WorldCat Identities

Oregon Institute of Technology (Klamath Falls, Or.). Geo-Heat Center

Overview
Works: 172 works in 243 publications in 1 language and 792 library holdings
Genres: Periodicals 
Roles: Researcher, Other
Classifications: TJ280.7, 621.44
Publication Timeline
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Most widely held works about Oregon Institute of Technology (Klamath Falls, Or.).
 
Most widely held works by Oregon Institute of Technology (Klamath Falls, Or.).
Quarterly bulletin( )

in English and held by 57 WorldCat member libraries worldwide

Geothermal direct use engineering and design guidebook( Book )

2 editions published between 1989 and 1998 in English and held by 12 WorldCat member libraries worldwide

The Geothermal Direct Use Engineering and Design Guidebook is designed to be a comprehensive, thoroughly practical reference guide for engineers and designers of direct heat projects. These projects could include the conversion of geothermal energy into space heating cooling of buildings, district heating, greenhouse heating, aquaculture and industrial processing. The Guidebook is directed at understanding the nature of geothermal resources and the exploration of these resources, fluid sampling techniques, drilling, and completion of geothermal wells through well testing, and reservoir evaluation. It presents information useful to engineers on the specification of equipment including well pumps, piping, heat exchangers, space heating equipment, heat pumps and absorption refrigeration. A compilation of current information about greenhouse, aquaculture and industrial applications is included together with a discussion of engineering cost analysis, regulation requirements, and environmental considerations. The purpose of the Guidebook is to provide an integrated view for the development of direct use projects for which there is a very potential in the United States
Heating facilities, Mt. Laki Presbyterian Church, Klamath Falls, Oregon( Book )

4 editions published in 1981 in English and held by 8 WorldCat member libraries worldwide

Geothermal aquaculture project, Real Property System's, Inc., Harney Basin, Oregon( Book )

3 editions published in 1981 in English and held by 6 WorldCat member libraries worldwide

Real Property Systems Inc., (RPS) owns two parcels in the vicinity of Harney Lake, Oregon. One parcel is 120 acres in size, the other is 200 acres. A study concludes that the 200 acre parcel has the greater potential for geothermal development. RPS is interested in an aquaculture operation that produces fresh water prawns, (Macrobrachium rosenbergii) for the market. To supply the heat necessary to maintain the ideal temperature of 82°F desired for these prawns, a geothermal resource having a 150°F temperature or higher, is needed. The best estimate is that 150°F water can be found from a minimum 1090 feet depth to 2625 feet, with no absolute assurances that sufficient quantities of geothermal waters exist without drilling for the same. This study undertakes the preliminary determination of project economics so that a decision can be made whether or not to proceed with exploratory drilling. The study is based on 10 acres of ponds, with a peak requirement of 2500 gpm of 150°F geothermal water
Aquifer thermal energy storage for a Medford, Oregon, planned unit development( Book )

2 editions published in 1980 in English and held by 5 WorldCat member libraries worldwide

A large (950 unit) Planned Unit Development (PUD) is designed for passive solar heating, including a designed roof overhang to allow incoming winter sunlight, and block the sun's summer rays. Additionally, the developers wanted to maximize the use of renewable energy, and they had begun to explore various alternatives, including the use of the available heat in groundwater. Water-to-air heat pumps can utilize ground water as low in temperature as 50/sup 0/F (10/sup 0/C); however, the lower the temperature, the greater the flow of water must be. It was found that an adequate supply of water for this use was not available
Geothermal heating facilities for Carson Elementary School and Wind River Middle School by Oregon Institute of Technology( Book )

2 editions published in 1982 in English and held by 5 WorldCat member libraries worldwide

Carson Elementary School and Wind River Middle School are located in Carson, Washington, adjacent to the Wind River. Both schools are operated by the Stevenson-Carson School District. Carson Elementary, comprised of 49,000 square feet, was constructed in several phases beginning in 1951. The construction is variable, but is characterized by large expanses of single glass and uninsulated masonry areas. An oil fired steam boiler supplies a variety of terminal equipment. Wind River Middle School was built in 1972 and, as a result, exhibits much greater insulation levels. The 38,000 square foot structure is heated entirely by an electric resistance terminal reheat system. Carson Hot Springs Resort, located approximately one half mile from the schools, exhibits temperatures of 124°F. In addition, geological work is in progress to better define the local geothermal resource. The feasibility of geothermal use at the school for space heating purposes is examined
Basin View Geothermal Heating District, Klamath Falls, Oregon : conceptual design and economic feasibility study report( Book )

2 editions published in 1981 in English and held by 4 WorldCat member libraries worldwide

The findings of a feasibility study performed for Basin View Heating District in Klamath Falls, Oregon are reported. The purpose of the study is to determine the physical, economic, and political feasibility of establishing a geothermal heating district to provide space heat to housing units in the Basin View Development of Klamath Falls. Of the several systems considered, all are physically feasible. The project is politically feasible if the owner compiles with governmental requirements. Economic feasibility is based on considerations of money value rates, tax rates and expected rates of return, which are dependent on government and money markets. For analysis a money value rate of 21% and an owner's marginal tax rate of 35% were adopted
Marketing the Klamath Falls geothermal district heating system by Kevin Rafferty( Book )

3 editions published in 1993 in English and held by 1 WorldCat member library worldwide

The new marketing strategy for the Klamath Falls system has concentrated on offering the customer an attractive and easy to understand rate structure, reduced retrofit cost and complexity for his building along with an attractive package of financing and tax credits. Initial retrofit costs and life-cycle cost analysis have been conducted on 22 buildings to date. For some, the retrofit costs are simply too high for the conversion to make sense at current geothermal rates. For many, however, the prospects are good. At this writing, two new customers are now connected and operating with 5 to 8 more buildings committed to connect this construction season after line extensions are completed. This represents nearly a 60% increase in the number of buildings connected to the system and a 40% increase in system revenue
Data acquisition for low-temperature geothermal well tests and long-term monitoring by Paul J Lienau( Book )

3 editions published in 1992 in English and held by 1 WorldCat member library worldwide

Groundwater monitoring is an essential part of the development of a low-temperature geothermal field for production and injection wells. State water resource and environmental departments are requiring both geothermal well testing and long-term monitoring as a part of the permitting process for geothermal developments. This report covers water-level measurement methods, instruments used for well testing, geochemical sampling, examples of data acquisition and regulatory mandates on groundwater monitoring
Geothermal resource assessment in Oklahoma : modification of a report prepared for U.S. Department of Energy, Division of Geothermal Energy, under contract no. DE-AS07-80ID12172, October 1981 by William E Harrison( )

22 editions published between 1981 and 1997 in English and held by 0 WorldCat member libraries worldwide

This study evaluates the feasibility of using geothermal water for space and domestic water heating systems at the elderly housing project now ready for construction at the Modoc Lassen Indian Reservation. For the six units considered, the space heating load is four times the domestic water heating load. Since the geothermal water temperature is uncertain, two scenarios were evaluated. In the first, which assumes 160°F supply temperature, the geothermal system is assumed to satisfy the entire space and domestic water heating loads. In the second, which assumes the supply temperature to be less than 120°F at the wellhead only space heating is provided. The economics of the first scenario are quite favorable. The additional expenditure of $15,630 is projected to save $3522 annually at current energy costs, and the life cycle cost study projects a discounted rate of return on the investment of 44.4%. Surprisingly, the investment is even more favorable for the second scenario, due to the higher cost and lower resultant savings for the domestic water components. Forced air space heating from geothermal is recommended. Domestic water heating is recommended pending additional information on supply water temperature
Direct use geothermal applications for brazed plate heat exchangers( )

2 editions published in 1992 in English and held by 0 WorldCat member libraries worldwide

Brazed plate heat exchanger were placed in three geothermal fluids (Klamath Falls, OR; Boise, ID; and Pagosa Springs, CO) to determine the effect of H₂S on braze material. Based on subsequent analysis, it appears that the rate of corrosion of the braze material is much slower than corrosion of copper tube materials in the same fluids. Minimum expected life of the heat exchangers based on these corrosion rates is reported to be 12 years in fluids of less than 1 ppm H₂S and 10 years in fluids of less than 5 ppm. Based on these expected lives, and using a 3% inflation rate and 8% discount rate, brazed plate heat exchangers are a clear economic choice in which the capital cost is 50% or less of the cost of a plate and frame heat exchanger for the same duty. Due to their single pass design, brazed plate heat exchangers are generally limited to approach temperatures of 10° or greater. Size limitations restrict applications to 100 gpm and/or 200 ft² heat transfer surface area
Geothermal and geopressure blowout control. Phase I. Study of existing technology. Phase II. Program plan for geothermal and geopressure blowout control( )

2 editions published in 1979 in English and held by 0 WorldCat member libraries worldwide

A short description of the state's geothermal characteristics, economy, and climate is presented. A listing of the majority of the known hot springs is included. A discussion of present and projected demand is included. The results of the site specific studies are addressed within the state energy picture. Possible uses and process requirements of geothermal resources are discussed. The factors which influence geothermal development were researched and presented according to relative importance. (MHR)
Selected cost considerations for geothermal district heating in existing single-family residential areas( )

3 editions published between 1993 and 1996 in English and held by 0 WorldCat member libraries worldwide

In the past, district heating (geothermal or conventionally fueled) has not been widely applied to the single-family residential sector. Low-heat load density is the commonly cited reason for this. Although it's true that load density in these areas is much lower than for downtown business districts, other frequently overlooked factors may compensate for load density. In particular, costs for distribution system installation can be substantially lower in some residential areas due to a variety of factors. This reduced development cost may partially compensate for the reduced revenue resulting from low-load density. This report examines cost associated with the overall design of the system (direct or indirect system design), distribution piping installation, and customer branch lines. It concludes with a comparison of the costs for system development and the revenue from an example residential area
Geothermal energy in Alaska : site data base and development status( )

2 editions published in 1979 in English and held by 0 WorldCat member libraries worldwide

The various factors affecting geothermal resource development are summarized for Alaska including: resource data base, geological description, reservoir characteristics, environmental character, base and development status, institutional factors, economics, population and market, and development potential. (MHR)
Geothermal space and water heating facilities : Schooler Apartments, Klamath Falls, Oregon by Oregon Institute of Technology( )

3 editions published between 1981 and 1982 in English and held by 0 WorldCat member libraries worldwide

Utilizing the warm well water for a geothermal greenhouse heating system is highly economically feasible. This is based on using the 88°F water from Anderson Well No. 1 to heat greenhouses totaling approximately 10.6 acres. The additional investment of $640,000 above the cost for a conventional electric boiler system shows a rate of return of 48.3% on a 20 year life cycle analysis. The simple payback is 3 years. The 88°F well water is not warm enough for prawn (Macrobrachium rosenbergii) aquaculture, since water flow requirements are excessive to maintain the desired 80°F pond temperature. However, the water is warm enough to maintain a 60°F pond temperature for trout farming. Trout farming using the 88°F well water directly is probably not economically feasible due to high electrical pumping cost (34,626 per year) for the seven 1/2 acre ponds that could be heated. Trout farming using the 75°F effluent water from the 10.6 acre greenhouse to heat four 1/2 acre ponds may be economically feasible since the water booster pumping cost is low $1189 per year
Oregon : a guide to geothermal energy development( )

2 editions published in 1980 in English and held by 0 WorldCat member libraries worldwide

The following subjects are covered: Oregons' geothermal potential, exploration methods and costs, drilling, utilization methods, economic factors of direct use projects, and legal and institutional setting. (MHR)
Direct use geothermal applications for brazed plate heat exchangers( )

2 editions published in 1993 in English and held by 0 WorldCat member libraries worldwide

Brazed plate heat exchanger were placed in three geothermal fluids (Klamath Falls, OR; Boise, ID; and Pagosa Springs, CO) in order to determine the effect of H₂S on braze material. Based on subsequent analysis, it appears that the rate of corrosion of the braze material is much slower than corrosion of copper tube materials in the same fluids. Minimum expected life of the heat exchangers based on these corrosion rates is reported to be 12 years in fluids of less than 1 ppm H₂S and 10 years in fluids of less than 5 ppm. Based on these expected lives, and using a 3% inflation rate and 8% discount rate, brazed plate heat exchangers are a clear economic choice in which the capital cost is 50% or less of the cost of a plate and frame heat exchanger for the same duty. Due to their single pass design, brazed plate heat exchangers are generally limited to approach temperatures of 10° or greater. Size limitations restrict applications to 100 gpm and/or 200 ft² heat transfer surface area
Vertical pump turbine oil environmental evaluation by Gene Culver( )

2 editions published between 1991 and 1996 in English and held by 0 WorldCat member libraries worldwide

This report examines the capital and operating costs for fossil fuel-fired peak heating systems in geothermally (direct use) heated greenhouses. Issues covered include equipment capital costs, fuel requirements, maintenance and operating costs, system control and integration into conventional hot water greenhouse heating systems. Annual costs per square foot of greenhouse floor area are developed for three climates: Helena, MT; Klamath Falls, OR and San Bernardino, CA, for both boiler and individual unit heater peaking systems. In most applications, peaking systems sized for 60% of the peak load are able to satisfy over 95% of the annual heating requirements and cost less than $0.15 per square foot per year to operate. The propane-fired boiler system has the least cost of operation in all but Helena, MT climate
Geothermal direct-heat utilization assistance. Quarterly project progress report, April--June 1993( )

2 editions published in 1993 in English and held by 0 WorldCat member libraries worldwide

Technical assistance was provided to 60 requests from 19 states. R & D progress is reported on: evaluation of lineshaft turbine pump problems, geothermal district heating marketing strategy, and greenhouse peaking analysis. Two presentations and one tour were conducted, and three technical papers were prepared. The Geothermal Progress Monitor reported: USGS Forum on Mineral Resources, Renewable Energy Tax Credits Not Working as Congress Intended, Geothermal Industry Tells House Panel, Newberry Pilot Project, and Low-Temperature Geothermal Resources in Nevada
Washington : a guide to geothermal energy development( )

2 editions published in 1980 in English and held by 0 WorldCat member libraries worldwide

Washington's geothermal potential is discussed. The following topics are covered: exploration, drilling, utilization, legal and institutional setting, and economic factors of direct use projects. (MHR)
 
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English (70)