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Solar hot water system installed at Days Inn Motel, Jacksonville, Florida

Description: The solar energy hot water system installed in the Days Inns of America, Inc., Days Inn Motel (120 rooms) I-95 and Cagle Road, Jacksonville, Florida, is described. The solar system was designed by ILI, Incorporated to provide 65 percent of the hot water demand. The system is one of eleven systems planned under this grant. Water (in the Solar Energy Products, Model CU-30ww liquid flat plate collector (900 square feet) system) automatically drains into the 1000 gallon lined and vented steel stora… more
Date: September 1, 1980
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Confirmation test for gas/slurry flow in SRC-I coal liquefaction process. Internal R and D final report

Description: The overall objective of program 12.11.1 was to provide data needed to confirm the design of the transport system, slurry heat exchangers, and slurry feed manifolds for the SRC-I Demonstration Plant. Because of lack of funds, the program was terminated before most of the work was completed. Two studies related to distribution of two-phase flow in the heat exchanger tubes were finished. A special system was designed to measure slurry concentration and flow rate in different tubes. Results showed… more
Date: September 1, 1983
Creator: Moujaes, S.F.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Corrosion of SiC and oxide-composite ceramics by a simulated steam-reformer atmosphere

Description: To achieve higher process efficiency by using pressurized reactants and/or heat transfer fluids, the US DOE is promoting development of high-pressure heat exchanger systems under cost-sharing agreements with industrial contractors. The steam reformer would contain more than 600 tubes. Because the combination of high temperature and pressure differential of 12.7 kg/cm{sup 2} (180 psig) across the tube wall is too severe for metallic tubes, ceramic materials are being considered for reformer tube… more
Date: September 1, 1991
Creator: Federer, J.I.; Kim, H.E. & Moorhead, A.J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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MARITIME GAS-COOLED REACTOR PROGRAM QUARTERLY PROGRESS REPORT FOR PERIOD ENDING, SEPTEMBER 30, 1960

Description: The feasibility was studied and a cost estimate prepared of an experimental reactor to determine the operating characteristics of beryllia- moderated, gas-cooled systems wtthin a power limit of 10 Mw(t). The heat energy produced by the experimental reactor is to be dissipated in a heat dump. No machinery for production of power was to be provided. Other requirements were that the reactor should be capable of testing core types different from the current MGCR design, and the system should permit… more
Date: September 30, 1960
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Economy of a retrofit solar system

Description: A privately financed solar-augmented hot water system has been demonstrated to pay off in less than 10 years if a loan is obtained at 10.5% interest. Calculations were made on the assumption that electricity costs 5 cents per kWh and water consumption averages 30 gallons per day (using current technology on an existing dwelling in Tennessee).
Date: September 1, 1977
Creator: Schreyer, J.M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Test results from the 500 kW direct contact pilot plant at East Mesa

Description: A 500 kW power plant utilizing direct contact heat exchange (DCHX) between the geothermal brine and the isobutane (IC/sub 4/) working fluid is being operated at the East Mesa test facility. The power plant incorporates a 40-inch-diameter direct-contactor approximately 35 feet tall. The purpose of the pilot plant is to determine the feasibility of large-scale direct-contact heat exchange and power plant operation with the DCHX. The binary cycle offers higher conversion factors (heat energy trans… more
Date: September 1, 1980
Creator: Nichols, K.E.; Olander, R.G. & Lobach, J.L.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Solar hot water system installed at Days Inn Motel, Dallas, Texas (Valley View)

Description: The solar hot water system installed in the Days Inns of America, Inc., Days Inn Motel (120 rooms), I-35/2276 Valley View Lane, Dallas, Texas is described. The solar system was designed by ILI Incorporated to provide 65 percent of the total domestic hot water (DHW) demand. The Solar Energy Products, model CU-30WW liquid (water) flat plate collector (1000 square feet) system automatically drains into the 1000 gallon steel storage tank when the solar pump is not running. This system is one of ele… more
Date: September 1, 1980
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Uranium enrichment export control guide: Gaseous diffusion

Description: This document was prepared to serve as a guide for export control officials in their interpretation, understanding, and implementation of export laws that relate to the Zangger International Trigger List for gaseous diffusion uranium enrichment process components, equipment, and materials. Particular emphasis is focused on items that are especially designed or prepared since export controls are required for these by States that are party to the International Nuclear Nonproliferation Treaty.
Date: September 1, 1989
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Experimental analysis of direct-expansion ground-coupled heat pump systems

Description: Direct-expansion ground-coil-coupled (DXGC) heat pump systems have certain energy efficiency advantages over conventional ground-coupled heat pump (GCHP) systems. Principal among these advantages are that the secondary heat transfer fluid heat exchanger and circulating pump are eliminated. While the DXGC concept can produce higher efficiencies, it also produces more system design and environmental problems (e.g., compressor starting, oil return, possible ground pollution, and more refrigerant c… more
Date: September 1, 1991
Creator: Mei, V.C. & Baxter, V.D.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Dynamics of Tubes in Fluid with Tube-Baffle Interaction

Description: Three series of tests are performed to evaluate the effects of tube to tube-support-plate (TSP) clearance on tube dynamic characteristics and instability phenomena for tube arrays in crossflow. Test results show that, for relatively large clearances, tubes may possess TSP-inactive modes in which the tubes rattle inside some of the tube-support-plate holes, and that the natural frequencies of TSP-inactive modes are lower than those of TSP-active modes, in which the support plates provide knife-e… more
Date: September 1983
Creator: Chen, S. S.; Jendrzejczyk, J. A. & Wambsganss, M. W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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A Theory for Fluidelastic Instability of Tube-Support-Plate Inactive Modes

Description: Fluid-elastic instability of loosely supported tubes, vibrating in a tube-support-plate (TSP) inactive mode, is suspected to be one of the main causes of tube failure in some operating steam generators and heat exchangers. This report presents a mathematical model for fluid-elastic instability of loosely supported tubes exposed to non-uniform cross-flow. The model incorporates all motion-dependent fluid forces based on the unsteady flow theory. In the unstable region associated with a TSP-inact… more
Date: September 1990
Creator: Cai, Y.; Chen, Shoei-Sheng & Chandra, S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Air quality in tightly sealed and passive homes

Description: Indoor air quality has attracted increasing attention during the past few yars. Pollutants generated from combustion, building materials, and human activities may reach significant levels in the indoor environment to produce adverse health effects. This report deals with the classes of pollutants and their sources, and the significance of reported levels, possible health effects, and control strategies in relation to tightly sealed and passive solar construction techniques. In tightly sealed ho… more
Date: September 1, 1981
Creator: Scott, L.A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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500 kW direct contact pilot plant for East Mesa

Description: A 500 kW powerplant utilizing a direct contact heat exchanger (DCHX) between the geothermal brine and the isobutane working fluid is nearing completion at the East Mesa Component Test Facility. The primary purpose of the plant is to evaluate the performance potential of the direct contact system in a size much larger than the small exploratory units that have been tested to date. Thermodynamic performance of DCHX binary power systems has been demonstrated in small 10 kW research test rigs (Refs… more
Date: September 1, 1979
Creator: Nichols, K.E.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Aspects of the Kalina technology applied to geothermal power production

Description: This report contains the results of studies conducted at the Idaho National Engineering Laboratory (INEL) concerning the applicability of the Kalina technology to geothermal (hydrothermal) power production. This report represents a correction and addition to that report. The Heat Cycle Research Program (HCRP) has as its primary goal the cost-effective production of electric power from moderate temperature hydrothermal resources. Recent work has included the study of supercritical cycles with co… more
Date: September 21, 1989
Creator: Bliem, C.J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Cost effective solar hot water system for Econo-Travel Motor Hotel located at Richmond, Virginia. Final report

Description: The final report is presented of a cost effective solar hot water heating system installed on the Econo-Travel Motor Hotel at 5408 Williamsburg Road, Richmond, Virginia. The description of the system is given along with the final cost breakdown, expected performance data and expected payback time for the installed system is estimated to be approximately five (5) years instead of the 6.65 years estimated for the proposal. The additional savings is due to the reduction in the peak demand charge s… more
Date: September 1, 1979
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Recommendations for a cryogenic system for ITER (International Thermonuclear Experimental Reactor)

Description: The International Thermonuclear Experimental Reactor (ITER) is a new tokamak design project with joint participation from Japan, the European Community, the Soviet Union, and the United States. ITER will be a large machine requiring up to 100 kW of refrigeration at 4.5 K to cool its superconducting magnets. Unlike earlier fusion experiments, the ITER cryogenic system must handle pulse loads constituting a large percentage of the total load. These come from neutron heating during a fusion burn a… more
Date: September 20, 1989
Creator: Slack, D.S.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Solar assisted heat pump system with volume solar collector. Technical report

Description: The system uses the attic of the house with a large south facing window as the solar collector. An air-to-water heat pump uses the attic air as a heat source to heat a volume of storage water during the heating season. During the cooling season the attic is ventilated and the heat pump uses the attic air as a heat sink while cooling the storage water. The computer program was developed to include a heat exchanger in the attic which could by-pass the heat pump condenser cooling water, thus permi… more
Date: September 1, 1978
Creator: Sabnis, J.S.; Hickox, W.J.; Drucker, E.E.; Ucar, M. & LaGraff, J.E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Technical assessment of the prevention of micro-fouling on OTEC heat-transfer surfaces through the use of ultraviolet radiation

Description: To reduce or eliminate biofouling by microorganisms it has been suggested that the seawater entering the heat exchanger be sterilized (or at least sanitized) by uv radiation at 253.7 nm. The feasibility of applying this technology to OTEC is examined. Trivial calculations based on the Lambert-Beer equation and reasonable assumptions about seawater quality and the intensity of irradiation obtainable from a uv lamp suggest seawater may be transparent enough to a collimated beam of uv light to del… more
Date: September 1, 1981
Creator: Garrigan, G. A.; Schmitt, R. P. & Ciccone, V. J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

THE COMPONENT TEST FACILITY – A NATIONAL USER FACILITY FOR TESTING OF HIGH TEMPERATURE GAS-COOLED REACTOR (HTGR) COMPONENTS AND SYSTEMS

Description: The Next Generation Nuclear Plant (NGNP) and other High-Temperature Gas-cooled Reactor (HTGR) Projects require research, development, design, construction, and operation of a nuclear plant intended for both high-efficiency electricity production and high-temperature industrial applications, including hydrogen production. During the life cycle stages of an HTGR, plant systems, structures and components (SSCs) will be developed to support this reactor technology. To mitigate technical, schedule, … more
Date: September 1, 2008
Creator: Duncan, David S.; Balls, Vondell J. & Austad, Stephanie L.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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NGNP Process Heat Utilization: Liquid Metal Phase Change Heat Exchanger

Description: One key long-standing issue that must be overcome to fully realize the successful growth of nuclear power is to determine other benefits of nuclear energy apart from meeting the electricity demands. The Next Generation Nuclear Plant (NGNP) will most likely be producing electricity and heat for the production of hydrogen and/or oil retrieval from oil sands and oil shale to help in our national pursuit of energy independence. For nuclear process heat to be utilized, intermediate heat exchange is … more
Date: September 1, 2008
Creator: Sabharwall, Piyush; Patterson, Mike; Utgikar, Vivek & Gunnerson, Fred
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Heat Exchanger Design Options and Tritium Transport Study for the VHTR System

Description: This report presents the results of a study conducted to consider heat exchanger options and tritium transport in a very high temperature reactor (VHTR) system for the Next Generation Nuclear Plant Project. The heat exchanger options include types, arrangements, channel patterns in printed circuit heat exchangers (PCHE), coolant flow direction, and pipe configuration in shell-and-tube designs. Study considerations include: three types of heat exchanger designs (PCHE, shell-and-tube, and helical… more
Date: September 1, 2008
Creator: Oh, Chang H. & Kim, Eung S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Design Option of Heat Exchanger for the Next Generation Nuclear Plant

Description: The Next Generation Nuclear Plant (NGNP), a very High temperature Gas-Cooled Reactor (VHTGRS) concept, will provide the first demonstration of a closed-loop Brayton cycle at a commercial scale of a few hundred megawatts electric and hydrogen production. The power conversion system (PCS) for the NGNP will take advantage of the significantly higher reactor outlet temperatures of the VHTGRS to provide higher efficiencies than can be achieved in the current generation of light water reactors. Besid… more
Date: September 1, 2008
Creator: Kim, Eung Soo & Oh, Chang
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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