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Geothermal Energy

Description: Geothermal Energy Technology (GET) announces on a bimonthly basis the current worldwide information available on the technologies required for economic recovery of geothermal energy and its use as direct heat or for electric power production.
Date: February 1, 1996
Creator: Steele, B.C.; Harman, G. & Pitsenbarger, J.
Partner: UNT Libraries Government Documents Department

Brawley 10MW Geothermal Plant Plant Manual for Southern California Edison Company and Union Oil Company of California: Systems Start-up and Operations, Volume II

Description: Each system within the facility is considered from an operation viewpoint. There are five subsegments within this operation's viewpoint. Prerequisite conditions, start-up, normal operating, emergency and shutdown.
Date: November 28, 1980
Partner: UNT Libraries Government Documents Department

Achieving Technical Performance

Description: Originally, operating a license and protecting the environment were to be handled in separate workshops but since these two subjects are closely related they were combined. The workshop participants did, however, try to focus the discussion on the two separately, though we were not always successful. Fortunately, we had two people in our group who are intimately involved in licensing proceedings in the only two states that have considered geothermal power plants, California and New Mexico. Lavonne Blucher-Nameny of PG and E reviewed the California procedure and Dave Sabo of Public Service Company of New Mexico covered New Mexico.
Date: December 1, 1980
Creator: Unitt, S.G.
Partner: UNT Libraries Government Documents Department

Benefit/Cost Analysis of Geothermal Technology R&D. Volume IV: Geochemical and Materials Engineering

Description: This volume presents the benefit/cost analysis of 45 R and D projects sponsored by the Geochemical and Materials Engineering program of the Utilization Technology Branch, Division of Geothermal Energy, Department of Energy, as of F.Y. 1978. Benefits of the R and D projects were estimated as potential cost savings in electricity production of geothermal power plants installed in the years 1979-2000 at 27 US liquid-dominated geothermal prospects. The total cost saving was found to be from 3.9 to 8.5% making the overall benefit/cost ratio of the R and D projects fall somewhere between 18.3 and 39.8.
Date: May 1, 1979
Creator: Nguyen, Van Thanh & Entingh, Daniel J.
Partner: UNT Libraries Government Documents Department

H{sub2}S Abatement at The Geysers

Description: This paper discusses the efforts by the inter-departmental task forces which have been formed by PG and E to improve and expedite the development, design, installation, and modifications to hydrogen sulfide abatement and abatement-related systems for The Geysers power plants.
Date: December 1, 1980
Creator: Ziomek, N.L.
Partner: UNT Libraries Government Documents Department

Obtaining a License and Protecting the Environment

Description: Originally these two were to be handled in separate workshops but since these two subjects are closely related they were combined. The workshop participants did, however, try to focus the discussion on the two separately, though we were not always successful. Fortunately, we had two people in our group who are intimately involved in licensing proceedings in the only two states that have considered geothermal power plants, California and New Mexico. Lavonne Blucher-Nameny of PG and E reviewed the California procedure and Dave Sabo of Public Service Company of New Mexico covered New Mexico.
Date: December 1, 1980
Creator: Weinberg, Carl J.
Partner: UNT Libraries Government Documents Department

New project for Hot Wet Rock geothermal reservoir design concept

Description: This paper presents the outlines of a new Hot Wet Rock (HWR) geothermal project. The goal of the project is to develop a design methodology for combined artificial and natural crack geothermal reservoir systems with the objective of enhancing the thermal output of existing geothermal power plants. The proposed concept of HWR and the research tasks of the project are described.
Date: January 1, 1992
Creator: Takahashi, Hideaki & Hashida, Toshiyuki
Partner: UNT Libraries Government Documents Department

Operation of Mammoth Pacific`s MP1-100 turbine with metastable, supersaturated expansions

Description: INEL`s Heat Cycle Research project continues to develop a technology base for increasing use of moderate-temperature hydrothermal resources to generate electrical power. One concept is the use of metastable, supersaturated turbine expansions. These expansions support a supersaturated working fluid vapor; at equilibrium conditions, liquid condensate would be present during the turbine expansion process. Studies suggest that if these expansions do not adversely affect the turbine performance, up to 8-10% more power could be produced from a given geothermal fluid. Determining the impact of these expansions on turbine performance is the focus of the project investigations being reported.
Date: January 1, 1996
Creator: Mines, G.L.
Partner: UNT Libraries Government Documents Department

Radial Inflow Turboexpander Redesign

Description: Steamboat Envirosystems, LLC (SELC) was awarded a grant in accordance with the DOE Enhanced Geothermal Systems Project Development. Atlas-Copco Rotoflow (ACR), a radial expansion turbine manufacturer, was responsible for the manufacturing of the turbine and the creation of the new computer program. SB Geo, Inc. (SBG), the facility operator, monitored and assisted ACR's activities as well as provided installation and startup assistance. The primary scope of the project is the redesign of an axial flow turbine to a radial inflow turboexpander to provide increased efficiency and reliability at an existing facility. In addition to the increased efficiency and reliability, the redesign includes an improved reduction gear design, and improved shaft seal design, and upgraded control system and a greater flexibility of application
Date: September 24, 2001
Creator: Price, William G.
Partner: UNT Libraries Government Documents Department