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Institutional and Financial Guide to Geothermal District Heating. Serial No. 2

Description: General planning considerations which affect nearly every community are reviewed, and alternative operating structures which are available to communities are reviewed, including local governments, nonprofit cooperatives, private enterprises, and joint ventures. The financing options available to publicly-owned and privately-owned district heating systems are then summarized. The geothermal production and distribution activities most appropriate to each type of operating structure are reviewed, … more
Date: March 1, 1982
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Photovoltaic engineering services pertinent to solar energy conversion

Description: The application of the compound parabolic concentrator (CPC) for use with solar cells has been investigated. Experiments with state-of-the-art Si cells in a CPC and under solar concentration were performed. A theoretical model for calculating the behavior of Si solar cells with concentration was developed. Detailed calculations of the energy distribution in the CPC were made. Finally a cost effectiveness analysis shows that the CPC system will produce power at very much lower cost than will fla… more
Date: June 1, 1975
Creator: Bell, R O; Ho, J C.T.; Kurth, W & Surek, T
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Utilization of coal-water fuels in fire-tube boilers

Description: This project is a demonstration for firing coal-water slurry in a fire-tube boiler. It includes design, installation, and demonstration of the slurry firing equipment in a fire-tube boiler at the University of Alabama in Tuscaloosa. The project will be funded by the US Department of Energy with cost sharing from Jim Walter Resources and the University of Alabama. Energy and Environmental Research Corporation is the prime contractor responsible for all respects of the project. The specific objec… more
Date: January 1, 1991
Creator: Sommer, T. & Melick, T.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Thermal energy storage for power generation

Description: Studies strongly indicate that the United States will face widespread electrical power constraints in the 1990s, with most regions of the country experiencing capacity shortages by the year 2000. In many cases, the demand for increased power will occur during intermediate and peak demand periods. Much of this demand is expected to be met by oil- and natural gas-fired Brayton cycle turbines and combined-cycle plants. While natural gas is currently plentiful and reasonably priced, the availabilit… more
Date: October 1, 1989
Creator: Drost, M. K.; Antoniak, Z. I.; Brown, D. R. & Sathyanarayana, K.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Catalytic steam gasification of bagasse for the production of methanol

Description: Pacific Northwest Laboratory (PNL) tested the catalytic gasification of bagasse for the production of methanol synthesis gas. The process uses steam, indirect heat, and a catalyst to produce synthesis gas in one step in fluidized bed gasifier. Both laboratory and process development scale (nominal 1 ton/day) gasifiers were used to test two different catalyst systems: (1) supported nickel catalysts and (2) alkali carbonates doped on the bagasse. This paper presents the results of laboratory and … more
Date: December 1, 1983
Creator: Baker, E.G. & Brown, M.D.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Bodcau In Situ Combustion Project. Third annual report, July 1, 1978-August 31, 1979

Description: This project is a cooperative venture between Cities Service Company and the US Department of Energy. The main objective is to demonstrate the operation and economics of a successful commercial scale In Situ Combustion Project in a heavy oil reservoir. This Third Annual Report deals primarily with performance, development and economics of the project in the third year of operation, with pertinent information from the First and Second Annual Report included for background information. The five e… more
Date: August 1, 1980
Creator: Garvey, J.; Pusch, W. H. & Fulford, R. S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Costs and benefits of automotive fuel economy improvement: A partial analysis

Description: This paper is an exercise in estimating the costs and benefits of technology-based fuel economy improvements for automobiles and light trucks. Benefits quantified include vehicle cots, fuel savings, consumer's surplus effects, the effect of reduced weight on vehicle safety, impacts on emissions of CO{sub 2} and criteria pollutants, world oil market and energy security benefits, and the transfer of wealth from US consumes to oil producers. A vehicle stock model is used to capture sales, scrappag… more
Date: March 1, 1992
Creator: Greene, D.L. (Oak Ridge National Lab., TN (United States)) & Duleep, K.G. (Energy and Environmental Analysis, Inc., Arlington, VA (United States))
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Energy conservation and energy decentralization: issues and prospects

Description: Views are presented of the seemingly paradoxical nature and irrationality of the energy system and the decisions that determine its evolution. An economic approach to energy decisions, while widely espoused and generally believed to be the underpinning of our system, appears not to be functioning in very-important areas. The result is enormous waste of economic and intangible resources to produce energy that could be effectively replaced by energy conservation at low costs. This inefficiency in… more
Date: January 1, 1980
Creator: Levine, M. D. & Craig, P. P.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Experimental process system development unit for producing semiconductor-grade silicon using the silane-to-silicon process. Quarterly progress report, October-December 1979

Description: This program consists of the engineering design, fabrication, assembly, operation, economic analysis, and process support R and D for an Experimental Process System Development Unit (EPSDU). EPSDU equipment specification, vendor development, and evaluation of quotations represent a significant effort which will permit the start of ordering EPSDU equipment during the next quarter. Initial mini-burner test results are encouraging. It appears that a fairly simple and cost-effective waste treatment… more
Date: January 1, 1979
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Stirling total energy systems study. Final report, May 15, 1976--June 13, 1977

Description: The application of Stirling cycle prime movers to total energy power generation systems was investigated. Electrical, heating, and cooling demand profiles for a typical residential complex, hospital, and office building were studied, and alternative Stirling total energy systems were conceptualized for each site. These were analyzed in detail and contrasted with purchased-power systems for these sites to determine fuel-energy savings and investment attractiveness. The residential complex and ho… more
Date: August 1, 1977
Creator: Lehrfeld, D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Economic impact of using nonmetallic materials in low to intermediate temperature geothermal well construction. Volume 1

Description: The results are presented of an exhaustive literature search and evaluation concerning the properties and economics of commercially available nonmetallic well casing and screens. These materials were studied in terms of their use in low to intermediate temperature geothermal well construction.
Date: December 1, 1979
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Comparison of solar pond concepts for electrical power generation

Description: The objectives of this study were to: (1) Identify the various solar pond concepts for electric power generation, including but not limited to: (a) nonconvective salt gradient solar pond, (b) ponds with various plastic or other membranes at suitable locations to minimize or eliminate convection, (c) ponds which are totally or partially gelled to reduce or eliminate convection, and (d) shallow convecting ponds; (2) analyze and compare the performance of these various concepts; and (3) estimate t… more
Date: October 1, 1975
Creator: Drumheller, K.; Duffy, J. B.; Harling, O. K.; Knutsen, C. A.; McKinnon, M. A.; Peterson, P. L. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Passive incentive requirements: a regional assessment

Description: The nation's goal of 20% solar contribution by the turn of the century will be achieved, in part, by the construction of residences heated by virtue of their passive solar designs. These designs are not economically competitive against all conventional fuels in all locations. Some degree of government incentive will be required to assure a competitive position for these designs. A methodology is presented which is used to assess the magnitude of the government incentive required to assure feasi… more
Date: January 1, 1980
Creator: Ben-David, S.; Kirschner, C.; Noll, S.A. & Roach, F.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Least cost planning from a customer's perspective

Description: In this paper, I offer some thoughts about least cost planning, not from the perspective of the regulator or utility, but from the perspective of a residential customer. The problem that I address is, as a homeowner in northern Virginia, I am about to make a long term fuel choice for my household, where the options include, natural gas, electricity and fuel oil. An additional choice is the energy efficiency capital investment in my home that could decrease my monthly fuel costs. My decision pro… more
Date: March 2, 1992
Creator: Sutherland, R.J.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Technical-economic assessment of the production of methanol from biomass. Executive summary. Final research report

Description: The results are presented of a comprehensive systems study which assessed the engineering and economic feasibilities of the production of methanol from biomass utilizing existing technology. The three major components of the biomass to methanol system assessed are the availability of biomass feedstocks, the thermochemical conversion of biomass to methanol fuels, and the distribution and markets for methanol fuels. The results of this study show that methanol fuel can be produced from biomass us… more
Date: July 12, 1979
Creator: Wan, E. I.; Simmons, J. A.; Price, J. D. & Nguyen, T. D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Industrial cogeneration case study No. 3: Mead Corporation Paper Mill, Kingsport, Tennessee

Description: The design, operation, performance, economics and energy efficiency of the 25,000 kW co-generating power plant at the Mead Co. paper mill in Kingsport, TN are described, and compared with the efficiency of producing only process heat at the plant while importing electric power from a local utility. It was established that on-site co-generation consumed 2/3 of the energy that would have been required for on-site process heat generation plus purchased off-site-generated electric power and that co… more
Date: April 1, 1980
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Eucalyptus plantations for energy production in Hawaii. Technical status report, October 1, 1978-June 30, 1980

Description: Progress made on accomplishing research objectives is reported. The objectives of this project are: (1) to increase the biomass production of Eucalyptus; (2) to determine the optimum requirements to maximize yield; (3) to assess planting, cultivation, harvesting, and transportation equipment requirements; (4) to determine the optimum mixture of biomass (eucalyptus and bagasse) at the generator for the production of electricity; and (5) to evaluate a complete production/conversion system which u… more
Date: July 14, 1980
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Optimization of steam explosion pretreatment. Final report

Description: Different operating conditions are required to optimize the yield from each of the various fractions in the substrate. Xylose recovery is maximized at short cooking times whereas maximum lignin recovery requires much longer cooking times. Peak glucose yield and rumen digestibility occur at intermediate times. If process conditions are set for maximum glucose yield we have achieved a yield of 68% of the theoretical, based on an average of a dozen substrates tested. Individual results ranged from… more
Date: April 1, 1980
Creator: Foody, P.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Comparative ranking of 0. 1-10 MW/sub e/ solar thermal electric power systems. Volume II. Supporting data. Final report

Description: This report is part of a two-volume set summarizing the results of a comparative ranking of generic solar thermal concepts designed specifically for electric power generation. The original objective of the study was to project the mid-1990 cost and performance of selected generic solar thermal electric power systems for utility applications and to rank these systems by criteria that reflect their future commercial acceptance. This study considered plants with rated capacities of 1-10 MW/sub e/,… more
Date: July 1, 1980
Creator: Thornton, J.P.; Brown, K.C.; Finegold, J.G.; Gresham, J.B.; Herlevich, F.A. & Kriz, T.A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Power plant reject heat utilization: an assessment of the potential for wide-scale implementation

Description: An assessment of the relative economic and heat utilization merits of plant reject heat utilization systems was made in an effort to indicate those technologies that show the greatest potential for wide-scale implementation in the power generating industry. The heat utilization systems were designed to accommodate the yearly cooling needs of a 1000-MW(e) power plant. Thus, for the purposes of this study, it was assumed that these systems replaced the cooling tower as the primary condenser cooli… more
Date: December 1, 1977
Creator: Olszewski, M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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