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in subjects: "Geothermal Heating"

open access

Utilization of geothermal energy in the mining and processing of tungsten ore. Final report

The engineering, economic, and environmental feasibility of the use of low and moderate temperature geothermal heat in the mining and processing of tungsten ore is explored. The following are covered: general engineering evaluation, design of a geothermal energy system, economics, the geothermal resource, the institutional barriers assessment, environmental factors, an alternate geothermal energy source, and alternates to geothermal development. (MHR)

Date: January 1, 1981

Creator: Erickson, M. V.; Lacy, S. B.; Lowe, G. D.; Nussbaum, A. M.; Walter, K. M. & Willens, C. A.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Geothermal space heating applications for the Fort Peck Indian Reservation in the vicinity of Poplar, Montana. Final report, August 20, 1979-May 31, 1980

The results of a first-stage evaluation of the overall feasibility of utilizing geothermal waters from the Madison aquifer in the vicinity of Poplar, Montana for space heating are reported. A preliminary assessment of the resource characteristics, a preliminary design and economic evaluation of a geothermal heating district and an analysis of environmental and institutional issues are included. Preliminary investigations were also made into possible additional uses of the geothermal resource, i… more

Date: October 1, 1980

Creator: Birman, J.H.; Cohen, J. & Spencer, G.J.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Geothermal Progress Monitor report No. 11

This issue of the Geothermal Progress Monitor (GPM) is the 11th since the inception of the publication in 1980. It continues to synthesize information on all aspects of geothermal development in this country and abroad to permit identification and quantification of trends in the use of this energy technology. In addition, the GPM is a mechanism for transferring current information on geothermal technology development to the private sector, and, over time, provides a historical record for those … more

Date: December 1, 1989

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Geothermal reservoir management

The optimal management of a hot water geothermal reservoir was considered. The physical system investigated includes a three-dimensional aquifer from which hot water is pumped and circulated through a heat exchanger. Heat removed from the geothermal fluid is transferred to a building complex or other facility for space heating. After passing through the heat exchanger, the (now cooled) geothermal fluid is reinjected into the aquifer. This cools the reservoir at a rate predicted by an expression… more

Date: February 1, 1978

Creator: Scherer, C.R. & Golabi, K.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Utilization of Geothermal Energy for Agribusiness Development in Southwestern New Mexico. Technical Completion Report, July 19, 1978 - May 30, 1980

An evaluation is presented of the direct heat utilization from geothermal resources for agribusiness uses in the Animas Valley, Southwestern New Mexico. The analysis includes an evaluation of the groundwater and geothermal resources in the Animas Valley, monitoring of an existing geothermal greenhouse, and evaluation of two potential agribusiness applications of geothermal waters (greenhouses and meat precooking).

Date: January 1981

Creator: Landsford, Robert R.; Abernathy, George H. & Gollehon, Noel R.

Item Type: Book

Partner: UNT Libraries Government Documents Department

open access

State-of-the-art of liquid waste disposal for geothermal energy systems: 1979. Report PNL-2404

The state-of-the-art of geothermal liquid waste disposal is reviewed and surface and subsurface disposal methods are evaluated with respect to technical, economic, legal, and environmental factors. Three disposal techniques are currently in use at numerous geothermal sites around the world: direct discharge into surface waters; deep-well injection; and ponding for evaporation. The review shows that effluents are directly discharged into surface waters at Wairakei, New Zealand; Larderello, Italy… more

Date: June 1, 1980

Creator: Defferding, L.J.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Geothermal energy: opportunities for California commerce. Phase I report

California's geographic and end-use markets which could directly use low and moderate temperature geothermal resources are ranked and described, as well as those which have the highest potential for near-term commercial development of these resources. Building on previous market surveys, the assessment determined that out of 38 geothermal resource areas with characteristics for direct use development, five areas have no perceived impediments to near-term development: Susanville, Litchfield, Ont… more

Date: January 1, 1982

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Semiannual progress report for the Idaho Geothermal Program, April 1-September 30, 1979

Progress made by the Idaho Geothermal Program between March 31 and September 30, 1979 is discussed. Geothermal well tests at the Raft River geothermal site, facility construction, and the first hydraulic fracture treatment of a geothermal well are summarized. The results of direct applications experiments are described briefly, including experiments in aquaculture, agriculture, fluidized bed space heating, fluidized bed food drying, essential oil extraction, and geothermal assisted conversion o… more

Date: March 1, 1980

Creator: Ihrig, R.R.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Evaluation of geothermal energy in Arizona. Arizona geothermal planning/commercialization team. Quarterly topical progress report, April 1-June 30, 1980

Progress is reported on the following: geothermal prospect identification, area development plans, site specific development analysis, time phased project plans, institutional analysis, hydrothermal commercialization baseline report, and the public outreach program. (MHR)

Date: June 30, 1980

Creator: White, D.H.; Mancini, F.; Goldstone, L.A. & Malysa, L.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Low Temperature Geothermal Energy Applications in the Albuquerque Area. Final Report, July 1, 1978-August 18, 1979

A study was made of the engineering and economic feasibility of hot water geothermal energy applications in the Albuquerque area. A generalized system design was developed and used as the basis for a series of economic case studies. Reservoir and user siting considerations were studied in light of the economic findings. Several specific potential applications were identified, including university campuses, industrial and commercial facilities, and residential buildings. Specific key technical p… more

Date: November 1980

Creator: Kauffman, D. & Houghton, A. V.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Kelley Hot Spring Geothermal Project: Kelly Hot Spring Agricultural Center conceptual design

The proposed core activity in the Kelly Hot Spring Agricultural Center is a nominal 1200 sow swine raising complex. The swine raising is to be a totally confined operation for producing premium pork in controlled environment facilities that utilize geothermal energy. The complex will include a feedmill for producing the various feed formulae required for the animals from breeding through gestation, farrowing, nursery, growing and finishing. The market animals are shipped live by truck to slaugh… more

Date: June 1, 1980

Creator: Longyear, A.B. (ed.)

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Geothermal R and D Project report for period April 1, 1976 to June 30, 1976

Progress during April to July 1976 in research on geothermal energy is reported. The experiments are performed in the Raft River Valley, Idaho, a hydrothermal resource site with water temperatures below 150/sup 0/C. During this period, a third well, RRGE-3 was drilled and well production was tested, testing of a direct contact heat exchanger continued, design and cost estimating continued on a 40 MW (th) organic-binary heat exchange facility, agricultural studies of irrigation with geothermal w… more

Date: October 1, 1976

Creator: Kunze, J. F.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Assessment of the Geothermal Potential of Southwestern New Mexico. (Final Report: 7/1/78 - 4/30/80)

Results are reported of geologic mapping of geothermal anomalies in the Gila Hot Springs KGRA/Mimbres Hot Springs area, Grant County. They suggest that both hot-spring occurrences are structurally controlled by the intersection of a major Basin and Range fault and the disturbed margin of an ash-flow tuff cauldron. Hydrothermal alteration in both areas is related to mid-Tertiary volcanism, not to modern hot springs. At Gila Hot Springs, the geothermal aquifer is a zone at the contact between the… more

Date: July 1, 1981

Creator: Elston, Wolfgang E.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Geothermal aquaculture: a guide to freshwater prawn culture

Biological data of the Malaysian prawn, Macrobrachium rosenbergii, are summarized. A history on its rearing techniques is given, but through the use of geothermal water or industrial warm water effluent, its range can be expanded. The use of wasted geothermal water at the Oregon Institute of Technology for prawn ponds is noted. Pond management and design; the hatchery design and function for larval culture; and geothermal applications (legal aspects and constraints) are discussed. (MCW)

Date: May 1, 1980

Creator: Hayes, A. & Johnson, W.C.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Economics of geothermal, solar, and conventional space heating

The competitive outlook for geothermal and solar heating changed dramatically during the past year. With the recent sharp price increases in imported oil and natural gas and the planned decontrol of domestic prices, geothermal and solar energy will become competitive for space heating throughout most of the country. Under these new conditions, geothermal energy could competitively provide about 40% of the national demand for space heat and domestic hot water (about 7 quads based on 1980 demands… more

Date: January 1, 1980

Creator: Fassbender, L. L.; Bloomster, C. H. & Price, B. A.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Geothermal energy: opportunities for California commerce. Phase I report

The potential geothermal direct-use energy market and its application to projects in California are assessed. Project identification effort is to be focused on those that have the highest probability for near-term successful commercial operations. Near-term herein means 2 to 5 years for project implementation. Phase I has been focused on defining and assessing: (1) the geothermal direct-use resources that are suitable for near-term utilization; and (2) the generic applications (municipal heatin… more

Date: December 1, 1981

Creator: Longyear, A.B. (ed.)

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Mountain Home Geothermal Project: geothermal energy applications in an integrated livestock meat and feed production facility at Mountain Home, Idaho. [Contains glossary]

The Mountain Home Geothermal Project is an engineering and economic study of a vertically integrated livestock meat and feed production facility utilizing direct geothermal energy from the KGRA (Known Geothermal Resource Area) southeast of Mountain Home, Idaho. A system of feed production, swine raising, slaughter, potato processing and waste management was selected for study based upon market trends, regional practices, available technology, use of commercial hardware, resource characteristics… more

Date: February 1, 1979

Creator: Longyear, A. B.; Brink, W. R.; Fisher, L. A.; Matherson, R. H.; Neilson, J. A. & Sanyal, S. K.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Self-start manual for direct use applications of geothermal resources

The process essential to resource assessment and acquisition, candidate application screening, community needs assessment, community acceptance testing, market assessment, regulation, environmental repoting and permitting, siting, technology status, and financing options are presented.

Date: July 1, 1978

Creator: Christiansen, C.C.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Transient Natural Convection in Heated Inclined Tubes

To simulate natural convection flow patterns in directionally drilled wellbores, experiments and analyses were conducted for a circular tube with length-to-diameter (L/D) ratio of 36 at angles of 0{degree}, 20{degree}, and 35{degree} from the vertical. The tube was heated at the bottom and cooled at the top, and the insulation was adjusted so that approximately one- to two-thirds of the power dissipated was transferred through the tube wall to the surroundings. An aqueous solution of polyvinyl … more

Date: May 1, 1990

Creator: McEligot, D. M.; Denbow, D. A. & Murphy, H. D.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Residential heating costs: a comparison of geothermal, solar and conventional resources

The costs of residential heating throughout the United States using conventional, solar, and geothermal energy were determined under current and projected conditions. These costs are very sensitive to location - being dependent on the local prices of conventional energy supplies, local solar insolation, cimate, and the proximity and temperature of potential geothermal resources. The sharp price increases in imported fuels during 1979 and the planned decontrol of domestic oil and natural gas pri… more

Date: August 1, 1980

Creator: Bloomster, C. H.; Garrett-Price, B. A. & Fassbender, L. L.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

User's manual for computer code SOLTES-1 (simulator of large thermal energy systems). [For CDC 6600]

SOLTES simulates the steady-state response of thermal energy systems to time-varying data such as weather and loads. Thermal energy system models of both simple and complex systems can easily be modularly constructed from a library of routines. These routines mathematically model solar collectors, pumps, switches, thermal energy storage, thermal boilers, auxiliary boilers, heat exchangers, extraction turbines, extraction turbine/generators, condensers, regenerative heaters, air conditioners, he… more

Date: September 1, 1978

Creator: Fewell, M.E.; Grandjean, N.R.; Dunn, J.C. & Edenburn, M.W.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Total Energy Recovery System for Agribusiness: Lake County study. Final report

A brief summary is given of the results of a previously reported study designed to evaluate the costs and viability of combined thermodynamic and biologic cycles in a system known as the Total Energy Recovery System for Agribusiness (TERSA). This conceptual system involved the combined geothermally assisted activities of greenhouse crop and mushroom growing, fish farming, and biogas generation in an integrated biologic system such that the waste or by-products of each subsystem cycle were recov… more

Date: April 1, 1978

Creator: Fogleman, S. F.; Fisher, L. A. & Black, A. R.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Geothermal pilot study final report: creating an international geothermal energy community

The Geothermal Pilot Study under the auspices of the Committee on the Challenges of Modern Society (CCMS) was established in 1973 to apply an action-oriented approach to international geothermal research and development, taking advantage of the established channels of governmental communication provided by the North Atlantic Treaty Organization (NATO). The Pilot Study was composed of five substudies. They included: computer-based information systems; direct application of geothermal energy; res… more

Date: June 1, 1978

Creator: Bresee, J.C.; Yen, W.W.S. & Metzler, J.E. (eds.)

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Technical Division quarterly progress report, October 1--December 31, 1976

The first in a series of quarterly progress reports on ERDA budgeted activities subcontracted to Allied Chemical Corporation at the Idaho National Engineering Laboratory is presented. The work is performed by the Technical Division and is divided into three subjects. Fuel cycle research and development includes fluidized-bed calcination and post treatment of commercial nuclear fuel process waste; the storage of fission product noble gas; the catalyzed reaction between NO/sub x/ and NH/sub 3/; t… more

Date: March 1, 1977

Creator: Slansky, C. M. (ed.)

Item Type: Report

Partner: UNT Libraries Government Documents Department