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A Feasibility Study of H{sub 2}S Abatement by Incineration of Noncondensable Gases in Vented Steam Flow from Davies-State 5206-1 Geothermal Steam Well, Geysers Geothermal Steam Field, Lake County, California

Description: Determine feasibility of using an incineration-type device to accomplish the required reduction in vent steam H{sub 2}S content to meet ICAPCO rules. This approach is to be the only method considered in this feasibility study.
Date: August 25, 2006
Partner: UNT Libraries Government Documents Department

Economic Study for Geothermal Steam Production of Electric Power

Description: This report presents the results of economic analyses of geothermal electric power production facilities using selected geothermal resource temperature characteristics and relates the cost of power and rate of return on investment thus obtained to those being experienced at present and as projected from nuclear and fossil-fuel generating facilities. The results are set down in a manner to permit easy economic comparison of the various options of electric power generation. It is intended that this study will be a management assist in evaluating the rate of return on invested project capital and the resulting cost of electricity generated from geothermal resources as related to existing alternative generation methods. The resulting electric energy cost is compared with the selected alternative electric generation and their costs.
Date: March 18, 1977
Partner: UNT Libraries Government Documents Department

Economic Study of Geothermal Steam Production and Power Generation

Description: This report presents the results of the study to determine the required selling price of geothermal flash steam in order for Phillips Petroleum Company to obtain a rate of return on investment of 10, 15 or 20% on its discovery in Nevada. The economic evaluations are based on an order-of-magnitude type of estimate of capital costs for the flash steam production, steam gathering and brine reinjection system to supply steam to a 55 MW (Gross) geothermal power generating plant, using mixed pressure (double flash steam) and turbine design. Geothermal well costs, brine quality and well productivity data were provided by Phillips Petroleum Company and are based on the discovery wells in Nevada. Power plant costs are based on current technology and available hardware, under construction at the present time. Costs have been escalated to 1977.
Date: February 1, 1977
Partner: UNT Libraries Government Documents Department

Geothermal Loan Guaranty Program

Description: Presently the US imports a large proportion of its petroleum requirements. This dependence on foreign petroleum has had a major impact on our economy. As a result, the Federal government is sponsoring programs to offset this foreign reliance by conservation of oil and gas, conversion of petroleum using facilities to coal and nuclear energy and the development of alternate sources of energy. One of the most acceptable alternate resources is geothermal. It offers an environmentally sound energy resource, can be developed at reasonable cost in comparison to other forms of energy and has a long term production capacity. On September 3, 1974, the Geothermal Energy Research Development and Demonstration Act was enacted to further the research, development and demonstration of geothermal energy technologies. This Act also established the Geothermal Loan Guaranty Program to assist in the financing of geothermal resource development, both electrical and non-electrical. The highlights of that Guaranty Program are detailed in this report.
Date: November 17, 1977
Partner: UNT Libraries Government Documents Department

HGP-A Wellhead Generator, Proof-Of-Feasibility Project 3 MW Wellhead Generator, Start-Up Training and Operating Manual

Description: The start-up manual is an information aid to initially familiarize plant operators with the plant operation and later be used as a reference manual while operating the plant. This start-up manual is supplemented by the Plant Data Manual which contains a detailed description of the philosophy of operation and equipment characteristics. The sequencing herein presents the necessary operating procedures which must be followed in order that a smooth start-up is obtained. The sequence includes, first conditioning the well and stabilizing the steam/water separations, and then bringing the operating machinery on line. The Piping and Instrumentation Diagrams and Electrical Drawings are included under Section 12.0 and are frequently referred to in the text. Information for ''trouble-shooting'' is provided in the maintenance and operations manuals on all the equipment.
Date: January 1, 1981
Partner: UNT Libraries Government Documents Department

Re-Evaluation of Chemical Potential of Imperial Irrigation District Well No. 1

Description: The chemical potential of the brine from I.I.D. Well No. 1 was evaluated and reported in Rogers Engineering Coo, Inc. March 1962 Flow Test Report. This evaluation considered only the recovery of sodium chloride, as the prime salable product and alternately as the raw material for conversion to salable chlorine and caustic. Both cases showed low net revenue relative to the estimated capital investment required. The subsequent three month well flow test indicates continued production of a consistent type brine can be expected from this well. Based on the flow and composition data established during this test period, chemical production potential has been examined. The separation and sale of high quality potassium chloride appears attractive. Attached are sketches of each of the two production schemes considered with estimates of capital and operating costs and revenue.
Date: April 1, 1963
Partner: UNT Libraries Government Documents Department

Report on Flow Test of I.I.D. Well No. 1, Brawley, California Area

Description: The scope of this report is as follows: (1) Presentation of data obtained from the well flow metering tests performed during the week of May 28, 1962; (2) Interpretation of the observed data relative to total mass flow, chemical composition, and heat energy available from the well discharge at this stage in the well flow test program; (3) Compilation of well head pressure and temperature readings and other available pertinent data regularly logged from start of flow test program on May 18, 1962; (4) Determination of electric power generating capability of the well based on observed data; (5) Determination of quantity of major chemical constituents available from the well effluent; and (6) Conclusions and recommendations regarding well performance, future test procedures, and test equipment.
Date: June 1, 1962
Partner: UNT Libraries Government Documents Department

Report on Geothermal Power Plant Cost and Comparative Cost of Geothermal and Coal Fired Steam Power Plants

Description: This report is to be used by Utah Power and Light Company (UP and L) in making studies of geothermal power plants. The dollars per kilowatt comparison between a geothermal plant and a UP and L coal-fired plant is to be developed. Geothermal gathering system costs and return to owner are to be developed for information.
Date: July 1, 1977
Partner: UNT Libraries Government Documents Department

Report on Preliminary Engineering Study for Installation of an Air Cooled Steam Condenser at Brawley Geothermal Plant, Unit No. 1

Description: The Brawley Geothermal Project comprises a single 10 MW nominal geothermal steam turbine-generator unit which has been constructed and operated by the Southern California Edison Company (SCE). Geothermal steam for the unit is supplied through contract by Union Oil Company which requires the return of all condensate. Irrigation District (IID) purchases the electric power generated and provides irrigation water for cooling tower make-up to the plant for the first-five years of operation, commencing mid-1980. Because of the unavailability of irrigation water from IID in the future, SCE is investigating the application and installation of air cooled heat exchangers in conjunction with the existing wet (evaporative) cooling tower with make-up based on use of 180 gpm (nominal) of the geothermal condensate which may be made available by the steam supplier.
Date: March 1, 1982
Partner: UNT Libraries Government Documents Department

Report on the Feasibility of a 15,000 Kilowatt Electric Power Station Using Geothermal Heat Sources at Mammoth Area, Mono County, California

Description: This report comprises a study of all factors pertinent to the feasibility and economics of converting into electric power, the geothermal energy issuing from drilled wells. The study applies particularly to wells in the Mammoth area, California, but many of its conclusions may be applied to other locations. The scope of this report includes: (1) Evaluation of heat cycles for the conversion of the geothermal energy to electric power in a single unit 15,000 kilowatt plant; (2) Selection of the most satisfactory flash-steam cycle and the most satisfactory closed power fluid cycle for more direct comparison; (3) Estimates of plant construction and operating costs for the cycles selected for comparison; (4) Schedules showing estimated start-up and firm operating dates for the cycles selected for comparison; (5) Drawings showing typical plan arrangements and elevations of plants utilizing the cycles selected for comparison; (6) Review of current data on well production and on the available means for effluent disposal; and (7) Conclusions and recommendations.
Date: January 1, 1962
Partner: UNT Libraries Government Documents Department

PGandE Geysers Retrofit Project, Milestone Report No. 3 (Stretford Processes Units 1-12)

Description: Milestone Report No. 3 is a progress report. Rogers Engineering Co., Inc. has investigated what sites are best suited for consolidation of power generating units 1 through 12 for processing the noncondensable gases through the Stretford Process for H{sub 2}S abatement below 10% of the mass flow. The consolidation arrangement for the power generating units are Units 1 through 6 which produces 187 MWe power. Units 7-8 and 11 producing 212 MWe and Units 9-10 and 12 which also produces 212 MWe power. Site survey and selection for the Stretford units provided for a primary and alternative site for each consolidation. Each of these three groups of plants is associated with its Stretford Process Plant. The gas blowers located at each power plant to push the noncondensable gases through the stainless steel pipe network to the Stretford Process have been sized. When combining the new auxiliary load requirements of these blowers and the Stretford units it was determined that additional auxiliary transformer capacity is necessary. We are investigating additional alternatives with respect to the Stretford Process application. This data will be submitted in the Final Report, See Section 6.
Date: June 29, 1979
Partner: UNT Libraries Government Documents Department

PGandE Geysers Retrofit Project, Units 1-12 Condensed Final Report

Description: Geysers Power Plant Units 1-12 conceptual study of two H{sub 2}S abatement systems. The study is to provide a cost benefit and technical analysis of the existing (iron/caustic/peroxide) abatement system compared to retrofitting Units 1-12 with surface condensers and vent gases processing with the Stretford process. The study is based on the understanding that both H{sub 2}S abatement system compared meet the Air Pollution Board's requirements for H{sub 2}S emissions. The summary of this paper is that it is economical to convert from the existing abatement (iron/caustic/peroxide) to the alternative (surface condenser/Stretford) by a substantial amount. There is also a most economical timing sequence to accomplish the conversion to the surface condenser/Stretford abatement. The project if started immediately would be finished and operating by 1984. It is felt that the surface condenser/Stretford abatement system will ultimately meet the Air Pollution Board's requirements and improve the capacity factor of the Geysers power plant Units 1-12.
Date: August 24, 1979
Partner: UNT Libraries Government Documents Department

PGandE Geysers Retrofit Project, Units 1-12: Final Report, Technical Data, Volume I - Sections 1-8

Description: The purpose of this work is to demonstrate whether there is a cost benefit to Pacific Gas and Electric Company in replacing the present iron catalyst/caustic/peroxide system used in the direct contact condenser units with an alternative approach using surface condensers and the Stretford System for hydrogen sulfide abatement.
Date: August 24, 1979
Partner: UNT Libraries Government Documents Department

PGandE Geysers Retrofit Project, Milestone Report No. 2 (Units 5-12)

Description: Milestone Report No. 1 was delivered on June 1, 1979 and related to the conversion of Units 1-4. Milestone Report No. 2 describes the conversion of Units 5-12 from direct contact condensers which use the iron-catalyst/peroxide/caustic systems to surface condensers and H{sub 2}S abatement with the Stretford Process Unit. This Report is a 10 week progress report that specifically addresses itself to the differences that are encountered between Units 5-6, 7-10 and 11-12. The task schedule shown in the Summary Section was originally presented to PG and E at the Project Kick-Off Meeting on Monday, April 23. Units 11 and 12 retrofit concept which appears in this report was evaluated with a two pass surface condenser running parallel to the turbine shaft. This concept requires the relocation of the turbine lube oil tank, instrument air compressor and battery storage rack facilities. On Wednesday, June 27, the condenser supplier notified Rogers Engineering that it was feasible to design and install a four pass, two tube bundle condenser at right angle condenser to the turbine-generator shaft. The four pass condenser concept will eliminate the need of relocating equipment sensitive to turbine operation. However, schedule requirements for Milestone Report No. 2 left no time to incorporate the benefits of the concept they believe will be recommended by Rogers. It will appear in the Final Milestone Report No. 4.
Date: June 29, 1979
Partner: UNT Libraries Government Documents Department