17 Matching Results

Search Results

Advanced search parameters have been applied.
in creator/contributor: "Bliem, C.J."  
Results: 1 - 17
open access

Geothermal heat cycle research supercritical cycle with counterflow condenser in different orientations

Description: The Heat Cycle Research Program, which is conducted for the Department of Energy, has as its objective the development of the technology for effecting the improved utilization of moderate temperature geothermal resources. The current testing involves the investigation of binary power cycle performance utilizing mixtures of non-adjacent hydrocarbons as the working fluids, with supercritical vaporization and in-tube condensation of the working fluid. The utilization of these concepts verified her… more
Date: January 1, 1988
Creator: Bliem, C.J. & Mines, G.L.
Partner: UNT Libraries Government Documents Department
open access

Overview of recent supercritical binary geothermal cycle experiments from the Heat Cycle Research Program

Description: The Heat Cycle Research Program, which is being conducted for the Department of Energy, has as its objective the development of the technology for effecting improved utilization of moderate temperature geothermal resources. Testing at the Heat Cycle Research Facility located at the DOE Geothermal Test Facility East Mesa, California involves supercritical vaporization and counterflow in-tube condensing in an organic Rankine cycle. Results of the experiments are given for both pure and mixed-hydr… more
Date: January 1, 1986
Creator: Demuth, O.J.; Bliem, C.J.; Mines, G.L. & Swank, W.D.
Partner: UNT Libraries Government Documents Department
open access

Vaporization at supercritical pressures and counterflow condensing of pure and mixed-hydrocarbon working fluids for geothermal power plants

Description: The Heat Cycle Research Program has as its objective the development of the technology for effecting improved utilization of moderate temperature geothermal resources. Current testing involves supercritical vaporization and counterflow in-tube condensing in an organic Rankine cycle. Results of the experiments are given for both pure and mixed-hydrocarbon working fluids. The heater and condenser behavior predicted by the Heat Transfer Research, Inc. computer codes used for correlation of the dat… more
Date: January 1, 1986
Creator: Bliem, C.J.; Demuth, O.J.; Mines, G.L. & Swank, W.D.
Partner: UNT Libraries Government Documents Department
open access

Overview of recent activities in the Heat Cycle Research Program

Description: The Heat Cycle Research Program, which is being conducted for the Department of Energy, has as its objective the development of the technology for effecting the improved utilization of moderate temperature geothermal resources. To meet this objective, the program has as one of its goals to improve the performance of geothermal binary cycles to levels approaching the practicable thermodynamic maximum. In pursuit of this goal, tests are being conducted at the Heat Cycle Research Facility located … more
Date: January 1, 1987
Creator: Bliem, C.J. & Mines, G.L.
Partner: UNT Libraries Government Documents Department
open access

Advanced binary geothermal power plants working fluid property determination and heat exchanger design

Description: The performance of binary geothermal power plants can be improved through the proper choice of a working fluid, and optimization of component designs and operating conditions. This paper reviews the investigations at the Idaho National Engineering Laboratory (INEL) which are examining binary cycle performance improvements for moderate temperature (350 to 400 F) resources with emphasis on how the improvements may be integrated into design of binary cycles. These investigations are examining perf… more
Date: January 1, 1989
Creator: Bliem, C.J. & Mines, G.L.
Partner: UNT Libraries Government Documents Department
open access

Overview of the Heat Cycle Research project

Description: The Heat Cycle Research project is developing the technology base that will permit a much greater utilization of the moderate- temperature, liquid-dominated geothermal resources, particularly for the generation of electrical power. The emphasis in the project has been the improvement of the performance of binary power cycles. The investigations have been examining concepts projected to improve the brine utilization by 20% relative to a Heber-type'' binary plant; these investigations are nearing… more
Date: January 1, 1991
Creator: Bliem, C.J. & Mines, G.L.
Partner: UNT Libraries Government Documents Department
open access

Relative performance of supercritical binary geothermal power cycles with in-tube condensors in different orientations

Description: The Heat Cycle Research Program, which is conducted for the Department of Energy, has as its objective the development of the technology for effecting the improved utilization of moderate temperature geothermal resources. The current testing involves the investigation of the performance of binary power cycles utilizing mixtures of non-adjacent hydrocarbons as the working fluids, with supercritical vaporization and in-tube condensation. The utilization of these concepts will improve the net geof… more
Date: January 1, 1989
Creator: Bliem, C.J. & Mines, G.L.
Partner: UNT Libraries Government Documents Department
open access

Zeotropic mixtures of halocarbons as working fluids in binary geothermal power generation cycles

Description: The performance of Rankine cycle binary systems for geothermal power generation using a hydrothermal resource has been investigated. To date, in addition to many pure fluids, mixtures of Paraffin-type hydrocarbons and water-ammonia mixtures have been investigated. This paper gives the results of consideration of mixtures of halocarbons as working fluids in these power cycles. The performance of mixtures of Refrigerant-114 (R-114) and Refrigerant-22 (R-22) in combinations from pure R-114 to pure… more
Date: January 1, 1987
Creator: Bliem, C.J.
Partner: UNT Libraries Government Documents Department
open access

Geothermal heat cycle research: Supercritical cycle with horizontal counterflow condenser

Description: The Heat Cycle Research Program, which is being conducted for the Department of Energy, has as its objective the development of the technology for effecting the improved utilization of moderate temperature geothermal resources. To meet this objective, the program has as one of its goals to improve the performance of geothermal binary cycles to levels approaching the practicable thermodynamic maximum. In pursuit of this goal, tests are being conducted at the Heat Cycle Research Facility located … more
Date: January 1, 1987
Creator: Mines, G.L.; Swank, W.D. & Bliem, C.J.
Partner: UNT Libraries Government Documents Department
open access

Simple strategies for minimization of cooling water usage in binary power plants

Description: The geothermal resources which could be used for the production of electrical power in the United States are located for the most part in the semi-arid western regions of the country. The availability of ground or surface water in the quantity or quality desired for a conventional wet'' heat rejections system represents a barrier to the development of these resources with the binary cycle technology. This paper investigates some simple strategies to minimize the cooling water usage of binary po… more
Date: January 1, 1989
Creator: Bliem, C.J. & Mines, G.L. (EG and G Idaho, Inc., Idaho Falls, ID (USA))
Partner: UNT Libraries Government Documents Department
open access

Initial results for supercritical cycle experiments using pure and mixed-hydrocarbon working fluids

Description: The Heat Cycle Research Program, which is being conducted for the Department of Energy, has as its objective the development of the technology for effecting improved utilization of moderate temperature geothermal resources. Testing at the Heat Cycle Research Facility (HCRF) located at the DOE Geothermal Test Facility (GTF), East Mesa, California, is presently being conducted to meet this objective. Current testing involves a supercritical vaporization and countercurrent in-tube condensing syste… more
Date: January 1, 1984
Creator: Bliem, C.J. & Mines, G.L.
Partner: UNT Libraries Government Documents Department
open access

Second law analysis of advanced power generation systems using variable temperature heat sources

Description: Many systems produce power using variable temperature (sensible) heat sources. The Heat Cycle Research Program is currently investigating the potential improvements to such power cycles utilizing moderate temperature geothermal resources to produce electrical power. It has been shown that mixtures of saturated hydrocarbons (alkanes) or halogenated hydrocarbons operating with a supercritical Rankine cycle gave improved performance over boiling Rankine cycles with the pure working fluids for typi… more
Date: January 1, 1990
Creator: Bliem, C.J. & Mines, G.L.
Partner: UNT Libraries Government Documents Department
open access

Heat Cycle Research Experimental Program, FY-1985

Description: The Heat Cycle Research Program, which is being conducted for the Department of Energy, has as its objective the development of the technology for effecting improved utilization of moderate temperature geothermal resources. Testing at the Heat cycle Research Facility located at the DOE Geothermal Test Facility, East Mesa, California is presently being conducted to meet this objective. Current testing involves a supercritical vaporization and counterflow in-tube condensing system. The paper pres… more
Date: January 1, 1985
Creator: Bliem, C.J.; Demuth, O.J.; Mines, G.L. & Whitbeck, J.F.
Partner: UNT Libraries Government Documents Department
open access

Advanced binary geothermal power plants: Limits of performance

Description: The Heat Cycle Research Program is currently investigating the potential improvements to power cycles utilizing moderate temperature geothermal resources to produce electrical power. Investigations have specifically examined Rankine cycle binary power systems. Binary Rankine cycles are more efficient than the flash steam cycles at moderate resource temperatures, achieving a higher net brine effectiveness. At resource conditions similar to those at the Heber binary plant, it has been shown that … more
Date: January 1, 1990
Creator: Bliem, C.J. & Mines, G.L.
Partner: UNT Libraries Government Documents Department
open access

Improving the efficiency of binary cycles

Description: The performance of binary geothermal power plants can be improved through the proper choice of a working fluid, and optimization of component designs and operating conditions. This paper summarizes the investigations at the Idaho National Engineering Laboratory (INEL) which are examining binary cycle performance improvements for moderate temperature (350 to 400 F) resources. These investigations examine performance improvements resulting from the supercritical vaporization and countercurrent in… more
Date: January 1, 1988
Creator: Mines, G.L. & Bliem, C.J.
Partner: UNT Libraries Government Documents Department
open access

Advanced Binary Geothermal Power Plancts Working Fluid Property Determination and Heat Exchanger Design

Description: The performance of binary geothermal power plants can be improved through the proper choice of a working fluid, and optimization of component designs and operating conditions. This paper reviews the investigations at the Idaho National Engineering Laboratory (INEL) which are examining binary cycle performance improvements: for moderate temperature (350 to 400 F) resources with emphasis on how the improvements may be integrated into design of binary cycles. These investigations are examining per… more
Date: March 21, 1989
Creator: Bliem, C.J. & Mines, G.L.
Partner: UNT Libraries Government Documents Department
open access

Supersaturated Turbine Expansions for Binary Geothermal Power Plants

Description: The Heat Cycle Research project is developing the technology base that will permit a much greater utilization of the moderate-temperature, liquid-dominated geothermal resources, particularly for the generation of electrical power. The emphasis in the project has been the improvement of the performance of binary power cycles. The investigations have been examining concepts projected to improve the brine utilization by 20% relative to a ''Heber-type'' binary plant; these investigations are nearin… more
Date: March 24, 1992
Creator: Bliem, C.J. & Mines, G.L.
Partner: UNT Libraries Government Documents Department
Back to Top of Screen