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Screening analysis of solar thermochemical hydrogen concepts.

Description: A screening analysis was performed to identify concentrating solar power (CSP) concepts that produce hydrogen with the highest efficiency. Several CSP concepts were identified that have the potential to be much more efficient than today's low-temperature electrolysis technology. They combine a central receiver or dish with either a thermochemical cycle or high-temperature electrolyzer that operate at temperatures >600 C. The solar-to-hydrogen efficiencies of the best central receiver concepts exceed 20%, significantly better than the 14% value predicted for low-temperature electrolysis.
Date: March 1, 2008
Creator: Diver, Richard B., Jr. & Kolb, Gregory J.
Partner: UNT Libraries Government Documents Department

Study of Hanford capability for solar energy research and development

Description: The Hanford site provides unique capability for solar energy research and development. The basic attributes include large available land areas; consistent sunshine during much of the year (although not comparable to Arizona and the southwest U. S.); ex- treme temperatures for test purposes (--27 to 115 F); cooling water availability; ecology approximating ecology in some other solar areas; RgD facilities applicable to most solar technology; equipment immediately useful for solar energy programs; technology background in most areas of solar energy; experience with large energy systems, and background in systems analysis. From the solar energy production standpoint, the energy that falls on the 600 square miles at the Hanford site would produce 100,000 megawatts if 33 1/3% efficiency can be achieved. (MCW)n
Date: November 1, 1973
Creator: Drumheller, K.
Partner: UNT Libraries Government Documents Department

SERI Information Data Bank Network

Description: The availability of accurate, timely information will be an important key in the continued spread of solar energy. The products and services available through the Solar Energy Information Data Bank, a national information network developed and operated by Solar Energy Research Institute with the participation of member organization, are described.
Date: February 1, 1980
Creator: Ubico, R.E.
Partner: UNT Libraries Government Documents Department

Putting the sun to work in industry

Description: Industrial applications of solar energy are discussed in this illustrated brochure along with the DOE and SERI industrial process heat field test programs. The future prospects and advantages of solar industrial process heat are also discussed. (MHR)
Date: September 1, 1979
Partner: UNT Libraries Government Documents Department

Sitewide Environmental Assessment for the National Renewable Energy Laboratory, Golden, Colorado

Description: The Solar Energy Research, Development, and Demonstration Act of 1974 authorized a federal program to develop solar energy as a viable source of the nation`s future energy needs. Under this authority, the National Renewable Energy Laboratory (NREL) was created as a laboratory of the Department of Energy (DOE) to research a number of renewable energy possibilities. The laboratory conducts its operations both in government-owned facilities on the NREL South Table Mountain (STM) Site near Golden, Colorado, and in a number of leased facilities, particularly the Denver West Office Park. NREL operations include research in energy technologies, and other areas of national environmental and energy technology interest. Examples of these technologies include electricity from sunlight with solar cells (photovoltaics); energy from wind (windmills or wind turbines); conversion of plants and plant products (biomass) into liquid fuels (ethanol and methanol); heat from the sun (solar thermal) in place of wood, oil, gas, coal and other forms of heating; and solar buildings. NREL proposes to continue and expand the present R&D efforts in C&R energy by making infrastructure improvements and constructing facilities to eventually consolidate the R&D and associated support activities at its STM Site. In addition, it is proposed that operations continue in current leased space at the present levels of activity until site development is complete. The construction schedule proposed is designed to develop the site as rapidly as possible, dependent on Congressional funding, to accommodate not only the existing R&D that is being conducted in leased facilities off-site but to also allow for the 20-year projected growth. Impacts from operations currently conducted off-site are quantified and added to the cumulative impacts of the STM site. This environmental assessment provides information to determine the severity of impacts on the environment from the proposed action.
Date: May 4, 1993
Partner: UNT Libraries Government Documents Department

Novel two-stage selenization methods for fabrication of thin-film CIS cells and submodules. Annual subcontract report, 25 March 1992--28 February 1993

Description: This is the Phase 1 Annual Technical Progress Report of a subcontract titled {open_quotes}Novel Two-Stage Selenization Methods for Fabrication of Thin-Film CIS Cells and Submodules.{close_quotes} The objectives of the program are the development of a cost effective process for CIS film deposition, optimization of various layers forming the CIS solar cell and fabrication of submodules using these processes and devices. During this first phase of the program the authors have completed their 1 ft{sup 2} size processing capabilities and added to their facilities an in-line sputtering system that can handle up to 1 ft{sup 2} size substrates. They have optimized the sputtering conditions for the Mo contact as well as the Cu and In films. Thickness uniformity of the Cu and In layers have also been optimized by masking the magnetron cathodes to obtain a variation of 3% throughout a ft{sup 2} substrate. Using the resulting films, they have demonstrated their first large area CIS submodules with outputs of about 3W/ft{sup 2}. Addition of a computer controlled mechanical scriber to the fabrication facilities, and optimization of the large-area ZnO layers are expected to improve the power output of these submodules to over 5W/ft{sup 2} shortly. In addition to the large-area submodule work, the authors have also carried out research aimed at the development of a non-vacuum processing approach for the growth of CIS layers. They have deposited films using this technique, and small-area cells with over 10% conversion efficiency have been demonstrated on such CIS layers.
Date: October 1, 1993
Creator: Basol, B. M.; Kapur, V. K.; Halani, A. & Leidholm, C.
Partner: UNT Libraries Government Documents Department

Highlighting High Performance: The Solar Energy Research Facility, Golden, Colorado

Description: The National Renewable Energy Laboratory's Solar Energy Research Facility in Golden, Colorado, uses a stair-step configuration to allow daylight and heat into the office areas, while the laboratories in the back of the building are in a more controlled environment where tight levels of ventilation, humidity, temperature, and light are critical. A unique mechanical system makes the most of the natural environment and the building's design to efficiently heat and cool the building at an annual utility bill savings of almost $200,000 per year.
Date: June 26, 2001
Creator: Torcellini, P. & Epstein, K.
Partner: UNT Libraries Government Documents Department

Development of nanostructured and surface modified semiconductors for hybrid organic-inorganic solar cells.

Description: Solar energy conversion is increasingly being recognized as one of the principal ways to meet future energy needs without causing detrimental environmental impact. Hybrid organic-inorganic solar cells (SCs) are attracting particular interest due to the potential for low cost manufacturing and for use in new applications, such as consumer electronics, architectural integration and light-weight sensors. Key materials advantages of these next generation SCs over conventional semiconductor SCs are in design opportunities--since the different functions of the SCs are carried out by different materials, there are greater materials choices for producing optimized structures. In this project, we explore the hybrid organic-inorganic solar cell system that consists of oxide, primarily ZnO, nanostructures as the electron transporter and poly-(3-hexylthiophene) (P3HT) as the light-absorber and hole transporter. It builds on our capabilities in the solution synthesis of nanostructured semiconducting oxide arrays to this photovoltaic (PV) technology. The three challenges in this hybrid material system for solar applications are (1) achieving inorganic nanostructures with critical spacing that matches the exciton diffusion in the polymer, {approx} 10 nm, (2) infiltrating the polymer completely into the dense nanostructure arrays, and (3) optimizing the interfacial properties to facilitate efficient charge transfer. We have gained an understanding and control over growing oriented ZnO nanorods with sub-50 nm diameters and the required rod-to-rod spacing on various substrates. We have developed novel approaches to infiltrate commercially available P3HT in the narrow spacing between ZnO nanorods. Also, we have begun to explore ways to modify the interfacial properties. In addition, we have established device fabrication and testing capabilities at Sandia for prototype devices. Moreover, the control synthesis of ZnO nanorod arrays lead to the development of an efficient anti-reflection coating for multicrystalline Si solar cells. An important component of this project is the collaboration with Dr. Dave Ginley's group at NREL. The ...
Date: September 1, 2008
Creator: Hsu, Julia, W. P.
Partner: UNT Libraries Government Documents Department

Organizational Cultural Assessment of the Solar Energy Research Institute

Description: An Organizational Cultural Assessment (OCA) was performed at the Solar Energy Research Institute (SERI) by administering an Organizational Culture Survey (OCS) that queried employees on the subjects of organizational culture, various aspects of communications, employee commitment, work group cohesion, coordination of work, environmental concerns, hazardous nature of work, safety and overall job satisfaction. The purpose of the OCS is to measure in a quantitative and objective way the notion of culture;'' that is, the values, attitudes, and beliefs of the individuals working within the organization. In addition, through the OCS, a broad simple of individuals can be reached that would probably not be interviewed or observed during the course of a typical assessment. The OCS also provides a descriptive profile of the organization at one point in time that can then be compared to a profile taken at a different point in time to assess changes in the culture of the organization. All data from the OCS is presented in group summaries, by division, supervisory level, and staff classification. Statistically significant differences between groups are identified and discussed. The most notable finding which emerges from the OCA conducted at SERI is that it is a very homogeneous organization as indicated by the few statistically significant differences found between divisions/offices, staff classifications, and supervisory levels. The results also indicate SERI to be an organization which places a large amount of emphasis on those behaviors which are considered constructive'' (i.e., Humanistic-Encouraging, Affiliative, Achievement, Self-Actualizing) and, although to a lesser extent, on those behaviors which could be regarded as passive/defensive'' (i.e., Approval, Conventional, Dependent, Avoidance). 9 refs., 11 figs., 6 tabs.
Date: June 1, 1991
Creator: none,
Partner: UNT Libraries Government Documents Department

The high cost of low quality in R D (research and development)

Description: The principles of quality assurance and quality control yield high payoffs when applied to research activities. Researchers are usually highly motivated individuals who earnestly desire to produce excellent results. The nature of research and the temperament of researchers are such that considerable freedom and latitude are usually required so that the creative processes are not impeded. These are approaches that can be used in applying quality assurance and control that researchers will accept and use when they see the payoff. Some examples are given, with particular emphasis on quality cost systems applied to measurement processes in R D. 14 refs.
Date: October 1, 1990
Creator: Wells, C.V.
Partner: UNT Libraries Government Documents Department

Accelerated commercialization program for materials and components. Solar sheet glass: an example of materials commercialization

Description: The SERI Accelerated Commercialization Program for Materials and Components is designed to serve as a catalyst in promoting technological change through the introduction of new materials into solar technologies. This report focuses on technological diffusion of advances in materials technology from the developer to the manufacturers of solar equipment. It provides an overview and understanding of the problems encountered in the private sector in trying to advance technological change and discusses a program designed to facilitate this change. Using as example of solar sheet glass, this report describes the process by which sample quantities of new materials are sent to solar equipment manufacturers for appliations testing. It also describes other materials that might undergo testing in a similar way. The entire program is an example of how government and industry can work together to accomplish common goals.
Date: March 1, 1980
Creator: Livingston, R. & Butler, B.
Partner: UNT Libraries Government Documents Department

SERI DOE-2 solar simulator study

Description: The Solar Energy Research Institute's (SERI) analysis of the solar energy simulator section of DOE-2, a public domain computer program that allows users to explore the energy-use patterns of proposed and existing buildings and their heating, ventilating, and air conditioning (HVAC) systems is discussed. This computer program contains a solar energy simulation portion called Component-Based Simulator (CBS) incorporated into the HVAC Plant (large equipment) section. SERI is investigating the adequacy and sensitivity of DOE-2's solar portion when various active solar energy systems and combinations of solar components are interfaced with standard space conditioning systems or used in a stand-alone mode. The components have been assembled into typical configurations and parametric test runs have been performed examining the problems associated with the program and the characteristics of the output for eventual comparison with other energy analysis computer programs.
Date: January 1, 1980
Creator: Eden, A. & Simms, D.A.
Partner: UNT Libraries Government Documents Department

Solar energy technical training directory

Description: Available solar energy offerings in the technical training area are presented. Institutions are listed alphabetically by state. Each listing includes an institution address and phone number, solar programs or curricula offered, and detailed solar couse information. An alphabetical index of institutions in included. (MHR)
Date: June 1, 1979
Creator: Corcoleotes, G; Kramer, K & O'Connor, K
Partner: UNT Libraries Government Documents Department

Industrial and agricultural process heat information user study

Description: The results of a series of telephone interviews with groups of users of information on solar industrial and agricultural process heat (IAPH) are described. These results, part of a larger study on many different solar technologies, identify types of information each group needed and the best ways to get information to each group. In the current study only high-priority groups were examined. Results from 10 IAPH groups of respondents are analyzed in this report: IPH Researchers; APH Researchers; Representatives of Manufacturers of Concentrating and Nonconcentrating Collectors; Plant, Industrial, and Agricultural Engineers; Educators; Representatives of State Agricultural Offices; and County Extension Agents.
Date: March 1, 1981
Creator: Belew, W.W.; Wood, B.L.; Marle, T.L. & Reinhardt, C.L.
Partner: UNT Libraries Government Documents Department

STAM: SERI standard module for collector evaluation

Description: A test facility is being planned for use at the Solar Energy Research Institute (SERI). Identified as STAM (STAndard Module), the facility will be capable of supplying a working fluid under carefully controlled temperature and flowrate conditions to whatever solar collector may be connected to the facility. This capability will be useful in such areas of investigation as collector thermal performance, materials testing, and reliability studies. Initially, emphasis will fall on using the facility to evolve a standard testing procedure for quantifying the thermal performance of concentrating solar collectors. To this end, the equipment will permit measuring the useful energy generated in a solar collector via the conventional mC/sub p/..delta..T procedure (as used in ASHRAE 93-77) as well as the calorimetric ratio technique which offers special advantages at higher operating temperatures. Implementation of the facility will occur in several stages. A detailed design is to be prepared first, based upon SERI's specification of the facility's operating characteristics. Fabrication and installation at the SERI field site will then occur in the last quarter of CY78.
Date: August 1, 1978
Creator: Castle, J.
Partner: UNT Libraries Government Documents Department

Host for international visitors. Progress report, January 1-July 31, 1978

Description: This report sets forth the rationale and need for the task. It provides SERI's program statement, activities engaged in, and a discussion of the several visits with accompanying names of international visitors. Approximately 80 international visitors representing 38 countries visited SERI for purposes of information exchange during the reporting period.
Date: October 1, 1978
Creator: Bracken, R B
Partner: UNT Libraries Government Documents Department

A guide to research facilities at the National Renewable Energy Laboratory

Description: The guide is divided into two parts. Topping the pages are descriptions of laboratories at NREL that provide sophisticated experimental equipment, testing capabilities, or processes that may not be available in the private sector. Scientific categories are designated at the top of the pages in blue; individual laboratory descriptions follow alphabetically, along with the names and phone numbers of the laboratory managers. In blue boxes at the bottom of the pages are articles about NREL, our technology transfer program, and our facilities, as well as guidelines for students, researchers, and industrial collaborators who wish to use them. A list of key contacts and a map of the campus follows the laboratory descriptions.
Date: April 1, 1994
Partner: UNT Libraries Government Documents Department

A planning framework for transferring building energy technologies: Executive Summary

Description: Accelerating the adoption of new and existing cost-effective technologies has significant potential to reduce the energy consumed in US buildings. This report summarizes some of the key results of an interlaboratory technology transfer planning effort in support of the US Department of Energy's Office of Building Technologies (the full report is published under SERI number TP-260-3729). A guiding assumption for planning was that OBT's R D program should forge linkages with existing programs whose goals involved enhancing energy efficiency in buildings. An ad hoc Technology Transfer Advisory Group reviewed the existing analysis and technology transfer program, brainstormed technology transfer approaches, interviewed DOE program managers, identified applicable research results, and developed a framework that management could use in deciding on the best investments of technology transfer resources. Representatives of 22 organizations were interviewed on their views of the potential for transferring energy efficiency technologies through active linking with OBT. The report describes in summary these programs and interview results; outlines OBT tools, technologies, and practices to be transferred; defines OBT audiences; identifies technology transfer functions and presents a framework devised using functions and audiences; presents some example technology transfer activities; and summarizes the Advisory Group's recommendations.
Date: August 1, 1990
Creator: Farhar, B C; Brown, M A; Mohler, B L; Wilde, M & Abel, F H
Partner: UNT Libraries Government Documents Department

Transferring building energy technologies by linking government and private-sector programs

Description: The US Department of Energy's Office of Building Technologies (OBT) may wish to use existing networks and infrastructures wherever possible to transfer energy-efficiency technologies for buildings. The advantages of relying on already existing networks are numerous. These networks have in place mechanisms for reaching audiences interested in energy-efficiency technologies in buildings. Because staffs in trade and professional organizations and in state and local programs have responsibilities for brokering information for their members or client organizations, they are open to opportunities to improve their performance in information transfer. OBT, as an entity with primarily R D functions, is, by cooperating with other programs, spared the necessity of developing an extensive technology transfer program of its own, thus reinventing the wheel.'' Instead, OBT can minimize its investment in technology transfer by relying extensively on programs and networks already in place. OBT can work carefully with staff in other organizations to support and facilitate their efforts at information transfer and getting energy-efficiency tools and technologies into actual use. Consequently, representatives of some 22 programs and organizations were contacted, and face-to-face conversations held, to explore what the potential might be for transferring technology by linking with OBT. The briefs included in this document were derived from the discussions, the newly published Directory of Energy Efficiency Information Services for the Residential and Commercial Sectors, and other sources provided by respondents. Each brief has been sent to persons contacted for their review and comment one or more times, and each has been revised to reflect the review comments.
Date: July 1, 1990
Creator: Farhar, B.C.
Partner: UNT Libraries Government Documents Department

Dynamic performance of packed-bed dehumidifiers: experimental results from the SERI desiccant test loop

Description: Discussed are the design and construction of a desiccant test loop and results of tests with a silica-gel-packed bed. The test loop consists of two centrifugal fans, two duct heaters, a steam humidifier, 24.4m (80 ft) of 30-cm (12-in.) circular duct, instrumentation, and a test section. The loop is capable of testing adsorption and desorption modes at flow rates up to 0.340 kg/s (600 scfm) and at regeneration temperatures up to 120/sup 0/C (248/sup 0/F). Tests of a 74-cm(29-in.)-diameter, 3.2-cm(1.25-in.)-thick silica gel bed indicated that mass transfer occurs more readily in the adsorption direction than in the desorption direction. Pressure drop data indicated that the resistance of each of the two screens that hold the silica gel in place was equivalent to 2.5-cm(1-in.) of silica gel due to plugging. Results of the tests were also used to validate a SERI desiccant computer model, DESSIM.
Date: August 1, 1982
Creator: Kutscher, C F & Barlow, R S
Partner: UNT Libraries Government Documents Department