National Library of Energy BETA

Sample records for draft cooling towers

  1. Reduction in performance due to recirculation in mechanical-draft cooling towers

    SciTech Connect

    Kroger, D.G. )

    1989-01-01

    The influence of recirculating warm plume air on the performance of mechanical-draft cooling towers is investigated analytically, numerically and experimentally. It is shown that the amount of recirculation that occurs is a function of the flow and the thermal and geometric characteristics of the tower. The presence of a wind wall tends to reduce the mount of recirculation. An equation is presented with which the performance effectiveness due to recirculation can be evaluated approximately for a mechanical-draft cooling tower.

  2. Cooling Towers: Understanding Key Components of Cooling Towers...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Cooling Towers: Understanding Key Components of Cooling Towers and How to Improve Water Efficiency Cooling Towers: Understanding Key Components of Cooling Towers and How to Improve ...

  3. Fill fouling experiences on both mechanical and natural draft towers

    SciTech Connect

    Fraze, R.O. )

    1992-01-01

    Fouling of the film fill in cooling towers is becoming an increasingly serious problem in the Utility Industry. This paper discusses Florida Power Corporation's experience with fouling of film type fill in two mechanical draft and two natural draft towers. The two mechanical draft towers were placed in service as helper towers at the Anclote Plant in 1981. The two natural draft towers went into service at the Crystal River North Site in 1982 and 1984 for closed cycle cooling. All the towers are on salt water systems.

  4. Vortex-augmented cooling tower - windmill combination

    DOEpatents

    McAllister, J.E. Jr.

    1982-09-02

    A cooling tower for cooling large quantities of effluent water from a production facility by utilizing natural wind forces includes the use of a series of helically directed air inlet passages extending outwardly from the base of the tower to introduce air from any direction in a swirling vortical pattern while the force of the draft created in the tower makes it possible to place conventional power generating windmills in the air passage to provide power as a by-product.

  5. Vortex-augmented cooling tower-windmill combination

    DOEpatents

    McAllister, Jr., John E.

    1985-01-01

    A cooling tower for cooling large quantities of effluent water from a production facility by utilizing natural wind forces includes the use of a series of helically directed air inlet passages extending outwardly from the base of the tower to introduce air from any direction in a swirling vortical pattern while the force of the draft created in the tower makes it possible to place conventional power generating windmills in the air passages to provide power as a by-product.

  6. Vortex-augmented cooling tower-windmill combination

    SciTech Connect

    McAllister Jr., J. E.

    1985-02-12

    A cooling tower for cooling large quantities of effluent water from a production facility by utilizing natural wind forces includes the use of a series of helically directed air inlet passages extending outwardly from the base of the tower to introduce air from any direction in a swirling vortical pattern while the force of the draft created in the tower makes it possible to place conventional power generating windmills in the air passages to provide power as a by-product.

  7. Cooling Towers: Understanding Key Components of Cooling Towers and How to

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Improve Water Efficiency | Department of Energy Cooling Towers: Understanding Key Components of Cooling Towers and How to Improve Water Efficiency Cooling Towers: Understanding Key Components of Cooling Towers and How to Improve Water Efficiency Fact sheet covers the key components of cooling towers and how to improve water efficiency. Download the cooling towers fact sheet. (3.16 MB) More Documents & Publications Guidelines for Estimating Unmetered Industrial Water Use Side Stream

  8. Best Management Practice #10: Cooling Tower Management

    Office of Energy Efficiency and Renewable Energy (EERE)

    Cooling towers dissipate heat from recirculating water used to cool chillers, air conditioners, or other process equipment to the ambient air. Heat is rejected to the environment from cooling towers through the process of evaporation. Therefore, by design, cooling towers use significant amounts of water.

  9. 2004 Savannah River Cooling Tower Collection (U)

    SciTech Connect

    Garrett, Alfred; Parker, Matthew J.; Villa-Aleman, E.

    2005-05-01

    The Savannah River National Laboratory (SRNL) collected ground truth in and around the Savannah River Site (SRS) F-Area cooling tower during the spring and summer of 2004. The ground truth data consisted of air temperatures and humidity inside and around the cooling tower, wind speed and direction, cooling water temperatures entering; inside adn leaving the cooling tower, cooling tower fan exhaust velocities and thermal images taken from helicopters. The F-Area cooling tower had six cells, some of which were operated with fans off during long periods of the collection. The operating status (fan on or off) for each of the six cells was derived from operations logbooks and added to the collection database. SRNL collected the F-Area cooling tower data to produce a database suitable for validation of a cooling tower model used by one of SRNL's customer agencies. SRNL considers the data to be accurate enough for use in a model validation effort. Also, the thermal images of the cooling tower decks and throats combined with the temperature measurements inside the tower provide valuable information about the appearance of cooling towers as a function of fan operating status and time of day.

  10. Cooling tower environmental considerations for cogeneration projects

    SciTech Connect

    Weaver, K.L.; Putnam, R.A.; Schott, G.A.

    1994-12-31

    Careful consideration must be given to the potential environmental impacts resulting from cooling tower operations in cogeneration projects. Concerns include visible plumes, fogging and icing of nearby roadways, emissions, water use, aesthetics, and noise. These issues must be properly addressed in order to gain public acceptance and allow for easier permitting of the facility. This paper discusses the various evaporative type cooling tower technologies from an environmental standpoint. In addition, typical concerns and questions raised by the public are presented, along with suggested guidelines for addressing these concerns. The use of modeling to predict the potential environmental impacts from cooling tower operations is sometimes required by regulatory agencies as a condition for obtaining approval for the facility. This paper discusses two of the models that are currently available for predicting cooling tower environmental impacts such as fogging, icing, salt deposition, and visible plumes. The lack of standardized models for cooling tower noise predictions, and the means by which the modeling requirements may be achieved are also addressed. An overview of the characteristics of cooling tower noise, the various measures used for noise control and the interdependency of the control measures and other cooling tower performance parameters are presented. Guidance is provided to design cost effective, low noise installations. The requirements for cooling tower impact assessments to support permitting of a cogeneration facility are also presented.

  11. Technical Evaluation of Side Stream Filtration for Cooling Towers...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Technical Evaluation of Side Stream Filtration for Cooling Towers Technical Evaluation of Side Stream Filtration for Cooling Towers Fact sheet provides an overview of side stream ...

  12. Flue gas injection control of silica in cooling towers. (Technical...

    Office of Scientific and Technical Information (OSTI)

    Technical Report: Flue gas injection control of silica in cooling towers. Citation Details In-Document Search Title: Flue gas injection control of silica in cooling towers. ...

  13. Use of nanofiltration to reduce cooling tower water consumption...

    Office of Scientific and Technical Information (OSTI)

    Use of nanofiltration to reduce cooling tower water consumption. Citation Details In-Document Search Title: Use of nanofiltration to reduce cooling tower water consumption. ...

  14. Coagulation chemistries for silica removal from cooling tower...

    Office of Scientific and Technical Information (OSTI)

    Coagulation chemistries for silica removal from cooling tower water. Citation Details In-Document Search Title: Coagulation chemistries for silica removal from cooling tower water. ...

  15. Cooling tower water treatment and reuse. (Conference) | SciTech...

    Office of Scientific and Technical Information (OSTI)

    Cooling tower water treatment and reuse. Citation Details In-Document Search Title: Cooling tower water treatment and reuse. No abstract prepared. Authors: Brady, Patrick Vane ; ...

  16. Microsoft Word - Cooling Tower Report.doc

    Office of Environmental Management (EM)

    ... White Paper, p. 4) Based on the best ... their worst (i.e., hot and humid, so that the cooling tower water is at its warmest), ... offshore oil and gas extraction facilities. ...

  17. Cooling Tower Report, October 2008 | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Cooling Tower Report, October 2008 Cooling Tower Report, October 2008 Electricity Reliability Impacts of a Mandatory Cooling Tower Rule for Existing Steam Generation Units Cooling Tower Report, October 2008 (1.94 MB) More Documents & Publications 2011: Air Quality Regulations Report Electricity Baseline Report for the US Power System 2011 Air Quality Regulations Report

  18. Wet/dry cooling tower and method

    DOEpatents

    Glicksman, Leon R.; Rohsenow, Warren R.

    1981-01-01

    A wet/dry cooling tower wherein a liquid to-be-cooled is flowed along channels of a corrugated open surface or the like, which surface is swept by cooling air. The amount of the surface covered by the liquid is kept small compared to the dry part thereof so that said dry part acts as a fin for the wet part for heat dissipation.

  19. Side Stream Filtration for Cooling Towers

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Side Stream Filtration for Cooling Towers Prepared for the U.S. Department of Energy Federal Energy Management Program By Pacifc Northwest National Laboratory X. Duan, J.L. Williamson, K.L McMordie Stoughton and B.K. Boyd October 2012 FEDERAL ENERGY MANAGEMENT PROGRAM i Contact Will Lintner, PE Federal Energy Management Program U.S. Department of Energy 1000 Independence Ave. SW Washington, DC 20585-0121 Phone: (202) 586-3120 E-mail: william.lintner@ee.doe.gov Cover photo: Cooling Towers. Photo

  20. Flue gas injection control of silica in cooling towers. (Technical...

    Office of Scientific and Technical Information (OSTI)

    Flue gas injection control of silica in cooling towers. Citation Details In-Document Search Title: Flue gas injection control of silica in cooling towers. You are accessing a ...

  1. Technical Evaluation of Side Stream Filtration for Cooling Towers

    SciTech Connect

    2012-10-01

    Cooling towers are an integral component of many refrigeration systems, providing comfort or process cooling across a broad range of applications. Cooling towers represent the point in a cooling system where heat is dissipated to the atmosphere through evaporation. Cooling towers are commonly used in industrial applications and in large commercial buildings to release waste heat extracted from a process or building system through evaporation of water.

  2. Side Stream Filtration for Cooling Towers

    SciTech Connect

    2012-10-20

    This technology evaluation assesses side stream filtration options for cooling towers, with an objective to assess key attributes that optimize energy and water savings along with providing information on specific technology and implementation options. This information can be used to assist Federal sites to determine which options may be most appropriate for their applications. This evaluation provides an overview of the characterization of side stream filtration technology, describes typical applications, and details specific types of filtration technology.

  3. Side Stream Filtration for Cooling Towers | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Side Stream Filtration for Cooling Towers Side Stream Filtration for Cooling Towers Report assesses side stream filtration options for cooling towers with an objective to assess key attributes that optimize energy and water savings and provide information about specific technology and implementation options. This information can be used to assist Federal sites to determine which options may be most appropriate for their applications. This report provides an overview of the characterization of

  4. Water-Efficient Technology Opportunity: Advanced Cooling Tower Controls |

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Department of Energy Advanced Cooling Tower Controls Water-Efficient Technology Opportunity: Advanced Cooling Tower Controls The Federal Energy Management Program (FEMP) identified advanced cooling tower controls as a water-saving technology that is relevant to the federal sector, is commercially available, and offers significant water-savings potential. This overview provides agencies with key information to deploy innovative products and systems that may otherwise be overlooked. It also

  5. The Damaging Effects of Earthquake Excitation on Concrete Cooling Towers

    SciTech Connect

    Abedi-Nik, Farhad; Sabouri-Ghomi, Saeid

    2008-07-08

    Reinforced concrete cooling towers of hyperbolic shell configuration find widespread application in utilities engaged in the production of electric power. In design of critical civil infrastructure of this type, it is imperative to consider all the possible loading conditions that the cooling tower may experience, an important loading condition in many countries is that of the earthquake excitation, whose influence on the integrity and stability of cooling towers is profound. Previous researches have shown that the columns supporting a cooling tower are sensitive to earthquake forces, as they are heavily loaded elements that do not possess high ductility, and understanding the behavior of columns under earthquake excitation is vital in structural design because they provide the load path for the self weight of the tower shell. This paper presents the results of a finite element investigation of a representative 'dry' cooling tower, using realistic horizontal and vertical acceleration data obtained from the recent and widely-reported Tabas, Naghan and Bam earthquakes in Iran. The results of both linear and nonlinear analyses are reported in the paper, the locations of plastic hinges within the supporting columns are identified and the ramifications of the plastic hinges on the stability of the cooling tower are assessed. It is concluded that for the (typical) cooling tower configuration analyzed, the columns that are instrumental in providing a load path are influenced greatly by earthquake loading, and for the earthquake data used in this study the representative cooling tower would be rendered unstable and would collapse under the earthquake forces considered.

  6. Property:CoolingTowerWaterUseSummerGross | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Property Name CoolingTowerWaterUseSummerGross Property Type Number Description Cooling Tower Water use (summer average) (afday) Gross. Retrieved from "http:en.openei.orgw...

  7. Property:CoolingTowerWaterUseAnnlAvgConsumed | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Property Name CoolingTowerWaterUseAnnlAvgConsumed Property Type Number Description Cooling Tower Water use (annual average) (afday) Consumed. Retrieved from "http:...

  8. Property:CoolingTowerWaterUseSummerConsumed | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Property Name CoolingTowerWaterUseSummerConsumed Property Type Number Description Cooling Tower Water use (summer average) (afday) Consumed. Retrieved from "http:...

  9. Purification of water from cooling towers and other heat exchange systems

    DOEpatents

    Sullivan; Enid J. , Carlson; Bryan J. , Wingo; Robert M. , Robison; Thomas W.

    2012-08-07

    The amount of silica in cooling tower water is reduced by passing cooling tower water through a column of silica gel.

  10. Use of nanofiltration to reduce cooling tower water consumption.

    SciTech Connect

    Altman, Susan Jeanne; Ciferno, Jared

    2010-10-01

    Nanofiltration (NF) can effectively treat cooling-tower water to reduce water consumption and maximize water usage efficiency of thermoelectric power plants. A pilot is being run to verify theoretical calculations. A side stream of water from a 900 gpm cooling tower is being treated by NF with the permeate returning to the cooling tower and the concentrate being discharged. The membrane efficiency is as high as over 50%. Salt rejection ranges from 77-97% with higher rejection for divalent ions. The pilot has demonstrated a reduction of makeup water of almost 20% and a reduction of discharge of over 50%.

  11. Use of nanofiltration to reduce cooling tower water usage.

    SciTech Connect

    Sanchez, Andres L.; Everett, Randy L.; Jensen, Richard Pearson; Cappelle, Malynda A.; Altman, Susan Jeanne

    2010-09-01

    Nanofiltration (NF) can effectively treat cooling-tower water to reduce water consumption and maximize water usage efficiency of thermoelectric power plants. A pilot is being run to verify theoretical calculations. A side stream of water from a 900 gpm cooling tower is being treated by NF with the permeate returning to the cooling tower and the concentrate being discharged. The membrane efficiency is as high as over 50%. Salt rejection ranges from 77-97% with higher rejection for divalent ions. The pilot has demonstrated a reduction of makeup water of almost 20% and a reduction of discharge of over 50%.

  12. Cooling tower fill fouling control in a geothermal power plant

    SciTech Connect

    Yu, F.P.; Ginn, L.D.; McCoy, W.F.; Castanieto, H.

    1998-12-31

    Since its first introduction to the market in the 1970s, cooling tower film fill technology has significantly increased thermal performance and reduced the size of cooling towers. However, the narrow spaces between film fill sheets make them susceptible to fouling. Without proper chemical treatment, deposits can accumulate within the film fill resulting in reduced tower efficiency, increased fouling and plugging of the fill. These phenomena could eventually lead to collapse of the tower structure, This paper describes a new approach to remedy the high efficiency film fill fouling problem in a geothermal power plant. The plant has a long history of fill fouling problems due to a very complex make-up water chemistry and desert-related environmental conditions. In recent years, various biocide and biodispersant treatments have significantly improved fouling control by slowing down tower fill deposition rates. However, no program has been successful in reducing fill weights, especially during the summer months. Within six weeks after starting a new control program, the average weight of the tower fill deposits dropped 22% and thermal performance of the cooling tower increased 20%. The treatment resulted in significant improvements in cooling tower operation and power production efficiency.

  13. CFD MODELING AND ANALYSIS FOR A-AREA AND H-AREA COOLING TOWERS

    SciTech Connect

    Lee, S.; Garrett, A.; Bollinger, J.

    2009-09-02

    Mechanical draft cooling towers are designed to cool process water via sensible and latent heat transfer to air. Heat and mass transfer take place simultaneously. Heat is transferred as sensible heat due to the temperature difference between liquid and gas phases, and as the latent heat of the water as it evaporates. Mass of water vapor is transferred due to the difference between the vapor pressure at the air-liquid interface and the partial pressure of water vapor in the bulk of the air. Equations to govern these phenomena are discussed here. The governing equations are solved by taking a computational fluid dynamics (CFD) approach. The purpose of the work is to develop a three-dimensional CFD model to evaluate the flow patterns inside the cooling tower cell driven by cooling fan and wind, considering the cooling fans to be on or off. Two types of the cooling towers are considered here. One is cross-flow type cooling tower located in A-Area, and the other is counterflow type cooling tower located in H-Area. The cooling tower located in A-Area is mechanical draft cooling tower (MDCT) consisting of four compartment cells as shown in Fig. 1. It is 13.7m wide, 36.8m long, and 9.4m high. Each cell has its own cooling fan and shroud without any flow communications between two adjacent cells. There are water distribution decks on both sides of the fan shroud. The deck floor has an array of about 25mm size holes through which water droplet falls into the cell region cooled by the ambient air driven by fan and wind, and it is eventually collected in basin area. As shown in Fig. 1, about 0.15-m thick drift eliminator allows ambient air to be humidified through the evaporative cooling process without entrainment of water droplets into the shroud exit. The H-Area cooling tower is about 7.3 m wide, 29.3 m long, and 9.0 m high. Each cell has its own cooling fan and shroud, but each of two corner cells has two panels to shield wind at the bottom of the cells. There is some

  14. 2010sr27[cooling_tower_complete].doc

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    ames-r.giusti@srs.gov Paivi Nettamo, SRNS, (803) 952-6938 paivi.nettamo@srs.gov K Cooling Tower Project Reaches Completion Aiken, S.C. - One of the most visual milestones of...

  15. Environmental Impacts from the Operation of Cooling Towers at SRP

    SciTech Connect

    Smith, F.G. III

    2001-06-26

    An assessment has been made of the environmental effects that would occur from the operation of cooling towers at the SRP reactors. A more realistic numerical model of the cooling tower plume has been used to reassess the environmental impacts. The following effects were considered: (1) the occurrence of fog and ice and their impact on nearby structures, (2) drift and salt deposition from the plume, (3) the length and height of the visible plume, and (4) the possible dose from tritium.

  16. Property:CoolingTowerWaterUseWinterConsumed | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    gTowerWaterUseWinterConsumed Property Type Number Description Cooling Tower Water use (winter average) (afday) Consumed. Retrieved from "http:en.openei.orgw...

  17. Add helper cooling towers to control discharge temperatures

    SciTech Connect

    Lander, J.; Christensen, G.

    1993-04-01

    This article describes the retrofitting of helper cooling towers to the Crystal River energy complex to reduce thermal pollution to the Gulf of Mexico. The topics of the article include the design concept, evaluation of design alternatives, a project description, economic evaluation, marine organism control, power requirements, and auxiliary systems.

  18. Property:CoolingTowerWaterUseAnnlAvgGross | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Property Name CoolingTowerWaterUseAnnlAvgGross Property Type Number Description Cooling Tower Water use (annual average) (afday) Gross. Retrieved from "http:en.openei.orgw...

  19. Airfoils for Enhanced Wind Turbine and Cooling Tower Efficiency - Energy

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Innovation Portal Wind Energy Wind Energy Find More Like This Return to Search Airfoils for Enhanced Wind Turbine and Cooling Tower Efficiency National Renewable Energy Laboratory Contact NREL About This Technology Technology Marketing Summary Wind power and capacity has risen dramatically with a 2015 increase in global capacity of 23.2%, according to Navigant's 2016 World Wind Energy Market Update. This growth in wind capacity has occurred due to the increase in both on- and off-shore wind

  20. Cooling-tower fan airfoils - Energy Innovation Portal

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    99,524 Site Map Printable Version Share this resource About Search Categories (15) Advanced Materials Biomass and Biofuels Building Energy Efficiency Electricity Transmission Energy Analysis Energy Storage Geothermal Hydrogen and Fuel Cell Hydropower, Wave and Tidal Industrial Technologies Solar Photovoltaic Solar Thermal Startup America Vehicles and Fuels Wind Energy Partners (27) Visual Patent Search Success Stories Find More Like This Return to Search Cooling-tower fan airfoils United States

  1. Technical Evaluation of Side Stream Filtration for Cooling Towers

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Cooling Towers (photo from Pacific Northwest National Laboratory) * Scaling: Scaling is the precipitation of dissolved mineral components that have become saturated in solution, which can lower effciency of the system. * Fouling: Fouling occurs when suspended particles or biologic growth forms an insulating flm on heat transfer surfaces. Common foulants include organic matter, process oils, and silt, which can also lower system performance. * Microbiological Activity: Microbiological activity

  2. Property:CoolingTowerWaterUseWinterGross | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    lingTowerWaterUseWinterGross Property Type Number Description Cooling Tower Water use (winter average) (afday) Gross. Retrieved from "http:en.openei.orgwindex.php?titleProper...

  3. Environmental assessment of air quality, noise and cooling tower drift from the Jersey City Total Energy Demonstration

    SciTech Connect

    Davis, W.T.; Kolb, J.O.

    1980-06-01

    This assessment covers three specific effects from the operation of the Total Energy (TE) demonstration: (1) air quality from combustion emissions of 600 kW diesel engines and auxiliary boilers fueled with No. 2 distillate oil, (2) noise levels from TE equipment operation, (3) cooling tower drift from two, 2220 gpm, forced-draft cooling towers. For the air quality study, measurements were performed to determine both the combustion emission rates and ground-level air quality at the Demonstration site. Stack analysis of NO/sub x/, SO/sub 2/, CO, particulates, and total hydrocarbons characterized emission rates over a range of operating conditions. Ground-level air quality was monitored during two six-week periods during the summer and winter of 1977. The noise study was performed by measuring sound levels in db(A) in the area within approximately 60 m of the CEB. The noise survey investigated the effects on noise distribution of different wind conditions, time of day or night, and condition of doors - open or closed - near the diesel engines in the CEB. In the cooling tower study, drift emission characteristics were measured to quantify the drift emission before and after cleaning of the tower internals to reduce fallout of large drift droplets in the vicinity of the CEB.

  4. Coagulation chemistries for silica removal from cooling tower water.

    SciTech Connect

    Nyman, May Devan; Altman, Susan Jeanne; Stewart, Tom

    2010-02-01

    The formation of silica scale is a problem for thermoelectric power generating facilities, and this study investigated the potential for removal of silica by means of chemical coagulation from source water before it is subjected to mineral concentration in cooling towers. In Phase I, a screening of many typical as well as novel coagulants was carried out using concentrated cooling tower water, with and without flocculation aids, at concentrations typical for water purification with limited results. In Phase II, it was decided that treatment of source or make up water was more appropriate, and that higher dosing with coagulants delivered promising results. In fact, the less exotic coagulants proved to be more efficacious for reasons not yet fully determined. Some analysis was made of the molecular nature of the precipitated floc, which may aid in process improvements. In Phase III, more detailed study of process conditions for aluminum chloride coagulation was undertaken. Lime-soda water softening and the precipitation of magnesium hydroxide were shown to be too limited in terms of effectiveness, speed, and energy consumption to be considered further for the present application. In Phase IV, sodium aluminate emerged as an effective coagulant for silica, and the most attractive of those tested to date because of its availability, ease of use, and low requirement for additional chemicals. Some process optimization was performed for coagulant concentration and operational pH. It is concluded that silica coagulation with simple aluminum-based agents is effective, simple, and compatible with other industrial processes.

  5. Method and system for simulating heat and mass transfer in cooling towers

    DOEpatents

    Bharathan, Desikan; Hassani, A. Vahab

    1997-01-01

    The present invention is a system and method for simulating the performance of a cooling tower. More precisely, the simulator of the present invention predicts values related to the heat and mass transfer from a liquid (e.g., water) to a gas (e.g., air) when provided with input data related to a cooling tower design. In particular, the simulator accepts input data regarding: (a) cooling tower site environmental characteristics; (b) cooling tower operational characteristics; and (c) geometric characteristics of the packing used to increase the surface area within the cooling tower upon which the heat and mass transfer interactions occur. In providing such performance predictions, the simulator performs computations related to the physics of heat and mass transfer within the packing. Thus, instead of relying solely on trial and error wherein various packing geometries are tested during construction of the cooling tower, the packing geometries for a proposed cooling tower can be simulated for use in selecting a desired packing geometry for the cooling tower.

  6. Cooling tower and plume modeling for satellite remote sensing applications

    SciTech Connect

    Powers, B.J.

    1995-05-01

    It is often useful in nonproliferation studies to be able to remotely estimate the power generated by a power plant. Such information is indirectly available through an examination of the power dissipated by the plant. Power dissipation is generally accomplished either by transferring the excess heat generated into the atmosphere or into bodies of water. It is the former method with which we are exclusively concerned in this report. We discuss in this report the difficulties associated with such a task. In particular, we primarily address the remote detection of the temperature associated with the condensed water plume emitted from the cooling tower. We find that the effective emissivity of the plume is of fundamental importance for this task. Having examined the dependence of the plume emissivity in several IR bands and with varying liquid water content and droplet size distributions, we conclude that the plume emissivity, and consequently the plume brightness temperature, is dependent upon not only the liquid water content and band, but also upon the droplet size distribution. Finally, we discuss models dependent upon a detailed point-by-point description of the hydrodynamics and thermodynamics of the plume dynamics and those based upon spatially integrated models. We describe in detail a new integral model, the LANL Plume Model, which accounts for the evolution of the droplet size distribution. Some typical results obtained from this model are discussed.

  7. Biocide usage in cooling towers in the electric power and petroleum refining industries

    SciTech Connect

    Veil, J.; Rice, J.K.; Raivel, M.E.S.

    1997-11-01

    Cooling towers users frequently apply biocides to the circulating cooling water to control growth of microorganisms, algae, and macroorganisms. Because of the toxic properties of biocides, there is a potential for the regulatory controls on their use and discharge to become increasingly more stringent. This report examines the types of biocides used in cooling towers by companies in the electric power and petroleum refining industries, and the experiences those companies have had in dealing with agencies that regulate cooling tower blowdown discharges. Results from a sample of 67 electric power plants indicate that the use of oxidizing biocides (particularly chlorine) is favored. Quaternary ammonia salts (quats), a type of nonoxidizing biocide, are also used in many power plant cooling towers. The experience of dealing with regulators to obtain approval to discharge biocides differs significantly between the two industries. In the electric power industry, discharges of any new biocide typically must be approved in writing by the regulatory agency. The approval process for refineries is less formal. In most cases, the refinery must notify the regulatory agency that it is planning to use a new biocide, but the refinery does not need to get written approval before using it. The conclusion of the report is that few of the surveyed facilities are having any difficulty in using and discharging the biocides they want to use.

  8. Impact of environmental concerns on cooling-tower design and operation

    SciTech Connect

    Hensley, J.C.

    1981-01-01

    New and sometimes unexpected environmental concerns surface from time to time, and each has its special effect on the selection, pricing, and operation of cooling towers. This paper discusses the following concerns, which are either current or are becoming significant: water conservation, energy conservation, noise, drift, blowdown, visual impact, and construction materials that are environmentally sensitive. 3 refs.

  9. Experimental optimization of cooling-tower-fan control based on field data. Master's thesis

    SciTech Connect

    Herman, D.L.

    1991-04-01

    Energy costs continue to play an important role in the decision-making process for building design and operation. Since the chiller, cooling tower fans, and associated pumps consume the largest fraction of energy in a heating, ventilating, and air-conditioning (HVAC) system, the control of these components is of major importance in determining building energy use. A significant control parameter for the chilled water system is the minimum entering condenser water set point temperature at which the cooling tower fans are cycled on and off, several studies have attempted to determine the optimum value for this minimum set point temperature, but direct measurements are not available to validate these studies. The purpose of this study was to experimentally determine the optimum minimum entering condenser water set point temperature from field data based on minimum energy consumption and to validate a chilled water system analytical model previously developed in earlier work. The total chiller system electrical consumption (chiller and cooling tower fan energy) was measured for four entering condensor water set point temperatures (70, 75, 80, and 85 deg F). The field results were compared to results obtained using an analytical model previously developed in a thesis entitled Optimized Design of a Commercial Building Chiller/Cooling Tower System, written by Joyce.

  10. A STUDY ON LEGIONELLA PNEUMOPHILA, WATER CHEMISTRY, AND ATMOSPHERIC CONDITIONS IN COOLING TOWERS AT THE SAVANNAH RIVER SITE

    SciTech Connect

    Smith, C.; Brigmon, R.

    2009-10-20

    Legionnaires disease is a pneumonia caused by the inhalation of the bacterium Legionella pneumophila. The majority of illnesses have been associated with cooling towers since these devices can harbor and disseminate the bacterium in the aerosolized mist generated by these systems. Historically, Savannah River Site (SRS) cooling towers have had occurrences of elevated levels of Legionella in all seasons of the year and in patterns that are difficult to predict. Since elevated Legionella in cooling tower water are a potential health concern a question has been raised as to the best control methodology. In this work we analyze available chemical, biological, and atmospheric data to determine the best method or key parameter for control. The SRS 4Q Industrial Hygiene Manual, 4Q-1203, 1 - G Cooling Tower Operation and the SRNL Legionella Sampling Program, states that 'Participation in the SRNL Legionella Sampling Program is MANDATORY for all operating cooling towers'. The resulting reports include L. pneumophila concentration information in cells/L. L. pneumophila concentrations >10{sup 7} cells/L are considered elevated and unsafe so action must be taken to reduce these densities. These remedial actions typically include increase biocide addition or 'shocking'. Sometimes additional actions are required if the problem persists including increase tower maintenance (e.g. cleaning). Evaluation of 14 SRS cooling towers, seven water quality parameters, and five Legionella serogroups over a three-plus year time frame demonstrated that cooling tower water Legionella densities varied widely though out this time period. In fact there was no one common consistent significant variable across all towers. The significant factors that did show up most frequently were related to suspended particulates, conductivity, pH, and dissolved oxygen, not chlorine or bromine as might be expected. Analyses of atmospheric data showed that there were more frequent significant elevated Legionella

  11. Tracking of smokestack and cooling tower plumes using wind measurements at different levels

    SciTech Connect

    Miller, R.L.; Patrinos, A.A.N.

    1980-08-01

    Relationships between cooling tower and smokestack plumes at the Bowen Electric Generating Plant in northwestern Georgia and wind direction measurements at levels from the surface at 850 mb (approx. 1.5 km) are examined. The wind measurements play an important role in estimating plume directions which in turn are utilized to establish control and target (upwind and downwind) areas for a study of plant-induced precipitation modification. Fifty-two plume observations were made during a three week period in December 1979. Results indicate that a windset (4.5 km from the plant) mounted at a level approximating that of the cooling tower plume is a better predictor of plume direction than surface windsets (1.0 km from the plant) or 850 mb level winds. However, an apparent topographical influence on the wind direction measurements at the plume-level windset site somewhat limits its plume tracking capability, at least for ambient winds from the SW quadrant.

  12. AUTOMATED DEAD-END ULTRAFILTRATION FOR ENHANCED SURVEILLANCE OF LEGIONELLA 2 PNEUMOPHILA AND LEGIONELLA SPP. IN COOLING TOWER WATERS

    SciTech Connect

    Brigmon, R.; Leskinen, S.; Kearns, E.; Jones, W.; Miller, R.; Betivas, C.; Kingsley, M.; Lim, D.

    2011-10-10

    Detection of Legionella pneumophila in cooling towers and domestic hot water systems involves concentration by centrifugation or membrane filtration prior to inoculation onto growth media or analysis using techniques such as PCR or immunoassays. The Portable Multi-use Automated Concentration System (PMACS) was designed for concentrating microorganisms from large volumes of water in the field and was assessed for enhancing surveillance of L. pneumophila at the Savannah River Site, SC. PMACS samples (100 L; n = 28) were collected from six towers between August 2010 and April 2011 with grab samples (500 ml; n = 56) being collected before and after each PMACS sample. All samples were analyzed for the presence of L. pneumophila by direct fluorescence immunoassay (DFA) using FITC-labeled monoclonal antibodies targeting serogroups 1, 2, 4 and 6. QPCR was utilized for detection of Legionella spp. in the same samples. Counts of L. pneumophila from DFA and of Legionella spp. from qPCR were normalized to cells/L tower water. Concentrations were similar between grab and PMACS samples collected throughout the study by DFA analysis (P = 0.4461; repeated measures ANOVA). The same trend was observed with qPCR. However, PMACS concentration proved advantageous over membrane filtration by providing larger volume, more representative samples of the cooling tower environment, which led to reduced variability among sampling events and increasing the probability of detection of low level targets. These data highlight the utility of the PMACS for enhanced surveillance of L. pneumophila by providing improved sampling of the cooling tower environment.

  13. Wet cooling towers: rule-of-thumb design and simulation (Technical...

    Office of Scientific and Technical Information (OSTI)

    provides information useful in power plant cycle optimization, including tower dimensions, water consumption rate, exit air temperature, power requirements and construction cost. ...

  14. Technology to Facilitate the Use of Impaired Waters in Cooling Towers

    SciTech Connect

    Colborn, Robert

    2012-04-30

    The project goal was to develop an effective silica removal technology and couple that with existing electro-dialysis reversal (EDR) technology to achieve a cost effective treatment for impaired waters to allow for their use in the cooling towers of coal fired power plants. A quantitative target of the program was a 50% reduction in the fresh water withdrawal at a levelized cost of water of $3.90/Kgal. Over the course of the program, a new molybdenum-modified alumina was developed that significantly outperforms existing alumina materials in silica removal both kinetically and thermodynamically. The Langmuir capacity is 0.11g silica/g adsorbent. Moreover, a low cost recycle/regeneration process was discovered to allow for multiple recycles with minimal loss in activity. On the lab scale, five runs were carried out with no drop in performance between the second and fifth run in ability to absorb the silica from water. The Mo-modified alumina was successfully prepared on a multiple kilogram scale and a bench scale model column was used to remove 100 ppm of silica from 400 liters of simulated impaired water. Significant water savings would result from such a process and the regeneration process could be further optimized to reduce water requirements. Current barriers to implementation are the base cost of the adsorbent material and the fine powder form that would lead to back pressure on a large column. If mesoporous materials become more commonly used in other areas and the price drops from volume and process improvements, then our material would also lower in price because the amount of molybdenum needed is low and no additional processing is required. There may well be engineering solutions to the fine powder issue; in a simple concept experiment, we were able to pelletize our material with Boehmite, but lost performance due to a dramatic decrease in surface area.

  15. NASA Marshall Space Flight Center Improves Cooling System Performance: Best Management Practice Case Study #10: Cooling Towers (Fact Sheet)

    SciTech Connect

    Not Available

    2011-02-01

    National Aeronautics and Space Administration's (NASA) Marshall Space Flight Center (MSFC) has a longstanding sustainability program that revolves around energy and water efficiency as well as environmental protection. MSFC identified a problematic cooling loop with six separate compressor heat exchangers and a history of poor efficiency. The facility engineering team at MSFC partnered with Flozone Services, Incorporated to implement a comprehensive water treatment platform to improve the overall efficiency of the system.

  16. Draft

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Closing the Circle: The Department of Energy and Environmental Management 1942-1994 F.G. Gosling and Terrence R. Fehner History Division Executive Secretariat Department of Energy March 1994 Draft Our mission at the Department of Energy is no less significant than trying to close the circle on the splitting of the atom begun a half-century ago by [the Manhattan Project]. -Tom Grumbly Draft * 3 EM Overview Closing the Circle: The Department of Energy and Environmental Management 1942-1994 Table

  17. DRAFT

    National Nuclear Security Administration (NNSA)

    Environmental Assessment for NorthStar Medical Technologies LLC Commercial Domestic Production of the Medical Isotope Molybdenum-99 (DOE/EA-1929) Prepared for U.S. Department of Energy National Nuclear Security Administration Defense Nuclear Nonproliferation/ Global Threat Reduction Initiative July 2012 EA for NorthStar Medical Technologies LLC Commercial Domestic Production of the Medical Isotope Mo-99 DRAFT ii This Page Intentionally Left Blank EA for NorthStar Medical Technologies LLC

  18. Lawrence Livermore National Laboratory (LLNL) Experimental Test Site (Site 300) Salinity Evaluation and Minimization Plan for Cooling Towers and Mechanical Equipment Discharges

    SciTech Connect

    Daily III, W D

    2010-02-24

    This document was created to comply with the Central Valley Regional Water Quality Control Board (CVRWQCB) Waste Discharge Requirement (Order No. 98-148). This order established new requirements to assess the effect of and effort required to reduce salts in process water discharged to the subsurface. This includes the review of technical, operational, and management options available to reduce total dissolved solids (TDS) concentrations in cooling tower and mechanical equipment water discharges at Lawrence Livermore National Laboratory's (LLNL's) Experimental Test Site (Site 300) facility. It was observed that for the six cooling towers currently in operation, the total volume of groundwater used as make up water is about 27 gallons per minute and the discharge to the subsurface via percolation pits is 13 gallons per minute. The extracted groundwater has a TDS concentration of 700 mg/L. The cooling tower discharge concentrations range from 700 to 1,400 mg/L. There is also a small volume of mechanical equipment effluent being discharged to percolation pits, with a TDS range from 400 to 3,300 mg/L. The cooling towers and mechanical equipment are maintained and operated in a satisfactory manner. No major leaks were identified. Currently, there are no re-use options being employed. Several approaches known to reduce the blow down flow rate and/or TDS concentration being discharged to the percolation pits and septic systems were reviewed for technical feasibility and cost efficiency. These options range from efforts as simple as eliminating leaks to implementing advanced and innovative treatment methods. The various options considered, and their anticipated effect on water consumption, discharge volumes, and reduced concentrations are listed and compared in this report. Based on the assessment, it was recommended that there is enough variability in equipment usage, chemistry, flow rate, and discharge configurations that each discharge location at Site 300 should be

  19. Request for comments on draft Regulatory Guide, ''Best-estimate calculations of emergency core cooling system performance''

    SciTech Connect

    Not Available

    1987-03-01

    The US Nuclear Regulatory Commission (NRC) is proposing to amend the requirements of 10 CFR Part 50, ''Domestic Licensing of Production and Utilization Facilities.'' These amendments would allow licensees to use realistic calculations, as opposed to the currently required conservative calculations, to show the acceptability of the emergency core cooling system (ECCS) performance. The proposed amendments would also require that the uncertainty of each realistic calculation be determined and that this uncertainty be included in the calculation as a safety factor. The NRC staff has prepared this regulatory guide in draft form to allow the public to participate in the development of guidance on acceptable methods of complying with the proposed amendments.

  20. TITLE AUTHORS SUBJECT SUBJECT RELATED DESCRIPTION PUBLISHER AVAILABILI...

    Office of Scientific and Technical Information (OSTI)

    DRAFT COOLING TOWERS PERFORMANCE SIMULATION COST DESIGN HEAT TRANSFER OPERATION WATER REQUIREMENTS COOLING TOWERS ENERGY TRANSFER MECHANICAL STRUCTURES TOWERS Geothermal...

  1. GEOTHERMAL ENERGY; 20 FOSSIL-FUELED POWER PLANTS; MECHANICAL...

    Office of Scientific and Technical Information (OSTI)

    DRAFT COOLING TOWERS; PERFORMANCE; SIMULATION; COST; DESIGN; HEAT TRANSFER; OPERATION; WATER REQUIREMENTS; COOLING TOWERS; ENERGY TRANSFER; MECHANICAL STRUCTURES; TOWERS...

  2. "Title","Creator/Author","Publication Date","OSTI Identifier...

    Office of Scientific and Technical Information (OSTI)

    DRAFT COOLING TOWERS; PERFORMANCE; SIMULATION; COST; DESIGN; HEAT TRANSFER; OPERATION; WATER REQUIREMENTS; COOLING TOWERS; ENERGY TRANSFER; MECHANICAL STRUCTURES; TOWERS...

  3. Convection towers

    DOEpatents

    Prueitt, Melvin L.

    1995-01-01

    Convection towers which are capable of cleaning the pollution from large quantities of air, of generating electricity, and of producing fresh water utilize the evaporation of water sprayed into the towers to create strong airflows and to remove pollution from the air. Turbines in tunnels at the skirt section of the towers generate electricity, and condensers produce fresh water.

  4. Convection towers

    DOEpatents

    Prueitt, Melvin L.

    1994-01-01

    Convection towers which are capable of cleaning the pollution from large quantities of air and of generating electricity utilize the evaporation of water sprayed into the towers to create strong airflows and to remove pollution from the air. Turbines in tunnels at the skirt section of the towers generate electricity. Other embodiments may also provide fresh water, and operate in an updraft mode.

  5. Convection towers

    DOEpatents

    Prueitt, M.L.

    1996-01-16

    Convection towers which are capable of cleaning the pollution from large quantities of air, of generating electricity, and of producing fresh water utilize the evaporation of water sprayed into the towers to create strong airflows and to remove pollution from the air. Turbines in tunnels at the skirt section of the towers generate electricity, and condensers produce fresh water. 6 figs.

  6. Convection towers

    DOEpatents

    Prueitt, Melvin L.

    1996-01-01

    Convection towers which are capable of cleaning the pollution from large quantities of air, of generating electricity, and of producing fresh water utilize the evaporation of water sprayed into the towers to create strong airflows and to remove pollution from the air. Turbines in tunnels at the skirt section of the towers generate electricity, and condensers produce fresh water.

  7. Final draft: IEA Task 1. Report on Subtask D, optimization of solar heating and cooling systems

    SciTech Connect

    Freeman, T.L.

    1981-03-01

    A review of general techniques and specific methods useful in the optimization of solar heating and cooling systems is undertaken. A discussion of the state-of-the-art and the principal problems in both the simplified thermal performance analysis and economic analysis portions of the optimization problem are presented. Sample economic analyses are performed using several widely used economic criteria. The predicted thermal results of one typical, widely used simplified method is compared to detailed simulation results. A methodology for and the results of a sensitivity study of key economic parameters in the life cycle cost method are presented. Finally, a simple graphical optimization technique based on the life cycle cost method is proposed.

  8. Convection towers

    DOEpatents

    Prueitt, M.L.

    1994-02-08

    Convection towers which are capable of cleaning the pollution from large quantities of air and of generating electricity utilize the evaporation of water sprayed into the towers to create strong airflows and to remove pollution from the air. Turbines in tunnels at the skirt section of the towers generate electricity. Other embodiments may also provide fresh water, and operate in an updraft mode. 5 figures.

  9. SunTower Power Tower and Receiver

    Energy.gov [DOE]

    This photograph shows a Sierra SunTower power tower, one of two towers at eSolar’s 5 megawatt (MW) commercial CSP plant in Lancaster, California.

  10. Armor Tower, Inc.

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Mr. Edward Rosenbloom Chief Executive Officer Armor Tower, Inc. P.O. Box 49779 Charlotte, North Carolina 28277 WEL-2015-06 Dear Mr. Rosenbloom: The Office of Enterprise Assessments' Office of Enforcement has completed an investigation into an electrical shock incident involving an Armor Tower, Inc. (Armor Tower) employee at the Brookhaven National Laboratory (BNL). Armor Tower is a second-tier subcontractor to Brookhaven Science Associates, LLC (BSA), which is the Department of Energy's (DOE)

  11. Steam-Electric Power-Plant-Cooling Handbook

    SciTech Connect

    Sonnichsen, J.C.; Carlson, H.A.; Charles, P.D.; Jacobson, L.D.; Tadlock, L.A.

    1982-02-01

    The Steam-Electric Power Plant Cooling Handbook provides summary data on steam-electric power plant capacity, generation and number of plants for each cooling means, by Electric Regions, Water Resource Regions and National Electric Reliability Council Areas. Water consumption by once-through cooling, cooling ponds and wet evaporative towers is discussed and a methodology for computation of water consumption is provided for a typical steam-electric plant which uses a wet evaporative tower or cooling pond for cooling.

  12. Solar power tower

    SciTech Connect

    None, None

    2009-01-18

    The solar power tower section of the Renewable Energy Technology Characterizations describes the technical and economic status of this emerging renewable energy option for electricity supply.

  13. Wind tower service lift

    DOEpatents

    Oliphant, David; Quilter, Jared; Andersen, Todd; Conroy, Thomas

    2011-09-13

    An apparatus used for maintaining a wind tower structure wherein the wind tower structure may have a plurality of legs and may be configured to support a wind turbine above the ground in a better position to interface with winds. The lift structure may be configured for carrying objects and have a guide system and drive system for mechanically communicating with a primary cable, rail or other first elongate member attached to the wind tower structure. The drive system and guide system may transmit forces that move the lift relative to the cable and thereby relative to the wind tower structure. A control interface may be included for controlling the amount and direction of the power into the guide system and drive system thereby causing the guide system and drive system to move the lift relative to said first elongate member such that said lift moves relative to said wind tower structure.

  14. Dark Colored Cool Pigments for Materials Exposed to the Sun ...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Efficiency Find More Like This Return to Search Dark Colored Cool Pigments for Materials Exposed to the Sun ... for electronics (e.g., cell phone towers) Technology ...

  15. Tower Camera Handbook

    SciTech Connect

    Moudry, D

    2005-01-01

    The tower camera in Barrow provides hourly images of ground surrounding the tower. These images may be used to determine fractional snow cover as winter arrives, for comparison with the albedo that can be calculated from downward-looking radiometers, as well as some indication of present weather. Similarly, during spring time, the camera images show the changes in the ground albedo as the snow melts. The tower images are saved in hourly intervals. In addition, two other cameras, the skydeck camera in Barrow and the piling camera in Atqasuk, show the current conditions at those sites.

  16. Composite Tower Solutions | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    needs, including meteorological towers, weather towers, and data collection and instrumentation towers. Coordinates: 40.233765, -111.668509 Show Map Loading map......

  17. China Solar Tower Development | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Tower Development Jump to: navigation, search Name: China Solar Tower Development Place: China Sector: Solar Product: Joint venture for development of solar towers in China,...

  18. MULTI-TUBE POWER LEADS TOWER FOR BEPCII IR MAGNETS.

    SciTech Connect

    JIA,L.X.; ZHANG,X.B.; WANG,L.; WANG,T.H.; YAO,Z.L.

    2004-05-11

    A power lead tower containing the multi-tube power leads is designed and under fabrication for the superconducting IR quadrupole magnets in the Beijing Electron Position Collider Upgrade (BEPCII). The lead tower consists of six pairs of gas-cooled leads for seven superconducting coils at various operating currents. The power lead is designed in a modular fashion, which can be easily applied to suit different operating current. The end copper block of the tube lead has a large cold mass that provide a large time constant in case of cooling flow interruption. A novel cryogenic electrical isolator is used for the leads.

  19. Concentrating Solar Power Tower Technology

    Energy.gov [DOE]

    In this b-roll, solar power towers' are systems that use an array of mirrors to focus the sun's energy on a tower-mounted heat exchanger to generate electricity.

  20. Cooling Towers: Understanding Key Components of Cooling Towers and How to Improve Water Efficiency

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Source: Paul Johnston-Knight Introduction Federal laws and regulations require Federal agencies to reduce water use and improve water effciency. Namely, Executive Order 13514 Federal Leadership in Environmental, Energy, and Economic Performance, requires an annual two percent reduction of water use intensity (water use per square foot of building space) for agency potable water consumption as well as a two percent reduction of water use for industrial, landscaping, and agricultural applica-

  1. Draft Minutes

    Energy.gov [DOE] (indexed site)

    ... For the initial advanced recycling reactor, the four teams recommended (1) sodium- cooled fast reactors with one team including gas-cooled reactors; (2) 300- to 500-MWe fast ...

  2. Building a Better Transmission Tower

    Energy.gov [DOE]

    Find out how new power lines may now require fewer towers per mile, reducing their environmental footprint and price, which in turn helps minimize costs for electric consumers.

  3. Concentrating Solar Power: Power Towers

    Office of Energy Efficiency and Renewable Energy (EERE)

    This video provides an overview of the principles, applications, and benefits of generating electricity using power towers, a concentrating solar power (CSP) technology. A brief animation explains...

  4. Draft- Predecisional

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Pre-decisional Draft U.S. National Laboratory Fukushima Support Network Purpose The National Laboratory Fukushima Support Network (NLFSN) operates under the Decommissioning & Environmental Management Working Group (DEMWG) of the US-Japan Bilateral Commission on Civil Nuclear Cooperation (the Bilateral Commission) to coordinate engagement among U.S. National Laboratories and Japanese organizations on strategies, approaches, technologies and other topics of mutual interest related to

  5. How to Build a Tower

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Volunteers - Sign Up About Science Bowl Curriculum and Activities How to Build a Motor The Great Marble Drop How to Build a Turbine How to Build a Tower Classroom...

  6. Tower Temperature and Humidity Sensors (TWR) Handbook

    SciTech Connect

    Cook, DR

    2010-02-01

    Three tall towers are installed at the Atmospheric Radiation Measurement (ARM) Climate Research Facility: a 60-meter triangular tower at the Southern Great Plains (SGP) Central Facility (CF), a 21-meter walkup scaffolding tower at the SGP Okmulgee forest site (E21), and a 40-meter triangular tower at the North Slope of Alaska (NSA) Barrow site. The towers are used for meteorological, radiological, and other measurements.

  7. Concentrating Solar Power Tower System Basics | Department of...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Tower System Basics Concentrating Solar Power Tower System Basics August 20, 2013 - 5:06pm Addthis In power tower concentrating solar power systems, numerous large, flat, ...

  8. Draft-O-Meter

    Education - Teach & Learn

    Students will learn an easy technique to measure the presence of drafts in their homes and classrooms.

  9. SMUD Kokhala Power Tower Study

    SciTech Connect

    Price, Henry W.; Whitney, Daniel D.; Beebe, H.I.

    1997-06-01

    Kokhala is the name of a new hybridized power tower design which integrates a nitrate-salt solar power tower with a gas turbine combined-cycle power plant. This integration achieves high value energy, low costs, and lower investor risk than a conventional solar only power tower plant. One of the primary advantages of this system is that it makes small power tower plants much more economically competitive with conventional power generation technologies. This paper is an overview of a study that performed a conceptual evaluation of a small (30 MWe) commercial plant suitable for the Sacramento Municipal Utility District`s (SMUD) Rancho Seco power plant site near Sacramento, California. This paper discusses the motivation for using a small hybrid solar plant and provides an overview of the analysis methodology used in the study. The results indicate that a power tower integrated with an advanced gas turbine, combined with Sacramento`s summer solar resource, could produce a low- risk, economically viable power generation project in the near future.

  10. Use of Air2Air Technology to Recover Fresh-Water from the Normal Evaporative Cooling Loss at Coal-Based Thermoelectric Power Plants

    SciTech Connect

    Ken Mortensen

    2009-06-30

    This program was undertaken to build and operate the first Air2Air{trademark} Water Conservation Cooling Tower at a power plant, giving a validated basis and capability for water conservation by this method. Air2Air{trademark} water conservation technology recovers a portion of the traditional cooling tower evaporate. The Condensing Module provides an air-to-air heat exchanger above the wet fill media, extracting the heat from the hot saturated moist air leaving in the cooling tower and condensing water. The rate of evaporate water recovery is typically 10%-25% annually, depending on the cooling tower location (climate).

  11. The Tower Shielding Facility: Its glorious past

    SciTech Connect

    Muckenthaler, F.J.

    1997-05-07

    The Tower Shielding Facility (TSF) is the only reactor facility in the US that was designed and built for radiation-shielding studies in which both the reactor source and shield samples could be raised into the air to allow measurements to be made without interference from ground scattering or other spurious effects. The TSF proved its usefulness as many different programs were successfully completed. It became active in work for the Defense Atomic Support Agency (DASA) Space Nuclear Auxiliary Power, Defense Nuclear Agency, Liquid Metal Fast Breeder Reactor Program, the Gas-Cooled and High-Temperature Gas-Cooled Reactor programs, and the Japanese-American Shielding Program of Experimental Research, just to mention a few of the more extensive ones. The history of the TSF as presented in this report describes the various experiments that were performed using the different reactors. The experiments are categorized as to the programs which they supported and placed in corresponding chapters. The experiments are described in modest detail, along with their purpose when appropriate. Discussion of the results is minimal, but references are given to more extensive topical reports.

  12. CSP Tower Air Brayton Combustor

    Energy.gov [DOE]

    This fact sheet describes a concentrating solar power tower air Brayton combustor project awarded under the DOE's 2012 SunShot CSP R&D award program. The team, led by the Southwest Research Institute, is working to develop an external combustor that allows for the mixing of CSP-heated air with natural gas in hybridized power plants. This project aims to increase the temperature capabilities of the CSP tower air receiver and gas turbine to 1,000ºC and achieve energy conversion efficiencies greater than 50%.

  13. Advanced low noise cooling fans

    SciTech Connect

    Spek, H.F. van der; Nelissen, P.J.M.

    1995-02-01

    The results from an intensive research program show that it is possible to reduce the sound power level of cooling fans by 15 dB(A) by altering blade cord width and swept leading and trailing edge lines. Combination with the reduction of the pressure drop can result in a step of 20 dB(A) and a reduction with 25 percent of the absorbed power. Testing was conducted in accordance with recognized international measuring standards and the results will be presented, including consequences for cooling tower and condenser design.

  14. Coagulation chemistries for silica removal from cooling tower...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Report Number(s): SAND2011-0800 TRN: US201109%%315 DOE Contract Number: AC04-94AL85000 Resource Type: Technical Report Research Org: Sandia National Laboratories Sponsoring Org: ...

  15. Best Management Practice #10: Cooling Tower Management | Department...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    The dissolved solids can also lead to corrosion problems. The concentration of dissolved ... increase, which can cause scale and corrosion problems unless carefully controlled. ...

  16. Use of Produced Water in Recirculated Cooling Systems at Power Generating Facilities

    SciTech Connect

    C. McGowin; M. DiFilippo; L. Weintraub

    2006-06-30

    technology could cool process water at cycles of concentration considered highly scale forming for mechanical draft cooling towers. At the completion of testing, there was no visible scale on the heat transfer surfaces and cooling was sustained throughout the test period. The application of the WARMF decision framework to the San Juan Basis showed that drought and increased temperature impact water availability for all sectors (agriculture, energy, municipal, industry) and lead to critical shortages. WARMF-ZeroNet, as part of the integrated ZeroNet decision support system, offers stakeholders an integrated approach to long-term water management that balances competing needs of existing water users and economic growth under the constraints of limited supply and potential climate change.

  17. Draft Tiered Rate Methodology

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    For Regional Dialogue Discussion Purposes Only Pre-Decisional Draft Tiered Rates Methodology March 7, 2008 Pre-decisional, Deliberative, For Discussion Purposes Only March 7,...

  18. ARM - Campaign Instrument - aerosol-tower-eml

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    (AEROSOL-TOWER-EML) Instrument Categories Aerosols Campaigns Remote Cloud Sensing (RCS) Field Evaluation Download Data Southern Great Plains, 1994.04.01 - 1994.05.31...

  19. GreenTower | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Sector: Solar Product: Developer of a solar chimney technology, with greenhouses for food production. Hopes to deploy this in Namibia. References: GreenTower1 This article...

  20. EIS-0451: Supplemental Draft Environmental Impact Statement ...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Supplemental Draft Environmental Impact Statement EIS-0451: Supplemental Draft ... Bonneville Power Administration (BPA) BPA prepared a supplemental draft EIS to evaluate an ...

  1. Improvement to Air2Air Technology to Reduce Fresh-Water Evaporative Cooling Loss at Coal-Based Thermoelectric Power Plants

    SciTech Connect

    Ken Mortensen

    2011-12-31

    This program was undertaken to enhance the manufacturability, constructability, and cost of the Air2Air{TM} Water Conservation and Plume Abatement Cooling Tower, giving a validated cost basis and capability. Air2Air{TM} water conservation technology recovers a portion of the traditional cooling tower evaporate. The Condensing Module provides an air-to-air heat exchanger above the wet fill media, extracting the heat from the hot saturated moist air leaving in the cooling tower and condensing water. The rate of evaporate water recovery is typically 10% - 25% annually, depending on the cooling tower location (climate). This program improved the efficiency and cost of the Air2Air{TM} Water Conservation Cooling Tower capability, and led to the first commercial sale of the product, as described.

  2. Wind turbine tower for storing hydrogen and energy

    DOEpatents

    Fingersh, Lee Jay

    2008-12-30

    A wind turbine tower assembly for storing compressed gas such as hydrogen. The tower assembly includes a wind turbine having a rotor, a generator driven by the rotor, and a nacelle housing the generator. The tower assembly includes a foundation and a tubular tower with one end mounted to the foundation and another end attached to the nacelle. The tower includes an in-tower storage configured for storing a pressurized gas and defined at least in part by inner surfaces of the tower wall. In one embodiment, the tower wall is steel and has a circular cross section. The in-tower storage may be defined by first and second end caps welded to the inner surface of the tower wall or by an end cap near the top of the tower and by a sealing element attached to the tower wall adjacent the foundation, with the sealing element abutting the foundation.

  3. Enforcement Letter, Armor Tower, Inc. | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Armor Tower, Inc. Enforcement Letter, Armor Tower, Inc. December 4, 2015 Worker Safety and Health Enforcement Letter issued to Armor Tower, Inc. On December 4, 2015, the U.S. Department of Energy (DOE) Office of Enterprise Assessments' Office of Enforcement issued an Enforcement Letter (WEL-2015-06) to Armor Tower, Inc., relating to a worker electrical shock that occurred while working on a meteorological tower at DOE's Brookhaven National Laboratory. Enforcement Letter, Armor Tower, Inc.

  4. Tower Water-Vapor Mixing Ratio

    SciTech Connect

    Guastad, Krista; Riihimaki, Laura; none,

    2013-04-01

    The purpose of the Tower Water-Vapor Mixing Ratio (TWRMR) value-added product (VAP) is to calculate water-vapor mixing ratio at the 25-meter and 60-meter levels of the meteorological tower at the Southern Great Plains (SGP) Central Facility.

  5. Concentrating Solar Power Projects - Power Tower Projects | Concentrat...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    The receiver at the top of the tower is glowing. Stretched-membrane heliostats with silvered polymer reflectors surround the Solar Two power tower in Daggett, California. Credit: ...

  6. Hydrogen Storage in Wind Turbine Towers: Cost Analysis and Conceptual...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    in Wind Turbine Towers: Cost Analysis and Conceptual Design Hydrogen Storage in Wind Turbine Towers: Cost Analysis and Conceptual Design Preprint 34851.pdf (366.26 KB) More ...

  7. Assessment of Parabolic Trough and Power Tower Solar Technology...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    of Parabolic Trough and Power Tower Solar Technology Cost and Performance Forecasts ... of Parabolic Trough and Power Tower Solar Technology Cost and Performance Forecasts ...

  8. Executive Summary: Assessment of Parabolic Trough and Power Tower...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    of Parabolic Trough and Power Tower Solar Technology Cost and Performance Forecasts ... of Parabolic Trough and Power Tower Solar Technology Cost and Performance Forecasts ...

  9. Tower Temperature and Humidity Sensors (TWR) Handbook (Technical...

    Office of Scientific and Technical Information (OSTI)

    (ARM) Climate Research Facility: a 60-meter triangular tower at the Southern Great Plains (SGP) Central Facility (CF), a 21-meter walkup scaffolding tower at the SGP Okmulgee ...

  10. Draft 2014 Annual Plan | Department of Energy

    Energy Saver

    Draft 2014 Annual Plan Draft 2014 Annual Plan Section 999: Draft 2014 Annual Plan Section 999 - Draft 2014 Annual Plan (4.52 MB) More Documents & Publications 2011 Annual Plan 2013 ...

  11. Biomass 2014 Draft Agenda

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Biomass 2014 Draft Agenda All topics and times are tentative and subject to change. Page | 1 BIOMASS 2014: Growing the Future Bioeconomy July 29-30, 2014, Washington Convention ...

  12. EIS-0481: Draft Programmatic Environmental Impact Statement ...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Programmatic Environmental Impact Statement EIS-0481: Draft Programmatic Environmental Impact Statement Engineered High Energy Crop (EHEC) Programs Draft Programmatic...

  13. EIS-0391: Draft Environmental Impact Statement | Department of...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Draft Environmental Impact Statement EIS-0391: Draft Environmental Impact Statement Tank ... EIS-0391: Draft Environmental Impact Statement, Summary (3.65 MB) EIS-0391: Draft ...

  14. EA-1906: Draft Environmental Assessment

    Energy.gov [DOE]

    Draft Environmental Assessment for Operations, Upgrades, and Consolidation at the Western Command Site, New Mexico, April 2012

  15. Draft Agenda | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Agenda Draft Agenda Draft agenda for the September 20-21, 2007 National Laboratory Fuel Cell Deployment Meeting. Draft Agenda (24.98 KB) More Documents & Publications Fuel Cell Meeting Agenda: Matching Federal Government Needs with Energy Efficient Fuel Cells Water Power Program Peer Review Meeting Agenda Hydrogen, Hydrocarbons, and Bioproduct Precursors from Wastewaters Workshop: Agenda and Objectives

  16. Showdown at the EM C(orral) | Department of Energy

    Energy.gov [DOE] (indexed site)

    for Team IES, whose design included an innovative building-integrated atrium and two evaporative passive down-draft towers that helped ventilate and cool the entire building....

  17. ON THE STRUCTURE AND STABILITY OF MAGNETIC TOWER JETS

    SciTech Connect

    Huarte-Espinosa, M.; Frank, A.; Blackman, E. G.; Ciardi, A.; Hartigan, P.; Lebedev, S. V.; Chittenden, J. P.

    2012-09-20

    Modern theoretical models of astrophysical jets combine accretion, rotation, and magnetic fields to launch and collimate supersonic flows from a central source. Near the source, magnetic field strengths must be large enough to collimate the jet requiring that the Poynting flux exceeds the kinetic energy flux. The extent to which the Poynting flux dominates kinetic energy flux at large distances from the engine distinguishes two classes of models. In magneto-centrifugal launch models, magnetic fields dominate only at scales {approx}< 100 engine radii, after which the jets become hydrodynamically dominated (HD). By contrast, in Poynting flux dominated (PFD) magnetic tower models, the field dominates even out to much larger scales. To compare the large distance propagation differences of these two paradigms, we perform three-dimensional ideal magnetohydrodynamic adaptive mesh refinement simulations of both HD and PFD stellar jets formed via the same energy flux. We also compare how thermal energy losses and rotation of the jet base affects the stability in these jets. For the conditions described, we show that PFD and HD exhibit observationally distinguishable features: PFD jets are lighter, slower, and less stable than HD jets. Unlike HD jets, PFD jets develop current-driven instabilities that are exacerbated as cooling and rotation increase, resulting in jets that are clumpier than those in the HD limit. Our PFD jet simulations also resemble the magnetic towers that have been recently created in laboratory astrophysical jet experiments.

  18. American Tower Company | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Company Jump to: navigation, search Name: American Tower Company Address: P.O. Box 29 Place: Shelby, Ohio Zip: 44875 Sector: Wind energy Product: Agriculture;Business and legal...

  19. CXAllenRadioTower2.pdf

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Allen Radio Tower Construction Project Program or Field Office: Southwestern Power Administration Location(s) (City/County/State): Allen, Pontotoc County, Oklahoma SWPA F 450.4 (Rev 05/14) Proposed Action Description: Southwestern Power Administration proposes to modify and reconstruct its Allen Radio Tower communications site as part of the Spectrum Relocation project. Categorical Exclusion(s) Applied: I 0 CFR I 02 1, Appendix B to SubQart D, Part Bl. I 0- Siting, construction and operation of

  20. Cooled railplug

    DOEpatents

    Weldon, William F.

    1996-01-01

    The railplug is a plasma ignitor capable of injecting a high energy plasma jet into a combustion chamber of an internal combustion engine or continuous combustion system. An improved railplug is provided which has dual coaxial chambers (either internal or external to the center electrode) that provide for forced convective cooling of the electrodes using the normal pressure changes occurring in an internal combustion engine. This convective cooling reduces the temperature of the hot spot associated with the plasma initiation point, particularly in coaxial railplug configurations, and extends the useful life of the railplug. The convective cooling technique may also be employed in a railplug having parallel dual rails using dual, coaxial chambers.

  1. Seismic response of offshore guyed towers

    SciTech Connect

    Jain, A.K.; Bisht, R.S.

    1993-12-31

    Seismic stresses in the offshore Guyed Tower assumes importance because of its flexural modes having smaller periods (in the range of 1 to 3 sec), which may attract considerable seismic forces. Since the displacement of the offshore Guyed Tower is generally guided by the rigid body mode corresponding to the fundamental period which lies between 20 to 40 sec., seismic excitation is relatively unimportant in relation to the towers` overall displacement behavior. The response of offshore Guyed Tower to ransom ground motion (E1 Centro earthquake, 1940) is investigated. The guyed tower is modeled as a uniform shear beam with a rotational spring at the base of the tower. The guylines are represented by a linearized spring whose force-excursion relationship is derived from a separate static analysis of the guylines. The dynamic equation of motion duly takes into account the pressure-drag effect produced due to fluid-structure interaction. The response is obtained in tim- domain using Newmark`s {beta} Time Integration Scheme.

  2. Cool Links

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Cool Links Cool Links Can't get enough science? Click on these links to learn more about science and innovations at the Lab and beyond! Science and learning activities Los Alamos National Laboratory links Bradbury Science Museum video The Town That Never Was Bradbury Science Museum video Heritage of Science (Stockpile Stewardship) Los Alamos National Laboratory Homepage A list of Los Alamos National Laboratory publications Los Alamos National Laboratory's periodic table website Los Alamos

  3. ARM: Three Meter Tower: video camera (Dataset) | SciTech Connect

    Office of Scientific and Technical Information (OSTI)

    ARM: Three Meter Tower: video camera Citation Details In-Document Search Title: ARM: Three Meter Tower: video camera Three Meter Tower: video camera Authors: Scott Smith ; Martin...

  4. ARM: Three Meter Tower: video camera (Dataset) | SciTech Connect

    Office of Scientific and Technical Information (OSTI)

    Three Meter Tower: video camera Citation Details In-Document Search Title: ARM: Three Meter Tower: video camera Three Meter Tower: video camera Authors: Scott Smith ; Martin...

  5. ARM: Forty Meter Tower: video camera (Dataset) | SciTech Connect

    Office of Scientific and Technical Information (OSTI)

    Forty Meter Tower: video camera Citation Details In-Document Search Title: ARM: Forty Meter Tower: video camera Forty Meter Tower: video camera Authors: Scott Smith ; Martin...

  6. 20160307_DraftPEA

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Draft Environmental Assessment April 2016 DOE/EA-2006 BONNEVILLE POWER ADMINISTRATION DOE/BP-2006 * April 2016 Columbia Estuary Ecosystem Restoration Program Page i Table of Contents Chapter 1 Purpose of and Need for Action ................................................................................................. 1 1.1 Introduction ................................................................................................................................................... 1 1.2 Need

  7. Cooled railplug

    DOEpatents

    Weldon, W.F.

    1996-05-07

    The railplug is a plasma ignitor capable of injecting a high energy plasma jet into a combustion chamber of an internal combustion engine or continuous combustion system. An improved railplug is provided which has dual coaxial chambers (either internal or external to the center electrode) that provide for forced convective cooling of the electrodes using the normal pressure changes occurring in an internal combustion engine. This convective cooling reduces the temperature of the hot spot associated with the plasma initiation point, particularly in coaxial railplug configurations, and extends the useful life of the railplug. The convective cooling technique may also be employed in a railplug having parallel dual rails using dual, coaxial chambers. 10 figs.

  8. Property:Draft(m) | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Draft(m) Jump to: navigation, search Property Name Draft(m) Property Type String Retrieved from "http:en.openei.orgwindex.php?titleProperty:Draft(m)&oldid623735" Feedback...

  9. Merit draft fact sheet

    Office of Scientific and Technical Information (OSTI)

    ... Songgang Qiu , sqiu@infiniacorp.com Partner Organizations: Enertron Inc., International Copper Association PROJECT TITLE: Stirling Air Conditioner for Compact Cooling ORGANIZATION: ...

  10. Merit draft fact sheet

    Office of Scientific and Technical Information (OSTI)

    METAL ALLOY REFRIGERANTS CRITICAL NEED New and more efficient cooling methods are ... JOBS: As new technologies develop, there will be new job opportunities in the design, ...

  11. Recommendations: Draft Annual Plan | Department of Energy

    Energy Saver

    Annual Plan Recommendations: Draft Annual Plan Section 999 Annual Plan Recommendations on Draft 2014 Section 999 Annual Plan (409.54 KB) More Documents & Publications URTAC Meeting ...

  12. Draft Sample Collection Instrument | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Draft Sample Collection Instrument Draft Sample Collection Instrument Davis-Bacon Semi-annual Labor Compliance Report OMB Control Number 1910-New PDF icon dbacollectioninstrument...

  13. EIS-0403: Draft Programmatic Environmental Impact Statement ...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Draft Programmatic Environmental Impact Statement EIS-0403: Draft Programmatic Environmental Impact Statement Solar Energy Development in Six Southwestern States Abstract: The BLM...

  14. EIS-0386: Draft Programmatic Environmental Impact Statement ...

    Office of Environmental Management (EM)

    Draft Programmatic Environmental Impact Statement EIS-0386: Draft Programmatic Environmental Impact ... would continue under current agency procedures for granting rights-of-way. ...

  15. Draft Advanced Fossil Solicitation | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Federal loan guarantee solicitation announcement -- Advanced Fossil Energy Projects. Microsoft Word - Draft Advanced Fossil Solicitation Final Draft.1 (383.34 KB) More Documents & ...

  16. Draft Tank Closure & Waste Management EIS - Summary

    Office of Environmental Management (EM)

    Draft Tank Closure and Waste Management Environmental Impact Statement for the Hanford ... (Ecology) Title: Draft Tank Closure and Waste Management Environmental Impact Statement ...

  17. Draft HAB Advice on Integrated Safety Management ...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Committee Draft Advice -Integrated Safety Management v.3 - Korenko, Smith Page 13 Draft ... Safety Management v.3 - Korenko, Smith Page 23 employees, and actively listening ...

  18. Attachment 2: Draft Settlement Agreement

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    made by the Parties in all prior discussions, negotiations and agreements, whether oral or written, relating to the subject matter of this Agreement. 11. DRAFTING OF THE...

  19. Draft Meeting Summary Page 1

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    ADVISORY BOARD PUBLIC INVOLVEMENT AND COMMUNICATION COMMITTEE February 2, 2016 Richland, ... Draft Meeting Summary Page 2 Public Involvement and Communication Committee February 2, ...

  20. Lifting system and apparatus for constructing wind turbine towers

    DOEpatents

    Livingston, Tracy; Schrader, Terry; Goldhardt, James; Lott, James

    2011-02-01

    The disclosed invention is utilized for mounting a wind turbine and blade assembly on the upper end of a wind turbine tower. The invention generally includes a frame or truss that is pivotally secured to the top bay assembly of the tower. A transverse beam is connected to the frame or truss and extends fore of the tower when the frame or truss is in a first position and generally above the tower when in a second position. When in the first position, a wind turbine or blade assembly can be hoisted to the top of the tower. The wind turbine or blade assembly is then moved into position for mounting to the tower as the frame or truss is pivoted to a second position. When the turbine and blade assembly are secured to the tower, the frame or truss is disconnected from the tower and lowered to the ground.

  1. Utility-Scale Power Tower Solar Systems: Performance Acceptance...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Utility-Scale Power Tower Solar Systems: Performance Acceptance Test Guidelines David ... DE-AC36-08GO28308 Utility-Scale Power Tower Solar Systems: Performance Acceptance Test ...

  2. Boise Air Traffic Control Tower: High Performance and sustainable Building Guiding Principles Technical Assistance

    SciTech Connect

    Fowler, Kimberly M.; Goel, Supriya; Henderson, Jordan W.

    2013-09-01

    Overview of energy efficiency opportunities for new FAA tower construction using the Boise Air Traffic Control Tower as an example.

  3. Preoperational test report, recirculation condenser cooling systems

    SciTech Connect

    Clifton, F.T.

    1997-11-04

    This represents a preoperational test report for Recirculation Condenser Systems, Project W-030. Project W-030 provides a ventilation upgrade for the four Aging Waste Facility tanks. The four system provide condenser cooling water for vapor space cooling of tanks AY1O1, AY102, AZ1O1, AZ102. Each system consists of a valved piping loop, a pair of redundant recirculation pumps, a closed-loop evaporative cooling tower, and supporting instrumentation; equipment is located outside the farm on concrete slabs. Piping is routed to the each ventilation condenser inside the farm via below-grade concrete trenches. The tests verify correct system operation and correct indications displayed by the central Monitor and Control System.

  4. New North Dakota Factory to Produce Wind Towers, Jobs

    Energy.gov [DOE]

    Wind tower factory could bring back some of the jobs lost when a machine manufacturing plant closed.

  5. Concentrating Solar Power Tower Plant Illustration

    Office of Energy Efficiency and Renewable Energy (EERE)

    This graphic illustrates numerous large, flat, sun-tracking mirrors, known as heliostats, that focus sunlight onto a receiver at the top of a tower. A heat-transfer fluid heated in the receiver is used to generate steam, which, in turn, is used in a conventional turbine generator to produce electricity.

  6. A model for radionuclide transport in the Cooling Water System

    SciTech Connect

    Kahook, S.D.

    1992-08-01

    A radionuclide transport model developed to assess radiological levels in the K-reactor Cooling Water System (CWS) in the event of an inadvertent process water (PW) leakage to the cooling water (CW) in the heat exchangers (HX) is described. During and following a process water leak, the radionuclide transport model determines the time-dependent release rates of radionuclide from the cooling water system to the environment via evaporation to the atmosphere and blow-down to the Savannah River. The developed model allows for delay times associated with the transport of the cooling water radioactivity through cooling water system components. Additionally, this model simulates the time-dependent behavior of radionuclides levels in various CWS components. The developed model is incorporated into the K-reactor Cooling Tower Activity (KCTA) code. KCTA allows the accident (heat exchanger leak rate) and the cooling tower blow-down and evaporation rates to be described as time-dependent functions. Thus, the postulated leak and the consequence of the assumed leak can be modelled realistically. This model is the first of three models to be ultimately assembled to form a comprehensive Liquid Pathway Activity System (LPAS). LPAS will offer integrated formation, transport, deposition, and release estimates for radionuclides formed in a SRS facility. Process water and river water modules are forthcoming as input and downstream components, respectively, for KCTA.

  7. ESPC ENABLE Draft Task Order

    Energy.gov [DOE]

    Document provides a draft for an agency to use when forming an ESPC ENABLE contract and making a task order award. This draft task order provides the framework for a contract that agencies and energy service companies can tailor to the particular needs of each site or project.

  8. DOE Science Showcase - Cool roofs, cool research, at DOE | OSTI...

    Office of Scientific and Technical Information (OSTI)

    Cool roofs, cool research, at DOE Science Accelerator returns cool roof documents from 6 ... for Selecting Cool Roofs DOE Cool Roof Calculator Visit the Science Showcase homepage.

  9. Keeping California cool: Recent cool community developments ...

    Office of Scientific and Technical Information (OSTI)

    Keeping California cool: Recent cool community developments Citation Details In-Document Search This content will become publicly available on September 6, 2017 Title: Keeping ...

  10. Draft Request for Proposal Documents | National Nuclear Security

    National Nuclear Security Administration (NNSA)

    Administration | (NNSA) Draft Request for Proposal Documents Instructions for DRAFT SNL Solicitation DE-SOL-0008470 Documents DRAFT Section B DE-SOL-0008470 DRAFT Section L DE-SOL-0008470 Instructions DRAFT Section M DE-SOL-0008470 Evaluation Factors DRAFT DE-SOL-0008470 Appendix A SNL Statement of Work DRAFT Section L Attachment E - Past Performance Information Form DRAFT Section L Attachment F - Past Performance Questionnaire DRAFT Section L Attachment G - Management Team Cost Sheet

  11. Biomass 2014 Draft Agenda | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    4 Draft Agenda Biomass 2014 Draft Agenda The following document is a draft agenda for the Biomass 2014: Growing the Future Bioeconomy conference. Biomass 2014 Draft Agenda (337.42 KB) More Documents & Publications Bioproducts to Enable Biofuels Workshop Agenda Bioenergy 2015 Agenda 2015 Project Peer Review Program Booklet

  12. EIS-0288: Draft Environmental Impact Statement

    Office of Energy Efficiency and Renewable Energy (EERE)

    Draft Environmental Impact Statement (EIS) for the Production of Tritium in a Commercial Light Water Reactor

  13. EIS-0525: Draft Programmatic Environmental Impact Statement

    Office of Energy Efficiency and Renewable Energy (EERE)

    Nationwide Public Safety Broadband Network Draft Programmatic Environmental Impact Statement for the Eastern United States

  14. Draft Innovative Exploration Technologies Needs Assessment

    Energy.gov [DOE]

    A draft needs assessment for the Geothermal Technologies Programs Innovative Exploration Technologies Subprogram.

  15. EIS-0222: Draft Environmental Impact Statement

    Energy.gov [DOE]

    Revised Draft Hanford Remedial Action Environmental Impact Statement and Comprehensive Land-Use Plan

  16. REACTOR COOLING

    DOEpatents

    Quackenbush, C.F.

    1959-09-29

    A nuclear reactor with provisions for selectively cooling the fuel elements is described. The reactor has a plurality of tubes extending throughout. Cylindrical fuel elements are disposed within the tubes and the coolant flows through the tubes and around the fuel elements. The fuel elements within the central portion of the reactor are provided with roughened surfaces of material. The fuel elements in the end portions of the tubes within the reactor are provlded with low conduction jackets and the fuel elements in the region between the central portion and the end portions are provided with smooth surfaces of high heat conduction material.

  17. EIS-0387: EPA Notice of Availability of the Draft Environmental...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Draft Environmental Impact Statement EIS-0387: EPA Notice of Availability of the Draft ... More Documents & Publications EIS-0391: EPA Notice of Availability of the Draft ...

  18. EIS-0370: Draft Environmental Impact Statement | Department of...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Draft Environmental Impact Statement EIS-0370: Draft Environmental Impact Statement Windy Gap Firming Project, Colorado Download Document PDF icon EIS-0370: Draft Environmental ...

  19. EIS-0325: Draft Environmental Impact Statement | Department of...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Draft Environmental Impact Statement EIS-0325: Draft Environmental Impact Statement Schultz-Hanford Area Transmission Line Project This summary covers the major points of the Draft...

  20. EIS-0382: Draft Environmental Impact Statement | Department of...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Draft Environmental Impact Statement EIS-0382: Draft Environmental Impact Statement Mesaba Energy Project, Itasca, MN This Draft Environmental Impact Statement (EIS) provides...

  1. EIS-0496: Draft Environmental Impact Statement | Department of...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Draft Environmental Impact Statement EIS-0496: Draft Environmental Impact Statement San ... and state lead agencies, issued a draft EISEnvironmental Impact Report that assesses ...

  2. EIS-0375: Draft Environmental Impact Statement | Department of...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Draft Environmental Impact Statement EIS-0375: Draft Environmental Impact Statement ... Waste and GTCC-Like Waste (Draft GTCC EIS) to evaluate the potential environmental ...

  3. EIS-0499: Draft Environmental Impact Statement | Department of...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Draft Environmental Impact Statement EIS-0499: Draft Environmental Impact Statement Great Northern Transmission Line Project, Minnesota DOE prepared this Draft EIS to evaluate the ...

  4. EIS-0447: Draft Environmental Impact Statement | Department of...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Draft Environmental Impact Statement EIS-0447: Draft Environmental Impact Statement DOE prepared this Draft EIS to evaluate the potential environmental impacts of a DOE proposal to ...

  5. EIS-0336: Draft Environmental Impact Statement | Department of...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Draft Environmental Impact Statement EIS-0336: Draft Environmental Impact Statement Tucson ... to Santa Ana.FE has prepared this Draft EIS to address the environmental impacts of the ...

  6. EA-1966: Draft Environmental Assessment | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Draft Environmental Assessment EA-1966: Draft Environmental Assessment Sunflower Wind Project, Hebron, North Dakota Western Area Power Administration issued a Draft EA that...

  7. EA-1904: Draft Environmental Assessment | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Draft Environmental Assessment EA-1904: Draft Environmental Assessment Linac Coherent Light Source-II Draft Environmental Assessment (December 2011) This EA evaluates the ...

  8. EA-1902: Draft Environmental Assessment | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    2: Draft Environmental Assessment EA-1902: Draft Environmental Assessment Northern Wind Project, Roberts County, South Dakota DOE's Western Area Power Administration issued a draft ...

  9. EA-1979: Draft Environmental Assessment | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Draft Environmental Assessment EA-1979: Draft Environmental Assessment Summit Wind Farm; Summit, South Dakota Western Area Power Administration (Western) issued a draft EA that ...

  10. EA-1891: Draft Environmental Assessment | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Draft Environmental Assessment EA-1891: Draft Environmental Assessment Alvey-Fairview Transmission Line Rebuild Project, Oregon Bonneville Power Administration issued a draft EA to ...

  11. Microsoft Word - GJPPGPracticesDraft.doc | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    GJPPGPracticesDraft.doc Microsoft Word - GJPPGPracticesDraft.doc PDF icon Microsoft Word - GJPPGPracticesDraft.doc More Documents & Publications 1 DOE Purchase Card Policy Natural ...

  12. Recommendations: Draft 2012 Annual Plan | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    2 Annual Plan Recommendations: Draft 2012 Annual Plan Recommendations: Draft Section 999 2012 Annual Plan Section 999 - Recommendations: Draft 2012 Annual Plan (341.3

  13. Recommendations: Draft 2013 Annual Plan | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    3 Annual Plan Recommendations: Draft 2013 Annual Plan URTAC - Recommendations on Draft 2013 Section 999 Annual Plan URTAC - Recommendations on Draft 2013 Annual Plan (457.55

  14. EA-1984: Draft Environmental Assessment | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Draft Environmental Assessment EA-1984: Draft Environmental Assessment Disposition of Five Signature Properties at Idaho National Laboratory, Idaho DOE has prepared a draft EA to...

  15. Towering Cumulus Stage Mature Stage Dissipating Stage

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Towering Cumulus Stage Mature Stage Dissipating Stage 40,000 ft. 20,000 ft. 32 F o 32 F o 32 F o Atmospheric Radiation Measurement Program Facilities Newsletter - June 1999 ARM Facilities Newsletter is published by Argonne National Laboratory, a multiprogram laboratory operated by The University of Chicago under contract W-31-109-Eng-38 with the U.S. Department of Energy. Technical Contact: Douglas L. Sisterson Editor: Donna J. Holdridge What's New The Mesoscale Convective Systems (MCSs)

  16. Possible Draft HAB Comments for

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    : Preliminary issue manager discussion draft; path forward TBD Possible Draft HAB Comments for Remedial Investigation/Feasibility Study and Proposed Plan for the 100-DR-1, 100-DR-2, 100- HR-1, 100-HR-2 and 100-HR-3 Operable Units, (DOE/RL-2010-95 and RL-2011-111, Draft A). * The Board supports the decision to proceed with remediation of the 100-D/H River Corridor areas, and is generally supportive of DOE's alternative analysis for the 100-D/H Areas. * Alternatives 2, 3 and 4 do not meet TPA

  17. Molten Salt Power Tower Cost Model for the System Advisor Model (SAM)

    SciTech Connect

    Turchi, C. S.; Heath, G. A.

    2013-02-01

    This report describes a component-based cost model developed for molten-salt power tower solar power plants. The cost model was developed by the National Renewable Energy Laboratory (NREL), using data from several prior studies, including a contracted analysis from WorleyParsons Group, which is included herein as an Appendix. The WorleyParsons' analysis also estimated material composition and mass for the plant to facilitate a life cycle analysis of the molten salt power tower technology. Details of the life cycle assessment have been published elsewhere. The cost model provides a reference plant that interfaces with NREL's System Advisor Model or SAM. The reference plant assumes a nominal 100-MWe (net) power tower running with a nitrate salt heat transfer fluid (HTF). Thermal energy storage is provided by direct storage of the HTF in a two-tank system. The design assumes dry-cooling. The model includes a spreadsheet that interfaces with SAM via the Excel Exchange option in SAM. The spreadsheet allows users to estimate the costs of different-size plants and to take into account changes in commodity prices. This report and the accompanying Excel spreadsheet can be downloaded at https://sam.nrel.gov/cost.

  18. Energy penalty analysis of possible cooling water intake structurerequirements on existing coal-fired power plants.

    SciTech Connect

    Veil, J. A.; Littleton, D. J.; Gross, R. W.; Smith, D. N.; Parsons, E.L., Jr.; Shelton, W. W.; Feeley, T. J.; McGurl, G. V.

    2006-11-27

    Section 316(b) of the Clean Water Act requires that cooling water intake structures must reflect the best technology available for minimizing adverse environmental impact. Many existing power plants in the United States utilize once-through cooling systems to condense steam. Once-through systems withdraw large volumes (often hundreds of millions of gallons per day) of water from surface water bodies. As the water is withdrawn, fish and other aquatic organisms can be trapped against the screens or other parts of the intake structure (impingement) or if small enough, can pass through the intake structure and be transported through the cooling system to the condenser (entrainment). Both of these processes can injure or kill the organisms. EPA adopted 316(b) regulations for new facilities (Phase I) on December 18, 2001. Under the final rule, most new facilities could be expected to install recirculating cooling systems, primarily wet cooling towers. The EPA Administrator signed proposed 316(b) regulations for existing facilities (Phase II) on February 28, 2002. The lead option in this proposal would allow most existing facilities to achieve compliance without requiring them to convert once-through cooling systems to recirculating systems. However, one of the alternate options being proposed would require recirculating cooling in selected plants. EPA is considering various options to determine best technology available. Among the options under consideration are wet-cooling towers and dry-cooling towers. Both types of towers are considered to be part of recirculating cooling systems, in which the cooling water is continuously recycled from the condenser, where it absorbs heat by cooling and condensing steam, to the tower, where it rejects heat to the atmosphere before returning to the condenser. Some water is lost to evaporation (wet tower only) and other water is removed from the recirculating system as a blow down stream to control the building up of suspended and

  19. Draft Request for Proposal Documents | National Nuclear Security...

    National Nuclear Security Administration (NNSA)

    Draft Request for Proposal Documents Instructions for DRAFT SNL Solicitation DE-SOL-0008470 Documents DRAFT Section B DE-SOL-0008470 DRAFT Section L DE-SOL-0008470 Instructions ...

  20. Alternative Aviation Fuel Workshop Draft Agenda | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Draft Agenda Alternative Aviation Fuel Workshop Draft Agenda alternative_aviation_fuel_workshop_2016_draft_agenda (720.08 KB) More Documents & Publications Bioenergy 2015 Agenda Biomass 2013 Agenda Biomass 2014 Draft Agenda

  1. Work Group Telecom (Draft Charters) | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Telecom (Draft Charters) Work Group Telecom (Draft Charters) Meeting Date: September 8, ... Proposed Charter Template (52.16 KB) Draft Work Group Matrix (60.18 KB) Draft Work Group ...

  2. Preparation of Draft RODs

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Preparation for Warmer Temperatures Preparation for Warmer Temperatures April 2, 2014 - 11:05am Addthis Ceiling fans are a great way to efficiently cool your house in the summer. | Photo courtesy of ©iStockphoto.com/Solidago Ceiling fans are a great way to efficiently cool your house in the summer. | Photo courtesy of ©iStockphoto.com/Solidago Erik Hyrkas Erik Hyrkas Media Relations Specialist, Office of Energy Efficiency & Renewable Energy How can I participate? Find out more ways to

  3. MCR Jetties Rehab Draft EA

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    DRAFT ENVIRONMENTAL ASSESSMENT ENVIRONMENTAL ASSESSMENT FOR THE COLUMBIA STOCK RANCH SECTION 536 ECOSYSTEM RESTORATION PROJECT The environmental review, consultation, and other actions required in accordance with applicable Federal laws for this project is being, or has been, carried-out by the U.S. Army Corps of Engineers, Portland District, under its assumption of responsibility pursuant to 33 C.F.R. Part 230. 22 April 2016 DRAFT Environmental Assessment for the Columbia Estuary Ecosystem

  4. Hanford Advisory Board Draft Letter

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Draft Letter Topic: Worker safety and communication restrictions Authors: Bob Suyama, Shelley Cimon, Susan Leckband, Jerry Peltier Originating Committee: Executive Issues Committee Version #1 10.14.15 Draft letter: worker safety and communication restrictions v.1 Since the inception of the Hanford Advisory Board (Board), one of the Board's primary values is the protection of worker health and safety at the Hanford Site. The Board continues to be concerned about the consequences of worker

  5. EIS-0491: Draft Environmental Impact Statement | Department of...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Draft Environmental Impact Statement EIS-0491: Draft Environmental Impact Statement Lake Charles Liquefaction Project, Calcasieu Parish, Louisiana Federal Energy Regulatory ...

  6. EA-1974: Draft Environmental Assessment | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Draft Environmental Assessment EA-1974: Draft Environmental Assessment Wallooskee-Youngs Confluence Restoration Project, Clatsop County, Oregon Bonneville Power Administration ...

  7. Integrated Layout and Optimization Tool for Solar Power Towers |

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Concentrating Solar Power | NREL Integrated Layout and Optimization Tool for Solar Power Towers The Solar Power Tower Integrated Layout and Optimization Tool (SolarPILOT(tm)) generates and characterizes power tower (central receiver) systems. This software was developed by the National Renewable Energy Laboratory (NREL). SolarPILOT consists of a graphical user interface (GUI) and an application programming interface (API) through which external programs can access SolarPILOT's functionality.

  8. Don Ana Sun Tower Solar Power Plant | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Don Ana Sun Tower Sector Solar Facility Type Concentrating Solar Power Developer NRG EnergyeSolar Location Dona Ana County, New Mexico Coordinates 32.485767,...

  9. Solar Power Tower Integrated Layout and Optimization Tool Background...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Solar Power Tower Integrated Layout and Optimization Tool Background SolarPILOT(tm) offers several unique capabilities compared to other software tools. Unlike exclusively ...

  10. Upcoming Funding Opportunity for Tower Manufacturing and Installation...

    Energy Saver

    and Lower Cost of Energy" intends to support partnerships that lead to innovative designs and processes for wind turbine tower manufacturing and turbine system installation. ...

  11. Project Profile: CSP Tower Air Brayton Combustor | Department...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Concentrating Solar Power Project Profile: CSP Tower Air Brayton Combustor Project ... research that are in progress. SunShot Home About the SunShot Initiative Concentrating ...

  12. NASA's Solar Tower Test of the 1-Meter Aeroshell

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    NASA's Solar Tower Test of the 1-Meter Aeroshell - Sandia Energy Energy Search Icon Sandia ... Applications National Solar Thermal Test Facility Nuclear Energy Systems ...

  13. Solar heating and cooling system installed at RKL Controls Company, Lumberton, New Jersey. Final report

    SciTech Connect

    1981-03-01

    Solar heating and cooling of a 40,000 square foot manufacturing building, sales offices and the solar computer control center/display room are described. Information on system description, test data, major problems and resolutions, performance, operation and maintenance manual, manufacturer's literature and as-built drawings are provided also. The solar system is composed of 6000 square feet of Sunworks double glazed flat plate collectors, external above ground storage subsystem, controls, ARKLA absorption chiller, heat recovery and a cooling tower.

  14. Tower Water-Vapor Mixing Ratio (Technical Report) | SciTech Connect

    Office of Scientific and Technical Information (OSTI)

    Tower Water-Vapor Mixing Ratio Citation Details In-Document Search Title: Tower Water-Vapor Mixing Ratio The purpose of the Tower Water-Vapor Mixing Ratio (TWRMR) value-added ...

  15. Merit draft fact sheet

    Office of Scientific and Technical Information (OSTI)

    TEXT UPDATED: 2/15/2012 BEETIT PROJECT INFINIA HIGH-EFFICIENCY STIRLING AIR CONDITIONER CRITICAL NEED New and more efficient cooling methods are needed to reduce building energy consumption and environmental impact. Buildings currently account for 72% of the nation's electricity use and 40% of our CO2 emissions each year, 5% of which comes directly from air conditioning. The refrigerants typically used in air conditioners are greenhouse gases (GHG) that may contribute to global climate change.

  16. Meteorological Towers Display for Windows NT

    Energy Science and Technology Software Center

    1999-05-20

    The Towers Display Program provides a convenient means of graphically depicting current wind speed and direction from a network of meteorological monitoring stations. The program was designed primarily for emergency response applications and, therefore, plots observed wind directions as a transport direction, i.e., the direction toward which the wind would transport a release of an atmospheric contaminant. Tabular summaries of wind speed and direction as well as temperature, relative humidity, and atmospheric turbulence measured atmore » each monitoring station can be displayed. The current implementation of the product at SRS displays data from eight Weather INformation and Display (WIND) System meteorological towers at SRS, meteorological stations established jointly by SRS/WSRC and the Augusta/Richmond County Emergency Management Agency in Augusta, GA, and National Weather Service stations in Augusta, GA. Wind speed and direction are plotted in a Beaufort scale format at the location of the station on a geographic map of the area. A GUI provides for easy specification of a desired date and time for the data to be displayed.« less

  17. Promising Technology: Cool Roofs

    Energy.gov [DOE]

    A cool roof increases the solar reflectance of the roof surface. By reflecting more sunlight, the roof surface maintains a cooler temperature. This decrease in temperature leads to less heat transfer through the roof into the building below. During the cooling season, the addition of a cool roof can decrease the cooling load of the building.

  18. CoolEarth formerly Cool Earth Solar | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    CoolEarth formerly Cool Earth Solar Jump to: navigation, search Name: CoolEarth (formerly Cool Earth Solar) Place: Livermore, California Zip: 94550 Product: CoolEarth is a...

  19. Conversion Tower for Dispatchable Solar Power: High-Efficiency Solar-Electric Conversion Power Tower

    SciTech Connect

    2012-01-11

    HEATS Project: Abengoa Solar is developing a high-efficiency solar-electric conversion tower to enable low-cost, fully dispatchable solar energy generation. Abengoa’s conversion tower utilizes new system architecture and a two-phase thermal energy storage media with an efficient supercritical carbon dioxide (CO2) power cycle. The company is using a high-temperature heat-transfer fluid with a phase change in between its hot and cold operating temperature. The fluid serves as a heat storage material and is cheaper and more efficient than conventional heat-storage materials, like molten salt. It also allows the use of a high heat flux solar receiver, advanced high thermal energy density storage, and more efficient power cycles.

  20. Hybrid radiator cooling system

    DOEpatents

    France, David M.; Smith, David S.; Yu, Wenhua; Routbort, Jules L.

    2016-03-15

    A method and hybrid radiator-cooling apparatus for implementing enhanced radiator-cooling are provided. The hybrid radiator-cooling apparatus includes an air-side finned surface for air cooling; an elongated vertically extending surface extending outwardly from the air-side finned surface on a downstream air-side of the hybrid radiator; and a water supply for selectively providing evaporative cooling with water flow by gravity on the elongated vertically extending surface.

  1. Tower reactors for bioconversion of lignocellulosic material

    DOEpatents

    Nguyen, Quang A.

    1998-01-01

    An apparatus for enzymatic hydrolysis and fermentation of pretreated lignocellulosic material, in the form of a tower bioreactor, having mixers to achieve intermittent mixing of the material. Precise mixing of the material is important for effective heat and mass transfer requirements without damaging or denaturing the enzymes or fermenting microorganisms. The pretreated material, generally in the form of a slurry, is pumped through the bioreactor, either upwards of downwards, and is mixed periodically as it passes through the mixing zones where the mixers are located. For a thin slurry, alternate mixing can be achieved by a pumping loop which also serves as a heat transfer device. Additional heat transfer takes place through the reactor heat transfer jackets.

  2. Tower reactors for bioconversion of lignocellulosic material

    DOEpatents

    Nguyen, Quang A.

    1999-01-01

    An apparatus for enzymatic hydrolysis and fermentation of pretreated lignocellulosic material, in the form of a tower bioreactor, having mixers to achieve intermittent mixing of the material. Precise mixing of the material is important for effective heat and mass transfer requirements without damaging or denaturing the enzymes or fermenting microorganisms. The pretreated material, generally in the form of a slurry, is pumped through the bioreactor, either upwards or downwards, and is mixed periodically as it passes through the mixing zones where the mixers are located. For a thin slurry, alternate mixing can be achieved by a pumping loop which also serves as a heat transfer device. Additional heat transfer takes place through the reactor heat transfer jackets.

  3. Tower reactors for bioconversion of lignocellulosic material

    DOEpatents

    Nguyen, Q.A.

    1998-03-31

    An apparatus is disclosed for enzymatic hydrolysis and fermentation of pretreated lignocellulosic material. The apparatus consists of a tower bioreactor which has mixers to achieve intermittent mixing of the material. Precise mixing of the material is important for effective heat and mass transfer requirements without damaging or denaturing the enzymes or fermenting microorganisms. The pretreated material, generally in the form of a slurry, is pumped through the bioreactor, either upwards or downwards, and is mixed periodically as it passes through the mixing zones where the mixers are located. For a thin slurry, alternate mixing can be achieved by a pumping loop which also serves as a heat transfer device. Additional heat transfer takes place through the reactor heat transfer jackets. 5 figs.

  4. Tower reactors for bioconversion of lignocellulosic material

    DOEpatents

    Nguyen, Q.A.

    1999-03-30

    An apparatus is described for enzymatic hydrolysis and fermentation of pretreated lignocellulosic material, in the form of a tower bioreactor, having mixers to achieve intermittent mixing of the material. Precise mixing of the material is important for effective heat and mass transfer requirements without damaging or denaturing the enzymes or fermenting microorganisms. The pretreated material, generally in the form of a slurry, is pumped through the bioreactor, either upwards or downwards, and is mixed periodically as it passes through the mixing zones where the mixers are located. For a thin slurry, alternate mixing can be achieved by a pumping loop which also serves as a heat transfer device. Additional heat transfer takes place through the reactor heat transfer jackets. 5 figs.

  5. Power Tower Technology Roadmap and cost reduction plan.

    SciTech Connect

    Mancini, Thomas R.; Gary, Jesse A.; Kolb, Gregory J.; Ho, Clifford Kuofei

    2011-04-01

    Concentrating solar power (CSP) technologies continue to mature and are being deployed worldwide. Power towers will likely play an essential role in the future development of CSP due to their potential to provide dispatchable solar electricity at a low cost. This Power Tower Technology Roadmap has been developed by the U.S. Department of Energy (DOE) to describe the current technology, the improvement opportunities that exist for the technology, and the specific activities needed to reach the DOE programmatic target of providing competitively-priced electricity in the intermediate and baseload power markets by 2020. As a first step in developing this roadmap, a Power Tower Roadmap Workshop that included the tower industry, national laboratories, and DOE was held in March 2010. A number of technology improvement opportunities (TIOs) were identified at this workshop and separated into four categories associated with power tower subsystems: solar collector field, solar receiver, thermal energy storage, and power block/balance of plant. In this roadmap, the TIOs associated with power tower technologies are identified along with their respective impacts on the cost of delivered electricity. In addition, development timelines and estimated budgets to achieve cost reduction goals are presented. The roadmap does not present a single path for achieving these goals, but rather provides a process for evaluating a set of options from which DOE and industry can select to accelerate power tower R&D, cost reductions, and commercial deployment.

  6. Recommendations: Draft 2010 Section 999 Annual Plan | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    10 Section 999 Annual Plan Recommendations: Draft 2010 Section 999 Annual Plan UDAC - Recommendations on Draft 2010 Section 999 Annual Plan (4.19 MB) More Documents & Publications Recommendations: Draft 2009 Section 999 Annual Plan Recommendations: Draft 2012 Annual Plan Recommendations: Draft 2013

  7. EIS-0521: EPA Notice of Availability of Draft Environmental Impact Statement

    Office of Energy Efficiency and Renewable Energy (EERE)

    Gunnison Sage-Grouse Rangewide Draft Resource Management Plan Amendment and Draft Environmental Impact Statement

  8. EIS-0521: BLM Notice of Availability of Draft Environmental Impact Statement

    Office of Energy Efficiency and Renewable Energy (EERE)

    Gunnison Sage-Grouse Rangewide Draft Resource Management Plan Amendment and Draft Environmental Impact Statement

  9. High temperature performance of high-efficiency, multi-layer solar selective coatings for tower applications

    SciTech Connect

    Gray, M. H.; Tirawat, R.; Kessinger, K. A.; Ndione, P. F.

    2015-05-01

    The roadmap to next-generation concentrating solar power plants anticipates a progression to central towers with operating temperatures in excess of 650°C. These higher temperatures are required to drive higher power-cycle efficiencies, resulting in lower cost energy. However, these conditions also place a greater burden on the materials making up the receiver. Any novel absorber material developed for next-generation receivers must be stable in air, cost effective, and survive thousands of heating and cooling cycles. The collection efficiency of a power tower plant can be increased if the energy absorbed by the receiver is maximized while the heat loss from the receiver to the environment is minimized. Thermal radiation losses can be significant (>7% annual energy loss) with receivers at temperatures above 650°C. We present progress toward highly efficient and durable solar selective absorbers (SSAs) intended for operating temperatures from 650°C to 1000°C. Selective efficiency (ηsel) is defined as the energy retained by the absorber, accounting for both absorptance and emittance, relative to the energy incident on the surface. The low emittance layers of multilayer SSAs are binary compounds of refractory metals whose material properties indicate that coatings formed of these materials should be oxidation resistant in air to 800-1200°C. On this basis, we initially developed a solar selective coating for parabolic troughs. This development has been successfully extended to meet the absorptance and emittance objectives for the more demanding, high temperature regime. We show advancement in coating materials, processing and designs resulting in the initial attainment of target efficiencies ηsel > 0.91 for proposed tower conditions. Additionally, spectral measurements show that these coatings continue to perform at targeted levels after cycling to temperatures of 1000°C in environments of nitrogen and forming gas.

  10. High temperature performance of high-efficiency, multi-layer solar selective coatings for tower applications

    SciTech Connect

    Gray, M. H.; Tirawat, R.; Kessinger, K. A.; Ndione, P. F.

    2015-05-01

    The roadmap to next-generation concentrating solar power plants anticipates a progression to central towers with operating temperatures in excess of 650C. These higher temperatures are required to drive higher power-cycle efficiencies, resulting in lower cost energy. However, these conditions also place a greater burden on the materials making up the receiver. Any novel absorber material developed for next-generation receivers must be stable in air, cost effective, and survive thousands of heating and cooling cycles. The collection efficiency of a power tower plant can be increased if the energy absorbed by the receiver is maximized while the heat loss from the receiver to the environment is minimized. Thermal radiation losses can be significant (>7% annual energy loss) with receivers at temperatures above 650C. We present progress toward highly efficient and durable solar selective absorbers (SSAs) intended for operating temperatures from 650C to 1000C. Selective efficiency (?sel) is defined as the energy retained by the absorber, accounting for both absorptance and emittance, relative to the energy incident on the surface. The low emittance layers of multilayer SSAs are binary compounds of refractory metals whose material properties indicate that coatings formed of these materials should be oxidation resistant in air to 800-1200C. On this basis, we initially developed a solar selective coating for parabolic troughs. This development has been successfully extended to meet the absorptance and emittance objectives for the more demanding, high temperature regime. We show advancement in coating materials, processing and designs resulting in the initial attainment of target efficiencies ?sel > 0.91 for proposed tower conditions. Additionally, spectral measurements show that these coatings continue to perform at targeted levels after cycling to temperatures of 1000C in environments of nitrogen and forming gas.

  11. High temperature performance of high-efficiency, multi-layer solar selective coatings for tower applications

    DOE PAGES [OSTI]

    Gray, M. H.; Tirawat, R.; Kessinger, K. A.; Ndione, P. F.

    2015-05-01

    The roadmap to next-generation concentrating solar power plants anticipates a progression to central towers with operating temperatures in excess of 650°C. These higher temperatures are required to drive higher power-cycle efficiencies, resulting in lower cost energy. However, these conditions also place a greater burden on the materials making up the receiver. Any novel absorber material developed for next-generation receivers must be stable in air, cost effective, and survive thousands of heating and cooling cycles. The collection efficiency of a power tower plant can be increased if the energy absorbed by the receiver is maximized while the heat loss from themore » receiver to the environment is minimized. Thermal radiation losses can be significant (>7% annual energy loss) with receivers at temperatures above 650°C. We present progress toward highly efficient and durable solar selective absorbers (SSAs) intended for operating temperatures from 650°C to 1000°C. Selective efficiency (ηsel) is defined as the energy retained by the absorber, accounting for both absorptance and emittance, relative to the energy incident on the surface. The low emittance layers of multilayer SSAs are binary compounds of refractory metals whose material properties indicate that coatings formed of these materials should be oxidation resistant in air to 800-1200°C. On this basis, we initially developed a solar selective coating for parabolic troughs. This development has been successfully extended to meet the absorptance and emittance objectives for the more demanding, high temperature regime. We show advancement in coating materials, processing and designs resulting in the initial attainment of target efficiencies ηsel > 0.91 for proposed tower conditions. Additionally, spectral measurements show that these coatings continue to perform at targeted levels after cycling to temperatures of 1000°C in environments of nitrogen and forming gas.« less

  12. DOE Science Showcase - Cool roofs, cool research, at DOE | OSTI...

    Office of Scientific and Technical Information (OSTI)

    Science Accelerator returns cool roof documents from 6 DOE Databases Executive Order on Sustainability Secretary Chu Announces Steps to Implement One Cool Roof Cool Roofs Lead to ...

  13. Alpine SunTower Solar Power Plant | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    www.renewableenergyfocus.comview2513pge-and-nrg-energy-collaborate-on-92-mw-solar-thermal-power Retrieved from "http:en.openei.orgwindex.php?titleAlpineSunTowerSola...

  14. Wind Turbine Tower for Storing Hydrogen and Energy - Energy Innovation...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Wind Energy Wind Energy Hydrogen and Fuel Cell Hydrogen and Fuel Cell Energy Storage Energy Storage Find More Like This Return to Search Wind Turbine Tower for Storing Hydrogen and ...

  15. CDX 4608, Guard Tower Power and Fiber Reroute (4608)

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Guard Tower Power and Fiber Reroute (4608) Y-12 Site Office Oak Ridge, Anderson County, Tennessee The proposed action is to design and re-route power and fiber to 9949-AR (Guard...

  16. Exxon's guyed tower nears load-out date

    SciTech Connect

    Glasscock, M.S.; Finn, L.D.

    1983-04-01

    Exxon's Lena guyed tower, installed in 1,000ft. water in the Gulf of Mexico, is discussed. The Lena tower is designed to move in response to wave forces rather than resist them rigidly, as is the case with conventional platforms. Selection of tower components to satisfy requirements resulted in a complex geometry which presented design challenges. Buoyancy will serve as a stabilizing force for the tower by adding to the restoring force of the guying system. Flexible J-tube pipeline risers were developed to avoid excessive stresses in the pipelines and J-tube pipelines and J-tubes at the mudline. Exxon's Lena platform is to-date in the second deepest water in the world, and at 1,305 ft total height, is the tallest.

  17. Project Profile: Brayton Cycle Baseload Power Tower | Department...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Wilson Solarpower, under the Baseload CSP FOA, proposed a utility-scale, Brayton cycle baseload power tower system with a capacity factor of at least 75% and LCOE of 0.09kWh. ...

  18. Power Tower System Concentrating Solar Power Basics | Department...

    Energy.gov [DOE] (indexed site)

    In power tower concentrating solar power systems, a large number of flat, sun-tracking ... Crescent Dunes Solar Energy Project is a 110 megawatt solar thermal power plant located in ...

  19. CSC Draft Information Collection Form | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Draft Information Collection Form CSC Draft Information Collection Form CSC Draft Information Collection Form (119.4 KB) More Documents & Publications CSC Proposed Information Collection Presentation Convention on Supplementary Compensation Rulemaking CIGNL Questions

  20. Appendix A: Comments and Responses on the Draft Revised FONSI

    National Nuclear Security Administration (NNSA)

    Can you provide recent water quality results? The Draft Revised FONSI was drafted to ... The Draft Revised FONSI did not impact the plan for water quality testing at the site. ...

  1. Absorption Cooling Basics

    Office of Energy Efficiency and Renewable Energy (EERE)

    Absorption coolers use heat rather than electricity as their energy source. Because natural gas is the most common heat source for absorption cooling, it is also referred to as gas-fired cooling.

  2. Cool Magnetic Molecules

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Cool Magnetic Molecules Print Certain materials are known to heat up or cool down when they are exposed to a changing magnetic field. This is known as the magnetocaloric effect....

  3. Guide to Cool Roofs

    Energy Saver

    beautify your home. The immediate and long-term benefits of roofs that stay cool in the sun have made cool roofing the fastest growing sector of the building industry. Studies...

  4. OFFICIAL USE ONLY Pre-Decisional Draft OFFICIAL USE ONLY Pre-Decisional Draft

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    OFFICIAL USE ONLY Pre-Decisional Draft OFFICIAL USE ONLY Pre-Decisional Draft SAFEGUARDS & SECURITY STRATEGY Safeguards & Security requirements are derived from the quantity and attractiveness of the material, as shown in Figures1 and 2. Figure 1 Nuclear Material Safeguards Categories OFFICIAL USE ONLY Pre-Decisional Draft OFFICIAL USE ONLY Pre-Decisional Draft Description/Form MaximumSNM concentration* (wt%) for MC&A and physical protection termination MaximumSNM concentration(wt%)

  5. Hydrogen Storage in Wind Turbine Towers: Cost Analysis and Conceptual

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Design | Department of Energy in Wind Turbine Towers: Cost Analysis and Conceptual Design Hydrogen Storage in Wind Turbine Towers: Cost Analysis and Conceptual Design Preprint 34851.pdf (366.26 KB) More Documents & Publications U.S. Wind Energy Manufacturing & Supply Chain: A Competitiveness Analysis Final Report DE-EE0005380 - Assessment of Offshore Wind Farm Effects on Sea Surface, Subsurface and Airborne Electronic Systems Technical Assessment of Cryo-Compressed Hydrogen Storage

  6. Upcoming Funding Opportunity for Tower Manufacturing and Installation |

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Department of Energy Tower Manufacturing and Installation Upcoming Funding Opportunity for Tower Manufacturing and Installation December 18, 2013 - 11:25am Addthis The DOE Wind Program has issued a Notice of Intent for a funding opportunity that it intends to post early in 2014, pending Congressional appropriations. The funding opportunity, tentatively titled "U.S. Wind Manufacturing: Taller Hub Heights to Access Higher Wind Resources, and Lower Cost of Energy" intends to support

  7. Data center cooling system

    SciTech Connect

    Chainer, Timothy J; Dang, Hien P; Parida, Pritish R; Schultz, Mark D; Sharma, Arun

    2015-03-17

    A data center cooling system may include heat transfer equipment to cool a liquid coolant without vapor compression refrigeration, and the liquid coolant is used on a liquid cooled information technology equipment rack housed in the data center. The system may also include a controller-apparatus to regulate the liquid coolant flow to the liquid cooled information technology equipment rack through a range of liquid coolant flow values based upon information technology equipment temperature thresholds.

  8. Earth coupled cooling techniques

    SciTech Connect

    Grondzik, W.T.; Boyer, L.L.; Johnston, T.L.

    1981-01-01

    Earth coupled cooling is an important consideration for residential and commercial designers, owners, and builders in many regions of the country. The potential benefits which can be expected from passive earth contact cooling are reviewed. Recommendations for the design of earth sheltered structures incorporating earth coupled cooling strategies are also presented.

  9. EIS-0499: EPA Notice of Availability of Draft Environmental Impact...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    EIS-0499: EPA Notice of Availability of Draft Environmental Impact Statement Great Northern Transmission Line Project, Minnesota EPA announced the availability of the Draft ...

  10. EIS-0483: Draft Environmental Impact Statement | Department of...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    3: Draft Environmental Impact Statement EIS-0483: Draft Environmental Impact Statement Estes to Flatiron Substation Transmission Lines Rebuild Project, Larimer County, Colorado...

  11. New Draft of Cybersecurity Risk Management Process (RMP) Guideline...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Draft of Cybersecurity Risk Management Process (RMP) Guideline Now Available for Public Comment (March 2012) New Draft of Cybersecurity Risk Management Process (RMP) Guideline Now ...

  12. The Department of Energy Releases Draft of Cybersecurity Risk...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    The Department of Energy Releases Draft of Cybersecurity Risk Management Process (RMP) Guideline for Public Comment (September 2011) The Department of Energy Releases Draft of ...

  13. Draft Site-Wide Environmental Impact Statement Nevada Summary...

    National Nuclear Security Administration (NNSA)

    Office of General Counsel National Environmental Policy Act (NEPA) NEPA Reading Room Draft Site-Wide Environmental Impact Statement Nevada Draft Site-Wide Environmental...

  14. EIS-0317-S1: Draft Supplemental Environmental Impact Statement...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Draft Supplemental Environmental Impact Statement EIS-0317-S1: Draft Supplemental Environmental Impact Statement Kangley-Echo Lake Transmission Line Project Bonneville Power...

  15. EIS-0477: Draft Environmental Impact Statement | Department of...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Draft Environmental Impact Statement EIS-0477: Draft Environmental Impact Statement San Juan Basin Energy Connect Project; San Juan County, New Mexico and La Plata County, Colorado...

  16. EIS-0492: EPA Notice of Availability of Draft Environmental Impact...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    EPA Notice of Availability of Draft Environmental Impact Statement EIS-0492: EPA Notice of Availability of Draft Environmental Impact Statement Oregon LNG Export Project ...

  17. EIS-0503: EPA Notice of Availability of Draft Environmental Impact...

    Energy.gov [DOE] (indexed site)

    EPA announced the availability of the Draft EIS to evaluate the potential environmental ... Download Document EIS-0503: EPA Notice of Availability of Draft Environmental Impact ...

  18. EIS-0481: EPA Notice of Availability of Draft Programmatic Environment...

    Energy Saver

    EPA Notice of Availability of Draft Programmatic Environmental Impact Statement EIS-0481: EPA Notice of Availability of Draft Programmatic Environmental Impact Statement Engineered ...

  19. EIS-0505: EPA Notice of Availability of Supplemental Draft Environment...

    Energy Saver

    5: EPA Notice of Availability of Supplemental Draft Environmental Impact Statement EIS-0505: EPA Notice of Availability of Supplemental Draft Environmental Impact Statement ...

  20. EIS-0391: EPA Notice of Availability of the Draft Environmental...

    Office of Environmental Management (EM)

    1: EPA Notice of Availability of the Draft Environmental Impact Statement EIS-0391: EPA Notice of Availability of the Draft Environmental Impact Statement Tank Closure and Waste ...

  1. EIS-0523: EPA Notice of Availability of Draft Programmatic Environment...

    Office of Environmental Management (EM)

    : EPA Notice of Availability of Draft Programmatic Environmental Impact Statement EIS-0523: EPA Notice of Availability of Draft Programmatic Environmental Impact Statement ...

  2. EIS-0359: EPA Notice of Availability of the Draft Environmental...

    Energy.gov [DOE] (indexed site)

    More Documents & Publications EIS-0343: EPA Notice of Availability of the Draft Environmental Impact Statement EIS-0360: EPA Notice of Availability of the Draft Environmental ...

  3. EIS-0501: EPA Notice of Availability of Draft Environmental Impact...

    Office of Environmental Management (EM)

    EPA Notice of Availability of Draft Environmental Impact Statement EIS-0501: EPA Notice of Availability of Draft Environmental Impact Statement Golden Pass LNG Export Project; ...

  4. EIS-0526: EPA Notice of Availability of the Draft Environmental...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    EPA Notice of Availability of the Draft Environmental Impact Statement EIS-0526: EPA Notice of Availability of the Draft Environmental Impact Statement Lower Yellowstone Intake ...

  5. EIS-0463: EPA Notice of Availability of Draft Environmental Impact...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    EPA Notice of Availability of Draft Environmental Impact Statement EIS-0463: EPA Notice of Availability of Draft Environmental Impact Statement Northern Pass Transmission Line ...

  6. EIS-0515: EPA Notice of Availability of Supplemental Draft Environment...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    EPA Notice of Availability of Supplemental Draft Environmental Impact Statement EIS-0515: EPA Notice of Availability of Supplemental Draft Environmental Impact Statement Bay Delta ...

  7. EIS-0491: EPA Notice of Availability of Draft Environmental Impact...

    Energy Saver

    EPA Notice of Availability of Draft Environmental Impact Statement EIS-0491: EPA Notice of Availability of Draft Environmental Impact Statement Lake Charles Liquefaction Project, ...

  8. EIS-0527: EPA Notice of Availability of a Draft Programmatic...

    Office of Environmental Management (EM)

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    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

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    Office of Environmental Management (EM)

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    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

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    Energy Saver

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    Office of Environmental Management (EM)

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    Energy Saver

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    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

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  7. EA-1932: Draft Environmental Assessment | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Draft Environmental Assessment EA-1932: Draft Environmental Assessment Bass Lake Native Fish Restoration, Eureka, Lincoln County, Montana This EA will evaluate the potential...

  8. EIS-0312: Draft Environmental Impact Statement | Department of...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

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  9. EIS-0414: Draft Environmental Impact Statement | Department of...

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    Office of Environmental Management (EM)

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  11. EA-1917: Notice of Availability of a Draft Environmental Assessment...

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    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

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  13. EA-1995: Draft Environmental Assessment | Department of Energy

    Office of Environmental Management (EM)

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  14. Questions, Comments, and Answers for Draft Request for Proposal...

    National Nuclear Security Administration (NNSA)

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  15. EA-1862: Draft Environmental Assessment | Department of Energy

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  16. HAWAI'I CLEAN ENERGY DRAFT PROGRAMMATIC ENVIRONMENTAL IMPACT...

    Energy.gov [DOE] (indexed site)

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  18. EIS-0323: Draft Environmental Impact Statement | Department of...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

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  19. Federal Register Notice for Draft Addendum to Environmental Review...

    Energy Saver

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    Energy.gov [DOE]

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  1. EA-1952: Draft Environmental Assessment | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Draft Environmental Assessment EA-1952: Draft Environmental Assessment Lane-Wendson No. 1 ... EA-1952: Final Environmental Assessment EA-1952: Finding of No Significant Impact

  2. EA-1922: Notice of Availability of a Draft Environmental Assessment...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Notice of Availability of a Draft Environmental Assessment EA-1922: Notice of Availability of a ... EA-1922: Draft Environmental Assessment EA-1922: Finding of No Significant Impact

  3. EA-1903: Draft Environmental Assessment | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Draft Environmental Assessment EA-1903: Draft Environmental Assessment Kansas State ... EA-1903: Final Environmental Assessment EA-1903: Finding of No Significant Impact

  4. EIS-0377: Draft Environmental Impact Statement | Department of...

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  5. EA-1809: Draft Environmental Assessment | Department of Energy

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  6. EIS-0485: Draft Environmental Impact Statement | Department of...

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  7. EA-1989: Draft Environmental Assessment | Department of Energy

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  8. EA-2018: Draft Environmental Assessment | Department of Energy

    Office of Environmental Management (EM)

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  9. EIS-0525: Department of Commerce Notice of Availability of Draft...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

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  10. EA-1923: Draft Environmental Assessment | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

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  11. DRAFT NEPA Guidance on Consideration of the Effects of Climate...

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    OpenEI (Open Energy Information) [EERE & EIA]

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  13. DOE EAC Electricity Adequacy Report. Transmission Chapter DRAFT...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    EAC Electricity Adequacy Report. Transmission Chapter DRAFT- September 18, 2008 DOE EAC Electricity Adequacy Report. Transmission Chapter DRAFT- September 18, 2008 The purpose of...

  14. EA-1870: Draft Environmental Assessment | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

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    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

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  16. EIS-0319: Draft Environmental Impact Statement | Department of...

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    Draft Environmental Impact Statement EIS-0319: Draft Environmental Impact Statement This EIS evaluates the potential direct, indirect, and cumulative environmental impacts...

  17. EIS-0445: EPA Notice of Availability of the Draft Environmental...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    of the Draft Environmental Impact Statement Mountaineer Commercial Scale Carbon Capture and Storage Project, Mason County, West Virginia Notice of Availability of Draft...

  18. EA-1945: Draft Environmental Assessment | Department of Energy

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    EA-1945: Draft Environmental Assessment Northern Mid-Columbia Joint Project, Douglas and Chelan Counties, Washington Bonneville Power Administration (BPA) issued a Draft...

  19. Draft Advanced Nuclear Energy Solicitation Public Meeting Presentation...

    Energy Saver

    Nuclear Energy Solicitation Public Meeting Presentation Draft Advanced Nuclear Energy Solicitation Public Meeting Presentation Draft Advanced Nuclear Solicitation presentation.pdf ...

  20. EIS-0440: EPA Notice of Availability of the Draft Environmental...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

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    Renewable Energy & Energy Efficiency Projects Draft Loan Guarantee Solicitation May 2014 2 ... of Groundbreaking Projects 4 Draft Renewable Energy & Efficient Energy Projects ...

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    Energy Saver

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    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

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    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

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  7. Department of Energy Issues Draft Renewable Energy and Efficient...

    Office of Environmental Management (EM)

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  8. EIS-0165: DRAFT ENVIRONMENTAL IMPACT STATEMENT | Department of...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    5: DRAFT ENVIRONMENTAL IMPACT STATEMENT EIS-0165: DRAFT ENVIRONMENTAL IMPACT STATEMENT EIS-0165: Strategic Petroleum Reserve Alabama, Louisiana, Mississippi, and Texas ...

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    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Draft Environmental Impact Statement EIS-0394: Draft Environmental Impact Statement FutureGen Project The EIS provides information about the potential environmental impacts of the ...

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    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    DOE Notice of Availability of Draft Environmental Impact Statement EIS-0453: DOE Notice of ... the Draft Environmental Impact Statement (EIS) for the Recapitalization of Infrastructure ...

  11. EIS-0453: Draft Environmental Impact Statement | Department of...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    EIS-0453: Draft Environmental Impact Statement Recapitalization of Infrastructure Supporting Naval Spent Nuclear Fuel Handling at the Idaho National Laboratory The Draft EIS ...

  12. EA-1955: Draft Environmental Assessment | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Draft Environmental Assessment EA-1955: Draft Environmental Assessment Campbell County Wind Farm, Campbell County, South Dakota DOE's Western Area Power Administration (Western) ...

  13. EA-1860: Draft Environmental Assessment | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    0: Draft Environmental Assessment EA-1860: Draft Environmental Assessment Richland Center Renewable Energy Waste- to- Energy Project, Richland, Wisconsin Comment Period Ended: 92...

  14. EA-1728: Draft Environmental Assessment | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Draft Environmental Assessment EA-1728: Draft Environmental Assessment Integrated Vegetation Management on the Hanford Site, Richland, Washington For more information, contact: Mr....

  15. EA-1960: Draft Environmental Assessment | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

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  16. EA-1889: Draft Environmental Assessment | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Draft Environmental Assessment EA-1889: Draft Environmental Assessment Disposal of Decommissioned, Defueled Naval Reactor Plants from USS Enterprise (CVN 65) The Department of the...

  17. EA-1829: Draft Environmental Assessment | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Draft Environmental Assessment EA-1829: Draft Environmental Assessment Phycal Algae Pilot Project, Wahiawa and Kalaeloa, HI For more information, contact: Mr. Jesse Garcia NEPA...

  18. Barriers to CHP with Renewable Portfolio Standards, Draft White...

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    CHP with Renewable Portfolio Standards, Draft White Paper, September 2007 Barriers to CHP with Renewable Portfolio Standards, Draft White Paper, September 2007 The recent ...

  19. EA-1947: Draft Revised Finding of No Significant Impact | Department...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    1947: Draft Revised Finding of No Significant Impact EA-1947: Draft Revised Finding of No Significant Impact Transfer of the Kansas City Plant, Kansas City, Missouri The National ...

  20. EA-1993: Draft Environmental Assessment | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    3: Draft Environmental Assessment EA-1993: Draft Environmental Assessment Proposed High Explosive Science & Engineering Project, Pantex Plant, Amarillo, Texas The proposed action ...

  1. EA-1972: Draft Environmental Assessment | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Draft Environmental Assessment EA-1972: Draft Environmental Assessment Electric District 2 to Saguaro No. 2 Transmission Line Rebuild, Pinal County, Arizona Western Area Power ...

  2. EA-1934: Draft Environmental Assessment | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Draft Environmental Assessment EA-1934: Draft Environmental Assessment Expansion of Active Borrow Areas, Hanford Site, Richland, Washington This EA will evaluate the potential ...

  3. EA-1901: Draft Environmental Assessment | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Draft Environmental Assessment EA-1901: Draft Environmental Assessment Kootenai River White Sturgeon and Burbot Hatcheries Project, Bonners Ferry, Boundary County, Idaho This EA ...

  4. EA-1973: Draft Environmental Assessment | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

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  5. EA-1931: Draft Environmental Assessment | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

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  6. Draft Specifications for Application of UNFC-2009 to Renewable...

    OpenEI (Open Energy Information) [EERE & EIA]

    Draft Specifications for Application of UNFC-2009 to Renewable Energy Resources Jump to: navigation, search OpenEI Reference LibraryAdd to library Report: Draft Specifications for...

  7. Energy Department Releases Draft Updated Best Practices for Residentia...

    Energy Saver

    Releases Draft Updated Best Practices for Residential PACE Financing Programs Energy Department Releases Draft Updated Best Practices for Residential PACE Financing Programs July ...

  8. EIS-0337: Draft Environmental Impact Statement | Department of...

    Energy Saver

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  9. EIS-0441: EPA Notice of Availability of a Draft Environmental...

    Office of Environmental Management (EM)

    a Draft Environmental Impact Statement Mohave County Wind Farm Project, Mohave County, Arizona EPA announces the availability of BLM's Draft Environmental Impact Statement for the...

  10. EIS-0279: Draft Environmental Impact Statement | Department of...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    : Draft Environmental Impact Statement EIS-0279: Draft Environmental Impact Statement The ... website due to the potential security sensitivity of some information in these documents. ...

  11. EIS-0395: Draft Environmental Impact Statement | Department of...

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    Draft Environmental Impact Statement EIS-0395: Draft Environmental Impact Statement San Luis Rio Colorado Project The proposed transmission line would originate at the San Luis Rio...

  12. National Electric Transmission Congestion Study - Draft for Public...

    Office of Environmental Management (EM)

    - Draft for Public Comment August 2014 National Electric Transmission Congestion Study - Draft for Public Comment August 2014 On August 19, 2014, the Department issued a Federal...

  13. EIS-0376: Draft Environmental Impact Statement | Department of...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Draft Environmental Impact Statement EIS-0376: Draft Environmental Impact Statement The Department of Energy (DOE) limits electronic access to certain NEPA documents on this ...

  14. EIS-0306: Draft Environmental Impact Statement | Department of...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    6: Draft Environmental Impact Statement EIS-0306: Draft Environmental Impact Statement The Department of Energy (DOE) limits electronic access to certain NEPA documents on this ...

  15. EIS-0082-S2: Draft Environmental Impact Statement | Department...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    82-S2: Draft Environmental Impact Statement EIS-0082-S2: Draft Environmental Impact Statement The Department of Energy (DOE) limits electronic access to certain NEPA documents on ...

  16. EIS-0271: Draft Environmental Impact Statement | Department of...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    1: Draft Environmental Impact Statement EIS-0271: Draft Environmental Impact Statement The Department of Energy (DOE) limits electronic access to certain NEPA documents on this ...

  17. EIS-0309: Draft Site-Wide Environmental Impact Statement | Department...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

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  18. EIS-0250: Draft Environmental Impact Statement

    Office of Energy Efficiency and Renewable Energy (EERE)

    Draft Environmental Impact Statement for a Geologic Repository for the Disposal of Spent Nuclear Fuel and High-Level Radioactive Waste at Yucca Mountain (July 1999)

  19. Buildings Interoperability Landscape - Draft | Department of...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    DOE is therefore sponsoring an effort to advance interoperability for the integration of intelligent buildings equipment and automation systems. As part of that effort, this draft ...

  20. EIS-0377: Supplemental Draft Environmental Impact Statement ...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Impact Statement EIS-0377: Supplemental Draft Environmental Impact Statement Big Stone II Power Plant and Transmission Project In May 2006, Western Area Power...

  1. Microsoft Word - Draft Comprehensive Evaluation News Release...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    208-378-5101 Draft report from Federal agencies shows gains for Columbia River Basin fish Portland, Ore. - Federal agencies and their partners outlined today five years of...

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    Energy.gov [DOE] (indexed site)

    needed. DRAFT "Energy Advisory Committee" - Energy Storage Subcommittee Report (154.63 KB) More Documents & Publications Value of a Smart Grid System TEC Working Group Topic Groups ...

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    Office of Environmental Management (EM)

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  4. Draft Needs Assessment for Innovative Exploration Technologies...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    advances for the subprogram to pursue. Input received will be used to guide the strategy for leveraging resources to advance geothermal exploration tools. The Draft...

  5. New "Cool Roof Time Machine" Will Accelerate Cool Roof Deployment...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    "Cool Roof Time Machine" Will Accelerate Cool Roof Deployment New "Cool Roof Time Machine" Will Accelerate Cool Roof Deployment April 24, 2015 - 4:21pm Addthis Berkeley Lab...

  6. Cooling water distribution system

    DOEpatents

    Orr, Richard

    1994-01-01

    A passive containment cooling system for a nuclear reactor containment vessel. Disclosed is a cooling water distribution system for introducing cooling water by gravity uniformly over the outer surface of a steel containment vessel using an interconnected series of radial guide elements, a plurality of circumferential collector elements and collector boxes to collect and feed the cooling water into distribution channels extending along the curved surface of the steel containment vessel. The cooling water is uniformly distributed over the curved surface by a plurality of weirs in the distribution channels.

  7. STOCHASTIC COOLING POWER REQUIREMENTS.

    SciTech Connect

    WEI,J.BLASKIEWICZ,M.BRENNAN,M.

    2004-07-05

    A practical obstacle for stochastic cooling in high-energy colliders like RHIC is the large amount of power needed for the cooling system. Based on the coasting-beam Fokker-Planck (F-P) equation, we analytically derived the optimum cooling rate and cooling power for a beam of uniform distribution and a cooling system of linear gain function. The results indicate that the usual back-of-envelope formula over-estimated the cooling power by a factor of the mixing factor M. On the other hand, the scaling laws derived from the coasting-beam Fokker-Planck approach agree with those derived from the bunched-beam Fokker-Planck approach if the peak beam intensity is used as the effective coasting-beam intensity. A longitudinal stochastic cooling system of 4-8 GHz bandwidth in RHIC can effectively counteract intrabeam scattering, preventing the beam from escaping the RF bucket becoming debunched around the ring.

  8. Radiant Cooling | Department of Energy

    Energy Saver

    Radiant Cooling Radiant cooling cools a floor or ceiling by absorbing the heat radiated from the rest of the room. When the floor is cooled, it is often referred to as radiant ...

  9. Draft Multi-Year Program Plan

    Office of Energy Efficiency and Renewable Energy (EERE)

    The Department of Energys Building Technologies Office (BTO) has released its draft Multi-Year Program Plan (MYPP) for public comment. The draft MYPP provides a broad overview of buildings energy use and efficiency opportunities, and the strategies and goals of BTO to substantially accelerate the rate of efficiency improvements in both new and existing residential and commercial buildings.

  10. Workers Safely Tear Down Towers at Manhattan Project Site | Department of

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Energy Safely Tear Down Towers at Manhattan Project Site Workers Safely Tear Down Towers at Manhattan Project Site August 21, 2014 - 12:00pm Addthis Workers observe the demolition of the West Water Tower at Los Alamos National Laboratory. Workers observe the demolition of the West Water Tower at Los Alamos National Laboratory. The East Water Tower falls. The East Water Tower falls. EM’s federal team for the demolition project, from left, Fire Coordinator Allan Trujillo, DOE Intern Kathy

  11. Gas turbine cooling system

    DOEpatents

    Bancalari, Eduardo E.

    2001-01-01

    A gas turbine engine (10) having a closed-loop cooling circuit (39) for transferring heat from the hot turbine section (16) to the compressed air (24) produced by the compressor section (12). The closed-loop cooling system (39) includes a heat exchanger (40) disposed in the flow path of the compressed air (24) between the outlet of the compressor section (12) and the inlet of the combustor (14). A cooling fluid (50) may be driven by a pump (52) located outside of the engine casing (53) or a pump (54) mounted on the rotor shaft (17). The cooling circuit (39) may include an orifice (60) for causing the cooling fluid (50) to change from a liquid state to a gaseous state, thereby increasing the heat transfer capacity of the cooling circuit (39).

  12. Home Cooling | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Cooling Home Cooling Energy Saver 101 Energy Saver 101 We're covering everything you need to know about home cooling to help you save energy and money. Read more Ventilation Systems for Cooling Ventilation Systems for Cooling Learn how to avoid heat buildup and keep your home cool with ventilation. Read more Cooling with a Whole House Fan Cooling with a Whole House Fan A whole-house fan, in combination with other cooling systems, can meet all or most of your home cooling needs year round. Read

  13. Data Center Cooling

    SciTech Connect

    Rutberg, Michael; Cooperman, Alissa; Bouza, Antonio

    2013-10-31

    The article discusses available technologies for reducing energy use for cooling data center facilities. This article addresses the energy savings and market potential of these strategies as well.

  14. Cool Roofs: An Introduction

    Energy.gov [DOE]

    I've been hearing a lot about cool roof technologies, so I welcomed the chance to learn more at a recent seminar.

  15. Power electronics cooling apparatus

    DOEpatents

    Sanger, Philip Albert; Lindberg, Frank A.; Garcen, Walter

    2000-01-01

    A semiconductor cooling arrangement wherein a semiconductor is affixed to a thermally and electrically conducting carrier such as by brazing. The coefficient of thermal expansion of the semiconductor and carrier are closely matched to one another so that during operation they will not be overstressed mechanically due to thermal cycling. Electrical connection is made to the semiconductor and carrier, and a porous metal heat exchanger is thermally connected to the carrier. The heat exchanger is positioned within an electrically insulating cooling assembly having cooling oil flowing therethrough. The arrangement is particularly well adapted for the cooling of high power switching elements in a power bridge.

  16. District cooling gets hot

    SciTech Connect

    Seeley, R.S.

    1996-07-01

    Utilities across the country are adopting cool storage methods, such as ice-storage and chilled-water tanks, as an economical and environmentally safe way to provide cooling for cities and towns. The use of district cooling, in which cold water or steam is pumped to absorption chillers and then to buildings via a central community chiller plant, is growing strongly in the US. In Chicago, San Diego, Pittsburgh, Baltimore, and elsewhere, independent district-energy companies and utilities are refurbishing neglected district-heating systems and adding district cooling, a technology first developed approximately 35 years ago.

  17. Energy 101: Cool Roofs

    SciTech Connect

    2011-01-01

    This edition of Energy 101 takes a look at how switching to a cool roof can save you money and benefit the environment.

  18. Energy 101: Cool Roofs

    Education - Teach & Learn

    This edition of Energy 101 takes a look at how switching to a cool roof can save you money and benefit the environment.

  19. ARM - Cool Sites

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Barrow, Alaska Tropical Western Pacific Site Tours Contacts Students Study Hall About ARM Global Warming FAQ Just for Fun Meet our Friends Cool Sites Teachers Teachers' Toolbox ...

  20. Passive containment cooling system

    DOEpatents

    Conway, Lawrence E.; Stewart, William A.

    1991-01-01

    A containment cooling system utilizes a naturally induced air flow and a gravity flow of water over the containment shell which encloses a reactor core to cool reactor core decay heat in two stages. When core decay heat is greatest, the water and air flow combine to provide adequate evaporative cooling as heat from within the containment is transferred to the water flowing over the same. The water is heated by heat transfer and then evaporated and removed by the air flow. After an initial period of about three to four days when core decay heat is greatest, air flow alone is sufficient to cool the containment.

  1. Energy 101: Cool Roofs

    ScienceCinema

    None

    2013-05-29

    This edition of Energy 101 takes a look at how switching to a cool roof can save you money and benefit the environment.

  2. Cool Magnetic Molecules

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    (Gd). While some of this research is focused on materials that would operate near room temperature, Karotsis et al. here investigate the magnetic cooling properties of...

  3. EIS-0236-S1: Draft Supplemental Programmatic Environmental Impact Statement

    Energy.gov [DOE]

    National Ignition Facility Draft Environmental Impact Statement to the Stockpile Stewardship and Management

  4. Recommendations: Draft 2012 Annual Plan | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    2012 Annual Plan Recommendations: Draft 2012 Annual Plan UDAC - Recommendations on Draft 2012 Section 999 Annual Plan UDAC Recommendations on Draft 2012 Section 999 Annual Plan (541.53 KB) More Documents & Publications Recommendations: Draft 2011 Section 999 Annual Plan Minutes from December 16, 2013 UDAC Meeting UDAC Next Steps

  5. Comment Listing Response to Draft REEE Solicitation FINAL | Department of

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Energy Comment Listing Response to Draft REEE Solicitation FINAL Comment Listing Response to Draft REEE Solicitation FINAL Comment ListingResponse_REEE Solicitation_final.pdf (566.28 KB) More Documents & Publications Draft Advanced Fossil Energy Projects Solicitation Public Comments Draft Advanced Nuclear Energy Solicitation Public Meeting Presentation DOE-LPO_Email-Update_001_Through_11

  6. Recommendations: Draft 2007 Section 999 Annual Plan | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    7 Section 999 Annual Plan Recommendations: Draft 2007 Section 999 Annual Plan UDAC - Recommendations on Draft 2007 Section 999 Annual Plan (157.88 KB) More Documents & Publications Recommendations: Draft 2012 Annual Plan Recommendations: Draft 2008 Section 999 Annual Plan UDAC Meeting - July 2007

  7. Recommendations: Draft 2009 Section 999 Annual Plan | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    09 Section 999 Annual Plan Recommendations: Draft 2009 Section 999 Annual Plan UDAC Recommendations on Draft 2009 Section 999 Annual Plan (3.77 MB) More Documents & Publications Recommendations: Draft 2010 Section 999 Annual Plan Recommendations: Draft 2012 Annual Plan Recommendations: 2009

  8. Microsoft Word - NEAC Draft Minutes

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    ... It is developing a toolkit that is technology neutral with the capability for simulations of light-water reactors, sodium-cooled fast reactors, and very-high-temperature reactors. ...

  9. EA-2006: Draft Environmental Assessment

    Energy.gov [DOE]

    Columbia Estuary Ecosystem Restoration Program Bonneville Power Administration, with the U.S. Army Corps of Engineers as a cooperating agency, issued a draft programmatic EA for actions recommended by the Northwest Power and Conservation Council to help restore ecological structure, function, and biodiversity within the Columbia River estuary. Activities under this program could include full reconnection of tidal influence through breaching dikes and levees; partial reconnection of tidal influence through culverts, bridges, and tidegates; enhancement of the quantity and quality of tidal channels; removal of invasive species; and restoration of riparian habitat conditions, such as planting native vegetation.

  10. Conversion of Solar Two to a Kokhala hybrid power tower

    SciTech Connect

    Price, H.W.

    1997-06-01

    The continued drop in energy prices and restructuring of the utility industry have reduced the likelihood that a follow-on commercial 100-MW, power tower project will be built immediately following the Solar Two demonstration project. Given this, it would be desirable to find a way to extend the life of the Solar Two project to allow the plant to operate as a showcase for future power tower projects. This paper looks at the possibility of converting Solar Two into a commercial Kokhala hybrid power tower plant at the end of its demonstration period in 1998. The study identifies two gas turbines that could be integrated into a Kokhala cycle at Solar Two and evaluates the design, expected performance, and economics of each of the systems. The study shows that a commercial Kokhala project at Solar Two could produce power at a cost of less than 7 e/kWhr.

  11. Ice Thermal Storage Systems for LWR Supplemental Cooling and Peak Power Shifting

    SciTech Connect

    Haihua Zhao; Hongbin Zhang; Phil Sharpe; Blaise Hamanaka; Wei Yan; WoonSeong Jeong

    2010-06-01

    Availability of enough cooling water has been one of the major issues for the nuclear power plant site selection. Cooling water issues have frequently disrupted the normal operation at some nuclear power plants during heat waves and long draught. The issues become more severe due to the new round of nuclear power expansion and global warming. During hot summer days, cooling water leaving a power plant may become too hot to threaten aquatic life so that environmental regulations may force the plant to reduce power output or even temporarily to be shutdown. For new nuclear power plants to be built at areas without enough cooling water, dry cooling can be used to remove waste heat directly into the atmosphere. However, dry cooling will result in much lower thermal efficiency when the weather is hot. One potential solution for the above mentioned issues is to use ice thermal storage systems (ITS) that reduce cooling water requirements and boost the plant’s thermal efficiency in hot hours. ITS uses cheap off-peak electricity to make ice and uses those ice for supplemental cooling during peak demand time. ITS is suitable for supplemental cooling storage due to its very high energy storage density. ITS also provides a way to shift large amount of electricity from off peak time to peak time. Some gas turbine plants already use ITS to increase thermal efficiency during peak hours in summer. ITSs have also been widely used for building cooling to save energy cost. Among three cooling methods for LWR applications: once-through, wet cooling tower, and dry cooling tower, once-through cooling plants near a large water body like an ocean or a large lake and wet cooling plants can maintain the designed turbine backpressure (or condensation temperature) during 99% of the time; therefore, adding ITS to those plants will not generate large benefits. For once-through cooling plants near a limited water body like a river or a small lake, adding ITS can bring significant economic

  12. EIS-0423-S1: DOE Notice of Availability of a Draft Supplemental...

    Office of Environmental Management (EM)

    Notice of Availability of a Draft Supplemental Environmental Impact Statement EIS-0423-S1: DOE Notice of Availability of a Draft Supplemental Environmental Impact Statement Draft...

  13. EIS-0423-S1: EPA Notice of Availability of a Draft Supplemental...

    Energy Saver

    Notice of Availability of a Draft Supplemental Environmental Impact Statement EIS-0423-S1: EPA Notice of Availability of a Draft Supplemental Environmental Impact Statement Draft...

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

    SciTech Connect

    1982-03-01

    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.

  15. Solar Two: A successful power tower demonstration project

    SciTech Connect

    REILLY,HUGH E.; PACHECO,JAMES E.

    2000-03-02

    Solar Two, a 10MWe power tower plant in Barstow, California, successfully demonstrated the production of grid electricity at utility-scale with a molten-salt solar power tower. This paper provides an overview of the project, from inception in 1993 to closure in the spring of 1999. Included are discussions of the goals of the Solar Two consortium, the planned-vs.-actual timeline, plant performance, problems encountered, and highlights and successes of the project. The paper concludes with a number of key results of the Solar Two test and evaluation program.

  16. Liquid metal cooled nuclear reactors with passive cooling system

    DOEpatents

    Hunsbedt, Anstein; Fanning, Alan W.

    1991-01-01

    A liquid metal cooled nuclear reactor having a passive cooling system for removing residual heat resulting from fuel decay during reactor shutdown. The passive cooling system comprises a plurality of cooling medium flow circuits which cooperate to remove and carry heat away from the fuel core upon loss of the normal cooling flow circuit to areas external thereto.

  17. BTO Seeks Comments on Draft Building Energy Modeling Roadmap | Department

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    of Energy Seeks Comments on Draft Building Energy Modeling Roadmap BTO Seeks Comments on Draft Building Energy Modeling Roadmap The Department of Energy's Building Technologies Office (BTO) seeks input from stakeholders on a draft Building Energy Modeling Roadmap. The draft Roadmap provides background and context, then outlines steps that BTO's contractor recommends to help increase the use of BEM tools for the design and operation of energy-efficient buildings. The draft Roadmap is based in

  18. EIS-0396: DOE Notice of Availability of the Draft Programmatic

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Environmental Impact Statement | Department of Energy DOE Notice of Availability of the Draft Programmatic Environmental Impact Statement EIS-0396: DOE Notice of Availability of the Draft Programmatic Environmental Impact Statement Global Nuclear Energy Partnership The Department of Energy (DOE) announces the availability of the Draft Global Nuclear Energy Partnership Programmatic Environmental Impact Statement (Draft GNEP PEIS, DOE/EIS-0396). Notice of Availability of Draft Global Nuclear

  19. EIS-0463: EPA Notice of Availability of Draft Environmental Impact

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Statement | Department of Energy EPA Notice of Availability of Draft Environmental Impact Statement EIS-0463: EPA Notice of Availability of Draft Environmental Impact Statement Northern Pass Transmission Line Project, New Hampshire EPA announced the availability of the Draft Environmental Impact Statement (Draft EIS) for the Northern Pass Transmission Line Project. The Draft EIS evaluates the potential environmental impacts of a DOE proposal to grant a Presidential permit to Northern Pass

  20. DOAS, Radiant Cooling Revisited

    SciTech Connect

    Hastbacka, Mildred; Dieckmann, John; Bouza, Antonio

    2012-12-01

    The article discusses dedicated outdoor air systems (DOAS) and radiant cooling technologies. Both of these topics were covered in previous ASHRAE Journal columns. This article reviews the technologies and their increasing acceptance. The two steps that ASHRAE is taking to disseminate DOAS information to the design community, available energy savings and the market potential of radiant cooling systems are addressed as well.

  1. Why Cool Roofs?

    ScienceCinema

    Chu, Steven

    2013-05-29

    By installing a cool roof at DOE, the federal government and Secretary Chu are helping to educate families and businesses about the important energy and cost savings that can come with this simple, low-cost technology. Cool roofs have the potential to quickly and dramatically reduce global carbon emissions while saving money every month on consumers' electrical bills.

  2. Data center cooling method

    DOEpatents

    Chainer, Timothy J.; Dang, Hien P.; Parida, Pritish R.; Schultz, Mark D.; Sharma, Arun

    2015-08-11

    A method aspect for removing heat from a data center may use liquid coolant cooled without vapor compression refrigeration on a liquid cooled information technology equipment rack. The method may also include regulating liquid coolant flow to the data center through a range of liquid coolant flow values with a controller-apparatus based upon information technology equipment temperature threshold of the data center.

  3. Why Cool Roofs?

    SciTech Connect

    Chu, Steven

    2010-01-01

    By installing a cool roof at DOE, the federal government and Secretary Chu are helping to educate families and businesses about the important energy and cost savings that can come with this simple, low-cost technology. Cool roofs have the potential to quickly and dramatically reduce global carbon emissions while saving money every month on consumers' electrical bills.

  4. Cool Earth Solar

    SciTech Connect

    Lamkin, Rob; McIlroy, Andy; Swalwell, Eric; Rajan, Kish

    2013-04-22

    In a public-private partnership that takes full advantage of the Livermore Valley Open Campus (LVOC) for the first time, Sandia National Laboratories and Cool Earth Solar have signed an agreement that could make solar energy more affordable and accessible. In this piece, representatives from Sandia, Cool Earth Solar, and leaders in California government all discuss the unique partnership and its expected impact.

  5. One Cool Roof

    Energy.gov [DOE]

    The 134,629 sq. ft. (about 3 acres) roof of the Office of Scientific and Technical Information (OSTI) building in Oak Ridge, Tennessee is now officially a "Cool Roof" -- making it energy efficient in ways that darker roofs are not. Cool roofs are light in color, and therefore, reflect rather than absorb sunlight.

  6. Rotary engine cooling system

    SciTech Connect

    Jones, C.

    1988-07-26

    A rotary internal combustion engine is described comprising: a rotor housing forming a trochoidal cavity therein; an insert of refractory material received in the recess, an element of a fuel injection and ignition system extending through the housing and insert bores, and the housing having cooling passages extending therethrough. The cooling passages are comprised of drilled holes.

  7. Cool Earth Solar

    ScienceCinema

    Lamkin, Rob; McIlroy, Andy; Swalwell, Eric; Rajan, Kish

    2016-07-12

    In a public-private partnership that takes full advantage of the Livermore Valley Open Campus (LVOC) for the first time, Sandia National Laboratories and Cool Earth Solar have signed an agreement that could make solar energy more affordable and accessible. In this piece, representatives from Sandia, Cool Earth Solar, and leaders in California government all discuss the unique partnership and its expected impact.

  8. Measure Guideline: Ventilation Cooling

    SciTech Connect

    Springer, D.; Dakin, B.; German, A.

    2012-04-01

    The purpose of this measure guideline on ventilation cooling is to provide information on a cost-effective solution for reducing cooling system energy and demand in homes located in hot-dry and cold-dry climates. This guideline provides a prescriptive approach that outlines qualification criteria, selection considerations, and design and installation procedures.

  9. Coherent electron cooling

    SciTech Connect

    Litvinenko,V.

    2009-05-04

    Cooling intense high-energy hadron beams remains a major challenge in modern accelerator physics. Synchrotron radiation is still too feeble, while the efficiency of two other cooling methods, stochastic and electron, falls rapidly either at high bunch intensities (i.e. stochastic of protons) or at high energies (e-cooling). In this talk a specific scheme of a unique cooling technique, Coherent Electron Cooling, will be discussed. The idea of coherent electron cooling using electron beam instabilities was suggested by Derbenev in the early 1980s, but the scheme presented in this talk, with cooling times under an hour for 7 TeV protons in the LHC, would be possible only with present-day accelerator technology. This talk will discuss the principles and the main limitations of the Coherent Electron Cooling process. The talk will describe the main system components, based on a high-gain free electron laser driven by an energy recovery linac, and will present some numerical examples for ions and protons in RHIC and the LHC and for electron-hadron options for these colliders. BNL plans a demonstration of the idea in the near future.

  10. Business Plan in Brief : Draft.

    SciTech Connect

    United States. Bonneville Power Administration.

    1994-06-01

    Competition is revolutionizing the electricity industry, and utilities may never be the same. In the past two decades, government deregulation has transformed the airline, cable television, natural gas, and telecommunications industries. Now, with the passage of new laws which have spurred the growth of independent power and opened up transmission access, the electric utility industry has become the laboratory for change. Here in the Northwest, dramatic changes in the electric industry mean that the Bonneville Power Administration (BPA) is facing real competition. Our customers have more choices than they had in the past. BPA`s draft Business Plan is a direct response to this changing environment. The plan presents how we propose to adapt to the new competitive marketplace. This is a summary of the plan and some of the important issues it raises for regional discussion. The draft plan contains much more detail on all the topics mentioned here. Business Plan is BPA`s first attempt to integrate the long-term strategic plans of the various parts of the agency with a strategic financial plan. Change is evident throughout the plan--change in our operating environment, in our strategic direction, in our customer and constituent relationships, and in BPA itself as an organization.

  11. Turbine blade cooling

    DOEpatents

    Staub, Fred Wolf; Willett, Fred Thomas

    2000-01-01

    A turbine rotor blade comprises a shank portion, a tip portion and an airfoil. The airfoil has a pressure side wall and a suction side wall that are interconnected by a plurality of partition sidewalls, defining an internal cooling passageway within the airfoil. The internal cooling passageway includes at least one radial outflow passageway to direct a cooling medium flow from the shank portion towards the tip portion and at least one radial inflow passageway to direct a cooling medium flow from the tip portion towards the shank portion. A number of mixing ribs are disposed on the partition sidewalls within the radial outflow passageways so as to enhance the thermal mixing of the cooling medium flow, thereby producing improved heat transfer over a broad range of the Buoyancy number.

  12. Turbine blade cooling

    DOEpatents

    Staub, Fred Wolf; Willett, Fred Thomas

    1999-07-20

    A turbine rotor blade comprises a shank portion, a tip portion and an airfoil. The airfoil has a pressure side wall and a suction side wall that are interconnected by a plurality of partition sidewalls, defining an internal cooling passageway within the airfoil. The internal cooling passageway includes at least one radial outflow passageway to direct a cooling medium flow from the shank portion towards the tip portion and at least one radial inflow passageway to direct a cooling medium flow from the tip portion towards the shank portion. A number of mixing ribs are disposed on the partition sidewalls within the radial outflow passageways so as to enhance the thermal mixing of the cooling medium flow, thereby producing improved heat transfer over a broad range of the Buoyancy number.

  13. Water cooled steam jet

    DOEpatents

    Wagner, E.P. Jr.

    1999-01-12

    A water cooled steam jet for transferring fluid and preventing vapor lock, or vaporization of the fluid being transferred, has a venturi nozzle and a cooling jacket. The venturi nozzle produces a high velocity flow which creates a vacuum to draw fluid from a source of fluid. The venturi nozzle has a converging section connected to a source of steam, a diffuser section attached to an outlet and a throat portion disposed there between. The cooling jacket surrounds the venturi nozzle and a suction tube through which the fluid is being drawn into the venturi nozzle. Coolant flows through the cooling jacket. The cooling jacket dissipates heat generated by the venturi nozzle to prevent vapor lock. 2 figs.

  14. Hydronic rooftop cooling systems

    DOEpatents

    Bourne, Richard C.; Lee, Brian Eric; Berman, Mark J.

    2008-01-29

    A roof top cooling unit has an evaporative cooling section that includes at least one evaporative module that pre-cools ventilation air and water; a condenser; a water reservoir and pump that captures and re-circulates water within the evaporative modules; a fan that exhausts air from the building and the evaporative modules and systems that refill and drain the water reservoir. The cooling unit also has a refrigerant section that includes a compressor, an expansion device, evaporator and condenser heat exchangers, and connecting refrigerant piping. Supply air components include a blower, an air filter, a cooling and/or heating coil to condition air for supply to the building, and optional dampers that, in designs that supply less than 100% outdoor air to the building, control the mixture of return and ventilation air.

  15. Water cooled steam jet

    DOEpatents

    Wagner, Jr., Edward P.

    1999-01-01

    A water cooled steam jet for transferring fluid and preventing vapor lock, or vaporization of the fluid being transferred, has a venturi nozzle and a cooling jacket. The venturi nozzle produces a high velocity flow which creates a vacuum to draw fluid from a source of fluid. The venturi nozzle has a converging section connected to a source of steam, a diffuser section attached to an outlet and a throat portion disposed therebetween. The cooling jacket surrounds the venturi nozzle and a suction tube through which the fluid is being drawn into the venturi nozzle. Coolant flows through the cooling jacket. The cooling jacket dissipates heat generated by the venturi nozzle to prevent vapor lock.

  16. Turbine blade cooling

    DOEpatents

    Staub, F.W.; Willett, F.T.

    1999-07-20

    A turbine rotor blade comprises a shank portion, a tip portion and an airfoil. The airfoil has a pressure side wall and a suction side wall that are interconnected by a plurality of partition sidewalls, defining an internal cooling passageway within the airfoil. The internal cooling passageway includes at least one radial outflow passageway to direct a cooling medium flow from the shank portion towards the tip portion and at least one radial inflow passageway to direct a cooling medium flow from the tip portion towards the shank portion. A number of mixing ribs are disposed on the partition sidewalls within the radial outflow passageways so as to enhance the thermal mixing of the cooling medium flow, thereby producing improved heat transfer over a broad range of the Buoyancy number. 13 figs.

  17. Executive Summary: Assessment of Parabolic Trough and Power Tower Solar Technology Cost and Performance Forecasts

    SciTech Connect

    Not Available

    2003-10-01

    Sargent& Lundy LLC conducted an independent analysis of parabolic trough and power tower solar technology cost and performance.

  18. Assessment of Parabolic Trough and Power Tower Solar Technology Cost and Performance Forecasts

    SciTech Connect

    Not Available

    2003-10-01

    Sargent and Lundy LLC conducted an independent analysis of parabolic trough and power tower solar technology cost and performance.

  19. Buildings Energy Data Book: 5.3 Heating, Cooling, and Ventilation Equipment

    Buildings Energy Data Book

    9 Major Commercial HVAC Equipment Lifetimes and Ages Median Equipment Type Lifetime Air Conditioners Through-the-Wall 15 Water-CooledPackage 24 (1) Roof-Top 15 Chillers Reciprocating 20 Centrifugal 25 (1) Absorption 23 Heat Pumps Air-to-Air 15 Water-to-Air 24 (1) Furnaces (gas or oil) 18 Boilers (gas or oil) Hot-Water 24 - 35 Steam 25 - 30 Unit Heaters Gas-Fired or Electric 13 Hot-Water or Steam 20 Cooling Towers (metal or wood) Metal 22 (1) Wood 20 Note(s): Source(s): 1) Data from 2005. All

  20. Solar Power Tower Design Basis Document, Revision 0

    SciTech Connect

    ZAVOICO,ALEXIS B.

    2001-07-01

    This report contains the design basis for a generic molten-salt solar power tower. A solar power tower uses a field of tracking mirrors (heliostats) that redirect sunlight on to a centrally located receiver mounted on top a tower, which absorbs the concentrated sunlight. Molten nitrate salt, pumped from a tank at ground level, absorbs the sunlight, heating it up to 565 C. The heated salt flows back to ground level into another tank where it is stored, then pumped through a steam generator to produce steam and make electricity. This report establishes a set of criteria upon which the next generation of solar power towers will be designed. The report contains detailed criteria for each of the major systems: Collector System, Receiver System, Thermal Storage System, Steam Generator System, Master Control System, and Electric Heat Tracing System. The Electric Power Generation System and Balance of Plant discussions are limited to interface requirements. This design basis builds on the extensive experience gained from the Solar Two project and includes potential design innovations that will improve reliability and lower technical risk. This design basis document is a living document and contains several areas that require trade-studies and design analysis to fully complete the design basis. Project- and site-specific conditions and requirements will also resolve open To Be Determined issues.

  1. MEIC electron cooling program

    DOE PAGES [OSTI]

    Derbenev, Yaroslav S.; Zhang, Yuhong

    2014-12-01

    Cooling of proton and ion beams is essential for achieving high luminosities (up to above 1034 cm-2s-1) for MEIC, a Medium energy Electron-Ion Collider envisioned at JLab [1] for advanced nuclear science research. In the present conceptual design, we utilize the conventional election cooling method and adopted a multi-staged cooling scheme for reduction of and maintaining low beam emittances [2,3,4]. Two electron cooling facilities are required to support the scheme: one is a low energy (up to 2 MeV) DC cooler installed in the MEIC ion pre-booster (with the proton kinetic energy up to 3 GeV); the other is amore » high electron energy (up to 55 MeV) cooler in the collider ring (with the proton kinetic energy from 25 to 100 GeV). The high energy cooler, which is based on the ERL technology and a circulator ring, utilizes a bunched electron beam to cool bunched proton or ion beams. To complete the MEIC cooling concept and a technical design of the ERL cooler as well as to develop supporting technologies, an R&D program has been initiated at Jefferson Lab and significant progresses have been made since then. In this study, we present a brief description of the cooler design and a summary of the progress in this cooling R&D.« less

  2. MEIC electron cooling program

    SciTech Connect

    Derbenev, Yaroslav S.; Zhang, Yuhong

    2014-12-01

    Cooling of proton and ion beams is essential for achieving high luminosities (up to above 1034 cm-2s-1) for MEIC, a Medium energy Electron-Ion Collider envisioned at JLab [1] for advanced nuclear science research. In the present conceptual design, we utilize the conventional election cooling method and adopted a multi-staged cooling scheme for reduction of and maintaining low beam emittances [2,3,4]. Two electron cooling facilities are required to support the scheme: one is a low energy (up to 2 MeV) DC cooler installed in the MEIC ion pre-booster (with the proton kinetic energy up to 3 GeV); the other is a high electron energy (up to 55 MeV) cooler in the collider ring (with the proton kinetic energy from 25 to 100 GeV). The high energy cooler, which is based on the ERL technology and a circulator ring, utilizes a bunched electron beam to cool bunched proton or ion beams. To complete the MEIC cooling concept and a technical design of the ERL cooler as well as to develop supporting technologies, an R&D program has been initiated at Jefferson Lab and significant progresses have been made since then. In this study, we present a brief description of the cooler design and a summary of the progress in this cooling R&D.

  3. Water Cooling | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Water Cooling Jump to: navigation, search Dictionary.png Water Cooling: Water cooling is commonly defined as a method of using water as a heat conduction to remove heat from an...

  4. DOE O XXX.X DRAFT XX-XX-XX

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    DOE O XXX.X DRAFT XX-XX-XX 4 DOE O XXX.X DRAFT XX-XX-XX DOE O XXX.X 3 DRAFT XX-XX-XX DOE O XXX.X Appendix A DRAFT XX-XX-XX A- 1 (and A-2) DOE O XXX.X Attachment 1 DRAFT XX-XX-XX Page 1 (and Page 2) Appendix E DOE O 251.1C E- 6 1-15-09 DOE O XXX.X Attachment 2 DRAFT XX-XX-XX Page 1 (and Page 2) draftDOE O XXX.XdraftDOE O XXX.Xu.s. Department of EnergyORDER draft DOE O XXX.X draft DOE O XXX.X Washington, DC Approved: XX-XX-XXXX SUBJECT: title PURPOSE. (Define the program or subject matter and its

  5. Microsoft Word - CLWR Draft SEIS Comment

    National Nuclear Security Administration (NNSA)

    Draft Suppl emen tal Envi ron mental I mpa ct Statemen t for the Production of Tritium in a Commercial Light Water Reactor U.S. Department of Energy National Nuclear Security ...

  6. DRAFT

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    SRS Will Continue to Lead in Nuclear Technology By David Moody, Ph.D. As we celebrate National Nuclear Science Week, it is timely to reflect on the contributions the Savannah River...

  7. draft

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    3 (08-93) U.S. Department of Energy ORDER FOR SUPPLIES OR SERVICES ORDER FOR SUPPLIES OR SERVICES PAGE OF PAGES IMPORTANT: Mark all packages and papers with contract and/or order numbers. 1. DATE OF ORDER 2. CONTRACT NO. (if any) 3. ORDER NO. 4. REQUISITION/REFERENCE NO. 5. ISSUING OFFICE (Address correspondence to) BUYER NO. CODE 6. SHIP TO: (Consignee and address, ZIP Code) SHIP VIA: 7. TO CONTRACTOR (Name, address and ZIP Code) 8. TYPE OF ORDER 9 9 A. PURCHASE - Reference

  8. DRAFT

    Office of Environmental Management (EM)

    9 Approved July 29, 2009 Recommendation to the Department of Energy Los Alamos Site Office No. 2009-09 Northern New Mexico Citizens' Advisory Board Support for Community Outreach on Environmental Management Education and Training Provided by Los Alamos National Laboratory Background The Northern New Mexico Citizens Advisory Board (NNMCAB) has established a Community Outreach Ad Hoc Committee (called CABCO) to develop and execute innovative approaches to fulfill one of the NNMCAB's mission

  9. DRAFT

    Office of Environmental Management (EM)

    Approved 9-30-09 NORTHERN NEW MEXICO CITIZENS' ADVISORY BOARD (NNMCAB) Environmental Monitoring, Surveillance and Remediation Committee Recommendation to the Department of Energy No. 2009-10 Recommendation to Convene a Panel of Water Quality Experts Background Characterization of underground water has been an important component of the Department of Energy's (DOE) cleanup at Los Alamos National Laboratory (LANL). Water sample measurements from multiple wells have been key to deciding upon

  10. DRAFT

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    there are many exciting and challenging fields associated with careers in nuclear science. ... strong math and science skills and an understanding of prosperous careers they may enjoy. ...

  11. DRAFT

    Office of Environmental Management (EM)

    Advisory Board (SSAB) Chairs' meetings, several site boards, including the Northern New Mexico Citizen's Advisory Board (NNMCAB), have raised the issue of recycling of valuable...

  12. DRAFT

    Office of Environmental Management (EM)

    ... 1,700 shipments of depleted uranium hexafluoride are anticipated by the end of this year. The Nevada Test Site expects to receive a Fernald byproduct shipment early this summer. ...

  13. Draft

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    ... Waste Vitrification 89 90 Hanford Tanks EM's Modest Milestones 90 Fiscal Year 1992 ... Pont placed high- level liquid wastes in underground storage tanks, which would, according ...

  14. Draft

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    ... NUTS site would provide hands-on training for utility personnel throughout the western United States without jeopardizing power reliability or endangering personnel and equipment. ...

  15. DRAFT

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    this vision for our community. It is both an opportunity and a mandate - one this forward thinking region is eagerly embracing. The author, Dr. Susan Winsor, is President...

  16. DRAFT

    Energy.gov [DOE] (indexed site)

    ... emergency generators, and process heaters (13.8 tons of ... (i.e., covers and water or chemical dust ... Missouri's western heavy- oil-producing region (MDNR ...

  17. DRAFT

    Office of Environmental Management (EM)

    Guiding Principles * DOE contractors are subject to applicable U.S. export control laws, ... and protecting sensitive technologies including intellectual property and pending patents. ...

  18. DRAFT

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    is a critical part of the DOE mission and requires special consideration in identifying and protecting sensitive technologies including intellectual property and pending patents. ...

  19. DRAFT

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    33.214 August 2016 ______________________________________________________________________________ 1 Alternative Dispute Resolution [References: FAR 33, DEAR 933] 1.0 Summary of Latest Changes This update: (1) adds a paragraph pertaining to clause DOE-H-2033 Alternative Dispute Resolution and (2) makes administrative changes. 2.0 Discussion This chapter supplements other more primary acquisition regulations and policies contained in the references above and should be considered in the context of

  20. DRAFT

    Energy Saver

    Presentations Procurements Foreign Travel Tech Transfer (WFO, CRADA, NDA, Copyrights, Invention Disclosure DOE TECHNOLOGY TRANSFER SECURITY AREAS: Oversight and Review Obligations...

  1. DRAFT

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    REPORT NUCLEAR WORKFORCE SUMMIT Sponsored by the Savannah River Site Community Reuse Organization (SRSCRO) Prepared By: MAS Consultants, Inc. June 29, 2009 SRSCRO Nuclear Workforce ...

  2. DRAFT

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Nuclear Workforce Initiative: Filling A Local Critical Career Need November 2009 Executive ... availability of a skilled technical workforce to support the pending nuclear renaissance. ...

  3. DRAFT

    Energy.gov [DOE] (indexed site)

    Deputy Director California Department of Water Resources (DWR) at the Quadrennial Energy Review Public Meeting June 19, 2014 San Francisco, California 1. DWR and its role in ...

  4. DRAFT

    National Nuclear Security Administration (NNSA)

    of contaminants (or other materials) in water. ... of Energy National Nuclear Security Administration ... Missouri Hazardous Waste Management Facility NAAQS National ...

  5. DRAFT

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    0, 2012 Roland Risser, Director Building Technologies Program U.S. Department of Energy ... Risser, We are looking forward to our meeting with you and your staff on May 1 st to ...

  6. DRAFT

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Detection - Sandia National Laboratory - Hunter Knox P3 Science of CO 2 Sequestration - ... - Electric Power Research Institute - Robert Trautz P1 Offshore CO 2 Storage Resource ...

  7. DRAFT

    Office of Environmental Management (EM)

    5 Approved May 14, 2009 1 2 3 4 5 6 7 8 9 10 NORTHERN NEW MEXICO CITIZENS' ADVISORY BOARD Recommendation to the Department of Energy 2009-05 Recommendation for 2011 Priorities for...

  8. DRAFT

    Office of Environmental Management (EM)

    4 Approved May 14, 2009 1 2 3 4 5 6 7 8 9 10 11 12 NORTHERN NEW MEXICO CITIZEN'S ADVISORY BOARD Recommendation to the Department of Energy No. 2009-04 Priorities for ARRA Stimulus...

  9. DRAFT

    Office of Environmental Management (EM)

    ... 3.3 (January 2012) 12 DOC, or NRC license is needed before the transfer of any ... Support Network Administrative Basics Counter Intelligence Security Classification Office ...

  10. DRAFT

    National Nuclear Security Administration (NNSA)

    ... to reduce the potential for HEU proliferation and to produce a reliable domestic ... and minimizing the use of nuclear proliferation-sensitive HEU in civilian ...

  11. DRAFT

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    REPORT NUCLEAR WORKFORCE SUMMIT Sponsored by the Savannah River Site Community Reuse Organization (SRSCRO) Prepared By: MAS Consultants, Inc. June 29, 2009 SRSCRO Nuclear Workforce Summit Summary Report MAS Consultants Inc. 1 June 29, 2009 BACKGROUND The Savannah River Site Community Reuse Organization (SRSCRO) is charged with developing and implementing a comprehensive strategy to diversify the economy of the five-county SRSCRO region in the CSRA. The SRSCRO recognized that existing industry

  12. DRAFT

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Nuclear Workforce Initiative: Filling A Local Critical Career Need November 2009 Executive Summary In the brief span of one year, the Savannah River Site Community Reuse Organization (SRSCRO) has proactively addressed one of the most significant economic topics of our region - the availability of a skilled technical workforce to support the pending nuclear renaissance. The SRSCRO is leading local community efforts to meet this challenge. In January 2009, the SRSCRO developed a position paper

  13. DRAFT

    Office of Environmental Management (EM)

    Citizens Advisory Board (NNMCAB) in a letter dated November 20, 2007 to Mr. Rich Mayer, CAB EPA Liaison member, to review the following two Los Alamos National Laboratory (LANL)...

  14. DRAFT

    Office of Environmental Management (EM)

    this community outreach in the four Northern New Mexico counties represented on the CAB. For example, one idea that has had a lot of support is to provide information to...

  15. Lake Erie Connector Project Environmental Assessment Draft

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Volume 1 - Main Document U.S. Department of Energy Office of Electricity Delivery and Energy Reliability Washington DC June 2016 Cover Photo Credits http://www.itclakeerieconnector.com/ DRAFT LAKE ERIE CONNECTOR PROJECT ENVIRONMENTAL ASSESSMENT Volume 1-Main Document DOE/EA-2019 U.S. DEPARTMENT OF ENERGY OFFICE OF ELECTRICITY DELIVERY AND ENERGY RELIABILITY COOPERATING AGENCY U.S. ARMY CORPS OF ENGINEERS This Page Intentionally Left Blank Lake Erie Connector Project Draft Environmental

  16. Radiant Cooling | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    cooling is appropriate for homes, particularly in the arid Southwest. Radiant cooling systems have been embedded in the ceilings of adobe homes, taking advantage of the thermal...

  17. Air Cooling | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Air cooling is limited on ambient temperatures and typically require a larger footprint than Water Cooling, but when water restrictions are great enough to prevent the...

  18. Why Cool Roofs?

    Energy.gov [DOE]

    By installing a cool roof at DOE, the federal government and Secretary Chu are helping to educate families and businesses about the important energy and cost savings that can come with this simple,...

  19. Global Cool Cities Alliance

    Energy.gov [DOE]

    The Department of Energy (DOE) is currently supporting the Global Cool Cities Alliance (GCCA), a non-profit organization that works with cities, regions, and national governments to speed the...

  20. Laser cooling of solids

    SciTech Connect

    Epstein, Richard I; Sheik-bahae, Mansoor

    2008-01-01

    We present an overview of solid-state optical refrigeration also known as laser cooling in solids by fluorescence upconversion. The idea of cooling a solid-state optical material by simply shining a laser beam onto it may sound counter intuitive but is rapidly becoming a promising technology for future cryocooler. We chart the evolution of this science in rare-earth doped solids and semiconductors.

  1. Refrigerant directly cooled capacitors

    SciTech Connect

    Hsu, John S.; Seiber, Larry E.; Marlino, Laura D.; Ayers, Curtis W.

    2007-09-11

    The invention is a direct contact refrigerant cooling system using a refrigerant floating loop having a refrigerant and refrigeration devices. The cooling system has at least one hermetic container disposed in the refrigerant floating loop. The hermetic container has at least one electronic component selected from the group consisting of capacitors, power electronic switches and gating signal module. The refrigerant is in direct contact with the electronic component.

  2. EIS-0488: EPA Notice of Availability of Draft Environmental Impact...

    Energy.gov [DOE] (indexed site)

    EPA announces the availability of the Draft EIS for the Cameron Liquefaction Project, ... EIS-0487: Notice of EIS Adoption EIS-0288-S1: Revision to EPA Notice of Availability Draft ...

  3. EIS-0460: EPA Notice of Availability of the Draft Environmental...

    Office of Environmental Management (EM)

    EPA Notice of Availability of the Draft Environmental Impact Statement EIS-0460: EPA Notice of Availability of the Draft Environmental Impact Statement FutureGen 2.0 Project, ...

  4. Draft LM 2016-2025 Strategic Plan | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Draft LM 2016-2025 Strategic Plan Draft LM 2016-2025 Strategic Plan October 12, 2015 - 2:36pm Addthis What does this project do? Goal 5. Sustain management excellence. We invite ...

  5. Microsoft Word - CATF comments on SEAB Nuclear Draft September...

    Energy Saver

    CLEAN AIR TASK FORCE ON THE DRAFT REPORT OF THE SEAB TASK FORCE ON THE FUTURE OF NUCLEAR POWER September 20, 2016 The draft report correctly identifies a number of the key ...

  6. EA-1919: Notice of Availability of a Draft Programmatic Environmental...

    Energy.gov [DOE] (indexed site)

    comments on the Draft PEA was printed correctly in the Draft PEA but contained an error in the Notice of Availability (NOA) published in the Federal Register on December 12,...

  7. DRAFT 2012 DOE Project Management Workshop Agenda | Department...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    DRAFT 2012 DOE Project Management Workshop Agenda DRAFT 2012 DOE Project Management Workshop Agenda 2012 Workshop AgendaVer25 (For Distribution).pdf (38.46 KB) More Documents & ...

  8. H-Prize Draft Guideline Comments Deadline Extended to Monday...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    H-Prize Draft Guideline Comments Deadline Extended to Monday, April 28 H-Prize Draft Guideline Comments Deadline Extended to Monday, April 28 April 22, 2014 - 2:00pm Addthis The ...

  9. Draft Advanced Fossil Energy Projects Solicitation Public Comments

    Office of Energy Efficiency and Renewable Energy (EERE)

    U.S. Department of Energy Loan Programs Office: Draft Advanced Fossil Energy Projects Solicitation Public Comments

  10. Energy Department Issues Draft Request For Proposal for Nuclear...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Nuclear Regulatory Commission Licensed Facilities Procurement Energy Department Issues Draft Request For Proposal for Nuclear Regulatory Commission Licensed Facilities Procurement ...

  11. Los Alamos Legacy Cleanup Contract Draft Request for Proposal | Department

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    of Energy Legacy Cleanup Contract Draft Request for Proposal Los Alamos Legacy Cleanup Contract Draft Request for Proposal David Rhodes, DOE EM-LA, Presented on the LLCC Draft Request for Proposal. LLCC Draft RFP - July 27, 2016 (8.09 MB) More Documents & Publications Department of Energy Environmental Management Workshop LANS Bridge Contract EM Projects Perspective - Jack Surash, Deputy Assistant Secretary for Acquisition and Project Management, Environmental Management

  12. Progress Energy draft regarding Smart Grid RFI: Addressing Policy and

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Logistical Challenges | Department of Energy Progress Energy draft regarding Smart Grid RFI: Addressing Policy and Logistical Challenges Progress Energy draft regarding Smart Grid RFI: Addressing Policy and Logistical Challenges Progress Energy draft regarding Smart Grid RFI: Addressing Policy and Logistical Challenges Progress Energy draft regarding Smart Grid RFI: Addressing Policy and Logistical Challenges (549.44 KB) More Documents & Publications Comments of DRSG to DOE Smart Grid

  13. EIS-0523: Draft Programmatic Environmental Impact Statement | Department of

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Energy : Draft Programmatic Environmental Impact Statement EIS-0523: Draft Programmatic Environmental Impact Statement Nationwide Public Safety Broadband Network Draft Programmatic Environmental Impact Statement for the Non-Contiguous United States The First Responder Network Authority (FirstNet) in the U.S. Department of Commerce has prepared a Draft Programmatic Environmental Impact Statement (PEIS) to analyze the potential environmental impacts of a proposal to design, deploy and operate

  14. Microsoft Word - SEAB Federal Energy Management DRAFT REPORT...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Secretary of Energy Advisory Board Task Force on Federal Energy Management Draft Report i Table of Contents Acronyms ......

  15. Draft STD-1027 Supplemental Directive (Alternate Hazard Categorization...

    Office of Environmental Management (EM)

    STD-1027 Supplemental Directive (Alternate Hazard Categorization) Methodology Draft STD-1027 Supplemental Directive (Alternate Hazard Categorization) Methodology Presentation from...

  16. EIS-0424: Draft Environmental Impact Statement | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    4: Draft Environmental Impact Statement EIS-0424: Draft Environmental Impact Statement Klickitat Hatchery Complex Program; Klickitat and Yakima Counties, WA BPA issued a draft EIS that evaluates the potential environmental impacts of BPA's proposed funding of the construction, operation, and maintenance of modifications to the Klickitat Hatchery and the Yakama Nation's Hatchery Complex Program. For more information, see: www.energy.gov/node/299947. Download Document EIS-0424: Draft Environmental

  17. EIS-0481: DOE Notice of Availability of Draft Programmatic Environmental

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Impact Statement | Department of Energy DOE Notice of Availability of Draft Programmatic Environmental Impact Statement EIS-0481: DOE Notice of Availability of Draft Programmatic Environmental Impact Statement Engineered High Energy Crop (EHEC) Programs Draft Programmatic Environmental Impact Statement DOE announces the availablity of the Engineered High Energy Crop (EHEC) Programs Draft Programmatic Environmental Impact Statement for public review and comment. Comment period ends: 3/17/15.

  18. EIS-0481: EPA Notice of Availability of Draft Programmatic Environmental

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Impact Statement | Department of Energy EPA Notice of Availability of Draft Programmatic Environmental Impact Statement EIS-0481: EPA Notice of Availability of Draft Programmatic Environmental Impact Statement Engineered High Energy Crop (EHEC) Programs Draft Programmatic Environmental Impact Statement EPA announces the availability of the Engineered High Energy Crop (EHEC) Programs Draft Programmatic Environmental Impact Statement for public review and comment. Comment period ends:

  19. Draft Environmental Assessment for Proposed Rule, 10 CFR Part 433 |

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Department of Energy Draft Environmental Assessment for Proposed Rule, 10 CFR Part 433 Draft Environmental Assessment for Proposed Rule, 10 CFR Part 433 Document details a the draft environmental assessment for proposed rule 10 CFR Part 433, Energy Conservation and Fossil Fuel-Generated Energy Consumption Reduction Standards for the Design and Construction of New Federal Commercial and Multi-Family High-Rise Residential Buildings Download the draft environmental assessment for proposed rule

  20. Energy Department Issues Draft Request For Proposal for the Environmen...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    the Environmental Management Headquarters Information Technology Services Procurement Energy Department Issues Draft Request For Proposal for the Environmental Management ...

  1. National Electric Transmission Congestion Study - Draft for Public Comment

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    August 2014 | Department of Energy Study - Draft for Public Comment August 2014 National Electric Transmission Congestion Study - Draft for Public Comment August 2014 On August 19, 2014, the Department issued a Federal Register Notice announcing the availability of a draft of its National Electric Transmission Congestion Study for public comment. The draft study is available below. The public comment period closed on October 20, 2014. Comments submitted by the public were posted online.

  2. Blackout 2003: Conference for public review draft report on implementation

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    of the task force recommendations | Department of Energy Conference for public review draft report on implementation of the task force recommendations Blackout 2003: Conference for public review draft report on implementation of the task force recommendations On Thursday, June 22, in Washington, D.C., the U.S.-Canada Power System Outage Task Force will hold a conference for stakeholders and the public to comment on the draft of the final report of the Task Force. The draft report assesses

  3. Passive containment cooling system

    DOEpatents

    Billig, Paul F.; Cooke, Franklin E.; Fitch, James R.

    1994-01-01

    A passive containment cooling system includes a containment vessel surrounding a reactor pressure vessel and defining a drywell therein containing a non-condensable gas. An enclosed wetwell pool is disposed inside the containment vessel, and a gravity driven cooling system (GDCS) pool is disposed above the wetwell pool in the containment vessel and is vented to the drywell. An isolation pool is disposed above the GDCS pool and includes an isolation condenser therein. The condenser has an inlet line disposed in flow communication with the drywell for receiving the non-condensable gas along with any steam released therein following a loss-of-coolant accident (LOCA). The condenser also has an outlet line disposed in flow communication with the drywell for returning to the drywell both liquid condensate produced upon cooling of the steam and the non-condensable gas for reducing pressure within the containment vessel following the LOCA.

  4. Passive containment cooling system

    DOEpatents

    Billig, P.F.; Cooke, F.E.; Fitch, J.R.

    1994-01-25

    A passive containment cooling system includes a containment vessel surrounding a reactor pressure vessel and defining a drywell therein containing a non-condensable gas. An enclosed wetwell pool is disposed inside the containment vessel, and a gravity driven cooling system (GDCS) pool is disposed above the wetwell pool in the containment vessel and is vented to the drywell. An isolation pool is disposed above the GDCS pool and includes an isolation condenser therein. The condenser has an inlet line disposed in flow communication with the drywell for receiving the non-condensable gas along with any steam released therein following a loss-of-coolant accident (LOCA). The condenser also has an outlet line disposed in flow communication with the drywell for returning to the drywell both liquid condensate produced upon cooling of the steam and the non-condensable gas for reducing pressure within the containment vessel following the LOCA. 1 figure.

  5. Monitoring Cray Cooling Systems

    SciTech Connect

    Maxwell, Don E; Ezell, Matthew A; Becklehimer, Jeff; Donovan, Matthew J; Layton, Christopher C

    2014-01-01

    While sites generally have systems in place to monitor the health of Cray computers themselves, often the cooling systems are ignored until a computer failure requires investigation into the source of the failure. The Liebert XDP units used to cool the Cray XE/XK models as well as the Cray proprietary cooling system used for the Cray XC30 models provide data useful for health monitoring. Unfortunately, this valuable information is often available only to custom solutions not accessible by a center-wide monitoring system or is simply ignored entirely. In this paper, methods and tools used to harvest the monitoring data available are discussed, and the implementation needed to integrate the data into a center-wide monitoring system at the Oak Ridge National Laboratory is provided.

  6. Review the draft Title V with care

    SciTech Connect

    Romzick, P.G.; Heitz, D.R.

    1998-12-31

    The Title V permitting process is well underway for many industries and just beginning for others. Waste Management recently conducted the first in-depth reviews of draft Title V permits for some of its municipal solid waste (MSW) landfills. The Company`s comments on the draft permits were numerous. The draft permits contained some obvious as well as several less obvious errors. The results of these reviews identified a need to scrutinize carefully each and every draft permit issued to the Company`s landfills. The Company expects to require Title V permits for most of its 140 plus active landfills, due to the recently-enacted New Source Performance Standards for Municipal Solid Waste Landfills. Many issues of concern were encountered during the review. Had these issues not been identified, the facility would have had to live with an unnecessarily burdensome permit consisting of permit conditions that were more strict than the regulations required and lacking protections allowed by the law. This paper discusses many of the issues of concern identified during the draft permit review. Although many of the issues addressed in this paper are specific to MSW landfills, many of the issues are also applicable to Title V permits in general.

  7. Superconductor rotor cooling system

    DOEpatents

    Gamble, Bruce B.; Sidi-Yekhlef, Ahmed; Schwall, Robert E.; Driscoll, David I.; Shoykhet, Boris A.

    2004-11-02

    A system for cooling a superconductor device includes a cryocooler located in a stationary reference frame and a closed circulation system external to the cryocooler. The closed circulation system interfaces the stationary reference frame with a rotating reference frame in which the superconductor device is located. A method of cooling a superconductor device includes locating a cryocooler in a stationary reference frame, and transferring heat from a superconductor device located in a rotating reference frame to the cryocooler through a closed circulation system external to the cryocooler. The closed circulation system interfaces the stationary reference frame with the rotating reference frame.

  8. Superconductor rotor cooling system

    DOEpatents

    Gamble, Bruce B.; Sidi-Yekhlef, Ahmed; Schwall, Robert E.; Driscoll, David I.; Shoykhet, Boris A.

    2002-01-01

    A system for cooling a superconductor device includes a cryocooler located in a stationary reference frame and a closed circulation system external to the cryocooler. The closed circulation system interfaces the stationary reference frame with a rotating reference frame in which the superconductor device is located. A method of cooling a superconductor device includes locating a cryocooler in a stationary reference frame, and transferring heat from a superconductor device located in a rotating reference frame to the cryocooler through a closed circulation system external to the cryocooler. The closed circulation system interfaces the stationary reference frame with the rotating reference frame.

  9. Anomalous law of cooling

    SciTech Connect

    Lapas, Luciano C.; Ferreira, Rogelma M. S.; Rubí, J. Miguel; Oliveira, Fernando A.

    2015-03-14

    We analyze the temperature relaxation phenomena of systems in contact with a thermal reservoir that undergoes a non-Markovian diffusion process. From a generalized Langevin equation, we show that the temperature is governed by a law of cooling of the Newton’s law type in which the relaxation time depends on the velocity autocorrelation and is then characterized by the memory function. The analysis of the temperature decay reveals the existence of an anomalous cooling in which the temperature may oscillate. Despite this anomalous behavior, we show that the variation of entropy remains always positive in accordance with the second law of thermodynamics.

  10. HomeCooling101

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Saver 101: Everything You Need to Know About 6% $29B The percentage of the average household's energy use that goes to space cooling. 2/3 of all U.S. homes have air conditioners. #DidYouKnow: The amount it costs homeowners every year to power their air conditioners. You can reduce air conditioning energy use by 20-50 percent by switching to high-efficiency air conditioners and taking other actions to lower your home cooling costs. 20-50% Ventilation Ventilation is the least expensive and most

  11. Combustor liner cooling system

    DOEpatents

    Lacy, Benjamin Paul; Berkman, Mert Enis

    2013-08-06

    A combustor liner is disclosed. The combustor liner includes an upstream portion, a downstream end portion extending from the upstream portion along a generally longitudinal axis, and a cover layer associated with an inner surface of the downstream end portion. The downstream end portion includes the inner surface and an outer surface, the inner surface defining a plurality of microchannels. The downstream end portion further defines a plurality of passages extending between the inner surface and the outer surface. The plurality of microchannels are fluidly connected to the plurality of passages, and are configured to flow a cooling medium therethrough, cooling the combustor liner.

  12. Cool Roofing Technologies

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Cool Roofing Technologies Hashem Akbari Heat Island Group Ernest Orlando Lawrence Berkeley National Laboratory Tel: 510-486-4287 E_mail: H_Akbari@LBL.gov http://HeatIsland.LBL.gov STEAB Visit to LBNL August 14, 2007 2 Orthophoto of Sacramento 3 Under the Canopy Fabric of Sacramento, CA 0 10 20 30 40 50 60 70 80 Downtown Industrial Industrial Office Com. Com. Res. % of surface area Grass Roofs Pavements Others Cooling roofs by increasing solar reflectance * A conventional dark roof absorbs most

  13. EIS-0425: Draft Environmental Impact Statement | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Draft Environmental Impact Statement EIS-0425: Draft Environmental Impact Statement Bonneville Power Administration Mid-Columbia Coho Restoration Project, Chelan and Okanogan Counties, WA Draft Environmental Impact Statement for the Mid-Columbia Coho Restoration Program, DOE/EIS-0425 (June 2011) (25.49 MB) More Documents & Publications EIS-0425: Final

  14. Announcement of Draft Workforce Restructuring Plan | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Announcement of Draft Workforce Restructuring Plan Announcement of Draft Workforce Restructuring Plan Attachment 3 - Announcement of Draft Workforce Restructuring Plan (8.7 KB) More Documents & Publications Workforce Restructuring Policy General Workforce Restructuring Plan Template Self-Select Voluntary Separation Plan Template

  15. Recommendations: Draft 2011 Section 999 Annual Plan | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    1 Section 999 Annual Plan Recommendations: Draft 2011 Section 999 Annual Plan UDAC Recommendations on Draft 2011 Section 999 Annual Plan (911.42 KB) More Documents & Publications Recommendations: Draft 2012 Annual Plan UDAC Next Steps UDAC Meeting - February 2011

  16. Turbomachine rotor with improved cooling

    DOEpatents

    Hultgren, Kent Goran (Winter Park, FL); McLaurin, Leroy Dixon (Winter Springs, FL); Bertsch, Oran Leroy (Titusville, FL); Lowe, Perry Eugene (Oviedo, FL)

    1998-01-01

    A gas turbine rotor has an essentially closed loop cooling air scheme in which cooling air drawn from the compressor discharge air that is supplied to the combustion chamber is further compressed, cooled, and then directed to the aft end of the turbine rotor. Downstream seal rings attached to the downstream face of each rotor disc direct the cooling air over the downstream disc face, thereby cooling it, and then to cooling air passages formed in the rotating blades. Upstream seal rings attached to the upstream face of each disc direct the heated cooling air away from the blade root while keeping the disc thermally isolated from the heated cooling air. From each upstream seal ring, the heated cooling air flows through passages in the upstream discs and is then combined and returned to the combustion chamber from which it was drawn.

  17. Turbomachine rotor with improved cooling

    DOEpatents

    Hultgren, K.G.; McLaurin, L.D.; Bertsch, O.L.; Lowe, P.E.

    1998-05-26

    A gas turbine rotor has an essentially closed loop cooling air scheme in which cooling air drawn from the compressor discharge air that is supplied to the combustion chamber is further compressed, cooled, and then directed to the aft end of the turbine rotor. Downstream seal rings attached to the downstream face of each rotor disc direct the cooling air over the downstream disc face, thereby cooling it, and then to cooling air passages formed in the rotating blades. Upstream seal rings attached to the upstream face of each disc direct the heated cooling air away from the blade root while keeping the disc thermally isolated from the heated cooling air. From each upstream seal ring, the heated cooling air flows through passages in the upstream discs and is then combined and returned to the combustion chamber from which it was drawn. 5 figs.

  18. Measure Guideline: Ventilation Cooling

    SciTech Connect

    Springer, D.; Dakin, B.; German, A.

    2012-04-01

    The purpose of this measure guideline is to provide information on a cost-effective solution for reducing cooling system energy and demand in homes located in hot-dry and cold-dry climates. This guideline provides a prescriptive approach that outlines qualification criteria, selection considerations, and design and installation procedures.

  19. Guide to Cool Roofs

    SciTech Connect

    2011-02-01

    Traditional dark-colored roofing materials absorb sunlight, making them warm in the sun and increasing the need for air conditioning. White or special "cool color" roofs absorb less sunlight, stay cooler in the sun and transmit less heat into the building.

  20. Performance evaluation of an active solar cooling system utilizing low cost plastic collectors and an evaporatively-cooled absorption chiller. Final report

    SciTech Connect

    Lof, G.O.G.; Westhoff, M.A.; Karaki, S.

    1984-02-01

    During the summer of 1982, air conditioning in Solar House III at Colorado State University was provided by an evaporatively-cooled absorption chiller. The single-effect lithium bromide chiller provided by Arkla Industries is an experimental three-ton unit from which heat is rejected by direct evaporative cooling of the condenser and absorber walls, thereby eliminating the need for a separate cooling tower. Domestic hot water was also provided by use of a double-walled heat exchanger and 300-l (80-gal) hot water tank. For solar heat supply to the cooling system, plastic thin film collectors developed by Brookhaven National Laboratory were installed on the roof of Solar House III. Failure to withstand stagnation temperatures forced replacement of solar energy with an electric heat source. Objectives of the project were: (1) evaluation of system performance over the course of one cooling season in Fort collins, Colorado; (2) optimization of system operation and control; (3) development of a TRNSYS compatible model of the chiller; and (4) determination of cooling system performance in several US climates by use of the model.

  1. Cool Roofs | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Design » Design for Efficiency » Cool Roofs Cool Roofs Learn how switching to a cool roof can save you money and benefit the environment. A cool roof is one that has been designed to reflect more sunlight and absorb less heat than a standard roof. Cool roofs can be made of a highly reflective type of paint, a sheet covering, or highly reflective tiles or shingles. Nearly any type of building can benefit from a cool roof, but consider the climate and other factors before deciding to install

  2. Electron Cooling Study for MEIC

    SciTech Connect

    He, Zhang; Douglas, David R.; Derbenev, Yaroslav S.; Zhang, Yuhong

    2015-09-01

    Electron cooling of the ion beams is one critical R&D to achieve high luminosities in JLab's MEIC proposal. In the present MEIC design, a multi-staged cooling scheme is adapted, which includes DC electron cooling in the booster ring and bunched beam electron cooling in the collider ring at both the injection energy and the collision energy. We explored the feasibility of using both magnetized and non-magnetized electron beam for cooling, and concluded that a magnetized electron beam is necessary. Electron cooling simulation results for the newly updated MEIC design is also presented.

  3. Final Draft of RACER Audit

    SciTech Connect

    Paige, Karen Schultz; Gomez, Penelope E.

    2011-01-01

    This document describes the approach Waste and Environmental Services - Environmental Data and Analysis plans to take to resolve the issues presented in a recent audit of the WES-EDA Environmental Database relative to the RACER database. A majority of the issues discovered in the audit will be resolved in May 2011 when the WES-EDA Environmental Database, along with other LANL databases, are integrated and moved to a new vendor providing an Environmental Information Management (EIM) system that allows reporting capabilities for all users directly from the database. The EIM system will reside in a publicly accessible LANL cloud-based software system. When this transition occurs, the data quality, completeness, and access will change significantly. In the remainder of this document, this new structure will be referred to as the LANL Cloud System In general, our plan is to address the issues brought up in this audit in three ways: (1) Data quality issues such as units and detection status, which impinge upon data usability, will be resolved as soon possible so that data quality is maintained. (2) Issues requiring data cleanup, such as look up tables, legacy data, locations, codes, and significant data discrepancies, will be addressed as resources permit. (3) Issues associated with data feed problems will be eliminated by the LANL Cloud System, because there will be no data feed. As discussed in the paragraph above, in the future the data will reside in a publicly accessible system. Note that report writers may choose to convert, adapt, or simplify the information they receive officially through our data base, thereby introducing data discrepancies between the data base and the public report. It is not always possible to incorporate and/or correct these errors when they occur. Issues in the audit will be discussed in the order in which they are presented in the audit report. Clarifications will also be noted as the audit report was a draft document, at the time of this

  4. Cooling Post: US lab to research caloric cooling materials |...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    on the Cooling Post website. The UK-based Cooling Post carries stories of interest to the air conditioning and refrigeration industry from around the world. Read the story HERE.

  5. New Cool Roof Coatings and Affordable Cool Color Asphalt

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    New Cool Roof Coatings and Affordable Cool Color Asphalt Shingles Meng-Dawn Cheng Oak ... roof coatings and asphalt shingles to reduce energy consumption of new and existing roofs. ...

  6. AmeriFlux US-Skr Shark River Slough (Tower SRS-6) Everglades...

    Office of Scientific and Technical Information (OSTI)

    The tower was offline until the following October in order to continue temporally consistent measurements. In post-hurricane conditions, ecosystem respiration rates and solar ...

  7. Maintaining gas cooling equipment

    SciTech Connect

    Rector, J.D.

    1997-05-01

    An often overlooked key to satisfactory operation and longevity of any mechanical device is proper operation and maintenance in accordance with the manufacturer`s written instructions. Absorption chillers, although they use a different technology than the more familiar vapor compression cycle to produce chilled water, operate successfully in a variety of applications if operated and maintained properly. Maintenance procedures may be more frequent than those required for vapor compression chillers, but they are also typically less complex. The goal of this article is to describe the basic operation of an absorption chiller to provide an understanding of the relatively simple tasks required to keep the machine operating at maximum efficiency for its design life and beyond. A good starting point is definitions. Gas cooling equipment is generally defined as alternative energy, non-electric cooling products. This includes absorption chillers, engine-drive chillers and packaged desiccant units, among others. Natural gas combustion drives the equipment.

  8. Water Cooled Mirror Design

    SciTech Connect

    Dale, Gregory E.; Holloway, Michael Andrew; Pulliam, Elias Noel

    2015-03-30

    This design is intended to replace the current mirror setup being used for the NorthStar Moly 99 project in order to monitor the target coupon. The existing setup has limited movement for camera alignment and is difficult to align properly. This proposed conceptual design for a water cooled mirror will allow for greater thermal transfer between the mirror and the water block. It will also improve positioning of the mirror by using flexible vacuum hosing and a ball head joint capable of a wide range of motion. Incorporating this design into the target monitoring system will provide more efficient cooling of the mirror which will improve the amount of diffraction caused by the heating of the mirror. The process of aligning the mirror for accurate position will be greatly improved by increasing the range of motion by offering six degrees of freedom.

  9. Cooled particle accelerator target

    DOEpatents

    Degtiarenko, Pavel V.

    2005-06-14

    A novel particle beam target comprising: a rotating target disc mounted on a retainer and thermally coupled to a first array of spaced-apart parallel plate fins that extend radially inwardly from the retainer and mesh without physical contact with a second array of spaced-apart parallel plate fins that extend radially outwardly from and are thermally coupled to a cooling mechanism capable of removing heat from said second array of spaced-apart fins and located within the first array of spaced-apart parallel fins. Radiant thermal exchange between the two arrays of parallel plate fins provides removal of heat from the rotating disc. A method of cooling the rotating target is also described.

  10. AIR COOLED NEUTRONIC REACTOR

    DOEpatents

    Fermi, E.; Szilard, L.

    1958-05-27

    A nuclear reactor of the air-cooled, graphite moderated type is described. The active core consists of a cubicle mass of graphite, approximately 25 feet in each dimension, having horizontal channels of square cross section extending between two of the opposite faces, a plurality of cylindrical uranium slugs disposed in end to end abutting relationship within said channels providing a space in the channels through which air may be circulated, and a cadmium control rod extending within a channel provided in the moderator. Suitable shielding is provlded around the core, as are also provided a fuel element loading and discharge means, and a means to circulate air through the coolant channels through the fuel charels to cool the reactor.

  11. Cooling System Basics | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Space Heating & Cooling » Cooling System Basics Cooling System Basics August 16, 2013 - 1:08pm Addthis Cooling technologies used in homes and buildings include ventilation, evaporative cooling, air conditioning, absorption cooling, and radiant cooling. Learn more about how these technologies work. Ventilation Ventilation allows air to move into and out of homes and buildings either by natural or mechanical means. Evaporative Cooling In dry climates, evaporative cooling or "swamp

  12. Diesel lubrication and cooling systems

    SciTech Connect

    Not Available

    1994-01-01

    The film describes the parts of diesel lubricating and cooling systems and how they work in relation to each other.

  13. Diesel lubrication and cooling systems

    SciTech Connect

    1994-12-31

    The film describes the parts of diesel lubricating and cooling systems and how they work in relation to each other.

  14. NREL: Technology Deployment - Resource Maps for Taller Towers Reveal New

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Areas for Wind Project Development Resource Maps for Taller Towers Reveal New Areas for Wind Project Development News Mapping the Frontier of New Wind Power Potential Publications Southeastern Wind Coalition fact sheets Southeast Wind Energy Fact Sheet Enabling Wind Power Nationwide Wind Vision: A New Era for Wind Power in the United States Sponsors AWS Truepower Southeastern Wind Coalition Key Partners U.S. Department of Energy Contact Ian Baring-Gould, 303-384-7021 A picture of a tall wind

  15. Conduction cooled tube supports

    DOEpatents

    Worley, Arthur C.; Becht, IV, Charles

    1984-01-01

    In boilers, process tubes are suspended by means of support studs that are in thermal contact with and attached to the metal roof casing of the boiler and the upper bend portions of the process tubes. The support studs are sufficiently short that when the boiler is in use, the support studs are cooled by conduction of heat to the process tubes and the roof casing thereby maintaining the temperature of the stud so that it does not exceed 1400.degree. F.

  16. Cab Heating and Cooling

    SciTech Connect

    Damman, Dennis

    2005-10-31

    Schneider National, Inc., SNI, has concluded the Cab Heating and Cooling evaluation of onboard, engine off idling solutions. During the evaluation period three technologies were tested, a Webasto Airtronic diesel fired heater for cold weather operation, and two different approaches to cab cooling in warm weather, a Webasto Parking Cooler, phase change storage system and a Bergstrom Nite System, a 12 volt electrical air conditioning approach to cooling. Diesel fired cab heaters were concluded to provide adequate heat in winter environments down to 10 F. With a targeted idle reduction of 17%, the payback period is under 2 years. The Webasto Parking Cooler demonstrated the viability of this type of technology, but required significant driver involvement to achieve maximum performance. Drivers rated the technology as ''acceptable'', however, in individual discussions it became apparent they were not satisfied with the system limitations in hot weather, (over 85 F). The Bergstrom Nite system was recognized as an improvement by drivers and required less direct driver input to operate. While slightly improved over the Parking Cooler, the hot temperature limitations were only slightly better. Neither the Parking Cooler or the Nite System showed any payback potential at the targeted 17% idle reduction. Fleets who are starting at a higher idle baseline may have a more favorable payback.

  17. Lamination cooling system

    DOEpatents

    Rippel, Wally E.; Kobayashi, Daryl M.

    2005-10-11

    An electric motor, transformer or inductor having a lamination cooling system including a stack of laminations, each defining a plurality of apertures at least partially coincident with apertures of adjacent laminations. The apertures define a plurality of cooling-fluid passageways through the lamination stack, and gaps between the adjacent laminations are sealed to prevent a liquid cooling fluid in the passageways from escaping between the laminations. The gaps are sealed by injecting a heat-cured sealant into the passageways, expelling excess sealant, and heat-curing the lamination stack. The apertures of each lamination can be coincident with the same-sized apertures of adjacent laminations to form straight passageways, or they can vary in size, shape and/or position to form non-axial passageways, angled passageways, bidirectional passageways, and manifold sections of passageways that connect a plurality of different passageway sections. Manifold members adjoin opposite ends of the lamination stack, and each is configured with one or more cavities to act as a manifold to adjacent passageway ends. Complex manifold arrangements can create bidirectional flow in a variety of patterns.

  18. Western Cooling Efficiency Center | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Cooling Efficiency Center Jump to: navigation, search Name: Western Cooling Efficiency Center Place: Davis, CA Website: http: References: Western Cooling Efficiency Center 1...

  19. Hybrid Radiator Cooling System | Argonne National Laboratory

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Radiator Cooling System Technology available for licensing: Hybrid radiator cooling system uses conventional finned air cooling under most driving conditions that would be...

  20. Cool Farm Tool | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    aboutussuppliersustainablesourcingtools?WT.LHNAV Cost: Free Language: English Cool Farm Tool Screenshot References: Cool Farm Tool 1 Overview "The Cool Farm Tool...