80 Matching Results

Search Results

Advanced search parameters have been applied.
in subjects: "Turbines"  
Results: 1 - 24 next
open access

LLL total flow geothermal program: summary of two-phase nozzle tests for scale control and materials performance

Description: A series of nozzle and wearblade tests to evaluate scale control and materials performance under total flow nozzle inlet conditions and simulated turbine blade environments was completed using Magmamax No. 1 well fluid. Brine acidification was effective in preventing scale in nozzles and on wearblade flow surfaces. Acid consumption measurements indicate that acid cost will be less than 2 mills/100 lb. brine. Measured erosion rates were low and the results indicate that available materials will … more
Date: December 1, 1977
Creator: Tardiff, G.E. (ed.)
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Feasibility demonstration of the Sperry down-well pumping system. Final report

Description: Advantages of down-well pumping (vs. free-flowing) of geothermal hot-water wells are presented, and criteria for such a system are discussed. The main body of the report is presented under the following section headings: the Sperry down-well pumping system; field test program; field operations; test results; and, conclusions and recommendations. The appendix includes a summary of boiler heat transfer and pressure drop calculations. (JGB)
Date: May 1, 1977
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Improved ceramic heat exchanger material

Description: Various ceramic materials in the form of small, monolithic bars were screened as candidate materials in heat exchanger structures for automotive gas turbine engines. The material finally selected consists of 60 w/o* petalite (LAS) and 40 w/o of a recrystallizable glass which converts during thermal processing to cordierite (MAS). This new material, GE-3200, was fabricated by Coors Porcelain Company into a circular honeycomb structure 53.3 cm diameter and 10.2 cm thick (21'' x 4'') and having 69… more
Date: November 1, 1977
Creator: Rauch, H. W., Sr.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Kilowatt Isotope Power System: component test procedure for the ground demonstration system multi-power level combined rotating unit. 77-KIPS-61

Description: This test procedure (No. 402) provides a detailed description of the verification methods which shall be used in the developmental program to be conducted on the Combined Rotating Unit-(CRU) of the Kilowatt Isotope Power System KIPS, to fulfill the requirements of the Ground Demonstration Test Plan. The test objectives were to: establish operating conditions, overspeed conditions and to measure basic performance; measure output power; record spin-down data and calculate bearing losses; calculat… more
Date: December 1, 1977
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Application of direct contact heat exchangers to geothermal power production cycles. Project review, December 1, 1974--May 31, 1977

Description: Work performed on the development of direct contact heat exchanger power cycles for geothermal applications is reviewed. The period covered in the report is from the inception of the project in 1974 through May 31, 1977. Results from a large experimental program on heat exchanger develpment as well as from many analyses of components and cycle performance and economics are given. A number of working fluids and operating conditions have been considered, and no major obstacles for the implementat… more
Date: January 1, 1977
Creator: Jacobs, H. R.; Boehm, R. F. & Hansen, A. C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Effect of generalized wind characteristics on annual power estimates from wind turbine generators

Description: A technique is presented for estimating the average power output of a wind turbine using, as the wind characteristic input, only the mean annual wind magnitude. Hourly wind speeds are assumed to have a Rayleigh frequency distribution which requires a single parameter input (e.g., the mean value, variance or higher moment values). Based upon a general shape, for the wind speed versus machine output, a generic set of curves is developed to estimate the average power output of wind turbines. Also,… more
Date: October 1, 1977
Creator: Cliff, W.C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Giromill wind tunnel test and analysis. Volume I. Executive summary. Final report, June 1976--October 1977

Description: The study described herein is a continuation of the Giromill investigation in which a wind tunnel test of a model Giromill rotor was performed. The primary objective of the wind tunnel test was to obtain data for comparison with the Larsen cyclogiro vortex theory program employed for predicting the Giromill performance. The model had a rotor diameter of 7 ft. (2.13 meters) and a solidity (total blade area divided by rotor span times diameter) of 0.3. This was achieved by a three bladed rotor ha… more
Date: October 1, 1977
Creator: Moran, W. A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Durability testing at one atmosphere of advanced catalysts and catalyst supports for automotive gas turbine engine combustors. Part 1

Description: Studies were conducted to experimentally demonstrate the durability catalysts and catalyst supports in a combustion environment. A test of 1000 hours duration was completed with two catalysts, using No. 2 diesel fuel and operating at catalytically supported thermal combustion conditions. This atmospheric pressure durability test was conducted, using an air preheat temperature of about 640/sup 0/K and a reference velocity of about 14 meters/second. The adiabatic flame temperature of the fuel/air… more
Date: June 1, 1977
Creator: Heck, R.M.; Chang, M.; Hess, H. & Carrubba, R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

KIPS kilowatt isotope power system

Description: This Control System topical report covers basic control requirements, selection of control system and a recent review of an electromechanical approach to the flow control valve. Section I covers the basic control requirements for Organic Rankine cycle systems, particular requirements for an isotope fueled space power system, and special requirements imposed by launch, Shuttle deployment and spacecraft requirements. Various control devices which can be used to meet system requirements are discus… more
Date: January 1, 1977
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Potassium vapor topping cycle. Technical progress report, April 1--June 30, 1977

Description: The potassium vapor topping cycle is a concept for increasing the efficiency of the Rankine vapor cycle by raising the peak temperature by employing a potassium vapor cycle with a turbine inlet temperature of 1500 to 1600/sup 0/F (815 to 870/sup 0/C) in which the waste heat rejected from the condensing potassium vapor is transferred to boiling water and steam in a conventional steam cycle. An efficiency of about 50% is calculated for this cycle with a natural circulation potassium boiler fired … more
Date: October 4, 1977
Creator: Holcomb, R. S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Coal Technology Program progress report for August 1977

Description: The projects reported this month include those for coal conversion process development, materials engineering, alkali metal vapor topping cycles, a coal equipment test facility, a fluidized bed combustor technology test unit, engineering and support studies, process and program assistance, and environmental assessment studies. In hydrocarbonization research, material balance results from Run HC-21 confirm earlier tests with Wyodak coal, showing an oil yield of 21% based on MAF coal. In the coal… more
Date: October 1, 1977
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Feasibility investigation of the Giromill for generation of electrical power. Volume I. Executive summary. Final report, April 1975--April 1976

Description: The feasibility of the Giromill for the cost effective production of electrical energy is studied. Twenty-one different Giromill configurations covering three sizes of Giromill systems (120, 500 and 1500 kW) were analyzed, varying such parameters as rotor solidity, rotor aspect ratio, rated wind velocity, and number of rotor blades. The Giromill system analysis employed the same ground rules being used for conventional windmill analyses to facilitate comparisons between these systems. The resul… more
Date: January 1, 1977
Creator: Brulle, R. V.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Characterization and Research Investigation of Methanol and Methyl Fuels. Final Progress Report

Description: Work on several aspects of using pure methanol as an alternate fuel are reported. A stock (OEM) Pinto engine mounted on a dynamometer was used to compare methanol with Indolene in terms of power, efficiency, and emissions for a variety of speeds and loads. Although the engine was designed for use with gasoline, it was found that methanol was generally superior in power, thermal efficiency and reduced emissions with the exception of aldehydes. Three different fuel metering systems were tested fo… more
Date: January 1, 1977
Creator: Pefley, R. K.; Browning, L. H.; Hornberger, M. L.; Likos, W. E.; McCormack, M. C. & Pullman, B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Solar Pilot Plant, Phase I. Preliminary design report. Volume VI. Electrical power generation; master control subsystems; balance of plant CDRL item 2

Description: The Honeywell electrical power generation subsystem centers on a General Electric dual admission, triple extraction turbine generator sized to the output requirements of the Pilot Plant. The turbine receives steam from the receiver subsystem and/or the thermal storage subsystem and supplies those subsystems with feedwater. The turbine condensor is wet cooled. The plant control system consists of a coordinated digital master and subsystem digital/analog controls. The remainder of the plant, work… more
Date: May 1, 1977
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Fossil energy research meeting

Description: U.S. ERDA's research programs in fossil energy are reviewed with brief descriptions, budgets, etc. Of general interest are discussions related to the capabilities for such research of national laboratories, universities, energy centers, etc. Of necessity many items are treated briefly, but a general overview of the whole program is provided. (LTN)
Date: December 1, 1977
Creator: Kropschot, R. H. & Phillips, G. C.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Potassium vapor topping cycle. Technical progress report, January 1--March 31, 1977

Description: The potassium vapor topping cycle is a concept for increasing the efficiency of the Rankine vapor cycle by raising the peak temperature by employing a potassium vapor cycle with a turbine inlet temperature of 1500 to 1600/sup 0/F (815 to 870/sup 0/C) in which the waste heat rejected from the condensing potassium vapor is transferred to boiling water and steam in a conventional steam cycle. An efficiency of about 50% is calculated for this cycle with a natural circulation potassium boiler fired … more
Date: December 1, 1977
Creator: Holcomb, R. S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Technology development for high-salinity geothermal resources

Description: An impulse turbine for Total Flow utilization of geothermal fluids was tested. Performance measurements verify the calculational model. The research goal of 70% engine efficiency remains credible. Addition of acid to the brine prevents scaling and precipitation at moderate costs. Corrosion and erosion of turbine materials for the Total Flow Process are not severe. (JB)
Date: August 5, 1977
Creator: Lundberg, A.W.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Coal technology program. Progress report, May 1977

Description: Two successful operability tests with sustained operation of the bench-scale hydrocarbonizer were achieved with Illinois No. 6 coal diluted with char. Several activities in the area of nondestructive testing of coatings are reviewed. Failure analysis activities included examination of several components from the solvent refined coal plants at Wilsonville, Alabama, and Tacoma, Washington. In the gas-fired potassium boiler project, all of the design work were completed except for several of the i… more
Date: July 1, 1977
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Study and program plan for improved heavy duty gas turbine engine ceramic component development

Description: A five-year program plan was generated from the study activities with the objectives of demonstrating a fuel economy of 213 mg/W . h (0.35 lb/hp-hr) brake specific fuel consumption by 1981 through use of ceramic materials, with conformance to current and projected Federal noise and emission standards, and to demonstrate a commercially viable engine. Study results show that increased turbine inlet and regenerator inlet temperatures, through the use of ceramic materials, contribute the greatest a… more
Date: May 1, 1977
Creator: Helms, H.E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Study of practical cycles for geothermal power plants. Final report

Description: A comparison is made of the performance and cost of geothermal power cycles designed specifically, utilizing existing technology, to exploit the high temperature, high salinity resource at Niland and the moderate temperature, moderately saline resource at East Mesa in California's Imperial Valley. Only two kinds of cycles are considered in the analysis. Both employ a dual flash arrangement and the liberated steam is either utilized directly in a condensing steam turbine or used to heat a second… more
Date: April 1, 1977
Creator: Eskesen, J.H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Baseline Gas Turbine Development Program. Eighteenth Quarterly Progress Report

Description: Progress is reported for a program whose goals are to demonstrate an experimental upgraded 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, compact-size American automobile. Initial running of the upgraded engine took place on July 13, 1976. The engine proved to be mechanically sound, but was also 4… more
Date: April 30, 1977
Creator: Schmidt, F. W. & Wagner, C. E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Solar Pilot Plant, Phase I. Preliminary design report. Volume II, Book 3. Dynamic simulation model and computer program descriptions. CDRL item 2. [SPP dynamics simulation program]

Description: The mathematical models and computer program comprising the SPP Dynamic Simulation are described. The SPP Dynamic Simulation is a computerized model representing the time-varying performance characteristics of the SPP. The model incorporates all the principal components of the pilot plant. Time-dependent direct normal solar insulation, as corrupted by simulated cloud passages, is transformed into absorbed radiant power by actions of the heliostat field and enclosed receiver cavity. The absorbed… more
Date: May 1, 1977
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Environmental control implications of generating electric power from coal. Appendix C. Gasification/combined-cycle power generation: comparison of alternative systems. 1977 technology status report. [246 references w. abstracts]

Description: The technical, economic, and environmental aspects of low-Btu gasification/combined-cycle power-generation (LBG/CCPG) plants are assessed, using available published data. Six base-case plants, based on three different gasifiers and two different coals, are investigated. A representative combined power cycle is selected for analysis, and material and energy balances for the six systems are developed. Emissions of various air pollutants, including sulfur dioxide and nitrogen oxides, and discharge… more
Date: December 1, 1977
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Test and evaluation of a solar-powered laboratory turbocompressor system for building heating and cooling. Final technical report. [Rankine cycle]

Description: Extensive testing of an available laboratory Rankine-cycle turbocompressor cooling system was conducted over a range of temperatures consistent with present-day flat-plate and advanced medium-concentration solar collectors and at air- and water-cooled condenser temperature levels. Over 700 hours of testing demonstrated the high performance potential of such systems over a wide range of operational conditions and has provided design guidelines and preliminary specifications for future systems. M… more
Date: March 1, 1977
Creator: Biancardi, F.R.; Meader, M.D. Melikian, G.; Landerman, A.M. & Hall, J.B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
Back to Top of Screen