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Investigation of the feasibility of using wind power for space heating in colder climates. Annual report for the period ending June 30, 1978. [University of Massachusetts Wind Furnace project]

Description: This report presents the background and progress to date for the Wind Furnace project at the University of Massachusetts. The organization of the report gives a general description of the Wind Furnace installed at Solar Habitat-I with performance and operational data of general inerest. More detail is presented under the summary discussions for each task with referenced technical reports and published papers giving a full description of the specific tasks.
Date: October 1, 1979
Creator: Cromack, D E
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Wind energy systems. Application to regional utilities

Description: This study developed a generic planning process that utilities can use to determine the feasibility of utilizing WECS (Wind Energy Conversion Systems) as part of their future mix of equipment. While this is primarily an economic process, other questions dealing with WECS availability, capacity credit, operating reserve, performance of WECS arrays, etc., had to be addressed. The approach was to establish the worth, or breakeven value, of WECS to the utility and to determine the impact that WECS … more
Date: June 1, 1979
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Statistics of wind fluctuations over complex terrain

Description: This report deals with the properties of relative turbulence intensities, turbulent spectra and frequency distributions over uniform and complex terrain. As to intensities of turbulence, the report concentrates on properties of sigma/sub u//u/sub */, sigma/sub v//u/sub */, sigma/sub w//u/sub */, where the sigma's are the standard deviations of the longitudinal, transverse and vertical velocity components, respectively, and u/sub */ is the friction velocity. Given these ratios, relative turbulen… more
Date: October 1, 1979
Creator: Dutton, J A; Panofsky, H A; Larko, D; Shirer, H N; Stone, G & Vilardo, M
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Development of an 8 kW wind turbine generator for residential type applications. Phase I: design and analysis. Volume II. Technical report

Description: This Phase I summary report contains a description of the 8 kW wind energy conversion system developed by the United Technologies Research Center (UTRC) for the Department of Energy. The wind turbine employs the UTRC Bearingless Rotor Concept in conjunction with a passive pendulum control system which controls blade pitch for start-up, efficient power generation, and high-speed survivability. The report contains a summary of the experimental and analytical programs in support of design efforts.… more
Date: June 25, 1979
Creator: Cheney, M C
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Further investigations of diffuser augmented wind turbines. Part 2. Technical report. Final report

Description: A multiphased investigation is described which involves three test facilities of several compact diffuser approaches. Screens, to simulate a wind turbine, and a three-bladed, fixed-pitch turbine have been with the diffuser models. A candidate baseline design is described and some of the key issues are discussed that can lead to future full scale implementation.
Date: July 1, 1979
Creator: Foreman, K. M. & Gilbert, B. L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Vertical axis wind turbine development. Executive summary. Final report, March 1, 1976-June 30, 1977

Description: Information is presented concerning the numerical solution of the aerodynamics of cross-flow wind turbines; boundary layer considerations for a vertical axis wind turbine; WVU VAWT outdoor test model; low solidity blade tests; high solidity blade design; cost analysis of the WVU VAWT test model; structural parametric analysis of VAWT blades; and cost study of current WECS.
Date: July 1, 1979
Creator: Walters, R. E.; Fanucci, J. B.; Hill, P. W. & Migliore, P. G.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Financial problems facing the manufacturers of small wind energy conversion systems. Final report

Description: The financial barriers faced by the manufacturers of small wind energy conversion systems (SWECS) are assessed and found to be similar to those faced by other start up businesses. However, these problems are found to be aggravated by the high expectations for accelerated SWECS industry growth in the face of moderate government support and lack of investment capital. The underlying conditions of limited SWECS entrepreneur business experience, the highly competitive venture capital market, the in… more
Date: November 1, 1979
Creator: Bolle, T G
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Wind energy systems application to regional utilities. [SERIES code; WINDS code; PHASES code; AVERAGE code; NETLOAD code; GENSYS code; PROCOST code; CAP6 code; EVEN code]

Description: A methodology for analyzing the economic impact of WECS on a utility is described in Volume I of this report. The methodology requires extrapolating both historical utility load data and historical wind power into a year of analysis; calculating the total amount of funds made available in that year, as a result of the inclusion of wind power in the utility mix; and then estimating the present value of the total funds made available to the utility over the life of the WECS. To apply the methodol… more
Date: September 1, 1979
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Development of an 8 kW wind turbine generator for residential type applications. Phase I: design and analysis. Volume 1. Executive summary

Description: The Composite Bearingless Wind Turbine was developed at the United Technologies Research Center following many years of bearingless rotor research and development for helicopter applications. The current 8 kW contract was begun in October 1977 with delivery of the prototype scheduled for November 1979. The contract consists of two phases. Phase I encompasses the complete design of the system and supporting analytical and experimental studies. The Phase I final report has been completed, and thi… more
Date: June 25, 1979
Creator: Cheney, M C
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Application of wind energy to Great Plains irrigation pumping. Final report

Description: Wind energy systems without energy storage for irrigation in the Great Plains are studied. Major uses of irrigation energy were identified as pumping for surface distribution systems, which could be supplied by variable flow, and pumping for sprinkler systems using constant flow. A computer program was developed to simulate operation of wind-powered irrigation wells. Pumping by wind turbine systems was simulated for 2 variable and 2 constant flow operational modes in which auxiliary motors were… more
Date: October 1979
Creator: Hagen, L. J.; Lyles, L. & Skidmore, E. L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Wind Energy Innovative Systems conference proceedings

Description: Separate abstracts are included for 20 of the 22 papers presented concerning innovative wind turbines which vary in design from the standard horizontal-axis propellor-type wind turbines. Two papers have been previously included in the data base.
Date: December 1, 1979
Creator: Vas, I. E.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Electric utility application of wind energy conversion systems on the island of Oahu

Description: The objective of this study was to assess the potential for the application of Wind Energy Conversion Systems (a field of interconnected WTGs denoted in this report by the acronym WECS) in a specific utility contest to gain advance information concerning their economic feasibility; their optional problems; the criteria and procedures for site selection; environmental impacts; legal, social, and other problems; and the balance of cost and benefits from the point of view of the consumer and the u… more
Date: February 23, 1979
Creator: Lindley, C.A. & Melton, W.C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Solar 79 Northwest

Description: The highlights of the many public programs are described and summaries of plenary session speeches are included. Names, addresses, and solar interest codes of conference registrants are included. Eleven technical papers or summaries are included. A separate citation was prepared for each one. (MHR)
Date: January 1, 1979
Creator: King, S
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Wind characteristics for agricultural wind energy applications

Description: Wind energy utilization in agriculture can provide a potentially significant savings in fuel oil consumption and ultimately a cost savings to the farmer. A knowledge of the wind characteristics within a region and at a location can contribute greatly to a more efficient and cost-effective use of this resource. Current research indicates that the important wind characteristics include mean annual wind speed and the frequency distribution of the wind, seasonal and diurnal variations in wind speed… more
Date: January 1, 1979
Creator: Renne, D. S.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Product liability and small wind energy conversion systems (SWECS): an analysis of selected issues and policy alternatives

Description: An overview is presented of the various legal issues regarding SWECS performance and safety, according to when such issues may arise during the SWECS manufacturing and marketing processes. Next, the most significant issues are translated into a series of questions, followed by a legal analysis that addresses these questions within the framework of the present product litigation system. The special problems presented to SWECS by judicial treatment of design defect cases and the relevance of indu… more
Date: December 1, 1979
Creator: Noun, R.J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Prospects for investment in solar energy

Description: The prospects for solar energy and the growth of the solar industry are discussed. Some misconceptions, capital requirements, energy payback, and growth rate are reviewed. Technologies briefly discussed in the order in which they will likely be commercialized are: conservation, passive solar, biomass, flat plate collectors for water and space heating, wind power, solar ponds, photovoltaics, concentrating collectors for high temperature heat and electricity generation, ocean thermal energy conve… more
Date: December 1, 1979
Creator: Edesess, M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Summary of currently used wind turbine performance prediction computer codes

Description: Informaion on currently used wind turbine aerodynamic/economic performance prediction codes is compiled and presented. Areas of interest to wind energy researchers that are not included in the reported codes are identified. Areas which are weak in experimental support are also identified.
Date: May 1, 1979
Creator: Perkins, F.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Conversion system overview assessment. Volume II. Solar-wind hybrid systems

Description: Solar-wind hybrid systems are discussed. It is shown that there are large areas in the United States where solar and wind resources are comparable in magnitude and there are diurnal and seasonal complementarities which offer the potential for cost-effective hybrid systems. There are also distinct engineering features of the two conversion technologies. Electric power generation from wind is straightforward and cost-effective, whereas solar thermal conversion to generate heat is more cost-effect… more
Date: August 1, 1979
Creator: Jayadev, T. S.; Henderson, J. & Bingham, C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Siting small wind turbines

Description: A recent survey has indicated that improper siting has been a common cause of dissatisfaction among users of small wind turbines. That is, the user has not received the power output or machine life he expected. Most potential purchasers will need to be reasonably certain of the cost of wind power for their particular application before they decide to buy a wind energy conversion system (WECS). Such an assessment requires an accurate knowledge of wind characteristics at the turbine site. A proce… more
Date: March 1, 1979
Creator: Pennell, W. T. & Wegley, H. L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Vertical axis wind turbine development. Final report, March 1, 1976-June 30, 1977

Description: Theoretical and experimental research accomplished in evaluating an innovative concept for vertical axis wind turbines (VAWT) is described. The concept is that of using straight blades composed of circulation controlled airfoil sections. The theoretical analysis has been developed to determine the unsteady lift and moment characteristics of multiple-blade cross-flow wind turbines. To determine the drag data needed as input to the theoretical analysis, an outdoor test model VAWT has been constru… more
Date: July 1, 1979
Creator: Walters, R. E.; Fanucci, J. B.; Hill, P. W. & Migliore, P. G.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

General reliability and safety methodology and its application to wind energy conversion systems

Description: In conventional system reliability calculations, each component may be in the Operable state or the Under Repair state. These calculations derive system unavailability, or the probability of the system's being down for repairs. By introducing a third component state between Operable and Under Repair - namely, Defective, But Defect Undetected - the methods developed in this report enable system safety projections to be made in addition to availability projections. Also provided is a mechani… more
Date: September 1, 1979
Creator: Edesess, M. & McConnell, R. D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Security assessment of power systems including energy storage and with the integration of wind energy. Progress report, July 1-September 30, 1979

Description: The progress of the first three tasks of the wind energy part of the contract is discussed. Emphasis is on the modeling of the wind and the detailed computer representations of three candidate wind systems; namely, MOD-1, MOD-2 and the Shackle machine. Once the detailed computer representations of these wind systems have been developed the next step is to begin work on the reduced order models to be used in transient stability programs.
Date: October 1, 1979
Creator: Carroll, D.P. & Krause, P.C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Giromill overview

Description: The Giromill is a vertical axis wind turbine having straight airfoils whose angles of attack are controlled so as to maximize wind energy conversion. Each airfoil is rocked during a revolution in order to maintain a constant positive angle of attack over one half revolution and a constant negative value over the other half revolution. McDonnell Aircraft Company completed a feasibility study of the Giromill in 1976. Their initial work was followed by model tests in a wind tunnel in 1976 and 1977… more
Date: January 1, 1979
Creator: McConnell, R. D.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Wind characteristics for design of wind turbines: research in the USA

Description: The Pacific Northwest Laboratory (PNL) of the United States Department of Energy has the primary responsibility for providing information on wind characteristics for design and for evaluation of performance of wind energy conversion systems (WECS). The objectives of the whole program are, broadly, to develop technical wind information which is relevant to the design of WECS, to determine suitable methods of measuring and analyzing the wind for evaluating WECS performance, and to communicate the… more
Date: December 1, 1979
Creator: Connell, J.R.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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