/s in determination of the bulk velocity vector at the termination shock. The Doppler correction is appreciable for in situ observations of neutral H populations and their derivatives performed a few AU from the Sun.

S. Tarnopolski; M. Bzowski

2008-04-21T23:59:59.000Z

212

Solar Central Receiver with an Irising Aperture  

E-Print Network [OSTI]

. If the aperture is small, it will be inefficient for periods when the solar isolation is inclined due to spillage. However, if the aperture is large, it will be inefficient for periods when the solar isolation is normal, due to excess heat radiation and convection...

Galal, T.; Kulaib, A. M.; Abuzaid, M.

2010-01-01T23:59:59.000Z

213

Solar forecasting review  

E-Print Network [OSTI]

2.1.2 European Solar Radiation Atlas (ESRA)2.4 Evaluation of Solar Forecasting . . . . . . . . .2.4.1 Solar Variability . . . . . . . . . . . . .

Inman, Richard Headen

2012-01-01T23:59:59.000Z

214

PROCEEDINGS O F THE IEEE, VOL.56, NO. 1, JANUARY196837 [`I J. J. Wysocki,"Lithium-doped radiation-resistant silicon solar  

E-Print Network [OSTI]

,"Lithium-doped radiation-resistant silicon solar cells," IEEE Trans. Nuclear Science. vol.NS-13, pp. 168-173, December 1966 damagein semiconductorsXI1: Effects ofhighenergy electrons in silicon and silicon solar cells," Contract NAS 5-3805, May 25, 1966. 14] R. V. Tauke, "Thermal annealing of irradiated n-on-p silicon solar cells

Teich, Malvin C.

215

For the Meyer Fund for Sustainable Development and the University of Oregon Department of Physics and the Solar Radiation Monitoring Laboratory  

E-Print Network [OSTI]

://www.californiasolarcenter.org/history_pv.html http://www.eere.energy.gov/basics/renewable_energy/solar.html http://www.nrel.gov/ncpv/ http://www.fsec.ucf.edu/en/education/index.htm http://www.nrel.gov/data/pix/searchpix.html http://www.ases.org/ http://www.seia.org/cs/about_solar_energy and the Solar Radiation Monitoring Laboratory

Oregon, University of

216

Radiation damage in biomimetic dye molecules for solar cells Peter L. Cook, Phillip S. Johnson, Xiaosong Liu, An-Li Chin, and F. J. Himpsela  

E-Print Network [OSTI]

Radiation damage in biomimetic dye molecules for solar cells Peter L. Cook, Phillip S. Johnson for biomimetic dye molecules for solar cells phthalocyanines and for a biological analog the charge transfer carriers in a solar cell. © 2009 American Institute of Physics. doi:10.1063/1.3267849 I. INTRODUCTION

Himpsel, Franz J.

217

SOLAR ENERGY FOR ACADEMIC INSTITUTIONS Solar Suitability Assessment  

E-Print Network [OSTI]

SOLAR ENERGY FOR ACADEMIC INSTITUTIONS Solar Suitability Assessment of Dalhousie University.................................................................................................. 2 2.2 Solar Radiation Data for Calculating Solar Energy Resource .................... 3 3 Campus.1 Evaluation of Suitability for Solar Energy Generation................................ 12 4.2 Solar

Brownstone, Rob

218

A new parameterization of canopy spectral response to incident solar radiation: case study with hyperspectral data from pine dominant forest  

E-Print Network [OSTI]

A new parameterization of canopy spectral response to incident solar radiation: case study, FIN-00014 Helsinki, Finland c Finnish Forest Research Institute, Suonenjoki Research Station, FIN-77600 Suonenjoki, Finland d VTT Automation, Remote Sensing Group, FIN-02044 VTT, Finland Received 27

Myneni, Ranga B.

219

PAPER www.rsc.org/pps | Photochemical & Photobiological Sciences Alteration of chromophoric dissolved organic matter by solar UV radiation  

E-Print Network [OSTI]

the lagoon that were incubated in the pre-exposed water for 5 h in the dark. Cell abundance, activity dissolved organic matter by solar UV radiation causes rapid changes in bacterial community composition We evaluated the effect of photochemical alterations of chromophoric dissolved organic matter (CDOM

Sommaruga, Ruben

220

Optimum fixed orientations and benefits of tracking for capturing solar radiation in the continental United States  

E-Print Network [OSTI]

a two-axis tracking solar panel. Figure 5b: Map of theand azimuth angles for solar panels were calculated for aannual azimuth for a solar panel, and can be combined with

Lave, Matthew; Kleissl, Jan

2011-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "normal solar radiation" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


221

Proceedings of Eurosun 2004, published by PSE GmbH, Freiburg, Germany, pp. (3) 916-920, 2004 HelioClim: a long-term database on solar radiation for  

E-Print Network [OSTI]

Clim: a long-term database on solar radiation for Europe and Africa S. Cros, M. Albuisson, M. Lefèvre, C-series of solar radiation data. Daily irradiation values are available over Europe, Africa and Atlantic Ocean stations only. INTRODUCTION Time series of solar radiation at ground level open the way to many

Paris-Sud XI, Université de

222

Lefvre M., Cros S., Albuisson M., Wald L., 2003. Developing a database using Meteosat data for the de-livery of solar radiation assessments at ground level. In Proceedings of the 23rd EARSeL Annual Symposium  

E-Print Network [OSTI]

for the de- livery of solar radiation assessments at ground level. In Proceedings of the 23rd EARSeL Annual, Meteosat, solar radiation, climatology, database, information system ABSTRACT: An information system, called HelioClim, is offered for answering the needs for long-term time-series of solar radiation data

Paris-Sud XI, Université de

223

Bois B., Wald L., Pieri P., Van Leeuwen C., Commagnac L., Chery Ph., Christen M., Gaudillre J.-P., Saur E., Estimating spatial and temporal variations in solar radiation within bordeaux winegrowing region using remotely  

E-Print Network [OSTI]

.-P., Saur E., Estimating spatial and temporal variations in solar radiation within bordeaux winegrowing-25, 2008. ESTIMATING SPATIAL AND TEMPORAL VARIATIONS IN SOLAR RADIATION WITHIN BORDEAUX WINEGROWING REGION presents a study solar radiation spatial and temporal variations in Bordeaux winegrowing area, for a 20

Paris-Sud XI, Université de

224

Sri M., Huld T., Dunlop E.D., Albuisson M., Lefvre M., Wald L., 2007. Uncertainties in photovoltaic electricity yield prediction from fluctuation of solar radiation. Proceedings of the 22nd  

E-Print Network [OSTI]

in photovoltaic electricity yield prediction from fluctuation of solar radiation. Proceedings of the 22nd European ELECTRICITY YIELD PREDICTION FROM FLUCTUATION OF SOLAR RADIATION Marcel Súri1 , Thomas Huld1 , Ewan D. Dunlop1Clim, PVGIS, solar radiation, interannual variability, PV yield prediction 1 INTRODUCTION Photovoltaic (PV

Boyer, Edmond

225

Cros S., Wald L., 2003. Survey of the main databases providing solar radiation data at ground level. In Proceedings of the 23rd EARSeL Annual Symposium "Remote Sensing in Transition", 2-4 June 2003, Ghent,  

E-Print Network [OSTI]

Cros S., Wald L., 2003. Survey of the main databases providing solar radiation data at ground level providing solar radiation data at the ground level S. Cros & L. Wald Remote Sensing and Modeling Group, Ecole des Mines de Paris, France Keywords: solar radiation, database, information system, climatology

Paris-Sud XI, Université de

226

AGRICULTURAL AND FOREST METEOROLOGY 14 8 ( 20 0 8 ) 1 6 9 6 1 7 0 6; doi:10.1016/j.agrformet.2008.06.001 Efficient assessment of topographic solar radiation to improve  

E-Print Network [OSTI]

.06.001 Efficient assessment of topographic solar radiation to improve plant distribution models Christian Piedallu of solar radiation for decades but have difficulty measuring it on plots. Proxies recorded on the ground topographic solar radiation, from the simplest ones (proxies based on slope, and sine or cosine transformed

Paris-Sud XI, Université de

227

IEEE JOURNAL OF SELECTED TOPICS IN APPLIED EARTH OBSERVATIONS AND REMOTE SENSING, VOL. 7, NO. 5, MAY 2014 1745 The HelioClim-1 Database of Daily Solar Radiation  

E-Print Network [OSTI]

, MAY 2014 1745 The HelioClim-1 Database of Daily Solar Radiation at Earth Surface: An Example Abstract--The HelioClim-1 database contains daily values of the solar radiation reaching the ground and accurate knowledge of the solar radiation and its daily, seasonal and annual variations over recent years

Boyer, Edmond

228

Gschwind B., Mnard L., Albuisson M., Wald L., 2005. Three years of experience with the SoDa web service delivering solar radiation information: lessons learned and perspectives. In Proceedings of the 19th  

E-Print Network [OSTI]

service delivering solar radiation information: lessons learned and perspectives. In Proceedings of the 19 of experience with the SoDa web service delivering solar radiation information: lessons learned and perspectives Benoît Gschwind, Lionel Ménard, Michel Albuisson and Lucien Wald1 Abstract Information on solar radiation

Paris-Sud XI, Université de

229

Rigollier C., Lefvre M., Cros S., Wald L., 2003, Heliosat 2: an improved method for the mapping of the solar radiation from Meteosat imagery. In Proceedings of the 2002 EUMETSAT Meteorological Satellite  

E-Print Network [OSTI]

of the solar radiation from Meteosat imagery. In Proceedings of the 2002 EUMETSAT Meteorological Satellite. HELIOSAT 2: AN IMPROVED METHOD FOR THE MAPPING OF THE SOLAR RADIATION FROM METEOSAT IMAGERY C. Rigollier, M INTRODUCTION Mapping solar radiation at the ground level is an important issue for several applications

Paris-Sud XI, Université de

230

Effects of solar radiation on manganese oxide reactions with selected organic compounds  

SciTech Connect (OSTI)

The effects of sunlight on aqueous redox reactions between manganese oxides (MnO{sub x}) and selected organic substances are reported. No sunlight-induced rate enhancement was observed for the MnO{sub x} oxidation of substituted phenols, anisole, o-dichlorobenzene, or p-chloroaniline. On the other hand, solar radiation did accelerate the reduction of manganese oxides by dissolved organic matter (DOM) from aquatic environments. The photoreduction of MnO{sub x} by DOM was little affected by molecular oxygen in air-saturated water (250 {mu}M), but was inhibited by 2,6-dichloroindophenol (0.5-6 {mu}M), and excellent electron acceptor. MnO{sub x} reduction also was photosensitized by anthraquinone-2-sulfonate. These results indicate that the photoreduction probably involves electron transfer from excited states of sorbed DOM to the oxide surface. Wavelength studies indicated that ultraviolet-B radiation (280-320 nm) plays an important role in this photoreduction.

Bertino, D.J.; Zepp, R.G. (Environmental Protection Agency, Athens, GA (United States))

1991-07-01T23:59:59.000Z

231

Regional Normal Lung Tissue Density Changes in Patients Treated With Stereotactic Body Radiation Therapy for Lung Tumors  

SciTech Connect (OSTI)

Purpose: To describe regional lung tissue density changes in normal lung tissue of patients with primary and metastatic lung tumors who received stereotactic body radiation therapy (SBRT). Methods and Materials: A total of 179 post-SBRT follow-up computed tomography (CT) scans of 62 patients who received SBRT between 2003 and 2009 were studied. Median prescription dose was 54 Gy (range, 30-60 Gy) in 3 to 5 fractions. SBRT-induced lung density changes on post-SBRT follow-up CT were evaluated at approximately 3, 6, 12, 18, 24, and 30 months after treatment. Dose-response curves (DRC) were generated for SBRT-induced lung damage by averaging CT number (HU) changes for regions of the lungs receiving the same dose at 5-Gy intervals. Results: For all follow-up interval periods, CT numbers linearly increased with dose until 35 Gy and were constant thereafter. For 3, 18, 24, and 30 months, the rate of relative electron density increase with dose was approximately 0.24% per Gy. At 6 months, the rate was also similar below 20 Gy but then rose to 0.6% per Gy above this threshold. After 6 months, DRCs were mostly time-independent. When split between patients treated with 3 fractions of 12 to 20 Gy (median, 20 Gy; average tumor volume, 12 {+-} 16 cm{sup 3}) and with >3 fractions of 6 to 12.5 Gy (median, 9 Gy; average tumor volume, 30 {+-} 40 cm{sup 3}), DRCs differed significantly. In both cases, CT changes at 3, 18, 24, and 30 months were identical to those of the population DRC; however, patients who received >3 fractions showed 6-month CT changes that were more than twice those for the group that received 3 fractions. Conclusions: This analysis of SBRT-induced normal lung density changes indicates that lung normal tissue has more pronounced self-limited acute effects than late effects. Differences in acute CT changes following treatments in 3 fractions were considerably less than for treatments in >3 fractions.

Diot, Quentin, E-mail: quentin.diot@ucdenver.edu [Department of Radiation Oncology, University of Colorado School of Medicine, Aurora, Colorado (United States)] [Department of Radiation Oncology, University of Colorado School of Medicine, Aurora, Colorado (United States); Kavanagh, Brian; Schefter, Tracey; Gaspar, Laurie; Stuhr, Kelly; Miften, Moyed [Department of Radiation Oncology, University of Colorado School of Medicine, Aurora, Colorado (United States)] [Department of Radiation Oncology, University of Colorado School of Medicine, Aurora, Colorado (United States)

2012-11-15T23:59:59.000Z

232

IX. IMPACT OF AEROSOLS FROM THE ERUPTION OF EL CHICHN ON BEAM RADIATION IN THE PACIFIC NORTHWEST  

E-Print Network [OSTI]

measured on clear days the effects of normal climatic differences are avoided. Solar radiation data taken of following this procedure for the clear day solar noon global radiation is shown in Fig. 21. The data shown27 IX. IMPACT OF AEROSOLS FROM THE ERUPTION OF EL CHICHÃ?N ON BEAM RADIATION IN THE PACIFIC

Oregon, University of

233

The prostaglandin E{sub 1} analog, misoprostol, a normal tissue protector, does not protect four murine tumors in vivo from radiation injury  

SciTech Connect (OSTI)

The clinical development of radioprotectors, such as misoprostol, to protect normal tissue during cancer treatment must proceed with the assurance that tumors are not protected similarly or significantly. To provide data on this critical question, radiation-induced growth delay with or without the presence of misoprostol was measured in four murine tumors grown in the flanks of mice: the Lewis lung carcinoma, M-5076 ovarian sarcoma, FSA and NFSA. The effect of misoprostol on the tumor control dose (TCD{sub 50}) of radiation was measured in FSA-bearing mice with or without prior treatment with the nonsteroidal anti-inflammatory agent, indomethacin. Misoprostol did not influence the in vivo growth of any of the four tumors, nor did it protect any of the tumors from radiation-induced growth delay. Likewise, there was no increase in the radiation TCD{sub 50} to treat the FSA in vivo in control or indomethacin-treated tumor-bearing mice. To measure any possible influence of tumor burden on the protective effect of miso-prostol on normal tissue in mice, the protective effect of misoprostol on the survival of intestinal clonogenic cells was measured in M-5076-bearing mice and found to be the same as in non-tumor-bearing mice. These data suggest that misoprostol protects normal tissue in mice without protecting at least four experimental murine tumors. The data support the contention that misoprostol can achieve therapeutic gain by protecting normal tissues without protecting tumors. 44 refs., 5 figs., 1 tab.

Hanson, W.R.; Zhen, W.; Geng, L. [Loyola Univ. Chicago and Hines Veterans Administration Medical Centers, Hines, IL (United States)] [and others

1995-06-01T23:59:59.000Z

234

Analysis of the California Solar Resource--Volume 3: Appendices  

E-Print Network [OSTI]

FOR DAILY SOLAR RADIATION DATA ABSTRACT Daily totala corrected solar radiation data base for 19 locations infor Daily Solar Radiation Data Appendix A SUMMARIES OF

erdahl, P.

2011-01-01T23:59:59.000Z

235

Research Needs: Glass Solar Reflectance and Vinyl Siding  

E-Print Network [OSTI]

properties of reflected solar radiation from glass surfaces,transfer at the siding surface. Direct solar radiation tosiding, reflected solar radiation from nearby surfaces,

Hart, Robert

2012-01-01T23:59:59.000Z

236

SOLAR RADIATION PRESSURE AND LOCAL INTERSTELLAR MEDIUM FLOW PARAMETERS FROM INTERSTELLAR BOUNDARY EXPLORER LOW ENERGY HYDROGEN MEASUREMENTS  

SciTech Connect (OSTI)

Neutral hydrogen atoms that travel into the heliosphere from the local interstellar medium (LISM) experience strong effects due to charge exchange and radiation pressure from resonant absorption and re-emission of Ly?. The radiation pressure roughly compensates for the solar gravity. As a result, interstellar hydrogen atoms move along trajectories that are quite different than those of heavier interstellar species such as helium and oxygen, which experience relatively weak radiation pressure. Charge exchange leads to the loss of primary neutrals from the LISM and the addition of new secondary neutrals from the heliosheath. IBEX observations show clear effects of radiation pressure in a large longitudinal shift in the peak of interstellar hydrogen compared with that of interstellar helium. Here, we compare results from the Lee et al. interstellar neutral model with IBEX-Lo hydrogen observations to describe the distribution of hydrogen near 1 AU and provide new estimates of the solar radiation pressure. We find over the period analyzed from 2009 to 2011 that radiation pressure divided by the gravitational force (?) has increased slightly from ? = 0.94 ± 0.04 in 2009 to ? = 1.01 ± 0.05 in 2011. We have also derived the speed, temperature, source longitude, and latitude of the neutral H atoms and find that these parameters are roughly consistent with those of interstellar He, particularly when considering the filtration effects that act on H in the outer heliosheath. Thus, our analysis shows that over the period from 2009 to 2011, we observe signatures of neutral H consistent with the primary distribution of atoms from the LISM and a radiation pressure that increases in the early rise of solar activity.

Schwadron, N. A.; Moebius, E.; Kucharek, H.; Lee, M. A.; French, J. [University of New Hampshire, Durham, NH 03824 (United States); Saul, L.; Wurz, P. [University of Bern, 3012 Bern (Switzerland); Bzowski, M. [Space Research Centre of the Polish Academy of Sciences, Warsaw (Poland); Fuselier, S. A.; Livadiotis, G.; McComas, D. J. [Southwest Research Institute, San Antonio, TX 78228 (United States); Frisch, P. [University of Chicago, Chicago, IL 60637 (United States); Gruntman, M. [University of Southern California, Los Angeles, CA 90089 (United States); Mueller, H. R. [Dartmouth College, Hanover, NH 03755 (United States)

2013-10-01T23:59:59.000Z

237

The Impact of Solar Particle Events on Radiation Risk for Human Explorers of Mars  

E-Print Network [OSTI]

Solar System, it is likely to see strong competition from various nations and private industry. China

Gorguinpour, Camron Saul

2010-01-01T23:59:59.000Z

238

Final Report for Annex II--Assessment of Solar Radiation Resources In Saudi Arabia, 1998-2000  

SciTech Connect (OSTI)

The Final Report for Annex II - Assessment of Solar Radiation Resources in Saudi Arabia 1998-2000 summarizes the accomplishment of work performed, results achieved, and products produced under Annex II, a project established under the Agreement for Cooperation in the Field of Renewable Energy Research and Development between the Kingdom of Saudi Arabia and the United States. The report covers work and accomplishments from January 1998 to December 2000. A previous progress report, Progress Report for Annex II - Assessment of Solar Radiation Resources in Saudi Arabia 1993-1997, NREL/TP-560-29374, summarizes earlier work and technical transfer of information under the project. The work was performed in at the National Renewable Energy Laboratory (NREL) in Golden, Colorado, at the King Abdulaziz City for Science and Technology (KACST) in Riyadh, Saudi Arabia, and at selected weather stations of the Saudi Meteorological and Environmental Protection Administration (MEPA).

Myers, D. R.; Wilcox, S. M.; Marion, W. F.; Al-Abbadi, N. M.; Mahfoodh, M.; Al-Otaibi, Z.

2002-04-01T23:59:59.000Z

239

Solar Rights  

Broader source: Energy.gov [DOE]

Cities and counties in North Carolina generally may not adopt ordinances prohibiting the installation of "a solar collector that gathers solar radiation as a substitute for traditional energy for...

240

Radiative Impacts on the Growth of Drops within Simulated Marine Stratocumulus. Part I: Maximum Solar Heating  

E-Print Network [OSTI]

November 2004) ABSTRACT The effects of solar heating and infrared cooling on the vapor depositional growth of as much as 45 min. Including infrared cooling as well as solar heating in the LES and microphysical bin Solar Heating CHRISTOPHER M. HARTMAN AND JERRY Y. HARRINGTON Department of Meteorology, The Pennsylvania

Harrington, Jerry Y.

Note: This page contains sample records for the topic "normal solar radiation" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


241

Solar Radiative Heating in First Year Sea Ice M.J. McGuinness 1 , K.A. Landman 2 , H.J. Trodahl 3 , A.E. Pantoja 3  

E-Print Network [OSTI]

Solar Radiative Heating in First Year Sea Ice M.J. McGuinness 1 , K.A. Landman 2 , H.J. Trodahl 3 ice show daily oscillations consistent with heating by solar radiation. We present and solve a heat for solar power absorption based on Monte Carlo scatter­ ing simulations of penetrating photons. We observe

242

High-Temperature Processing of Solids Through Solar Nebular Bow Shocks: 3D Radiation Hydrodynamics Simulations with Particles  

E-Print Network [OSTI]

A fundamental, unsolved problem in Solar System formation is explaining the melting and crystallization of chondrules found in chondritic meteorites. Theoretical models of chondrule melting in nebular shocks has been shown to be consistent with many aspects of thermal histories inferred for chondrules from laboratory experiments; but, the mechanism driving these shocks is unknown. Planetesimals and planetary embryos on eccentric orbits can produce bow shocks as they move supersonically through the disk gas, and are one possible source of chondrule-melting shocks. We investigate chondrule formation in bow shocks around planetoids through 3D radiation hydrodynamics simulations. A new radiation transport algorithm that combines elements of flux-limited diffusion and Monte Carlo methods is used to capture the complexity of radiative transport around bow shocks. An equation of state that includes the rotational, vibrational, and dissociation modes of H$_2$ is also used. Solids are followed directly in the simulati...

Boley, A C; Desch, S J

2013-01-01T23:59:59.000Z

243

Forecasting of preprocessed daily solar radiation time series using neural networks  

SciTech Connect (OSTI)

In this paper, we present an application of Artificial Neural Networks (ANNs) in the renewable energy domain. We particularly look at the Multi-Layer Perceptron (MLP) network which has been the most used of ANNs architectures both in the renewable energy domain and in the time series forecasting. We have used a MLP and an ad hoc time series pre-processing to develop a methodology for the daily prediction of global solar radiation on a horizontal surface. First results are promising with nRMSE {proportional_to} 21% and RMSE {proportional_to} 3.59 MJ/m{sup 2}. The optimized MLP presents predictions similar to or even better than conventional and reference methods such as ARIMA techniques, Bayesian inference, Markov chains and k-Nearest-Neighbors. Moreover we found that the data pre-processing approach proposed can reduce significantly forecasting errors of about 6% compared to conventional prediction methods such as Markov chains or Bayesian inference. The simulator proposed has been obtained using 19 years of available data from the meteorological station of Ajaccio (Corsica Island, France, 41 55'N, 8 44'E, 4 m above mean sea level). The predicted whole methodology has been validated on a 1.175 kWc mono-Si PV power grid. Six prediction methods (ANN, clear sky model, combination..) allow to predict the best daily DC PV power production at horizon d + 1. The cumulated DC PV energy on a 6-months period shows a great agreement between simulated and measured data (R{sup 2} > 0.99 and nRMSE < 2%). (author)

Paoli, Christophe; Muselli, Marc; Nivet, Marie-Laure [University of Corsica, CNRS UMR SPE, Corte (France); Voyant, Cyril [University of Corsica, CNRS UMR SPE, Corte (France); Hospital of Castelluccio, Radiotherapy Unit, Ajaccio (France)

2010-12-15T23:59:59.000Z

244

Solar UV radiation exposure of seamen - Measurements, calibration and model calculations of erythemal irradiance along ship routes  

SciTech Connect (OSTI)

Seamen working on vessels that go along tropical and subtropical routes are at risk to receive high doses of solar erythemal radiation. Due to small solar zenith angles and low ozone values, UV index and erythemal dose are much higher than at mid-and high latitudes. UV index values at tropical and subtropical Oceans can exceed UVI = 20, which is more than double of typical mid-latitude UV index values. Daily erythemal dose can exceed the 30-fold of typical midlatitude winter values. Measurements of erythemal exposure of different body parts on seamen have been performed along 4 routes of merchant vessels. The data base has been extended by two years of continuous solar irradiance measurements taken on the mast top of RV METEOR. Radiative transfer model calculations for clear sky along the ship routes have been performed that use satellite-based input for ozone and aerosols to provide maximum erythemal irradiance and dose. The whole data base is intended to be used to derive individual erythemal exposure of seamen during work-time.

Feister, Uwe [German Meteorological Service, Meteorological Observatory Lindenberg - Richard-Assmann-Observatory, Am Observatorium 12, 15848 Lindenberg (Germany); Meyer, Gabriele; Kirst, Ulrich [German Social Accident Insurance Institution for Transport and Traffic, Ottenser Hauptstrasse 54, 22765 Hamburg (Germany)

2013-05-10T23:59:59.000Z

245

PSW1-C0.2-D0.1-E2.4-F0.1-PSRB2-0021-02 SOLAR WIND-DRIVEN ELECTRON RADIATION BELT  

E-Print Network [OSTI]

linear filters, to remove unwanted "col- ored noise" from solar wind and radiation belt electron data output might be achieved with: 1) additional simultaneous solar wind inputs; 2) more sophisticated quality of solar, solar-wind, and magnetospheric data that has become available in recent years has led

246

38Name ________________________________ Solar Proton Events can cause satellite damage and produce harmful radiation  

E-Print Network [OSTI]

the solar panels 10% larger to they produce 4900 watts at launch. By the end of 2004, the power will have38Name ________________________________ Solar Proton Events can cause satellite damage and produce the SPEs between 1997 and 2004 with intensities greater than 300 pico-Flux Units (pFU). Study this table

247

SOLAR RADIATION ESTIMATION AND PREDICTION USING MEASURED AND PREDICTED AEROSOL OPTICAL DEPTH (AOD)  

E-Print Network [OSTI]

influence on electric power generation by Concentrated Solar Power (CSP) systems. Therefore, precise evaluation of DNI is required for planning CSP systems at specific locations. Given the inherent difficulty management in stand-alone photovoltaic (PV) systems, building control systems, solar thermal power plant

Paris-Sud XI, Université de

248

Long range heliostat target using array of normal incidence pyranometers to evaluate a beam of solar radiation  

DOE Patents [OSTI]

Various technologies described herein pertain to evaluating a beam reflected by a heliostat. A portable target that has an array of sensors mounted thereupon is configured to capture the beam reflected by the heliostat. The sensors in the array output measured values indicative of a characteristic of the beam reflected by the heliostat. Moreover, a computing device can generate and output data corresponding to the beam reflected by the heliostat based on the measured values indicative of the characteristic of the beam received from the sensors in the array.

Ghanbari, Cheryl M; Ho, Clifford K; Kolb, Gregory J

2014-03-04T23:59:59.000Z

249

Modeling the radiation belt electrons with radial diffusion driven by the solar wind  

E-Print Network [OSTI]

in the enhancement of radiation belt electrons yet leaves a significant portion of the variance unaccounted for. We

Li, Xinlin

250

SOLAR ENERGY PROGRAM. CHAPTER FROM THE ENERGY AND ENVIRONMENT ANNUAL REPORT 1978  

E-Print Network [OSTI]

operation of a solar radiation data collection network inimplementation of a solar radiation data collection networka high quality solar radiation data base for well-located

authors, Various

2011-01-01T23:59:59.000Z

251

NEW Fe IX LINE IDENTIFICATIONS USING SOLAR AND HELIOSPHERIC OBSERVATORY/SOLAR ULTRAVIOLET MEASUREMENT OF EMITTED RADIATION AND HINODE/EIS JOINT OBSERVATIONS OF THE QUIET SUN  

SciTech Connect (OSTI)

In this work, we study joint observations of Hinode/EUV Imaging Spectrometer (EIS) and Solar and Heliospheric Observatory/Solar Ultraviolet Measurement of Emitted Radiation of Fe IX lines emitted by the same level of the high energy configuration 3s {sup 2}3p {sup 5}4p. The intensity ratios of these lines are dependent on atomic physics parameters only and not on the physical parameters of the emitting plasma, so that they are excellent tools to verify the relative intensity calibration of high-resolution spectrometers that work in the 170-200 A and 700-850 A wavelength ranges. We carry out extensive atomic physics calculations to improve the accuracy of the predicted intensity ratio, and compare the results with simultaneous EIS-SUMER observations of an off-disk quiet Sun region. We were able to identify two ultraviolet lines in the SUMER spectrum that are emitted by the same level that emits one bright line in the EIS wavelength range. Comparison between predicted and measured intensity ratios, wavelengths and energy separation of Fe IX levels confirms the identifications we make. Blending and calibration uncertainties are discussed. The results of this work are important for cross-calibrating EIS and SUMER, as well as future instrumentation.

Landi, E.; Young, P. R. [Naval Research Laboratory, Space Science Division, Washington, DC 20375 (United States)

2009-12-20T23:59:59.000Z

252

Towards high efficiency thin-film crystalline silicon solar cells: The roles of light trapping and non-radiative recombinations  

SciTech Connect (OSTI)

Thin-film solar cells based on silicon have emerged as an alternative to standard thick wafers technology, but they are less efficient, because of incomplete absorption of sunlight, and non-radiative recombinations. In this paper, we focus on the case of crystalline silicon (c-Si) devices, and we present a full analytic electro-optical model for p-n junction solar cells with Lambertian light trapping. This model is validated against numerical solutions of the drift-diffusion equations. We use this model to investigate the interplay between light trapping, and bulk and surface recombination. Special attention is paid to surface recombination processes, which become more important in thinner devices. These effects are further amplified due to the textures required for light trapping, which lead to increased surface area. We show that c-Si solar cells with thickness of a few microns can overcome 20% efficiency and outperform bulk ones when light trapping is implemented. The optimal device thickness in presence of light trapping, bulk and surface recombination, is quantified to be in the range of 10–80??m, depending on the bulk quality. These results hold, provided the effective surface recombination is kept below a critical level of the order of 100?cm/s. We discuss the possibility of meeting this requirement, in the context of state-of-the-art techniques for light trapping and surface passivation. We show that our predictions are within the capability of present day silicon technologies.

Bozzola, A., E-mail: angelo.bozzola@unipv.it; Kowalczewski, P.; Andreani, L. C. [Physics Department, University of Pavia and CNISM, via Bassi 6, I-27100 Pavia (Italy)

2014-03-07T23:59:59.000Z

253

A preliminary study of the linear relationship between monthly averaged daily solar radiation and daily thermal amplitude in the north of Buenos Aires provence  

E-Print Network [OSTI]

Using irradiance and temperature measurements obtained at the Facultad Regional San Nicol\\'as of UTN, we performed a preliminary study of the linear relationship between monthly averaged daily solar radiation and daily thermal amplitude. The results show a very satisfactory adjustment (R = 0.848, RMS = 0.066, RMS% = 9.690 %), even taking into account the limited number of months (36). Thus, we have a formula of predictive nature, capable of estimating mean monthly solar radiation for various applications. We expect to have new data sets to expand and improve the statistical significance of these results.

Cionco, R; Rodriguez, R

2012-01-01T23:59:59.000Z

254

Neutral interstellar hydrogen in the inner heliosphere under the influence of wavelength-dependent solar radiation pressure  

E-Print Network [OSTI]

With the plethora of detailed results from heliospheric missions and at the advent of the first mission dedicated IBEX, we have entered the era of precision heliospheric studies. Interpretation of these data require precision modeling, with second-order effects quantitatively taken into account. We study the influence of the non-flat shape of the solar Ly-alpha line on the distribution of neutral interstellar H in the inner heliosphere. Based on available data, we (i) construct a model of evolution for the solar Ly-alpha line profile with solar activity, (ii) modify an existing test-particle code used to calculate the distribution of neutral interstellar H in the inner heliosphere so that it takes the dependence of radiation pressure on radial velocity into account, and (iii) compare the results of the old and new version. Discrepancies between the classical and Doppler models appear between ~5 and ~3 AU and increase towards the Sun from a few percent to a factor of 1.5 at 1 AU. The classical model overestimates the density everywhere except for a ~60-degr cone around the downwind direction, where a density deficit appears. The magnitude of the discrepancies appreciably depends on the phase of the solar cycle, but only weakly on the parameters of the gas at the termination shock. For in situ measurements of neutral atoms performed at ~1 AU, the Doppler correction will need to be taken into account, because the modifications include both the magnitude and direction of the local flux by a few km/s and degrees, respectively, which, when unaccounted for, would introduce an error of a few km/s and degrees in determination of the magnitude and direction of the bulk velocity vector at the termination shock.

S. Tarnopolski; M. Bzowski

2008-12-04T23:59:59.000Z

255

HIGH-TEMPERATURE PROCESSING OF SOLIDS THROUGH SOLAR NEBULAR BOW SHOCKS: 3D RADIATION HYDRODYNAMICS SIMULATIONS WITH PARTICLES  

SciTech Connect (OSTI)

A fundamental, unsolved problem in solar system formation is explaining the melting and crystallization of chondrules found in chondritic meteorites. Theoretical models of chondrule melting in nebular shocks have been shown to be consistent with many aspects of thermal histories inferred for chondrules from laboratory experiments; but, the mechanism driving these shocks is unknown. Planetesimals and planetary embryos on eccentric orbits can produce bow shocks as they move supersonically through the disk gas, and are one possible source of chondrule-melting shocks. We investigate chondrule formation in bow shocks around planetoids through three-dimensional radiation hydrodynamics simulations. A new radiation transport algorithm that combines elements of flux-limited diffusion and Monte Carlo methods is used to capture the complexity of radiative transport around bow shocks. An equation of state that includes the rotational, vibrational, and dissociation modes of H{sub 2} is also used. Solids are followed directly in the simulations and their thermal histories are recorded. Adiabatic expansion creates rapid cooling of the gas, and tail shocks behind the embryo can cause secondary heating events. Radiative transport is efficient, and bow shocks around planetoids can have luminosities ?few× 10{sup –8} L{sub ?}. While barred and radial chondrule textures could be produced in the radiative shocks explored here, porphyritic chondrules may only be possible in the adiabatic limit. We present a series of predicted cooling curves that merit investigation in laboratory experiments to determine whether the solids produced by bow shocks are represented in the meteoritic record by chondrules or other solids.

Boley, A. C. [Department of Astronomy, University of Florida, 211 Bryant Space Science Center, Gainesville, FL 32611 (United States); Morris, M. A. [Center for Meteorite Studies, Arizona State University, P.O. Box 876004, Tempe, AZ 88287-6004 (United States); Desch, S. J. [School of Earth and Space Exploration, Arizona State University, P.O. Box 871404, Tempe, AZ 85287-1404 (United States)

2013-10-20T23:59:59.000Z

256

A Multi-Model Assessment of Regional Climate Disparities Caused by Solar Geoengineering  

E-Print Network [OSTI]

1 A Multi-Model Assessment of Regional Climate Disparities Caused by Solar Geoengineering Normal University, Beijing, China. 9 School of Engineering and Applied Sciences, Harvard University levels. G1 involves a reduction in solar irradiance to counteract the radiative forcing5 in abrupt4xCO2

Robock, Alan

257

Forcings and feedbacks in the GeoMIP ensemble for a reduction in solar  

E-Print Network [OSTI]

to better understand the impact of solar radiation management on the energy budget. In spite of their veryForcings and feedbacks in the GeoMIP ensemble for a reduction in solar irradiance and increase, Beijing Normal University, Beijing, China, 7 Met Office Hadley Centre, Exeter, UK, 8 Atmospheric Sciences

Robock, Alan

258

SchroedterHomscheidt M., Betcke J., Breitkreuz H., Hammer A., Heinemann D., Petrack S., HolzerPopp T., Wald L., 2006. Energyspecific solar radiation data from MSG: The Heliosat3 project. In Proceedings of the 3rd  

E-Print Network [OSTI]

de Paris ABSTRACT Solar energy technologies such as photovoltaics, solar thermal power plants MSG RAO Workshop, Helsinki : Finland (2006)" #12;Figure 2. Hourly effective energy production (solidPopp T., Wald L., 2006. Energyspecific solar radiation data from MSG: The Heliosat3 project

Paris-Sud XI, Université de

259

Analyzing and simulating the variability of solar irradiance and solar PV powerplants  

E-Print Network [OSTI]

of minute solar radiation data, Solar Energy, 55 (1995) 21-0.1? National Solar Radiation Data Base (NSRDB-SUNY) cellsa month of 1 minute radiation data from 11 sites over 75 x

Lave, Matthew S.

2012-01-01T23:59:59.000Z

260

Note: Calibration of EBT3 radiochromic film for measuring solar ultraviolet radiation  

SciTech Connect (OSTI)

Solar (UVA + UVB) exposure was assessed using the Gafchromic EBT3 film. The coloration change was represented by the net reflective optical density (Net ROD). Through calibrations against a UV-tube lamp, operational relationships were obtained between Net ROD and the (UVA + UVB) exposures (in J?cm{sup ?2} or J?m{sup ?2}). The useful range was from ?0.2 to ?30 J?cm{sup ?2}. The uniformity of UV irradiation was crucial for an accurate calibration. For solar exposures ranging from 2 to 11 J?cm{sup ?2}, the predicted Net ROD agreed with the recorded values within 9%, while the predicted exposures agreed with the recorded values within 15%.

Chun, S. L. [Department of Physics and Materials Science, City University of Hong Kong, Kowloon Tong (Hong Kong); Yu, P. K. N., E-mail: peter.yu@cityu.edu.hk [Department of Physics and Materials Science, City University of Hong Kong, Kowloon Tong (Hong Kong); State Key Laboratory in Marine Pollution, City University of Hong Kong, Kowloon Tong (Hong Kong)

2014-10-15T23:59:59.000Z

Note: This page contains sample records for the topic "normal solar radiation" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


261

Prediction of radiation-induced liver disease by Lyman normal-tissue complication probability model in three-dimensional conformal radiation therapy for primary liver carcinoma  

SciTech Connect (OSTI)

Purpose: To describe the probability of RILD by application of the Lyman-Kutcher-Burman normal-tissue complication (NTCP) model for primary liver carcinoma (PLC) treated with hypofractionated three-dimensional conformal radiotherapy (3D-CRT). Methods and Materials: A total of 109 PLC patients treated by 3D-CRT were followed for RILD. Of these patients, 93 were in liver cirrhosis of Child-Pugh Grade A, and 16 were in Child-Pugh Grade B. The Michigan NTCP model was used to predict the probability of RILD, and then the modified Lyman NTCP model was generated for Child-Pugh A and Child-Pugh B patients by maximum-likelihood analysis. Results: Of all patients, 17 developed RILD in which 8 were of Child-Pugh Grade A, and 9 were of Child-Pugh Grade B. The prediction of RILD by the Michigan model was underestimated for PLC patients. The modified n, m, TD{sub 5} (1) were 1.1, 0.28, and 40.5 Gy and 0.7, 0.43, and 23 Gy for patients with Child-Pugh A and B, respectively, which yielded better estimations of RILD probability. The hepatic tolerable doses (TD{sub 5}) would be MDTNL of 21 Gy and 6 Gy, respectively, for Child-Pugh A and B patients. Conclusions: The Michigan model was probably not fit to predict RILD in PLC patients. A modified Lyman NTCP model for RILD was recommended.

Xu ZhiYong [Department of Radiation Oncology, Fudan University Cancer Hospital, Shanghai (China); Department of Oncology, Shanghai Medical School, Fudan University, Shanghai (China); Liang Shixiong [Department of Radiation Oncology, Fudan University Cancer Hospital, Shanghai (China); Department of Radiation Oncology, Cancer Hospital, Guangxi Medical University, Nanning (China); Zhu Ji [Department of Radiation Oncology, Fudan University Cancer Hospital, Shanghai (China); Department of Oncology, Shanghai Medical School, Fudan University, Shanghai (China); Zhu Xiaodong [Department of Radiation Oncology, Cancer Hospital, Guangxi Medical University, Nanning (China); Zhao Jiandong [Department of Radiation Oncology, Fudan University Cancer Hospital, Shanghai (China); Department of Oncology, Shanghai Medical School, Fudan University, Shanghai (China); Lu Haijie [Department of Radiation Oncology, Cancer Hospital, Guangxi Medical University, Nanning (China); Yang Yunli [Department of Radiation Oncology, Cancer Hospital, Guangxi Medical University, Nanning (China); Chen Long [Department of Radiation Oncology, Cancer Hospital, Guangxi Medical University, Nanning (China); Wang Anyu [Department of Radiation Oncology, Cancer Hospital, Guangxi Medical University, Nanning (China); Fu Xiaolong [Department of Radiation Oncology, Fudan University Cancer Hospital, Shanghai (China); Department of Oncology, Shanghai Medical School, Fudan University, Shanghai (China); Jiang Guoliang [Department of Radiation Oncology, Fudan University Cancer Hospital, Shanghai (China) and Department of Oncology, Shanghai Medical School, Fudan University, Shanghai (China)]. E-mail: jianggl@21cn.com

2006-05-01T23:59:59.000Z

262

Axion mechanism of Sun luminosity and TSI variations: light shining through the solar radiation zone  

E-Print Network [OSTI]

It is shown that the hypothesis of the axion mechanism of Sun luminosity suggesting that the solar axion-like particles are born in the core of the Sun and may be efficiently converted back into $\\gamma$-quanta in the magnetic field of the solar overshoot tachocline is physically relevant. As a result, it is also shown that the intensity variations of the $\\gamma$-quanta of axion origin, induced by the magnetic field variations in the tachocline, directly cause the Sun luminosity and total solar irradiance (TSI) variations and eventually characterize the active and quiet states of the Sun. Within the framework of this mechanism estimations of the strength of the axion coupling to a photon ($g_{a \\gamma} = 7.2 \\cdot 10^{-11} GeV^{-1}$) and the axion-like particle mass ($m_a \\sim 10^{-5} eV$) have been obtained. It is also shown that the claimed axion parameters do not contradict any known experimental and theoretical model-independent limitations.

Rusov, V D; Sharf, I V; Eingorn, M V; Smolyar, V P; Vlasenko, D S; Zelentsova, T N; Linnik, E P; Beglaryan, M E

2014-01-01T23:59:59.000Z

263

By Asher Tubman for the Meyer Fund for Sustainable Development and the University of Oregon Department of Physics and Solar Radiation Monitoring Laboratory  

E-Print Network [OSTI]

Department of Physics and Solar Radiation Monitoring Laboratory Page F.1 6/20/2011 Appendix F: Review of PV Panels Labs These kits were used for the first year of a two IB physics class used primarily as a followup/ reinforcement/ application of an electrical circuits unit. I would like

Oregon, University of

264

US/French Joint Research Program regarding the behavior of polymer base materials subjected to beta radiation. Volume 1. Phase-1 normalization results  

SciTech Connect (OSTI)

As part of the ongoing multi-year joint NRC/CEA international cooperative test program to investigate the dose-damage equivalence of gamma and beta radiation on polymer base materials, dosimetry and ethylene-propylene rubber (EPR) specimens were exchanged, irradiated, and evaluated for property changes at research facilities in the US (Sandia National Laboratories) and France (Compagnie ORIS Industrie). The purpose of this Phase-1 test series was to normalize and cross-correlate the results obtained by one research center to the other, in terms of exposure (1.0 MeV accelerated electrons and /sup 60/Co gammas) and postirradiation testing (ultimate elongation and tensile strength, hardness, and density) techniques. The dosimetry and material specimen results indicate good agreement between the two countries regarding the exposure conditions and postirradiation evaluation techniques employed.

Wyant, F.J.; Buckalew, W.H.; Chenion, J.; Carlin, F.; Gaussens, G.; Le Tutour, P.; Le Meur, M.

1986-06-01T23:59:59.000Z

265

Diffusion Tensor Imaging of Normal-Appearing White Matter as Biomarker for Radiation-Induced Late Delayed Cognitive Decline  

SciTech Connect (OSTI)

Purpose: To determine whether early assessment of cerebral white matter degradation can predict late delayed cognitive decline after radiotherapy (RT). Methods and Materials: Ten patients undergoing conformal fractionated brain RT participated in a prospective diffusion tensor magnetic resonance imaging study. Magnetic resonance imaging studies were acquired before RT, at 3 and 6 weeks during RT, and 10, 30, and 78 weeks after starting RT. The diffusivity variables in the parahippocampal cingulum bundle and temporal lobe white matter were computed. A quality-of-life survey and neurocognitive function tests were administered before and after RT at the magnetic resonance imaging follow-up visits. Results: In both structures, longitudinal diffusivity ({lambda}{sub Double-Vertical-Line }) decreased and perpendicular diffusivity ({lambda}{sub Up-Tack }) increased after RT, with early changes correlating to later changes (p < .05). The radiation dose correlated with an increase in cingulum {lambda}{sub Up-Tack} at 3 weeks, and patients with >50% of cingula volume receiving >12 Gy had a greater increase in {lambda}{sub Up-Tack} at 3 and 6 weeks (p < .05). The post-RT changes in verbal recall scores correlated linearly with the late changes in cingulum {lambda}{sub Double-Vertical-Line} (30 weeks, p < .02). Using receiver operating characteristic curves, early cingulum {lambda}{sub Double-Vertical-Line} changes predicted for post-RT changes in verbal recall scores (3 and 6 weeks, p < .05). The neurocognitive test scores correlated significantly with the quality-of-life survey results. Conclusions: The correlation between early diffusivity changes in the parahippocampal cingulum and the late decline in verbal recall suggests that diffusion tensor imaging might be useful as a biomarker for predicting late delayed cognitive decline.

Chapman, Christopher H., E-mail: chchap@umich.edu [Department of Radiation Oncology, University of Michigan Medical School, Ann Arbor, MI (United States); Nagesh, Vijaya [Department of Radiation Oncology, University of Michigan Medical School, Ann Arbor, MI (United States); Sundgren, Pia C. [Department of Radiology, University of Michigan Medical School, Ann Arbor, MI (United States); Department of Radiology, Skane University Hospital, Lund (Sweden); Buchtel, Henry [Department of Psychiatry, University of Michigan Medical School, Ann Arbor, MI (United States); Veterans Affairs Ann Arbor Healthcare System, Ann Arbor, MI (United States); Chenevert, Thomas L. [Department of Radiology, University of Michigan Medical School, Ann Arbor, MI (United States); Junck, Larry [Department of Neurology, University of Michigan Medical School, Ann Arbor, MI (United States); Lawrence, Theodore S.; Tsien, Christina I. [Department of Radiation Oncology, University of Michigan Medical School, Ann Arbor, MI (United States); Cao, Yue [Department of Radiation Oncology, University of Michigan Medical School, Ann Arbor, MI (United States); Department of Radiology, University of Michigan Medical School, Ann Arbor, MI (United States)

2012-04-01T23:59:59.000Z

266

An Improved Multipyranometer Array for the Measurement of Direct and Diffuse Solar Radiation  

E-Print Network [OSTI]

array (MPA). The earliest work on an MPA related device for measuring diffuse sky radiation was performed in Finland by M. H2milllien et al. (1985). Further development on the MPA was performed in several countries including the United States where...

Munger, B.; Haberl, J. S.

1994-01-01T23:59:59.000Z

267

ESTIMATING GROUND-LEVEL SOLAR RADIATION AND EVAPOTRANSPIRATION IN PUERTO RICO  

E-Print Network [OSTI]

REMOTE SENSING Eric. W. Harmsen1 , John Mecikalski2 , Vanessa Acaron3 and Jayson Maldonado3 1 Department insolation, other meteorological variables (e.g., net radiation, soil heat flux, air temperature dew point remote sensing product. As a practical example of the use of the methodology, the Hargraeves-Samani ETo

Gilbes, Fernando

268

Estimating direct, diffuse, and global solar radiation for various cities in Iran by two methods and their comparison with the measured data  

SciTech Connect (OSTI)

Two computational methods for calculating hourly, daily, and monthly average values of direct, diffuse, and global solar radiation on horizontal collectors have been presented in this article for location with different latitude, altitude, and atmospheric conditions in Iran. These methods were developed using two different independent sets of measured data from the Iranian Meteorological Organization (IMO) for two cities in Iran (Tehran and Isfahan) during 14 years of measurement for Tehran and 4 years of measurement for Isfahan. Comparison of calculated monthly average global solar radiation, using the two models for Tehran and Isfahan with measured data from the IMO, has indicated a good agreement between them. Then these developed methods were extended to another location (city of Bandar-Abbas), where measured data are not available. But the work of Daneshyar predicts its monthly global radiation. The maximum discrepancy of 7% between the developed models and the work of Daneshyar was observed.

Ashjaee, M.; Roomina, M.R.; Ghafouri-Azar, R. (Univ. of Tehran (Iran, Islamic Republic of))

1993-05-01T23:59:59.000Z

269

Solar Radiometric Data Quality Assessment of SIRS, SKYRAD and GNDRAD Measurements (Poster)  

SciTech Connect (OSTI)

Solar radiation is the driving force for the earth's weather and climate. Understanding the elements of this dynamic energy balance requires accurate measurements of broadband solar irradiance. Since the mid-1990's the ARM Program has deployed pyrheliometers and pyranometers for the measurement of direct normal irradiance (DNI), global horizontal irradiance (GHI), diffuse horizontal irradiance (DHI), and upwelling shortwave (US) radiation at permanent and mobile field research sites. This poster summarizes the basis for assessing the broadband solar radiation data available from the SIRS, SKYRAD, and GNDRAD measurement systems and provides examples of data inspections.

Habte, A.; Stoffel, T.; Reda, I.; Wilcox, S.; Kutchenreiter, M.; Gotseff, P.; Anderberg, M.

2014-03-01T23:59:59.000Z

270

PoPulation Differentiation anD raPiD evolution of egg Color in aCCorDanCe with Solar raDiation  

E-Print Network [OSTI]

PoPulation Differentiation anD raPiD evolution of egg Color in aCCorDanCe with Solar raDiation Davi, . Diferenciación entre Poblaciones y Evolución Rápida del Color de los Huevos de Acuerdo a la Radiación Solar Uy C P' R d Pm wb, ://www.j. m/I.. DOI: 10.1525/k.2008.07033DOI: 10.1525/k.2008.07033 Bird egg color

Lahti, David C.

271

SOLAR ENERGY PROGRAM: CHAPTER FROM THE ENERGY AND ENVIRONMENT ANNUAL REPORT 1979  

E-Print Network [OSTI]

Flowers, "Comparison of Solar Radiation Sensors from Variousquality sensors and will be moved to locations where solarThis sensor has been carefully tested by the Solar Radiation

Authors, Various

2010-01-01T23:59:59.000Z

272

Thermal Conductivity Enhancement of High Temperature Phase Change Materials for Concentrating Solar Power Plant Applications  

E-Print Network [OSTI]

been heated at solar collection tower, at the temperatureIn the receiver tower, the collected solar radiation heatsfocus and send solar radiation to a receiver tower.

Roshandell, Melina

2013-01-01T23:59:59.000Z

273

Solar Adoption and Energy Consumption in the Residential Sector  

E-Print Network [OSTI]

year (TMY) solar radiation data. The goal here is toTMY or actual solar radiation data, and thus serves theusing actual solar radiation data, though this data must be

McAllister, Joseph Andrew

2012-01-01T23:59:59.000Z

274

Variation in rectal temperature, respiratory rate, and pulse rate of cattle as related to variations in solar radiation, air temperature, wind velocity, and vapor pressure  

E-Print Network [OSTI]

VARIATION IN RECTAL TEMPERATURE, RESPIRATORY RATE, AND PULSE RATE GF CATTLE AS RELATED TO VARIATIONS IN SOLAR RADIATION, AIR TEMPERATURE, WIND VELOCITY, AND VAPOR PRESSURE A Dissertation By Mohammad Fazlur Rahim Quazi Approved as to style... Dissertation By Mohammad Fazlur Rahim tyiazi Submitted to the Graduate School of the Agricultural and Mechanical College of Texas in partial fulfillment of the requirements for the degree of DOCTOR OF PHILOSOPHY May 1955 Major Subject: Genetics ? ?4...

Quazi, Mohammad Fazlur Rahim

1955-01-01T23:59:59.000Z

275

Solar Energy Fundamentals  

E-Print Network [OSTI]

Solar energy travels from the sun to the earth in the form of electromagnetic radiation. In this course properties of electromagnetic radiation will be discussed and basic calculations for electromagnetic radiation will be described. Several solar position parameters will be discussed along with means of calculating

Harlan H. Bengtson; Harlan H. Bengtson

276

SOLAR ENERGY Andrew Blakers  

E-Print Network [OSTI]

and conversion methods usually entail few environmental problems. Solar energy includes both direct radiationSOLAR ENERGY Andrew Blakers Director, Centre for Sustainable Energy Systems Australian National Solar energy is special. It is vast, ubiquitous and indefinitely sustainable. The solar resource

277

Solar variability of four sites across the state of Colorado  

E-Print Network [OSTI]

dampen fluctuations in solar power output of the average ofthat solar radiation is proportional to PV power output and

Lave, Matthew; Kleissl, Jan

2010-01-01T23:59:59.000Z

278

Multi-horizon solar radiation forecasting for Mediterranean locations using time series models  

E-Print Network [OSTI]

Considering the grid manager's point of view, needs in terms of prediction of intermittent energy like the photovoltaic resource can be distinguished according to the considered horizon: following days (d+1, d+2 and d+3), next day by hourly step (h+24), next hour (h+1) and next few minutes (m+5 e.g.). Through this work, we have identified methodologies using time series models for the prediction horizon of global radiation and photovoltaic power. What we present here is a comparison of different predictors developed and tested to propose a hierarchy. For horizons d+1 and h+1, without advanced ad hoc time series pre-processing (stationarity) we find it is not easy to differentiate between autoregressive moving average (ARMA) and multilayer perceptron (MLP). However we observed that using exogenous variables improves significantly the results for MLP . We have shown that the MLP were more adapted for horizons h+24 and m+5. In summary, our results are complementary and improve the existing prediction techniques ...

Voyant, Cyril; Muselli, Marc; Nivet, Marie Laure

2013-01-01T23:59:59.000Z

279

Estimating solar irradiance using a geostationary satellite  

E-Print Network [OSTI]

WR7. Solar Radiation Data (SoDa) Service. http://www.soda-1995). In National Solar Radiation Data Base—Final TechnicalMeteosat derived gridded radiation data for Europe. This

Urquhart, Bryan Glenn

2011-01-01T23:59:59.000Z

280

The dosimetric impact of daily setup error on target volumes and surrounding normal tissue in the treatment of prostate cancer with intensity-modulated radiation therapy  

SciTech Connect (OSTI)

The purpose of this study was to evaluate the impact of daily setup error and interfraction organ motion on the overall dosimetric radiation treatment plans. Twelve patients undergoing definitive intensity-modulated radiation therapy (IMRT) treatments for prostate cancer were evaluated in this institutional review board-approved study. Each patient had fiducial markers placed into the prostate gland before treatment planning computed tomography scan. IMRT plans were generated using the Eclipse treatment planning system. Each patient was treated to a dose of 8100 cGy given in 45 fractions. In this study, we retrospectively created a plan for each treatment day that had a shift available. To calculate the dose, the patient would have received under this plan, we mathematically 'negated' the shift by moving the isocenter in the exact opposite direction of the shift. The individualized daily plans were combined to generate an overall plan sum. The dose distributions from these plans were compared with the treatment plans that were used to treat the patients. Three-hundred ninety daily shifts were negated and their corresponding plans evaluated. The mean isocenter shift based on the location of the fiducial markers was 3.3 {+-} 6.5 mm to the right, 1.6 {+-} 5.1 mm posteriorly, and 1.0 {+-} 5.0 mm along the caudal direction. The mean D95 doses for the prostate gland when setup error was corrected and uncorrected were 8228 and 7844 cGy (p < 0.002), respectively, and for the planning target volume (PTV8100) was 8089 and 7303 cGy (p < 0.001), respectively. The mean V95 values when patient setup was corrected and uncorrected were 99.9% and 87.3%, respectively, for the PTV8100 volume (p < 0.0001). At an individual patient level, the difference in the D95 value for the prostate volume could be >1200 cGy and for the PTV8100 could approach almost 2000 cGy when comparing corrected against uncorrected plans. There was no statistically significant difference in the D35 parameter for the surrounding normal tissue except for the dose received by the penile bulb and the right hip. Our dosimetric evaluation suggests significant underdosing with inaccurate target localization and emphasizes the importance of accurate patient setup and target localization. Further studies are needed to evaluate the impact of intrafraction organ motion, rotation, and deformation on doses delivered to target volumes.

Algan, Ozer, E-mail: oalgan@ouhsc.edu [Department of Radiation Oncology, Biostatistics and Epidemiology, University of Oklahoma Health Sciences Center, Oklahoma City, OK (United States); Jamgade, Ambarish; Ali, Imad; Christie, Alana; Thompson, J. Spencer; Thompson, David; Ahmad, Salahuddin; Herman, Terence [Department of Radiation Oncology, Biostatistics and Epidemiology, University of Oklahoma Health Sciences Center, Oklahoma City, OK (United States)

2012-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "normal solar radiation" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


281

DRAFT INTERIM REPORT: NATIONAL PROGRAM PLAN FOR PASSIVE AND HYBRID SOLAR HEATING AND COOLING  

E-Print Network [OSTI]

of exi nc :;:; ;;;- radiation data radiation data and recommendations for thevertical surface solar radiation data, for example); and (2)

Authors, Various

2012-01-01T23:59:59.000Z

282

Solar Dynamics Observatory/ Extreme Ultraviolet Variability Experiment  

E-Print Network [OSTI]

Solar Dynamics Observatory/ EVE Extreme Ultraviolet Variability Experiment Frequently Asked and model solar extreme ultraviolet irradiance variations due to solar flares, solar rotation, and solar and structure of the Sun. What is solar variability? Solar radiation varies on all time scales ranging from

Mojzsis, Stephen J.

283

Petrovay: Solar physics The solar cycle ACTIVE REGIONS  

E-Print Network [OSTI]

Petrovay: Solar physics The solar cycle ACTIVE REGIONS Large scale (up to 100 Mm) anomalies in the structure and radiation of the solar atmosphere. Photosphere : AR = cluster of strong magnetic flux tubes of facular points. Filamentary structure due to supergranulation. #12;Petrovay: Solar physics The solar cycle

Petrovay, Kristóf

284

Effect of Solar Radiation on the Optical Properties and Molecular Composition of Laboratory Proxies of Atmospheric Brown Carbon  

SciTech Connect (OSTI)

Sources, optical properties, and chemical composition of atmospheric brown carbon (BrC) aerosol are uncertain, making it challenging to estimate its contribution to radiative forcing. Furthermore, optical properties of BrC may change significantly during its atmospheric aging. We examined the effect of solar photolysis on the molecular composition, mass absorption coefficient, and fluorescence of secondary organic aerosol prepared by high-NOx photooxidation of naphthalene (NAP SOA). The aqueous solutions of NAP SOA was observed to photobleach with an effective half-time of ?15 hours (with sun in its zenith) for the loss of the near-UV (300 -400 nm) absorbance. The molecular composition of NAP SOA was significantly modified by photolysis, with the average SOA formula changing from C14.1H14.5O5.1N0.08 to C11.8H14.9O4.5N0.02 after 4 hours of irradiation. The average O/C ratio did not change significantly, however, suggesting that it is not a good metric for assessing the extent of photolysis-driven aging in NAP SOA (and in BrC in general). In contrast to NAP SOA, the photolysis of BrC material produced by aqueous reaction of limonene+O3 SOA (LIM/O3 SOA) with ammonium sulfate was much faster, but it did not result in a significant change in the molecular level composition. The characteristic absorbance of the aged LIM/O3 SOA in the 450-600 nm range decayed with an effective half-time of <0.5 hour. This result emphasizes the highly variable and dynamic nature of different types of atmospheric BrC.

Lee, Hyun Ji; Aiona, Paige K.; Laskin, Alexander; Laskin, Julia; Nizkorodov, Sergey

2014-09-02T23:59:59.000Z

285

A transitioning Arctic surface energy budget: the impacts of solar zenith angle, surface albedo and cloud radiative forcing  

E-Print Network [OSTI]

A transitioning Arctic surface energy budget: the impacts of solar zenith angle, surface albedo Springer-Verlag 2010 Abstract Snow surface and sea-ice energy budgets were measured near 87.5°N during indicated four distinct tempera- ture regimes, characterized by varying cloud, thermody- namic and solar

Shupe, Matthew

286

A transitioning Arctic surface energy budget: the impacts of solar zenith angle, surface albedo and cloud radiative forcing  

E-Print Network [OSTI]

A transitioning Arctic surface energy budget: the impacts of solar zenith angle, surface albedo surface and sea-ice energy budgets were measured near 87.5°N during the Arctic Summer Cloud Ocean Study regimes, characterized by varying cloud, thermody- namic and solar properties. An initial warm, melt

Brooks, Ian M.

287

Relative Accuracy of 1-Minute and Daily Total Solar Radiation Data for 12 Global and 4 Direct Beam Solar Radiometers: Preprint  

SciTech Connect (OSTI)

This report evaluates the relative performance of 12 global and four direct beam solar radiometers deployed at a single site over a 12-month period. Test radiometer irradiances were compared with a reference irradiance consisting of either an absolute cavity radiometer (during calibrations) or a low uncertainty thermopile pyrheliometer (during the evaluation period) for pyrheliometers; and for pyranometers a reference global irradiance computed from the reference pyrheliometer and diffuse irradiance from a shaded pyranometer.

Myers, D. R.; Wilcox, S. M.

2009-03-01T23:59:59.000Z

288

Surface Radiation from GOES: A Physical Approach; Preprint  

SciTech Connect (OSTI)

Models to compute Global Horizontal Irradiance (GHI) and Direct Normal Irradiance (DNI) have been in development over the last 3 decades. These models can be classified as empirical or physical, based on the approach. Empirical models relate ground based observations with satellite measurements and use these relations to compute surface radiation. Physical models consider the radiation received from the earth at the satellite and create retrievals to estimate surface radiation. While empirical methods have been traditionally used for computing surface radiation for the solar energy industry the advent of faster computing has made operational physical models viable. The Global Solar Insolation Project (GSIP) is an operational physical model from NOAA that computes GHI using the visible and infrared channel measurements from the GOES satellites. GSIP uses a two-stage scheme that first retrieves cloud properties and uses those properties in a radiative transfer model to calculate surface radiation. NREL, University of Wisconsin and NOAA have recently collaborated to adapt GSIP to create a 4 km GHI and DNI product every 30 minutes. This paper presents an outline of the methodology and a comprehensive validation using high quality ground based solar data from the National Oceanic and Atmospheric Administration (NOAA) Surface Radiation (SURFRAD) (http://www.srrb.noaa.gov/surfrad/sitepage.html) and Integrated Surface Insolation Study (ISIS) http://www.srrb.noaa.gov/isis/isissites.html), the Solar Radiation Research Laboratory (SRRL) at National Renewable Energy Laboratory (NREL), and Sun Spot One (SS1) stations.

Habte, A.; Sengupta, M.; Wilcox, S.

2012-09-01T23:59:59.000Z

289

Solar selective absorption coatings  

DOE Patents [OSTI]

A new class of solar selective absorption coatings are disclosed. These coatings comprise a structured metallic overlayer such that the overlayer has a sub-micron structure designed to efficiently absorb solar radiation, while retaining low thermal emissivity for infrared thermal radiation. A sol-gel layer protects the structured metallic overlayer from mechanical, thermal, and environmental degradation. Processes for producing such solar selective absorption coatings are also disclosed.

Mahoney, Alan R. (Albuquerque, NM); Reed, Scott T. (Albuquerque, NM); Ashley, Carol S. (Albuquerque, NM); Martinez, F. Edward (Horseheads, NY)

2003-10-14T23:59:59.000Z

290

Solar selective absorption coatings  

DOE Patents [OSTI]

A new class of solar selective absorption coatings are disclosed. These coatings comprise a structured metallic overlayer such that the overlayer has a sub-micron structure designed to efficiently absorb solar radiation, while retaining low thermal emissivity for infrared thermal radiation. A sol-gel layer protects the structured metallic overlayer from mechanical, thermal, and environmental degradation. Processes for producing such solar selective absorption coatings are also disclosed.

Mahoney, Alan R. (Albuquerque, NM); Reed, Scott T. (Albuquerque, NM); Ashley, Carol S. (Albuquerque, NM); Martinez, F. Edward (Horseheads, NY)

2004-08-31T23:59:59.000Z

291

Planar photovoltaic solar concentrator module  

DOE Patents [OSTI]

A planar photovoltaic concentrator module for producing an electrical signal from incident solar radiation includes an electrically insulating housing having a front wall, an opposing back wall and a hollow interior. A solar cell having electrical terminals is positioned within the interior of the housing. A planar conductor is connected with a terminal of the solar cell of the same polarity. A lens forming the front wall of the housing is operable to direct solar radiation incident to the lens into the interior of the housing. A refractive optical element in contact with the solar cell and facing the lens receives the solar radiation directed into the interior of the housing by the lens and directs the solar radiation to the solar cell to cause the solar cell to generate an electrical signal. An electrically conductive planar member is positioned in the housing to rest on the housing back wall in supporting relation with the solar cell terminal of opposite polarity. The planar member is operable to dissipate heat radiated by the solar cell as the solar cell generates an electrical signal and further forms a solar cell conductor connected with the solar cell terminal to permit the electrical signal generated by the solar cell to be measured between the planar member and the conductor. 5 figs.

Chiang, C.J.

1992-12-01T23:59:59.000Z

292

Planar photovoltaic solar concentrator module  

DOE Patents [OSTI]

A planar photovoltaic concentrator module for producing an electrical signal from incident solar radiation includes an electrically insulating housing having a front wall, an opposing back wall and a hollow interior. A solar cell having electrical terminals is positioned within the interior of the housing. A planar conductor is connected with a terminal of the solar cell of the same polarity. A lens forming the front wall of the housing is operable to direct solar radiation incident to the lens into the interior of the housing. A refractive optical element in contact with the solar cell and facing the lens receives the solar radiation directed into the interior of the housing by the lens and directs the solar radiation to the solar cell to cause the solar cell to generate an electrical signal. An electrically conductive planar member is positioned in the housing to rest on the housing back wall in supporting relation with the solar cell terminal of opposite polarity. The planar member is operable to dissipate heat radiated by the solar cell as the solar cell generates an electrical signal and further forms a solar cell conductor connected with the solar cell terminal to permit the electrical signal generated by the solar cell to be measured between the planar member and the conductor.

Chiang, Clement J. (New Brunswick, NJ)

1992-01-01T23:59:59.000Z

293

Evaluating Solar Resource Data Obtained from Multiple Radiometers Deployed at the National Renewable Energy Laboratory: Preprint  

SciTech Connect (OSTI)

Solar radiation resource measurements from radiometers are used to predict and evaluate the performance of photovoltaic and concentrating solar power systems, validate satellite-based models for estimating solar resources, and advance research in solar forecasting and climate change. This study analyzes the performance of various commercially available radiometers used for measuring global horizontal irradiances (GHI) and direct normal irradiances (DNI). These include pyranometers, pyrheliometers, rotating shadowband irradiometers, and a pyranometer with a shading ring deployed at the National Renewable Energy Laboratory's Solar Radiation Research Laboratory (SRRL). The radiometers in this study were deployed for one year (from April 1, 2011, through March 31, 2012) and compared to measurements from radiometers with the lowest values of estimated measurement uncertainties for producing reference GHI and DNI.

Habte, A.; Sengupta, M.; Andreas, A.; Wilcox, S.; Stoffel, T.

2014-09-01T23:59:59.000Z

294

SOLAR-BLIND PYROMETRIC TEMPERATURE MEASUREMENT UNDER CONCENTRATED SOLAR  

E-Print Network [OSTI]

-flux solar irradiation, pyrometric techniques can be adopted. However, depending on the optical propertiesSOLAR-BLIND PYROMETRIC TEMPERATURE MEASUREMENT UNDER CONCENTRATED SOLAR IRRADIATION Markus Pfänder1 of solar receivers. In the hostile environment of hot, irradiated surfaces, radiation thermometry

295

Site-specific solar resource measurements for industrial solar applications  

SciTech Connect (OSTI)

The solar industry can borrow solar radiation measuring equipment from the National Renewable Energy Laboratory (NREL) as part of NREL`s Solar Industrial Program. This program provides assistance to qualified parties in quantifying the solar radiation resource at prospective sites to reduce the risks of deploying industrial solar energy systems. Up-to-date solar radiation measurements permit comparisons of fresh data with existing data to verify established data bases and also provide data based on actual measurements instead of on less accurate models. This report outlines the responsibilities and obligations of NREL and the solar industry participant. It also describes the equipment for measuring solar radiation, the data quality assessment procedures, and the format of the data provided.

Marion, W.

1994-06-01T23:59:59.000Z

296

Solar variability of four sites across the state of Colorado  

E-Print Network [OSTI]

a month of 1 minute radiation data from 11 sites over 75 xwealth of solar radiation data is available throughSolar Radiation Database (NSRDB), these data are only

Lave, Matthew; Kleissl, Jan

2010-01-01T23:59:59.000Z

297

Efficiency enhancement of luminescent solar concentrations for photovoltaic technologies  

E-Print Network [OSTI]

parts of the solar spectrum, the power output of the LSC PVson our lab. The power output of the solar simulator is aboutinput solar radiation, the higher the power output. Solar

Wang, Chunhua

2011-01-01T23:59:59.000Z

298

About the Stanford Synchrotron Radiation Lightsource | Stanford...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

and the batteries found in small electronic devices. Innovative Solar Cells A new process that simultaneously combines the light and heat of solar radiation to generate...

299

Solar retorting of oil shale  

DOE Patents [OSTI]

An apparatus and method for retorting oil shale using solar radiation. Oil shale is introduced into a first retorting chamber having a solar focus zone. There the oil shale is exposed to solar radiation and rapidly brought to a predetermined retorting temperature. Once the shale has reached this temperature, it is removed from the solar focus zone and transferred to a second retorting chamber where it is heated. In a second chamber, the oil shale is maintained at the retorting temperature, without direct exposure to solar radiation, until the retorting is complete.

Gregg, David W. (Morago, CA)

1983-01-01T23:59:59.000Z

300

Passive solar design handbook  

SciTech Connect (OSTI)

The Passive Solar Design Handbook, Volume Three updates Volume Two by presenting extensive new data on the optimum mix of conservation and solar direct gain, sunspaces, thermal storage walls, and solar radiation. The direct gain, thermal storage wall, and solar radiation data are greatly expanded relative to the Volume 2 coverage. The needed flexibility to analyze a variety of system designs is accommodated by the large number of reference designs to be encompassed - 94 in contrast to 6 in Volume two - and the large amount of sensitivity data for direct gain and sunspace systems - approximately 1100 separate curves.

Jones, R.W.

1981-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "normal solar radiation" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


301

First principle analyses of direct bandgap solar cells with absorbing substrates versus mirrors  

SciTech Connect (OSTI)

Direct bandgap InP, GaAs, CdTe, and Ga{sub 0.5}In{sub 0.5}P solar cells containing backside mirrors as well as parasitically absorbing substrates are analyzed for their limiting open circuit voltage and power conversion efficiency with comparison to record solar cells. From the principle of detailed balance, it is shown quantitatively that mirror solar cells have greater voltage and power conversion efficiency than their substrate counterparts. Next, the radiative recombination coefficient and maximum radiative lifetime of GaAs mirror and substrate solar cells are calculated and compared to the nonradiative Auger and Shockley-Read-Hall (SRH) lifetimes. Mirror solar cells have greater radiative lifetime than their substrate variants. Auger lifetime exceeds radiative lifetime for both substrate and mirror cells while SRH lifetime may be less or greater than radiative lifetime depending on trap concentration and capture cross section. Finally, the change in free energy of the photogenerated carriers is analyzed in a comparison between InP, GaAs, CdTe, and Ga{sub 0.5}In{sub 0.5}P mirror and substrate solar cells in order to characterize the relationship between solar photon quality and free energy management in solar cells with differing bandgaps. Wider bandgap visible threshold Ga{sub 0.5}In{sub 0.5}P solar cells make better use of the available change in free energy of the photogenerated charge carriers, even when normalized to the bandgap energy, than narrower bandgap near-IR threshold InP, GaAs, and CdTe solar cells.

Kirk, Alexander P. [School of Electrical, Computer and Energy Engineering, Arizona State University, Tempe, Arizona 85287 (United States); Kirk, Wiley P. [Department of Materials Science and Engineering, University of Texas at Arlington, Arlington, Texas 76019 (United States)

2013-11-07T23:59:59.000Z

302

RADIATION SENSITIVITY & PROCESSING OF DNA DAMAGE FOLLOWING LOW DOSES OF GAMMA-RAY ALPHA PARTICLES & HZE IRRADIATION OF NORMAL DSB REPAIR DEFICIENT CELLS  

SciTech Connect (OSTI)

Non-homologous end joining (NHEJ) predominates in the repair of DNA double strand breaks (DSB) over homologous recombination (HR). NHEJ occurs throughout the cell cycle whereas HR occurs in late S/G2 due to the requirement of a sister chromatid (Rothkamm et al, Mol Cell Biol 23 5706-15 [2003]). To date evidence obtained with DSB repair deficient cells using pulsed-field gel electrophoresis has revealed the major pathway throughout all phases of the cell cycle for processing high dose induced DSBs is NHEJ (Wang et al, Oncogene 20 2212-24 (2001); Pluth et al, Cancer Res. 61 2649-55 [2001]). These findings however were obtained at high doses when on average >> 20-30 DSBs are formed per cell. The contribution of the repair pathways (NHEJ and HR) induced in response to DNA damage during the various phases of the cell cycle may depend upon the dose (the level of initial DSBs) especially since low levels of DSBs are induced at low dose. To date, low dose studies using NHEJ and HR deficient mutants have not been carried out to address this important question with radiations of different quality. The work presented here leads us to suggest that HR plays a relatively minor role in the repair of radiation-induced prompt DSBs. SSBs lead to the induction of DSBs which are associated specifically with S-phase cells consistent with the idea that they are formed at stalled replication forks in which HR plays a major role in repair. That DNA-PKcs is in some way involved in the repair of the precursors to replication-induced DSB remains an open question. Persistent non-DSB oxidative damage also leads to an increase in RAD51 positive DSBs. Both simple and complex non-DSB DNA damage may therefore contribute to indirect DSBs induced by ionising radiation at replication forks.

O'Neil, Peter

2009-05-15T23:59:59.000Z

303

Development of Simplified Calculations for a Multipyranometer Array for the Measurement of Direct and Diffuse Solar Radiation  

E-Print Network [OSTI]

in Finland by M. HW1'aien et al. (1985). Further development on the MPA was performed in several countries ineluding the United States where Perez (1986) presented a method for deriving beam radiation from a series of vertically mounted pyranometers...

Munger, B. K.; Haberl, J. S.

2000-01-01T23:59:59.000Z

304

UNIVERSITY OF OREGON SOLAR MONITORING LABORATORY The University of Oregon (UO) Solar Moni-  

E-Print Network [OSTI]

i UNIVERSITY OF OREGON SOLAR MONITORING LABORATORY The University of Oregon (UO) Solar Moni- toring Laboratory has been measuring incident solar radiation since 1975. Current support for this work comes from the Regional Solar Radiation Monitoring Project (RSRMP), a utility consortium project including the Bon

Oregon, University of

305

Analysis of the California Solar Resource--Volume 3: Appendices  

E-Print Network [OSTI]

fractional solar data error and the fractional output errorthe output that would be predicted if the solar data weresolar radiation data is the actual realization of an output

erdahl, P.

2011-01-01T23:59:59.000Z

306

Parameterization of solar flare dose  

E-Print Network [OSTI]

A critical aspect of missions to the Moon or Mars is the safety and health of the crew. Radiation in space is a hazard for astronauts, especially high-energy radiation following certain types of solar flares. A solar flare event can be very...

Lamarche, Anne Helene

1995-01-01T23:59:59.000Z

307

Solar Influences on Climate Professor Joanna Haigh  

E-Print Network [OSTI]

Solar Influences on Climate Professor Joanna Haigh Executive Summary The Sun provides the energy to be much smaller than those due to increasing greenhouse gases. What are the sources of variation in solar radiation? There are two main sources of variation in solar radiation. First, there are internal stellar

Rosso, Lula

308

Evaluation of numerical weather prediction for intra-day solar forecasting in the continental United States  

E-Print Network [OSTI]

Downward surface solar radiation  data released at 12 UTC forecast shortwave radiation with data obtained from the radiation:   A statistical approach using satellite data.   

Mathiesen, Patrick; Kleissl, Jan

2011-01-01T23:59:59.000Z

309

E-Print Network 3.0 - absorption solar cooling Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

will introduce the theory of radiative transfer; the second part Summary: to greenhouse effect and solar radiation 6. Radiative heating and cooling a. The Chapman layer b....

310

Coupled Orbit-Attitude Dynamics of High Area-to-Mass Ratio (HAMR) Objects: Influence of Solar Radiation Pressure, Earth's Shadow and the Visibility in Light Curves  

E-Print Network [OSTI]

The orbital and attitude dynamics of uncontrolled Earth orbiting objects are perturbed by a variety of sources. In research, emphasis has been put on operational space vehicles. Operational satellites typically have a relatively compact shape, and hence, a low area-to-mass ratio (AMR), and are in most cases actively or passively attitude stabilized. This enables one to treat the orbit and attitude propagation as decoupled problems, and in many cases the attitude dynamics can be neglected completely. The situation is different for space debris objects, which are in an uncontrolled attitude state. Furthermore, the assumption that a steady-state attitude motion can be averaged over data reduction intervals may no longer be valid. Additionally, a subset of the debris objects have significantly high area-to-mass ratio values, resulting in highly perturbed orbits, e.g. by solar radiation pressure, even if a stable AMR value is assumed. This assumption implies a steady-state attitude such that the average cross-sect...

Frueh, Carolin; Kelecy, Thomas

2013-01-01T23:59:59.000Z

311

Solar Adoption and Energy Consumption in the Residential Sector  

E-Print Network [OSTI]

solar radiation data. The goal here is to estimate generic output datasolar radiation data. The goal here is to estimate generic output data

McAllister, Joseph Andrew

2012-01-01T23:59:59.000Z

312

Characterizing the Performance of an Eppley Normal Incident Pyrheliometer An Eppley Normal Incident Pyrheliometer (NIP) is  

E-Print Network [OSTI]

With interest growing in the deployment of solar energy system, the accuracy of irradiance measurements becomes for concentrating solar energy systems. The Eppley Normal Incident Pyrheliometer (NIP) is used extensively for DNI and periods with clouds were excluded. The NIP is mounted on an automatic tracker that keeps the instrument

Oregon, University of

313

Ch.2 Solar Energy to Earth and the Seasons  

E-Print Network [OSTI]

Light year is a unit of distance!!! #12;Our Solar System #12;Earth's orbit Earth's orbit around energy is radiant energy (i.e., radiant light and heat) from the Sun. #12;How is solar energy created Southern lights Northern lights #12;Learning Objective Three: Solar Radiation #12; Solar radiation

Pan, Feifei

314

2015 Pearson Education, Inc. Chapter 2 Solar Energy to Earth  

E-Print Network [OSTI]

. The unit is Joule (J). · Solar energy is radiant energy (i.e., radiant light and heat) from the Sun% solar radiation Solar radiation consists of: 1. Gamma rays, X-rays, UV (8%) 2. Visible light (47%) 3© 2015 Pearson Education, Inc. Chapter 2 Solar Energy to Earth and the Seasons #12;© 2015 Pearson

Pan, Feifei

315

SPECTRAL SOLAR IRRADIANCE AND ITS ENTROPIC EFFECT ON EARTH'S CLIMATE  

E-Print Network [OSTI]

SPECTRAL SOLAR IRRADIANCE AND ITS ENTROPIC EFFECT ON EARTH'S CLIMATE Wei Wu1 , Yangang Liu1 of the spectral solar irradiance (SSI) at the top of the Earth's atmosphere by the Solar Radiation and Climate's entropy flux from the TOA incident solar radiation. Two extreme cases are examined by using Planck

316

Do You Have a Solar Water Heater?  

Broader source: Energy.gov [DOE]

Earlier this week, Ernie wrote about the economics of getting a solar water heater. As Ernie explained, a solar water heater is more expensive than a normal water heater, but depending on your area...

317

Solar Rights  

Broader source: Energy.gov [DOE]

In June 2010, Louisiana enacted solar rights legislation (HB 751) that prohibits certain entities from unreasonably restricting a property owner from installing a solar collector. Solar collectors...

318

Failure and Redemption of Multifilter Rotating Shadowband Radiometer (MFRSR)/Normal Incidence Multifilter Radiometer (NIMFR) Cloud Screening: Contrasting Algorithm Performance at Atmospheric Radiation Measurement (ARM) North Slope of Alaska (NSA) and Southern Great Plains (SGP) Sites  

SciTech Connect (OSTI)

Well-known cloud-screening algorithms, which are designed to remove cloud-contaminated aerosol optical depths (AOD) from AOD measurements, have shown great performance at many middle-to-low latitude sites around the world. However, they may occasionally fail under challenging observational conditions, such as when the sun is low (near the horizon) or when optically thin clouds with small spatial inhomogeneity occur. Such conditions have been observed quite frequently at the high-latitude Atmospheric Radiation Measurement (ARM) North Slope of Alaska (NSA) sites. A slightly modified cloud-screening version of the standard algorithm is proposed here with a focus on the ARM-supported Multifilter Rotating Shadowband Radiometer (MFRSR) and Normal Incidence Multifilter Radiometer (NIMFR) data. The modified version uses approximately the same techniques as the standard algorithm, but it additionally examines the magnitude of the slant-path line of sight transmittance and eliminates points when the observed magnitude is below a specified threshold. Substantial improvement of the multi-year (1999-2012) aerosol product (AOD and its Angstrom exponent) is shown for the NSA sites when the modified version is applied. Moreover, this version reproduces the AOD product at the ARM Southern Great Plains (SGP) site, which was originally generated by the standard cloud-screening algorithms. The proposed minor modification is easy to implement and its application to existing and future cloud-screening algorithms can be particularly beneficial for challenging observational conditions.

Kassianov, Evgueni I.; Flynn, Connor J.; Koontz, Annette S.; Sivaraman, Chitra; Barnard, James C.

2013-09-11T23:59:59.000Z

319

E-Print Network 3.0 - abscopal radiation effects Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

will introduce the theory of radiative transfer; the second part Summary: to greenhouse effect and solar radiation 6. Radiative heating and cooling a. The Chapman layer b....

320

ccsd00003444, Jordan Normal and Rational Normal  

E-Print Network [OSTI]

that the characteristic polynomial can be fully factorized (see e.g. Fortuna-Gianni for rational normal forms

Note: This page contains sample records for the topic "normal solar radiation" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


321

Utilization of solar energy in cold climate.  

E-Print Network [OSTI]

??Solar radiation is a source of life on the Earth. The sun heats the atmosphere and the surface of our planet. Because of the sun… (more)

Tazeeva, Elena

2010-01-01T23:59:59.000Z

322

Multi-objective optimization of solar tower heliostat fields  

E-Print Network [OSTI]

Multi-objective optimization of solar tower heliostat fields Pascal Richter, Martin Frank and Erika Introduction Solar tower plants generate electric power from sunlight by focusing concentrated solar radiation electricity. Fig. 1 Solar tower plant PS10, 11 MW in Andalusia, Spain. [Source: flickr] Solar tower plants

Ábrahám, Erika

323

RADIATION AND CLOUD MONITORING STATIONS  

E-Print Network [OSTI]

how they affect the energy balance between incoming solar radiation and heat re-radiated from Earth, and moisture content; area cloud coverage; solar and terrestrial radia- tion; and standard meteorological region and the North Slope of Alaska. ARCS sites are a component of the Department of Energy

Reeves, Geoffrey D.

324

Solar Powered Classroom  

SciTech Connect (OSTI)

A group of fourth graders in Durham, North Carolina, are showing America the way to a clean energy future. They are installing solar panels on their classroom roof for a project that goes above and beyond a normal day in school. From researching solar panel installation, to generating funds for the project via Kickstarter, these are students who put their plans into action. Their accomplishments go beyond the classroom and stress the importance of getting people of all ages involved in renewable energy.

none

2013-06-13T23:59:59.000Z

325

Solar Powered Classroom  

ScienceCinema (OSTI)

A group of fourth graders in Durham, North Carolina, are showing America the way to a clean energy future. They are installing solar panels on their classroom roof for a project that goes above and beyond a normal day in school. From researching solar panel installation, to generating funds for the project via Kickstarter, these are students who put their plans into action. Their accomplishments go beyond the classroom and stress the importance of getting people of all ages involved in renewable energy.

none

2013-06-27T23:59:59.000Z

326

Influence of Extraterrestrial Radiation on Radiation Portal Monitors  

SciTech Connect (OSTI)

Cosmic radiation and solar flares can be a major source of background radiation at the Earth’s surface. This paper examines the relationship between extraterrestrial radiation and the detectable background in radiation portal monitors used for homeland security applications. Background radiation data from 13 radiation portal monitor facilities are examined and compared against external sources of data related to extraterrestrial radiation, including measurements at neutron monitors located at 53 cosmic-ray observatories around the Earth, four polar orbiting satellites, three geostationary satellites, ground-based geomagnetic field data from observatories around the Earth, a solar magnetic index, solar radio flux data, and sunspot activity data. Four-years (January 2003 through December 2006) of data are used in this study, which include the latter part of Solar Cycle 23 as solar activity was on the decline. The analysis shows a significant relationship between some extraterrestrial radiation and the background detected in the radiation portal monitors. A demonstrable decline is shown in the average gamma ray and neutron background at the radiation portal monitors as solar activity declined over the period of the study.

Keller, Paul E.; Kouzes, Richard T.

2009-06-01T23:59:59.000Z

327

Solar Thermal Conversion  

SciTech Connect (OSTI)

The thermal conversion process of solar energy is based on well-known phenomena of heat transfer (Kreith 1976). In all thermal conversion processes, solar radiation is absorbed at the surface of a receiver, which contains or is in contact with flow passages through which a working fluid passes. As the receiver heats up, heat is transferred to the working fluid which may be air, water, oil, or a molten salt. The upper temperature that can be achieved in solar thermal conversion depends on the insolation, the degree to which the sunlight is concentrated, and the measures taken to reduce heat losses from the working fluid.

Kreith, F.; Meyer, R. T.

1982-11-01T23:59:59.000Z

328

E-Print Network 3.0 - adaheli solar mission Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Conversion and Utilization 14 National Aeronautics and Space Administration Ultra-Light, Low-Cost Solar Concentrator Offers Summary: , solar power high radiation...

329

E-Print Network 3.0 - alingap solar cell Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Solar Radiation Monitoring Laboratory Summary: an electrical current when illuminated by light- also called a solar cell Photovoltaic Module A group... produced when plotting...

330

Light trapping for emission from a photovoltaic cell under normally incident monochromatic illumination  

SciTech Connect (OSTI)

We have theoretically demonstrated a new light-trapping mechanism to reduce emission from a photovoltaic (PV) cell used for a monochromatic light source, which improves limiting conversion efficiency determined by the detailed balance. A multilayered bandpass filter formed on the surface of a PV cell has been found to prevent the light generated inside by radiative recombination from escaping the cell, resulting in a remarkable decrease of the effective solid angle for the emission. We have clarified a guide to design a suitable configuration of the bandpass filter and achieved significant reduction of the emission. The resultant gain in monochromatic conversion efficiency in the radiative limit due to the optimally designed 18-layerd bandpass filters is as high as 6% under normally incident 1064?nm illumination of 10 mW/cm{sup 2?}??1?kW/cm{sup 2}, compared with the efficiency for the perfect anti-reflection treatment to the surface of a conventional solar cell.

Takeda, Yasuhiko, E-mail: takeda@mosk.tytlabs.co.jp; Iizuka, Hideo; Mizuno, Shintaro; Hasegawa, Kazuo; Ichikawa, Tadashi; Ito, Hiroshi; Kajino, Tsutomu [Toyota Central Research and Development Laboratories, Inc., 41-1, Yokomichi, Nagakute, Aichi 480-1192 (Japan); Ichiki, Akihisa; Motohiro, Tomoyoshi [Green Mobility Collaborative Research Center, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8601 (Japan)

2014-09-28T23:59:59.000Z

331

Radiative and climate impacts of absorbing aerosols  

E-Print Network [OSTI]

and less surface solar radiation in China from 1955 to 2000,2001 in China, and meanwhile, both surface solar radiationsolar heating greatly decreases RH in the lower troposphere for both China and

Zhu, Aihua

2010-01-01T23:59:59.000Z

332

The Solar Chimney Schlaich Bergermann und Partner  

E-Print Network [OSTI]

. Designing large solar chimneys 10 6. Energy Production Costs 12 7. References 14 Author: Schlaich Bergermann with solar radiation in their desert areas. Usbe Ukra WeiÃ? RuÃ?l Keni GR Arge Syri Jord Saud Vene Trin E Tsch does anything. Why? Because apparently it must be a well-kept secret that large-scale solar energy

Lucier, Bradley J.

333

Method for processing silicon solar cells  

DOE Patents [OSTI]

The instant invention teaches a novel method for fabricating silicon solar cells utilizing concentrated solar radiation. The solar radiation is concentrated by use of a solar furnace which is used to form a front surface junction and back-surface field in one processing step. The present invention also provides a method of making multicrystalline silicon from amorphous silicon. The invention also teaches a method of texturing the surface of a wafer by forming a porous silicon layer on the surface of a silicon substrate and a method of gettering impurities. Also contemplated by the invention are methods of surface passivation, forming novel solar cell structures, and hydrogen passivation. 2 figs.

Tsuo, Y.S.; Landry, M.D.; Pitts, J.R.

1997-05-06T23:59:59.000Z

334

Method for processing silicon solar cells  

DOE Patents [OSTI]

The instant invention teaches a novel method for fabricating silicon solar cells utilizing concentrated solar radiation. The solar radiation is concentrated by use of a solar furnace which is used to form a front surface junction and back-surface field in one processing step. The present invention also provides a method of making multicrystallline silicon from amorphous silicon. The invention also teaches a method of texturing the surface of a wafer by forming a porous silicon layer on the surface of a silicon substrate and a method of gettering impurities. Also contemplated by the invention are methods of surface passivation, forming novel solar cell structures, and hydrogen passivation.

Tsuo, Y. Simon (Golden, CO); Landry, Marc D. (Lafayette, CO); Pitts, John R. (Lakewood, CO)

1997-01-01T23:59:59.000Z

335

Solar Easements  

Broader source: Energy.gov [DOE]

New Hampshire's "solar skyspace easement" provisions allow property owners to create solar easements in order to create and preserve a right to unobstructed access to solar energy. Easements remain...

336

Solar Easements  

Broader source: Energy.gov [DOE]

Virginia's solar easement law is similar to those in effect in other states. The Virginia Solar Easements Act of 1978 allows property owners to create binding solar easements for the purpose of...

337

II. HISTORICAL BACKGROUND Since 1977 the University of Oregon Solar  

E-Print Network [OSTI]

2 II. HISTORICAL BACKGROUND Since 1977 the University of Oregon Solar Monitoring Laboratory has operated a solar radiation monitoring network in the Pacific Northwest. The number of stations participat of utilities headed by the Eugene Water and Electric Board initiated the Re- gional Solar Radiation Monitoring

Oregon, University of

338

COMPOSITION OF THE SOLAR CORONA, SOLAR WIND, AND SOLAR ENERGETIC PARTICLES  

SciTech Connect (OSTI)

Along with temperature and density, the elemental abundance is a basic parameter required by astronomers to understand and model any physical system. The abundances of the solar corona are known to differ from those of the solar photosphere via a mechanism related to the first ionization potential of the element, but the normalization of these values with respect to hydrogen is challenging. Here, we show that the values used by solar physicists for over a decade and currently referred to as the 'coronal abundances' do not agree with the data themselves. As a result, recent analysis and interpretation of solar data involving coronal abundances may need to be revised. We use observations from coronal spectroscopy, the solar wind, and solar energetic particles as well as the latest abundances of the solar photosphere to establish a new set of abundances that reflect our current understanding of the coronal plasma.

Schmelz, J. T. [Physics Department, University of Memphis, Memphis, TN 38152 (United States); Reames, D. V. [IPST, University of Maryland, College Park, MD 20742 (United States); Von Steiger, R. [ISSI, Hallerstrasse 6, 3012 Bern (Switzerland); Basu, S., E-mail: jschmelz@memphis.edu [Department of Astronomy, Yale University, P.O. Box 208101, New Haven, CT 06520 (United States)

2012-08-10T23:59:59.000Z

339

Community Shared Solar with Solarize  

Broader source: Energy.gov [DOE]

An overview of the concept behind The Solarize Guidebook, which offers neighborhoods a plan for getting volume discounts when making group purchases of rooftop solar energy systems.

340

E-Print Network 3.0 - assessing radiation feedbacks Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

content from the whole quarter Summary: . Overview 2. Solar radiation and the Greenhouse effect 3. Forcings and feedbacks 4. Who's responsible 5... . Overview 2. Solar...

Note: This page contains sample records for the topic "normal solar radiation" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


341

MEASUREMENT OF CIRCUMSOLAR RADIATION - STATUS REPORT  

E-Print Network [OSTI]

15, 1976. "Circumsolar Radiation Data for Central Receiverdata on the instantaneous values of circum- solar radiation andradiation over the course of a day, month or year; and 3) detailed data

Grether, D.F.

2011-01-01T23:59:59.000Z

342

Asymptotic normalization coefficients (nuclear vertex constants) for $p+^7Be\\to ^8B$ and the direct $^7Be(p,?)^8B$ astrophysical S-factors at solar energies  

E-Print Network [OSTI]

A new analysis of the precise experimental astrophysical S-factors for the direct capture $^7Be(p,\\gamma)$ $^8B$ reaction [A.J.Junghans et al.Phys.Rev. C 68 (2003) 065803 and L.T. Baby et al. Phys.Rev. C 67 (2003) 065805] is carried out based on the modified two - body potential approach in which the direct astrophysical S-factor, $ {\\rm S_{17}(E)}$, is expressed in terms of the asymptotic normalization constants for $p+^7Be\\to ^8B$ and two additional conditions are involved to verify the peripheral character of the reaction under consideration. The Woods-Saxon potential form is used for the bound ($p+^7Be$)- state wave function and for the $p^7Be$- scattering wave function. New estimates are obtained for the $^{\\glqq}$indirectly measured\\grqq values of the asymptotic normalization constants (the nuclear vertex constants) for the $p+^7Be\\to ^8B$ and $S_{17}(E)$ at E$\\le$ 115 keV, including $E$=0. These values of $S_{17}(E)$ and asymptotic normalization constants have been used for getting information about the $^{\\glqq}$indirectly measured\\grqq values of the $s$ wave average scattering length and the $p$ wave effective range parameters for $p^7Be$- scattering.

S. B. Igamov; R. Yarmukhamedov

2008-04-01T23:59:59.000Z

343

CLM prescribes all solar absorption to occur in the top-most snow layer. However, our SNow, ICe, and Aerosol Radiative model  

E-Print Network [OSTI]

CLM prescribes all solar absorption to occur in the top-most snow layer. However, our SNow, ICe. Albedo decrease over the Tibetan Plateau indicates less snow cover, caused by sub-surface melt and ice accurate remotely-sensed surface reflectance over snow- covered regions, and shows that snow parameters may

Zender, Charles

344

November 21, 2000 PV Lesson Plan 1 Solar Cells  

E-Print Network [OSTI]

November 21, 2000 PV Lesson Plan 1 ­ Solar Cells Prepared for the Oregon Million Solar Roofs Coalition By Frank Vignola ­ University of Oregon Solar Radiation Monitoring Lab John Hocken ­ South Eugene High School Gary Grace ­ South Eugene High School In Schools #12;1 Solar Cells Lesson Plan Content

Oregon, University of

345

Alpha Radiation  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth (AOD)ProductssondeadjustsondeadjustAbout theOFFICE OF RESEARCHThermal SolarAllocatioBasics of Radiation Gamma

346

X-RAY EMISSION FROM PLANETS AND COMETS: RELATIONSHIP WITH SOLAR X-RAYS AND SOLAR WIND  

E-Print Network [OSTI]

with the occurrence of solar X-ray flare, when light travel time delay is accounted, suggesting that X-rays fromX-RAY EMISSION FROM PLANETS AND COMETS: RELATIONSHIP WITH SOLAR X-RAYS AND SOLAR WIND ANIL BHARDWAJ Flight center, Greenbelt, MD 20771, USA Scattering of solar X-ray radiation mainly produces the non

Ã?stgaard, Nikolai

347

Philadelphia, Pennsylvania: Solar in Action (Brochure), Solar...  

Broader source: Energy.gov (indexed) [DOE]

Philadelphia, Pennsylvania: Solar in Action (Brochure), Solar America Cities, Energy Efficiency & Renewable Energy (EERE) Philadelphia, Pennsylvania: Solar in Action (Brochure),...

348

Determination of the 3He+alpha\\to 7Be asymp. normalization coefficients (nucl. vertex constants) and their application for extrapolation of the 3He(alpha,gamma)7Be astroph. S-factors to the solar energy region  

E-Print Network [OSTI]

A new analysis of the precise experimental astrophysical $S$-factors for the direct capture $^3He(\\alpha,\\gamma)^7{\\rm {Be}}$ reaction [B.S. Nara Singh et al., Phys.Rev.Lett. {\\bf 93} (2004) 262503; D. Bemmerer et al., Phys.Rev.Lett. {\\bf 97} (2006) 122502; F.Confortola et al., Phys.Rev. {\\bf C 75} (2007) 065803 and T.A.D.Brown et al., Phys.Rev. {\\bf C 76} (2007) 055801] populating to the ground and first excited states of $^7{\\rm Be}$ is carried out based on the modified two - body potential approach in which the direct astrophysical $S$-factor, $S_{34}(E)$, is expressed in terms of the asymptotic normalization constants for $^3{\\rm {He}}+\\alpha\\to ^7{\\rm {Be}}$ and two additional conditions are involved to verify the peripheral character of the reaction under consideration. The Woods--Saxon potential form is used for the bound ($\\alpha+^3{\\rm {He}}$)- state and the $^3{\\rm {He}}\\alpha$- scattering wave functions. New estimates are obtained for the "indirectly measured", values of the asymptotic normalization constants (the nuclear vertex constants) for $^3{\\rm {He}}+\\alpha\\to^7{\\rm {Be}}(g.s.)$ and $^3{\\rm {He}}+\\alpha\\to^7{\\rm {Be}}(0.429 MeV)$ as well as the astrophysical $S$-factors $S_{34}(E)$ at E$\\le$ 90 keV, including $E$=0. The values of asymptotic normalization constants have been used for getting information about the $\\alpha$-particle spectroscopic factors for the mirror ($^7Li^7{\\rm {Be}}$)-pair.

S. B. Igamov; K. I. Tursunmakhatov; R. Yarmukhamedov

2008-05-28T23:59:59.000Z

349

Determination of the 3He+alpha\\to 7Be asymp. normalization coefficients (nucl. vertex constants) and their application for extrapolation of the 3He(alpha,gamma)7Be astroph. S-factors to the solar energy region  

E-Print Network [OSTI]

A new analysis of the modern precise measured astrophysical $S$ factors for the direct capture $^3He(\\alpha,\\gamma)^7{\\rm {Be}}$ reaction [B.S. Nara Singh {\\it et al.}, Phys.Rev.Lett. {\\bf 93}, 262503 (2004); D. Bemmerer {\\it et al.}, Phys.Rev.Lett. {\\bf 97}, 122502 (2006); F.Confortola {\\it et al.}, Phys.Rev.C {\\bf 75}, 065803 (2007), T.A.D.Brown {\\it et al.}, Phys.Rev. C {\\bf 76}, 055801 (2007) and A Di Leva, {\\it et al.},Phys.Rev.Lett. {\\bf 102}, 232502 (2009)] populating to the ground and first excited states of $^7{\\rm Be}$ is carried out based on the modified two - body potential approach. New estimates are obtained for the $^{\\glqq}$indirectly determined\\grqq\\, values of the asymptotic normalization constants (the nuclear vertex constants) for $^3{\\rm {He}}+\\alpha\\to{\\rm {^7Be}}$(g.s.) and $^3{\\rm {He}}+\\alpha\\to{\\rm {^7Be}}$(0.429 MeV) as well as the astrophysical $S$ factors $S_{34}(E)$ at E$\\le$ 90 keV, including $E$=0. The values of asymptotic normalization constants have been used for getting information about the $\\alpha$-particle spectroscopic factors for the mirror (${\\rm{^7Li}}{\\rm {^7Be}}$)-pair.

S. B. Igamov; Q. I. Tursunmahatov; R. Yarmukhamedov

2010-11-22T23:59:59.000Z

350

Radiation receiver  

DOE Patents [OSTI]

The apparatus for collecting radiant energy and converting same to alternate energy form includes a housing having an interior space and a radiation transparent window allowing, for example, solar radiation to be received in the interior space of the housing. Means are provided for passing a stream of fluid past said window and for injecting radiation absorbent particles in said fluid stream. The particles absorb the radiation and because of their very large surface area, quickly release the heat to the surrounding fluid stream. The fluid stream particle mixture is heated until the particles vaporize. The fluid stream is then allowed to expand in, for example, a gas turbine to produce mechanical energy. In an aspect of the present invention properly sized particles need not be vaporized prior to the entrance of the fluid stream into the turbine, as the particles will not damage the turbine blades. In yet another aspect of the invention, conventional fuel injectors are provided to inject fuel into the fluid stream to maintain the proper temperature and pressure of the fluid stream should the source of radiant energy be interrupted. In yet another aspect of the invention, an apparatus is provided which includes means for providing a hot fluid stream having hot particles disbursed therein which can radiate energy, means for providing a cooler fluid stream having cooler particles disbursed therein, which particles can absorb radiant energy and means for passing the hot fluid stream adjacent the cooler fluid stream to warm the cooler fluid and cooler particles by the radiation from the hot fluid and hot particles. 5 figs.

Hunt, A.J.

1983-09-13T23:59:59.000Z

351

Radiation receiver  

DOE Patents [OSTI]

The apparatus for collecting radiant energy and converting same to alternate energy form includes a housing having an interior space and a radiation transparent window allowing, for example, solar radiation to be received in the interior space of the housing. Means are provided for passing a stream of fluid past said window and for injecting radiation absorbent particles in said fluid stream. The particles absorb the radiation and because of their very large surface area, quickly release the heat to the surrounding fluid stream. The fluid stream particle mixture is heated until the particles vaporize. The fluid stream is then allowed to expand in, for example, a gas turbine to produce mechanical energy. In an aspect of the present invention properly sized particles need not be vaporized prior to the entrance of the fluid stream into the turbine, as the particles will not damage the turbine blades. In yet another aspect of the invention, conventional fuel injectors are provided to inject fuel into the fluid stream to maintain the proper temperature and pressure of the fluid stream should the source of radiant energy be interrupted. In yet another aspect of the invention, an apparatus is provided which includes means for providing a hot fluid stream having hot particles disbursed therein which can radiate energy, means for providing a cooler fluid stream having cooler particles disbursed therein, which particles can absorb radiant energy and means for passing the hot fluid stream adjacent the cooler fluid stream to warm the cooler fluid and cooler particles by the radiation from the hot fluid and hot particles.

Hunt, Arlon J. (Oakland, CA)

1983-01-01T23:59:59.000Z

352

High Speed AB-Solar Sail  

E-Print Network [OSTI]

The Solar sail is a large thin film used to collect solar light pressure for moving of space apparatus. Unfortunately, the solar radiation pressure is very small about 9 mkN/sq.m at Earth's orbit. However, the light force significantly increases up to 0.2 - 0.35 N/sq.m near the Sun. The author offers his research on a new revolutionary highly reflective solar sail which flyby (after special maneuver) near Sun and attains velocity up to 400 km/sec and reaching far planets of the Solar system in short time or enable flights out of Solar system. New, highly reflective sail-mirror allows avoiding the strong heating of the solar sail. It may be useful for probes close to the Sun and Mercury and Venus. Key words: AB-solar sail, highly reflective solar sail, high speed propulsion.

Bolonkin, A

2007-01-01T23:59:59.000Z

353

High Speed AB-Solar Sail  

E-Print Network [OSTI]

The Solar sail is a large thin film used to collect solar light pressure for moving of space apparatus. Unfortunately, the solar radiation pressure is very small about 9 mkN/sq.m at Earth's orbit. However, the light force significantly increases up to 0.2 - 0.35 N/sq.m near the Sun. The author offers his research on a new revolutionary highly reflective solar sail which flyby (after special maneuver) near Sun and attains velocity up to 400 km/sec and reaching far planets of the Solar system in short time or enable flights out of Solar system. New, highly reflective sail-mirror allows avoiding the strong heating of the solar sail. It may be useful for probes close to the Sun and Mercury and Venus. Key words: AB-solar sail, highly reflective solar sail, high speed propulsion.

A. Bolonkin

2007-01-08T23:59:59.000Z

354

Normal Curvature . . . Geodesic Curvature . . .  

E-Print Network [OSTI]

Normal Curvature . . . Geodesic Curvature . . . Home Page Title Page Page 683 of 711 Go Back Full quadratic form associated with a surface. #12;Normal Curvature . . . Geodesic Curvature . . . Home Page Title Page Page 684 of 711 Go Back Full Screen Close Quit The component g is called the geodesic

Gallier, Jean

355

University of Colorado-Boulder Researches Solar-Thermochemical...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

and temperature quenching or in an electrolysis step. The conversion of solar radiation into chemical fuel, such as hydrogen, is an engineering challenge; however,...

356

E-Print Network 3.0 - advanced space radiators Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

of space and time structures of the radiation. Daily calibration factors of the satellite sensors... for solar radiation, local climate, and the space and time local...

357

E-Print Network 3.0 - aerial radiation monitoring Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

pieces... deployed. 12;Multiple Sensors Looking At Earth 12;REMOTE SENSORS Passive Sensors Aerial Cameras... OF REFLECTED RADIATION The sensor detects solar radiation...

358

Solar Easements  

Broader source: Energy.gov [DOE]

Rhode Island allows property owners to establish solar easements in the same manner and with the same effect as a conveyance of an interest in real property. Solar easements must be created in...

359

Solar Forecasting  

Broader source: Energy.gov [DOE]

On December 7, 2012, DOE announced $8 million to fund two solar projects that are helping utilities and grid operators better forecast when, where, and how much solar power will be produced at U.S....

360

Solar Easements  

Broader source: Energy.gov [DOE]

Kansas' solar easement provisions do not create an automatic right to sunlight. Rather, they allow parties to voluntarily enter into solar easement contracts for the purpose of ensuring adequate...

Note: This page contains sample records for the topic "normal solar radiation" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


361

Central solar energy receiver  

DOE Patents [OSTI]

An improved tower-mounted central solar energy receiver for heating air drawn through the receiver by an induced draft fan. A number of vertically oriented, energy absorbing, fin-shaped slats are radially arranged in a number of concentric cylindrical arrays on top of the tower coaxially surrounding a pipe having air holes through which the fan draws air which is heated by the slats which receive the solar radiation from a heliostat field. A number of vertically oriented and wedge-shaped columns are radially arranged in a number of concentric cylindrical clusters surrounding the slat arrays. The columns have two mirror-reflecting sides to reflect radiation into the slat arrays and one energy absorbing side to reduce reradiation and reflection from the slat arrays.

Drost, M. Kevin (Richland, WA)

1983-01-01T23:59:59.000Z

362

Solar heat receiver  

DOE Patents [OSTI]

A receiver is described for converting solar energy to heat a gas to temperatures from 700 to 900/sup 0/C. The receiver is formed to minimize impingement of radiation on the walls and to provide maximum heating at and near the entry of the gas exit. Also, the receiver is formed to provide controlled movement of the gas to be heated to minimize wall temperatures. The receiver is designed for use with gas containing fine heat absorbing particles, such as carbon particles.

Hunt, A.J.; Hansen, L.J.; Evans, D.B.

1982-09-29T23:59:59.000Z

363

Lowry Range Solar Station: Arapahoe County, Colorado (Data)  

DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

A partnership with industry and U.S. Department of Energy's National Renewable Energy Laboratory (NREL) to collect solar data to support future solar power generation in the United States. The measurement station monitors global horizontal, direct normal, and diffuse horizontal irradiance to define the amount of solar energy that hits this particular location. The solar measurement instrumentation is also accompanied by meteorological monitoring equipment to provide scientists with a complete picture of the solar power possibilities.

Yoder, M.; Andreas, A.

364

High-Flux Microchannel Solar Receiver  

Broader source: Energy.gov [DOE]

This fact sheet describes a high-flux, microchannel solar receiver project awarded under the DOE's 2012 SunShot Concentrating Solar Power R&D award program. The team, led by Oregon State University, is working to demonstrate a microchannel-based solar receiver capable of absorbing high solar flux, while using a variety of liquid and gaseous working fluids. High-flux microchannel receivers have the potential to dramatically reduce the size and cost of a solar receiver by minimizing re-radiation and convective losses.

365

Radiation Induced Instability Patrick Hagerty  

E-Print Network [OSTI]

Radiation Induced Instability Patrick Hagerty #3; Department of Mathematics University of Michigan of Michigan Ann Arbor, MI 48109 abloch@math.lsa.umich.edu Michael I. Weinstein z Fundamental Mathematics a central rigid body which can radiate energy through exible components such as solar panels and antennae

Bloch, Anthony

366

Psoriasis and ultraviolet radiation  

SciTech Connect (OSTI)

Prevention and detection screening programs as a public health service in curtailing the ever-increasing incidence of all forms of skin cancer are reviewed. The effect of solar and artificial ultraviolet radiation on the general population and persons with psoriasis is examined. 54 refs.

Farber, E.M.; Nall, L. (Psoriasis Research Institute, Palo Alto, CA (United States))

1993-09-01T23:59:59.000Z

367

Local microwave background radiation  

E-Print Network [OSTI]

An inquiry on a possible local origin for the Microwave Background Radiation is made. Thermal MBR photons are contained in a system called {\\it magnetic bottle} which is due to Earth magnetic field and solar wind particles, mostly electrons. Observational tests are anticipated.

Domingos Soares

2014-11-13T23:59:59.000Z

368

alpha radiation effectively: Topics by E-print Network  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

perturbations at the heliospheric boundaries and local (i.e. within 10-20 AU from the Sun) effects of the solar ionization, charge exchange, solar gravitation and radiation...

369

Solar Mapper  

Broader source: Energy.gov [DOE]

Interactive, online mapping tool providing access to spatial data related to siting utility-scale solar facilities in the southwestern United States.

370

Solar Rights  

Broader source: Energy.gov [DOE]

Maine law requires that any municipal ordinance, bylaw, or regulation adopted after September 30, 2009 regulating solar energy devices on residential property follow certain requirements. The rules...

371

Solar Energy.  

E-Print Network [OSTI]

??This thesis is about Photovoltaic (PV) cells and its stresses in various directions by calculating the power generated using solar cells under different conditions to… (more)

Bafana, Ramzi

2014-01-01T23:59:59.000Z

372

Solar Car  

SciTech Connect (OSTI)

Des Moines Central Academy Middle School students compete in the Solar Car Challenge at the National Science Bowl, May 2 in Washington D.C.

None

2010-01-01T23:59:59.000Z

373

Assessment of solar and wind energy resources in Ethiopia. I. Solar energy  

SciTech Connect (OSTI)

This paper describes how data from a variety of sources are merged to present new countrywide maps of the solar energy distribution over Ethiopia. The spatial coverage of stations with radiation data was found to be unsatisfactory for the purpose of a countrywide solar energy assessment exercise. Therefore, radiation had to be predicted from sunshine hours by employing empirical models. Using data from seven stations in Ethiopia, linear and quadratic correlation relationships between monthly mean daily solar radiation and sunshine hours per day have been developed. These regional models show a distinct improvement over previously employed countrywide models. To produce a national solar-energy distribution profile, a spatial extension of the radiation/sunshine relationships had to be carried out. To do this, the intercepts(a) and slopes(b) of each of the seven linear regression equations and another six from previous studies, completed in neighbouring Sudan, Kenya and Yemen, were used to interpolate the corresponding values to areas between them. Subsequent to these procedures, 142 stations providing only sunshine data were assigned their `appropriate` a and b values to estimate the amount of solar radiation received, which was then used to produce annual and monthly solar radiation distribution maps for Ethiopia. The results show that in all regions solar energy is an abundant resource. 19 refs., 11 figs., 4 tabs.

Drake, F.; Mulugetta, Y. [Univ. of Leeds (United Kingdom)] [Univ. of Leeds (United Kingdom)

1996-09-01T23:59:59.000Z

374

November 21, 2000 PV Lesson Plan 2 Solar Electric Arrays  

E-Print Network [OSTI]

rating of a photovoltaic module is typically quoted as the power output of the module when the incidentNovember 21, 2000 PV Lesson Plan 2 ­ Solar Electric Arrays Prepared for the Oregon Million Solar Roofs Coalition By Frank Vignola ­ University of Oregon Solar Radiation Monitoring Lab John Hocken

Oregon, University of

375

Realistic Solar Surface Convection Simulations Robert F. Stein  

E-Print Network [OSTI]

Realistic Solar Surface Convection Simulations Robert F. Stein Michigan State University, East free simulations with re­ alistic physics of convection near the solar surface. We summarize solar convection is non­local. It is driven from a thin surface thermal boundary layer where radiative

Stein, Robert

376

XI. DIFFUSEGLOBAL CORRELATIONS: SEASONAL VARIATIONS Estimating the performance of a solar system  

E-Print Network [OSTI]

39 XI. DIFFUSE­GLOBAL CORRELATIONS: SEASONAL VARIATIONS Estimating the performance of a solar system requires an accurate assessment of incident solar radiation. Ordinarily, solar radiation-step procedure. First a model is used to estimate the diffuse and direct components from global data. Then each

Oregon, University of

377

Solar energy conversion.  

SciTech Connect (OSTI)

If solar energy is to become a practical alternative to fossil fuels, we must have efficient ways to convert photons into electricity, fuel, and heat. The need for better conversion technologies is a driving force behind many recent developments in biology, materials, and especially nanoscience. The Sun has the enormous untapped potential to supply our growing energy needs. The barrier to greater use of the solar resource is its high cost relative to the cost of fossil fuels, although the disparity will decrease with the rising prices of fossil fuels and the rising costs of mitigating their impact on the environment and climate. The cost of solar energy is directly related to the low conversion efficiency, the modest energy density of solar radiation, and the costly materials currently required. The development of materials and methods to improve solar energy conversion is primarily a scientific challenge: Breakthroughs in fundamental understanding ought to enable marked progress. There is plenty of room for improvement, since photovoltaic conversion efficiencies for inexpensive organic and dye-sensitized solar cells are currently about 10% or less, the conversion efficiency of photosynthesis is less than 1%, and the best solar thermal efficiency is 30%. The theoretical limits suggest that we can do much better. Solar conversion is a young science. Its major growth began in the 1970s, spurred by the oil crisis that highlighted the pervasive importance of energy to our personal, social, economic, and political lives. In contrast, fossil-fuel science has developed over more than 250 years, stimulated by the Industrial Revolution and the promise of abundant fossil fuels. The science of thermodynamics, for example, is intimately intertwined with the development of the steam engine. The Carnot cycle, the mechanical equivalent of heat, and entropy all played starring roles in the development of thermodynamics and the technology of heat engines. Solar-energy science faces an equally rich future, with nanoscience enabling the discovery of the guiding principles of photonic energy conversion and their use in the development of cost-competitive new technologies.

Crabtree, G. W.; Lewis, N. S. (Materials Science Division); (California Inst. of Tech.)

2008-03-01T23:59:59.000Z

378

Solar spectral variations and their influence on concentrator solar cell performance  

E-Print Network [OSTI]

A comparative study is performed to quantify the difference in efficiency and spectral sensitivity between a tandem junction and its spectrum splitting parallel junction counterpart. Direct normal solar spectra in a ...

Broderick, Lirong Z.

379

Monolithic tandem solar cell  

SciTech Connect (OSTI)

It is an object of the invention to provide a monolithic tandem photovoltaic solar cell which is highly radiation resistant and efficient; in which the energy bandgap of the lower subcell can be tailored for specific applications; solar cell comprising layers of InP and GaInAsP (or GaInAs), where said photovoltaic cell is useful, for example, in space power applications; having an improved power-to-mass ratio; in which subcells are lattice-matches; and are both two terminal and three terminal monolithic tandem photovoltaic solar cells. To achieve the foregoing and other objects and in accordance with the purpose of the present invention, as embodied and broadly described herein, the monolithic tandem photovoltaic solar cell may comprise; (a) an InP substrate having an upper surface; (b) a first photoactive subcell on the upper surface of the InP substrate; wherein the first subcell comprises GaInAs (which could include GaInAsP) and includes a homojunction; and (c) a second photoactive subcell on the first subcell; wherein the second subcell comprises InP and includes a homojunction. The cell is described in detail. 5 figs., 2 tabs.

Wanlass, M.W.

1989-11-03T23:59:59.000Z

380

NEW SOLAR COMPOSITION: THE PROBLEM WITH SOLAR MODELS REVISITED  

SciTech Connect (OSTI)

We construct updated solar models with different sets of solar abundances, including the most recent determinations by Asplund et al. The latter work predicts a larger (approx10%) solar metallicity compared to previous measurements by the same authors but significantly lower (approx25%) than the recommended value from a decade ago by Grevesse and Sauval. We compare the results of our models with determinations of the solar structure inferred through helioseismology measurements. The model that uses the most recent solar abundance determinations predicts the base of the solar convective envelope to be located at R {sub CZ} = 0.724 R{sub sun} and a surface helium mass fraction of Y{sub surf} = 0.231. These results are in conflict with helioseismology data (R{sub CZ} = 0.713 +- 0.001 R{sub sun} and Y{sub surf} = 0.2485 +- 0.0035) at 5sigma and 11sigma levels, respectively. Using the new solar abundances, we calculate the magnitude by which radiative opacities should be modified in order to restore agreement with helioseismology. We find that a maximum change of approx15% at the base of the convective zone is required with a smooth decrease toward the core, where the change needed is approx5%. The required change at the base of the convective envelope is about half the value estimated previously. We also present the solar neutrino fluxes predicted by the new models. The most important changes brought about by the new solar abundances are the increase by approx10% in the predicted {sup 13}N and {sup 15}O fluxes that arise mostly due to the increase in the C and N abundances in the newly determined solar composition.

Serenelli, Aldo M.; Asplund, Martin [Max Planck Institute for Astrophysics, Karl Schwarzschild Str. 1, Garching D-85471 (Germany); Basu, Sarbani [Department of Astronomy, Yale University, P.O. Box 208101, New Haven, CT 06520-8101 (United States); Ferguson, Jason W. [Department of Physics, Wichita State University, Wichita, KS 67260-0032 (United States)

2009-11-10T23:59:59.000Z

Note: This page contains sample records for the topic "normal solar radiation" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


381

Geant4 applications in the heliospheric radiation environment  

E-Print Network [OSTI]

The high energy ionizing radiation environment in the solar system consists of three main sources: the radiation belts, galactic cosmic rays and solar energetic particles. Geant4 is a Monte Carlo radiation transport simulation toolkit, with applications in areas as high energy physics, nuclear physics, astrophysics or medical physics research. In this poster, Geant4 applications to model and study the effects of the heliospheric radiation environment are presented. Specific applications are being developed to study the effect of the radiation environment on detector components, to describe the response and to optimise the design of radiation monitors for future space missions and to predict the radiation environment in Mars surface, orbits and moons.

Pedro Brogueira; Patrícia Gonçalves; Ana Keating; Dalmiro Maia; Mário Pimenta; Bernardo Tomé

2007-09-11T23:59:59.000Z

382

Solar mechanics thermal response capabilities.  

SciTech Connect (OSTI)

In many applications, the thermal response of structures exposed to solar heat loads is of interest. Solar mechanics governing equations were developed and integrated with the Calore thermal response code via user subroutines to provide this computational simulation capability. Solar heat loads are estimated based on the latitude and day of the year. Vector algebra is used to determine the solar loading on each face of a finite element model based on its orientation relative to the sun as the earth rotates. Atmospheric attenuation is accounted for as the optical path length varies from sunrise to sunset. Both direct and diffuse components of solar flux are calculated. In addition, shadowing of structures by other structures can be accounted for. User subroutines were also developed to provide convective and radiative boundary conditions for the diurnal variations in air temperature and effective sky temperature. These temperature boundary conditions are based on available local weather data and depend on latitude and day of the year, consistent with the solar mechanics formulation. These user subroutines, coupled with the Calore three-dimensional thermal response code, provide a complete package for addressing complex thermal problems involving solar heating. The governing equations are documented in sufficient detail to facilitate implementation into other heat transfer codes. Suggestions for improvements to the approach are offered.

Dobranich, Dean D.

2009-07-01T23:59:59.000Z

383

Gain Scheduled Control of a Solar Power Plant Tor A. Johansen1  

E-Print Network [OSTI]

Gain Scheduled Control of a Solar Power Plant Tor A. Johansen1 , Kenneth J. Hunt2 and Idar Petersen to a pilot-scale solar power plant is described. A eld of parabolic collectors focus the solar radiation onto a tube where oil is pumped through in order to collect the solar power. The control problem is to keep

Johansen, Tor Arne

384

Energy-based Control of a Distributed Solar Collector Tor A. Johansena  

E-Print Network [OSTI]

Energy-based Control of a Distributed Solar Collector Field Tor A. Johansena Camilla Storaaa that the primary energy source, solar radiation, cannot be manipulated. The distributed solar collector eld may, Norway. Model-based control of the outlet temperature of a distributed solar col- lector eld is studied

Johansen, Tor Arne

385

A 927 MHz Solar Powered Active Antenna Oscillator Beacon Signal Generator  

E-Print Network [OSTI]

. Properly placed solar cells and a regulator are used to bias the device by scavenging solar energy from technology, which scavenges through solar energy the power necessary for operation. Starting from a folded the radiation performances. After that, solar cells were properly inserted for energy scavenging purposes

Tentzeris, Manos

386

Invariant Manifolds for the Station Keeping of Solar Sails Ariadna Farres, AJ  

E-Print Network [OSTI]

Invariant Manifolds for the Station Keeping of Solar Sails Ariadna Farr´es, AJ Universitat de 2 / 45 inria-00585612,version1-14Apr2011 #12;Background What is a Solar Sail ? Solar Sails are a new concept of spacecraft propulsion that takes ad- vantage of the Solar radiation pressure to propel

Boyer, Edmond

387

Detection of solar events  

DOE Patents [OSTI]

A flux detection apparatus can include a radioactive sample having a decay rate capable of changing in response to interaction with a first particle or a field, and a detector associated with the radioactive sample. The detector is responsive to a second particle or radiation formed by decay of the radioactive sample. The rate of decay of the radioactive sample can be correlated to flux of the first particle or the field. Detection of the first particle or the field can provide an early warning for an impending solar event.

Fischbach, Ephraim; Jenkins, Jere

2013-08-27T23:59:59.000Z

388

Solar Rights  

Broader source: Energy.gov [DOE]

Hawaii law prohibits the creation of any covenant or restriction contained in any document restricting the installation or use of a solar energy system on a residential dwelling or townhouse. ...

389

Engineering the optical properties of luminescent solar concentrators at the molecular scale  

E-Print Network [OSTI]

Luminescent Solar Concentrators (LSCs) concentrate solar radiation onto photovoltaic (PV) cells using an inexpensive collector plate to absorb incoming photons and waveguide fluorescently re-emitted photons to PVs at the ...

Mulder, Carlijn Lucinde

2012-01-01T23:59:59.000Z

390

Front contact solar cell with formed emitter  

SciTech Connect (OSTI)

A bipolar solar cell includes a backside junction formed by an N-type silicon substrate and a P-type polysilicon emitter formed on the backside of the solar cell. An antireflection layer may be formed on a textured front surface of the silicon substrate. A negative polarity metal contact on the front side of the solar cell makes an electrical connection to the substrate, while a positive polarity metal contact on the backside of the solar cell makes an electrical connection to the polysilicon emitter. An external electrical circuit may be connected to the negative and positive metal contacts to be powered by the solar cell. The positive polarity metal contact may form an infrared reflecting layer with an underlying dielectric layer for increased solar radiation collection.

Cousins, Peter John

2014-11-04T23:59:59.000Z

391

Front contact solar cell with formed emitter  

DOE Patents [OSTI]

A bipolar solar cell includes a backside junction formed by an N-type silicon substrate and a P-type polysilicon emitter formed on the backside of the solar cell. An antireflection layer may be formed on a textured front surface of the silicon substrate. A negative polarity metal contact on the front side of the solar cell makes an electrical connection to the substrate, while a positive polarity metal contact on the backside of the solar cell makes an electrical connection to the polysilicon emitter. An external electrical circuit may be connected to the negative and positive metal contacts to be powered by the solar cell. The positive polarity metal contact may form an infrared reflecting layer with an underlying dielectric layer for increased solar radiation collection.

Cousins, Peter John (Menlo Park, CA)

2012-07-17T23:59:59.000Z

392

DIRECT NORMAL IRRADIANCE FOR CSP BASED ON SATELLITE IMAGES OF METEOSAT SECOND  

E-Print Network [OSTI]

DIRECT NORMAL IRRADIANCE FOR CSP BASED ON SATELLITE IMAGES OF METEOSAT SECOND GENERATION A. Hammer1 Ertragsprognose Solarthermischer Kraftwerke ­ standardization of yield prognosis for solar thermal power plants). As for concentrating solar power (CSP) the frequency distribution of DNI is of special importance, special attention

Heinemann, Detlev

393

Residential Solar Valuation Rates  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Residential Solar Valuation Rates Karl R. Rbago Rbago Energy LLC 1 The Ideal Residential Solar Tariff Fair to the utility and non-solar customers Fair compensation to...

394

Solar powered desalination system  

E-Print Network [OSTI]

2008, uses concentrated solar power to split water. Figurethe main reason the potential for solar power is boundless.a clean energy source, solar power is inexhaustible, fairly

Mateo, Tiffany Alisa

2011-01-01T23:59:59.000Z

395

CALIFORNIA SOLAR DATA MANUAL  

E-Print Network [OSTI]

Solar Energy Laboratory 1303 Engineering Research Building UniversitySolar Energy Laboratory 1303 Engineering Research laboratory UniversitySolar Energy Group, Energy and Lawrence Berkeley Laboratory University

Berdahl, P.

2010-01-01T23:59:59.000Z

396

Nanocrystal Solar Cells  

E-Print Network [OSTI]

Nov, 2005). Chapter 4 Hybrid solar cells with 3-dimensionalinorganic nanocrystal solar cells 5.1 Introduction In recentoperation of organic based solar cells and distinguish them

Gur, Ilan

2006-01-01T23:59:59.000Z

397

CALIFORNIA SOLAR DATA MANUAL  

E-Print Network [OSTI]

room )I I( I I ,i I CALIFORNIA SOLAR DATA MANUAL I. ! I ienergy resource. The California Solar Data Manual describestowards fulfilling California's solar data needs is the

Berdahl, P.

2010-01-01T23:59:59.000Z

398

CALIFORNIA SOLAR DATA MANUAL  

E-Print Network [OSTI]

for Reno, Nevada . . . . . (Q) Solar Data for China Lake/using Nominal Solar Profiles China Lake/Inyokern ANGLE OFStations - China Lake, Edwards Monthly Latitude: Jan SOLAR

Berdahl, P.

2010-01-01T23:59:59.000Z

399

Solar forecasting review  

E-Print Network [OSTI]

Figure 6.3: Birds-eye view of solar array deployment siteBirds-eye 7. Birds-eye view of of solar solar array array

Inman, Richard Headen

2012-01-01T23:59:59.000Z

400

Solar Contractor Licensing  

Broader source: Energy.gov [DOE]

The California Contractors State License Board administers contractor licenses. The C-46 Solar Contractor license covers active solar water and space heating systems, solar pool heating systems,...

Note: This page contains sample records for the topic "normal solar radiation" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


401

Solar Resource Assessment  

Broader source: Energy.gov [DOE]

DOE solar resource research focuses on understanding historical solar resource patterns and making future predictions, both of which are needed to support reliable power system operation. As solar...

402

Solar powered desalination system  

E-Print Network [OSTI]

As a clean energy source, solar power is inexhaustible,renewables for energy sources, including solar power. Also,Requirements Energy Source Natural Gas Nuclear Solar Wind

Mateo, Tiffany Alisa

2011-01-01T23:59:59.000Z

403

Radiation: Radiation Control (Indiana)  

Broader source: Energy.gov [DOE]

It is the policy of the state to encourage the constructive uses of radiation and to control its harmful effects. This section contains regulations pertaining to the manufacture, use,...

404

Solar Position Algorithm for Solar Radiation Applications (Revised)  

Office of Scientific and Technical Information (OSTI)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary)morphinanInformation InInformation In closing, an overarchingInformation science.govInformation* - ' E

405

E-Print Network 3.0 - am0 calibrated solar Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Summary: 13 VI. SENSOR CALIBRATIONS One of the most important aspects of high quality solar radiation... measurements is the accurate calibration of sensors and recording...

406

Passive solar design handbook. Volume two of two volumes: passive solar design analysis  

SciTech Connect (OSTI)

A manual for the design and performance evaluation and analysis of passive solar heating systems is presented. Two passive solar building types are analyzed: direct gain and thermal storage walls. Rules of thumb for the schematic design phase and simplified procedures for the design development phase are described. Analysis methods for the construction documents phase are given. The design procedure for fan-forced rock beds for hybrid systems is presented. Economic analysis methods for passive solar buildings are described. Tables of monthly average solar radiation, temperature, and degree-days for various locations in the US and southern Canada are included. (WHK)

Balcomb, J.D.; Barley, D.; McFarland, R.; Perry, J. Jr.; Wray, W.; Noll, S.

1980-01-01T23:59:59.000Z

407

Solar ADEPT: Efficient Solar Energy Systems  

SciTech Connect (OSTI)

Solar ADEPT Project: The 7 projects that make up ARPA-E's Solar ADEPT program, short for 'Solar Agile Delivery of Electrical Power Technology,' aim to improve the performance of photovoltaic (PV) solar energy systems, which convert the sun's rays into electricity. Solar ADEPT projects are integrating advanced electrical components into PV systems to make the process of converting solar energy to electricity more efficient.

None

2011-01-01T23:59:59.000Z

408

REVIEW OF SCIENTIFIC INSTRUMENTS 85, 106103 (2014) Note: Calibration of EBT3 radiochromic film for measuring solar  

E-Print Network [OSTI]

work has focused on the use of film detectors for passive monitoring the solar (UVA + UVB) radiation. used the EBT film2 and EBT2 film12 for measuring solar (UVA + UVB) exposures. The EBT film had been to assess the feasibility of using the EBT3 film for measuring solar UV radiation and to provide information

Yu, K.N.

409

Concentrating Solar Power  

SciTech Connect (OSTI)

Summarizes the goals and activities of the DOE Solar Energy Technologies Program efforts within its concentrating solar power subprogram.

Not Available

2008-09-01T23:59:59.000Z

410

RADIATION MONITORING  

E-Print Network [OSTI]

of Monitoring for Radiation Protection of Workers" in ICRPNo. 9, in "Advances in Radiation Protection and Dosimetry inDosimetry f o r Stray Radiation Monitoring on the CERN S i t

Thomas, R.H.

2010-01-01T23:59:59.000Z

411

Central solar-energy receiver  

DOE Patents [OSTI]

An improved tower-mounted central solar energy receiver for heating air drawn through the receiver by an induced draft fan is described. A number of vertically oriented, energy absorbing, fin-shaped slats are radially arranged in a number of concentric cylindrical arrays on top of the tower coaxially surrounding a pipe having air holes through which the fan draws air which is heated by the slats which receive the solar radiation from a heliostat field. A number of vertically oriented and wedge-shaped columns are radially arranged in a number of concentric cylindrical clusters surrounding the slat arrays. The columns have two mirror-reflecting sides to reflect radiation into the slat arrays and one energy absorbing side to reduce reradiation and reflection from the slat arrays.

Not Available

1981-10-27T23:59:59.000Z

412

Apparatus and method for solar coal gasification  

DOE Patents [OSTI]

Apparatus for using focused solar radiation to gasify coal and other carbonaceous materials. Incident solar radiation is focused from an array of heliostats onto a tower-mounted secondary mirror which redirects the focused solar radiation down through a window onto the surface of a vertically-moving bed of coal, or a fluidized bed of coal, contained within a gasification reactor. The reactor is designed to minimize contact between the window and solids in the reactor. Steam introduced into the gasification reactor reacts with the heated coal to produce gas consisting mainly of carbon monoxide and hydrogen, commonly called "synthesis gas", which can be converted to methane, methanol, gasoline, and other useful products. One of the novel features of the invention is the generation of process steam at the rear surface of the secondary mirror.

Gregg, David W. (Moraga, CA)

1980-01-01T23:59:59.000Z

413

Lefvre M., Rigollier C., Cros S., Wald L., 2003, Toward a solar climatological database: the HelioClim project. In Proceedings of 22nd EARSeL Annual Symposium "Geoinformation for European-wide integration", 4-6 June 2002, Prague, Czech Republic. To-  

E-Print Network [OSTI]

series of solar radiation maps at ground level over Europe, Africa and Atlantic Ocean from 1985 up to now sensing, Meteosat, solar radiation, climatology ABSTRACT: The HelioClim project aims at producing temporal solar climatological database. 1 INTRODUCTION Time series of solar radiation available at ground level

Paris-Sud XI, Université de

414

National Solar Radiation Database | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data CenterFranconia, Virginia: Energy Resources Jump to:46 -Energieprojekte3InformationofServices TMS Inc | OpenInformationDatabase, or

415

CUTTING SOLAR RED TAPECUTTING SOLAR RED TAPE Evergreen State Solar PartnershipEvergreen State Solar Partnership  

E-Print Network [OSTI]

CUTTING SOLAR RED TAPECUTTING SOLAR RED TAPE Evergreen State Solar PartnershipEvergreen State Solar Partnership Rooftop Solar Challenge 1 Sunshot #12;WASHINGTON PV CONTEXTWASHINGTON PV CONTEXT 285 cities, 39 Installations happen where process is easier #12;EVERGREEN STATE SOLAR PARTNERSHIP Commerce NWSEEDEdmonds

416

Solar Thermal Reactor Materials Characterization  

SciTech Connect (OSTI)

Current research into hydrogen production through high temperature metal oxide water splitting cycles has created a need for robust high temperature materials. Such cycles are further enhanced by the use of concentrated solar energy as a power source. However, samples subjected to concentrated solar radiation exhibited lifetimes much shorter than expected. Characterization of the power and flux distributions representative of the High Flux Solar Furnace(HFSF) at the National Renewable Energy Laboratory(NREL) were compared to ray trace modeling of the facility. In addition, samples of candidate reactor materials were thermally cycled at the HFSF and tensile failure testing was performed to quantify material degradation. Thermal cycling tests have been completed on super alloy Haynes 214 samples and results indicate that maximum temperature plays a significant role in reduction of strength. The number of cycles was too small to establish long term failure trends for this material due to the high ductility of the material.

Lichty, P. R.; Scott, A. M.; Perkins, C. M.; Bingham, C.; Weimer, A. W.

2008-03-01T23:59:59.000Z

417

Decreased aortic growth and middle aortic syndrome in patients with neuroblastoma after radiation therapy  

E-Print Network [OSTI]

2004) Radiation doses in pediatric radiology: influence ofPediatric thoracic aorta: normal measurements determined with CT. Radiology

2009-01-01T23:59:59.000Z

418

Current and lattice matched tandem solar cell  

DOE Patents [OSTI]

A multijunction (cascade) tandem photovoltaic solar cell device is fabricated of a Ga.sub.x In.sub.1-x P (0.505.ltoreq.X.ltoreq.0.515) top cell semiconductor lattice matched to a GaAs bottom cell semiconductor at a low-resistance heterojunction, preferably a p+/n+ heterojunction between the cells. The top and bottom cells are both lattice matched and current matched for high efficiency solar radiation conversion to electrical energy.

Olson, Jerry M. (Lakewood, CO)

1987-01-01T23:59:59.000Z

419

Energy savings obtainable through passive solar techniques  

SciTech Connect (OSTI)

A passive solar energy system is one in which the thermal energy flow is by natural means, that is by radiation, conduction, or natural convection. The purpose of the paper is to provide a survey of passive solar heating experience, especially in the US. Design approaches are reviewed and examples shown. Misconceptions are discussed. Advantages are listed. The Los Alamos program of performance simulation and evaluation is described and a simplified method of performance estimation is outlined.

Balcomb, J.D.

1980-01-01T23:59:59.000Z

420

Laser-induced differential normalized fluorescence method for cancer diagnosis  

DOE Patents [OSTI]

An apparatus and method for cancer diagnosis are disclosed. The diagnostic method includes the steps of irradiating a tissue sample with monochromatic excitation light, producing a laser-induced fluorescence spectrum from emission radiation generated by interaction of the excitation light with the tissue sample, and dividing the intensity at each wavelength of the laser-induced fluorescence spectrum by the integrated area under the laser-induced fluorescence spectrum to produce a normalized spectrum. A mathematical difference between the normalized spectrum and an average value of a reference set of normalized spectra which correspond to normal tissues is calculated, which provides for amplifying small changes in weak signals from malignant tissues for improved analysis. The calculated differential normalized spectrum is correlated to a specific condition of a tissue sample. 5 figs.

Vo-Dinh, T.; Panjehpour, M.; Overholt, B.F.

1996-12-03T23:59:59.000Z

Note: This page contains sample records for the topic "normal solar radiation" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


421

Laser-induced differential normalized fluorescence method for cancer diagnosis  

DOE Patents [OSTI]

An apparatus and method for cancer diagnosis are disclosed. The diagnostic method includes the steps of irradiating a tissue sample with monochromatic excitation light, producing a laser-induced fluorescence spectrum from emission radiation generated by interaction of the excitation light with the tissue sample, and dividing the intensity at each wavelength of the laser-induced fluorescence spectrum by the integrated area under the laser-induced fluorescence spectrum to produce a normalized spectrum. A mathematical difference between the normalized spectrum and an average value of a reference set of normalized spectra which correspond to normal tissues is calculated, which provides for amplifying small changes in weak signals from malignant tissues for improved analysis. The calculated differential normalized spectrum is correlated to a specific condition of a tissue sample.

Vo-Dinh, Tuan (Knoxville, TN); Panjehpour, Masoud (Knoxville, TN); Overholt, Bergein F. (Knoxville, TN)

1996-01-01T23:59:59.000Z

422

Solar Resource Characterization; Session: Modeling and Analysis (Presentation)  

SciTech Connect (OSTI)

This project supports the Solar America Initiative by: (1) meeting increasing demands for expertise in and products on solar radiation data and models--production and distribution of reliable, accurate domestic and international solar resource data, benchmarking and cross-comparison of solar irradiance models; and coordination with the international community (IEA/SHC Task 36, WMO); (2) reducing data uncertainties and increasing temporal and spatial data resolutions; (3) developing and testing short term solar resource forecasts; (4) evaluating methods for producing long term data sets from short term observations; and (5) conducting measurement activities at selected sites.

Renne, D.

2008-04-01T23:59:59.000Z

423

Geiger M., Diabat L., Mnard L., Wald L., 2002. A web service for controlling the quality of measurements of global solar irradiation. Solar Energy, Vol. 73, No 6, pp. 475-480  

E-Print Network [OSTI]

sensitive sensors measure the downward solar radiation flux on a horizontal surface during a given time of measurements of global solar irradiation. Solar Energy, Vol. 73, No 6, pp. 475-480 Copyright Ecole des Mines de Paris -Armines - UFAE 1 A WEB SERVICE FOR CONTROLLING THE QUALITY OF MEASUREMENTS OF GLOBAL SOLAR

Paris-Sud XI, Université de

424

Solar energy is often perceived as "good for Arizona or Florida," not for New York. This presentation shows that misconceptions about solar energy stand in the way of unique  

E-Print Network [OSTI]

Solar energy is often perceived as "good for Arizona or Florida," not for New York. This presentation shows that misconceptions about solar energy stand in the way of unique opportunities for clean of solar radiation received at the earth's surface. In fact, the difference in the solar energy collectable

Perez, Richard R.

425

SDI: Solar Dome Instrument for Solar Irradiance Monitoring Tao Liu1, Ankur U. Kamthe1, Varick L. Erickson1, Carlos F. M. Coimbra2 and Alberto E. Cerpa1  

E-Print Network [OSTI]

SDI: Solar Dome Instrument for Solar Irradiance Monitoring Tao Liu1, Ankur U. Kamthe1, Varick L data for ground solar irradiance (direct normal and global irradiance) is a major obstacle for the de- velopment of adequate policies to promote and take advan- tage of existing solar technologies. Although

Cerpa, Alberto E.

426

Solar Eclipse Monitoring for Solar Energy Applications Using the Solar and Moon Position Algorithms  

SciTech Connect (OSTI)

This report includes a procedure for implementing an algorithm (described by Jean Meeus) to calculate the moon's zenith angle with uncertainty of +/-0.001 degrees and azimuth angle with uncertainty of +/-0.003 degrees. The step-by-step format presented here simplifies the complicated steps Meeus describes to calculate the Moon's position, and focuses on the Moon instead of the planets and stars. It also introduces some changes to accommodate for solar radiation applications.

Reda, I.

2010-03-01T23:59:59.000Z

427

IAA-AAS-DyCoSS1 -11-03 STATION KEEPING OF A SOLAR SAIL AROUND A HALO ORBIT  

E-Print Network [OSTI]

to deal with the station keeping of a solar sail around a Halo orbit. We first need to understandIAA-AAS-DyCoSS1 -11-03 STATION KEEPING OF A SOLAR SAIL AROUND A HALO ORBIT Ariadna Farr´es and `Angel Jorba Solar sails are a concept of spacecraft propulsion that takes advantage of solar radiation

Barcelona, Universitat de

428

CURRENT SCIENCE, VOL. 106, NO. 5, 10 MARCH 2014 665 What makes Gujarat a hotspot for solar energy investments?  

E-Print Network [OSTI]

energy investments? Komalirani Yenneti With over 300 days of sunshine and solar radiation of 5.6­6.0 kWh/m2 /day (refs 1, 2), the state of Gujarat has a potential of generating 750 GW from solar energy3 II, the project is expected to generate about 500 MW of solar energy. All this growth in the solar

Joshi, Yogesh Moreshwar

429

Boston Massachusetts: Solar in Action (Brochure), Solar America...  

Broader source: Energy.gov (indexed) [DOE]

Solar America Cities, Energy Efficiency & Renewable Energy (EERE) San Francisco, California: Solar in Action (Brochure), Solar America Cities, Energy Efficiency &...

430

The risks and efficacy of solar geoengineering  

SciTech Connect (OSTI)

Solar geoengineering may enable a significant reduction in climate risks by partially offsetting climate change due to increasing greenhouse gases, however this emerging technology entails novel risks and uncertainties along with serious challenges to global governance. I will attempt a rough summary of the physics of solar geoengineering and present recent findings regarding (a) the climate's response to radiative forcing by stratospheric aerosols, (b) methods of producing appropriate aerosol distributions, and (c) risks. In closing I will discuss the trade-off between solar geoengineering, emissions reductions and adaptation in climate policy.

Keith, David [Harvard University

2012-12-05T23:59:59.000Z

431

Solar energy thermalization and storage device  

DOE Patents [OSTI]

A passive solar thermalization and thermal energy storage assembly which is visually transparent. The assembly consists of two substantial parallel, transparent wall members mounted in a rectangular support frame to form a liquid-tight chamber. A semitransparent thermalization plate is located in the chamber, substantially paralled to and about equidistant from the transparent wall members to thermalize solar radiation which is stored in a transparent thermal energy storage liquid which fills the chamber. A number of the devices, as modules, can be stacked together to construct a visually transparent, thermal storage wall for passive solar-heated buildings.

McClelland, John F. (Ames, IA)

1981-09-01T23:59:59.000Z

432

Recent developments for realistic solar models  

SciTech Connect (OSTI)

The 'solar abundance problem' has triggered a renewed interest in revising the concept of SSM from different perspectives: 1) constituent microphysics: equation of state, nuclear rates, radiative opacities; 2) constituent macrophysics: the physical processes impact the evolution of the Sun and its present-day structure, e.g. dynamical processes induced by rotation, presence of magnetic fields; 3) challenge the hypothesis that the young Sun was chemically homogeneous: the possible interaction of the young Sun with its protoplanetary disk. Here, I briefly review and then present a (personal) view on recent advances and developments on solar modeling, part of them carried out as attempts to solve the solar abundance problem.

Serenelli, Aldo M. [Institute of Space Sciences (CSIC-IEEC), Campus UAB, Bellaterra, 08193 (Spain)

2014-05-02T23:59:59.000Z

433

Solar Impulse's Solar-Powered Plane  

ScienceCinema (OSTI)

Solar Impulse lands in Washington, DC at Washington Dulles International Airport as part of its journey across the United States. Secretary Ernest Moniz speaks about how advancements like those at the Department of Energy are leading the way for innovations like the solar-powered plane. Footage of the solar-powered plane courtesy of Solar Impulse.

Moniz, Ernest; Piccard, Bertrand; Reicher, Dan

2014-01-07T23:59:59.000Z

434

Petrovay: Solar physics Helioseismology SOLAR OSCILLATIONS: INTRODUCTION  

E-Print Network [OSTI]

: Solar oscillations first observed by both Doppler and intensity method (Leighton, Noyes & Simon 1962: ApPetrovay: Solar physics Helioseismology SOLAR OSCILLATIONS: INTRODUCTION Small departures from hydrostatic equilibrium caused by ­ turbulent convection ­ localized events related to solar activity (e

Petrovay, Kristóf

435

Solar Impulse's Solar-Powered Plane  

SciTech Connect (OSTI)

Solar Impulse lands in Washington, DC at Washington Dulles International Airport as part of its journey across the United States. Secretary Ernest Moniz speaks about how advancements like those at the Department of Energy are leading the way for innovations like the solar-powered plane. Footage of the solar-powered plane courtesy of Solar Impulse.

Moniz, Ernest; Piccard, Bertrand; Reicher, Dan

2013-07-08T23:59:59.000Z

436

Solar-thermal hybridization of Advanced Zero Emissions Power Plants  

E-Print Network [OSTI]

Carbon Dioxide emissions from power production are believed to have significant contributions to the greenhouse effect and global warming. Alternative energy resources, such as solar radiation, may help abate emissions but ...

El Khaja, Ragheb Mohamad Fawaz

2012-01-01T23:59:59.000Z

437

Incomplete Exciton Harvesting from Fullerenes in Bulk Heterojunction Solar  

E-Print Network [OSTI]

Incomplete Exciton Harvesting from Fullerenes in Bulk Heterojunction Solar Cells George F. Burkhard generation (absorp- tion), exciton harvesting (the process of excitons migrating to the donor materials decay radiatively, so exciton harvesting is usually evaluated by observing photolumines- cence

McGehee, Michael

438

Solar absorption by Mie resonances in cloud droplets  

E-Print Network [OSTI]

on the enhancement factor for absorption of light by carbonKlett JD. Black carbon and absorption of solar radiation bySize parameter; Particle absorption; Water clouds; Aerosols

Zender, Charles S; Talamantes, Jorge

2006-01-01T23:59:59.000Z

439

01.07.2013, 2013_EnviroInfo_wald_hc1_short.doc HelioClim-1: 21-years of daily values in solar radiation in one-click  

E-Print Network [OSTI]

manuscript, published in "27th International Conference on Informatics for Environmental Protection, Hambourg as the main use of these data relates to investment decision in solar plants and selection of appropriate

Paris-Sud XI, Université de

440

Berkeley, California: Solar in Action (Brochure), Solar America...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Berkeley, California: Solar in Action (Brochure), Solar America Cities, Energy Efficiency & Renewable Energy (EERE) Berkeley, California: Solar in Action (Brochure), Solar America...

Note: This page contains sample records for the topic "normal solar radiation" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


441

China Glass Solar aka CG Solar formerly Weihai Bluestar Terra...  

Open Energy Info (EERE)

Solar aka CG Solar formerly Weihai Bluestar Terra Photovoltaic Co Ltd Jump to: navigation, search Name: China Glass Solar (aka CG Solar, formerly Weihai Bluestar Terra Photovoltaic...

442

Tucson, Arizona: Solar in Action (Brochure), Solar America Cities...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Tucson, Arizona: Solar in Action (Brochure), Solar America Cities, Energy Efficiency & Renewable Energy (EERE) Tucson, Arizona: Solar in Action (Brochure), Solar America Cities,...

443

Austin, Texas: Solar in Action (Brochure), Solar America Cities...  

Broader source: Energy.gov (indexed) [DOE]

Austin, Texas: Solar in Action (Brochure), Solar America Cities, Energy Efficiency & Renewable Energy (EERE) Austin, Texas: Solar in Action (Brochure), Solar America Cities, Energy...

444

Pittsburgh, Pennsylvania: Solar in Action (Brochure), Solar America...  

Energy Savers [EERE]

Pittsburgh, Pennsylvania: Solar in Action (Brochure), Solar America Cities, Energy Efficiency & Renewable Energy (EERE) Pittsburgh, Pennsylvania: Solar in Action (Brochure), Solar...

445

Seattle, Washington: Solar in Action (Brochure), Solar America...  

Broader source: Energy.gov (indexed) [DOE]

Seattle, Washington: Solar in Action (Brochure), Solar America Cities, Energy Efficiency & Renewable Energy (EERE) Seattle, Washington: Solar in Action (Brochure), Solar America...

446

Knoxville, Tennessee: Solar in Action (Brochure), Solar America...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Knoxville, Tennessee: Solar in Action (Brochure), Solar America Cities, Energy Efficiency & Renewable Energy (EERE) Knoxville, Tennessee: Solar in Action (Brochure), Solar America...

447

EIS-0449: Solar Millennium Blythe Solar Power Project in Riverside...  

Broader source: Energy.gov (indexed) [DOE]

9: Solar Millennium Blythe Solar Power Project in Riverside County, CA EIS-0449: Solar Millennium Blythe Solar Power Project in Riverside County, CA December 10, 2010 EIS-0449:...

448

EA-1683: Abengoa Solar's Solana Concentrating Solar Power Facility...  

Broader source: Energy.gov (indexed) [DOE]

83: Abengoa Solar's Solana Concentrating Solar Power Facility, Gila Bend, AZ EA-1683: Abengoa Solar's Solana Concentrating Solar Power Facility, Gila Bend, AZ May 3, 2010 EA-1683:...

449

San Antonio, Texas: Solar in Action (Brochure), Solar America...  

Energy Savers [EERE]

San Antonio, Texas: Solar in Action (Brochure), Solar America Cities, Energy Efficiency & Renewable Energy (EERE) San Antonio, Texas: Solar in Action (Brochure), Solar America...

450

Denver, Colorado: Solar in Action (Brochure), Solar America Cities...  

Energy Savers [EERE]

Denver, Colorado: Solar in Action (Brochure), Solar America Cities, Energy Efficiency & Renewable Energy (EERE) Denver, Colorado: Solar in Action (Brochure), Solar America Cities,...

451

Milwaukee, Wisconsin: Solar in Action (Brochure), Solar America...  

Energy Savers [EERE]

Milwaukee, Wisconsin: Solar in Action (Brochure), Solar America Cities, Energy Efficiency & Renewable Energy (EERE) Milwaukee, Wisconsin: Solar in Action (Brochure), Solar America...

452

San Diego, California: Solar in Action (Brochure), Solar America...  

Broader source: Energy.gov (indexed) [DOE]

San Diego, California: Solar in Action (Brochure), Solar America Cities, Energy Efficiency & Renewable Energy (EERE) San Diego, California: Solar in Action (Brochure), Solar...

453

Ann Arbor, Michigan: Solar in Action (Brochure), Solar America...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Ann Arbor, Michigan: Solar in Action (Brochure), Solar America Cities, Energy Efficiency & Renewable Energy (EERE) Ann Arbor, Michigan: Solar in Action (Brochure), Solar America...

454

Madison, Wisconsin: Solar in Action (Brochure), Solar America...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Madison, Wisconsin: Solar in Action (Brochure), Solar America Cities, Energy Efficiency & Renewable Energy (EERE) Madison, Wisconsin: Solar in Action (Brochure), Solar America...

455

Solar Neutrinos  

E-Print Network [OSTI]

Experimental work with solar neutrinos has illuminated the properties of neutrinos and tested models of how the sun produces its energy. Three experiments continue to take data, and at least seven are in various stages of planning or construction. In this review, the current experimental status is summarized, and future directions explored with a focus on the effects of a non-zero theta-13 and the interesting possibility of directly testing the luminosity constraint. Such a confrontation at the few-percent level would provide a prediction of the solar irradiance tens of thousands of years in the future for comparison with the present-day irradiance. A model-independent analysis of existing low-energy data shows good agreement between the neutrino and electromagnetic luminosities at the +/- 20 % level.

R. G. H. Robertson

2006-02-05T23:59:59.000Z

456

Instantaneous Power Radiated from Magnetic Dipole Moments  

E-Print Network [OSTI]

We compute the power radiated per unit solid angle of a moving magnetic dipole moment, and its instantaneous radiated power, both non-relativistically and relativistically. This is then applied to various interesting situations: solar neutrons, electron synchrotrons and cosmological Dirac neutrinos. Concerning the latter, we show that hypothesized early-universe Big Bang conditions allow for neutrino radiation cooling and provide an energy loss-mechanism for subsequent neutrino condensation.

Peter D. Morley; Douglas J. Buettner

2014-07-04T23:59:59.000Z

457

Solar collector  

SciTech Connect (OSTI)

A solar collector unit comprises a body of rigid thermally insulating material having a surface in the shape of about half a cylindrical parabola, the parabolic surface being provided with a reflective surface, a conduit being positioned with its long axis in the median plane of the parabola, said conduit serving as conduit for the heat-exchange medium, the surface of said conduit facing the parabolic surface being a selective surface, a transparent cover being provided on top of the device.

Dostrovsky, I.

1981-02-10T23:59:59.000Z

458

Solar Blog  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE: AlternativeEnvironment,Institutes and ResponseStaffServicesFuture |Assurance PlanCD-4),Solar96426

459

Normal matter storage of antiprotons  

SciTech Connect (OSTI)

Various simple issues connected with the possible storage of anti p in relative proximity to normal matter are discussed. Although equilibrium storage looks to be impossible, condensed matter systems are sufficiently rich and controllable that nonequilibrium storage is well worth pursuing. Experiments to elucidate the anti p interactions with normal matter are suggested. 32 refs.

Campbell, L.J.

1987-01-01T23:59:59.000Z

460

Efficiency limits of quantum well solar cells  

E-Print Network [OSTI]

The quantum well solar cell (QWSC) has been proposed as a flexible means to ensuring current matching for tandem cells. This paper explores the further advantage afforded by the indication that QWSCs operate in the radiative limit because radiative contribution to the dark current is seen to dominate in experimental data at biases corresponding to operation under concentration. The dark currents of QWSCs are analysed in terms of a light and dark current model. The model calculates the spectral response (QE) from field bearing regions and charge neutral layers and from the quantum wells by calculating the confined densities of states and absorption coefficient, and solving transport equations analytically. The total dark current is expressed as the sum of depletion layer and charge neutral radiative and non radiative currents consistent with parameter values extracted from QE fits to data. The depletion layer dark current is a sum of Shockley-Read-Hall non radiative, and radiative contributions. The charge neu...

Connolly, J P; Barnham, K W J; Bushnell, D B; Tibbits, T N D; Roberts, J S

2010-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "normal solar radiation" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


461

Solar heating system  

DOE Patents [OSTI]

An improved solar heating system in which the incident radiation of the sun is absorbed on collector panels, transferred to a storage unit and then distributed as heat for a building and the like. The improvement is obtained by utilizing a storage unit comprising separate compartments containing an array of materials having different melting points ranging from 75.degree. to 180.degree. F. The materials in the storage system are melted in accordance with the amount of heat absorbed from the sun and then transferred to the storage system. An efficient low volume storage system is provided by utilizing the latent heat of fusion of the materials as they change states in storing and releasing heat for distribution.

Schreyer, James M. (Oak Ridge, TN); Dorsey, George F. (Concord, TN)

1982-01-01T23:59:59.000Z

462

Improved solar heating systems  

DOE Patents [OSTI]

An improved solar heating system is described in which the incident radiation of the sun is absorbed on collector panels, transferred to a storage unit and then distributed as heat for a building and the like. The improvement is obtained by utilizing a storage unit comprising separate compartments containing an array of materials having different melting points ranging from 75 to 180/sup 0/F. The materials in the storage system are melted in accordance with the amount of heat absorbed from the sun and then transferred to the storage system. An efficient low volume storage system is provided by utilizing the latent heat of fusion of the materials as they change states in storing ad releasing heat for distribution.

Schreyer, J.M.; Dorsey, G.F.

1980-05-16T23:59:59.000Z

463

E-Print Network 3.0 - aerosol direct radiative Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Transfer Encyclopedia of Atmospheric Science William D. Collins... system. Naturally occurring aerosols reflect some of the incident solar radiation back to space before... the...

464

E-Print Network 3.0 - altered radiation sensitivity Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Depth and Surface Reflectance Mark Flanner and Charles S... @uci.edu) Abstract Although solar radiative absorption decays exponentially ... Source: Zender, Charles - Department...

465

SYNCHROTRON RADIATION SOURCES  

SciTech Connect (OSTI)

Synchrotron radiation is a very bright, broadband, polarized, pulsed source of light extending from the infrared to the x-ray region. It is an extremely important source of Vacuum Ultraviolet radiation. Brightness is defined as flux per unit area per unit solid angle and is normally a more important quantity than flux alone particularly in throughput limited applications which include those in which monochromators are used. It is well known from classical theory of electricity and magnetism that accelerating charges emit electromagnetic radiation. In the case of synchrotron radiation, relativistic electrons are accelerated in a circular orbit and emit electromagnetic radiation in a broad spectral range. The visible portion of this spectrum was first observed on April 24, 1947 at General Electric's Schenectady facility by Floyd Haber, a machinist working with the synchrotron team, although the first theoretical predictions were by Lienard in the latter part of the 1800's. An excellent early history with references was presented by Blewett and a history covering the development of the utilization of synchrotron radiation was presented by Hartman. Synchrotron radiation covers the entire electromagnetic spectrum from the infrared region through the visible, ultraviolet, and into the x-ray region up to energies of many 10's of kilovolts. If the charged particles are of low mass, such as electrons, and if they are traveling relativistically, the emitted radiation is very intense and highly collimated, with opening angles of the order of 1 milliradian. In electron storage rings there are three possible sources of synchrotron radiation; dipole (bending) magnets; wigglers, which act like a sequence of bending magnets with alternating polarities; and undulators, which are also multi-period alternating magnet systems but in which the beam deflections are small resulting in coherent interference of the emitted light.

HULBERT,S.L.; WILLIAMS,G.P.

1998-07-01T23:59:59.000Z

466

Solar Innovator | Alta Devices  

ScienceCinema (OSTI)

Selected to participate in the Energy Department's SunShot Initiative, Alta Devices produces solar cells that convert sunlight into electricity at world record-breaking levels of efficiency. Through its innovative solar technology Alta is helping bring down the cost of solar. Learn more about the Energy Department's efforts to advance solar technology at energy.gov/solar .

Mattos, Laila; Le, Minh

2013-05-29T23:59:59.000Z

467

Solar neutrinos and the solar composition problem  

E-Print Network [OSTI]

Standard solar models (SSM) are facing nowadays a new puzzle: the solar composition problem. New determinations of solar metal abundances lead SSM calculations to conflict with helioseismological measurements, showing discrepancies that extend from the convection zone to the solar core and can not be easily assigned to deficiencies in the modelling of the solar convection zone. We present updated solar neutrino fluxes and uncertainties for two SSM with high (old) and low (new) solar metallicity determinations. The uncertainties in iron and carbon abundances are the largest contribution to the uncertainties of the solar neutrino fluxes. The uncertainty on the ^14N+p -> ^15O+g rate is the largest of the non-composition uncertainties to the CNO neutrino fluxes. We propose an independent method to help identify which SSM is the correct one. Present neutrino data can not distinguish the solar neutrino predictions of both models but ongoing measurements can help to solve the puzzle.

Carlos Pena-Garay; Aldo Serenelli

2008-11-16T23:59:59.000Z

468

Internal absorber solar collector  

DOE Patents [OSTI]

Thin solar collecting panels are described made from arrays of small rod collectors consisting of a refracting dielectric rod lens with an absorber imbedded within it and a reflecting mirror coated on the back side of the dielectric rod. Non-tracking collector panels on vertical walls or roof tops receive approximately 90% of solar radiation within an acceptance zone 60.degree. in elevation angle by 120.degree. or more in the azimuth sectors with a collector concentration ratio of approximately 3.0. Miniaturized construction of the circular dielectric rods with internal absorbers reduces the weight per area of glass, plastic and metal used in the collector panels. No external parts or insulation are needed as heat losses are low due to partial vacuum or low conductivity gas surrounding heated portions of the collector. The miniature internal absorbers are generally made of solid copper with black selective surface and the collected solar heat is extracted at the collector ends by thermal conductivity along the absorber rods. Heat is removed from end fittings by use of liquid circulants. Several alternate constructions are provided for simplifying collector panel fabrication and for preventing the thermal expansion and contraction of the heated absorber or circulant tubes from damaging vacuum seals. In a modified version of the internal absorber collector, oil with temperature dependent viscosity is pumped through a segmented absorber which is now composed of closely spaced insulated metal tubes. In this way the circulant is automatically diverted through heated portions of the absorber giving higher collector concentration ratios than theoretically possible for an unsegmented absorber.

Sletten, Carlyle J. (106 Nagog Hill Rd., Acton, MA 01720); Herskovitz, Sheldon B. (88 Hammond St., Acton, MA 01720); Holt, F. S. (46 Emerson Rd., Winchester, MA 01890); Sletten, E. J. (Chestnut Hill Rd. R.F.D. Rte. #4, Amherst, NH 03031)

1981-01-01T23:59:59.000Z

469

SOLAR NANTENNA ELECTROMAGNETIC COLLECTORS  

SciTech Connect (OSTI)

This research explores a new efficient approach for producing electricity from the abundant energy of the sun. A nanoantenna electromagnetic collector (NEC) has been designed, prototyped, and tested. Proof of concept has been validated. The device targets mid-infrared wavelengths where conventional photovoltaic (PV) solar cells do not respond but is abundant in solar energy. The initial concept of designing NEC antennas was based on scaling of radio frequency antenna theory. This approach has proven unsuccessful by many due to not fully understanding and accounting for the optical behavior of materials in the THz region. Also until recent years the nanofabrication methods were not available to fabricate the optical antenna elements. We have addressed and overcome both technology barriers. Several factors were critical in successful implementation of NEC including: 1) frequency-dependent modeling of antenna elements, 2) selection of materials with proper THz properties and 3) novel manufacturing methods that enable economical large-scale manufacturing. The work represents an important step toward the ultimate realization of a low-cost device that will collect as well as convert this radiation into electricity, which will lead to a wide spectrum, high conversion efficiency, and low cost solution to complement conventional PVs.

Steven D. Novack; Dale K. Kotter; Dennis Slafer; Patrick Pinhero

2008-08-01T23:59:59.000Z

470

Solar Decathlon  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankCombustion |Energy Usage » SearchEnergyDepartmentScoping Study |4 Solar Background Document 4U.S.

471

Solar Power  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administrationcontroller systemsBiSite CulturalDepartment ofatRenewable Energy »Buildings Solar

472

SOLAR CELL BASED PYRANOMETERS: EVALUATION OF THE DIFFUSE RESPONSE Frank Vignola  

E-Print Network [OSTI]

260 SOLAR CELL BASED PYRANOMETERS: EVALUATION OF THE DIFFUSE RESPONSE Frank Vignola Department The responsivity to diffuse radiation of a solar cell based pyranometer is studied. Diffuse measurements are made of the LiCor pyranometer is presented. Implication of the spectral dependence of the solar cell based

Oregon, University of

473

Chapter 10. SOLAR ENERGY AND ITS BIOLOGICALPHYSICAL INTERACTIONS IN THE SEA  

E-Print Network [OSTI]

401 Chapter 10. SOLAR ENERGY AND ITS BIOLOGICAL­PHYSICAL INTERACTIONS IN THE SEA TOMMY D. DICKEY's history. The angu- lar distribution of radiant energy and the seasonal variations in solar radiation drive of solar energy, atmospheric gas composition, and planetary albedo. These processes are inex- tricably

Fabrikant, Sara Irina

474

Submitted for Publication to SOLAR ENERGY PRODUCING SATELLITE-DERIVED IRRADIANCES IN COMPLEX ARID TERRAIN  

E-Print Network [OSTI]

Submitted for Publication to SOLAR ENERGY PRODUCING SATELLITE-DERIVED IRRADIANCES IN COMPLEX ARID spectrum. #12;Submitted for Publication to SOLAR ENERGY In its simplest description the model amounts wavelengths in the visible spectral range (0.55-0.75 µm) corresponding to the peak of the solar radiation

Perez, Richard R.

475

INTEGRATION OF HELIOCLIM-1 DATABASE INTO PV-GIS TO ESTIMATE SOLAR ELECTRICITY POTENTIAL IN AFRICA  

E-Print Network [OSTI]

INTEGRATION OF HELIOCLIM-1 DATABASE INTO PV-GIS TO ESTIMATE SOLAR ELECTRICITY POTENTIAL IN AFRICA T, the proper configuration of a PV system depends on the knowledge of solar resource, which, although generally service. The PV-GIS approach makes it possible to enhance the spatial resolution of the solar radiation

Paris-Sud XI, Université de

476

A SOLAR STILL AUGMENTED WITH A FLAT-PLATE COLLECTOR AND A REFLECTOR  

E-Print Network [OSTI]

A SOLAR STILL AUGMENTED WITH A FLAT-PLATE COLLECTOR AND A REFLECTOR A. Saleh A. Badran Mechanical ­ Jordan Amman ­ Jordan e-mail: asaleh@philadelphia.edu.jo e-mail: badran@ju.edu.jo ABSTRACT A solar distillation system was built and tested to study the effect of increasing the solar radiation incident

477

Solar Wind and Interplanetary Magnetic Field: A Tutorial C. T. Russell  

E-Print Network [OSTI]

Solar Wind and Interplanetary Magnetic Field: A Tutorial C. T. Russell Institute of Geophysics at the center of the sun to its radiation into space by the photosphere, but most importantly for the solar wind controls the properties of the solar wind. In this tutorial review we examine the properties of the fields

Russell, Christopher T.

478

EEC 289-L Photovoltaics and Solar Cells 3 Units Winter Quarter (Alternate Years)  

E-Print Network [OSTI]

EEC 289-L Photovoltaics and Solar Cells 3 Units ­ Winter Quarter (Alternate Years) Prerequisite, and third-generation photovoltaics and solar cells, including design, fabrication technology, and grid physics of photovoltaics a. Device operation and performance metrics b. Properties of solar radiation c

479

A dynamical systems approach for the station keeping of a Solar Sail  

E-Print Network [OSTI]

A dynamical systems approach for the station keeping of a Solar Sail Ariadna Farr´es and `Angel considered the movement of a solar sail in the Sun - Earth system. As a model we have used the RTBP adding the solar radiation pressure. It can be seen that we have a 2D family of equilibria parametrised by the two

Barcelona, Universitat de

480

Solar Power Forecasting at UC San Diego Jan Kleissl, Dept of Mechanical & Aerospace Engineering, UCSD  

E-Print Network [OSTI]

show 2 cloud layers. Vaisala Fig. 4: Observed solar power output (black line) and simulation (Fig. 4). Tier 3: Power output forecast As cloud related solar radiation reductions are observed algorithm to determine actual expected solar power output at each PV array over the hour ahead. #12;

Fainman, Yeshaiahu

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481

Fuels from Water, CO2, and Solar Energy Prof. Aldo Steinfeld  

E-Print Network [OSTI]

Fuels from Water, CO2, and Solar Energy Prof. Aldo Steinfeld Department of Mechanical and Process fuels make use of concentrated solar radiation as the energy source of high-temperature process heat Engineering, ETH Zurich, Switzerland and Solar Technology Laboratory, Paul Scherrer Institute, Switzerland

Ponce, V. Miguel

482

Coat Color and Solar Heat Gain in Animals Author(s): Glenn E. Walsberg  

E-Print Network [OSTI]

when exposed to solar radiation than do light surfaces. For ani- mals such as birds or mammalsCoat Color and Solar Heat Gain in Animals Author(s): Glenn E. Walsberg Source: BioScience, Vol. 33://www.jstor.org #12;Coat Color and Solar Heat Gain in Animals Glenn E. Walsberg The relationbetween coat color

Cavitt, John F.

483

Geosynchronous orbit determination using space surveillance network observations and improved radiative force modeling  

E-Print Network [OSTI]

Correct modeling of the space environment, including radiative forces, is an important aspect of space situational awareness for geostationary (GEO) spacecraft. Solar radiation pressure has traditionally been modeled using ...

Lyon, Richard Harry, 1981-

2004-01-01T23:59:59.000Z

484

Nanocrystal Solar Cells  

E-Print Network [OSTI]

Nov, 2005). Chapter 4 Hybrid solar cells with 3-dimensional5 All-inorganic nanocrystal solar cells 5.1 Introduction Inoperation of organic based solar cells and distinguish them

Gur, Ilan

2006-01-01T23:59:59.000Z

485

Solar forecasting review  

E-Print Network [OSTI]

P(t) and the boring solar sensor. Denoting the bulk veloci ¯equipped with solar irradiance sensors, see Figure 10.3.f that utilizes the low solar cost sensor network deployment

Inman, Richard Headen

2012-01-01T23:59:59.000Z

486

Solar Energy Entrepreneurs  

E-Print Network [OSTI]

Solar Energy Entrepreneurs Meeting MD, DC, DE, VA Region May 31, 2012 #12;Solar Energy Entrepreneurs Meeting MD, DC, DE, VA Region Meeting Objectives should attend if you.... · ... work in the solar energy market

Rubloff, Gary W.

487

Solar Equipment Certification  

Broader source: Energy.gov [DOE]

Under the Solar Energy Standards Act of 1976, the Florida Solar Energy Center (FSEC) is responsible for certifying all solar equipment sold in Florida. A manufacturer who wishes to have their...

488

Solar Contractor Licensing  

Broader source: Energy.gov [DOE]

Nevada law requires that solar energy system installers be licensed by the Nevada State Contractors Board. Contractors may be licensed under License Classification C-37 (solar contracting for solar...

489

Solar Heating Contractor Licensing  

Broader source: Energy.gov [DOE]

Michigan offers a solar heating contractor specialty license to individuals who have at least three years of experience installing solar equipment under the direction of a licensed solar contractor...

490

JEA- Solar Incentive Program  

Broader source: Energy.gov [DOE]

The JEA Solar Incentive Program provides rebates to JEA's residential customers who install new and retrofit solar hot water heaters on their homes. The rebate is worth $800 for new solar thermal...

491

Solar Physics DOI: 10.1007/----  

E-Print Network [OSTI]

University of Cambridge SOLA: eve_Doppler.tex; 7 May 2011; 17:19; p. 1 #12;Hudson et al. Much of this energy: photosphere 1. Introduction The directly radiated energy of a solar flare represents a substantial fraction of the total energy released from the magnetic field (e.g., Emslie et al., 2005). 1SSL, UC Berkeley, CA, USA

Hudson, Hugh

492

Progress in passive solar energy systems. Volume 8. Part 1  

SciTech Connect (OSTI)

This book presents the papers given at a conference sponsored by the US DOE, the Solar Energy Research Institute, SolarVision, Inc., and the Southern California Solar Energy Society. The topics considered at the conference included sizing solar energy systems for agricultural applications, a farm scale ethanol production plant, the EEC wind energy RandD program, the passive solar performance assessment of an earth-sheltered house, the ARCO 1 MW photovoltaic power plant, the performance of a dendritic web photovoltaic module, second generation point focused concentrators, linear fresnel lens concentrating photovoltaic collectors, photovoltaic conversion efficiency, amorphous silicon thin film solar cells, a photovoltaic system for a shopping center, photovoltaic power generation for the utility industry, spectral solar radiation, and the analysis of insolation data.

Hayes, J.; Andrejko, D.A.

1983-01-01T23:59:59.000Z

493

Danger radiations  

ScienceCinema (OSTI)

Le conférencier Mons.Hofert parle des dangers et risques des radiations, le contrôle des zones et les précautions à prendre ( p.ex. film badge), comment mesurer les radiations etc.

None

2011-04-25T23:59:59.000Z

494

Solar collector  

DOE Patents [OSTI]

The field of this invention is solar collectors, and more particularly, the invention pertains to a flat plate collector that employs high performance thin films. The solar collector of this invention overcomes several problems in this field, such as excessive hardware, cost and reliability, and other prior art drawbacks outlined in the specification. In the preferred form, the apparatus features a substantially rigid planar frame (14). A thin film window (42) is bonded to one planar side of the frame. An absorber (24) of laminate construction is comprised of two thin film layers (24a, 24b) that are sealed perimetrically. The layers (24a, 24b) define a fluid-tight planar envelope (24c) of large surface area to volume through which a heat transfer fluid flows. Absorber (24) is bonded to the other planar side of the frame. The thin film construction of the absorber assures substantially full envelope wetting and thus good efficiency. The window and absorber films stress the frame adding to the overall strength of the collector.

Wilhelm, William G. (Cutchogue, NY)

1982-01-01T23:59:59.000Z

495

Solar skylight  

DOE Patents [OSTI]

A reflective shutter rotates within a skylight housing in such a fashion as to control solar energy thereby providing a combination of heating, lighting, and ventilation. The skylight housing has three faces: a glazed southern face, a glazed northern face, and an open downwardly oriented face to the interior of the structure. Counter-weighted pivot arms support the shutter at either end causing the center of rotation to pass through the center of gravity. The shutter has three basic positions: In the first position, during the winter day, the shutter closes off the northern face, allowing solar energy to enter directly into the supporting structure providing heat gain and daylighting. In the second position, during the winter night, the shutter closes off the open face to the interior, providing insulation between the structure and the skylight housing. In the third position, during the non-heating season, the shutter closes off the southern face blocking unwanted heat gain but allowing diffuse northern light to penetrate for daylighting. In this last position, a means is provided for ventilating by natural convection. The apparatus can be operated either manually or by motor.

Adamson, James C. (Osprey La., Rumson, NJ 07760)

1984-01-01T23:59:59.000Z

496

Radiation.cdr  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLas ConchasPassive Solar HomePromising Science for1 20115,Performance QualityRadiation August

497

Unglazed transpired solar collector having a low thermal-conductance absorber  

DOE Patents [OSTI]

An unglazed transpired solar collector using solar radiation to heat incoming air for distribution, comprises an unglazed absorber formed of low thermal-conductance material having a front surface for receiving the solar radiation and openings in the unglazed absorber for passage of the incoming air such that the incoming air is heated as it passes towards the front surface of the absorber and the heated air passes through the openings in the absorber for distribution. 3 figs.

Christensen, C.B.; Kutscher, C.F.; Gawlik, K.M.

1997-12-02T23:59:59.000Z

498

Unglazed transpired solar collector having a low thermal-conductance absorber  

DOE Patents [OSTI]

An unglazed transpired solar collector using solar radiation to heat incoming air for distribution, comprising an unglazed absorber formed of low thermal-conductance material having a front surface for receiving the solar radiation and openings in the unglazed absorber for passage of the incoming air such that the incoming air is heated as it passes towards the front surface of the absorber and the heated air passes through the openings in the absorber for distribution.

Christensen, Craig B. (Boulder, CO); Kutscher, Charles F. (Golden, CO); Gawlik, Keith M. (Boulder, CO)

1997-01-01T23:59:59.000Z

499

Utility Solar Generation Valuation Methods  

SciTech Connect (OSTI)

Tucson Electric Power (TEP) developed, tested and verified the results of a new and appropriate method for accurately evaluating the capacity credit of time variant solar generating sources and reviewed new methods to appropriately and fairly evaluate the value of solar generation to electric utilities. The project also reviewed general integrated approaches for adequately compensating owners of solar generation for their benefits to utilities. However, given the limited funding support and time duration of this project combined with the significant differences between utilities regarding rate structures, solar resource availability and coincidence of solar generation with peak load periods, it is well beyond the scope of this project to develop specific rate, rebate, and interconnection approaches to capture utility benefits for all possible utilities. The project developed computer software based evaluation method models to compare solar generation production data measured in very short term time increments called Sample Intervals over a typical utility Dispatch Cycle during an Evaluation Period against utility system load data. Ten second resolution generation production data from the SGSSS and actual one minute resolution TEP system load data for 2006 and 2007, along with data from the Pennington Street Garage 60 kW DC capacity solar unit installed in downtown Tucson will be applied to the model for testing and verification of the evaluation method. Data was provided by other utilities, but critical time periods of data were missing making results derived from that data inaccurate. The algorithms are based on previous analysis and review of specific 2005 and 2006 SGSSS production data. The model was built, tested and verified by in house TEP personnel. For this phase of the project, TEP communicated with, shared solar production data with and collaborated on the development of solar generation valuation tools with other utilities, including Arizona Public Service, Salt River Project, Xcel and Nevada Power Company as well as the Arizona electric cooperatives. In the second phase of the project, three years of 10 second power output data of the SGSSS was used to evaluate the effectiveness of frequency domain analysis, normal statistical distribution analysis and finally maximum/minimum differential output analysis to test the applicability of these mathematic methods in accurately modeling the output variations produced by clouds passing over the SGSSS array.

Hansen, Thomas N.; Dion, Phillip J.

2009-06-30T23:59:59.000Z

500

Solar Industry At Work: Streamlining Home Solar Installation...  

Broader source: Energy.gov (indexed) [DOE]

Solar Industry At Work: Streamlining Home Solar Installation Solar Industry At Work: Streamlining Home Solar Installation June 12, 2012 - 11:59am Addthis Sunrun is a home solar...