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1

Solar Radiation Research Data from the Solar Radiation Research Laboratory (SRRL) Baseline Monitoring Station (BMS)  

DOE Data Explorer (OSTI)

The SRRL BMS at Golden Colorado makes available both live and stored irradiance and meteorlogical data. Data sets range from 1981 to the present and are freely available through a variety of specialized interfaces. In addition to tools such as a data plotting program, the web site offers images from a live sky cam, images from the YES Sky imager, and from the EKO Sky Scanner. Spectral data, solar calendars, and wind rose data are also available. (Specialized Interface)

2

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

DOE Data Explorer (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.

3

Solar radiation resource assessment  

DOE Green Energy (OSTI)

The bulletin discusses the following: introduction; Why is solar radiation resource assessment important Understanding the basics; the solar radiation resource assessment project; and future activities.

Not Available

1990-11-01T23:59:59.000Z

4

Baseline study of US industry solar exports  

DOE Green Energy (OSTI)

This study is a detailed aggregate profile of US solar export activity in 1979 based on a survey of all segments of the solar industry. It identifies the dollar volume of exports by technology: (1) solar heating and cooling products; (2) wind products; (3) photovoltaics; (4) solar thermal electric; (5) OTEC and biomass; and (6) support products and services. The study offers to government and industry groups, for the first time, comprehensive information with which to formulate export goals and assistance measures based on the current realities of the solar export marketplace. Specific and aggregate recommendations which can lead to identification of realistic solar export opportunities and development of solar export markets are included.

Jacobius, T M; Levi, R S; Bereny, J A

1980-10-01T23:59:59.000Z

5

National Solar Radiation Data Base

The National Solar Radiation...  

Open Energy Info (EERE)

National Solar Radiation Data Base (NSRDB) is the most comprehensive collection of solar data freely available. The 1991 - 2005 NSRDB contains hourly solar radiation (including...

6

Solar radiation model validation  

Science Conference Proceedings (OSTI)

Several mathematical models have been developed within the past few years which estimate the solar radiation from other weather variables. Some of these models have been used to generate data bases which are extensively used in the design and analysis of solar system. Three of these solar radiation models have been used in developing the Augmented SOLMET Solar Data Tapes for the 26 SOLMET sites and the 222 ERSATZ Solar Data Tapes. One of the models, a theoretical one, predicts the solar noon radiation for clear sky conditions from the optical air mass, precipitable water vapor and turbidity variables. A second model, an empirical one, predicts the hourly total horizontal radiation from meteorological variables. And, a third model, also an empirical one, predicts the hourly direct normal radiation from the hourly total horizontal radiation. A study of the accuracy of these three solar radiation models is reported here. To assess the accuracy of these models, data were obtained from several US National Weather Service Stations and other sources, used the models to estimate the solar-radiation, and then compared the modeled radiation values with observed radiation values. The results of these comparisons and conclusions regarding the accuracy of the models are presented.

Hall, I.J.; Prairie, R.R.; Anderson, H.E.; Boes, E.C.

1980-10-01T23:59:59.000Z

7

NREL: Solar Radiation Research - Capabilities  

NLE Websites -- All DOE Office Websites (Extended Search)

Capabilities NREL's solar radiation research staff provides expertise in renewable energy measurement and instrumentation. Major capabilities include solar resource measurement,...

8

Solar radiation modelling  

Science Conference Proceedings (OSTI)

The Sun is the main energy source of the life on the Earth. Thus, solar radiation energy data and models are important for many areas of research and applications. Many parameters influence the amount of solar energy at a particular standing point of ... Keywords: Digital elevation model, Energy of quasiglobal radiation, Meteorology, Shadows, Virtual Sun motion

Klemen Zakšek; Toma Podobnikar; Krištof Oštir

2005-03-01T23:59:59.000Z

9

NREL: Solar Radiation Research - Facilities  

NLE Websites -- All DOE Office Websites (Extended Search)

Facilities Facilities Photo of two researchers standing on a platform near a solar tracker at the Solar Radiation Research Laboratory. The Solar Radiation Research Laboratory gathers solar radiation and meteorological data on South Table Mountain. NREL's Solar Radiation Research Laboratory (SRRL) has been collecting continuous measurements of basic solar radiation components since 1981. Since then, it has expanded its expertise to include integrated metrology, optics, electronics, and data acquisition capabilities. In addition, the SRRL provides facilities for outdoor performance testing of new research instrumentation and energy conversion devices such as photovoltaic modules. The SRRL is located on NREL's South Table Mountain site in Golden, Colorado, where it has excellent solar access because of its unrestricted

10

NREL: Solar Radiation Research Home Page  

NLE Websites -- All DOE Office Websites (Extended Search)

NREL's solar radiation research supports industry, government, and academia by providing solar radiation measurements, models, maps, and support services. These resources are used...

11

The Asymmetry of Global Solar Radiation Around Solar Noon  

Science Conference Proceedings (OSTI)

Using approximately 25 years of rehabilitated global solar radiation measurements, an analysis of the asymmetry of global solar radiation around solar noon was performed for three climatic regions of the United states represented by Miami, ...

R. T. Pinker; L. M. Militana

1988-03-01T23:59:59.000Z

12

NREL: Solar Radiation Research - Solar Radiation Research Laboratory  

NLE Websites -- All DOE Office Websites (Extended Search)

Solar Radiation Research Laboratory Photographs Solar Radiation Research Laboratory Photographs The Solar Radiation Research Laboratory (SRRL) houses more than 70 instruments to analyze and record solar radiation and surface meteorology data. Learn more about this equipment by exploring the photographs below. Click on a thumbnail to view the full image. Photo of researcher working on an instrument platform in front of the SRRL building. The SRRL is located on South Table Mountain in Golden, Colorado, at 39.74° N, 105.18° W, and 1,829 m AMSL. Photo of four researchers working on equipment atop the SRRL instrument deck. The SRRL's instrument deck is 96 ft long and 16 feet wide. Photo of two pyrheliometers mounted to an automatic sun-tracking base. These two SRRL pyrheliometers are mounted to automatically track the sun

13

solar radiation | OpenEI  

Open Energy Info (EERE)

radiation radiation Dataset Summary Description (Abstract): Monthly Average Solar Resource for flat-plate collectors tilted at latitude, for Mexico, Central America, and the Caribbean Islands. (Purpose): Provide information on the solar resource potential for the data domain. The insolation values represent the average solar energy available to a flat plate collector, such as a photovoltaic panel, oriented due south at an angle from horizontal equal to the latitude of the collector location. Source NREL Date Released January 31st, 2004 (10 years ago) Date Updated October 30th, 2007 (7 years ago) Keywords atmospheric water vapor Carribean Central America GEF. latitude tilt GIS Mexico NREL solar solar radiation SWERA TILT UNEP Data application/zip icon Download Shapefile (zip, 241.3 KiB)

14

Development of a GOES-R Advanced Baseline Imager Solar Channel Radiance Simulator for Ice Clouds  

Science Conference Proceedings (OSTI)

This paper describes the development of an ice cloud radiance simulator for the anticipated Geostationary Operational Environmental Satellite R (GOES-R) Advanced Baseline Imager (ABI) solar channels. The simulator is based on the discrete ...

Shouguo Ding; Ping Yang; Bryan A. Baum; Andrew Heidinger; Thomas Greenwald

2013-04-01T23:59:59.000Z

15

Solar radiation absorbing material  

DOE Patents (OSTI)

Solar energy absorbing means in solar collectors are provided by a solar selective carbon surface. A solar selective carbon surface is a microporous carbon surface having pores within the range of 0.2 to 2 micrometers. Such a surface is provided in a microporous carbon article by controlling the pore size. A thermally conductive substrate is provided with a solar selective surface by adhering an array of carbon particles in a suitable binder to the substrate, a majority of said particles having diameters within the range of about 0.2-10 microns.

Googin, John M. (Oak Ridge, TN); Schmitt, Charles R. (Oak Ridge, TN); Schreyer, James M. (Oak Ridge, TN); Whitehead, Harlan D. (Clinton, TN)

1977-01-01T23:59:59.000Z

16

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

NLE Websites -- All DOE Office Websites (Extended Search)

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

17

The Baseline Surface Radiation Network Pyrgeometer Round-Robin Calibration Experiment  

Science Conference Proceedings (OSTI)

With the aim of improving the consistency of terrestrial and atmospheric longwave radiation measurements within the Baseline Surface Radiation Network, five Eppley Precision Infrared Radiometer (PIR) pyrgeometers and one modified Meteorological ...

Rolf Philipona; Claus Fröhlich; Klaus Dehne; John DeLuisi; John Augustine; Ellsworth Dutton; Don Nelson; Bruce Forgan; Peter Novotny; John Hickey; Steven P. Love; Steven Bender; Bruce McArthur; Atsumu Ohmura; John H. Seymour; John S. Foot; Masataka Shiobara; Francisco P. J. Valero; Anthony W. Strawa

1998-06-01T23:59:59.000Z

18

Solar radiation management: the governance of research  

E-Print Network (OSTI)

Solar radiation management: the governance of research #12;convening organisations The cover image, which solar geoengineering interventions would seek to address if ever deemed safe and desirable to deploy. #12;Solar radiation management: the governance of research #12;The Solar Radiation Management

Rambaut, Andrew

19

NREL: Solar Radiation Research - Working with Us  

NLE Websites -- All DOE Office Websites (Extended Search)

solar technologies into the clean energy market. There are many ways to work with NREL's solar radiation research program. Developing Technology Partnerships NREL offers a variety...

20

Probing Radiative Solar Neutrinos Decays  

E-Print Network (OSTI)

Motivated by a pilot experiment conducted by F.Vannucci et al. during a solar eclipse, we work out the geometry governing the radiative decays of solar neutrinos. Surprisingly, although a smaller proportion of the photons can be detected, the case of strongly non-degenerate neutrinos brings better limits in terms of the fundamental couplings. We advocate satellite-based experiments to improve the sensitivity.

Frère, J M

1998-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "baseline 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

Definition: Solar radiation | Open Energy Information  

Open Energy Info (EERE)

radiation radiation Jump to: navigation, search Dictionary.png Solar radiation Electromagnetic energy emitted from the sun.[1][2][3] View on Wikipedia Wikipedia Definition View on Reegle Reegle Definition Solar radiant energy impinging on the earth in any given region or area. Also Known As Solar energy, Solar resource Related Terms Solar energy, Solar cell, Photovoltaics, PV array, PV module, Passive solar, Passive solar heating, energy, bioenergy References ↑ http://www.eere.energy.gov/basics/renewable_energy/solar_resources.html ↑ http://www1.eere.energy.gov/solar/solar_glossary.html#S ↑ http://rredc.nrel.gov/solar/glossary/gloss_s.html Retrieved f LikeLike UnlikeLike You like this.Sign Up to see what your friends like. rom "http://en.openei.org/w/index.php?title=Definition:Solar_radiation&oldid=502602"

22

Atmospheric attenuation of solar radiation  

DOE Green Energy (OSTI)

The attenuation of solar radiation by the atmosphere between the heliostat and receiver of a Central Receiver solar energy system has been computed for a number of atmospheric conditions and tower-heliostat distances. The most important atmospheric variable is found to be the atmospheric aerosol content. No dependence of atmospheric water vapor is found and only a weak dependence on solar zenith angle. For a 500 m heliostat-tower distance two to four percent reductions are expected under typical desert conditions (50 to 120 km visibility). The reduction is approximately linear with heliostat-tower distance. A representative value of the attenuation coefficient is 0.051 km/sup -1/.

Randall, C.M.

1977-05-18T23:59:59.000Z

23

Kingdom of Saudi Arabia Solar Radiation Atlas  

DOE Green Energy (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

24

Selected papers on solar radiation and solar thermal systems  

SciTech Connect

This volume contains a collection of reprints that represent the milestone papers in the fields of optical science and engineering. After a section containing historical papers in solar thermal research, the following sections are included: solar radiation; solar thermal power; solar thermal materials; and solar ponds. A total of 57 papers were indexed separately for the data base.

Osborn, D.E. (ed.) (Sacramento Municipal Utility District, CA (United States))

1993-01-01T23:59:59.000Z

25

1991-2005 National Solar Radiation Database  

DOE Green Energy (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

26

NREL: MIDC/SRRL Baseline Measurement System (39.74 N, 105.18...  

NLE Websites -- All DOE Office Websites (Extended Search)

The Measurement and Instrumentation Data Center collects Irradiance and Meterological data from the Solar Radiation Research Laboratory Baseline Measurement System....

27

Solar Radiation Research Laboratory (SRRL)  

NLE Websites -- All DOE Office Websites (Extended Search)

Renewable Energy Laboratory Renewable Energy Laboratory Solar Radiation Research Laboratory (SRRL) Instrument Calibrations Weather Observations Measurement Research Support Measurements & Instrumentation Team Center for Electric & Hydrogen Technologies & Systems http://www.nrel.gov/srrl NREL * * * * 1617 Cole Boulevard * * * * Golden, Colorado 80401-3393 * * * * (303) 275-3000 Operated for the U.S. Department of Energy by Midwest Research Institute * * * * Battelle * * * * Bechtel Mission Provide a unique outdoor research facility for supporting renewable energy conversion technologies and climate change studies for the U.S. Department of Energy (DoE). Objectives * Provide Improved Methods for Radiometer Calibrations * Develop a Solar Resource Climate Database for Golden, Colorado

28

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

29

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

E-Print Network (OSTI)

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

Grether, D.

2012-01-01T23:59:59.000Z

30

NREL's Concentrated Solar Radiation User Facility  

DOE Green Energy (OSTI)

Declared a national user facility in 1993, NREL's Concentrated Solar Radiation User Facility (CSR) allows industry, government, and university researchers to examine the effects and applications of as much as 50,000 suns of concentrated solar radiation using a High-Flux Solar Furnace and long-term exposure using an ultraviolet (UV) concentrator.

Lewandowski, A.

1999-09-01T23:59:59.000Z

31

NREL: Solar Radiation Research - Metrology Laboratory  

NLE Websites -- All DOE Office Websites (Extended Search)

Metrology Laboratory Photo of Solar Radiation Research Laboratory researchers inspecting radiometers mounted to calibration tables at the outside test site. Researchers at the...

32

NREL: Solar Radiation Research - Data and Resources  

NLE Websites -- All DOE Office Websites (Extended Search)

Data and Resources NREL solar radiation research information is available from the following sources. Measurement Measurement and Instrumentation Data Center (MIDC) Provides...

33

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

DOE Green Energy (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

34

Climate Forcing by Changing Solar Radiation  

Science Conference Proceedings (OSTI)

By how much does changing radiation from the sun influence the earth’s climate, presently and in the recent past, compared with other natural and anthropogenic processes? Current knowledge of the amplitudes and timescales of solar radiative ...

Judith Lean; David Rind

1998-12-01T23:59:59.000Z

35

National Solar Radiation Database | Open Energy Information  

Open Energy Info (EERE)

National Solar Radiation Database National Solar Radiation Database Jump to: navigation, search The National Solar Radiation Database, or NSRDB, describes the amount of solar energy which is available at any location in the United States. It is generated by the National Renewable Energy Laboratory, with the assistance of many collaborators.[1] Technical Overview Per its user's manual, "The NSRDB is a serially complete collection of hourly values of the three most common measurements of solar radiation (global horizontal, direct normal, and diffuse horizontal) over a period of time adequate to establish means and extremes, and at a sufficient number of locations to represent regional solar radiation climates."[2] There have been two releases of the NSRDB, each covering different time

36

A Rapid Radiative Transfer Model for Reflection of Solar Radiation  

Science Conference Proceedings (OSTI)

A rapid analytical radiative transfer model for reflection of solar radiation in plane-parallel atmospheres is developed based on the Sobolev approach and the delta function transformation technique. A distinct advantage of this model over ...

X. Xiang; E. A. Smith; C. G. Justus

1994-07-01T23:59:59.000Z

37

Spectral solar radiation data base documentation  

DOE Green Energy (OSTI)

The Solar Energy Research Institute (SERI), Electric Power Research Institute, Florida Solar Energy Center, and Pacific Gas and Electric Company cooperated to produce a spectral solar radiation data base representing a range of atmospheric conditions. These data will help to characterize the neutral variability in the spectral (color) content to outdoor solar radiation so that the sensitivity of spectrally selective solar devices (such as photovoltaics) to these variations can be studied quantitatively. Volume 1 of this report documents the history, approach, content, and format of the data base; Volume 2 contains graphs and field notes for each of the spectral data sets. The data reside on magnetic tape at SERI.

Riordan, C.J.; Myers, D.R.; Hulstrom, R.L.

1990-01-01T23:59:59.000Z

38

Solar radiation data manual for buildings  

DOE Green Energy (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

39

Solar Radiation Research Laboratory (Poster)  

DOE Green Energy (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

40

PAR solar radiation | OpenEI  

Open Energy Info (EERE)

PAR solar radiation PAR solar radiation Dataset Summary Description (Abstract): Mean values of PAR Solar Radiation in kWh/m2/day for 40km cells for 1 year (month, season, year) based on data from 1995 to 2005 (Purpose): To provide a set of consistent, reliable, verifiable, and accessible global data sets for international and in-country investors and other stakeholders Source INPE (National Institute for Spatial Research) and LABSOLAR (Laboratory of Solar Energy/Federal University of Santa Catarina) - Brazil Date Released August 05th, 2009 (5 years ago) Date Updated August 05th, 2009 (5 years ago) Keywords INPE LABSOLAR PAR solar radiation renewable energy South America SWERA UNEP Data application/zip icon Download Shapefile (zip, 977.7 KiB) text/csv icon Download Data (csv, 1.8 MiB)

Note: This page contains sample records for the topic "baseline 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

SERI Solar Radiation Resource Assessment Project  

DOE Green Energy (OSTI)

The purpose of the Solar Radiation Resource Project is to help meet the needs of the public, government, industry, and utilities for solar radiation data, models, and assessments as required to develop, design, deploy, and operate solar energy conversion systems. The project scientists produce information on the spatial (geographic), temporal (hourly, daily, and seasonal), and spectral (wavelength distribution) variability of solar radiation at different locations in the United States. Resources committed to the project in FY 1990 supported about four staff members, including part-time administrative support. With these resources, the staff must concentrate on solar radiation resource assessment in the United States; funds do not allow for significant efforts to respond to a common need for improved worldwide data. 34 refs., 21 figs., 6 tabs.

Riordan, C.; Maxwell, E.; Stoffel, T.; Rymes, M.; Wilcox, S.

1991-07-01T23:59:59.000Z

42

Improved Atmospheric Solar Radiation Budget Pyranometry  

Science Conference Proceedings (OSTI)

The solar radiation budget is investigated with seven pyranometers. Three of these instruments have horizontally aligned sensors. The sensors of the remaining four instruments are vertically aligned in such a way that their normals point to the ...

Gottfried Hänel; Karin Kastner

2000-07-01T23:59:59.000Z

43

Modeling Topographic Solar Radiation Using GOES Data  

Science Conference Proceedings (OSTI)

In this paper the authors present an algorithm that combines solar radiation fields derived from Geostationary Operational Environmental Satellite (GOES) observations with digital elevation data to produce topographically varying insolation ...

R. Dubayah; S. Loechel

1997-02-01T23:59:59.000Z

44

NREL North American Solar Radiation Atlas (Presentation)  

DOE Green Energy (OSTI)

This presentation is about NREL's North American Solar Radiation Atlas, which currently includes 48 states (Alaska and Hawaii to be added in the future). It discusses the goals of the Atlas which are to: deliver basic solar performance estimates to general users, deliver a wide variety of additional information to more advanced users, be easy to use, full featured, and extensible.

George, R; Gray-Hann, P.

2001-04-01T23:59:59.000Z

45

Diffuse solar radiation and associated meteorological  

E-Print Network (OSTI)

Abstract. Solar diffuse radiation data including global radiation, shortwave and longwave balances, net radiation and sunshine hours have been extensively analyzed to study the variation of diffuse radiation with turbidity and cloud discharges appearing in the form of atmospherics over the tropics. Results of surface radiation measurements at Calcutta, Poona, Delhi and Madras are presented together with some meteorological parameters. The monthly values of diffuse radiation and the monthly ratios of diffuse to global solar radiation have been examined, with a special emphasis in relation to the noise level of atmospherics at Calcutta in the very low frequency band. The results exhibit some definite seasonal changes which appear to be in close agreement with one another. 1

unknown authors

1995-01-01T23:59:59.000Z

46

Incident Solar Radiation over Europe Estimated from METEOSAT Data  

Science Conference Proceedings (OSTI)

Daily sums of the downward solar radiation, i.e., the global radiation, have been computed from imaging data of reflected solar and emitted infrared radiation which were measured from the geostationary satellites METEOSAT I and II during the ...

Werner Möser; Ehrhard Raschke

1984-01-01T23:59:59.000Z

47

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

2003-04-16T23:59:59.000Z

48

Spectral solar radiation data base documentation  

DOE Green Energy (OSTI)

The Solar Energy Research Institute (SERI), Electric Power Research Institute, Florida Solar Energy Center, and Pacific Gas and Electric Company cooperated to produce a spectral solar radiation data base representing a range of atmospheric conditions. These data will help to characterize the natural variability in the spectral (color) content of outdoor solar radiation so that the sensitivity of spectrally selective solar devices (such as photovoltaics) to these variations can be studied quantitatively. Volume I of this report documents the history, approach, content and format of the data base; Volume II contains graphs and field notes for each of the spectral data sets. The data reside on magnetic tape at SERI. 18 refs., 29 figs., 5 tabs.

Riordan, G.J.; Myers, D.R.; Hulstrom, R.L.

1990-01-01T23:59:59.000Z

49

Solar Position Algorithm for Solar Radiation Applications (Revised)  

DOE Green Energy (OSTI)

This report is a step-by-step procedure for implementing an algorithm to calculate the solar zenith and azimuth angles in the period from the year -2000 to 6000, with uncertainties of ?0.0003/. It is written in a step-by-step format to simplify otherwise complicated steps, with a focus on the sun instead of the planets and stars in general. The algorithm is written in such a way to accommodate solar radiation applications.

Reda, I.; Andreas, A.

2008-01-01T23:59:59.000Z

50

OpenEI - solar radiation  

Open Energy Info (EERE)

monthly and monthly and annual average latitude tilt GIS data at 40km resolution for Mexico, Central America, and the Caribbean Islands from NREL http://en.openei.org/datasets/node/500 (Abstract):  Monthly Average Solar Resource for flat-plate collectors tilted at latitude, for Mexico, Central America,
and the Caribbean Islands. (Purpose):  Provide information on the solar resource potential for the data domain. The insolation values represent the average solar energy available to a flat plate collector, such as a photovoltaic panel, oriented due south at an angle from horizontal equal to the latitude of the

51

Short communication: A software component for estimating solar radiation  

Science Conference Proceedings (OSTI)

GSRad (global solar radiation) is a software component containing models to estimate extra-terrestrial and ground-level solar radiation (global and photosynthetically active; direct, diffuse, and reflected components) from alternative methods. Radiation ... Keywords: Atmospheric transmissivity, Component architecture, GSRad, Model extensibility, Solar radiation fractions

M. Donatelli; L. Carlini; G. Bellocchi

2006-03-01T23:59:59.000Z

52

Fluctuation of solar radiation in Thailand  

SciTech Connect

Fluctuations in the daily solar radiation are examined in an unbroken 5-yr sequence of measurements at Bangkok, and are also estimated from daily sunshine measurements at Bangkok and 3 other stations in Thailand. Seasonal effects are shown by separate studies for eight 1/sup 1///sub 2/ month periods of the year defined by standard solar declination values. During the dry season in winter and spring the frequency distribution of daily totals of global solar radiation at Bangkok has a peak near 20 MJ m/sup -2/d/sup -1/ and is skewed towards low values. During the wet season in summer and autumn the distribution is more dispersed. Elsewhere the distributions are similar to those at Bangkok. The time series of daily totals of global solar radiation at Bangkok is analysed as a second order random process. The observed annual frequencies of runs of consecutive days with low radiation at Bangkok are given. There are 32.0 isolated days, 9.4 pairs of days, and 3.4 runs of 3 days per year with radiation less than 12.57 MJ m/sup -2/d/sup -1/. These results are adequately described by the second order theory. The runs are most likely to occur in summer and autumn. Elsewhere in Thailand the annual frequencies of the runs and their seasonal distributions are almost the same as at Bangkok, except that in the south the runs are more likely to occur later in the year.

Exell, R.H.B.

1976-01-01T23:59:59.000Z

53

Global Solar Radiation Estimation from Relative Sunshine Hours in Italy  

Science Conference Proceedings (OSTI)

We examine the existing measurements of global solar radiation and sunshine duration for Italy, and evaluate the errors made in estimating global solar radiation from sunshine hours measurements. We find that the Ångstrom–Black linear relation in ...

A. Andretta; B. Bartoli; B. Coluzzi; V. Cuomo; M. Francesca; C. Serio

1982-10-01T23:59:59.000Z

54

A Beta Regression Model for Improved Solar Radiation Predictions  

Science Conference Proceedings (OSTI)

Predicting global solar radiation is an integral part of much environmental modeling. There are several approaches for predicting global solar radiation at a site where no instrumentation exists. One popular approach uses the difference between ...

Randall Mullen; Lucy Marshall; Brian McGlynn

2013-08-01T23:59:59.000Z

55

A beta regression model for improved solar radiation predictions  

Science Conference Proceedings (OSTI)

Predicting global solar radiation is an integral part of much environmental modeling. There are several approaches for predicting global solar radiation at a site where no instrumentation exists. One popular approach uses the difference between ...

Randall Mullen; Lucy Marshall; Brian McGlynn

56

hourly solar radiation | OpenEI  

Open Energy Info (EERE)

solar radiation solar radiation Dataset Summary Description (Abstract): A need for predicting hourly global radiation exists for many locations particularly in Bangladesh for which measured values are not available and daily values have to be estimated from sunshine data. The CPRG model has been used to predict values of hourly Gh for Dhaka (23.770N, 90.380E), Chittagong (22.270N, 91.820E) and Bogra (24.850N, 89.370E) for = ±7.50, ±22.50, ±37.50, ±52.50, ±67.50, ±82.50 and ±97.50 i.e., for ±1/2, ±3/2, ±5/2, ±7/2, ±9/2, ±11/2, ±13/2 hours before and after solar noon and the computed values for Source Renewable Energy Research Centre Date Released October 22nd, 2003 (11 years ago) Date Updated Unknown Keywords Bangladesh documentation hourly solar radiation SWERA

57

Solar radiation observation stations updated to 1979  

DOE Green Energy (OSTI)

The type of sensing and recording equipment for 420 stations in the US are listed alphabetically by states. The stations are divided according to whether or not they are in the basic National Weather Service, NOAA, network. Reports of summarized solar radiation data are listed in an appendix. (MHR)

Carter, E.A.; Cristina, J.R.; Williams, B.B.

1979-04-01T23:59:59.000Z

58

Sustainable Energy Science and Engineering Center Solar Radiation  

E-Print Network (OSTI)

Sustainable Energy Science and Engineering Center Solar Radiation The objectives of this Lecture;Sustainable Energy Science and Engineering Center Atmospheric Effects on Incoming Solar Radiation of this energy is lost to space. The third process in the atmosphere that modifies incoming solar radiation

Krothapalli, Anjaneyulu

59

Turning collectors for solar radiation  

DOE Patents (OSTI)

A device is provided for turning a solar collector about the polar axis so that the collector is directed toward the sun as the sun tracks the sky each day. It includes two heat-expansive elements and a shadow plate. In the morning a first expansive element is heated, expands to turn the collector to face the sun, while the second expansive element is shaded by the plate. In the afternoon the second element is heated, expands to turn the collector to face the sun, while the first is shaded by the plate.

Barak, Amitzur Z. (Chicago, IL)

1976-01-01T23:59:59.000Z

60

Dynamic gating window for compensation of baseline shift in respiratory-gated radiation therapy  

Science Conference Proceedings (OSTI)

Purpose: To analyze and evaluate the necessity and use of dynamic gating techniques for compensation of baseline shift during respiratory-gated radiation therapy of lung tumors. Methods: Motion tracking data from 30 lung tumors over 592 treatment fractions were analyzed for baseline shift. The finite state model (FSM) was used to identify the end-of-exhale (EOE) breathing phase throughout each treatment fraction. Using duty cycle as an evaluation metric, several methods of end-of-exhale dynamic gating were compared: An a posteriori ideal gating window, a predictive trend-line-based gating window, and a predictive weighted point-based gating window. These methods were evaluated for each of several gating window types: Superior/inferior (SI) gating, anterior/posterior beam, lateral beam, and 3D gating. Results: In the absence of dynamic gating techniques, SI gating gave a 39.6% duty cycle. The ideal SI gating window yielded a 41.5% duty cycle. The weight-based method of dynamic SI gating yielded a duty cycle of 36.2%. The trend-line-based method yielded a duty cycle of 34.0%. Conclusions: Dynamic gating was not broadly beneficial due to a breakdown of the FSM's ability to identify the EOE phase. When the EOE phase was well defined, dynamic gating showed an improvement over static-window gating.

Pepin, Eric W.; Wu Huanmei; Shirato, Hiroki [School of Health Sciences, Purdue University, West Lafayette, Indiana 47907 (United States); Purdue School of Engineering Technology, IUPUI, Indianapolis, Indiana 46202 (United States); Hokkaido University School of Medicine, Sapporo, 060-8638 (Japan)

2011-04-15T23:59:59.000Z

Note: This page contains sample records for the topic "baseline 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

NREL: Solar Radiation Research - Research Staff  

NLE Websites -- All DOE Office Websites (Extended Search)

Research Staff Research Staff NREL's resource assessment and forecasting research staff provides expertise in renewable energy measurement and instrumentation through NREL's Power Systems Engineering Center. Photo of Mary Anderberg Mary Anderberg - Scientist M.S. Physics, University of Denver B.S. Physics, Auburn University Mary performs solar radiometric data quality analysis for the U.S. Department of Energy's Atmospheric Radiation Measurement program and provides programming support for the resource integration section. She also contributed to the National Solar Radiation Database update. In addition, Mary is the Web administrator of the Renewable Resource Data Center, for which she provides UNIX, C, Perl, and HTML support. Photo of Afshín Andreas Afshín Andreas - Senior Scientist

62

National Solar Radiation Data Base | OpenEI  

Open Energy Info (EERE)

Solar Radiation Data Base Solar Radiation Data Base Dataset Summary Description The National Solar Radiation Data Base (NSRDB) is the most comprehensive collection of solar data freely available. The 1991 - 2005 NSRDB contains hourly solar radiation (including global, direct, and diffuse) and meteorological data for 1,454 stations. NCDC's Integrated Surface Data (ISD) were the key data source for this effort, with much of the solar data modeled/estimated based on the surface observations. This dataset builds on the 1961-1990 NSRDB, which contains data for 239 stations. These data are extremely useful in estimating solar energy potential across the U.S., and in estimating heating/cooling requirements for buildings based on heat-gain from solar radiation. More information available at http://www.ncdc.noaa.gov/oa/reds/

63

Shining On: A primer on solar radiation data  

SciTech Connect

This document is a primer on solar radiation data. General uses of solar energy are presented. The manner in which solar radiation data is used to aid engineers in optimizing the use of solar thermal conversion and photovoltaic conversion is discussed. Methods for acquiring and assimilating the solar radiation data are illustrated. This would include the design and use of pyranometers and pyrheliometers. Seasonal and geographical variations in solar flux reaching the earth are evaluated. Other uses of compiled data include the determination of meteorological impacts of atmospheric disturbances such as volcano eruptions.

Dunlap, M.A.; Cook, G. [eds.; Marion, B.; Riordan, C.; Renne, D.

1992-05-01T23:59:59.000Z

64

Solar radiation data sources, applications, and network design  

DOE Green Energy (OSTI)

A prerequisite to considering solar energy projects is to determine the requirements for information about solar radiation to apply to possible projects. This report offers techniques to help the reader specify requirements in terms of solar radiation data and information currently available, describes the past and present programs to record and present information to be used for most requirements, presents courses of action to help the user meet his needs for information, lists sources of solar radiation data and presents the problems, costs, benefits and responsibilities of programs to acquire additional solar radiation data. Extensive background information is provided about solar radiation data and its use. Specialized information about recording, collecting, processing, storing and disseminating solar radiation data is given. Several Appendices are included which provide reference material for special situations.

None

1978-04-01T23:59:59.000Z

65

Sustainable Energy Science and Engineering Center Solar Radiation  

E-Print Network (OSTI)

Sustainable Energy Science and Engineering Center Solar Radiation The objectives of this section and Engineering Center Sun-Earth Relationships The solar constant, GSC is the energy from the sun, per unit time and Engineering Center Solar Radiation in the Atmosphere #12;Sustainable Energy Science and Engineering Center

Krothapalli, Anjaneyulu

66

Calibration of solar radiation measuring instruments. Final report  

DOE Green Energy (OSTI)

A review of solar radiation measurement of instruments and some types of errors is given; and procedures for calibrating solar radiation measuring instruments are detailed. An appendix contains a description of various agencies who perform calibration of solar instruments and a description of the methods they used at the time this report was prepared. (WHK)

Bahm, R J; Nakos, J C

1979-11-01T23:59:59.000Z

67

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

DOE Green Energy (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

68

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)

radiation atlas: a valuable digital tool. Solar Energy, 71, 81-83, 2001.1 The European Solar Radiation Atlas Author manuscript, published in "Solar Energy 71, 1 (2001) 81-83" DOI : 10.1016/S0038-092X(00)00157-2 #12 provided address the four most widely developed solar energy applications using simplified design methods

Paris-Sud XI, Université de

69

Measurements of sky luminance, sky illuminance, and horizontal solar radiation  

Science Conference Proceedings (OSTI)

This paper presents initial findings of a sky measurement program currently in progress at the National Bureau of Standards. Measurements are reported on sky luminance and illuminance and how they relate to horizontal solar radiation and sun position. Correlations are presented relating horizontal illuminance to horizontal solar radiation, and zenith luminance to solar altitude. These empirical models are particularly suitable for use in daylighting energy studies since they are based on existing solar data currently available on standard weather tapes.

Treado, S.; Gillette, G.

1983-04-01T23:59:59.000Z

70

High efficiency, radiation-hard solar cells  

DOE Green Energy (OSTI)

The direct gap of the In{sub 1-x}Ga{sub x}N alloy system extends continuously from InN (0.7 eV, in the near IR) to GaN (3.4 eV, in the mid-ultraviolet). This opens the intriguing possibility of using this single ternary alloy system in single or multi-junction (MJ) solar cells of the type used for space-based surveillance satellites. To evaluate the suitability of In{sub 1-x}Ga{sub x}N as a material for space applications, high quality thin films were grown with molecular beam epitaxy and extensive damage testing with electron, proton, and alpha particle radiation was performed. Using the room temperature photoluminescence intensity as a indirect measure of minority carrier lifetime, it is shown that In{sub 1-x}Ga{sub x}N retains its optoelectronic properties at radiation damage doses at least 2 orders of magnitude higher than the damage thresholds of the materials (GaAs and GaInP) currently used in high efficiency MJ cells. This indicates that the In{sub 1-x}Ga{sub x}N is well-suited for the future development of ultra radiation-hard optoelectronics. Critical issues affecting development of solar cells using this material system were addressed. The presence of an electron-rich surface layer in InN and In{sub 1-x}Ga{sub x}N (0 < x < 0.63) was investigated; it was shown that this is a less significant effect at large x. Evidence of p-type activity below the surface in Mg-doped InN was obtained; this is a significant step toward achieving photovoltaic action and, ultimately, a solar cell using this material.

Ager III, J.W.; Walukiewicz, W.

2004-10-22T23:59:59.000Z

71

NREL: MIDC/University of Texas Panamerican Solar Radiation Lab...  

NLE Websites -- All DOE Office Websites (Extended Search)

The Measurement and Instrumentation Data Center collects Irradiance and Meterological data from the University of Texas Panamerican (UTPA) Solar Radiation Lab (SRL)....

72

Estimation and Model Validation of Surface Solar Radiation and Cloud Radiative Forcing Using TOGA COARE Measurements  

Science Conference Proceedings (OSTI)

The Tropical Ocean and Global Atmosphere Coupled Ocean–Atmosphere Response Experiment (TOGA COARE) radiation measurements in the western Pacific warm pool are used to estimate surface solar radiation budgets and to validate radiation model ...

Ming-Dah Chou; Wenzhong Zhao

1997-04-01T23:59:59.000Z

73

Four-Stream Isosector Approximation for Solar Radiative Transfer  

Science Conference Proceedings (OSTI)

For radiative transfer in a thin atmosphere, an analytical four-stream isosector approximation for solar radiative transfer is presented. This approximation method is based on the assumption of four spherical sectors of isotropic intensities. ...

J. Li; J. S. Dobbie

1998-02-01T23:59:59.000Z

74

Solar Radiation Absorption due to Water Vapor: Advanced Broadband Parameterizations  

Science Conference Proceedings (OSTI)

Accurate parameterizations for calculating solar radiation absorption in the atmospheric column due to water vapor lines and continuum are proposed for use in broadband shortwave radiative transfer codes. The error in the absorption values is ...

Tatiana A. Tarasova; Boris A. Fomin

2000-11-01T23:59:59.000Z

75

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

76

A Study of Fitting the Generalized Lambda Distribution to Solar Radiation Data  

Science Conference Proceedings (OSTI)

The increased interest in the climatology of solar radiation dictates a need for a distribution to fit daily solar radiation totals which tend to have negatively-skewed probability distributions. Even daily mean solar radiation for weekly periods ...

A. Öztürk; R. F. Dale

1982-07-01T23:59:59.000Z

77

between Photolytic Aerosols and Solar Radiation  

E-Print Network (OSTI)

Since the early 70’s chemistry and transport models (ChTMs) have been proposed and improved. Tropospheric ChTMs for trace species are detailed numerical formulations intended to represent the atmospheric system as a whole, accounting for all the individual processes and phenomena that influence climate changes. The development of computer resources and the retrieval of emission inventories and observational data of the species of interest have enhanced the model evolution towards three-dimensional global models that account for more complicated chemical mechanisms, wet and dry deposition phenomena, and interactions and feedback mechanisms between meteorology and atmospheric chemistry. The purpose of this study is to ascertain the sensitivity of the solar radiative field in the atmosphere to absorption and scattering by aerosols. This effort is preliminary to the study of feedback mechanisms between photolytic processes that create and destroy aerosols and the radiation field itself. In this study, a cloud of water-soluble aerosols, randomly distributed in space within hypothetical 1-cm cubes of atmosphere, is generated. A random radius is assigned to each aerosol according to a lognormal size distribution function. The radiative field characterization is analyzed using a Mie scattering code to determine the scattering phase function and the absorption and scattering coefficients of sulfate aerosols, and a Monte Carlo ray-trace code is used to evaluate the radiative exchange. The ultimate goal of the effort is to create a tool to analyze the vertical distribution of absorption by aerosols in order to determine whether or not feedback between photolytic processes and the radiation field needs to be included in a Third Generation Chemistry and Transport model. ii

María Santa; María Iruzubieta; María Santa; María Iruzubieta

2001-01-01T23:59:59.000Z

78

Estimation of global solar radiation using ANN over Turkey  

Science Conference Proceedings (OSTI)

The main objective of the present study is to develop an artificial neural network (ANN) model based on multi-nonlinear regression (MNLR) method for estimating the monthly mean daily sum global solar radiation at any place of Turkey. For this purpose, ... Keywords: Artificial neural networks, Estimation, Global solar radiation, Stepwise multi-nonlinear regression, Turkey

Muammer Ozgoren; Mehmet Bilgili; Besir Sahin

2012-04-01T23:59:59.000Z

79

Improved historical solar radiation gridded data for Australia  

Science Conference Proceedings (OSTI)

An improved blended data method was developed for preparation and generation of solar radiation gridded datasets for SILO; Queensland Government database containing point and gridded daily climate data for Australia from 1890 till present designed for ... Keywords: Gridded datasets, Oktas, Radiometer, Satellite observations, Solar radiation, Sunshine duration

Juliusz Zajaczkowski, Kenneth Wong, John Carter

2013-11-01T23:59:59.000Z

80

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 experimental product from the United States National Weather Service (NWS) providing gridded forecasted

Perez, Richard R.

Note: This page contains sample records for the topic "baseline 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

Spectral Solar Radiation Data Base at NREL  

DOE Data Explorer (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/

82

High efficiency, radiation-hard solar cells  

E-Print Network (OSTI)

x Ga x N alloys: a full-solar-spectrum photovoltaic materialto the useful part of the solar spectrum. In fact, current

Ager III, J.W.; Walukiewicz, W.

2004-01-01T23:59:59.000Z

83

NREL Solar Radiation Resource Assessment Project: Status and outlook  

DOE Green Energy (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

84

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

DOE Data Explorer (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)

85

Broken-Cloud Enhancement of Solar Radiation Absorption  

Science Conference Proceedings (OSTI)

Observations cited by Ramanathan et al. and Cess et al. indicate systematic errors in the solar radiation parameterizations of the current atmospheric general circulation models. Cloudy scenes have an observational excess (or calculational ...

R. N. Byrne; R. C. J. Somerville; B. Suba?ilar

1996-03-01T23:59:59.000Z

86

Solar Radiation Mapping from NOAA AVHRR Data in Catalonia, Spain  

Science Conference Proceedings (OSTI)

A statistical model is presented for the determination of hourly global solar radiation from the National Oceanic and Atmospheric Administration advanced very high resolution radiometer (NOAA AVHRR) satellite data, which provide wide coverage ...

Henry Flores Tovar; Jose M. Baldasano

2001-11-01T23:59:59.000Z

87

Correction of Marine Air Temperature Observations for Solar Radiation Effects  

Science Conference Proceedings (OSTI)

The effect of incoming solar radiation on merchant ships' observations of air temperature was assessed as part of the Voluntary Observing Ships' Special Observing Project for the North Atlantic (VSOP-NA), The ships' reports were compared with ...

Elizabeth C. Kent; Raoul J. Tiddy; Peter K. Taylor

1993-12-01T23:59:59.000Z

88

Spectral Distribution of Solar Radiation in the Nordic Countries  

Science Conference Proceedings (OSTI)

In 1977 a cooperative research project between the Nordic countries (Denmark, Finland, Iceland, Norwayand Sweden) was started. The objective was to chart the spectral distribution of solar radiation in the Nordicarea with a view to furnish ...

G. Kvifte; K. Hegg; V. Hansen

1983-01-01T23:59:59.000Z

89

Posters Mean Fluxes of Visible Solar Radiation in Broken Clouds  

NLE Websites -- All DOE Office Websites (Extended Search)

7 Posters Mean Fluxes of Visible Solar Radiation in Broken Clouds V. E. Zuev, G. A. Titov, T. B. Zhuravleva, and S. Y. Popov Institute of Atmospheric Optics, Siberian Branch...

90

Solar Radiative Transfer for Wind-Sheared Cumulus Cloud Fields  

Science Conference Proceedings (OSTI)

The Monte Carlo method of photon transport was used to simulate solar radiative transfer for cumulus-like cloud forms (and cloud fields) possessing structural characteristics similar to those induced by wind shear. Using regular infinite arrays ...

Howard W. Barker

1994-05-01T23:59:59.000Z

91

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

DOE Green Energy (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

92

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

SciTech Connect

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

93

Absorption of Solar Radiation by Atmospheric O4  

Science Conference Proceedings (OSTI)

Spectroscopic measurements of the atmospheric solar radiation attenuation reveal that the near ultraviolet–visible–near-infrared absorption of the oxygen collision complex (O2)2, thus far omitted from models, is important for the direct heating ...

Klaus Pfeilsticker; Frank Erle; Ulrich Platt

1997-04-01T23:59:59.000Z

94

A Solar Radiation Model for Use in Climate Studies  

Science Conference Proceedings (OSTI)

A solar radiation routine has been developed for use in climate studies. It includes the absorption and scattering due to ozone, water vapor, oxygen, carbon dioxide, clouds, and aerosols. Rayleigh scattering is also included. The UV and visible ...

Ming-Dah Chou

1992-05-01T23:59:59.000Z

95

A Surface Solar Radiation Model for Cloudy Atmospheres  

Science Conference Proceedings (OSTI)

A numerical solar radiation model based on standard meteorological data was revised for clouds using data from the GARP Atlantic Tropical Experiment (GATE). Climatic-mean transmittance functions were revised for low and convective clouds ...

Marshall A. Atwater; John T. Ball

1981-04-01T23:59:59.000Z

96

Modeling Surface Solar Radiation: Model Formulation and Validation  

Science Conference Proceedings (OSTI)

A model for computing global solar radiation at the surface was formulated for use with satellite observations. A compromise in the approach was necessary, whereby the model accuracy and the inherent limitations of satellite observations were ...

R. T. Pinker; J. A. Ewing

1985-05-01T23:59:59.000Z

97

SOLAR RADIATION DURABILITY OF MATERIALS, COMPONENTS AND SYSTEMS FOR PHOTOVOLTAICS  

E-Print Network (OSTI)

. Discussions at the NREL PV reliability workshop in 2011 came to the conclusion that while initial performance as a function of total absorbed solar radiation dose. In a reliability engineering framework, these quantitative and published data, comparisons have been made showing the reduction of solar irradiance incident on the PV

Rollins, Andrew M.

98

20 Years of Solar Measurements: The Solar Radiation Research...  

NLE Websites -- All DOE Office Websites (Extended Search)

decreases in direct (beam) irradiance. Daily variations in the amounts of solar energy components vary with the types, amounts, and distribution of the clouds, amounts of...

99

Surface Solar Radiation Flux and Cloud Radiative Forcing for the Atmospheric Radiation Measurement (ARM) Southern Great Plains (SGP): A Satellite, Surface Observations, and Radiative Transfer Model Study  

Science Conference Proceedings (OSTI)

This study presents surface solar radiation flux and cloud radiative forcing results obtained by using a combination of satellite and surface observations interpreted by means of a simple plane-parallel radiative transfer model called 2001. This ...

Catherine Gautier; Martin Landsfeld

1997-05-01T23:59:59.000Z

100

Modeling Tropical Pacific Sea Surface Temperature with Satellite-Derived Solar Radiative Forcing  

Science Conference Proceedings (OSTI)

Two independent datasets for the solar radiation at the surface derived from satellites are compared. The data derived from the Earth Radiation Budget Experiment (ERBE) is for the net solar radiation at the surface whereas the International ...

Richard Seager; M. Benno Blumenthal

1994-12-01T23:59:59.000Z

Note: This page contains sample records for the topic "baseline 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

Progress Toward an Updated National Solar Radiation Data Base  

SciTech Connect

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

102

Progress Toward an Updated National Solar Radiation Data Base  

DOE Green Energy (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

103

Quality control of solar radiation data within the RMIB solar measurements network  

Science Conference Proceedings (OSTI)

Assessment of the solar resource is based upon measured data, where available. However, with any measurement there exist errors. Consequently, solar radiation data do not exhibit necessarily the same reliability and it often happens that users face time series of measurements containing questionable values though preliminary technical control has been done before the data release. To overcome such a situation, a major effort has been undertaken at the Royal Meteorological Institute of Belgium (RMIB) to develop procedures and software for performing post-measurement quality control of solar data from the radiometric stations of our in situ solar monitoring network. Moreover, because solar energy applications usually need continuous time series of solar radiation data, additional procedures have also been established to fill missing values (data initially lacking or removed via quality checks). (author)

Journee, Michel; Bertrand, Cedric [Royal Meteorological Institute of Belgium, Avenue Circulaire 3, B-1180 Brussels (Belgium)

2011-01-15T23:59:59.000Z

104

Approximations for radiative cooling and heating in the solar chromosphere  

E-Print Network (OSTI)

Context. The radiative energy balance in the solar chromosphere is dominated by strong spectral lines that are formed out of LTE. It is computationally prohibitive to solve the full equations of radiative transfer and statistical equilibrium in 3D time dependent MHD simulations. Aims. To find simple recipes to compute the radiative energy balance in the dominant lines under solar chromospheric conditions. Methods. We use detailed calculations in time-dependent and 2D MHD snapshots to derive empirical formulae for the radiative cooling and heating. Results. The radiative cooling in neutral hydrogen lines and the Lyman continuum, the H and K and intrared triplet lines of singly ionized calcium and the h and k lines of singly ionized magnesium can be written as a product of an optically thin emission (dependent on temperature), an escape probability (dependent on column mass) and an ionization fraction (dependent on temperature). In the cool pockets of the chromosphere the same transitions contribute to the heat...

Carlsson, Mats

2012-01-01T23:59:59.000Z

105

Quality control and estimation of global solar radiation in China  

Science Conference Proceedings (OSTI)

Measurements of surface radiation in China are too sparse to meet demand for scientific research and engineering applications. Moreover, the radiation data often include erroneous and questionable values though preliminary quality-check has been done before the data release. Therefore, quality control of radiation data is often a prerequisite for using these data. In this study, a set of quality-check procedures were implemented to control the quality of the solar radiation measurements at 97 stations in China. A hybrid model for estimating global solar radiation was then evaluated against the controlled data. The results show that the model can estimate the global radiation with accuracy of MBE less than 1.5 MJ m{sup -2} and RMSE less than 2.8 MJ m{sup -2} for daily radiation and RMSE less than 2.0 MJ m{sup -2} for monthly-mean daily radiation at individual stations over most of China except at a few stations where unsatisfactory estimates were possibly caused by severe air pollution or too dense clouds. The MBE averaged over all stations are about 0.7 MJ m{sup -2} and RMSE about 2.0 MJ m{sup -2} for daily radiation and RMSE about 1.3 MJ m{sup -2} for monthly-mean daily radiation. Finally, this model was used to fill data gaps and to expand solar radiation data set using routine meteorological station data in China. This data set would substantially contribute to some radiation-related scientific studies and engineering applications in China. (author)

Tang, Wenjun; He, Jie [Key Laboratory of Tibetan Environment Changes and Land Surface Processes, Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing 100085 (China); Graduate School of Chinese Academy of Sciences, Beijing 100049 (China); Yang, Kun; Qin, Jun [Key Laboratory of Tibetan Environment Changes and Land Surface Processes, Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing 100085 (China)

2010-03-15T23:59:59.000Z

106

Influences of atmospheric conditions and air mass on the ratio of ultraviolet to total solar radiation  

SciTech Connect

The technology to detoxify hazardous wastes using ultraviolet (UV) solar radiation is being investigated by the DOE/SERI Solar Thermal Technology Program. One of the elements of the technology evaluation is the assessment and characterization of UV solar radiation resources available for detoxification processes. This report describes the major atmospheric variables that determine the amount of UV solar radiation at the earth's surface, and how the ratio of UV-to-total solar radiation varies with atmospheric conditions. These ratios are calculated from broadband and spectral solar radiation measurements acquired at SERI, and obtained from the literature on modeled and measured UV solar radiation. The following sections discuss the atmospheric effects on UV solar radiation and provide UV-to-total solar radiation ratios from published studies, as well as measured values from SERI's data. A summary and conclusions are also given.

Riordan, C.J.; Hulstrom, R.L.; Myers, D.R.

1990-08-01T23:59:59.000Z

107

Modeling and Analysis of Solar Radiation Potentials on Building Rooftops  

Science Conference Proceedings (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

108

Analysis of a direct radiation solar dehumidification system  

DOE Green Energy (OSTI)

SERI researchers investigated a desiccant dehumidifier that is regenerated by direct absorption of solar radiation using a simplified numerical model (DESSIM) of the adsorption and desorption processes. This paper presents estimates of the performance of a solar-fired air conditioning system (ventilation cycle) containing the dehumidifier/collector. The researchers also considered the effects of dehumidifier NTUs, heat exchanger performance, and insolation levels. The direct radiation system can operate effectively at low insolation levels and thus may have some advantages in some geographic areas.

Schultz, K.; Barlow, R.; Pesaran, A.; Kreith, F.

1985-06-01T23:59:59.000Z

109

SOLERAS - Solar Energy Water Desalination Project: Exxon Research and Engineering. System design final report, Volume 2. Appendices baseline plant design details seawater feed (System A)  

Science Conference Proceedings (OSTI)

The details of the design of a conceptual baseline solar desalination plant are provided. Yanbu, Saudi Arabia is the site for the plant. Details are defined for several of the plant subsystems including: energy storage, energy delivery, reverse osmosis/multiple effect distillation, water storage, waste disposal, backup power generation, controls and instrumentation, data acquisition, and facilities and enclosures subsystems. The plant equipment is listed and process flow diagrams are included. Cost estimates and economic analyses of the plant are documented. (BCS)

Not Available

1985-01-01T23:59:59.000Z

110

Measurement and analysis of near ultraviolet solar radiation  

DOE Green Energy (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

111

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

Science Conference Proceedings (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

112

Trends in Daily Solar Radiation and Precipitation Coefficients of Variation since 1984  

Science Conference Proceedings (OSTI)

This study investigates the possibility of changes in daily scale solar radiation and precipitation variability. Coefficients of variation (CVs) were computed for the daily downward surface solar radiation product from the International Satellite ...

David Medvigy; Claudie Beaulieu

2012-02-01T23:59:59.000Z

113

Influence of a Tropical Island Mountain on Solar Radiation, Air Temperature and Vapor Pressure  

Science Conference Proceedings (OSTI)

Measured solar radiation, air temperature, and water vapor pressure at 17 stations on the northwest flank of Haleakala, Maui, Hawaii are compared with modeled clear day solar radiation and free atmosphere air temperature and water vapor pressure. ...

Dennis Nullet

1989-03-01T23:59:59.000Z

114

The Estimation of Hourly Global Solar Radiation Using a Cloud Cover Model Developed at Blytheville, Arkansas  

Science Conference Proceedings (OSTI)

The lack of a comprehensive solar radiation monitoring network throughout the United States has led to extensive modeling. Some of the models use a measured component, usually the global solar radiation, to predict the other components, direct ...

W. D. Turner; Abdulaziz Mujahid

1984-05-01T23:59:59.000Z

115

Decline in Global Solar Radiation with Increased Horizontal Visibility in Germany between 1964 and 1990  

Science Conference Proceedings (OSTI)

A statistically significant decrease in mean annual global solar radiation between 1964 and 1990 under completely overcast skies was found at five out of eight studied locations in Germany. A decrease of global solar radiation is also evident in ...

Beate G. Liepert; George J. Kukla

1997-09-01T23:59:59.000Z

116

A novel 2-D model approach for the prediction of hourly solar radiation  

Science Conference Proceedings (OSTI)

In this work, a two-dimensional (2-D) representation of the hourly solar radiation data is proposed. The model enables accurate forecasting using image prediction methods. One year solar radiation data that is acquired and collected between August 1, ...

F. Onur Hocaoglu; Ö Nezih Gerek; Mehmet Kurban

2007-06-01T23:59:59.000Z

117

NREL Solar Radiation Resource Assessment Project: Status and outlook  

DOE Green Energy (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

118

Progress on an Updated National Solar Radiation Data Base: Preprint  

DOE Green Energy (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

119

Solar radiation powered battery reclaimer and charger  

SciTech Connect

A solar powered battery reclaiming and charging circuit is provided having a high frequency section (a bistable multi-vibrator, relaxation blocking bistable multi-vibrator or an oscillator inverter circuit) which is solar powered and output coupled by a close coupled RF transformer to the battery connected output section. The transformer has a secondary winding producing a current-voltage full wave output sharply defined through a two diode rectifying circuit to a multi-frequency 10 KHz to 100 KHz pulse output. The sharp pulse outputs with RF content in the 2--10 megahertz frequency range have specific frequencies equal to natural resonant frequencies of the specific electrolytes used in respective batteries. These resulting high frequency RF output signals in each pulse envelope structure are capable of reclaiming, maintaining and charging batteries that possess a liquid electrolyte or jell electrolyte and are beneficial to dry cell batteries as well in extending battery life. 9 figs.

Gali, C.E.

1994-01-04T23:59:59.000Z

120

Artificial Intelligence technique for modelling and forecasting of solar radiation data: a review  

Science Conference Proceedings (OSTI)

Artificial Intelligence (AI) has been used and applied in different sectors, such as engineering, economic, medicine, military, marine, etc. AI has also been applied for modelling, identification, optimisation, prediction, forecasting, and control ... Keywords: AI, FPGA, GAs, VHDL, artificial intelligence, fuzzy logic, genetic algorithms, hybrid systems, neural networks, photovoltaic systems, solar radiation forecasting, solar radiation modelling, solar radiation prediction

Adel Mellit

2008-11-01T23:59:59.000Z

Note: This page contains sample records for the topic "baseline 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

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

122

NREL: Solar Radiation Research - Optical Metrology Laboratory  

NLE Websites -- All DOE Office Websites (Extended Search)

Optical Metrology Laboratory Optical Metrology Laboratory Photo of a laser and a spectral irradiance calibration system used to create lamp-detector alignment. Researchers use a spectral irradiance calibration alignment jig and a laser beam to align a calibration source and test unit. The NREL Optical Metrology Laboratory ensures that optical radiation resource measurement equipment is calibrated to national or international standards to ensure the quality and traceability of data. NREL considers optical radiation to range from 250 nm to 2,500 nm and to include the ultraviolet (250-400 nm), visible (400-750 nm), near infrared (750-1,100 nm), and shortwave infrared (1,100-2,500 nm) ranges. Activities The Optical Metrology Laboratory provides National Institute of Standards and Technology-traceable measurements for:

123

Effects of stratospheric perturbations on the solar radiation budget  

DOE Green Energy (OSTI)

The changes in solar absorption and in local heating rates due to perturbations to O/sub 3/ and NO/sub 2/ concentrations caused by stratospheric injection of NO/sub x/ and CFM pollutants are assessed. The changes in species concentration profiles are derived from theoretical calculations using a transport-kinetics model. Because of significant changes in our understanding of stratospheric chemistry during the past year, the assessment of the effect of stratospheric perturbations on the solar radiation budget differs from previous assessments. Previously, a reduction in O/sub 3/ due to an NO/sub x/ injection caused a net decrease in the gaseous solar absorption;now the same perturbation leads to a net increase. The implication of these changes on the surface temperature is also discussed.

Luther, F.M.

1978-04-01T23:59:59.000Z

124

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

Open Energy Info (EERE)

is a national laboratory of the U.S. Department of Energy, Office of Energy is a national laboratory of the U.S. Department of Energy, Office of Energy Efficiency & Renewable Energy, operated by the Alliance for Sustainable Energy, LLC. Contract No. DE-AC36-08GO28308 National Solar Radiation Database 1991-2010 Update: User's Manual Stephen Wilcox Technical Report NREL/TP-5500-54824 August 2012 NREL is a national laboratory of the U.S. Department of Energy, Office of Energy Efficiency & Renewable Energy, operated by the Alliance for Sustainable Energy, LLC. National Renewable Energy Laboratory 15013 Denver West Parkway Golden, Colorado 80401 303-275-3000 * www.nrel.gov Contract No. DE-AC36-08GO28308 National Solar Radiation Database 1991-2010 Update: User's Manual

125

Solar radiation data modeling with a novel surface fitting approach  

E-Print Network (OSTI)

Abstract. In this work one year hourly solar radiation data are analyzed and modeled. Using a 2-D surface fitting approach, a novel model is developed for the general behavior of the solar radiation. The mathematical formulation of the 2-D surface model is obtained. The accuracy of the analytical surface model is tested and compared with another surface model obtained from a feed-forward Neural Network(NN). Analytical surface model and NN surface model are compared in the sense of Root Mean Square Error (RMSE). It is obtained that the NN surface model gives more accurate results with smaller RMSE results. However, unlike the specifity of the NN surface model, the analytical surface model provides an intuitive and more generalized form that can be suitable for several other locations on earth. 1

F. Onur Hocao˜glu; Ömer Nezih Gerek; Mehmet Kurban

2007-01-01T23:59:59.000Z

126

Prediction of Solar Radiation on Building Rooftops: A Data-Mining Approach  

Science Conference Proceedings (OSTI)

Solar energy technologies offer a clean, renewable, and domestic energy source, and are essential components of a sustainable energy future. The accurate measurement of solar radiation data is essential for optimum site selection of future distributed solar power plants as well as sizing photovoltaic systems. However, solar radiation data are not readily available because measured sequences of radiation values are obtained for a few locations in a country. When the data are available, they are usually at different time periods and spatial scale. The availability of solar radiation data at hourly or daily time scale will enhance the integration of solar energy into electricity generation and promote a sustainable energy future. The ability to generate approximate solar radiation values is often the only practical way to obtain radiation data at hourly or daily time scale. As a result, several models have been developed for estimating solar radiation values based on analytical, numerical simulation, and statistical approaches. However, these models have inherent challenges. We will discuss some of those challenges in this paper. To enhance the prediction of solar radiation values, a novel approach is presented for estimating solar radiation values using support vector machine technique. The approach accounts for unique characteristics that influence solar radiation values. The preliminary results obtained offer useful insights for model enhancements.

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

2012-01-01T23:59:59.000Z

127

An Examination of the Clear-Sky Solar Absorption over the Central Equatorial Pacific: Observations versus Models  

Science Conference Proceedings (OSTI)

Measurements of downward surface solar radiation (global radiation) and albedo taken during the Central Equatorial Pacific Experiment (CEPEX) are used to obtain baseline estimates for two quantities concerning the radiation budget of the tropical ...

William C. Conant; V. Ramanathan; Francisco P. J. Valero; Jens Meywerk

1997-08-01T23:59:59.000Z

128

Spectral Distribution of Solar Radiation on Clear Days: A Comparison Between Measurements and Model Estimates  

Science Conference Proceedings (OSTI)

The spectral distribution of the direct solar and scattered sky radiation are computed and presented as functions of solar height and as integrated daily values for selected days of the year. The monochromatic fluxes are integrated over the ...

V. Hansen

1984-05-01T23:59:59.000Z

129

A Technique for Mapping the Distribution of Diffuse Solar Radiation over the Sky Hemisphere  

Science Conference Proceedings (OSTI)

A technique to map the distribution of diffuse solar radiation over the sky hemisphere is described. The method is based on an analysis of all-sky, visible photographs and concurrent actinometric measurements of diffuse solar radiance. The ...

L. J. Bruce McArthur; John E. Hay

1981-04-01T23:59:59.000Z

130

Overlap of Solar and Infrared Spectra and the Shortwave Radiative Effect of Methane  

Science Conference Proceedings (OSTI)

This paper focuses on two shortcomings of radiative transfer codes commonly used in climate models. The first aspect concerns the partitioning of solar versus infrared spectral energy. In most climate models, the solar spectrum comprises ...

J. Li; C. L. Curry; Z. Sun; F. Zhang

2010-07-01T23:59:59.000Z

131

Cloud shading direct solar radiation model for the Crosbyton Solar Power Project  

DOE Green Energy (OSTI)

The CSPP was initiated to study the feasibility of using hemispheric bowl solar collectors for power generation. A non-spectral direct solar radiation (DSR) model was developed to aid in determining whether there exists a preferred spacing of these solar collectors based solely on meteorological considerations. The DSR model is applicable to the Northern Hemisphere and, with a few adjustments, to the Southern Hemisphere. The DSR model considers the reduction of direct insolation through the atmosphere due to Rayleigh scattering, uniformly mixed gases, ozone, precipitable water, and aerosols. It incorporates geographical information along with temperature, dew point, barometric pressure, and visibility data, updated every 15 minutes. This clear sky DSR model was verified against actual direct insolation data.

Peterson, R.E.; Smalley, D.J.

1985-06-01T23:59:59.000Z

132

Chapter 1.12: Solar Radiation Resource Assessment for Renewable Energy Conversion  

SciTech Connect

This chapter addresses measurements, modeling, and databases of solar energy potential that may serve as fuel for solar energy conversion systems. Developing innovative designs for capturing and converting solar radiation is only one part of the equation for solar system deployment. Identifying, locating, and prospecting for the appropriate quantity and quality of solar resources to fuel these systems is critical to system designers, investors, financial backers, utilities, governments, and owner/operators. This chapter addresses the fundamentals and state of the art for measuring, modeling, and applying solar radiation resource data to meet decision-making needs.

Myers, D. R.

2012-01-01T23:59:59.000Z

133

A critical review of the ASHRAE solar radiation model  

Science Conference Proceedings (OSTI)

Inconsistencies are shown to exist in the presentation and formulation of the ASHRAE solar radiation model. To remove them, it is proposed: 1. To include in the Fundamentals Handbook the clearness number in the expressions for the direct and, in particular, the sky diffuse irradiation under cloudless conditions, and 2. To rewrite the expressions for cloud sky conditions so that they reduce to the cloudless formulation when the cloud cover is zero and they do not give rise to negative values of the sky diffuse irradiation as is presently the case under certain conditions.

Galanis, N.; Chatigny, R.

1986-01-01T23:59:59.000Z

134

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

DOE Green Energy (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

135

The Effect of Clouds on the Earth's Solar and Infrared Radiation Budgets  

Science Conference Proceedings (OSTI)

The effect of global cloudiness on the solar and infrared components of the earth's radiation balance is studied in general circulation model experiments. A wintertime simulation is conducted in which the cloud radiative transfer calculations use ...

Gerald F. Herman; Man-Li C. Wu; Winthrop T. Johnson

1980-06-01T23:59:59.000Z

136

Local-Scale Variability of Daily Solar Radiation—San Diego County, California  

Science Conference Proceedings (OSTI)

The spatial variability of daily solar radiation values over a region of several hundred square kilometers was examined. Coefficients of variability were obtained as the standard deviations of between-station daily radiation difference divided by ...

Edward Aguado

1986-05-01T23:59:59.000Z

137

The Effect of Cloud Sides on Reflected Solar Radiation as Deduced from Satellite Observations  

Science Conference Proceedings (OSTI)

We report the observation of a feature that is characteristic of the reflection of solar radiation from absorbing, finite clouds. When absorption takes place, more radiation can be reflected by broken cloud fields than by extensive unbroken cloud ...

James A. Coakley Jr.; Roger Davies

1986-05-01T23:59:59.000Z

138

Validation of Solar Radiation Surfaces from MODIS and Reanalysis Data over Topographically Complex Terrain  

Science Conference Proceedings (OSTI)

The magnitude and distribution of incoming shortwave solar radiation (SW?) has significant influence on the productive capacity of forest vegetation. Models that estimate forest productivity require accurate and spatially explicit radiation ...

Todd A. Schroeder; Robbie Hember; Nicholas C. Coops; Shunlin Liang

2009-12-01T23:59:59.000Z

139

Spectral Absorption of Solar Radiation in Cloudy Atmospheres: A 20 cm?1 Model  

Science Conference Proceedings (OSTI)

The spectral of solar radiation in typical water clouds is determined using a radiative transfer model based on LOWTRAN transmission functions at a 20 cm?1 resolution and Monte Carlo simulations of photon pathlength distributions. Relative ...

Roger Davies; William L. Ridgway; Kyung-Eak Kim

1984-07-01T23:59:59.000Z

140

A Model for the Estimation of Global Solar Radiation Using Fuzzy Random Variables  

Science Conference Proceedings (OSTI)

In this paper, the concept of fuzzy random variables is applied for the estimation of global solar radiation on a surface at ground level. The cloudiness index is defined as the fraction of extraterrestrial radiation that reaches the earth's ...

Nalin K. Gautam; N. D. Kaushika

2002-12-01T23:59:59.000Z

Note: This page contains sample records for the topic "baseline 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

Influence of Absorbing Aerosols on the Inference of Solar Surface Radiation Budget and Cloud Absorption  

Science Conference Proceedings (OSTI)

This study addresses the impact of absorbing aerosols on the retrieval of the solar surface radiation budget (SSRB) and on the inference of cloud absorption using multiple global datasets. The data pertain to the radiation budgets at the top of ...

Zhanqing Li

1998-01-01T23:59:59.000Z

142

Origins of the solar radiation biases over the Southern Ocean in CFMIP2 models  

Science Conference Proceedings (OSTI)

Current climate models generally reflect too little solar radiation over the Southern Ocean, which may be the leading cause of the prevalent sea-surface temperature biases in climate models. We study the role of clouds the radiation biases in ...

A. Bodas-Salcedo; K. D. Williams; M. A. Ringer; I. Beau; J. N. S. Cole; J.-L. Dufresne; T. Koshiro; B. Stevens; Z. Wang; T. Yokohata

143

Radiative Heat Transfer Analysis within Three-Dimensional Clouds Subjected to Solar and Sky Irradiation  

Science Conference Proceedings (OSTI)

A three-dimensional radiative heat transfer analysis of an arbitrary-shaped modeled cloud subjected to solar and sky irradiation has been performed. The Radiation Element Method by Ray Emission Model (REM2) was used for numerical simulation. ...

Toru Nishikawa; Shigenao Maruyama; Seigo Sakai

2004-12-01T23:59:59.000Z

144

Sensitivity of Computed Incoming Solar Radiation at the Surface to Cloud Analyses  

Science Conference Proceedings (OSTI)

A radiation model was used to simulate daily incoming solar radiation at four ships during Phase III of GATE. The accuracy of the simulations from several different cloud analyses based on ship or satellite data was estimated by comparison with ...

John T. Ball; Marshall A. Atwater; Stephen J. Thoren

1981-04-01T23:59:59.000Z

145

Human Impact on Direct and Diffuse Solar Radiation during the Industrial Era  

Science Conference Proceedings (OSTI)

In this study the direct and diffuse solar radiation changes are estimated, and they contribute to the understanding of the observed global dimming and the more recent global brightening during the industrial era. Using a multistream radiative ...

Maria M. Kvalevåg; Gunnar Myhre

2007-10-01T23:59:59.000Z

146

Insolation data manual and direct normal solar radiation data manual  

DOE Green Energy (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

147

Daily radiation model for use in the simulation of passive solar buildings  

DOE Green Energy (OSTI)

A model is presented to characterize solar radiation with just three input parameters for each day. This compressed daily radiation data may be used in place of hourly data in simulations of passive solar buildings. This method is tested with the SUNCAT passive simulation. Global horizontal and direct normal radiation data are input using the compressed daily form instead of by hour. Simulation results are found to be comparable to results based on hourly radiation data.

Sillman, S.; Wortman, D.

1981-04-01T23:59:59.000Z

148

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

149

SOLAR RADIATION ESTIMATION ON BUILDING ROOFS AND WEB-BASED SOLAR CADASTRE  

E-Print Network (OSTI)

The aim of this study is the estimation of solar irradiance on building roofs in complex Alpine landscapes. Very high resolution geometric models of the building roofs are generated by means of advanced automated image matching methods. Models are combined with raster and vector data sources to estimate the incoming solar radiation hitting the roofs. The methodology takes into account for atmospheric effects, site latitude and elevation, slope and aspect of the terrain as well as the effects of shadows cast by surrounding buildings, chimneys, dormers, vegetation and terrain topography. An open source software solution has been developed and applied to a study area located in a mountainous site and containing some 1250 residential, commercial and industrial buildings. The method has been validated by data collected with a pyranometer and results made available through a prototype WebGIS platform. 1.

G. Agugiaro A; Commission Ii Wg

2012-01-01T23:59:59.000Z

150

Solar | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

21, 2013 Solar Energy Resources Solar radiation, often called the solar resource, is a general term for the electromagnetic radiation emitted by the sun. Solar radiation can be...

151

Accuracy of Humidity Measurement on Ships: Consideration of Solar Radiation Effects  

Science Conference Proceedings (OSTI)

The effect of heating due to solar radiation on measurements of humidity obtained from ships is examined. Variations in wet- and dry-bulb temperature measured on each side of a research ship are shown to correlate with solar radiation. However, ...

Elizabeth C. Kent; Peter K. Taylor

1996-12-01T23:59:59.000Z

152

Monte Carlo simulation of solar radiation in maize canopies and its visualization  

Science Conference Proceedings (OSTI)

The spatial distribution of solar radiation casts important influences on eco-physiological functions of plant canopies. A simulation model of the three-dimensional of direct and indirect solar radiation in real maize canopies is developed from measured ... Keywords: Monte Carlo algorithm, plant canopy, radiosity, ray tracing, three-dimensional distribution

Zhang Yuan; Lao Cai-lian; Lee Bao-Guo; Chen Yan; Guo Yan; Wang Xi-ping; Ma Yun-tao; Zhao Ming

2007-04-01T23:59:59.000Z

153

Change in regime and transfer function models of global solar radiation in Kuwait  

Science Conference Proceedings (OSTI)

The development of the models for global solar radiation in Kuwait is based on removing the annual periodicity and seasonal variation. The first methodology used here is the change in regime technique that relies on dividing the observations into two ... Keywords: ARMA model, Harmonic analysis, Solar radiation, Transfer function

S. A. Al-Awadhi

2005-09-01T23:59:59.000Z

154

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

DOE Green Energy (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

155

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.4 and 1.3 MJ mÃ?2 for daily irradiation). A comparison with monthly means from about 80 automatic weather

156

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

DOE Green Energy (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

157

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

DOE Green Energy (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

158

An Improvement of the IGMK Model to Derive Total and Diffuse Solar Radiation at the Surface from Satellite Data  

Science Conference Proceedings (OSTI)

For a better understanding, of climate, as well as all kinds of solar power applications it is necessary to know about incoming solar radiation at the surface (global radiation) and its partition into disuse and direct components Over the last ...

Rolf Stuhlmann; Martin Rieland; Ehrhard Paschke

1990-07-01T23:59:59.000Z

159

Comparison of Historical Satellite Based Estimates of Solar Radiation Resources with Recent Rotating Shadowland Radiometer Measurements  

Science Conference Proceedings (OSTI)

Satellite-based solar radiation estimates have recently been incorporated into the 1990-2005 update to the 1961-1990 U.S. National Solar Radiation Database (NSRDB). The National Aeronautics and Space Administration (NASA) also supplies satellite-based estimates of solar radiation. The usefulness of such data with respect to solar resources for site selection and designing solar energy conversion systems is often questioned. 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. We compare the most recent shadowband radiometer MMDT with a complement of thermopile 'first class' solar radiometers at one site. Quantitative analysis shows that in most cases, the long-term average MMDT and measured data are comparable, within 10% of each other for global, and 20% for direct-radiation MMDT.

Myers, D.

2009-01-01T23:59:59.000Z

160

ESTIMATING SPATIAL AND TEMPORAL VARIATIONS IN SOLAR RADIATION WITHIN BORDEAUX WINEGROWING REGION USING REMOTELY SENSED DATA  

E-Print Network (OSTI)

Aims: This paper presents a study solar radiation spatial and temporal variations in Bordeaux winegrowing area, for a 20 year period (1986-2005). Methods and results: Solar radiation data was retrieved from the HelioClim-1 database, elaborated from Meteosat satellite images, using the Heliosat-2 algorithm. Daily data was interpolated using ordinary kriging to produce horizontal solar radiation maps at a 500 m resolution. Using a digital elevation model, high resolution daily solar radiation maps with terrain integration were then produced for the period 2001-2005, at a 50 m resolution. The long term (20 years) analysis of solar radiation at low spatial resolution (500 m) showed a west to east decreasing gradient within Bordeaux vineyards. Mean August-to-September daily irradiation values, on horizontal surface, were used to classify Bordeaux winegrowing areas in three zones: low, medium, and high solar radiation areas. This initial zoning was upscaled at 50 m resolution, applying a local correction ratio, based on 2001-2005 solar radiation on inclined surface analysis. Grapevine development and maturation potential of the different zones of appellation of origin of Bordeaux winegrowing area are discussed in relation with

Benjamin Bois A; Lucien Wald B; Cornelis Van Leeuwen Ac; Commagnac C; Maxime Christen C; Jean-pierre Gaudillere A

2009-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "baseline 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

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

DOE Green Energy (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

162

Seasonal Variation of Aerosol Direct Radiative Forcing and Optical Properties Estimated from Ground-Based Solar Radiation Measurements  

Science Conference Proceedings (OSTI)

The surface direct radiative forcing and optical properties of aerosols have been analyzed from a ground-based solar radiation measurement, which was made under clear-sky conditions in Tsukuba, Japan, over two years from April 1997 to March 1999. ...

Tomoaki Nishizawa; Shoji Asano; Akihiro Uchiyama; Akihiro Yamazaki

2004-01-01T23:59:59.000Z

163

A Three-Dimensional Radiative Transfer Model to Investigate the Solar Radiation within a Cloudy Atmosphere. Part I: Spatial Effects  

Science Conference Proceedings (OSTI)

A new Monte Carlo–based three-dimensional (3D) radiative transfer model of high spectral and spatial resolution is presented. It is used to investigate the difference in broadband solar radiation absorption, top-of-the-atmosphere upwelling, and ...

William O’Hirok; Catherine Gautier

1998-06-01T23:59:59.000Z

164

A Three-Dimensional Radiative Transfer Model to Investigate the Solar Radiation within a Cloudy Atmosphere. Part II: Spectral Effects  

Science Conference Proceedings (OSTI)

In this second part of a two-part paper, the spectral response of the interaction between gases, cloud droplets, and solar radiation is investigated using a Monte Carlo-based three-dimensional (3D) radiative transfer model with a spectral ...

William O’Hirok; Catherine Gautier

1998-10-01T23:59:59.000Z

165

Photovoltaic Advanced Research and Development Project: Solar Radiation Research annual report  

DOE Green Energy (OSTI)

This report gives an overview of the fiscal year 1990 research activities and results under the Solar Radiation Research Task of the Photovoltaic Advanced Research and Development Project at the Solar Energy Research Institute. The activities under this task include developing and applying measurement techniques, instrumentation, and data and models to understand and quantify the response of photovoltaic devices to variations in broadband and spectra solar radiation. The information presented in this report was presented at the SERI Photovoltaic Advanced Research and Development Project 10th Review Meeting, October 1990, and will be published in a special issue of Solar Cells dedicated to the meeting.

Riordan, C.; Hulstrom, R.; Cannon, T.; Myers, D.; Stoffel, T.

1990-11-01T23:59:59.000Z

166

Current Issues in Terrestrial Solar Radiation Instrumentation for Energy, Climate and Space Applications Preprint prepared for New RAD '99  

DOE Green Energy (OSTI)

Reductions of uncertainty in terrestrial solar radiation measurements are needed to validate the Earth's radiation balance derived from satellite data. Characterization of solar energy resources for renewable technologies requires greater time and spatial resolution for economical technology deployment. Solar radiation measurement research at the National Renewable Energy Laboratory addresses calibrations, operational characteristics, and corrections for terrestrial solar radiation measurements. We describe progress in measurements of broadband diffuse-sky radiation, and characterization of field instrument thermal offsets and spectral irradiance. The need and prospects for absolute references for diffuse and long-wave terrestrial solar radiation measurements are discussed. Reductions in uncertainty of broadband irradiance measurements from tens of watts per square meter to a few (one to two) watts per square meter are reported, which reduce time and labor to quantify and identify trends in artificial optical radiation sources, terrestrial solar radiation, and the Earth's radiation budget.

Stoffel, T. L.; Reda, I.; Myers, D. R.; Renne, D.; Wilcox, S. W.; Treadwell, J.

1999-10-20T23:59:59.000Z

167

A Simple Physical Model to Estimate Incident Solar Radiation at the Surface from GOES Satellite Data  

Science Conference Proceedings (OSTI)

We present a model designed to estimate the incident solar radiation at the suface from GOES satellite brightness measurements in clear and cloudy conditions. In this simple physical model, the effect of Rayleigh scattering is taken into account. ...

Catherine Gautier; Georges Diak; Serge Masse

1980-08-01T23:59:59.000Z

168

On the Space–Time Scales of the Surface Solar Radiation Field  

Science Conference Proceedings (OSTI)

The characteristic space–time scales of surface solar radiation fields measured by the 111-instrument MESONET in Oklahoma are estimated after removal of the diurnal cycle. These estimates of “within-day” variability are used to deduce the ...

T. P. Barnett; J. Ritchie; J. Foat; G. Stokes

1998-01-01T23:59:59.000Z

169

A New Shadow-Ring Device for Measuring Diffuse Solar Radiation at the Surface  

Science Conference Proceedings (OSTI)

A new shadow-ring device for measuring diffuse solar radiation at the surface is presented. In this device the seasonal variation of shadow is followed by moving the detector horizontally. This unique characteristic facilitates its application ...

Amauri P. de Oliveira; Antonio J. Machado; João F. Escobedo

2002-05-01T23:59:59.000Z

170

Implementation of a Semiphysical Model for Examining Solar Radiation in the Midwest  

Science Conference Proceedings (OSTI)

A semiphysical solar radiation (SR) model is implemented to generate a new historical daily SR database for 53 locations in nine Midwestern and six adjacent states (available from the Midwestern Climate Center). This model estimates daily SR ...

Mary Schoen Petersen; Peter J. Lamb; Kenneth E. Kunkel

1995-09-01T23:59:59.000Z

171

Determination of the Scaled Optical Thickness of Clouds from Reflected Solar Radiation Measurements  

Science Conference Proceedings (OSTI)

A method is presented for determining the scaled optical thickness of clouds from reflected solar radiation measurements. The procedure compares measurements of the reflection function with asymptotic expressions for the reflection function of ...

Michael D. King

1987-07-01T23:59:59.000Z

172

Analysis of Urban-Rural Solar Radiation Data from St. Louis, Missouri  

Science Conference Proceedings (OSTI)

The results of an analysis of simultaneous measurements of incident solar radiation from six locations in metropolitan St. Louis, Missouri are described. The measurements were taken continuously from September 1975 through March 1977 with ...

James T. Peterson; Thomas L. Stoffel

1980-03-01T23:59:59.000Z

173

A Systematic Study of GCM Sensitivity to Latitudinal Changes in Solar Radiation  

Science Conference Proceedings (OSTI)

Paleoclimatic data and climate model simulations have demonstrated that orbitally forced changes in solar radiation can have a pronounced effect on global climate. Key questions remain, however, about the spatial patterns in the climatic ...

Benjamin Felzer; Robert J. Oglesby; Hong Shao; Thompson Webb III; Dena E. Hyman; Warren L. Prell; John E. Kutzbach

1995-04-01T23:59:59.000Z

174

Seasonal Changes in Solar Radiation and Relative Humidity in Europe in Response to Global Warming  

Science Conference Proceedings (OSTI)

Future seasonal changes in surface incident solar radiation and relative humidity (RH) over Europe and adjacent ocean areas were assessed based on phase 3 of the Coupled Model Intercomparison Project (CMIP3) model ensemble. Under the A1B scenario, ...

Kimmo Ruosteenoja; Petri Räisänen

2013-04-01T23:59:59.000Z

175

Clear-Sky Direct-Beam Solar Radiation Versus Altitude: A Proposal for Standard Soundings  

Science Conference Proceedings (OSTI)

The author reexamines Klein's (1948) quantitative statements relating clear-sky direct-beam solar radiation to altitude for the lower troposphere, which are of the form (transmissivity) = B + A log (altitude). Klein's summaries are judged to be ...

William P. Lowry

1980-11-01T23:59:59.000Z

176

Retrieval of Surface Solar Radiation Budget under Ice Cloud Sky: Uncertainty Analysis and Parameterization  

Science Conference Proceedings (OSTI)

This study investigates and accounts for the influence of various ice cloud parameters on the retrieval of the surface solar radiation budget (SSRB) from reflected flux at the top of the atmosphere (TOA). The optical properties of ice clouds ...

Ying Zhang; Zhanqing Li; Andreas Macke

2002-10-01T23:59:59.000Z

177

Impact of Cloud Cover on Solar Radiative Biases in Deep Convective Regimes  

Science Conference Proceedings (OSTI)

Conflicting claims have been made concerning the magnitude of the bias in solar radiative transfer calculations when horizontal photon transport is neglected for deep convective scenarios. The difficulty of obtaining a realistic set of cloud ...

F. Di Giuseppe; A. M. Tompkins

2005-06-01T23:59:59.000Z

178

An Accurate Parameterization of the Solar Radiative Properties of Cirrus Clouds for Climate Models  

Science Conference Proceedings (OSTI)

An accurate parameterization of the solar radiative properties of cirrus clouds is developed based on improved light scattering calculations. Here 28 ice crystal size distributions from in situ aircraft observations in both tropical and ...

Qiang Fu

1996-09-01T23:59:59.000Z

179

Solar Radiative Fluxes for Stochastic, Scale-invariant Broken Cloud Fields  

Science Conference Proceedings (OSTI)

Solar radiative fluxes for broken, cumuloform cloud fields are examined from the point of view of subgrid parameterization for general circulation models (GCMs). A simple stochastic scaling model is used to simulate extensive broken cloud fields ...

Howard W. Barker; John A. Davies

1992-07-01T23:59:59.000Z

180

Data Quality Assessment and the Long-Term Trend of Ground Solar Radiation in China  

Science Conference Proceedings (OSTI)

Solar radiation is one of the most important factors affecting climate and the environment. Routine measurements of irradiance are valuable for climate change research because of long time series and areal coverage. In this study, a set of ...

Guang-Yu Shi; Tadahiro Hayasaka; Atsumu Ohmura; Zhi-Hua Chen; Biao Wang; Jian-Qi Zhao; Hui-Zheng Che; Li Xu

2008-04-01T23:59:59.000Z

Note: This page contains sample records for the topic "baseline 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

Assessing 1D Atmospheric Solar Radiative Transfer Models: Interpretation and Handling of Unresolved Clouds  

Science Conference Proceedings (OSTI)

The primary purpose of this study is to assess the performance of 1D solar radiative transfer codes that are used currently both for research and in weather and climate models. Emphasis is on interpretation and handling of unresolved clouds. ...

H. W. Barker; G. L. Stephens; P. T. Partain; J. W. Bergman; B. Bonnel; K. Campana; E. E. Clothiaux; S. Clough; S. Cusack; J. Delamere; J. Edwards; K. F. Evans; Y. Fouquart; S. Freidenreich; V. Galin; Y. Hou; S. Kato; J. Li; E. Mlawer; J.-J. Morcrette; W. O'Hirok; P. Räisänen; V. Ramaswamy; B. Ritter; E. Rozanov; M. Schlesinger; K. Shibata; P. Sporyshev; Z. Sun; M. Wendisch; N. Wood; F. Yang

2003-08-01T23:59:59.000Z

182

Ocean Radiant Heating. Part II: Parameterizing Solar Radiation Transmission through the Upper Ocean  

Science Conference Proceedings (OSTI)

Accurate determination of sea surface temperature (SST) is critical to the success of coupled ocean–atmosphere models and the understanding of global climate. To accurately predict SST, both the quantity of solar radiation incident at the sea ...

J. Carter Ohlmann; David A. Siegel

2000-08-01T23:59:59.000Z

183

Coastal-inland solar radiation difference study. Final report  

DOE Green Energy (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

184

Net Solar radiation: passive systems with moveable insulation  

Science Conference Proceedings (OSTI)

Heat loss from uninsulated glazings of passive solar collectors can be checked by use of movable insulation. Five passivehybrid solar energy systems are studied in this paper. The buildings are monitored by the National Solar Data Network (NSDN) whose system is shown schematically. Tests show that no high cost direct gain solar systems were economically viable without movable insulation. Monitored seasonal performance of the five sites showed three good, and two poor performances. Each case is specified in detail.

Howard, B.D.

1982-06-01T23:59:59.000Z

185

Transmission of Solar Radiation by Clouds over Snow and Ice Surfaces. Part II: Cloud Optical Depth and Shortwave Radiative Forcing from Pyranometer Measurements in the Southern Ocean  

Science Conference Proceedings (OSTI)

Downward solar irradiance at the sea surface, measured on several voyages of an icebreaker in the Southern Ocean, is used to infer transmittance of solar radiation by clouds. Together with surface albedo estimated from coincident hourly sea ice ...

Melanie F. Fitzpatrick; Stephen G. Warren

2005-11-01T23:59:59.000Z

186

Radiative cooling and solar heating potential by using various roofing materials  

Science Conference Proceedings (OSTI)

The results of testing over twenty typical and potential roofing materials such as: corrugated galvanized steel, corrugated clear fiberglass, 90number black roll roofing, 90number green roll roofing, 90number red roll roofing, 90number brown roll roofing, 90number white roll roofing, 240number brown asphalt shingles, anodized aluminum, etc. under exposure to solar and nocturnal sky radiation are presented. Some cadmium sulfite solar cells and silicon solar cells are being tested as potential future roofing panels. Graphs showing the temperature variation of each material versus testing time are given for a heating and a cooling cycle. The environmental conditions of testing such as: solar insolation, apparent sky temperature, ambient air temperature, relative humidity and wind speed are also given. On the basis of preliminary results obtained during the testing of roofing materials, several mini-modules of an integrated collector/radiator/ roof element with the dimensions 0.6 m x 0.6 m (2 ft x 2 ft) were constructed and tested. The thermal response of the mini-modules under solar and nocturnal sky radiation is shown and the testing results are discussed. The spectral transmittance curves for nine transparent cover materials are also presented. The preliminary results indicate that solar radiation and nocturnal sky radiation could be used effectively by employing an integrated collector/radiator structure.

Pytlinski, J.T.; Connell, H.L.; Conrad, G.R.

1980-12-01T23:59:59.000Z

187

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

188

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

189

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

190

Transition radiation in turbulent astrophysical medium. Application to solar radio bursts  

E-Print Network (OSTI)

Modern observations and models of various astrophysical objects suggest that many of their physical parameters fluctuate substantially at different spatial scales. The rich variety of the emission processes, including Transition Radiation but not limited to it, arising in such turbulent media constitutes the scope of Stochastic Theory of Radiation. We review general approaches applied in the stochastic theory of radiation and specific methods used to calculate the transition radiation produced by fast particles in the magnetized randomly inhomogeneous plasma. The importance of the theory of transition radiation for astrophysics is illustrated by one example of its detailed application to a solar radio burst, including specially designed algorithms of the spectral forward fitting.

Gregory D. Fleishman; Dale E. Gary; Gelu M. Nita

2007-10-01T23:59:59.000Z

191

Simulation of dynamics of radiation belt electrons during geomagnetic storms driven by high speed solar wind streams.  

E-Print Network (OSTI)

??Satellite observations have shown that fluxes of relativistic electrons in the earth's radiation belts can vary by orders of magnitude during periods of high solar… (more)

Yu, Bin

2007-01-01T23:59:59.000Z

192

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

DOE Green Energy (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

193

Modeling the Global Solar Radiation on the Earth’s Surface Using Atmospheric Deterministic and Intelligent Data-Driven Techniques  

Science Conference Proceedings (OSTI)

Three methods for analyzing and modeling the global shortwave radiation reaching the earth’s surface are presented in this study. Solar radiation is a very important input for many aspects of climatology, hydrology, atmospheric sciences, and ...

M. Santamouris; G. Mihalakakou; B. Psiloglou; G. Eftaxias; D. N. Asimakopoulos

1999-10-01T23:59:59.000Z

194

Aerosol Radiative Impact on Spectral Solar Flux at the Surface, Derived from Principal-Plane Sky Measurements  

Science Conference Proceedings (OSTI)

Accurate measurements of the spectral solar flux reaching the surface in cloud-free conditions are required to determine the aerosol radiative impact and to test aerosol models that are used to calculate radiative forcing of climate. Spectral ...

Y. J. Kaufman; D. Tanré; B. N. Holben; S. Mattoo; L. A. Remer; T. F. Eck; J. Vaughan; Bernadette Chatenet

2002-02-01T23:59:59.000Z

195

The Impact of Ice Crystal Shapes, Size Distributions, and Spatial Structures of Cirrus Clouds on Solar Radiative Fluxes  

Science Conference Proceedings (OSTI)

The solar radiative properties of cirrus clouds depend on ice particle shape, size, and orientation, as well as on the spatial cloud structure. Radiation schemes in atmospheric circulation models rely on estimates of cloud optical thickness only. ...

I. Schlimme; A. Macke; J. Reichardt

2005-07-01T23:59:59.000Z

196

Radiation Dry Bias in the TWP-ICE Radiosonde Soundings Solar Zenith Angle Correction Factor  

NLE Websites -- All DOE Office Websites (Extended Search)

Radiation Dry Bias in the TWP-ICE Radiosonde Soundings Radiation Dry Bias in the TWP-ICE Radiosonde Soundings Solar Zenith Angle Correction Factor Figure 3: Ratio of MWR TCWV to radiosonde derived TCWV, and the solar zenith angle at the radiosonde launch time (black dots). The dry bias observed in sonde TCWV values is mainly attributable to a dry RH bias near the surface The red dots show the 1000 hPa RH correction factors suggested by Voemel et al for sondes launched near noon (10-30 degree solar zenith angle), and at night time (90 degree zenith angle). The green line shows a modified RH correction factor which is a function of the solar zenith angle. ● During the day-time, the TCWV bias is significantly smaller when the zenith angle correction is applied than when no correction, or only the Crad and Ccal corrections are applied.

197

An overview of NREL's PV solar radiation research task activities and results  

SciTech Connect

This paper presents an overview of the recent activities and results of the Photovoltaics (PV) Solar Radiation Research task of NREL's PV Advanced Research and Development (PVAR D) Project. Topics covered include the Atmospheric Optical Calibration System (AOCS) and instrumentation systems for monitoring and characterizing the solar irradiance available to PV systems. Both types of instrumentation systems and activities are required for a thorough understanding of PV device performance and design.

Hulstrom, R.L.; Cannon, T.W.; Stoffel, T.; Riordan, C.J. (National Renewable Energy Laboratory (NREL), 1617 Cole Blvd., Golden, Colorado 80401 (United States))

1992-12-01T23:59:59.000Z

198

Comparison of Solar UVA and UVB Radiation Measured in Selangor, Malaysia  

Science Conference Proceedings (OSTI)

The solar ultraviolet A (UVA) radiation data was measured at Physics Building, Universiti Kebangsaan Malaysia (2 degree sign 55' N, 101 degree sign 46' E, 50m asl) by the Xplorer GLX Pasco that connected to UVA Light sensor. The measured solar UVA data were compared with the total daily solar ultraviolet B (UVB) radiation data recorded by the Malaysian Metrological Department at Petaling Jaya, Malaysia (3 degree sign 06' N, 101 degree sign 39' E, 50m asl) for 18 days in year 2007. The daily total average of UVA radiation received is (298{+-}105) kJm{sup -2} while the total daily maximum is (600{+-}56) kJm{sup -2}. From the analysis, it shows that the values of UVA radiation data were higher than UVB radiation data with the average ratio of 6.41% between 3-14%. A weak positive correlation was found (the correlation coefficient, r, is 0.22). The amount of UVA radiation that reached the earth surface is less dependence on UVB radiation and the factors were discussed.

Kamarudin, S. U.; Gopir, G.; Yatim, B. [Faculty of Science and Technology, Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor (Malaysia); Institute of Space Science (ANGKASA), Level 2, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, 43600 UKM Bangi, Selangor (Malaysia); Sanusi, H. [Institute of Space Science (ANGKASA), Level 2, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, 43600 UKM Bangi, Selangor (Malaysia); Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor (Malaysia); Mahmud, P. S. Megat; Choo, P. Y. [Faculty of Science and Technology, Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor (Malaysia)

2010-07-07T23:59:59.000Z

199

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

Science Conference Proceedings (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

200

Solar radiation flux and insolation data for southern Idaho  

DOE Green Energy (OSTI)

Weather data pertinent to the development of solar energy heating in the Northern Intermountain region were desired for the purpose of assessing the usefulness and potential economics of utilizing solar energy in the region. The data reported herein are for several southern Idaho stations and for Salt Lake City, and are considered to be representative of the area from the eastern slopes of the Cascades to the western slopes of the northern Rockies. While existing data are not highly accurate and are derived from widely separated stations, approximate estimates may be made for the solar flux in the area. Methods for acquiring more detailed data in specific locations are described in this report. (auth)

Buchenauer, C.J.

1975-11-01T23:59:59.000Z

Note: This page contains sample records for the topic "baseline 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

1Electricity from Sunlight: The RBSP Spacecraft Solar Panels NASA's twin Radiation Belts Storm Probe (RBSP) spacecraft will be  

E-Print Network (OSTI)

satellite to the nearest hundred watts? Space Math http://spacemath.gsfc.nasa.gov #12;Answer Key 1 Problem 11Electricity from Sunlight: The RBSP Spacecraft Solar Panels NASA's twin Radiation Belts Storm of the 10 solar cells in square-meters? Problem 3 ­ The amount of electrical power generated by a solar

202

Variation of Direct Beam Solar Radiation in the United States Due to the El Chichon Debris Cloud  

Science Conference Proceedings (OSTI)

Direct beam hourly solar radiation values, measured near solar noon under clear skies, were used to show the decrease in radiation in the United States caused by the debris cloud from the El Chichon volcanic eruption of March/April 1982. Maximum ...

W. H. Hoecker; G. F. Cotton; E. C. Flowers

1985-01-01T23:59:59.000Z

203

Empirical Estimation of Daily Clear Sky Solar Radiation  

Science Conference Proceedings (OSTI)

The suitability of two simple empirical equations for the estimation of clear sky radiation was investigated. Results indicated that latitude and altitude were sufficient to estimate the empirical equation coefficients and that the estimates of ...

D. F. Heermann; G. J. Harrington; K. M. Stahl

1985-03-01T23:59:59.000Z

204

Tropospheric Influence on Solar Ultraviolet Radiation: The Role of Clouds  

Science Conference Proceedings (OSTI)

Measurements obtained from several Robertson-Berger (RB) meters over the course of one year define the role of cloud cover in moderating biologically effective ultraviolet radiation at the Earth's surface. In an annual mean sense, clouds reduce ...

John E. Frederick; Hilary E. Snell

1990-03-01T23:59:59.000Z

205

Brazil Global Horizontal Solar Radiation Model (40km) from INPE | OpenEI  

Open Energy Info (EERE)

40km) from INPE 40km) from INPE Dataset Summary Description (Abstract): Global horizontal solar radiation in kWh/m2/day for 1 year organized into cells with 40km x 40km (Purpose): To provide a set of consistent, reliable, verifiable, and accessible global data sets for international and in-country investors and other stakeholders (Supplemental Information): The BRASIL-SR model and the SPRING software (both developed by INPE - National Institute for Space Research) were used to produce the dataset and SHAPE files. The assessment of reliability levels of the BRASIL-SR model were performed through the evaluation of the deviations shown by the estimated values for solar radiation flux vis-à-vis the values measured at the surface (ground truth). This evaluation was done in two phases. The first phase consisted in an inter-comparison between the core radiation transfer models adopted by the SWERA Project to map the solar energy in the various countries participating in the project. The HELIOSAT model took art in this phase like benchmark due to its employment to map solar energy resources in countries from European Union. In the second phase, the solar flux estimates provided by the BRASIL-SR model were compared with measured values acquired at several solarimetric stations spread along the Brazilian territory.

206

Brazil Direct Normal Solar Radiation Model (40km) from INPE and LABSOLAR |  

Open Energy Info (EERE)

40km) from INPE and LABSOLAR 40km) from INPE and LABSOLAR Dataset Summary Description (Abstract): Normal direct solar radiation in kWh/m2/day for 1 year organized into cells with 40km x 40km (Purpose): To provide a set of consistent, reliable, verifiable, and accessible global data sets for international and in-country investors and other stakeholders (Supplemental Information): The BRASIL-SR model and the SPRING software (both developed by INPE - National Institute for Space Research) were used to produce the dataset and SHAPE files. The assessment of reliability levels of the BRASIL-SR model were performed through the evaluation of the deviations shown by the estimated values for solar radiation flux vis-à-vis the values measured at the surface (ground truth). This evaluation was done in two phases. The first phase consisted in an inter-comparison between the core radiation transfer models adopted by the SWERA Project to map the solar energy in the various countries participating in the project. The HELIOSAT model took part in this phase like benchmark due to its employment to map solar energy resources in countries from European Union. In the second phase, the solar flux estimates provided by the BRASIL-SR model were compared with measured values acquired at several solarimetric stations spread along the Brazilian territory.

207

Brazil Direct Normal Solar Radiation Model (10km) from INPE and LABSOLAR |  

Open Energy Info (EERE)

10km) from INPE and LABSOLAR 10km) from INPE and LABSOLAR Dataset Summary Description (Abstract): Normal direct solar radiation in kWh/m2/day for 1 year organized into cells with 10km x 10km (Purpose): The BRASIL-SR model and the SPRING software (both developed by INPE - National Institute for Space Research) were used to produce the dataset and SHAPE files (Supplemental Information): The assessment of reliability levels of the BRASIL-SR model were performed through the evaluation of the deviations shown by the estimated values for solar radiation flux vis-à-vis the values measured at the surface (ground truth). This evaluation was done in two phases. The first phase consisted in an inter-comparison between the core radiation transfer models adopted by the SWERA Project to map the solar energy in the various countries participating in the project. The HELIOSAT model took part in this phase like benchmark due to its employment to map solar energy resources in countries from European Union. In the second phase, the solar flux estimates provided by the BRASIL-SR model were compared with measured values acquired at several solarimetric stations spread along the Brazilian territory

208

Brazil Global Horizontal Solar Radiation Model (10km) from INPE | OpenEI  

Open Energy Info (EERE)

10km) from INPE 10km) from INPE Dataset Summary Description (Abstract): Global horizontal solar radiation in kWh/m2/day for 1 year organized into cells with 10km x 10km (Purpose): The BRASIL-SR model and the SPRING software (both developed by INPE - National Institute for Space Research) were used to produce the dataset and SHAPE files (Supplemental Information): The assessment of reliability levels of the BRASIL-SR model were performed through the evaluation of the deviations shown by the estimated values for solar radiation flux vis-à-vis the values measured at the surface (ground truth). This evaluation was done in two phases. The first phase consisted in an inter-comparison between the core radiation transfer models adopted by the SWERA Project to map the solar energy in the various countries participating in the project. The HELIOSAT model took part in this phase like benchmark due to its employment to map solar energy resources in countries from European Union. In the second phase, the solar flux estimates provided by the BRASIL-SR model were compared with measured values acquired at several solarimetric stations spread along the Brazilian territory

209

Brazil Latitude Tilted Solar Radiation Model (10km) from INPE and LABSOLAR  

Open Energy Info (EERE)

10km) from INPE and LABSOLAR 10km) from INPE and LABSOLAR Dataset Summary Description (Abstract): Latitude tilted solar radiation in kWh/m2/day for 1 year organized into cells with 10km x 10km (Purpose): The BRASIL-SR model and the SPRING software (both developed by INPE -National Institute for Space Research) were used to produce the dataset and SHAPE files (Supplemental Information): The assessment of reliability levels of the BRASIL-SR model were performed through the evaluation of the deviations shown by the estimated values for solar radiation flux vis-à-vis the values measured at the surface (ground truth). This evaluation was done in two phases. The first phase consisted in an inter-comparison between the core radiation transfer models adopted by the SWERA Project to map the solar energy in the various countries participating in the project. The HELIOSAT model took part in this phase like benchmark due to its employment to map solar energy resources incountries from European Union. In the second phase, the solar flux estimates providedby the BRASIL-SR model were compared with measured values acquired at several solarimetric stations spread along the Brazilian territory

210

STANDARD SOLAR NEUTRINOS  

E-Print Network (OSTI)

The predictions of an improved standard solar model are compared with the observations of the four solar neutrino experiments. The improved model includes premain sequence evolution, element diffusion, partial ionization effects, and all the possible nuclear reactions between the main elements. It uses updated values for the initial solar element abundances, the solar age, the solar luminosity, the nuclear reaction rates and the radiative opacities. Neither nuclear equilibrium, nor complete ionization are assumed. The calculated 8 B solar neutrino flux is consistent, within the theoretical and experimental uncertainties, with the solar neutrino flux measured by Kamiokande. The results from the 37 Cl and 71 Ga radiochemical experiments seem to suggest that the terrestrial 7 Be solar neutrino flux is much smaller than that predicted. However, the present terrestrial “defecit ” of 7 Be solar neutrinos may be due to the use of inaccurate theoretical neutrino absorption cross sections near threshold for extracting solar neutrino fluxes from production rates. Conclusive evidence for a real deficit of 7 Be solar neutrinos will require experiments such as BOREXINO or HELLAZ. A real defecit of 7 Be solar neutrinos can be due to either astrophysical reasons or neutrino properties beyond the standard electroweak model. Only future neutrino experiments, such as SNO, Superkamiokande, BOREXINO and HELLAZ, will be able to provide conclusive evidence that the solar neutrino problem is a consequence of neutrino properties beyond the standard electroweak model. Earlier indications may be provided by long baseline neutrino oscillation experiments. 1

Arnon Dar

2008-01-01T23:59:59.000Z

211

Evaluation of Various Methods for Estimating Global Solar Radiation in the Southeastern United States  

Science Conference Proceedings (OSTI)

Global solar radiation Rg is an important input for crop models to simulate crop responses. Because the scarcity of long and continuous records of Rg is a serious limitation in many countries, Rg is estimated using models. For crop-model ...

Prem Woli; Joel O. Paz

2012-05-01T23:59:59.000Z

212

An Efficient Method for Computing the Absorption of Solar Radiation by Water Vapor  

Science Conference Proceedings (OSTI)

An efficient method has been developed to compute the absorption of solar radiation by water vapor. The method is based on the molecular line parameters compiled by McClatchey et al. (1973) and makes use of the far-wing scaling approximation and ...

Ming-Dah Chou; Albert Arking

1981-04-01T23:59:59.000Z

213

Numerical Simulation of Coastal Flows when Solar Radiation is Blocked by Smoke  

Science Conference Proceedings (OSTI)

Smoke from fires ignited in a large-scale nuclear exchange would greatly reduce the flux of solar radiation at the ground and lead to rapid cooling over continental regions. Because of its large heat capacity, the ocean would cool more slowly so ...

Charles R. Molenkamp

1989-05-01T23:59:59.000Z

214

Analysis of Broadband Solar Radiation and Albedo over the Ocean Surface at COVE  

Science Conference Proceedings (OSTI)

A coupled atmosphere–ocean radiative transfer model has been applied to analyze a full year of broadband solar irradiances (up and down) measured over an ocean site 25 km east of the coast of Virginia in the Atlantic. The coupled model treats ...

Zhonghai Jin; Thomas P. Charlock; Ken Rutledge

2002-10-01T23:59:59.000Z

215

Forecasting Solar Radiation -- Preliminary Evaluation of an Approach Based upon the National Forecast Database  

DOE Green Energy (OSTI)

Our objective is to develop, and undertake a preliminary evaluation of a simple solar radiation forecast model using sky cover predictions from the National Digital Forecast Database as an input. This report describes the model and presents a limited evaluation of its performance against ground-measured and satellite-derived irradiances in Albany, New York.

Perez, R.; Moore, K.; Wilcox, S.; Renne, D.; Zelenka, A.

2007-01-01T23:59:59.000Z

216

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

DOE Green Energy (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

217

Transmission of Solar Radiation by Clouds over Snow and Ice Surfaces: A Parameterization in Terms of Optical Depth, Solar Zenith Angle, and Surface Albedo  

Science Conference Proceedings (OSTI)

A multilevel spectral radiative transfer model is used to develop simple but accurate parameterizations for cloud transmittance as a function of cloud optical depth, solar zenith angle, and surface albedo, for use over snow, ice, and water ...

Melanie F. Fitzpatrick; Richard E. Brandt; Stephen G. Warren

2004-01-01T23:59:59.000Z

218

An improved multipyranometer array for the measurement of direct and diffuse solar radiation  

E-Print Network (OSTI)

This thesis describes the development of an improved multipyranometer array (NDA) for the continuous remote measurement of direct and diff-use solar radiation. The NWA described in this thesis is an improvement over previously published MPA studies due to the incorporation of an artificial horizon that prevents reflected ground radiation from striking the tilted sensors, the development of an improved solution scheme for the calculation of the beam and diff-use solar radiation components, and the development of an empirical spectral correction for the photovoltaic-type sensors used in the NWA. In this thesis a description of the NIST-traceable calibration facility is provided and results are presented that compare the NWA predicted beam to beam measurements from a precision normal incidence pyrheliometer.

Munger, Bryce Kirtley

1997-01-01T23:59:59.000Z

219

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

220

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 "baseline 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

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

E-Print Network (OSTI)

This thesis describes the development of an improved multipyranometer array (MPA) for the continuous remote measurement of direct and diffuse solar radiation. The MPA described in this thesis is an improvement over previously published MPA studies due to the incorporation of an artificial horizon that prevents reflected ground radiation from striking the tilted sensors, the development of an improved solution scheme for the calculation of the beam and diffuse solar radiation components, and the development of an empirical spectral correction for the photovoltaic-type sensors used in the MPA. In this thesis a description of the NIST-traceable calibration facility is provided and results are presented that compare the MPA predicted beam to beam measurements from a precision normal incidence pyrheliometer.

Munger, Bryce Kirtley

1997-12-01T23:59:59.000Z

222

Modeling topographic influences on solar radiation: A manual for the SOLARFLUX Model  

DOE Green Energy (OSTI)

SOLARFLUX is a geographical information system (GIS) based computer program (running under ARC/INFO and GRID) that models incoming solar radiation based on surface orientation (slope and aspect), solar angle (azimuth and zenith) as it shifts over time, shadows caused by topographic features, and atmospheric conditions. A convenient user interface allows specification of program parameters including latitude, time interval for simulation, file name of a topographic surface, atmospheric conditions (transmittivity), and file names for output. The user specifies a topographic surface as an array of elevation values (GRID). SOLARFLUX generates five basic types of output: 1) total direct radiation, 2) duration of direct sunlight, 3) total diffuse radiation, 4) skyview factor, and 5) hemispherical viewsheds of sky obstruction for specified surface locations. This manual serves as the comprehensive guide to SOLARFLUX. Included are discussions on modeling insolation on complex surfaces, our theoretical approach, program setup and operation, and a set of applications illustrating characteristics of topographic insolation modeling.

Rich, P.M.; Hetrick, W.A.; Saving, S.C. [Univ. of Kansas, Lawrence, KS (United States)

1995-11-01T23:59:59.000Z

223

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

SciTech Connect

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

224

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

DOE Green Energy (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

225

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

226

Brazil PAR Solar Radiation Model (40km) from INPE and LABSOLAR | OpenEI  

Open Energy Info (EERE)

40km) from INPE and LABSOLAR 40km) from INPE and LABSOLAR Dataset Summary Description (Abstract): Photosynthetically active radiation in kWh/m2/day for 1 year organized into cells with 40km x 40km (Purpose): The BRASIL-SR model and the SPRING software (both developed by INPE - National Institute for Space Research) were used to produce the dataset and SHAPE files (Supplemental Information): The assessment of reliability levels of the BRASIL-SR model were performed through the evaluation of the deviations shown by the estimated values for solar radiation flux vis-à-vis the values measured at the surface (ground truth). This evaluation was done in two phases. The first phase consisted in an inter-comparison between the core radiation transfer models adopted by the SWERA Project to map the solar energy in the various countries participating in the project. The HELIOSAT model took part in this phase like benchmark due to its employment to map solar energy resources in countries from European Union. In the second phase, the solar flux estimates provided by the BRASIL-SR model were compared with measured values acquired at several solarimetric stations spread along the Brazilian territory

227

Brazil PAR Solar Radiation Model (10km) from INPE and LABSOLAR | OpenEI  

Open Energy Info (EERE)

10km) from INPE and LABSOLAR 10km) from INPE and LABSOLAR Dataset Summary Description (Abstract): Photosynthetically active radiation in kWh/m2/day for 1 year organized into cells with 10km x 10km (Purpose): The BRASIL-SR model and the SPRING software (both developed by INPE -National Institute for Space Research) were used to produce the dataset and SHAPE files (Supplemental Information): The assessment of reliability levels of the BRASIL-SR model were performed through the evaluation of the deviations shown by the estimated values for solar radiation flux vis-à-vis the values measured at the surface (ground truth). This evaluation was done in two phases. The first phase consisted in an inter-comparison between the core radiation transfer models adopted by the SWERA Project to map the solar energy in the various countries participating in the project. The HELIOSAT model took part in this phase like benchmark due to its employment to map solar energy resources in countries from European Union. In the second phase, the solar flux estimates provided by the BRASIL-SR model were compared with measured values acquired at several solarimetric stations spread along the Brazilian territory

228

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

DOE Green Energy (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

229

Mars Surface Radiation Exposure for Solar Maximum Conditions and 1989 Solar Proton Events  

Science Conference Proceedings (OSTI)

The Langley heavy-ion/nucleon transport code, HZETRN, and the high-energy nucleon transport code, BRYNTRN, are used to predict the propagation of galactic cosmic rays (GCR''s) and solar flare protons through the carbon dioxide atmosphere of Mars. Particle ...

Simonsen Lisa C.; Nealy John E.

2003-02-01T23:59:59.000Z

230

RADIATION PRESSURE ON BACTERIAL CLUMPS IN THE SOLAR VICINITY AND THEIR SURVIVAL BETWEEN INTERSTELLAR TRANSITS  

E-Print Network (OSTI)

Abstract. Radiation pressure cross-sections for clumps of hollow bacterial grains with thin coatings of graphite are calculated using rigorous Guttler formulae. The carbonized skins are expected to form through exposure to solar ultraviolet radiation, but a limiting thickness of about 0.03 µm is determined by opacity effects. The ratios of radiation pressure to gravity P/G are calculated for varying sizes of the clumps and for varying thickness of the graphite coatings. Bacterial clumps and individual desiccated bacteria without coatings of radii in the range 0.3–8 µm have P/G ratios less than unity, whereas particles with coatings of 0.02µm thickness have ratios in excess of unity. Such coatings also provide protection from damaging ultraviolet radiation. Putative cometary bacteria, such as have been recently collected in the stratosphere, are thus not gravitationally bound in the solar system provided they possess carbonised exterior coatings. They are rapidly expelled from the solar system reaching nearby protosolar nebulae in timescales of a few million years. Even with the most pessimistic assumptions galactic cosmic rays are unable to diminish viability to an extent that vitiates the continuity of panspermia. 1.

unknown authors

2003-01-01T23:59:59.000Z

231

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

E-Print Network (OSTI)

This paper describes an improved multipyranometer array (MPA) for the continuous remote measurement of direct and diffuse solar radiation. The MPA described in this paper is an improvement over previously published MPA studies due to the incorporation of an artificial horizon that prevents reflected ground radiation from striking the tilted sensors. In this paper a description of the NIST-traceable calibration facility is provided and preliminary results are presented that compare the MPA predicted beam to beam measurements from a precision normal incidence pyrheliometer and diffuse measurements from a precision shadow-band pyranometer respectively.

Munger, B.; Haberl, J. S.

1994-01-01T23:59:59.000Z

232

Concentrating Photovoltaic Module Testing at NREL's Concentrating Solar Radiation Users Facility  

DOE Green Energy (OSTI)

There has been much recent interest in photovoltaic modules designed to operate with concentrated sunlight (>100 suns). Concentrating photovoltaic (CPV) technology offers an exciting new opportunity as a viable alternative to dish Stirling engines. Advantages of CPV include potential for>40% cell efficiency in the long term (25% now), no moving parts, no intervening heat transfer surface, near-ambient temperature operation, no thermal mass, fast response, concentration reduces cost of cells relative to optics, and scalable to a range of sizes. Over the last few years, we have conducted testing of several CPV modules for DOEs Concentrating Solar Power (CSP) program. The testing facilities are located at the Concentrating Solar Radiation Users Facility (CRULF) and consist the 10 kW High-Flux Solar Furnace (HFSF) and a 14m2 Concentrating Technologies, LLC (CTEK) dish. This paper will primarily describe the test capabilities; module test results will be detailed in the presentation.

Bingham, C.; Lewandowski, A.; Stone, K.; Sherif, R.; Ortabasi, U.; Kusek, S.

2003-05-01T23:59:59.000Z

233

Solar Radiation Data Manual for Flat-Plate and Concentrating Collectors  

Office of Scientific and Technical Information (OSTI)

Solar Radiation Data Manual Solar Radiation Data Manual for Flat-Plate and Concentrating Collectors NOTICE This report was prepared as an account of work sponsored by an agency of the United States government. Neither the United States government nor any agency thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefuleness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or imply iots endorsement, recommendation, or favoring by the United States government or any agency thereof. The views and opinions of authors expressed herein do not

234

Brazil Latitude Tilted Solar Radiation Model (40km) from INPE and LABSOLAR  

Open Energy Info (EERE)

40km) from INPE and LABSOLAR 40km) from INPE and LABSOLAR Dataset Summary Description (Abstract): Latitude tilted solar radiation in kWh/m2/day for 1 year organized into cells with 40km x 40km (Purpose): To provide a set of consistent, reliable, verifiable, and accessible global data sets for international and in-country investors and other stakeholders (Supplemental Information): The BRASIL-SR model and the SPRING software (both developed by INPE - National Institute for Space Research) were used to produce the dataset and SHAPE files.The assessment of reliability levels of the BRASIL-SR model were performed through the evaluation of the deviations shown by the estimated values for solar radiation flux vis-à-vis the values measured at the surface (ground truth). This evaluation was done in two phases. The first phase

235

Preliminary investigation of user requirements for solar radiation data. Final report  

DOE Green Energy (OSTI)

The intent of this study is to: (1) make a preliminary assessment of the accuracy and precision of insolation data with respect to user requirements, and (2) make a corresponding assessment of the minimum/maximum geographic network coverage. In order to make these preliminary assessments, several specific questions have been addressed. Specifically: (1) how should users of solar radiation be classified and what principal uses of the data are made by each class, (2) what temporal and spatial properties of the data network are required to adequately serve the defined uses and users of solar radiation data, (3) to what degree does the existing network and associated data fulfill the desired data system properties, and (4) what criteria should be applied in identifying and evaluating expanded network/data options. The findings and conclusions of investigation of these questions are presented.

Hamilton, C.W.; Thomas, R.E.

1976-10-29T23:59:59.000Z

236

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

Open Energy Info (EERE)

national laboratory of the U.S. Department of Energy national laboratory of the U.S. Department of Energy Office of Energy Efficiency & Renewable Energy National Renewable Energy Laboratory Innovation for Our Energy Future National Solar Radiation Database 1991-2005 Update: User's Manual Technical Report NREL/TP-581-41364 April 2007 NREL is operated by Midwest Research Institute ● Battelle Contract No. DE-AC36-99-GO10337 National Solar Radiation Database 1991-2005 Update: User's Manual Prepared under Task No. PVA7.6102 Technical Report NREL/TP-581-41364 April 2007 National Renewable Energy Laboratory 1617 Cole Boulevard, Golden, Colorado 80401-3393 303-275-3000 * www.nrel.gov Operated for the U.S. Department of Energy Office of Energy Efficiency and Renewable Energy by Midwest Research Institute * Battelle

237

Impact of the Diurnal Cycle of Solar Radiation on Intraseasonal SST Variability in the Western Equatorial Pacific  

Science Conference Proceedings (OSTI)

The mechanism by which the diurnal cycle of solar radiation modulates intraseasonal SST variability in the western Pacific warm pool is investigated using a one-dimensional mixed layer model. SSTs in the model experiments forced with hourly ...

Toshiaki Shinoda

2005-07-01T23:59:59.000Z

238

The Use of New Parameterizations for Gaseous Absorption in the CLIRAD-SW Solar Radiation Code for Models  

Science Conference Proceedings (OSTI)

The new gaseous absorption parameterizations are incorporated in the CLIRAD-SW solar radiation code for models, openly distributed for the scientific community. In the new parameterizations, the magnitude of absorption coefficients in each ...

T. A. Tarasova; B. A. Fomin

2007-06-01T23:59:59.000Z

239

Implementing the Delta-Four-Stream Approximation for Solar Radiation Computations in an Atmosphere General Circulation Model  

Science Conference Proceedings (OSTI)

Proper quantification of the solar radiation budget and its transfer within the atmosphere is of utmost importance in climate modeling. The delta-four-stream (DFS) approximation has been demonstrated to offer a more accurate computational method ...

Tarek Ayash; Sunling Gong; Charles Q. Jia

2008-07-01T23:59:59.000Z

240

Effects of a Spectral Surface Reflectance on Measurements of Backscattered Solar Radiation: Application to the MOPITT Methane Retrieval  

Science Conference Proceedings (OSTI)

The amount of solar radiation emerging from the top of the atmosphere is strongly influenced by the reflectance of the underlying surface. For this reason, some information about the magnitude and the spectral variability of the surface ...

G. Pfister; J. C. Gille; D. Ziskin; G. Francis; D. P. Edwards; M. N. Deeter; E. Abbott

2005-05-01T23:59:59.000Z

Note: This page contains sample records for the topic "baseline 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

Estimations of Cloud Optical Thickness from Ground-Based Measurements of Incoming Solar Radiation in the Arctic  

Science Conference Proceedings (OSTI)

A technique for evaluation of cloud optical thickness (plant-parallel, homogeneous layer) from ground-based measurements of incoming solar irradiance using a simple radiation model is introduced. The sensitivities of downward and upward fluxes of ...

E. Leontyeva; K. Stamnes

1994-04-01T23:59:59.000Z

242

Spatial and Temporal Variations in Long-Term Normal Percent Possible Solar Radiation Levels in the United States  

Science Conference Proceedings (OSTI)

The purpose of this study was to analyze the time and space variations in long-term monthly-averaged daily percent possible solar radiation levels in the United States. Both principal components analysis and harmonic analysis were used to ...

Robert C. Balling Jr.; Randall S. Cerveny

1983-10-01T23:59:59.000Z

243

Determination of the Optical Thickness and Effective Particle Radius of Clouds from Reflected Solar Radiation Measurements. Part I: Theory  

Science Conference Proceedings (OSTI)

A method is presented for determining the optical thickness and effective particle radius of stratiform cloud layers from reflected solar radiation measurements. A detailed study is presented which shows that the cloud optical thickness (?c) and ...

Teruyuki Nakajima; Michael D. King

1990-08-01T23:59:59.000Z

244

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

DOE Green Energy (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

245

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 simulation. These uses require knowing the amount of solar radiation irradiating variously oriented walls and tilted roofs, which can be calculated from beam and diffuse radiation measured on a horizontal surface. It is possible to obtain such data using a multipyranometer array (MPA). However, the MPA is not as accurate as some other sensors and suffers from poor data reliability. This work improves the accuracy of the MPA and solves the problem of invalid data. Several schemes the removal of invalid data are tested. The location of the test equipment is changed to one with fewer obstructions. A Class A sensor is substituted for one of the photovoltaic sensors. Corrections are applied to the photovoltaic sensors. The need for changing sensor alignment is tested. As a result, accuracy has been significantly improved over previous work.

Klima, Peter Miloslaw

2000-01-01T23:59:59.000Z

246

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

Science Conference Proceedings (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

247

Solar Magnetic Field Solar Thermonuclear Energy Generation Solar Evolution Presolar Evolution Stages  

E-Print Network (OSTI)

core radiative zone convective envelope photosphere chromosphere corona Solar Activity granules spicules sunspots prominences solar flares

unknown authors

1995-01-01T23:59:59.000Z

248

Micro/Nano-Scale Phase Change Systems for Thermal Management and Solar Energy Conversion Applications  

E-Print Network (OSTI)

solar radiation. .3] The diurnal nature of solar radiation and dependence onright) when exposed to solar radiation. There are several

Coso, Dusan

2013-01-01T23:59:59.000Z

249

A 10-year climatology of solar radiation for the Great Barrier Reef: implications for recent mass coral bleaching events  

Science Conference Proceedings (OSTI)

A 10-year solar radiation climatology is developed for the Great Barrier Reef region using data from the Geostationary Meteorological Satellite (GMS). The method uses a look-up table based on the STREAMER radiative transfer model for a tropical atmosphere. ...

Itsara Masiri; Manuel Nunez; Evan Weller

2008-08-01T23:59:59.000Z

250

Evaluation of CLM4 Solar Radiation Partitioning Scheme Using Remote Sensing and Site Level FPAR Datasets  

E-Print Network (OSTI)

Abstract: This paper examines a land surface solar radiation partitioning scheme, i.e., that of the Community Land Model version 4 (CLM4) with coupled carbon and nitrogen cycles. Taking advantage of a unique 30-year fraction of absorbed photosynthetically active radiation (FPAR) dataset, derived from the Global Inventory Modeling and Mapping Studies (GIMMS) normalized difference vegetation index (NDVI) data set, multiple other remote sensing datasets, and site level observations, we evaluated the CLM4 FPAR’s seasonal cycle, diurnal cycle, long-term trends, and spatial patterns. Our findings show that the model generally agrees with observations in the seasonal cycle, long-term trends, and spatial patterns, but does not reproduce the diurnal cycle. Discrepancies also exist in seasonality magnitudes, peak value months, and spatial heterogeneity. We identify the discrepancy in the diurnal cycle as, due to, the absence of dependence on sun angle in the model. Implementation of sun angle dependence in a one-dimensional (1-D) model is proposed. The need for better relating of vegetation to climate in the model, indicated by long-term trends, is also noted. Evaluation of the CLM4 land surface solar radiation partitioning scheme using remote sensing and site level FPAR datasets provides targets for

Kai Wang; Jiafu Mao; Robert E. Dickinson; Xiaoying Shi; Wilfred M. Post; Zaichun Zhu; Ranga B. Myneni

2013-01-01T23:59:59.000Z

251

Solar  

Energy.gov (U.S. Department of Energy (DOE))

The U.S. Department of Energy (DOE) leads a large network of researchers and other partners to deliver innovative solar photovoltaic and concentrating solar power technologies that will make solar...

252

SOLAR ENERGY FOR ACADEMIC INSTITUTIONS Solar Suitability Assessment  

E-Print Network (OSTI)

SOLAR ENERGY FOR ACADEMIC INSTITUTIONS Solar Suitability Assessment of Dalhousie University..................................................................................................................... 1 2 Solar Resource Assessment ........................................................................................... 2 2.1 Solar Radiation

Brownstone, Rob

253

Solar Energy Resources  

Energy.gov (U.S. Department of Energy (DOE))

Solar radiation, often called the solar resource, is a general term for the electromagnetic radiation emitted by the sun. Solar radiation can be captured and turned into useful forms of energy,...

254

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

E-Print Network (OSTI)

and Variability of Solar Heavy Ions at High Energieset al. “A Synthesis of Solar Cycle Prediction Techniques. ”of Electrons and Ions in Solar Flares”. Astrophysical

Gorguinpour, Camron Saul

2010-01-01T23:59:59.000Z

255

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

256

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

257

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

258

MEASUREMENT AND ANALYSIS OF CIRCUMSOLAR RADIATION  

E-Print Network (OSTI)

Character of Solar and Circumsolar Radiation. Proceedings ~all of the direct solar radiation (that originating from thethat attenuate the solar radiation available to terres-

Grether, Donald

2013-01-01T23:59:59.000Z

259

MEASUREMENT AND ANALYSIS OF CIRCUMSOLAR RADIATION  

E-Print Network (OSTI)

all of the direct solar radiation (that originating from thea suitable site for solar radiation measurements. A requestused to estimate the solar radiation per unit wavelength at

Grether, D.F.

2013-01-01T23:59:59.000Z

260

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.

Note: This page contains sample records for the topic "baseline 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

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

262

The long term dynamics of the solar radiative zone associated to new results from SoHO and young solar analogs  

E-Print Network (OSTI)

The Standard Solar Model (SSM) is no more sufficient to interpret all the observations of the radiative zone obtained with the SoHO satellite. We recall our present knowledge of this internal region and compare the recent results to models beyond the SSM assumptions. Then we discuss the missing processes and quantify some of them in using young analog observations to build a more realistic view of our star. This progress will be useful for solar-like stars observed by COROT and KEPLER.

Sylvaine Turck-Chieze; Sebastien Couvidat; Antonio Eff-Darwich; Vincent Duez; Rafael A. Garcia; Stephane Mathis; Savita Mathur; Laurent Piau; David Salabert

2011-09-19T23:59:59.000Z

263

Intra-hour Direct Normal Irradiance solar forecasting using genetic programming  

E-Print Network (OSTI)

E. Ruano, “Prediction of the solar radiation evolution usingComputation of beam solar radiation at normal incidencein estimating global solar radiationSolar Energy, vol.

Queener, Benjamin Daniel

2012-01-01T23:59:59.000Z

264

Aerosol Optical Properties in the Iranian Region Obtained by Ground-Based Solar Radiation Measurements in the Summer Of 1991  

Science Conference Proceedings (OSTI)

Solar radiation measurements were made using sun photometers and pyranometers during 31 May-7 June 1991 at several places in Iran and during 12 June-17 September 1991 at a fixed place, Bushehr, Iran. In the first period the aerosol optical ...

Teruyuki Nakajima; Tadahiro Hayasaka; Akiko Higurashi; Gen Hashida; Naser Moharram-Nejad; Yahya Najafi; Hamzeh Valavi

1996-08-01T23:59:59.000Z

265

Parameterizations for the Absorption of Solar Radiation by O2 and CO2 with Application to Climate Studies  

Science Conference Proceedings (OSTI)

Simple and accurate parameterizations have been developed for computing the absorption of solar radiation due to O2 and CO2. The parameterizations are based on the findings that temperature has a minimal effect on the absorption and that the one-...

Ming-Dah Chou

1990-02-01T23:59:59.000Z

266

User`s manual for TMY2s: Derived from the 1961--1990 National Solar Radiation Data Base  

DOE Green Energy (OSTI)

This report is a user`s manual that describes typical meteorological year (TMY) data sets derived from the 1961-1990 National Solar Radiation Data Base. The TMY is a data set of hourly values of solar radiation and meteorological elements for a 1-year period. The intended use if for computer simulations of solar energy conversion systems and building systems. Section 1 of the manual provides general information about the TMYs; Section 2 lists the stations and provides station identifying information and classification; Section 3 details the contents of the TMY2 files and provides the hourly records of data values; Section 4 compares TMY2 with 30-year data sets; Appendices provide procedures used to develop TMYs and a table to convert SI data to other units.

Marion, W.; Urban, K.

1995-06-01T23:59:59.000Z

267

Solar Radiation and Tidal Exposure as Environmental Drivers of Enhalus acoroides Dominated Seagrass  

E-Print Network (OSTI)

There is strong evidence of a global long-term decline in seagrass meadows that is widely attributed to anthropogenic activity. Yet in many regions, attributing these changes to actual activities is difficult, as there exists limited understanding of the natural processes that can influence these valuable ecosystem service providers. Being able to separate natural from anthropogenic causes of seagrass change is important for developing strategies that effectively mitigate and manage anthropogenic impacts on seagrass, and promote coastal ecosystems resilient to future environmental change. The present study investigated the influence of environmental and climate related factors on seagrass biomass in a large solar radiation. This study documents how natural long-term tidal variability can influence long-term seagrass dynamics. Exposure to desiccation, high UV, and daytime temperature regimes are discussed as the likely mechanisms for the action of these factors in causing this decline. The results emphasise the importance of understanding and assessing natural environmentally-driven change when

Richard K. F. Unsworth; Michael A. Rasheed; Kathryn M. Chartr; Anthony J. Roelofs

2012-01-01T23:59:59.000Z

268

Transportation Baseline Report  

Science Conference Proceedings (OSTI)

The National Transportation Program 1999 Transportation Baseline Report presents data that form a baseline to enable analysis and planning for future Department of Energy (DOE) Environmental Management (EM) waste and materials transportation. In addition, this Report provides a summary overview of DOE’s projected quantities of waste and materials for transportation. Data presented in this report were gathered as a part of the IPABS Spring 1999 update of the EM Corporate Database and are current as of July 30, 1999. These data were input and compiled using the Analysis and Visualization System (AVS) which is used to update all stream-level components of the EM Corporate Database, as well as TSD System and programmatic risk (disposition barrier) information. Project (PBS) and site-level IPABS data are being collected through the Interim Data Management System (IDMS). The data are presented in appendices to this report.

Fawcett, Ricky Lee; Kramer, George Leroy Jr.

1999-12-01T23:59:59.000Z

269

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

E-Print Network (OSTI)

data to MGS ER data. Sun Earth Mars Solar Event Begins within the literature. Sun Earth Mars Solar Event Begins with X-versus the solar cycle and the Earth-Sun-Mars (ESM) angle.

Gorguinpour, Camron Saul

2010-01-01T23:59:59.000Z

270

Thermodynamics, Entropy, Information and the Efficiency of Solar Cells  

E-Print Network (OSTI)

Steinborn, Exergy of solar radiation: information approach.detailed in Chapter II. Solar radiation is split into athe spectrum of the solar radiation. The first is the data-

Abrams, Zeev R.

2012-01-01T23:59:59.000Z

271

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

272

Solar Adoption and Energy Consumption in the Residential Sector  

E-Print Network (OSTI)

meteorological year (TMY) solar radiation data. The goaleither TMY or actual solar radiation data, and thus servesmodeling (using actual solar radiation data, though this

McAllister, Joseph Andrew

2012-01-01T23:59:59.000Z

273

Toward the Development of Multi-Year Total and Special Solar Radiation Budgets at the Three ARM Locales  

NLE Websites -- All DOE Office Websites (Extended Search)

the Development of Multi-Year Total and Special the Development of Multi-Year Total and Special Solar Radiation Budgets at the Three ARM Locales Z. Li and M. C. Cribb Earth System Science Interdisciplinary Center University of Maryland College Park, Maryland A. P. Trishchenko Canada Centre for Remote Sensing Ottawa, Ontario, Canada Introduction Over the past decade, an unprecedented amount of high-quality observational data pertaining to atmospheric and surface parameters has been collected at Atmospheric Radiation Measurement (ARM) locales around the globe. These data have been critical in the development and validation of models used to study the complex interaction of cloud, aerosols, and the surface on the solar radiative budget (SRB), the primary force driving atmospheric circulation. As the next step forward, the challenge of

274

The Effect of Gas Absorption on the Scattered Radiation in the Solar Almucantar: Results of Numerical Simulation  

NLE Websites -- All DOE Office Websites (Extended Search)

Gas Absorption on the Gas Absorption on the Scattered Radiation in the Solar Almucantar: Results of Numerical Simulation T. Yu. Chesnokova, K. M. Firsov, I. M. Nasrtdinov, S. M. Sakerin, V. V. Veretennikov, and T. B. Zhuravleva Institute of Atmospheric Optics Tomsk, Russia Introduction The methods for reconstruction of the aerosol optical characteristics (e.g., aerosol size distribution, and single-scattering albedo) from diffuse and direct radiation measured in the solar almucantar has been widely used during the last decade. The photometers with filters in the "atmospheric transparency windows" in the wavelength range 0.4 to 1 m were applied for measurements. Usually it was assumed that one could neglect the molecular absorption of the measured diffuse radiation. Further development

275

Solar Energy Science Projects  

NLE Websites -- All DOE Office Websites (Extended Search)

Energy Science Projects Curriculum: Solar Power -(thermodynamics, lightelectromagnetic, radiation, energy transformation, conductionconvection, seasons, trigonometry) Grade...

276

Thermal Management of Solar Cells  

E-Print Network (OSTI)

of the valence band. Solar radiation enters the p-n junctiona fraction of absorbed solar radiation energy is turned intoenclosure, the radiation energy from the solar cell light

Saadah, Mohammed Ahmed

2013-01-01T23:59:59.000Z

277

More Frequent Cloud-Free Sky and Less Surface Solar Radiation in China from 1955 to 2000  

SciTech Connect

Newly available data from extended weather stations and time period reveal that much of China has experienced statistically significant decreases in total cloud cover and low cloud cover over roughly the last half of the Twentieth century. This conclusion is supported by our recent analysis of the more reliably observed frequency of cloud-free sky and overcast sky. The total cloud cover and low cloud cover have decreased 0.88% and 0.33% per decade, respectively, and cloud-free days have increased 0.60% and overcast days decreased 0.78% per decade in China from 1954-2001. Meanwhile, both solar radiation and pan evaporation have decreased in most parts of China, with solar radiation decreasing 3.1 W/m2 and pan evaporation decreasing 39 mm per decade. Combined with other evidences documented in previous studies, we conjectured that increased air pollution may have produced a fog-like haze that reflected/absorbed radiation from the sun and resulted in less solar radiation reaching the surface, despite concurrent upward trends in cloud-free skies over China.

Qian, Yun; Kaiser, Dale P.; Leung, Lai R.; Xu, Ming

2006-01-11T23:59:59.000Z

278

Solar Energy Resources | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Solar Energy Resources Solar Energy Resources August 21, 2013 - 11:40am Addthis Solar radiation, often called the solar resource, is a general term for the electromagnetic...

279

CALIFORNIA SOLAR DATA MANUAL  

E-Print Network (OSTI)

Radiation in Canada. Solar Energy ~, p.153. Threlkeld, J.L.pool. As the use of solar energy becomes more widespread,a high potential for solar energy use. Solar-heated swimming

Berdahl, P.

2010-01-01T23:59:59.000Z

280

Predicted daily and yearly average radiative performance of hyperbolic spiral solar concentrators  

SciTech Connect

Some possible applications of solar energy, such as absorption cooling and air conditioning, process heating and preheating unconventional power production systems, require heat at temperatures higher than those associated with flat plate collectors, but below those associated with focussing collectors. Such a level of collection temperatures is economically obtained using non-imaging solar collectors. They are non-focussing, moderate concentrating ratio and trough-like collectors, which are usually arranged east-west, facing south or north. One of these concentrators is the hyperbolic spiral collector, which may be a semi- or compound one. It has been shown that the optical characteristics of semi- and compound hyperbolic spiral concentrators (SHSC and CHSC) are better than those of the compound parabolic one. In this work, the instantaneous radiative performance of both semi- and compound hyperbolic spiral concentrators are extended to average daily and yearly performance. Concentrators of various angles of acceptance are used in the analysis. Its effect upon the daily and yearly performance of the concentrator is discussed. The performance is also studied for various tilt adjustment routines. The results show that the number of tilt adjustments per year is an important factor affecting the daily and yearly performance of both SHSC and CHSC. It has been found that the SHSC is more affected by tilt adjustments than the compound one. The results also indicate that concentrators of small angle of acceptance are much affected by the number of adjustments. The results also show that there is not much difference between weekly and monthly adjustments.

Rabie, L.H.

1983-12-01T23:59:59.000Z

Note: This page contains sample records for the topic "baseline 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

Re-baselining Report  

NLE Websites -- All DOE Office Websites (Extended Search)

008 008 DOE/NETL-2008/1308 Re-baselining APS, CS & FC GRPA R&D Goals Impact of Cost Escalation on Power System R&D Goals Disclaimer This report was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference therein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or

282

Photovoltaic Advanced Research and Development project: Solar radiation research annual report, 1 October 1990--30 September 1991  

DOE Green Energy (OSTI)

This report is a summary of the year 1991 research activities and results under the Solar Radiation Research task of the Photovoltaic (PV) Advanced Research and Development project at the National Renewable Energy Laboratory (NREL). This task directly supports the characterization, testing, and design of PV cells modules, and systems. The development of a scientific and engineering understanding of incident (i.e., available to PV devices) solar irradiance and the appropriate instrumentation systems and measurement methods are the activities and results of this project. Activities described in this report include the completion of the Atmospheric Optical Calibration Systems (AOCS) and the comparison of instrumentation systems that collect site-specific measurements of solar irradiance for the purpose of PV system feasibility studies and/or design.

Hulstrom, R.; Cannon, T.; Stoffel, T.; Riordan, C.

1992-10-01T23:59:59.000Z

283

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

E-Print Network (OSTI)

This paper describes the development of simplified procedures for a multipyranometer array (MPA) for the continuous measurement of direct and diffuse solar radiation. The MPA described in this paper is an improvement over previously published MPA studies due several new features, including: the incorporation of an artificial horizon that prevents reflected ground radiation from striking the tilted sensors, and a routine that corrects the spectral response of photovoltaic-type sensors used in the MPA. An optimal solution procedure has also been developed that eliminates invalid data which are inherent in the simultaneous solution of the solar equations from the four MPA sensors. In this paper a description of the NIST-traceable calibration facility is provided and results are presented that compare the improved MPA-predicted beam to side-by-side measurements from a precision Normal Incidence Pyrheliometer (NIP).

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

2000-01-01T23:59:59.000Z

284

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

Science Conference Proceedings (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

285

Stratospheric Temperature and Radiative Forcing Response to 11-Year Solar Cycle Changes in Irradiance and Ozone  

Science Conference Proceedings (OSTI)

The 11-yr solar cycle temperature response to spectrally resolved solar irradiance changes and associated ozone changes is calculated using a fixed dynamical heating (FDH) model. Imposed ozone changes are from satellite observations, in contrast ...

L. J. Gray; S. T. Rumbold; K. P. Shine

2009-08-01T23:59:59.000Z

286

A Simple All Weather Model to Estimate Ultraviolet Solar Radiation (290–385 nm)  

Science Conference Proceedings (OSTI)

A new expression to estimate the solar ultraviolet irradiance from parameters usually available in radiometric networks is presented. The authors have analyzed the relation between solar ultraviolet global irradiance (290–385 nm), UV, and ...

I. Foyo-Moreno; J. Vida; L. Alados-Arboledas

1999-07-01T23:59:59.000Z

287

Surface Net Solar Radiation Estimated from Satellite Measurements: Comparisons with Tower Observations  

Science Conference Proceedings (OSTI)

A parameterization that relates the reflected solar flux at the top of the atmosphere to the net solar flux at the surface in terms of only the column water vapor amount and the solar zenith angle was tested against surface observations. Net ...

Zhanqing Li; H. O. Leighton; Robert D. Cess

1993-09-01T23:59:59.000Z

288

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

DOE Data Explorer (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.

289

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

Science Conference Proceedings (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.

2007-05-02T23:59:59.000Z

290

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

291

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)

Photovoltaic Solar Energy Conference, Milano, Italy 3-7.9.2007 (preprint). UNCERTAINTIES IN PHOTOVOLTAIC European Photovoltaic Solar Energy Conference, Milan : Italy (2007)" #12;Súri M., Huld T., Dunlop E fluctuation of solar radiation. Proceedings of the 22nd European Photovoltaic Solar Energy Conference, Milano

Paris-Sud XI, Université de

292

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

293

Study of the temporal and spatial variation of climate and solar radiation in th metropolitan Phoenix area. Final technical progress report, July 1, 1977-June 30, 1978  

DOE Green Energy (OSTI)

The research performed was designed to identify spatial or temporal variation of any atmospheric parameters that might affect the operation of devices utilizing solar energy in the metropolitan Phoenix area. The first part of the research involved the analysis of all available solar and climatic data to determine their validity and comparability. For the standard climatic parameters, few difficulties were encountered, but the task of determining comparability of solar radiation data involved many pitfalls. It was concluded that most of the solar data acquired before January 1977 could not be used for purposes of identifying spatial variability. And, a year and a half of data does not represent a long enough period of time upon which to base sound conclusions about spatial and temporal variability of solar radiation in the metropolitan Phoenix region. The data currently available to us do not indicate any great variation of solar radiation in the metropolitan Phoenix area. However, any meaningful statements about spatial and temporal variability of solar radiation in the metropolitan Phoenix area must await the acquisition of additional data from well-calibrated equipment.

Durrenberger, R.W.

1978-09-29T23:59:59.000Z

294

Users manual for SERI QC software assessing the quality of solar radiation data  

DOE Green Energy (OSTI)

This manual describes the procedures and software for assessing the quality of solar radiation data. This does not constitute quality control because quality control must take place during the preparations for data collection (selection, calibration, and installation of instruments), during the measurement process, and during the transmission (if any) and recording of the numerical values. Once the data are recorded, only quality assessment can be performed. If quality assessment is performed in real time or soon after the measurement process is completed, it can provide input to control the quality of future measurements. Furthermore, quality assessment can be used for quality control if data judged to be bad are deleted and/or modified. We do not subscribe to these actions because the deletion or modification of data destroys information that might be useful to the user. For example, if an instrument has gone through a gradual failure and all of the data that fail quality assessment criteria are deleted or modified, the user of the data may not be able to detect what was happening and will not question the accuracy of other data collected before the instrument completely failed. Therefore, the SERI QC procedures and software do not delete or modify data. Instead, flags are set to inform the user of any departure of the data from expected values. These flags indicate the magnitude and direction of such departures. For the flags to communicate as much information as possible, this manual attempts to identify and explain the probable causes of various flags. However, we cannot overemphasize the following: Flags only indicate that data do or do not fall within expected ranges. This does not mean that the data that the data are or are not valid.

none,

1993-12-01T23:59:59.000Z

295

Forecasting of preprocessed daily solar radiation time series using neural networks  

SciTech Connect

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

296

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

DOE Data Explorer (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.

297

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

DOE Data Explorer (OSTI)

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/.

298

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

SciTech Connect

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

2011-09-01T23:59:59.000Z

299

DETAILED LOOP MODEL (DLM) ANALYSIS OF LIQUID SOLAR THERMOSIPHONS WITH HEAT EXCHANGERS  

E-Print Network (OSTI)

During periods of low solar radiation, reversed convectionapproximations for the solar radiation on the absorber coverare used for the solar radiation on the absorber cover

Mertol, A.

2013-01-01T23:59:59.000Z

300

The role of Förster Resonance Energy Transfer in luminescent solar concentrator efficiency and color tunability  

E-Print Network (OSTI)

greenhouse collector for solar radiation," Applied OpticsOn the conversion of solar radiation with fluorescent planarmaterial which absorbs solar radiation and isotropically

Balaban, Benjamin

2013-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "baseline 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

Impact of Solar Heat Gain on Radiant Floor Cooling System Design  

E-Print Network (OSTI)

Y. Chen, The effect of solar radiation on dynamic thermaldependant upon solar radiation, ASHRAE Transactions, (2006)M. Filippi, B.W. Olesen, Solar radiation and cooling load

Feng, Jingjuan Dove; Schiavon, Stefano; Bauman, Fred

2013-01-01T23:59:59.000Z

302

Solar Kit Lessons  

NLE Websites -- All DOE Office Websites (Extended Search)

Solar Kit Lessons Middle School Curriculum Created by Northeast Sustainable Energy Association (NESEA) Click on the links below to take you to the Chapter heading: Solar Cell Inquiry Sunshine Timer Parts of a Solar Panel Part 1 Parts of a Solar Panel Part 2 Build a Simple Ammeter Solar-Powered Battery Charger Positioning Solar Panels 1 Positioning Solar Panels 2 Properties of Solar Radiation: Reflection, Transmission, and Absorption Properties of Solar Radiation: Direct and Diffuse Light Power Maximum: An Electrical Determination Calibration Curve for a Radiation Meter Solarize a Toy Solar Cells as Control Devices Solar-Powered Electrolysis of Water and the Hydrogen Economy Solar Kit Lesson #1 Solar Cell Inquiry TEACHER INFORMATION LEARNING OUTCOME

303

Validation in an Arid Area of an Algorithm for the Estimation of Daily Solar Radiation  

Science Conference Proceedings (OSTI)

The Thornton–Running algorithm to estimate daily global radiation was tested at a site in a coastal desert of the eastern Mediterranean. In this algorithm three factors are multiplied in order to compute the daily global radiation: the total ...

P. R. Berliner; K. Droppelmann

2003-04-01T23:59:59.000Z

304

Observational and Theoretical Studies of Solar Radiation in Arctic Stratus Clouds  

Science Conference Proceedings (OSTI)

A series of clouds-radiation experiments was carried out in June 1980 in Arctic stratus clouds occurring over the Beaufort Sea using the NCAR Electra aircraft. This paper is an analysis of the hemispheric radiation fields obtained with Eppley ...

G. F. Herman; J. A. Curry

1984-01-01T23:59:59.000Z

305

Observations and Modeling of Downward Radiative Fluxes (Solar and Infrared) in Urban/Rural Areas  

Science Conference Proceedings (OSTI)

Pollutants (gaseous and aerosol) contained in urban atmospheres alter radiative fluxes at the surface.Numerous radiative models have been developed, and while few experimental data are available, results areoften contradictory. We have taken ...

Claude Estournel; Raoul Vehil; Daniel Guedalia; Jacques Fontan; Aimé Druilhet

1983-01-01T23:59:59.000Z

306

Utilization of solar radiation by polar animals: an optical model for pelts  

SciTech Connect

A summary of existing passive solar-heat conversion panels provides the basis for a definition of an ideal passive solar-heat converter. Evidence for the existence of a biological greenhouse effect in certain homopolar homeothermic species is reviewed. The thermal and optical properties of homeothermic pelts, in particular those of the polar bear, are described, and a qualitative optical model of the polar bear pelt is proposed. The effectiveness of polar bear and seal pelts as solar-heat converters is discussed, and comparison is made with the ideal converter.

Grojean, R.E.; Sousa, J.A.; Henry, M.C.

1980-02-01T23:59:59.000Z

307

EIA Energy Kids - Solar  

U.S. Energy Information Administration (EIA)

Solar Basics Energy from the Sun. The sun has produced energy for billions of years. Solar energy is the sun’s rays (solar radiation) that reach the Earth.

308

Solar selective coatings  

DOE Green Energy (OSTI)

The definition, fabrication, and specification of solar selective absorber surfaces are discussed. Also, the nature of solar radiation and thermal radiation in relation to selective surfaces is considered. (WHK)

Mattox, D. M.

1977-01-01T23:59:59.000Z

309

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  

Science Conference Proceedings (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

310

Energy Basics: Solar Water Heaters  

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

solar storage in one tank. Types of Solar Collectors Solar collectors gather the sun's energy, transform its radiation into heat, and then transfer that heat to water or solar...

311

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

E-Print Network (OSTI)

solar cycle. (http://solarscience.msfc.nasa.gov/images/ssn_www.igpp.ucla.edu/ http://solarscience.msfc.nasa.gov/images/contents.html http://solarscience.msfc.nasa.gov/images/ssn_

Gorguinpour, Camron Saul

2010-01-01T23:59:59.000Z

312

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

Science Conference Proceedings (OSTI)

The effects of solar heating and infrared cooling on the vapor depositional growth of cloud drops, and hence the potential for collection enhancement, is investigated. Large eddy simulation (LES) of marine stratocumulus is used to generate 600 ...

Christopher M. Hartman; Jerry Y. Harrington

2005-07-01T23:59:59.000Z

313

Local-Scale Variability of Solar Radiation in a Mountainous Region  

Science Conference Proceedings (OSTI)

Simultaneous measurements of horizontal global solar irradiance and other meteorological parameters have been taken over three years at a dense radiometric network. The network is located on a mountainous region in southeastern Spain (37°N, 3°W) ...

J. Tovar; F. J. Olmo; L. Alados-Arboledas

1995-10-01T23:59:59.000Z

314

Accounting for the Solar Radiation Influence on Downward Longwave Irradiance Measurements by Pyrgeometers  

Science Conference Proceedings (OSTI)

Measurements of broadband downward longwave (LW) irradiance are carried out at Lampedusa, Italy, in the Mediterranean, jointly with solar irradiance, since 2004 using shaded and unshaded Eppley Precision Infrared Radiometers (PIRs) and Kipp & ...

Daniela Meloni; Claudia Di Biagio; Alcide di Sarra; Francesco Monteleone; Giandomenico Pace; Damiano Massimiliano Sferlazzo

2012-11-01T23:59:59.000Z

315

Recent Interannual Variations in Solar Radiation, Cloudiness, and Surface Temperature at the South Pole  

Science Conference Proceedings (OSTI)

Incoming global solar irradiance measured at the surface at the South Pole unexpectedly decreased steadily by 15% from 1976 through 1987 during the late austral summer season, whereas no trend is apparent for September through December. February'...

Ellsworth G. Dutton; Robert S. Stone; Donald W. Nelson; Bernard G. Mendonca

1991-08-01T23:59:59.000Z

316

A Method for Sky-Condition Classification from Ground-Based Solar Radiation Measurements  

Science Conference Proceedings (OSTI)

Identification of clouds from satellite images is now a routine task. Observation of clouds from the ground, however, is still needed to acquire a complete description of cloud conditions. Among the standard meteorological variables, solar ...

Josep Calbó; Josep-Abel González; David Pagès

2001-12-01T23:59:59.000Z

317

Broadband Extinction Method to Determine Aerosol Optical Depth from Accumulated Direct Solar Radiation  

Science Conference Proceedings (OSTI)

There are two important problems in the aerosol optical depth (AOD) retrievals from hourly/daily/monthly accumulated pyrheliometer data, that is, how to select a suitable cosine of the solar zenith angle (?0) and how to eliminate or minimize ...

Jinhuan Qiu

2003-11-01T23:59:59.000Z

318

Effects of Solar Radiation on the Performance of Pyrgeometers with Silicon Domes  

Science Conference Proceedings (OSTI)

The performance of the Eppley pyrgeometer with a silicon dome presents several anomalies during daytime measurements. These problems are related mainly to the solar heating of the dome, which causes nearly instantaneous fluctuations, about ±1%–2% ...

L. Alados-Arboledas; J. Vida; J. I. Jiménez

1988-10-01T23:59:59.000Z

319

324 Building Baseline Radiological Characterization  

SciTech Connect

This report documents the analysis of radiological data collected as part of the characterization study performed in 1998. The study was performed to create a baseline of the radiological conditions in the 324 Building.

R.J. Reeder, J.C. Cooper

2010-06-24T23:59:59.000Z

320

ARM - Baseline Change Request Guidelines  

NLE Websites -- All DOE Office Websites (Extended Search)

DocumentsBaseline Change Request Guidelines DocumentsBaseline Change Request Guidelines Page Contents Introduction Submit a BCR BCR Process Flowchart Baseline Change Request Guidelines Introduction Baseline Change Requests (BCR) are used by the ARM Infrastructure as a process to provide configuration control and for formally requesting and documenting changes within the ARM Infrastructure. Configuration Control: BCRs are required for changes to instruments, data systems, data processes, datastreams, measurement methods, and facilities. They help ensure that all aspects of the ARM Infrastructure are consulted prior to implementing changes. Seemingly minor changes can have significant repercussions throughout the Facility and therefore, NO change to an operational instrument, computer, facility, or other system can or will be

Note: This page contains sample records for the topic "baseline 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

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

Science Conference Proceedings (OSTI)

We evaluated 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. One minute averages of 3-second data for 12 months from the test instrument measurements were compared with the computed reference data set. Combined uncertainty in the computed reference irradiance is 1.8% {+-} 0.5%. Total uncertainty in the pyranometer comparisons is {+-}2.5%. We show mean percent difference between reference global irradiance and test pyranometer 1 minute data as a function of zenith angle, and percent differences between daily totals for the reference and test irradiances as a function of day number. We offer no explicit conclusion about the performance of instrument models, as a general array of applications with a wide range of instrumentation and accuracy requirements could be addressed with any of the radiometers.

Myers, D.; Wilcox, S. M.

2009-01-01T23:59:59.000Z

322

Models for Solar Abundance Stars with Gravitational Settling and Radiative Accelerations: Application to M67 and NGC188  

E-Print Network (OSTI)

Evolutionary models taking into account radiative accelerations, thermal diffusion, and gravitational settling for 28 elements, including all those contributing to OPAL stellar opacities, have been calculated for solar metallicity stars of 0.5 to 1.4 solar masses. The Sun has been used to calibrate the models. Isochrones are fitted to the observed color-magnitude diagrams (CMDs) of M67 and NGC188, and ages of 3.7 and 6.4 Gyr are respectively determined. Convective core overshooting is not required to match the turnoff morphology of either cluster, including the luminosity of the gap in M67, because central convective cores are larger when diffusive processes are treated. This is due mainly to the enhanced helium and metal abundances in the central regions of such models. The observation of solar metallicity open clusters with ages in the range 4.8--5.7Gyr would further test the calculations of atomic diffusion in central stellar regions: according to non-diffusive isochrones, clusters should not have gaps nea...

Michaud, G; Richer, J; Van den Berg, D A; Berg, Don A. Vanden

2004-01-01T23:59:59.000Z

323

Fabrication and Characterization of Organic Solar Cells  

E-Print Network (OSTI)

8? Würfel P.  Physics of solar cells : from principles to Photocell for Converting  Solar Radiation into Electrical generation  photovoltaics:  solar  cells  for  2020  and 

Yengel, Emre

2010-01-01T23:59:59.000Z

324

Calculation of the Solar Load onto Occupants in a Room using Bidirectional Scattering Distribution Functions and a View Factor Approach  

E-Print Network (OSTI)

and a given solar radiation…………………………………………………..52 Table 3direct and diffuse solar radiation for a design day, useddirect and diffuse solar radiation for a design day, used

Jedek, Christoph

2012-01-01T23:59:59.000Z

325

Deconvolution of Wide-Field-of-View Measurements of Reflected Solar Radiation  

Science Conference Proceedings (OSTI)

Wide-field-of-view (WFOV) radiometers have been flown as part of the Earth Radiation Budget instrument on the Nimbus 6 and 7 spacecraft and as part of the Earth Radiation Budget Experiment (ERBE) instruments aboard the ERBE spacecraft and also ...

G. Louis Smith; David Rutan

1990-02-01T23:59:59.000Z

326

Characterization of vegetation properties: Canopy modeling of pinyon-juniper and ponderosa pine woodlands; Final report. Modeling topographic influences on solar radiation: A manual for the SOLARFLUX model  

SciTech Connect

This report is comprised of two studies. The first study focuses on plant canopies in pinyon-juniper woodland, ponderosa pine woodland, and waste sites at Los Alamos National Laboratory which involved five basic areas of research: (1) application of hemispherical photography and other gap fraction techniques to study solar radiation regimes and canopy architecture, coupled with application of time-domain reflectometry to study soil moisture; (2) detailed characterization of canopy architecture using stand mapping and allometry; (3) development of an integrated geographical information system (GIS) database for relating canopy architecture with ecological, hydrological, and system modeling approaches; (4) development of geometric models that simulate complex sky obstruction, incoming solar radiation for complex topographic surfaces, and the coupling of incoming solar radiation with energy and water balance, with simulations of incoming solar radiation for selected native vegetation and experimental waste cover design sites; and (5) evaluation of the strengths and limitations of the various field sampling techniques. The second study describes an approach to develop software that takes advantage of new generation computers to model insolation on complex topographic surfaces. SOLARFLUX is a GIS-based (ARC/INFO, GRID) computer program that models incoming solar radiation based on surface orientation (slope and aspect), solar angle (azimuth and zenith) as it shifts over time, shadows caused by topographic features, and atmospheric conditions. This manual serves as the comprehensive guide to SOLARFLUX. Included are discussions on modelling insolation on complex surfaces, the theoretical approach, program setup and operation, and a set of applications illustrating characteristics of topographic insolation modelling.

Rich, P.M.; Hetrick, W.A.; Saving, S.C.

1994-12-31T23:59:59.000Z

327

Solar radiation prediction based on recurrent neural networks trained by Levenberg-Marquardt backpropagation learning algorithm  

Science Conference Proceedings (OSTI)

In response to the growing concern over the use of fossil fuels, renewable energy industries have been significant economic drivers in many parts of the United States. In the recent years there is a strong growth in solar power generation industries ...

Nian Zhang; Pradeep K. Behera

2012-01-01T23:59:59.000Z

328

Spectral Measurements of Solar Ultraviolet-B Radiation in Southeast England  

Science Conference Proceedings (OSTI)

Spectral measurements of the ultraviolet region of the solar spectrum have been made at Reading, southeast England (51.5°N) since July 1989. The data presented here show the daily and annual variability of and within the ultraviolet-B wave band, ...

Ann R. Webb

1992-02-01T23:59:59.000Z

329

Calculation of Potential Broadband Biologically Active and Thermal Solar Radiation above Vegetation Canopies  

Science Conference Proceedings (OSTI)

A spectral model was assembled and used to compute the potential solar irradiance in five broad bands, that is, ultraviolet-B (280?320 nm in wavelength), ultraviolet-A (320?400 nm), photosynthetically active (400?700 nm), near infrared (700?1500 ...

Xiusheng Yang; David R. Miller

1995-04-01T23:59:59.000Z

330

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

E-Print Network (OSTI)

a function of solar input, ambient weather conditions, loadcollected on weather conditions, solar radiation, interior

Authors, Various

2010-01-01T23:59:59.000Z

331

The Absorption of Solar Radiation by Cloud Droplets: An Application of Anomalous Diffraction Theory  

Science Conference Proceedings (OSTI)

In this paper we demonstrate that the anomalous diffraction theory of van de Hulst with some modifications, provides a reasonable approximation of the volume extinction and absorption coefficients. We also show how the shortwave radiative ...

Steven A. Ackerman; Graeme L. Stephens

1987-06-01T23:59:59.000Z

332

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

Science Conference Proceedings (OSTI)

The impacts of improved atmospheric absorption on radiative fluxes, atmospheric circulation, and hydrological cycle for long-term GCM integrations are investigated. For these runs the operational version of the Centro de Previsão de Tempo e ...

H. M. J. Barbosa; T. A. Tarasova; I. F. A. Cavalcanti

2008-05-01T23:59:59.000Z

333

Simple Radiative Transfer Methods for Calculating Domain-Averaged Solar Fluxes in Inhomogeneous Clouds  

Science Conference Proceedings (OSTI)

The use of cloud fraction as a means of incorporating horizontal cloud inhomogeneity in radiative transfer calculations is widespread in the atmospheric science community. This study addresses some issues pertaining to the use of cloud fraction ...

P. M. Gabriel; K. F. Evans

1996-03-01T23:59:59.000Z

334

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

E-Print Network (OSTI)

... that would be like 13.68 one- hundred watt light bulbs illuminating a one-meter square surface, except that light bulbs put about 80% of their 100 watts of power into heat/infrared radiation. Given the distance

335

Four-Stream Spherical Harmonic Expansion Approximation for Solar Radiative Transfer  

Science Conference Proceedings (OSTI)

This paper presents a four-stream extension of the ?-Eddington approximation by considering the higher-order spherical harmonic expansion in radiative intensity. By using the orthogonality relation of the spherical harmonic functions, the ...

J. Li; V. Ramaswamy

1996-04-01T23:59:59.000Z

336

Effect of Spatial Organization on Solar Radiative Transfer in Three-Dimensional Idealized Stratocumulus Cloud Fields  

Science Conference Proceedings (OSTI)

To relate the error associated with 1D radiative calculations to the geometrical scales of cloud organization and/or in-cloud optical inhomogeneities, a new idealized methodology, based on a Fourier statistical technique, has been developed. ...

F. Di Giuseppe; A. M. Tompkins

2003-08-01T23:59:59.000Z

337

Absorption of Solar Radiation by Stratocumulus Clouds: Aircraft Measurements and Theoretical Calculations  

Science Conference Proceedings (OSTI)

Aircraft observations of shortwave radiative properties of stratocumulus clouds were carried out over the western North Pacific Ocean during January 1991. Two aircraft were equipped with a pair of pyranometers and near-infrared pyranometers. ...

Tadahiro Hayasaka; Nobuyuki Kikuchi; Masayuki Tanaka

1995-05-01T23:59:59.000Z

338

Solar Optics  

DOE Green Energy (OSTI)

Solar opacities are presented from the center of the Sun to the photosphere. The temperatures, densities and hydrogen mass fractions are taken from the standard solar model. For the heavy element abundances the Grevesse mixture is used. In the solar interior photoabsorption is dominated by free-free absorption and they compare two sets of opacities based on two different models for the inverse bremsstrahlung. The radiative luminosities calculated from the two sets of opacities are compared with those predicted by previous models of the standard solar model and also with the known luminosity of the Sun. pressures, specific heats and the speed of sound in the solar plasma are also presented.

Rozsnyai, B.F.

2000-10-04T23:59:59.000Z

339

Comparison of Mg-based multilayers for solar He II radiation at 30.4 nm wavelength  

Science Conference Proceedings (OSTI)

Mg-based multilayers, including SiC/Mg, Co/Mg, B4C/Mg, and Si/Mg, are investigated for solar imaging and a He II calibration lamp at a 30.4 nm wavelength. These multilayers were fabricated by a magnetron sputtering method and characterized by x-ray reflection. The reflectivities of these multilayers were measured by synchrotron radiation. Near-normal-incidence reflectivities of Co/Mg and SiC/Mg multilayer mirrors are as high as 40.3% and 44.6%, respectively, while those of B4C/Mg and Si/Mg mirrors are too low for application. The measured results suggest that SiC/Mg, Co/Mg multilayers are promising for a 30.4 nm wavelength.

Zhu Jingtao; Zhou Sika; Li Haochuan; Huang Qiushi; Wang Zhanshan; Le Guen, Karine; Hu, Min-Hui; Andre, Jean-Michel; Jonnard, Philippe

2010-07-10T23:59:59.000Z

340

Models for Solar Abundance Stars with Gravitational Settling and Radiative Accelerations: Application to M67 and NGC188  

E-Print Network (OSTI)

Evolutionary models taking into account radiative accelerations, thermal diffusion, and gravitational settling for 28 elements, including all those contributing to OPAL stellar opacities, have been calculated for solar metallicity stars of 0.5 to 1.4 solar masses. The Sun has been used to calibrate the models. Isochrones are fitted to the observed color-magnitude diagrams (CMDs) of M67 and NGC188, and ages of 3.7 and 6.4 Gyr are respectively determined. Convective core overshooting is not required to match the turnoff morphology of either cluster, including the luminosity of the gap in M67, because central convective cores are larger when diffusive processes are treated. This is due mainly to the enhanced helium and metal abundances in the central regions of such models. The observation of solar metallicity open clusters with ages in the range 4.8--5.7Gyr would further test the calculations of atomic diffusion in central stellar regions: according to non-diffusive isochrones, clusters should not have gaps near their main-sequence turnoffs if they are older than ~4.8Gyr, whereas diffusive isochrones predict that gaps should persist up to ages of ~5.7Gyr. Surface abundance isochrones are also calculated. In the case of M67 and NGC188, surface abundance variations are expected to be small. Abundance differences between stars of very similar Teff are expected close to the turnoff, especially for elements between P and Ca. Moreover, in comparison with the results obtained for giants, small generalized underabundances are expected in main-sequence stars. The lithium to beryllium ratio is discussed briefly and compared to observations.

G. Michaud; O. Richard; J. Richer; Don A. VandenBerg

2004-02-24T23:59:59.000Z

Note: This page contains sample records for the topic "baseline 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

Coincident bursts of auroral kilometric radiation and VLF emissions associated with a type III solar radio noise event  

SciTech Connect

This paper examines an isolated magnetospheric VLF/radio noise event that is highly suggestive of the triggering of terrestrial auroral kilometric radiation (AKR) by solar type III radio emission and of a close relation between AKR and broadband hiss. The solar type III burst was measured on polar HF riometers and was coincident with local dayside VLF/LF noise emission bursts at South Pole station. It was also coincident with AKR bursts detected on the AMPTE/IRM satellite, at the same magnetic local time as South Pole. On the basis of the close association of AKR and VLF bursts, and from geometrical considerations relating to wave propagnation, it is likely that the AKR source was on the dayside and on field lines near South Pole station. The general level of geomagnetic activity was very low. However, an isolated magnetic impulse event (MIE) accompanied by a riometer absorption pulse was in progress when all of the VLF/radio noise bursts occurred. The very close association of the type III burst at HF with the AKR is consistent with external stimulation of the AKR, if a different, more immediate, triggering process than that implied by Calvert is invoked. It is suggested here that some of the HF solar radiant energy may decay into waves with frequencies comparable to those of the AKR by parametric excitation or some other process, thus providing the few background photons required for the generation of AKR by the Wu and Lee cyclotron maser instability. The AKR, perhaps by modifying the magnetospheric electron velocity distribution, might have produced the observed VLF emissions. Alternatively, the VLF emissions may have arisen from the same anisotropic and unstable electron distribution function responsible for the AKR. 41 refs., 5 figs.

Rosenberg, T.J.; Singh, S.; Wu, C.S. [Univ. of Maryland, College Park, MD (United States); LaBelle, J.; Treumann, R.A. [Max-Planck-Institut fuer Physik und Astrophysik, Garching bei Muechen (Germany); Inan, U.S. [Stanford Univ., Stanford, CA (United States); Lanzerotti, L.J. [AT& T Bell Laboratories, Murray Hill, NJ (United States)

1995-01-01T23:59:59.000Z

342

The United States Government Configuration Baseline ...  

Science Conference Proceedings (OSTI)

... ITL). The United States Government Configuration Baseline (USGCB) - Windows Vista Firewall Content. Warning Notice. ...

2013-08-02T23:59:59.000Z

343

The United States Government Configuration Baseline ...  

Science Conference Proceedings (OSTI)

... Laboratory (ITL). The United States Government Configuration Baseline (USGCB) - Windows 7 Content. Warning Notice. Do ...

2013-08-02T23:59:59.000Z

344

Photovoltaic solar concentrator module  

DOE Patents (OSTI)

This invention consists of a planar photovoltaic concentrator module for producing an electrical signal from incident solar radiation which 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, C.J.

1991-05-16T23:59:59.000Z

345

EE580 Solar Cells Todd J. Kaiser  

E-Print Network (OSTI)

with Photovoltaic Cells Contains initial work for the current PV kit experiments o Solar Cells o Solar Electric Arrays o Photovoltaics in Arrays: Solar Cells Generating Electricity http://www.californiasolarcenter.org/history_pv and the Solar Radiation Monitoring Laboratory

Kaiser, Todd J.

346

Baseline LAW Glass Formulation Testing  

Science Conference Proceedings (OSTI)

The major objective of the baseline glass formulation work was to develop and select glass formulations that are compliant with contractual and processing requirements for each of the LAW waste streams. Other objectives of the work included preparation and characterization of glasses with respect to the properties of interest, optimization of sulfate loading in the glasses, evaluation of ability to achieve waste loading limits, testing to demonstrate compatibility of glass melts with melter materials of construction, development of glass formulations to support ILAW qualification activities, and identification of glass formulation issues with respect to contract specifications and processing requirements.

Kruger, Albert A. [USDOE Office of River Protection, Richland, WA (United States); Mooers, Cavin [The Catholic University of America, Washington, DC (United States). Vitreous State Lab.; Bazemore, Gina [The Catholic University of America, Washington, DC (United States). Vitreous State Lab; Pegg, Ian L. [The Catholic University of America, Washington, DC (United States). Vitreous State Lab; Hight, Kenneth [The Catholic University of America, Washington, DC (United States). Vitreous State Lab; Lai, Shan Tao [The Catholic University of America, Washington, DC (United States). Vitreous State Lab; Buechele, Andrew [The Catholic University of America, Washington, DC (United States). Vitreous State Lab; Rielley, Elizabeth [The Catholic University of America, Washington, DC (United States). Vitreous State Lab; Gan, Hao [The Catholic University of America, Washington, DC (United States). Vitreous State Lab; Muller, Isabelle S. [The Catholic University of America, Washington, DC (United States). Vitreous State Lab; Cecil, Richard [The Catholic University of America, Washington, DC (United States). Vitreous State Lab

2013-06-13T23:59:59.000Z

347

Estimates of Radiation Exposures for Human Crews in Deep Space from the January 15, 2005, Solar Energetic Particle Event Using the Earth-Moon-Mars Radiation Environment Module  

Science Conference Proceedings (OSTI)

Technical Paper / Special Issue on the 16th Biennial Topical Meeting of the Radiation Protection and Shielding Division / Radiation Transport and Protection

Mahmoud PourArsalan; Lawrence W. Townsend; Nathan A. Schwadron; Kamen Kozarev; Maher A. Dayeh; Mihir I. Desai

348

Immersion Cooling of Photovoltaic Cells in Highly Concentrated Solar Beams.  

E-Print Network (OSTI)

??Concentrated solar radiation can be utilized to generate electrical power from photovoltaic cells, but concentrated solar radiation increases the photovoltaic cell’s temperature. This increase in… (more)

Darwish, Ahmed

2011-01-01T23:59:59.000Z

349

Baseline Ozone Results from 1923 to 1955  

Science Conference Proceedings (OSTI)

Baseline total atmospheric ozone values have been derived, using the Chappuis band, from historical data for 11 Smithsonian sites, including both Northern and Southern Hemispheres. The main baselines consist of 1194 and 970 days respectively for ...

Ronald J. Angione; Robert G. Roosen

1983-08-01T23:59:59.000Z

350

Solar energy collector  

SciTech Connect

An evacuated solar collector receives impinging solar radiation of varying intensity and converts the same into useful thermal energy in a selected working range of the ambience. The collector has absorber and window surfaces selectively coated for rendering the conversion of solar radiation to useful thermal energy more efficient by increasing absorption, reducing reradiation, and in certain cases may include at least one electrically conductive coating on the solar window which is capable of carrying an electric current, for suppressing snow accumulation thereon.

Kenny, N.S.

1980-11-18T23:59:59.000Z

351

Baseline Test Specimen Machining Report  

SciTech Connect

The Next Generation Nuclear Plant (NGNP) Project is tasked with selecting a high temperature gas reactor technology that will be capable of generating electricity and supplying large amounts of process heat. The NGNP is presently being designed as a helium-cooled high temperature gas reactor (HTGR) with a large graphite core. The graphite baseline characterization project is conducting the research and development (R&D) activities deemed necessary to fully qualify nuclear-grade graphite for use in the NGNP reactor. Establishing nonirradiated thermomechanical and thermophysical properties by characterizing lot-to-lot and billet-to-billet variations (for probabilistic baseline data needs) through extensive data collection and statistical analysis is one of the major fundamental objectives of the project. The reactor core will be made up of stacks of graphite moderator blocks. In order to gain a more comprehensive understanding of the varying characteristics in a wide range of suitable graphites, any of which can be classified as “nuclear grade,” an experimental program has been initiated to develop an extensive database of the baseline characteristics of numerous candidate graphites. Various factors known to affect the properties of graphite will be investigated, including specimen size, spatial location within a graphite billet, specimen orientation within a billet (either parallel to [P] or transverse to [T] the long axis of the as-produced billet), and billet-to-billet variations within a lot or across different production lots. Because each data point is based on a certain position within a given billet of graphite, particular attention must be paid to the traceability of each specimen and its spatial location and orientation within each billet. The evaluation of these properties is discussed in the Graphite Technology Development Plan (Windes et. al, 2007). One of the key components in the evaluation of these graphite types will be mechanical testing on specimens drawn from carefully controlled sections of each billet. To this end, this report will discuss the machining of the first set of test specimens that will be evaluated in this program through tensile, compressive, and flexural testing. Validation that the test specimens have been produced to the tolerances required by the applicable ASTM standards, and to the quality control levels required by this program, will demonstrate the viability of sending graphite to selected suppliers that will provide valuable and certifiable data to future data sets that are integral to the NGNP program and beyond.

mark Carroll

2009-08-01T23:59:59.000Z

352

Radiators  

SciTech Connect

A heat-exchange radiator is connected to a fluid flow circuit by a connector which provides one member of an interengageable spigot and socket pair for push-fit, fluid-tight, engagement between the connector and the radiator, with latching formations at least one of which is resilient. Preferably the connector carries the spigot which tapers and engages with a socket of corresponding shape, the spigot carrying an O-ring seal and either latching fingers or a resilient latching circlip.

Webster, D. M.

1985-07-30T23:59:59.000Z

353

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

354

Pinellas Plant Environmental Baseline Report  

Science Conference Proceedings (OSTI)

The Pinellas Plant has been part of the Department of Energy`s (DOE) nuclear weapons complex since the plant opened in 1957. In March 1995, the DOE sold the Pinellas Plant to the Pinellas County Industry Council (PCIC). DOE has leased back a large portion of the plant site to facilitate transition to alternate use and safe shutdown. The current mission is to achieve a safe transition of the facility from defense production and prepare the site for alternative uses as a community resource for economic development. Toward that effort, the Pinellas Plant Environmental Baseline Report (EBR) discusses the current and past environmental conditions of the plant site. Information for the EBR is obtained from plant records. Historical process and chemical usage information for each area is reviewed during area characterizations.

Not Available

1997-06-01T23:59:59.000Z

355

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

356

Solar radiation data forecast and interpolation analysis. Folder I: Part I. Executive summary; Part II. Technical analysis (Tasks I and II); Part III. Appendices (Tasks I and II). Final report  

DOE Green Energy (OSTI)

Data were evaluated from the rehabilitated 52-station SOLMET solar radiation network. For economic reasons, it is important that solar radiation data measured at a station represent as broad an area within the contiguous United States as possible, and that techniques be established to transform radiation measurements taken on a horizontal surface to what would be seen by an inclined surface. Methods applicable to these problems have been developed. A Climatological Cell Statistics (CCS) Method was developed to obtain the statistics of up to 24 variables occurring in combination with each other using surface meteorological data and to relate these statistics to the solar radiation measurements. A method to evaluate the differences between two insolation data sets, called the Wedge Method, was developed to determine the representative area of a radiation measurement site. These methods were used to evaluate the capabilities of the NOAA Solar Radiation Model to interpolate between measurement sites. Twenty-four methods of calculating solar radiation on inclined surfaces were investigated. All algorithms were rewritten in a common convention and nomenclature and the measurements required for each method were categorized.

Woo, J. Jr.

1979-04-01T23:59:59.000Z

357

Baseline Gas Turbine Development Program fifth quarterly progress report  

DOE Green Energy (OSTI)

Progress is reported for a program to demonstrate by 1976 an experimental gas turbine powered automobile which meets the 1976 Federal Emissions Standards, has significantly improved fuel economy, and is competitive in performance, reliability, and potential manufacturing cost with the conventional piston engine powered, standard size American automobile. Baseline engines 5, 6, and 7 were built. Action to correct a 7 percent power deficiency is underway. Two baseline vehicles are operational, with the third ready for engine installation. Measurement of baseline performance and emissions is in process. NASA Lewis has their baseline engine installation operational. They are also assemblying a cold flow power turbine test rig and have made substantial progress in defining upgraded engine aerodynamics. A study was made of sizing the upgraded engine for a compact size vehicle. Chrysler's proprietary linerless insulation was installed into the endurance engine. Evaluation was delayed by a power turbine section failure. Substantial progress was made in Chrysler's proprietary low emissions burner program. Preparations are being made to evaluate the Solar burner. Evaluation of ceramic regenerator cores are in process. A seal development program was initiated. AiResearch has most of the integrated control system preprototype elements defined, and has many key elements under test. Their transient engine simulation model is nearly operational. A compressor turbine wheel disc is being designed utilizing Pratt-Whitney superplastic forging properties. Procurement of two variable inlet guide vane assemblies is about complete. Detail drawings of a Free Rotor vehicle installation are being completed.

Wagner, C.E.

1974-01-31T23:59:59.000Z

358

Petrovay: Solar physics Solar wind and heliosphere THE SOLAR WIND AND THE HELIOSPHERE  

E-Print Network (OSTI)

Petrovay: Solar physics Solar wind and heliosphere THE SOLAR WIND AND THE HELIOSPHERE 1951: First proposal of solar corpuscular radiation by Biermann, to explain slight deviation of comets' ion tails from radial (aberration effect). 1958: Parker's supersonic wind model 1962: Mariner-2 detects solar wind. v

Petrovay, Kristóf

359

Aerosols and solar energy  

DOE Green Energy (OSTI)

A brief description is presented of the involvement of the Solar Energy Research Institute (SERI) in atmospheric research, including aerosol characterization and modeling. The use of both rigorous and simple models for radiation transport is described. Modeled broadband solar irradiance data are shown to illustrate the important influence that aerosols have on the energy available to solar systems and the economics of solar systems design. Standard aerosol measurement methods for solar applications are discussed along with the need for improved instrumentation and methods.

Bird, R. E.; Hulstrom, R. L.

1979-01-01T23:59:59.000Z

360

Baseline Graphite Characterization: First Billet  

SciTech Connect

The Next Generation Nuclear Plant Project Graphite Research and Development program is currently establishing the safe operating envelope of graphite core components for a very high temperature reactor design. To meet this goal, the program is generating the extensive amount of quantitative data necessary for predicting the behavior and operating performance of the available nuclear graphite grades. In order determine the in-service behavior of the graphite for the latest proposed designs, two main programs are underway. The first, the Advanced Graphite Creep (AGC) program, is a set of experiments that are designed to evaluate the irradiated properties and behavior of nuclear grade graphite over a large spectrum of temperatures, neutron fluences, and compressive loads. Despite the aggressive experimental matrix that comprises the set of AGC test runs, a limited amount of data can be generated based upon the availability of space within the Advanced Test Reactor and the geometric constraints placed on the AGC specimens that will be inserted. In order to supplement the AGC data set, the Baseline Graphite Characterization program will endeavor to provide supplemental data that will characterize the inherent property variability in nuclear-grade graphite without the testing constraints of the AGC program. This variability in properties is a natural artifact of graphite due to the geologic raw materials that are utilized in its production. This variability will be quantified not only within a single billet of as-produced graphite, but also from billets within a single lot, billets from different lots of the same grade, and across different billets of the numerous grades of nuclear graphite that are presently available. The thorough understanding of this variability will provide added detail to the irradiated property data, and provide a more thorough understanding of the behavior of graphite that will be used in reactor design and licensing. This report covers the development of the Baseline Graphite Characterization program from a testing and data collection standpoint through the completion of characterization on the first billet of nuclear-grade graphite. This data set is the starting point for all future evaluations and comparisons of material properties.

Mark C. Carroll; Joe Lords; David Rohrbaugh

2010-09-01T23:59:59.000Z

Note: This page contains sample records for the topic "baseline 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

The potential of different artificial neural network (ANN) techniques in daily global solar radiation modeling based on meteorological data  

Science Conference Proceedings (OSTI)

The main objective of present study is to predict daily global solar radiation (GSR) on a horizontal surface, based on meteorological variables, using different artificial neural network (ANN) techniques. Daily mean air temperature, relative humidity, sunshine hours, evaporation, and wind speed values between 2002 and 2006 for Dezful city in Iran (32 16'N, 48 25'E), are used in this study. In order to consider the effect of each meteorological variable on daily GSR prediction, six following combinations of input variables are considered: (I)Day of the year, daily mean air temperature and relative humidity as inputs and daily GSR as output. (II)Day of the year, daily mean air temperature and sunshine hours as inputs and daily GSR as output. (III)Day of the year, daily mean air temperature, relative humidity and sunshine hours as inputs and daily GSR as output. (IV)Day of the year, daily mean air temperature, relative humidity, sunshine hours and evaporation as inputs and daily GSR as output. (V)Day of the year, daily mean air temperature, relative humidity, sunshine hours and wind speed as inputs and daily GSR as output. (VI)Day of the year, daily mean air temperature, relative humidity, sunshine hours, evaporation and wind speed as inputs and daily GSR as output. Multi-layer perceptron (MLP) and radial basis function (RBF) neural networks are applied for daily GSR modeling based on six proposed combinations. The measured data between 2002 and 2005 are used to train the neural networks while the data for 214 days from 2006 are used as testing data. The comparison of obtained results from ANNs and different conventional GSR prediction (CGSRP) models shows very good improvements (i.e. the predicted values of best ANN model (MLP-V) has a mean absolute percentage error (MAPE) about 5.21% versus 10.02% for best CGSRP model (CGSRP 5)). (author)

Behrang, M.A.; Assareh, E. [Department of Mechanical Engineering, Young Researchers Club, Islamic Azad University, Dezful Branch (Iran); Ghanbarzadeh, A.; Noghrehabadi, A.R. [Department of Mechanical Engineering, Engineering Faculty, Shahid Chamran University, Ahvaz (Iran)

2010-08-15T23:59:59.000Z

362

Solar energy conversion systems engineering and economic analysis radiative energy input/thermal electric output computation. Volume III  

DOE Green Energy (OSTI)

The direct energy flux analytical model, an analysis of the results, and a brief description of a non-steady state model of a thermal solar energy conversion system implemented on a code, SIRR2, as well as the coupling of CIRR2 which computes global solar flux on a collector and SIRR2 are presented. It is shown how the CIRR2 and, mainly, the SIRR2 codes may be used for a proper design of a solar collector system. (LEW)

Russo, G.

1982-09-01T23:59:59.000Z

363

SOLAR GLARE HAZARD ANALYSIS TOOL (SGHAT)  

With growing numbers of solar energy systems being ... radiation from solar power plants include the ... for the U.S. Department of Energy’s National Nuclear ...

364

Passive solar workbook  

SciTech Connect

After a case is presented for the use of solar energy, principles of solar kinetics, solar radiation and weather, and heat flow are reviewed and active, passive and hybrid systems are briefly discussed. Site planning, orientation, and landscaping and solar access are covered, as are the design and components of passive solar systems. Calculation methods are presented for determining building heating load profile, auxiliary load profile, and thermal storage capacity. Construction details are given for foundation, wall, and storage insulation, Trombe walls, movable insulation, and shading devices. Passive solar cooling is also covered. Interior applications for passive solar design are discussed and financial considerations are presented. (LEW)

1981-08-01T23:59:59.000Z

365

TECHNIQUES FOR MEASURING CIRCUMSOLAR RADIATION  

E-Print Network (OSTI)

from the sun, while for pyrheliometry and solar collectionlens and a sun- shade to prevent direct solar radiation fromby the solar disc and a circle 30 from the sun's center.

Hunt, A.J.

2011-01-01T23:59:59.000Z

366

Radiative Impacts on the Growth of Drops within Simulated Marine Stratocumulus. Part II: Solar Zenith Angle Variations  

Science Conference Proceedings (OSTI)

The effects of solar heating at a variety of solar zenith angles (?o) on the vapor depositional growth of cloud drops, and hence the potential for collection enhancement, is investigated. A large eddy simulation (LES) model is used to predict the ...

Christopher M. Hartman; Jerry Y. Harrington

2005-07-01T23:59:59.000Z

367

Hanford site technical baseline data dictionary  

Science Conference Proceedings (OSTI)

The purpose of this Data Dictionary is to provide information concerning the structure and information contained in the Hanford Site Technical Baseline Database (HSTD).

Baynes, P.A. [Lockheed Martin Hanford Corp., Richland, WA (United States)

1997-04-30T23:59:59.000Z

368

Defining Information System For the Baseline Inventory | Department...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Defining Information System For the Baseline Inventory Defining Information System For the Baseline Inventory Defining Information System For the Baseline Inventory Defining...

369

Importance of Accurate Liquid Water Path for Estimation of Solar Radiation in Warm Boundary Layer Clouds: An Observational Study  

Science Conference Proceedings (OSTI)

A 1-yr observational study of overcast boundary layer stratus at the U.S. Department of Energy Atmospheric Radiation Measurement Program Southern Great Plains site illustrates that surface radiation has a higher sensitivity to cloud liquid water ...

Manajit Sengupta; Eugene E. Clothiaux; Thomas P. Ackerman; Seiji Kato; Qilong Min

2003-09-01T23:59:59.000Z

370

paNTICA: A Fast 3D Radiative Transfer Scheme to Calculate Surface Solar Irradiance for NWP and LES Models  

Science Conference Proceedings (OSTI)

The resolution of numerical weather prediction models is constantly increasing, making it necessary to consider three-dimensional radiative transfer effects such as cloud shadows cast into neighboring grid cells and thus affecting radiative ...

Ulrike Wissmeier; Robert Buras; Bernhard Mayer

2013-08-01T23:59:59.000Z

371

Insolation data manual: long-term monthly averages of solar radiation, temperature, degree-days and global anti K/sub T/ for 248 national weather service stations  

DOE Green Energy (OSTI)

Monthly averaged data is presented which describes the availability of solar radiation at 248 National Weather Service stations. Monthly and annual average daily insolation and temperature values have been computed from a base of 24 to 25 years of data. 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/sup 0/C (65/sup 0/F). For each station, global anti K/sub T/ (cloudiness index) were calculated on a monthly and annual basis. (MHR)

Knapp, C L; Stoffel, T L; Whitaker, S D

1980-10-01T23:59:59.000Z

372

Solar Atlas for the Mediterranean Carsten Hoyer-Klick  

E-Print Network (OSTI)

The solar resource is the "fuel" of solar energy applications and its availability is a key economic on the further development. Keywords: solar radiation, direct normal radiation, atlas, solar energy potentials. 1. Introduction Solar energy has a large potential for renewable energy generation. Solar energy is highly

Paris-Sud XI, Université de

373

Methods to Develop Energy Baselines for California's  

E-Print Network (OSTI)

Methods to Develop Energy Baselines for California's Regions Transportation Energy Research PIER Transportation Research www.energy.ca.gov/research/transportation May 2011 The Issue New methods and baseline impacts of land use policies and infrastructure investments, and guide future land use decisions

374

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

E-Print Network (OSTI)

to measure the solar and circumsolar (around the sun) radia-solar and circum- solar radiation plotted versus angular distance from the center of the sun.solar radiation (that originating from the disk of the sun)

Authors, Various

2010-01-01T23:59:59.000Z

375

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

DOE Green Energy (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

376

The US Long Baseline Neutrino Experiment Study  

Science Conference Proceedings (OSTI)

The US Long Baseline Neutrino Experiment Study was commissioned jointly by Brookhaven National Laboratory (BNL)and Fermi National Accelerator Laboratory (FNAL) to investigate the potential for future U.S. based long baseline neutrino oscillation experiments using MW class conventional neutrino beams that can be produced at FNAL. The experimental baselines are based on two possible detector locations: 1) off?axis to the existing FNAL NuMI beamline at baselines of 700 to 810 km and 2) NSF's proposed future Deep Underground Science and Engineering Laboratory (DUSEL) at baselines greater than 1000 km. Two detector technologies are considered: a megaton class Water Cherenkov detector deployed deep underground at a DUSEL site

Mary Bishai; US Long Baseline Study Group

2008-01-01T23:59:59.000Z

377

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

378

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

379

Temporal Structure of the Solar Radiation Field in Cloudy Conditions: Are Retrievals of Hourly Averages from Space Possible?  

Science Conference Proceedings (OSTI)

The authors examine the temporal variability of measured 415- and 611.7-nm spectral solar irradiance in cloudy stratocumulus conditions. This is accomplished by normalizing measured data by the equivalent irradiance for cloudless conditions and ...

Manuel Nunez; Kurt Fienberg; Christopher Kuchinke

2005-01-01T23:59:59.000Z

380

Satellite-Derived Surface Radiation Budget over the African Continent. Part I: Estimation of Downward Solar Irradiance and Albedo  

Science Conference Proceedings (OSTI)

Downward surface solar irradiance and albedo of the African continent are estimated from Meteosat B2 data at 30-km spatial resolution. The algorithm, based on Dedieu et al.’s approach, is verified against other satellite estimates and ground-...

Mamoudou B. Ba; Robert Frouin; Sharon E. Nicholson; Gérard Dedieu

2001-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "baseline 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

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

382

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

383

Total Solar Irradiance Measurements During Solar Cycles 22 and 23  

E-Print Network (OSTI)

Total Solar Irradiance Measurements During Solar Cycles 22 and 23 Sabri Mekaoui Abstract The Total Solar Irradiance (TSI) is a measure of the radiative output from the Sun. Its value and its long solar cycles. Cycle 22 lasted from late 1986 until 1996 while cycle 23 is currently ending

Glineur, François

384

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

E-Print Network (OSTI)

D. E. F. G. H. I. Solar Radiation Sky Properties AtmosphericDEVELOPMENT TASKS A. Solar Radiation B. Sky Properties c.a collector where solar radiation is admitted into the

Authors, Various

2012-01-01T23:59:59.000Z

385

Atlas Brasileiro de Energia Solar (Brazilian Atlas of Solar Energy) |  

Open Energy Info (EERE)

Atlas Brasileiro de Energia Solar (Brazilian Atlas of Solar Energy) Atlas Brasileiro de Energia Solar (Brazilian Atlas of Solar Energy) Dataset Summary Description (Abstract): The Brazilian Atlas of Solar Energy is divided into five distinct sections. The first section describes the methodology used to obtain the solar radiation data and to produce the solar maps. The second section contains information on the confidence levels of the methodology employed, obtained by comparing solar estimates provided by BRASIL- SR model with estimates provided by other models and ground data. The third section presents the maps of various solar radiation components (global, direct, diffuse, tilted plane, and PAR). The fourth section analyzes the temporal and spatial variations and trends of solar energy resources and, (Purpose): The Brazilian Atlas of Solar Energy is designed to supply for a portion of the demand for information

386

A Study of the Solar Radiation Effect on the 4.3-?m Channels of the High-Resolution Infrared Radiation Sounder  

Science Conference Proceedings (OSTI)

Measurements of infrared radiation from the National Oceanic and Atmospheric Administration series of satellites are used to retrieve atmospheric temperature, moisture, and ozone. It is well known that the measurements from the 4.3-?m channels of ...

Larry M. McMillin; David S. Crosby

2000-10-01T23:59:59.000Z

387

Solar tracking system  

SciTech Connect

This report describes an automated solar tracking system which is adaptable to most solar collectors which require alignment with the sun's radiation. The system uses partially shaded photovoltaic solar cells to produce error signals for both elevation and azimuth tracking with a high degree of accuracy. An electrical circuit processes the error signals and controls gearmotors to direct the solar collector toward the sun.

Hammons, B.E.

1977-06-01T23:59:59.000Z

388

LongBaseline Neutrino Physics and Astrophysics Institute for Nuclear Theory Summer Program 2010  

E-Print Network (OSTI)

LongBaseline Neutrino Physics and Astrophysics Institute for Nuclear Theory Summer Program 2010 for Nuclear Theory Summer Program 2010 Robert J. Wilson 8/11/2010Page 2 Wednesday August 11th Session 6 PWG C520 14:00 Solar, Geo, and Reactor Neutrinos N. Tolich (Washington) 14:30 Q&A Guests/PWG Session 8

Washington at Seattle, University of - Department of Physics, Electroweak Interaction Research Group

389

California solar data manual  

DOE Green Energy (OSTI)

Factors that determined the data contents of the manual are presented. Estimates of errors in the data are provided, and the impact of these errors on solar design is discussed. The state is divided into 15 solar zones of roughly similar solar radiation conditions, which are illustrated along with page references to the most relevant solar and climate data. A guide to the data tables and graphs is provided, which are displayed under solar, climate, and sky charts. A guide is given to simplified design methods to predict performance and cost of solar heating and cooling systems. (MHR)

Berdahl, P.; Grether, D.; Martin, M.; Wahlig, M.

1978-01-01T23:59:59.000Z

390

Site-specific solar resource measurements for industrial solar applications  

DOE Green Energy (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

391

STANFORD SYNCHROTRON RADIATION LIGHTSOURCE The Stanford Synchrotron...  

NLE Websites -- All DOE Office Websites (Extended Search)

Solar Cells A new process that simultaneously combines the light and heat of solar radiation to generate electricity could offer more than double the efficiency of existing...

392

Baseline Wind Energy Facility | Open Energy Information  

Open Energy Info (EERE)

Baseline Wind Energy Facility Baseline Wind Energy Facility Jump to: navigation, search Name Baseline Wind Energy Facility Facility Baseline Wind Energy Facility Sector Wind energy Facility Type Commercial Scale Wind Facility Status Proposed Owner First Wind Developer First Wind Location Gilliam County OR Coordinates 45.626863°, -120.162885° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":45.626863,"lon":-120.162885,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

393

Tanzania Roads Evaluation - Baseline | Data.gov  

NLE Websites -- All DOE Office Websites (Extended Search)

Tanzania Roads Evaluation - Baseline Tanzania Roads Evaluation - Baseline Agriculture Community Menu DATA APPS EVENTS DEVELOPER STATISTICS COLLABORATE ABOUT Agriculture You are here Data.gov » Communities » Agriculture » Data Tanzania Roads Evaluation - Baseline Dataset Summary Description Baseline survey for impact evaluation of MCC's roads improvement investments in Tanzania. The evaluation will examine the project's household- and community-level effects on local standards of living along the roads. For the evaluation of major roads on the mainland, Economic Development Initiatives conducted a survey of 3,000 households in 200 communities in 2009. For the Pemba rural roads evaluation, Economic Development Initiatives conducted a survey on 570 households in the treatment group and 630 households in the comparison group.

394

THE PASSIVE SOLAR DESIGN PROCESS FOR A SMALL OFFICE/LABORATORY BUILDING  

E-Print Network (OSTI)

coolers. active solar heating and underground thermalbeam solar radiation is preferred to counteract the heatingdays vs. 5000 heating degree days). Passive solar potentials

Andersson, Brandt

2011-01-01T23:59:59.000Z

395

Core-Shell Nanopillar Array Solar Cells using Cadmium Sulfide Coating on Indium Phosphide Nanopillars  

E-Print Network (OSTI)

each wavelength of the solar spectrum, or external quantumgray curve shows the solar spectrum (blackbody radiation)covers most of the solar spectrum where irradiance is

Tu, Bor-An Clayton

2013-01-01T23:59:59.000Z

396

NSRDB: Temporary access to 1991-2010

The National Solar...  

Open Energy Info (EERE)

National Solar Radiation Data Base (NSRDB) is the most comprehensive collection of solar data freely available. The newly available 1991 - 2010 NSRDB contains hourly solar...

397

Solar Rights | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Solar Rights Solar Rights Solar Rights < Back Eligibility Multi-Family Residential Residential Savings Category Heating & Cooling Commercial Heating & Cooling Solar Heating Buying & Making Electricity Swimming Pool Heaters Water Heating Program Info State North Carolina Program Type Solar/Wind Access Policy Provider North Carolina Department of Commerce 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 water heating, active space heating and cooling, passive heating, or generating electricity for residential property."* However, city and county ordinances may prohibit the installation of solar-energy collectors that are visible from the

398

Radiation and Ozone  

Science Conference Proceedings (OSTI)

Radiation is the driving force for the general circulation of the atmosphere and controls the Earth's climate. Ozone is responsible for the warm stratosphere and protects life on Earth from harmful solar ultraviolet radiation. In July 1959, the ...

G. Ohring; R. D. Bojkov; H-J. Bolle; R. D. Hudson; H. Volkert

2009-11-01T23:59:59.000Z

399

Robustness of Dynamical Feedbacks from Radiative Forcing: 2% Solar versus 2 × CO2 Experiments in an Idealized GCM  

Science Conference Proceedings (OSTI)

Despite the differences in the spatial patterns of the external forcing associated with a doubling CO2 and with a 2% solar variability, the final responses in the troposphere and at the surface in a three-dimensional general circulation model ...

Ming Cai; Ka-Kit Tung

2012-07-01T23:59:59.000Z

400

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

E-Print Network (OSTI)

) A method of generating electrical current from light Photovoltaic Cell A cell that generates an electrical current when illuminated by light­ also called a solar cell Photovoltaic Module A group of photovoltaic cells connected together Resistance An electrical component that resists current flow turning

Oregon, University of

Note: This page contains sample records for the topic "baseline 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 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

402

Solar retorting of oil shale  

DOE Green Energy (OSTI)

An apparatus and method are described 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. In the second chamber, the oil shale is maintained at the retorting temperature, without direct exposure to solar radiation, until the retorting is complete.

Gregg, D.W.

1981-04-28T23:59:59.000Z

403

Introduction to meteorological measurements and data handling for solar energy applications. Task IV. Development of an isolation handbook and instrument package  

DOE Green Energy (OSTI)

The following are covered: the Sun and its radiation, solar radiation and atmospheric interaction, solar radiation measurement methods, spectral irradiance measurements of natural sources, the measurement of infrared radiation, the measurement of circumsolar radiation, some empirical properties of solar radiation and related parameters, duration of sunshine, and meteorological variables related to solar energy. Included in appendices are manufacturers and distributors of solar radiation measuring instruments and an approximate method for quality control of solar radiation instruments. (MHR)

None

1980-01-01T23:59:59.000Z

404

Passive solar design handbook  

DOE Green Energy (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

405

Solar Thermal Group Australian National University  

E-Print Network (OSTI)

of Concentrated Solar Power Parabolic Troughs (Concentration Ratio ~ 80) #12;Solar Thermal Group AustralianC 500o C Solar Concentrator (Dish or Trough) Rebecca Dunn & Dr Keith Lovegrove rebecca Concentrating Solar Power ­ The Basics 1. Parabolic mirror. 2. Receiver at focus. 3. Solar Radiation heats fluid

406

Incoming Solar and Infrared Radiation Derived from METEOSAT: Impact on the Modeled Land Water and Energy Budget over France  

Science Conference Proceedings (OSTI)

The Land Surface Analysis Satellite Applications Facility (LSA SAF) project radiation fluxes, derived from the Meteosat Second Generation (MSG) geostationary satellite, were used in the Interactions between Soil, Biosphere, and Atmosphere (ISBA) ...

D. Carrer; S. Lafont; J.-L. Roujean; J.-C. Calvet; C. Meurey; P. Le Moigne; I. F. Trigo

2012-04-01T23:59:59.000Z

407

The Influence of Solar Zenith Angle and Cloud Type on Cloud Radiative Forcing at the Surface in the Arctic  

Science Conference Proceedings (OSTI)

Measurements of the long- and shortwave incident radiation taken from the USCGC Polar Sea during a research cruise to the Northeast Water Polynya during the summer of 1993 are analyzed together with observations of cloud type and amount to ...

Peter J. Minnett

1999-01-01T23:59:59.000Z

408

Post-fire changes in net shortwave radiation along a latitudinal gradient in boreal North America  

E-Print Network (OSTI)

contrast, winter incoming solar radiation and summer albedoDa) and incoming solar radiation (S in ), both of which varymean all-sky incoming solar radiation at the surface (S in )

Y, Jin; Randerson, J T; Goulden, M L; Goetz, S J

2012-01-01T23:59:59.000Z

409

Investigation of Aerosol Sources, Lifetime and Radiative Forcing through Multi-Instrument Data Assimilation  

E-Print Network (OSTI)

as clouds reflect solar radiation and trap outgoing CHAPTEReffectively scatter solar radiation, such as sulfate, reduceF o = 1361W/m 2 (Solar Radiation and Climate Experiement (

Rubin, Juli Irene

2012-01-01T23:59:59.000Z

410

Origin of the Solar System  

NLE Websites -- All DOE Office Websites (Extended Search)

University of Chicago April 5, 2006 Extraterrestrial Materials: The Role of Synchrotron Radiation Analyses in the Study of Our Solar System Stephen R. Sutton University of...

411

Preliminary Analysis of Surface Radiation Measurement Data Quality...  

NLE Websites -- All DOE Office Websites (Extended Search)

primary radiation flux measurements at the SGP extended facilities are obtained from the Solar Infrared Radiation Station (SIRS). In this study, we examine the radiation...

412

Salton Sea sampling program: baseline studies  

DOE Green Energy (OSTI)

Baseline data are provided on three species of fish from the Salton Sea, California. The fishes considered were the orange mouth corvina (Cynoscion xanthulus), gulf croaker (Bairdiella icistius) and sargo (Anisotremus davidsonii). Morphometric and meristic data are presented as a baseline to aid in the evaluation of any physiological stress the fish may experience as a result of geothermal development. Analyses were made on muscle, liver, and bone of the fishes sampled to provide baseline data on elemental tissue burdens. The elements measured were: As, Br, Ca, Cu, Fe, Ga, K, Mn, Mi, Pb, Rb, Se, Sr, Zn, and Zr. These data are important if an environmentally sound progression of geothermal power production is to occur at the Salton Sea.

Tullis, R.E.; Carter, J.L.; Langlois, G.W.

1981-04-13T23:59:59.000Z

413

Solar heater  

SciTech Connect

The invention is a solar heater which may function as a humidifier and which has a reflector that is constructed to provide a window, and external thermal insulation. The window has a cover that is positioned to transmit solar radiation to the reflector. The top portion of the reflector has an opening, and a container is removably positioned in the opening. The reflector has a geometry that reflects a high percentage of solar energy to the container, which has a surface with high absorptance. The container has a removable lid for confining heat within the container for certain functions, such as boiling water or drying clothes. When used as a humidifier, the container is filled with water and the lid is removed.

Hill, C.W.

1981-06-23T23:59:59.000Z

414

Solar Neutrinos  

DOE R&D Accomplishments (OSTI)

The prospect of studying the solar energy generation process directly by observing the solar neutrino radiation has been discussed for many years. The main difficulty with this approach is that the sun emits predominantly low energy neutrinos, and detectors for observing low fluxes of low energy neutrinos have not been developed. However, experimental techniques have been developed for observing neutrinos, and one can foresee that in the near future these techniques will be improved sufficiently in sensitivity to observe solar neutrinos. At the present several experiments are being designed and hopefully will be operating in the next year or so. We will discuss an experiment based upon a neutrino capture reaction that is the inverse of the electron-capture radioactive decay of argon-37. The method depends upon exposing a large volume of a chlorine compound, removing the radioactive argon-37 and observing the characteristic decay in a small low-level counter.

Davis, R. Jr.; Harmer, D. S.

1964-12-00T23:59:59.000Z

415

Unglazed transpired solar collector having a low thermal ...  

An unglazed transpired solar collector using solar radiation to heat incoming air for distribution, comprising an unglazed absorber formed of low thermal-conductance ...

416

Window and seal design for a small particle solar receiver.  

E-Print Network (OSTI)

??Central receivers for solar power towers have recently been under intense investigation. They can convert solar radiation into electricity by supplying heat to a thermodynamic… (more)

Mande, Onkar Kiran

2012-01-01T23:59:59.000Z

417

MEASUREMENT AND ANALYSIS OF CIRCUMSOLAR RADIATION  

E-Print Network (OSTI)

total direct solar (from the disk of the sun) radiation.by the direct solar (coming from the disk of the sun) plussolar radiation (that originating from the disk of the sun)

Grether, Donald

2013-01-01T23:59:59.000Z

418

Better Buildings Neighborhood Program: Step 4: Establish Baseline...  

NLE Websites -- All DOE Office Websites (Extended Search)

Establish Baseline Quality Workforce Standards to someone by E-mail Share Better Buildings Neighborhood Program: Step 4: Establish Baseline Quality Workforce Standards on Facebook...

419

South Africa - Greenhouse Gas Emission Baselines and Reduction...  

Open Energy Info (EERE)

Africa - Greenhouse Gas Emission Baselines and Reduction Potentials from Buildings Jump to: navigation, search Name South Africa - Greenhouse Gas Emission Baselines and Reduction...

420

Mexico - Greenhouse Gas Emissions Baselines and Reduction Potentials...  

Open Energy Info (EERE)

Greenhouse Gas Emissions Baselines and Reduction Potentials from Buildings Jump to: navigation, search Name Mexico - Greenhouse Gas Emissions Baselines and Reduction Potentials...

Note: This page contains sample records for the topic "baseline 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

Atlantic NAD 83 SLA Baseline Points | Data.gov  

NLE Websites -- All DOE Office Websites (Extended Search)

SLA Baseline Points Ocean Data Tools Technical Guide Map Gallery Regional Planning Feedback Ocean You are here Data.gov Communities Ocean Data Atlantic NAD 83 SLA Baseline...

422

Cost and Performance Baseline for Fossil Energy Plants  

NLE Websites -- All DOE Office Websites (Extended Search)

Baseline for Fossil Energy Plants Volume I (May 2007) Cost and Performance Baseline for Fossil Energy Plants, Volume I Report Desk Reference Presentation Slides "Gasification Costs...

423

PARS II Process Document - Over Target Baseline (OTB) Reporting...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Over Target Baseline (OTB) Reporting PARS II Process Document - Over Target Baseline (OTB) Reporting This document details the process by which contractors should conduct Over...

424

PARS II Process Document - Over Target Baseline (OTB) Reporting...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

PARS II Process Document - Over Target Baseline (OTB) Reporting PARS II Process Document - Over Target Baseline (OTB) Reporting This document details the process by which...

425

Seismic baseline and induction studies- Roosevelt Hot Springs...  

Open Energy Info (EERE)

Seismic baseline and induction studies- Roosevelt Hot Springs, Utah and Raft River, Idaho Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Report: Seismic baseline and...

426

The Use of Two-Stream Approximations for the Parameterization of Solar Radiative Energy Fluxes through Vegetation  

Science Conference Proceedings (OSTI)

Two-stream approximations have been used widely and for a long time in the field of radiative transfer through vegetation in various contexts and in the last 10 years also to model the hemispheric reflectance of vegetated surfaces in numerical ...

Joachim H. Josepoh; Jean Laquinta; Bernard Pinty

1996-10-01T23:59:59.000Z

427

Determination of the Spectral Absorption of Solar Radiation by Marine Stratocumulus Clouds from Airborne Measurements within Clouds  

Science Conference Proceedings (OSTI)

A multiwavelength scanning radiometer has been used to measure the angular distribution of scattered radiation deep within a cloud layer at discrete wavelengths between 0.5 and 2.3 ?m. The relative angular distribution of the intensity field at ...

Michael D. King; Lawrence F. Radke; Peter V. Hobbs

1990-04-01T23:59:59.000Z

428

Solid Waste Program technical baseline description  

SciTech Connect

The system engineering approach has been taken to describe the technical baseline under which the Solid Waste Program is currently operating. The document contains a mission analysis, function analysis, system definition, documentation requirements, facility and project bases, and uncertainties facing the program.

Carlson, A.B.

1994-07-01T23:59:59.000Z

429

Waste management project technical baseline description  

SciTech Connect

A systems engineering approach has been taken to describe the technical baseline under which the Waste Management Project is currently operating. The document contains a mission analysis, function analysis, requirement analysis, interface definitions, alternative analysis, system definition, documentation requirements, implementation definitions, and discussion of uncertainties facing the Project.

Sederburg, J.P.

1997-08-13T23:59:59.000Z

430

Ch.2 Solar Energy to Earth and the Seasons  

E-Print Network (OSTI)

Ch.2 Solar Energy to Earth and the Seasons #12;Learning Objective One: The Solar System Sun Earth,083,000 km #12;Learning Objective Two: The Solar Energy Solar Radiation #12;What is Solar Energy? Energy is the capacity of a physical system to do work. The unit is Joule (J). Solar energy is radiant energy (i

Pan, Feifei

431

Solar Sail: Materials and Space Environmental Effects  

E-Print Network (OSTI)

Theoretical aspects of a solar sail material degradation are presented when the solar electromagnetic and corpuscular forms of radiation were considered as sources of degradation. The analysis of the interaction of two components of solar radiation, the electromagnetic radiation and radiation of low- and high-energy electrons, protons, and helium ions emitted by the Sun with the solar-sail materials is discussed. The physical processes of the interactions of photons, electrons, protons and alpha-particles with sail material atoms and nuclei, leading to the degradation and ionization of solar sail materials are analyzed. The dependence of reflectivity and absorption for solar sail materials on temperature and on wavelength of the electromagnetic spectrum of solar radiation is investigated. It is shown that the temperature of a solar sail increases approximately as T r^(-2/5), with the decrease of the heliocentric distance r, when are taking into account the temperature dependence of optical parameters of the s...

Kezerashvili, Roman Ya

2013-01-01T23:59:59.000Z

432

Radiation Incident on Tilted Collectors  

Science Conference Proceedings (OSTI)

For solar energy system design purposes, observations of solar radiation on a horizontal surface must be converted to values on a tilted energy collector. An empirical conversion relationship, introduced by Liu and Jordan (1960) and based on ...

P. J. Robinson

1981-12-01T23:59:59.000Z

433

Pomona Loop Baseline Performance Testing.PDF  

NLE Websites -- All DOE Office Websites (Extended Search)

Pomona Loop Baseline Performance Testing Summary Pomona Loop Baseline Performance Testing Summary The U.S. Department of Energy's Field Operations Program sponsors the Urban and Freeway Pomona Loop range testing in Southern California. The testing is performed by one of the Program's testing partners, Southern California Edison. The vehicles are tested on local city streets (Urban Loop) and four highways (Freeway Loop). The Urban Loop is 19.3 miles long, ranging in elevation from 900 to 1500 feet, with approximately 50 stop signs and traffic lights. The Freeway Loop is 37.2 miles long, ranging in elevation from 700 to 1150 feet, and consists of four connected freeways shaped like a rectangle. When a vehicle is Pomona Loop tested, eight range tests are performed, with four tests on the Urban Loop and four on the Freeway Loop. The range tests are performed

434

Systematic errors in long baseline oscillation experiments  

Science Conference Proceedings (OSTI)

This article gives a brief overview of long baseline neutrino experiments and their goals, and then describes the different kinds of systematic errors that are encountered in these experiments. Particular attention is paid to the uncertainties that come about because of imperfect knowledge of neutrino cross sections and more generally how neutrinos interact in nuclei. Near detectors are planned for most of these experiments, and the extent to which certain uncertainties can be reduced by the presence of near detectors is also discussed.

Harris, Deborah A.; /Fermilab

2006-02-01T23:59:59.000Z

435

Portable solar cooking apparatus  

Science Conference Proceedings (OSTI)

A portable solar cooking apparatus is described which consists of: at least first and second reflector panels, the first reflector panel having a shaped surface configuration for reflecting solar radiation generally toward a focal point, the second reflector panel also having a shaped surface configuration for reflecting solar radiation toward the focal point, the surface configuration of the first panel interfitting with the surface configuration of the second panel when the panels are placed face-to-face so that the first and second panels mutually support each other and occupy less thickness than without interfitting; and means for supporting material to be heated adjacent the focal point.

Ciambella, B.C.; Ciambella, D.P.; Ciambella, P.A.

1986-04-22T23:59:59.000Z

436

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)

from satellite images. Solar Energy, 56, 3, 207212, 1996. Cano D., Monget J.M., Albuisson M meteorological satellites data. Solar Energy, 37, 3139, 1986. Diabaté L., Demarcq H., MichaudRegas N by geostationary satellites : the Heliosat Project. International Journal of Solar Energy, 5, 261278

Paris-Sud XI, Université de

437

Inferring Surface Solar Absorption from Broadband Satellite Measurements  

Science Conference Proceedings (OSTI)

An atmospheric solar radiation model, in conjunction with a variety of surface albedo models, has been employed to address several issues related to inferring the surface solar radiation budget from satellite measurements. With reference to ...

Robert D. Cess; Inna L. Vulis

1989-09-01T23:59:59.000Z

438

Baseline Gas Turbine Development Program eighth quarterly progress report  

DOE Green Energy (OSTI)

Progress is reported for a program to demonstrate by 1976 an experimental gas turbine powered automobile which meets the 1978 Federal Emissions Standards, has significantly improved fuel economy, and is competitive in performance, reliability, and potential manufacturing cost with the conventional piston engine powered, standard size American automobile. Major preparations for engine heat balance tests by NASA were completed. EPA laboratories completed Baseline vehicle emissions, noise, and odor tests. Assembly of the program endurance engine is nearing completion. Test cell evaluation of the government furnished combustor (Solar) verified steady state emissions to be extremely low. Initial engine tests of Vendor A ceramic regenerator cores with an elastomeric drive verified performance predictions. Efforts towards developing a non-nickel oxide regenerator seal show extreme sensitivity to porosity differences between cores of different suppliers. All three preprototype integrated control systems were built. Modifications are being worked out to achieve a stable low speed operation. Two prototype compressor turbine wheels made from the reuseable pattern process are being inspected and processed for testing. The engine housing modified for operation at higher cycle temperatures and pressures was received. The baseline engine converted to free rotor is completing test cell check out. The modified vehicle is ready for engine installation. The upgraded engine characterization was updated to include the latest information on V.I.G.V., rotors, and bearings. The upgraded engine housing is being modeled physically and analytically for design and stress studies. An accessory drive system for the upgraded engine was selected, and a final layout is in process.

Schmidt, C.E.

1974-10-31T23:59:59.000Z

439

Baselines for Greenhouse Gas Reductions: Problems, Precedents, Solutions |  

Open Energy Info (EERE)

Baselines for Greenhouse Gas Reductions: Problems, Precedents, Solutions Baselines for Greenhouse Gas Reductions: Problems, Precedents, Solutions Jump to: navigation, search Tool Summary Name: Baselines for Greenhouse Gas Reductions: Problems, Precedents, Solutions Agency/Company /Organization: World Bank Sector: Energy Topics: Baseline projection, GHG inventory, Pathways analysis Resource Type: Publications, Lessons learned/best practices Website: www.p2pays.org/ref/22/21739.pdf References: Baselines for Greenhouse Gas Reductions: Problems, Precedents, Solutions[1] Summary "Rigor in baselines It's important to establish the right degree of rigor in baselining. Overly lax baselines will threaten the system's credibility and usefulness, and shift rents from high quality providers to low quality providers of offsets. Overly stringent baselines will discourage valid projects and

440

Baseline Graphite Initial Mechanical Test Report  

SciTech Connect

The Next Generation Nuclear Plant (NGNP) Project is tasked with selecting a high temperature gas reactor technology that will be capable of generating electricity and supplying large amounts of process heat. The NGNP is presently being designed as a helium-cooled high temperature gas reactor (HTGR) with a large graphite core. The graphite baseline characterization project is conducting the research and development (R&D) activities deemed necessary to fully qualify nuclear-grade graphite for use in the NGNP reactor. One of the major fundamental objectives of the project is establishing nonirradiated thermomechanical and thermophysical properties by characterizing lot-to-lot and billet-to-billet variations (for probabilistic baseline data needs) through extensive data collection and statistical analysis. The reactor core will be made up of stacks of graphite moderator blocks. In order to gain a more comprehensive understanding of the varying characteristics in a wide range of suitable graphites, any of which can be classified as “nuclear grade,” an experimental program has been initiated to develop an extensive database of the baseline characteristics of numerous candidate graphites. Various factors known to affect the properties of graphite will be investigated, including specimen size, spatial location within a graphite billet, specimen orientation within a billet (either parallel to [P] or transverse to [T] the long axis of the as-produced billet), and billet-to-billet variations within a lot or across different production lots. Because each data point is based on a certain position within a given billet of graphite, particular attention must be paid to the traceability of each specimen and its spatial location and orientation within each billet. The evaluation of these properties is discussed in the Graphite Technology Development Plan (Windes et. al 2007). One of the key components in the evaluation of these graphite types will be mechanical testing of specimens drawn from carefully controlled sections of each billet. This report is confirmation that the test procedures are in place and approved, and that mechanical testing of graphite under the Baseline Graphite Characterization program has commenced.

Mark Carroll; Randy Lloyd

2009-09-01T23:59:59.000Z

Note: This page contains sample records for the topic "baseline 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

Solar Energy Resource Basics | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Solar Energy Resource Basics Solar Energy Resource Basics Solar Energy Resource Basics August 21, 2013 - 11:40am Addthis Solar radiation, often called the solar resource, is a general term for the electromagnetic radiation emitted by the sun. Solar radiation can be captured and turned into useful forms of energy, such as heat and electricity, using a variety of technologies. However, the technical feasibility and economical operation of these technologies at a specific location depends on the available solar resource. Basic Principles Every location on Earth receives sunlight at least part of the year. The amount of solar radiation that reaches any one spot on the Earth's surface varies according to: Geographic location Time of day Season Local landscape Local weather. Because the Earth is round, the sun strikes the surface at different

442

Solar Energy Climatology of North Carolina  

Science Conference Proceedings (OSTI)

A solar energy climatology for North Carolina was developed using radiation data from the six SOLMET stations in the state. The climatology provides information needed to design solar powered space and water heating systems, and evaluate their ...

Peter J. Robinson; William E. Easterling

1982-11-01T23:59:59.000Z

443

Active Solar Heating | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

air in an "air collector." Both of these systems collect and absorb solar radiation, then transfer the solar heat directly to the interior space or to a storage system, from which...

444

Mexico - Greenhouse Gas Emissions Baselines and Reduction Potentials from  

Open Energy Info (EERE)

Greenhouse Gas Emissions Baselines and Reduction Potentials from Greenhouse Gas Emissions Baselines and Reduction Potentials from Buildings Jump to: navigation, search Name Mexico - Greenhouse Gas Emissions Baselines and Reduction Potentials from Buildings Agency/Company /Organization United Nations Environment Programme Sector Energy Focus Area Buildings Topics Baseline projection, GHG inventory, Pathways analysis, Background analysis Resource Type Publications Website http://www.unep.org/sbci/pdfs/ Country Mexico Central America References Greenhouse Emissions Baselines and Reduction Potentials for Buildings[1] Mexico - Greenhouse Gas Emissions Baselines and Reduction Potentials from Buildings Screenshot "This report represents the first comprehensive description of the factors that determine the present and future impacts of residential and commercial

445

Analysis of the California solar resource. Volume 3. Appendices  

DOE Green Energy (OSTI)

The following appendices are included: summaries of conferences with solar data users; solar data user questionnaire and sample formats; evaluation of the solar data user questionnaire; remarks stimulated by the solar data user questionnaire; effects of solar data accuracy on the performance and economics of solar energy systems; summary of solar data measurements; reports of site visits to solar data measurement stations; data correction factors; the regionalization of California for solar monitoring; participants at the Solar Data Management Conference, 19 November 1976; and rehabilitation techniques for daily solar radiation data. (MHR)

Berdahl, P.; Grether, D.; Martin, M.; Wahlig, M.

1978-11-01T23:59:59.000Z

446

The Radiative Heating in Underexplored Bands Campaigns  

Science Conference Proceedings (OSTI)

Accurately accounting for radiative energy balance between the incoming solar and the outgoing infrared radiative fluxes is very important in modeling the Earth's climate. Water vapor absorption plays a critical role in the radiative heating rate ...

D. D. Turner; E. J. Mlawer

2010-07-01T23:59:59.000Z

447

Document Number Q0029500 Baseline Risk Assessment Update 4.0 Baseline Risk Assessment Update  

Office of Legacy Management (LM)

Baseline Risk Assessment Update Baseline Risk Assessment Update 4.0 Baseline Risk Assessment Update This section updates the human health and the ecological risk assessments that were originally presented in the 1998 RI (DOE 1998a). The impacts on the 1998 risk assessments are summarized in Section 2.9. 4.1 Human Health Risk Assessment Several activities completed since 1998 have contributed to changes in surface water and ground water concentrations. Activities that have impacted, or likely impacted surface water and ground water concentrations are Millsite Excavation (Section 2.1) Remediation of Soil and Sediment Along Montezuma Creek (Section 2.3) Millsite Dewatering and Treatment (Section 2.5) PRB Treatability Study (Section 2.6) Surface water and ground water monitoring data have been used to refine the list of COCs

448

SOLERAS - Solar Energy Water Desalination Project. Solar Energy Study, Yanbu, Saudi Arabia  

Science Conference Proceedings (OSTI)

Measurements of global and normal incident radiation at the Yanbu, Saudi Arabia solar powered desalination plant site are documented. The use of parabolic, two axis tracking, point focusing solar collectors necessitates the measurement and analysis of the normal incident data. The accuracy of the measuring instruments and the results of analysis of one year solar radiation are briefly discussed. (BCS)

Not Available

1985-01-01T23:59:59.000Z

449

ITi Solar | Open Energy Information  

Open Energy Info (EERE)

ITi Solar ITi Solar Jump to: navigation, search Logo: iTi Solar Name iTi Solar Address 8401 Baseline Road Place Boulder, Colorado Zip 80303 Sector Solar Product Developing thin-film solar that can be printed on an inkjet printer Website http://www.itisolar.com/ Coordinates 40.001628°, -105.157147° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":40.001628,"lon":-105.157147,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

450

NETL - Bituminous Baseline Performance and Cost Interactive Tool | Open  

Open Energy Info (EERE)

NETL - Bituminous Baseline Performance and Cost Interactive Tool NETL - Bituminous Baseline Performance and Cost Interactive Tool Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Bituminous Baseline Performance and Cost Interactive Tool Agency/Company /Organization: National Energy Technology Laboratory Sector: Energy Topics: Baseline projection, GHG inventory Resource Type: Software/modeling tools Website: www.netl.doe.gov/energy-analyses/refshelf/results.asp?ptype=Models/Too References: Bituminous Baseline Performance and Cost Interactive Tool [1] Bituminous Baseline Performance and Cost Interactive Tool The Bituminous Baseline Performance and Cost Interactive Tool illustrates key data from the Cost and Performance Baseline for Fossil Energy Plants - Bituminous Coal and Natural Gas to Electricity report. The tool provides an

451

Grocery 2009 TSD Chicago Baseline | Open Energy Information  

Open Energy Info (EERE)

Type Baseline Model Target Type ASHRAE 90.1 2004 Model Year 2009 IDF file http:apps1.eere.energy.govbuildingsenergyplusmodelsChicago2009TSDGroceryBaseline.idf XML file...

452

Grocery 2009 TSD Miami Baseline | Open Energy Information  

Open Energy Info (EERE)

Type Baseline Model Target Type ASHRAE 90.1 2004 Model Year 2009 IDF file http:apps1.eere.energy.govbuildingsenergyplusmodelsMiami2009TSDGroceryBaseline.idf XML file...

453

Proposed Methodology for LEED Baseline Refrigeration Modeling (Presentation)  

SciTech Connect

This PowerPoint presentation summarizes a proposed methodology for LEED baseline refrigeration modeling. The presentation discusses why refrigeration modeling is important, the inputs of energy models, resources, reference building model cases, baseline model highlights, example savings calculations and results.

Deru, M.

2011-02-01T23:59:59.000Z

454

US Biofuels Baseline and impact of extending the  

E-Print Network (OSTI)

June 2011 US Biofuels Baseline and impact of extending the $0.45 ethanol blenders baseline projections for agricultural and biofuel markets.1 That baseline assumed current biofuel policy for cellulosic biofuels was assumed to expire at the end of 2012. This report compares a slightly modified

Noble, James S.

455

Low Emittance and Solar Control Glazing  

NLE Websites -- All DOE Office Websites (Extended Search)

Emittance and Solar-Control Glazing Low-emittance coatings have a high reflectance in the thermal infrared suppressing infrared radiation transfer thereby imparting additional...

456

SOLERAS - Saudi University Solar Cooling Laboratories Project: University of Riyadh. Solar air conditioning. Final report  

Science Conference Proceedings (OSTI)

Research on solar air conditioning at the University of Riyadh in Riyhadh, Saudi Arabia is presented. Topics relevant to the university's proposed solar cooling laboratory are discussed: absorption systems and various contingencies, photovoltaic solar collectors and thermoelectric elements, measuring instruments, solar radiation measurement and analysis, laboratory specifications, and decision theories. Dual cycle computations and equipment specifications are included among the appendices.

Not Available

1986-01-01T23:59:59.000Z

457

Long Baseline Neutrino Beams and Large Detectors  

SciTech Connect

It is amazing to acknowledge that in roughly 70 years from when the existence of the neutrino was postulated, we are now contemplating investigating the mysteries of this particle (or particles) requiring and utilizing detectors of 300 ktons , distances of 1,000-2,000 kilometers, beam intensities of megawatts and underground depth of 5,000 feet. This evolution has evolved slowly, from the experimental discovery of the neutrino in 1956, to the demonstration that there were two neutrinos in 1962 and three and only three by 1991. The great excitement occurred in the 2000's coming from the study of solar and atmospheric neutrinos in which neutrinos were observed to oscillate and therefore have mass. Although the absolute mass of any of the neutrinos has yet to be determined (the upper limit is less than I electron volt) the difference in this square of these masses has been measured, yielding a value of (2.3 {+-} .2) 10{sup -3} ev{sup 2} for atmospheric neutrinos and (7.6 {+-} .2) 10{sup -5} ev{sup 2} for solar neutrinos. In addition their mixing angles were found to be 45{sup o} for atmospheric neutrinos and 34{sup o} for solar neutrinos. This present state of knowledge on neutrinos is pictorially displayed in Fig. 1. Of course, mixing between flavors had already been observed in the quark sector as exemplified by the Cabbibo-Kobayashi-Meskawa Matrix. It was therefore natural to extend this formalism to the lepton sector involving unitary 3 x 3 matrices and one CP violating phase. This is shown in Fig. 2 for the two sectors, quark and leptons including the Jarlskog invariant (J).

Samios,N.P.

2008-10-27T23:59:59.000Z

458

MEASUREMENT AND ANALYSIS OF CIRCUMSOLAR RADIATION  

E-Print Network (OSTI)

solar and circumsolar radiation vs angular distance from the center of the sun)solar radiation (that originating from the disk of the sun)solar constant of 1367 W/m and then corrected for the actual earth-sun

Grether, D.F.

2013-01-01T23:59:59.000Z

459

Cloud Geometry Effects on Atmospheric Solar Absorption  

Science Conference Proceedings (OSTI)

A 3D broadband solar radiative transfer scheme is formulated by integrating a Monte Carlo photon transport algorithm with the Fu–Liou radiation model. It is applied to fields of tropical mesoscale convective clouds and subtropical marine boundary ...

Qiang Fu; M. C. Cribb; H. W. Barker; S. K. Krueger; A. Grossman

2000-04-01T23:59:59.000Z

460

A Two-Dimensional Radiation-Turbulence Climate Model. I: Sensitivity to Cirrus Radiative Properties  

Science Conference Proceedings (OSTI)

Based on the thermodynamic energy balance between radiation and vertical plus horizontal dynamic transports, a two-dimensional radiation-turbulence climate model is developed. This model consists of a broadband solar and IR radiation transfer ...

Szu-Cheng S. Ou; Kuo-Nan Liou

1984-08-01T23:59:59.000Z

Note: This page contains sample records for the topic "baseline 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

1980 Active-Solar Installations Survey  

SciTech Connect

The survey covers active solar installations made during and prior to calendar year 1980. As the first survey of active solar installations in the United States, the objective was to establish a national baseline information system that could provide current data on residential and commercial active solar installations as well as a listing of firms involved in the active solar industry, including installers. Potential respondents were identified from regional lists of solar equipment dealers and installers compiled by each Regional Solar Energy Center (RSEC). The RSEC lists were computerized and combined into a mailing list of 5466 company names and addresses. An additional 1619 referrals, were provided by survey respondents from the RSEC list. However, because of resource constraints, 981 of these referrals were not included in the survey. To substantiate that the results of this survey represent accurate statistics on the number of active solar installations in the United States, a comparison was made to the Solar Collector Manufacturing Survey installations. (PSB)

1982-10-01T23:59:59.000Z

462

NREL: Concentrating Solar Power Research - Concentrating Solar Power  

NLE Websites -- All DOE Office Websites (Extended Search)

Concentrating Solar Power Resource Maps Concentrating Solar Power Resource Maps These direct-normal solar radiation maps-filtered by solar resource and land availability-identify the most economically suitable lands available for deploying of large-scale concentrating solar power plants in the southwestern United States. Each of the following seven states, as well as the southwestern U.S. region, has two maps: the left and right maps represent analyses excluding land with slopes >1% and >3%, respectively. Lower-resolution jpg versions are available below; much higher-resolution pdf files, suitable for plotting large-scale posters, can be requested. You can also access an unfiltered direct-normal solar radiation map of the southwestern United States. Download Adobe Reader. Southwestern U.S.

463

LTC vacuum blasting machine (metal): Baseline report  

SciTech Connect

The LTC coating removal technology was tested and is being evaluated at Florida International University (FIU) as a baseline technology. In conjunction with evaluation of efficiency and cost, this report covers the evaluation conducted for safety and health issues. It is a commercially available technology and has been used for various projects at locations throughout the country. The LTC coating removal system consisted of several hand tools, a Roto Peen scaler, and a needlegun. They are designed to remove coatings from steel, concrete, brick, and wood. These hand tools are used with the LTC PTC-6 vacuum system to capture dust and debris as removal of the coating takes place. The safety and health evaluation during the testing demonstration focused on two main areas of exposure: dust and noise. The dust exposure was minimal but noise exposure was significant. Further testing for each exposure is recommended because of the environment where the testing demonstration took place. It is feasible that the dust and noise levels will be higher in an enclosed operating environment of different construction. In addition, other areas of concern found were arm-hand vibration, whole-body vibration, ergonomics, heat stress, tripping hazards, electrical hazards, machine guarding, and lockout/tagout.

1997-07-31T23:59:59.000Z

464

LTC vacuum blasting machine (concrete): Baseline report  

SciTech Connect

The LTC shot blast technology was tested and is being evaluated at Florida International University (FIU) as a baseline technology. In conjunction with FIU`s evaluation of efficiency and cost, this report covers the evaluation conducted for safety and health issues. It is a commercially available technology and has been used for various projects at locations throughout the country. The LTC 1073 Vacuum Blasting Machine uses a high-capacity, direct-pressure blasting system which incorporates a continuous feed for the blast media. The blast media cleans the surface within the contained brush area of the blast. It incorporates a vacuum system which removes dust and debris from the surface as it is blasted. The safety and health evaluation during the testing demonstration focused on two main areas of exposure: dust and noise. Dust exposure during maintenance activities was minimal, but due to mechanical difficulties dust monitoring could not be conducted during operation. Noise exposure was significant. Further testing for each of these exposures is recommended because of the outdoor environment where the testing demonstration took place. This may cause the results to be inaccurate. It is feasible that the dust and noise levels will be higher in an enclosed environment. In addition, other safety and health issues found were ergonomics, heat stress, tripping hazards, electrical hazards, lockout/tagout, and arm-hand vibration.

1997-07-31T23:59:59.000Z

465

Gated integrator with signal baseline subtraction  

DOE Patents (OSTI)

An ultrafast, high precision gated integrator includes an opamp having differential inputs. A signal to be integrated is applied to one of the differential inputs through a first input network, and a signal indicative of the DC offset component of the signal to be integrated is applied to the other of the differential inputs through a second input network. A pair of electronic switches in the first and second input networks define an integrating period when they are closed. The first and second input networks are substantially symmetrically constructed of matched components so that error components introduced by the electronic switches appear symmetrically in both input circuits and, hence, are nullified by the common mode rejection of the integrating opamp. The signal indicative of the DC offset component is provided by a sample and hold circuit actuated as the integrating period begins. The symmetrical configuration of the integrating circuit improves accuracy and speed by balancing out common mode errors, by permitting the use of high speed switching elements and high speed opamps and by permitting the use of a small integrating time constant. The sample and hold circuit substantially eliminates the error caused by the input signal baseline offset during a single integrating window.

Wang, Xucheng (Lisle, IL)

1996-01-01T23:59:59.000Z

466

Gated integrator with signal baseline subtraction  

DOE Patents (OSTI)

An ultrafast, high precision gated integrator includes an opamp having differential inputs. A signal to be integrated is applied to one of the differential inputs through a first input network, and a signal indicative of the DC offset component of the signal to be integrated is applied to the other of the differential inputs through a second input network. A pair of electronic switches in the first and second input networks define an integrating period when they are closed. The first and second input networks are substantially symmetrically constructed of matched components so that error components introduced by the electronic switches appear symmetrically in both input circuits and, hence, are nullified by the common mode rejection of the integrating opamp. The signal indicative of the DC offset component is provided by a sample and hold circuit actuated as the integrating period begins. The symmetrical configuration of the integrating circuit improves accuracy and speed by balancing out common mode errors, by permitting the use of high speed switching elements and high speed opamps and by permitting the use of a small integrating time constant. The sample and hold circuit substantially eliminates the error caused by the input signal baseline offset during a single integrating window. 5 figs.

Wang, X.

1996-12-17T23:59:59.000Z

467

Pentek metal coating removal system: Baseline report  

SciTech Connect

The Pentek coating removal technology was tested and is being evaluated at Florida International University (FIU) as a baseline technology. In conjunction with FIU`s evaluation of efficiency and cost, this report covers evaluation conducted for safety and health issues. It is a commercially available technology and has been used for various projects at locations throughout the country. The Pentek coating removal system consisted of the ROTO-PEEN Scaler, CORNER-CUTTER{reg_sign}, and VAC-PAC{reg_sign}. They are designed to remove coatings from steel, concrete, brick, and wood. The Scaler uses 3M Roto Peen tungsten carbide cutters while the CORNER-CUTTER{reg_sign} uses solid needles for descaling activities. These hand tools are used with the VAC-PAC{reg_sign} vacuum system to capture dust and debris as removal of the coating takes place. The safety and health evaluation during the testing demonstration focused on two main areas of exposure: dust and noise. Dust exposure minimal, but noise exposure was significant. Further testing for each exposure is recommended because of the environment where the testing demonstration took place. It is feasible that the dust and noise levels will be higher in an enclosed operating environment of different construction. In addition, other areas of concern found were arm-hand vibration, whole-body, ergonomics, heat stress, tripping hazards, electrical hazards, machine guarding, and lockout/tagout.

1997-07-31T23:59:59.000Z

468

Computing Solar Absolute Fluxes  

E-Print Network (OSTI)

Computed color indices and spectral shapes for individual stars are routinely compared with observations for essentially all spectral types, but absolute fluxes are rarely tested. We can confront observed irradiances with the predictions from model atmospheres for a few stars with accurate angular diameter measurements, notably the Sun. Previous calculations have been hampered by inconsistencies and the use of outdated atomic data and abundances. I provide here a progress report on our current efforts to compute absolute fluxes for solar model photospheres. Uncertainties in the solar composition constitute a significant source of error in computing solar radiative fluxes.

Prieto, Carlos Allende

2007-01-01T23:59:59.000Z

469

Solar Thermal Conversion  

DOE Green Energy (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

470

Computing Solar Absolute Fluxes  

E-Print Network (OSTI)

Computed color indices and spectral shapes for individual stars are routinely compared with observations for essentially all spectral types, but absolute fluxes are rarely tested. We can confront observed irradiances with the predictions from model atmospheres for a few stars with accurate angular diameter measurements, notably the Sun. Previous calculations have been hampered by inconsistencies and the use of outdated atomic data and abundances. I provide here a progress report on our current efforts to compute absolute fluxes for solar model photospheres. Uncertainties in the solar composition constitute a significant source of error in computing solar radiative fluxes.

Carlos Allende Prieto

2007-09-14T23:59:59.000Z

471

Influence of Extraterrestrial Radiation on Radiation Portal Monitors  

Science Conference Proceedings (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

472

ARM - Datastreams - bsrn  

NLE Websites -- All DOE Office Websites (Extended Search)

Solar Radiation Network (BSRN): solar irradiances Active Dates 1993.07.01 - 2001.01.22 Measurement Categories Radiometric Originating Instrument Baseline Solar Radiation Network...

473

NREL: TroughNet - Parabolic Trough Technology Solar Resource Data and Tools  

NLE Websites -- All DOE Office Websites (Extended Search)

Solar Resource Data and Tools Solar Resource Data and Tools Here you'll find resources on solar radiation data and tools for siting parabolic trough power plants. This includes solar radiation data for power plants in the United States and worldwide. You'll also find resources for direct solar radiation instrumentation. For an overview on solar resource terms and direct beam radiation used for concentrating solar power technologies, see NREL's Shining On Web site. U.S. Solar Radiation Resource Data The following resources include maps, and hourly metrological and solar resource data for parabolic trough power plants sites in the United States. NREL Concentrating Solar Power Resource Maps Features direct normal solar radiation maps of the southwestern United States, including state maps for Arizona, California, Colorado, New Mexico,

474

Energy Basics: Solar Energy Resources  

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

emitted by the sun. Solar radiation can be captured and turned into useful forms of energy, such as heat and electricity, using a variety of technologies. However, the technical...

475

100-D Area technical baseline report  

Science Conference Proceedings (OSTI)

This document is prepared in support of the 100 Area Environmental Restoration activity at the US Department of Energy`s Hanford Site near Richland, Washington. It provides a technical baseline of waste sites located at the 100-D Area. The report is based on an environmental investigation undertaken by the Westinghouse Hanford Company (WHC) History Office in support of the Environmental Restoration Engineering Function and on review and evaluation of numerous Hanford Site current and historical reports, drawings, and photographs, supplemented by site inspections and employee interviews. No intrusive field investigation or sampling was conducted. All Hanford coordinate locations are approximate locations taken from several different maps and drawings of the 100-D Area. Every effort was made to derive coordinate locations for the center of each facility or waste site, except where noted, using standard measuring devices. Units of measure are shown as they appear in reference documents. The 100-D Area is made up of three operable units: 100-DR-1, 100-DR-2, and 100-DR-3. All three are addressed in this report. These operable units include liquid and solid waste disposal sites in the vicinity of, and related to, the 100-D and 100-DR Reactors. A fourth operable unit, 100-HR-3, is concerned with groundwater and is not addressed here. This report describes waste sites which include cribs, trenches, pits, french drains, retention basins, solid waste burial grounds, septic tanks, and drain fields. Each waste site is described separately and photographs are provided where available. A complete list of photographs can be found in Appendix A. A comprehensive environmental summary is not provided here but may be found in Hanford Site National Environmental Policy Act Characterization (Cushing 1988), which describes the geology and soils, meteorology, hydrology, land use, population, and air quality of the area.

Carpenter, R.W.

1993-08-20T23:59:59.000Z

476

South Africa - Greenhouse Gas Emission Baselines and Reduction Potentials  

Open Energy Info (EERE)

Africa - Greenhouse Gas Emission Baselines and Reduction Potentials Africa - Greenhouse Gas Emission Baselines and Reduction Potentials from Buildings Jump to: navigation, search Name South Africa - Greenhouse Gas Emission Baselines and Reduction Potentials from Buildings Agency/Company /Organization United Nations Environment Programme Sector Energy Focus Area Buildings Topics Baseline projection, GHG inventory, Pathways analysis, Background analysis Resource Type Publications Website http://www.unep.org/sbci/pdfs/ Country South Africa UN Region Southern Africa References South Africa - Greenhouse Gas Emission Baselines and Reduction Potentials from Buildings[1] South Africa - Greenhouse Gas Emission Baselines and Reduction Potentials from Buildings Screenshot "This report aims to provide: a summary quantification of the influence of buildings on climate

477

NREL: Solar Radiation Research - Webmaster  

NLE Websites -- All DOE Office Websites (Extended Search)

Webmaster Use this form to send us your comments and questions, report problems with the site, or ask for help finding information on the site. Please enter your name and email...

478

ProgramTopics Baseline projection | Open Energy Information  

Open Energy Info (EERE)

Next (20 | 50 | 100 | 250 | 500) Africa-Economic Development Report 2010 + Baselines for Greenhouse Gas Reductions: Problems, Precedents, Solutions + Bottom-Up Energy Analysis...

479

NETL: Energy Analyses - Cost and Performance Baseline for Fossil...  

NLE Websites -- All DOE Office Websites (Extended Search)

Energy Analyses Cost and Performance Baselines for Fossil Energy Plants Overview The studies listed on this page establish estimates for the cost and performance of combustion and...

480

California Baseline Energy Demands to 2050 for Advanced Energy Pathways  

E-Print Network (OSTI)

for baseline scenario. Climate zone Electricity planningarea Natural gas planning area Climate zone1 Climate zone 2 Pacific Gas & Electric Climate zone 3 (

McCarthy, Ryan; Yang, Christopher; Ogden, Joan M.

2008-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "baseline 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.


481

Atlantic NAD 83 SLA Baseline Tangents | Data.gov  

NLE Websites -- All DOE Office Websites (Extended Search)

SLA Baseline Tangents Ocean Data Tools Technical Guide Map Gallery Regional Planning Feedback Ocean You are here Data.gov Communities Ocean Data Atlantic NAD 83 SLA...

482

Baseline Characteristics of the 2002-2004 Nonresidential Sector...  

NLE Websites -- All DOE Office Websites (Extended Search)

Alliance study intended to improve understanding of the new commercial building stock in the Pacific Northwest region. It provided a new regional baseline for practices in...

483

UNFCCC-Consolidated baseline and monitoring methodology for landfill...  

Open Energy Info (EERE)

Facebook icon Twitter icon UNFCCC-Consolidated baseline and monitoring methodology for landfill gas project activities Jump to: navigation, search Tool Summary LAUNCH TOOL Name:...

484

Solar Flares STFC Advanced Summer School  

E-Print Network (OSTI)

Solar Flares STFC Advanced Summer School in Solar Physics H. S. Hudson Space Sciences Laboratory University of California, Berkeley and University of Glasgow Glasgow Summerschool 2011 Part 1: Introduction · A solar flare is, strictly speaking, the electromagnetic radiation from a coronal magnetic energy release

California at Berkeley, University of

485

The New England solar energy atlas  

SciTech Connect

This book offers a convenient source of historical solar radiation data excerpted from the Solar Radiation Energy Resource Atlas of the United States. The collection of regional maps and the graphic summaries of the resource data pertinent to the New England area accomplish the author's goal of providing design data in a more compact format than that of the national atlas.

Cook, D.L.

1986-01-01T23:59:59.000Z

486

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

487

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

488

Spent Nuclear Fuel Project technical baseline document. Fiscal year 1995: Volume 1, Baseline description  

SciTech Connect

This document is a revision to WHC-SD-SNF-SD-002, and is issued to support the individual projects that make up the Spent Nuclear Fuel Project in the lower-tier functions, requirements, interfaces, and technical baseline items. It presents results of engineering analyses since Sept. 1994. The mission of the SNFP on the Hanford site is to provide safety, economic, environmentally sound management of Hanford SNF in a manner that stages it to final disposition. This particularly involves K Basin fuel, although other SNF is involved also.

Womack, J.C. [Westinghouse Hanford Co., Richland, WA (United States); Cramond, R. [TRW (United States); Paedon, R.J. [SAIC (United States)] [and others

1995-03-13T23:59:59.000Z

489

Solar mass-varying neutrino oscillations  

E-Print Network (OSTI)

We propose that the solar neutrino deficit may be due to oscillations of mass-varying neutrinos (MaVaNs). This scenario elucidates solar neutrino data beautifully while remaining comfortably compatible with atmospheric neutrino and K2K data and with reactor antineutrino data at short and long baselines (from CHOOZ and KamLAND). We find that the survival probability of solar MaVaNs is independent of how the suppression of neutrino mass caused by the acceleron-matter couplings varies with density. Measurements of MeV and lower energy solar neutrinos will provide a rigorous test of the idea.

V. Barger; Patrick Huber; Danny Marfatia

2005-02-21T23:59:59.000Z

490

Solar heat regulator  

Science Conference Proceedings (OSTI)

A solar heat regulating device is described for selectively heating with sunlight the air inside a building having a window and shielding and insulating the air inside the building from the heat of sunlight outside the building including: a frame for mounting the solar heat regulating device inside the building and adjacent to the window; a plurality of hollow vanes, each of the vanes having at least one passageway for passing air therethrough; the vanes having a heat absorptive surface on a first side thereof which allows solar radiation impinging on the heat absorptive surface to heat the air contained in the one passageway of the vanes; the vanes having a heat reflective surface on a second side of the vanes which reflects the solar radiation impinging on the second side of the vanes and shields the inside of the building from solar radiation impinging on the vanes; and the vanes having side portions extending between the first and second sides of the vanes, the side portions, and the first and second sides forming the one passageway through each of the vanes, the side portions and the first and second sides of the vanes terminating in top end and bottom end portions.

Boynton, S.L.

1987-04-07T23:59:59.000Z

491

Spectral converters and luminescent solar concentrators  

E-Print Network (OSTI)

In this paper we present a comprehensive theoretical description of molecular spectral converters in the specific context of Luminescent Solar Concentrators (LSCs). The theoretical model is an extension to a three-level system interacting with a solar radiation bath of the standard quantum theory of atomic radiative processes. We derive the equilibrium equations of the conversion process and provide specific examples of application of this principle to the development of solar concentration devices.

Petra F. Scudo; Luigi Abbondanza; Roberto Fusco

2009-07-21T23:59:59.000Z

492

Efficiency of luminescence in luminescent solar concentrators  

Science Conference Proceedings (OSTI)

The power effiency of luminescence excited by solar radiation in luminescent solar collectors is calculated for a glass sheet doped with CR/sup 3 +/. The achievable chemical potential for an optically thick absorber irradiated by diluted blackbody radiation as a function of Cr/sup 3 +/ concentration, sheet thickness, sunlight dilution, and luminescence quantum yield leads directly to overall conversion efficiency of solar power to luminescence power.

Lempicki, A.

1983-04-15T23:59:59.000Z

493

Spectral converters and luminescent solar concentrators  

E-Print Network (OSTI)

In this paper we present a comprehensive theoretical description of molecular spectral converters in the specific context of Luminescent Solar Concentrators (LSCs). The theoretical model is an extension to a three-level system interacting with a solar radiation bath of the standard quantum theory of atomic radiative processes. We derive the equilibrium equations of the conversion process and provide specific examples of application of this principle to the development of solar concentration devices.

Scudo, Petra F; Fusco, Roberto

2009-01-01T23:59:59.000Z

494

Solar Decathlon  

NLE Websites -- All DOE Office Websites (Extended Search)

U.S. Department of Energy Solar Decathlon Sara Farrar-Nagy National Renewable Energy Laboratory sara.farrar-nagy@nrel.gov, 303-384-7514 April 3, 2013 Solar Decathlon 2009 Solar...

495

Solar Easements  

Energy.gov (U.S. Department of Energy (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...

496

Baseline Carbon Storage, Carbon Sequestration, and Greenhouse-Gas  

E-Print Network (OSTI)

Baseline Carbon Storage, Carbon Sequestration, and Greenhouse-Gas Fluxes in Terrestrial Ecosystems, and Benjamin M. Sleeter Chapter 5 of Baseline and Projected Future Carbon Storage and Greenhouse-Gas Fluxes, carbon sequestration, and greenhouse-gas fluxes in terrestrial ecosystems of the Western United States

Fleskes, Joe

497

THE DEVELOPMENT OF A 1990 INDUSTRIAL ENERGY USE BASELINE  

E-Print Network (OSTI)

to determine total energy consumption for that industry. However, if specific energy intensities per unit consumption, and emissions generated by energy consumption, a comprehensive, baseline data set of industrial branches of Canadian industry, forms the goal of this report. An adequate baseline energy consumption

498

The Microbase Value-Added Product: A Baseline Retrieval of Cloud Microphysical Properties  

SciTech Connect

This report describes the Atmospheric Radiation Measurement (ARM) Climate Research Facility baseline cloud microphysical properties (MICROBASE) value-added product (VAP). MICROBASE uses a combination of millimeter-wavelength cloud radar, microwave radiometer, and radiosonde observations to estimate the vertical profiles of the primary microphysical parameters of clouds including the liquid/ice water content and liquid/ice cloud particle effective radius. MICROBASE is a baseline algorithm designed to apply to most conditions and locations using a single set of parameterizations and a simple determination of water phase based on temperature. This document provides the user of this product with guidelines to assist in determining the accuracy of the product under certain conditions. Quality control flags are designed to identify outliers and indicate instances where the retrieval assumptions may not be met. The overall methodology is described in this report through a detailed description of the input variables, algorithms, and output products.

Dunn, M; Johnson, K; Jensen, M

2011-05-31T23:59:59.000Z

499

South Africa-Danish Government Baseline Workstream | Open Energy  

Open Energy Info (EERE)

Danish Government Baseline Workstream Danish Government Baseline Workstream Jump to: navigation, search Name South Africa-Danish Government Baseline Workstream Agency/Company /Organization Danish Government Partner Danish Ministry for Climate, Energy, and Building; The Danish Energy Agency Sector Energy Topics Implementation, Low emission development planning Program Start 2011 Country South Africa Southern Africa References Denmark[1] Overview Progress and Outcomes Capacity building needs identified are lessons learned, challenges and gaps, including those that may be common between countries, and aspects of good practice for assumptions, methodologies and other aspects of baseline setting. References ↑ "Denmark" Retrieved from "http://en.openei.org/w/index.php?title=South_Africa-Danish_Government_Baseline_Workstream&oldid=699933"

500

Thailand-Danish Government Baseline Workstream | Open Energy Information  

Open Energy Info (EERE)

Thailand-Danish Government Baseline Workstream Thailand-Danish Government Baseline Workstream Jump to: navigation, search Name Thailand-Danish Government Baseline Workstream Agency/Company /Organization Danish Government Partner Danish Ministry for Climate, Energy, and Building; The Danish Energy Agency Sector Energy Topics Implementation, Low emission development planning Program Start 2011 Country Thailand South-Eastern Asia References Denmark[1] Overview Progress and Outcomes Capacity building needs identified are lessons learned, challenges and gaps, including those that may be common between countries, and aspects of good practice for assumptions, methodologies and other aspects of baseline setting. References ↑ "Denmark" Retrieved from "http://en.openei.org/w/index.php?title=Thailand-Danish_Government_Baseline_Workstream&oldid=699937