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Note: This page contains sample records for the topic "rod pumps view" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


1

Rod Pumping, Gas Well Dewatering and Gas Lift  

NLE Websites -- All DOE Office Websites (Extended Search)

new in artificial new in artificial lift? Production technology Part 1: In this first of two monthly reports, new innovations that improve operations and/or reduced expenses are described in the categories of Beam/ Rod Pumping, Gas Well Dewatering and Gas Lift ŝ ŝ JAMES F. LEA, PL Tech LLC; and HERALD W. WINKLER, Texas Tech University It has been another banner year for ar- tificial lift innovations. The offerings have been prolific enough, that we have split this year's report into two halves. This first-half report will cover eight develop- ments in Beam/Rod Pumping, Gas Lift and Gas Well Dewatering. In beam/rod pumping, a "three-in- one" solution is discussed, whereby coiled tubing is not only used as a pumping string, but as a means for the operator to preventively treat the well. Another item

2

The Smart Engineering Apprentice (SEA) Project is an advanced artificial intelligence model that aims to predict the future failure of rod pump units. Innovative and modern, this  

E-Print Network (OSTI)

increase the amount of usable oil retrieved from each well by the installed rod pump unit therefore that aims to predict the future failure of rod pump units. Innovative and modern, this novel technology provides a new approach to the maintenance of rod pumps through a system that increases efficiency while

Shahabi, Cyrus

3

The Smart Engineering Apprentice (SEA) Project is an advanced artificial intelligence model that aims to predict the future failure of rod pump units. Innovative and modern, this novel  

E-Print Network (OSTI)

increase the amount of usable oil retrieved from each well by the installed rod pump unit therefore that aims to predict the future failure of rod pump units. Innovative and modern, this novel technology provides a new approach to the maintenance of rod pumps through a system that increases efficiency while

Wang, Hai

4

PUMPS  

DOE Patents (OSTI)

A pump is described for conveving liquids, particure it is not advisable he apparatus. The to be submerged in the liquid to be pumped, a conduit extending from the high-velocity nozzle of the injector,and means for applying a pulsating prcesure to the surface of the liquid in the conduit, whereby the surface oscillates between positions in the conduit. During the positive half- cycle of an applied pulse liquid is forced through the high velocity nozzle or jet of the injector and operates in the manner of the well known water injector and pumps liquid from the main intake to the outlet of the injector. During the negative half-cycle of the pulse liquid flows in reverse through the jet but no reverse pumping action takes place.

Thornton, J.D.

1959-03-24T23:59:59.000Z

5

CONTROL ROD  

DOE Patents (OSTI)

This patent shows a method of making a fuel or control rod for a nuclear reactor. Fuel or control material is placed within a tube and plugs of porous metal wool are inserted at both ends. The metal wool is then compacted and the tube compressed around it as by swaging, thereby making the plugs liquid- impervious but gas-pervious. (AEC)

Walker, D.E.; Matras, S.

1963-04-30T23:59:59.000Z

6

Subsea Pumped Hydro Storage.  

E-Print Network (OSTI)

??A new technology for energy storage called Subsea Pumped Hydro Storage (SPHS) has been evaluated from a techno-economical point of view. Intermittent renewable energy sources (more)

Erik, Almen John

2013-01-01T23:59:59.000Z

7

Control rod drive hydraulic system  

DOE Patents (OSTI)

A hydraulic system for a control rod drive (CRD) includes a variable output-pressure CR pump operable in a charging mode for providing pressurized fluid at a charging pressure, and in a normal mode for providing the pressurized fluid at a purge pressure, less than the charging pressure. Charging and purge lines are disposed in parallel flow between the CRD pump and the CRD. A hydraulic control unit is disposed in flow communication in the charging line and includes a scram accumulator. An isolation valve is provided in the charging line between the CRD pump and the scram accumulator. A controller is operatively connected to the CRD pump and the isolation valve and is effective for opening the isolation valve and operating the CRD pump in a charging mode for charging the scram accumulator, and closing the isolation valve and operating the CRD pump in a normal mode for providing to the CRD through the purge line the pressurized fluid at a purge pressure lower than the charging pressure.

Ose, Richard A. (San Jose, CA)

1992-01-01T23:59:59.000Z

8

Rod examination gauge  

DOE Patents (OSTI)

The present invention is directed to a semi-automatic rod examination gauge for performing a large number of exacting measurements on radioactive fuel rods. The rod examination gauge performs various measurements underwater with remote controlled machinery of high reliability. The rod examination gauge includes instruments and a closed circuit television camera for measuring fuel rod length, free hanging bow measurement, diameter measurement, oxide thickness measurement, cladding defect examination, rod ovality measurement, wear mark depth and volume measurement, as well as visual examination. A control system is provided including a programmable logic controller and a computer for providing a programmed sequence of operations for the rod examination and collection of data.

Bacvinskas, W.S.; Bayer, J.E.; Davis, W.W.; Fodor, G.; Kikta, T.J.; Matchett, R.L.; Nilsen, R.J.; Wilczynski, R.

1991-12-31T23:59:59.000Z

9

Compact and highly efficient laser pump cavity  

SciTech Connect

A new, compact, side-pumped laser pump cavity design which uses non-conventional optics for injection of laser-diode light into a laser pump chamber includes a plurality of elongated light concentration channels. In one embodiment, the light concentration channels are compound parabolic concentrators (CPC) which have very small exit apertures so that light will not escape from the pumping chamber and will be multiply reflected through the laser rod. This new design effectively traps the pump radiation inside the pump chamber that encloses the laser rod. It enables more uniform laser pumping and highly effective recycle of pump radiation, leading to significantly improved laser performance. This new design also effectively widens the acceptable radiation wavelength of the diodes, resulting in a more reliable laser performance with lower cost.

Chang, Jim J. (Dublin, CA); Bass, Isaac L. (Castro Valley, CA); Zapata, Luis E. (Livermore, CA)

1999-01-01T23:59:59.000Z

10

Compact and highly efficient laser pump cavity  

SciTech Connect

A new, compact, side-pumped laser pump cavity design which uses non-conventional optics for injection of laser-diode light into a laser pump chamber includes a plurality of elongated light concentration channels. In one embodiment, the light concentration channels are compound parabolic concentrators (CPC) which have very small exit apertures so that light will not escape from the pumping chamber and will be multiply reflected through the laser rod. This new design effectively traps the pump radiation inside the pump chamber that encloses the laser rod. It enables more uniform laser pumping and highly effective recycle of pump radiation, leading to significantly improved laser performance. This new design also effectively widens the acceptable radiation wavelength of the diodes, resulting in a more reliable laser performance with lower cost.

Chang, J.J.; Bass, I.L.; Zapata, L.E.

1999-11-02T23:59:59.000Z

11

Efficient wide-aperture neodymium glass rod amplifiers  

SciTech Connect

Amplifiers based on neodymium phosphate glass rods 60 - 100 mm in diameter are experimentally studied. The amplifiers are pumped by INP-16/250 tubular flash lamps placed in a universal pump cavity with a two-section mirror reflector. A compact high-voltage capacitive energy storage with a preionisation circuit was developed to supply the lamps. (lasers)

Potemkin, A K; Zhurin, K A; Kirsanov, A V; Kopelovich, E A; Kuznetsov, M V; Kuz'min, A A; Flat, F A; Khazanov, Efim A; Shaikin, A A [Institute of Applied Physics, Russian Academy of Sciences, Nizhny Novgorod (Russian Federation)

2011-06-30T23:59:59.000Z

12

Lightning Rod Improvement Studies  

Science Conference Proceedings (OSTI)

Although lightning rods have long been used to limit damage from lightning, there are currently no American standards for the shape and form of these devices. Following tradition, however, sharp-tipped Franklin rods are widely installed despite ...

C. B. Moore; William Rison; James Mathis; Graydon Aulich

2000-05-01T23:59:59.000Z

13

Control rod drive  

DOE Patents (OSTI)

A control rod drive uses gravitational forces to insert one or more control rods upwardly into a reactor core from beneath the reactor core under emergency conditions. The preferred control rod drive includes a vertically movable weight and a mechanism operatively associating the weight with the control rod so that downward movement of the weight is translated into upward movement of the control rod. The preferred control rod drive further includes an electric motor for driving the control rods under normal conditions, an electrically actuated clutch which automatically disengages the motor during a power failure and a decelerator for bringing the control rod to a controlled stop when it is inserted under emergency conditions into a reactor core.

Hawke, Basil C. (Solana Beach, CA)

1986-01-01T23:59:59.000Z

14

Piston rod seal  

SciTech Connect

In a piston rod seal of the type comprising a gland through which the piston rod is passed the piston is provided with a sleeve surrounding the piston rod and extending axially so as to axially partly overlap the gland when the piston is in its bottom dead center position.

Lindskoug, Stefan (Malmo, SE)

1984-01-01T23:59:59.000Z

15

Fuel Rod Cooling in Natural Uranium Reactors  

SciTech Connect

An analysis is presented of the transfer of heat from a cylindrical fuel rod surrounded by a fast flowing coolant in an annular duct, with maximum power output limited by fuel rod temperatures, coolant pressure drop and pumping power requirements. A method is also presented for comparing and evaluating various liquid and gaseous coolants within these limitations. The report also shows and discusses some calculated results obtained for the systems considred in the study of natural U reactors for the production of Pu and useful power (NAA-SR-137).

Trilling, C.A.

1952-01-28T23:59:59.000Z

16

CONTROL ROD DRIVE  

DOE Patents (OSTI)

Accurate and controlled drive for the control rod is from an electric motor. A hydraulic arrangement is provided to balance a piston against which a control rod is urged by the application of fluid pressure. The electric motor drive of the control rod for normal operation is made through the aforementioned piston. In the event scramming is required, the fluid pressure urging the control rod against the piston is relieved and an opposite fluid pressure is applied. The lack of mechanical connection between the electric motor and control rod facilitates the scramming operation.

Chapellier, R.A.; Rogers, I.

1961-06-27T23:59:59.000Z

17

CRUCIFORM CONTROL ROD JOINT  

DOE Patents (OSTI)

An invention is described which relates to nuclear reactor control rod components and more particularly to a joint between cruciform control rod members and cruciform control rod follower members. In one embodiment this invention provides interfitting crossed arms at adjacent ends of a control rod and its follower in abutting relation. This holds the members against relative opposite longitudinal movement while a compression member keys the arms against relative opposite rotation around a common axis. Means are also provided for centering the control rod and its follower on a common axis and for selectively releasing the control rod from its follower for the insertion of a replacement of the control rod and reuse of the follower. (AEC)

Thorp, A.G. II

1962-08-01T23:59:59.000Z

18

CONTROL ROD DRIVE  

DOE Patents (OSTI)

BS>A drive mechanism was invented for the control rod of a nuclear reactor. Power is provided by an electric motor and an outside source of fluid pressure is utilized in conjunction with the fluid pressure within the reactor to balance the loadings on the motor. The force exerted on the drive mechanism in the direction of scramming the rod is derived from the reactor fluid pressure so that failure of the outside pressure source will cause prompt scramming of the rod.

Chapellier, R.A.

1960-05-24T23:59:59.000Z

19

Hydraulic control rod  

DOE Patents (OSTI)

Apparatus for shifting a control rod into and out of a nuclear reactor utilizing as pressure fluid the fluid employed as coolant moderator in the reactor.

Treshow, Michael (Hinsdale, IL)

1976-01-01T23:59:59.000Z

20

FUEL ROD CLUSTERS  

DOE Patents (OSTI)

A cluster of nuclear fuel rods and a tubular casing therefor through which a coolant flows in heat-exchange contact with the fuel rods is described. The fuel rcds are held in the casing by virtue of the compressive force exerted between longitudinal ribs of the fuel rcds and internal ribs of the casing or the internal surfaces thereof.

Schultz, A.B.

1959-08-01T23:59:59.000Z

Note: This page contains sample records for the topic "rod pumps view" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


21

PUMP CONSTRUCTION  

DOE Patents (OSTI)

A pump which utilizes the fluid being pumped through it as its lubricating fluid is described. This is achieved by means of an improved bearing construction in a pump of the enclosed or canned rotor type. At the outlet end of the pump, adjacent to an impeller mechanism, there is a bypass which conveys some of the pumped fluid to a chamber at the inlet end of the pump. After this chamber becomes full, the pumped fluid passes through fixed orifices in the top of the chamber and exerts a thrust on the inlet end of the pump rotor. Lubrication of the rotor shaft is accomplished by passing the pumped fluid through a bypass at the outlet end of the rotor shaft. This bypass conveys Pumped fluid to a cooling means and then to grooves on the surface of the rotor shait, thus lubricating the shaft.

Strickland, G.; Horn, F.L.; White, H.T.

1960-09-27T23:59:59.000Z

22

Fuel rod support grid  

DOE Patents (OSTI)

A grid for the support of nuclear fuel rods arranged in a triangular array. The grid is formed by concentric rings of strap joined by radially arranged web sections.

Downs, Robert E. (Monroeville, PA); Schwallie, Ambrose L. (Greensburg, PA)

1985-01-01T23:59:59.000Z

23

Subsea Pumped Hydro Storage -A Technology Assessment.  

E-Print Network (OSTI)

??A novel technology for energy storage called Subsea Pumped Hydro Storage (SPHS) has been evaluated from a techno-economical point of view. Intermittent renewable energy sources (more)

Falk, Johan

2013-01-01T23:59:59.000Z

24

ELECTROMAGNETIC PUMP  

DOE Patents (OSTI)

This patent reiates to electromagnetic pumps for electricity-conducting fluids and, in particular, describes several modifications for a linear conduction type electromagnetic interaction pump. The invention resides in passing the return conductor for the current traversing the fiuid in the duct back through the gap in the iron circuit of the pump. Both the maximum allowable pressure and the efficiency of a linear conduction electromagnetic pump are increased by incorporation of the present invention.

Pulley, O.O.

1954-08-17T23:59:59.000Z

25

NORMETEX PUMP ALTERNATIVES STUDY  

SciTech Connect

A mainstay pump for tritium systems, the Normetex scroll pump, is currently unavailable because the Normetex company went out of business. This pump was an all-metal scroll pump that served tritium processing facilities very well. Current tritium system operators are evaluating replacement pumps for the Normetex pump and for general used in tritium service. An all-metal equivalent alternative to the Normetex pump has not yet been identified. 1. The ideal replacement tritium pump would be hermetically sealed and contain no polymer components or oils. Polymers and oils degrade over time when they contact ionizing radiation. 2. Halogenated polymers (containing fluorine, chlorine, or both) and oils are commonly found in pumps. These materials have many properties that surpass those of hydrocarbon-based polymers and oils, including thermal stability (higher operating temperature) and better chemical resistance. Unfortunately, they are less resistant to degradation from ionizing radiation than hydrocarbon-based materials (in general). 3. Polymers and oils can form gaseous, condensable (HF, TF), liquid, and solid species when exposed to ionizing radiation. For example, halogenated polymers form HF and HCl, which are extremely corrosive upon reaction with water. If a pump containing polymers or oils must be used in a tritium system, the system must be designed to be able to process the unwanted by-products. Design features to mitigate degradation products include filters and chemical or physical traps (eg. cold traps, oil traps). 4. Polymer components can work in tritium systems, but must be replaced regularly. Polymer components performance should be monitored or be regularly tested, and regular replacement of components should be viewed as an expected normal event. A radioactive waste stream must be established to dispose of used polymer components and oil with an approved disposal plan developed based on the facility location and its regulators. Polymers have varying resistances to ionizing radiation - aromatic polymers such as polyimide Vespel (TM) and the elastomer EPDM (ethylene propylene diene monomer) have been found to be more resistant to degradation in tritium than other polymers. This report presents information to help select replacement pumps for Normetex pumps in tritium systems. Several pumps being considered as Normetex replacement pumps are discussed.

Clark, Elliot A.

2013-04-25T23:59:59.000Z

26

Control rod studies  

SciTech Connect

This study was undertaken to answer questions asked regarding the required rod stroke for control of modified Tory II-C reactors. All problems described were solved with the Angie code and based on Tory-II-C design problems, RZ 501 and RZ 502, representing hot and cold reactors respectively.

Cole, A.

1963-02-28T23:59:59.000Z

27

REACTOR CONTROL ROD OPERATING SYSTEM  

DOE Patents (OSTI)

A nuclear reactor control rod mechanism is designed which mechanically moves the control rods into and out of the core under normal conditions but rapidly forces the control rods into the core by catapultic action in the event of an emergency. (AEC)

Miller, G.

1961-12-12T23:59:59.000Z

28

SAFETY SYSTEM FOR CONTROL ROD  

DOE Patents (OSTI)

A structure for monitoring the structural continuity of a control rod foi a neutron reactor is presented. A electric conductor readily breakable under mechanical stress is fastened along the length of the control rod at a plurality of positions and forms a closed circuit with remote electrical components responsive to an open circuit. A portion of the conductor between the control rod and said components is helically wound to allow free and normally unrestricted movement of the segment of conductor secured to the control rod relative to the remote components. Any break in the circuit is indicative of control rod breakage. (AEC)

Paget, J.A.

1963-05-14T23:59:59.000Z

29

Locked-wrap fuel rod  

DOE Patents (OSTI)

A method for spacing fast reactor fuel rods using a wire wrapper improved by orienting the wire-wrapped fuel rods in a unique manner which introduces desirable performance characteristics not attainable by previous wire-wrapped designs. Use of this method in a liquid metal fast breeder reactor results in: (a) improved mechanical performance, (b) improved rod-to-rod contact, (c) reduced steel volume, and (d) improved thermal-hydraulic performance. The method produces a "locked wrap" design which tends to lock the rods together at each of the wire cluster locations.

Kaplan, Samuel (Los Gatos, CA); Chertock, Alan J. (San Francisco, CA); Punches, James R. (San Jose, CA)

1977-01-01T23:59:59.000Z

30

LED end-pumped Nd:YAG lasers  

SciTech Connect

Experimental results are reported on the room-temperature operation of Nd:YAG lasers end pumped with an LED. The radiation from a 10% efficient 0.46 mm-dia domed LED was coupled to the end of a 0.46-mm-diam x 5.0-mm-long laser rod with a large hemispherical reflector. At 20/sup 0/C, a multimode laser power of 0.25 mW was obtained at an LED current of 250 mA. By measuring the variation of threshold pump power with rod temperature and the laser power versus pump power just above threshold, both the laser cavity loss and the output mirror transmission were determined. A round-trip cavity loss as low as 0.022% was measured. A calculation of the fractional pump power absorbed in the rod for the LED spectrum gave 56% for a 5-mm-long rod while measurements showed that 30 to 35% of the LED power was being absorbed indicating an LED-to-laser rod coupling efficiency of 54 to 63% for this arrangement. With such efficient absorption of pump power and low cavity loss, end-pumped Nd:YAG lasers with high slope efficiencies above threshold are possible.

Ostermayer, F.W. Jr.

1977-01-01T23:59:59.000Z

31

Reactor control rod timing system  

DOE Patents (OSTI)

A fluid driven jet-edge whistle timing system for control rods of a nuclear reactor for producing real-time detection of the timing of each control rod in its scram operation. An important parameter in reactor safety, particularly for liquid metal fast breeder reactors (LMFBR), is the time deviation between the time the control rod is released and the time the rod actually reaches the down position. The whistle has a nearly pure tone signal with center frequency (above 100 kHz) far above the frequency band in which the energy of the background noise is concentrated. Each control rod can be fitted with a whistle with a different frequency so that there is no ambiguity in differentiating the signal from each control rod.

Wu, Peter T. K. (Clifton Park, NY)

1982-01-01T23:59:59.000Z

32

Fiber optic laser rod  

DOE Patents (OSTI)

A laser rod is formed from a plurality of optical fibers, each forming an individual laser. Synchronization of the individual fiber lasers is obtained by evanescent wave coupling between adjacent optical fiber cores. The fiber cores are dye-doped and spaced at a distance appropriate for evanescent wave coupling at the wavelength of the selected dye. An interstitial material having an index of refraction lower than that of the fiber core provides the optical isolation for effective lasing action while maintaining the cores at the appropriate coupling distance. 2 figs.

Erickson, G.F.

1988-04-13T23:59:59.000Z

33

Automatic safety rod for reactors  

DOE Patents (OSTI)

An automatic safety rod for a nuclear reactor containing neutron absorbing material and designed to be inserted into a reactor core after a loss-of-core flow. Actuation is based upon either a sudden decrease in core pressure drop or the pressure drop decreases below a predetermined minimum value. The automatic control rod includes a pressure regulating device whereby a controlled decrease in operating pressure due to reduced coolant flow does not cause the rod to drop into the core.

Germer, John H. (San Jose, CA)

1988-01-01T23:59:59.000Z

34

Definition: Heat pump | Open Energy Information  

Open Energy Info (EERE)

pump pump Jump to: navigation, search Dictionary.png Heat pump Heating and/or cooling equipment that, during the heating season, draws heat into a building from outside and, during the cooling season, ejects heat from the building to the outside[1] View on Wikipedia Wikipedia Definition A heat pump is a device that transfers heat energy from a heat source to a heat sink against a temperature gradient. Heat pumps are designed to move thermal energy opposite the direction of spontaneous heat flow. A heat pump uses some amount of external high-grade energy to accomplish the desired transfer of thermal energy from heat source to heat sink. While compressor-driven air conditioners and freezers are familiar examples of heat pumps, the term "heat pump" is more general and applies to

35

Plutonium Consolidation Amended ROD  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

6450-01-P] 6450-01-P] DEPARTMENT OF ENERGY Amended Record of Decision: Storage of Surplus Plutonium Materials at the Savannah River Site AGENCY: Department of Energy ACTION: Amended Record of Decision SUMMARY: The U.S. Department of Energy (DOE) is amending the Record of Decision (ROD) for the Storage and Disposition of Weapons-Usable Fissile Materials Programmatic Environmental Impact Statement (DOE/EIS-0229, 1996; Storage and Disposition PEIS). Specifically, DOE has decided to take the actions necessary to transfer approximately 2,511 additional 3013-compliant packages 1 containing surplus non-pit weapons-usable plutonium metals and oxides to the Savannah River Site (SRS), near Aiken, South Carolina. Approximately 2,300 containers will be transferred from the Hanford Site (Hanford) near

36

Fuel rod reprocessing plant  

Science Conference Proceedings (OSTI)

A plant for the reprocessing of fuel rods for a nuclear reactor comprises a plurality of rectangular compartments desirably arranged on a rectangular grid. Signal lines, power lines, pipes, conduits for instrumentation, and other communication lines leave a compartment just below its top edges. A vehicle access zone permits overhead and/or mobile cranes to remove covers from compartments. The number of compartments is at least 25% greater than the number of compartments used in the initial design and operation of the plant. Vacant compartments are available in which replacement apparatus can be constructed. At the time of the replacement of a unit, the piping and conduits are altered to utilize the substitute equipment in the formerly vacant compartment, and it is put on stream prior to dismantling old equipment from the previous compartment. Thus the downtime for the reprocessing plant for such a changeover is less than in a traditional reprocessing plant.

Szulinski, M.J.

1981-04-14T23:59:59.000Z

37

NEUTRONIC REACTOR CONTROL ROD DRIVE APPARATUS  

DOE Patents (OSTI)

ABS>A suspension mechanism between a vertically movable nuclear reactor control rod and a rod extension, which also provides information for the operator or an automatic control signal, is described. A spring connects the rod extension to a drive shift. The extension of the spring indicates whether (1) the rod is at rest on the reactor, (2) the rod and extension are suspended, or (3) the extension alone is suspended, the spring controlling a 3-position electrical switch.

Oakes, L.C.; Walker, C.S.

1959-12-15T23:59:59.000Z

38

Pump8  

NLE Websites -- All DOE Office Websites (Extended Search)

Preferred Upstream Management Practices Preferred Upstream Management Practices Rewriting the Meaning of "Standard Business Practices" PUMP U.S. Department of Energy * National Energy Technology Laboratory TECHNOLOGY TRANSFER TO THE USER * Regional Production Obstacles: Identification of specific regional obstacles to oil production, and the preferred management practices to overcome the problems. Demonstrate drilling, field opera- tions technology, reservoir man- agement approaches, computer tools, or better ways to comply with environmental regulations in a case study. * Research Groups or Councils: Use established groups or councils in a region to formulate the "best practices" appropriate to that region. The goal is to develop a self- sustaining system to identify pro- duction constraints and solve them

39

EIS-0427-ROD-2012.pdf  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

29 Federal Register 29 Federal Register / Vol. 77, No. 176 / Tuesday, September 11, 2012 / Notices supplied for the benefit of the customer for pumping during the specified month. L p = Energy loss factor for transmission on energy purchased or supplied for the benefit of the customer for pumping (Expected to be .03 or three percent.) = Kilowatt-hours of energy in storage as of the end of the month immediately preceding the specified month. = Weighted average cost of energy for pumping for the month immediately preceding the specified month. F wav = E G ÷ E T (Weighted average energy conversion factor is equal to the energy generated from pumping divided by the total energy for pumping) E G = Energy generated from pumping. L d = Weighted average energy loss factor on energy delivered by the facilitator to the

40

Device and method to relieve cordelle action in a chain driven pump  

DOE Patents (OSTI)

A cordelle action relief apparatus or device for use in sucker rod pumps in a petroleum or water well. The device is incorporated in a chain driven pump to prevent the chain from forming a bow or archlike configuration as the chain rolls off of the sprocket and down into the well. When the chain is allowed to form this bow or arch it could damage the well and well casing. The device includes a first rod on the side of the chain and a second rod on the second side of the chain that will allow the rollers of the chain to roll on the rod and further prevent the chain from bowing or arching and will further allow the rollers on the chain to roll on the rods which will further prevent damage to the well casing, the well, and the chain.

Dysarz, Edward D. (11423 Triola La., Houston, TX 77072)

1994-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "rod pumps view" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


41

Advanced gray rod control assembly  

DOE Patents (OSTI)

An advanced gray rod control assembly (GRCA) for a nuclear reactor. The GRCA provides controlled insertion of gray rod assemblies into the reactor, thereby controlling the rate of power produced by the reactor and providing reactivity control at full power. Each gray rod assembly includes an elongated tubular member, a primary neutron-absorber disposed within the tubular member said neutron-absorber comprising an absorber material, preferably tungsten, having a 2200 m/s neutron absorption microscopic capture cross-section of from 10 to 30 barns. An internal support tube can be positioned between the primary absorber and the tubular member as a secondary absorber to enhance neutron absorption, absorber depletion, assembly weight, and assembly heat transfer characteristics.

Drudy, Keith J; Carlson, William R; Conner, Michael E; Goldenfield, Mark; Hone, Michael J; Long, Jr., Carroll J; Parkinson, Jerod; Pomirleanu, Radu O

2013-09-17T23:59:59.000Z

42

heat pump | OpenEI  

Open Energy Info (EERE)

heat pump heat pump Dataset Summary Description View 2010 energy efficiency data from AeroSys Inc, Coaire, Cold Point, First Operations, LG Electronics, Nordyne, and Quietside manufacturers. Data includes cooling capacity, cooling performance, heating capacity, and heating performance. Spreadsheet was created by combining the tables in pdf files that are included in the zip file. Source Energy Applicance Data - United States Federal Trade Commission, www.ftc.gov Date Released Unknown Date Updated Unknown Keywords air conditioner central air conditioner efficiency efficient energy heat pump Data application/vnd.ms-excel icon 2010_CentralAC_All.xls (xls, 82.4 KiB) application/zip icon 2010CentralAirConditioner.zip (zip, 398.2 KiB) Quality Metrics Level of Review Some Review

43

Energy Basics: Absorption Heat Pumps  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Systems Air-Source Heat Pumps Ductless Mini-Split Heat Pumps Absorption Heat Pumps Geothermal Heat Pumps Supporting Equipment for Heating & Cooling Systems Water Heating...

44

Energy Basics: Heat Pump Systems  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Systems Air-Source Heat Pumps Ductless Mini-Split Heat Pumps Absorption Heat Pumps Geothermal Heat Pumps Supporting Equipment for Heating & Cooling Systems Water Heating Heat...

45

Energy Basics: Geothermal Heat Pumps  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Systems Air-Source Heat Pumps Ductless Mini-Split Heat Pumps Absorption Heat Pumps Geothermal Heat Pumps Supporting Equipment for Heating & Cooling Systems Water Heating...

46

Definition: Ground Source Heat Pumps | Open Energy Information  

Open Energy Info (EERE)

Pumps Pumps Jump to: navigation, search Dictionary.png Ground Source Heat Pumps A Ground Source Heat Pump is a central building heating and/or cooling system that takes advantage of the relatively constant year-round ground temperature to pump heat to or from the ground.[1][2][3] View on Wikipedia Wikipedia Definition A geothermal heat pump or ground source heat pump (GSHP) is a central heating and/or cooling system that pumps heat to or from the ground. It uses the earth as a heat source (in the winter) or a heat sink (in the summer). This design takes advantage of the moderate temperatures in the ground to boost efficiency and reduce the operational costs of heating and cooling systems, and may be combined with solar heating to form a geosolar system with even greater efficiency. Ground source heat pumps

47

LMFBR with booster pump in pumping loop  

DOE Patents (OSTI)

A loop coolant circulation system is described for a liquid metal fast breeder reactor (LMFBR) utilizing a low head, high specific speed booster pump in the hot leg of the coolant loop with the main pump located in the cold leg of the loop, thereby providing the advantages of operating the main pump in the hot leg with the reliability of cold leg pump operation.

Rubinstein, H.J.

1975-10-14T23:59:59.000Z

48

Hybrid fiber-rod laser  

DOE Patents (OSTI)

Single, or near single transverse mode waveguide definition is produced using a single homogeneous medium to transport both the pump excitation light and generated laser light. By properly configuring the pump deposition and resulting thermal power generation in the waveguide device, a thermal focusing power is established that supports perturbation-stable guided wave propagation of an appropriately configured single or near single transverse mode laser beam and/or laser pulse.

Beach, Raymond J.; Dawson, Jay W.; Messerly, Michael J.; Barty, Christopher P. J.

2012-12-18T23:59:59.000Z

49

Match Pumps to System Requirements  

SciTech Connect

BestPractices Program tip sheet discussing pumping system efficiency matching pumps to system requirements

2005-10-01T23:59:59.000Z

50

Fuel rod assembly to manifold attachment  

DOE Patents (OSTI)

A fuel element is formed with a plurality of fuel rod assemblies detachably connected to an overhead support with each of the fuel rod assemblies having a gas tight seal with the support to allow internal fission gaseous products to flow without leakage from the fuel rod assemblies into a vent manifold passageway system on the support. The upper ends of the fuel rod assemblies are located at vertically extending openings in the support and upper threaded members are threaded to the fuel rod assemblies to connect the latter to the support. The preferred threaded members are cap nuts having a dome wall encircling an upper threaded end on the fuel rod assembly and having an upper sealing surface for sealing contact with the support. Another and lower seal is achieved by abutting a sealing surface on each fuel rod assembly with the support. A deformable portion on the cap nut locks the latter against inadvertent turning off the fuel rod assembly. Orienting means on the fuel rod and support primarily locates the fuel rods azimuthally for reception of a deforming tool for the cap nut. A cross port in the fuel rod end plug discharges into a sealed annulus within the support, which serves as a circumferential chamber, connecting the manifold gas passageways in the support.

Donck, Harry A. (San Diego, CA); Veca, Anthony R. (San Diego, CA); Snyder, Jr., Harold J. (San Diego, CA)

1980-01-01T23:59:59.000Z

51

Alternative backing up pump for turbomolecular pumps  

DOE Patents (OSTI)

As an alternative to the use of a mechanical backing pump in the application of wide range turbomolecular pumps in ultra-high and extra high vacuum applications, palladium oxide is used to convert hydrogen present in the evacuation stream and related volumes to water with the water then being cryo-pumped to a low pressure of below about 1.e.sup.-3 Torr at 150.degree. K. Cryo-pumping is achieved using a low cost Kleemenco cycle cryocooler, a somewhat more expensive thermoelectric cooler, a Venturi cooler or a similar device to achieve the required minimization of hydrogen partial pressure.

Myneni, Ganapati Rao (Yorktown, VA)

2003-04-22T23:59:59.000Z

52

High efficiency 2 micrometer laser utilizing wing-pumped Tm{sup 3+} and a laser diode array end-pumping architecture  

DOE Patents (OSTI)

Wing pumping a Tm{sup 3+} doped, end pumped solid state laser generates 2 {micro}m laser radiation at high average powers with high efficiency. Using laser diode arrays to end-pump the laser rod or slab in the wing of the Tm{sup 3+} absorption band near 785 nm results in 2-for-1 quantum efficiency in Tm{sup 3+} because high Tm{sup 3+} concentrations can be used. Wing pumping allows the thermal power generated in the rod or slab to be distributed over a large enough volume to make thermal management practical in the laser gain medium even at high average power operation. The approach is applicable to CW, Q-switched, and rep-pulsed free-laser operation. 7 figs.

Beach, R.J.

1997-11-18T23:59:59.000Z

53

High efficiency 2 micrometer laser utilizing wing-pumped Tm.sup.3+ and a laser diode array end-pumping architecture  

DOE Patents (OSTI)

Wing pumping a Tm.sup.3+ doped, end pumped solid state laser generates 2 .mu.m laser radiation at high average powers with high efficiency. Using laser diode arrays to end-pump the laser rod or slab in the wing of the Tm.sup.3+ absorption band near 785 nm results in 2-for-1 quantum efficiency in Tm.sup.3+ because high Tm.sup.3+ concentrations can be used. Wing pumping allows the thermal power generated in the rod or slab to be distributed over a large enough volume to make thermal management practical in the laser gain medium even at high average power operation. The approach is applicable to CW, Q-switched, and rep-pulsed free-laser operation.

Beach, Raymond J. (Livermore, CA)

1997-01-01T23:59:59.000Z

54

Fuel rod retention device for a nuclear reactor  

DOE Patents (OSTI)

A device is described for supporting a nuclear fuel rod in a fuel rod assembly which allows the rod to be removed without disturbing other rods in the assembly. A fuel rod cap connects the rod to a bolt which is supported in the assembly end fitting by means of a locking assembly. The device is designed so that the bolt is held securely during normal reactor operation yet may be easily disengaged and the fuel rod removed when desired.

Hylton, Charles L. (Madison Heights, VA)

1984-01-01T23:59:59.000Z

55

Reactor control rod timing system. [LMFBR  

DOE Patents (OSTI)

A fluid driven jet-edge whistle timing system is described for control rods of a nuclear reactor for producing real-time detection of the timing of each control rod in its scram operation. An important parameter in reactor safety, particularly for liquid metal fast breeder reactors (LMFBR), is the time deviation between the time the control rod is released and the time the rod actually reaches the down position. The whistle has a nearly pure tone signal with center frequency (above 100 kHz) far above the frequency band in which the energy of the background noise is concentrated. Each control rod can be fitted with a whistle with a different frequency so that there is no ambiguity in differentiating the signal from each control rod.

Wu, P.T.K.

1980-03-18T23:59:59.000Z

56

Advanced Manufacturing Office: Pump Systems  

NLE Websites -- All DOE Office Websites (Extended Search)

Pump Systems on Twitter Bookmark Advanced Manufacturing Office: Pump Systems on Google Bookmark Advanced Manufacturing Office: Pump Systems on Delicious Rank Advanced...

57

Pumping Fluid Condensation in Oil Diffusion Pumps  

Science Conference Proceedings (OSTI)

Condensation conditions of the motive fluid in an oil diffusion pump are considered with particular attention to the backstreaming problem. The backstreaming rate is correlated with the temperature of the cold caps surrounding the pump nozzle and it is demonstrated that an upper temperature limit exists near 200?F where such devices cease to function effectively. The effect of oleophobic surfaces on cold caps and baffles is discussed. Conditions existing at the inlet of diffusion pumps and in baffles do not warrant attempts to introduce dropwise condensation. The condensation coefficient of pumping vapor at the temperature of the water cooled wall and with the flow rates used at the top nozzle appears to be very close to unity. The usefulness of creep barriers with modern pumping fluids and trap designs is judged to be questionable.

M. H. Hablanian

1972-01-01T23:59:59.000Z

58

Automatic safety rod for reactors. [LMFBR  

DOE Patents (OSTI)

An automatic safety rod for a nuclear reactor containing neutron absorbing material and designed to be inserted into a reactor core after a loss-of-flow. Actuation is based upon either a sudden decrease in core pressure drop or the pressure drop decreases below a predetermined minimum value. The automatic control rod includes a pressure regulating device whereby a controlled decrease in operating pressure due to reduced coolant flow does not cause the rod to drop into the core.

Germer, J.H.

1982-03-23T23:59:59.000Z

59

Temperature actuated automatic safety rod release  

DOE Patents (OSTI)

A temperature-actuated apparatus is disclosed for releasably supporting a safety rod in a nuclear reactor, comprising a safety rod upper adapter having a retention means, a drive shaft which houses the upper adapter, and a bimetallic means supported within the drive shaft and having at least one ledge which engages a retention means of the safety rod upper adapter. A pre-determined increase in temperature causes the bimetallic means to deform so that the ledge disengages from the retention means, whereby the bimetallic means releases the safety rod into the core of the reactor.

Hutter, Ernest (Wilmette, IL); Pardini, John A. (Brookfield, IL); Walker, David E. (Naperville, IL)

1987-01-01T23:59:59.000Z

60

Temperature actuated automatic safety rod release  

DOE Patents (OSTI)

A temperature-actuated apparatus is disclosed for releasably supporting a safety rod in a nuclear reactor, comprising a safety rod upper adapter having a retention means, a drive shaft which houses the upper adapter, and a bimetallic means supported within the drive shaft and having at least one ledge which engages a retention means of the safety rod upper adapter. A pre-determined increase in temperature causes the bimetallic means to deform so that the ledge disengages from the retention means, whereby the bimetallic means releases the safety rod into the core of the reactor.

Hutter, E.; Pardini, J.A.; Walker, D.E.

1984-03-13T23:59:59.000Z

Note: This page contains sample records for the topic "rod pumps view" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


61

Control rod studies (Tory II-C)  

SciTech Connect

This memorandum outlines the area of interest in connection with the SSBN launch application, on modification of the Tory II-C control rod system; and suggest a plan of development of information. Because of the very limited space for overall missile length, little room is available for control rod motion upstream from the core. Shortening the rod stroke, and the total length occupied by control rod mechanism., becomes very desirable. Changes in the actuator and linkage mechanism will clearly help, and should be investigated. However, this is concerned only with neutronic aspects.

Hadley, J.W.

1962-11-15T23:59:59.000Z

62

Marshfield Utilities - Heat Pump Rebate Program | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Marshfield Utilities - Heat Pump Rebate Program Marshfield Utilities - Heat Pump Rebate Program Marshfield Utilities - Heat Pump Rebate Program < Back Eligibility Installer/Contractor Residential Savings Category Heating & Cooling Commercial Heating & Cooling Heat Pumps Program Info State Wisconsin Program Type Utility Rebate Program Rebate Amount Ground Source Heat Pump: $550 Provider Marshfield Utilities Marshfield Utilities offers cash-back rewards for Ground Source Heat Pumps, as well as Focus on Energy program incentives. A rebate of $550 will be given to customers who purchase and install qualifying Ground Source Heat Pumps. Systems must meet the equipment standards of the program in order to receive a rebate. Contact Marshfield Utilities for more information and program requirements. Customers should view the Focus on Energy program web

63

MHK Technologies/Wave Water Pump WWP | Open Energy Information  

Open Energy Info (EERE)

Pump WWP Pump WWP < MHK Technologies Jump to: navigation, search << Return to the MHK database homepage Wave Water Pump WWP.gif Technology Profile Primary Organization Renewable Energy Wave Pumps Technology Resource Click here Wave Technology Description The Water Wave Pump WWP is a point absorber that uses a submerged water pump to lift a small quantity of water to a higher head collect it in a piping network and feed it to a hydro turbine to produce power Mooring Configuration Gravity base installed at the sea bed Optimum Marine/Riverline Conditions The REWP can pump water to a hgih head fro waves ranging between 1 2 meters to waves in excess of 4 meters high It self adjusts to varyilng sea levels and wave hights It resists storms safe to navigation as red floats are clearly seen during the day and red flashing lights during the night It does not disturb marine life or shore line scenic view

64

Rotary magnetic heat pump  

DOE Patents (OSTI)

A rotary magnetic heat pump constructed without flow seals or segmented rotor accomplishes recuperation and regeneration by using split flow paths. Heat exchange fluid pumped through heat exchangers and returned to the heat pump splits into two flow components: one flowing counter to the rotor rotation and one flowing with the rotation.

Kirol, Lance D. (Shelly, ID)

1988-01-01T23:59:59.000Z

65

Rotary magnetic heat pump  

DOE Patents (OSTI)

A rotary magnetic heat pump constructed without flow seals or segmented rotor accomplishes recuperation and regeneration by using split flow paths. Heat exchange fluid pumped through heat exchangers and returned to the heat pump splits into two flow components: one flowing counter to the rotor rotation and one flowing with the rotation. 5 figs.

Kirol, L.D.

1987-02-11T23:59:59.000Z

66

Liquid metal electric pump  

DOE Patents (OSTI)

An electrical pump for pumping liquid metals to high pressures in high temperature environments without the use of magnets or moving mechanical parts. The pump employs a non-porous solid electrolyte membrane, typically ceramic, specific to the liquid metal to be pumped. A DC voltage is applied across the thickness of the membrane causing ions to form and enter the membrane on the electrically positive surface, with the ions being neutralized on the opposite surface. This action provides pumping of the liquid metal from one side of the non-porous solid electrolyte membrane to the other. 3 figs.

Abbin, J.P.; Andraka, C.E.; Lukens, L.L.; Moreno, J.B.

1992-01-14T23:59:59.000Z

67

EIS-0241-ROD-1996.pdf  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Bonneville Power Administration Bonneville Power Administration P.O. Box 3621 Portland, Oregon 97208-3621 Oct 1 7 1996 HOOD RIVER FISHERIES PROJECT RECORD OF DECISION ACTION: Bonneville Power Administration (BPA) has prepared the enclosed Record of Decision (ROD) for the Hood River Fisheries Project. The Environmental Impact Statement (EIS) for this project was previously provided. BACKGROUND: BPA proposes to protect and improve anadromous salmonid populations in the Hood River Basin. These actions are proposed in an attempt to mitigate the losses of fish and wildlife associated with the construction and operation of Federal hydro-power facilities in the Columbia River Basin. The proposed project would be located in Hood River, Hood River County, Oregon. BPA prepared an EIS in accordance with the requirements of the National

68

Microsoft Word - ROD_031610.doc  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Chief Joseph Hatchery Program Chief Joseph Hatchery Program Record of Decision March 2010 Summary The Bonneville Power Administration (BPA) has decided to fund the Proposed Action of the Chief Joseph Hatchery Program (hatchery program) as described in the Chief Joseph Hatchery Program Environmental Impact Statement (DOE/EIS-0384, November 2009). The Proposed Action, which was recommended for BPA funding by the Northwest Power and Conservation Council (Council), is in the Columbia Cascade ecological province of Washington State. BPA prepared the Chief Joseph Hatchery Program EIS and this Record of Decision (ROD) pursuant to the process specified in the National Environmental Policy Act (NEPA, P.L. 91-190), regulations of the Council on Environmental Quality (40 CFR Part 1505), and Implementing

69

Electrokinetic pumps and actuators  

DOE Green Energy (OSTI)

Flow and ionic transport in porous media are central to electrokinetic pumping as well as to a host of other microfluidic devices. Electrokinetic pumping provides the ability to create high pressures (to over 10,000 psi) and high flow rates (over 1 mL/min) with a device having no moving parts and all liquid seals. The electrokinetic pump (EKP) is ideally suited for applications ranging from a high pressure integrated pump for chip-scale HPLC to a high flow rate integrated pump for forced liquid convection cooling of high-power electronics. Relations for flow rate and current fluxes in porous media are derived that provide a basis for analysis of complex microfluidic systems as well as for optimization of electrokinetic pumps.

Phillip M. Paul

2000-03-01T23:59:59.000Z

70

NREL: Learning - Pumped Hydropower  

NLE Websites -- All DOE Office Websites (Extended Search)

Pumped Hydropower Pumped Hydropower Pumped hydro facilities use off-peak electricity to pump water from a lower reservoir into one at a higher elevation. When the water stored in the upper reservoir is released, it is passed through hydraulic turbines to generate electricity. The off-peak electrical energy used to pump the water up hill can be stored indefinitely as gravitational energy in the upper reservoir. Thus, two reservoirs in combination can be used to store electrical energy for a long period of time, and in large quantities. Utilities generally prefer to operate large coal and nuclear power stations at full power all the time (referred to as "baseload generation"), so in the middle of the night, these plants often produce more power than is needed. Pumped hydro energy storage can be used to smooth out the demand

71

DEVICE FOR CONTROLLING INSERTION OF ROD  

DOE Patents (OSTI)

A device for rapidly inserting a safety rod into a nuclear reactor upon a given signal or in the event of a power failure in order to prevent the possibility of extensive damage caused by a power excursion is described. A piston is slidably mounted within a vertical cylinder with provision for an electromagnetic latch at the top of the cylinder. This assembly, with a safety rod attached to the piston, is mounted over an access port to the core region of the reactor. The piston is normally latched at the top of the cylinder with the safety rod clear of the core area, however, when the latch is released, the piston and rod drop by their own weight to insert the rod. Vents along the side of the cylinder permit the escape of the air entrapped under the piston over the greater part of the distance, however, at the end of the fall the entrapped air is compressed thereby bringing the safety rod gently to rest, thus providing for a rapid automatic insertion of the rod with a minimum of structural shock.

Beaty, B.J.

1958-10-14T23:59:59.000Z

72

Detection of pump degradation  

SciTech Connect

This Phase II Nuclear Plant Aging Research study examines the methods of detecting pump degradation that are currently employed in domestic and overseas nuclear facilities. This report evaluates the criteria mandated by required pump testing at U.S. nuclear power plants and compares them to those features characteristic of state-of-the-art diagnostic programs and practices currently implemented by other major industries. Since the working condition of the pump driver is crucial to pump operability, a brief review of new applications of motor diagnostics is provided that highlights recent developments in this technology. The routine collection and analysis of spectral data is superior to all other technologies in its ability to accurately detect numerous types and causes of pump degradation. Existing ASME Code testing criteria do not require the evaluation of pump vibration spectra but instead overall vibration amplitude. The mechanical information discernible from vibration amplitude analysis is limited, and several cases of pump failure were not detected in their early stages by vibration monitoring. Since spectral analysis can provide a wealth of pertinent information concerning the mechanical condition of rotating machinery, its incorporation into ASME testing criteria could merit a relaxation in the monthly-to-quarterly testing schedules that seek to verify and assure pump operability. Pump drivers are not included in the current battery of testing. Operational problems thought to be caused by pump degradation were found to be the result of motor degradation. Recent advances in nonintrusive monitoring techniques have made motor diagnostics a viable technology for assessing motor operability. Motor current/power analysis can detect rotor bar degradation and ascertain ranges of hydraulically unstable operation for a particular pump and motor set. The concept of using motor current or power fluctuations as an indicator of pump hydraulic load stability is presented.

Greene, R.H.; Casada, D.A.; Ayers, C.W. [and others

1995-08-01T23:59:59.000Z

73

Minimize pump downtime  

Science Conference Proceedings (OSTI)

In refineries and petrochemical plants, centrifugal pumps usually lead the list of equipment that is most susceptible to failure. Using guidelines, maintenance mechanics can improve troubleshooting methods when investigating pump bedplates, underlying concrete foundations and grouting problems. Too often, mechanics may improperly diagnose a misalignment--caused by grouting problems--as an unbalance or a bearing-wearing problem when troubleshooting pump failure. Result: bearing, shaft and seal failures occur from a flawed maintenance procedure. Identifying mounting-surface problems can improve pump performance and decrease unit downtime.

Myers, R.D. [ITW Escoweld Systems, Kingwood, TX (United States)

1995-06-01T23:59:59.000Z

74

Well-pump alignment system  

DOE Patents (OSTI)

An improved well-pump for geothermal wells, an alignment system for a well-pump, and to a method for aligning a rotor and stator within a well-pump, wherein the well-pump has a whistle assembly formed at a bottom portion thereof, such that variations in the frequency of the whistle, indicating misalignment, may be monitored during pumping.

Drumheller, Douglas S. (Cedar Crest, NM)

1998-01-01T23:59:59.000Z

75

Control rod for a nuclear reactor  

DOE Patents (OSTI)

A control rod assembly for a nuclear reactor is disclosed having a remotely disengageable coupling between the control rod and the control rod drive shaft. The coupling is actuated by first lowering then raising the drive shaft. The described motion causes axial repositioning of a pin in a grooved rotatable cylinder, each being attached to different parts of the drive shaft which are axially movable relative to each other. In one embodiment, the relative axial motion of the parts of the drive shaft is used either to couple or to uncouple the connection by forcing resilient members attached to the drive shaft into or out of shouldered engagement, respectively, with an indentation formed in the control rod.

Roman, Walter G. (Pittsburgh, PA); Sutton, Jr., Harry G. (Pittsburgh, PA)

1979-01-01T23:59:59.000Z

76

Double-clad nuclear fuel safety rod  

DOE Patents (OSTI)

A device for shutting down a nuclear reactor during an undercooling or overpower event, whether or not the reactor's scram system operates properly. This is accomplished by double-clad fuel safety rods positioned at various locations throughout the reactor core, wherein melting of a secondary internal cladding of the rod allows the fuel column therein to shift from the reactor core to place the reactor in a subcritical condition.

McCarthy, William H. (Los Altos, CA); Atcheson, Donald B. (Cupertino, CA); Vaidyanathan, Swaminathan (San Jose, CA)

1984-01-01T23:59:59.000Z

77

Subcooled Boiling Data from Rod Bundles  

Science Conference Proceedings (OSTI)

Currently, steaming rate predictions are being made by the industry in thermal hydraulic (TH) codes to predict crud thickness and perform axial offset anomaly (AOA) risk assessments for pressurized water reactors (PWRs). These TH codes use single- and two-phase heat transfer correlations that have not been validated with rod bundle data under prototypical conditions. There is a need to verify that these heat transfer correlations also can predict steaming rates that are applicable for rod bundle geometri...

2002-09-19T23:59:59.000Z

78

NEUTRONIC REACTOR FUEL PUMP  

DOE Patents (OSTI)

A reactor fuel pump is described which offers long life, low susceptibility to radiation damage, and gaseous fission product removal. An inert-gas lubricated bearing supports a journal on one end of the drive shsft. The other end has an impeller and expansion chamber which effect pumping and gas- liquid separation. (T.R.H.)

Cobb, W.G.

1959-06-01T23:59:59.000Z

79

Detection of pump degradation  

Science Conference Proceedings (OSTI)

There are a variety of stressors that can affect the operation of centrifugal pumps. Although these general stressors are active in essentially all centrifugal pumps, the stressor level and the extent of wear and degradation can vary greatly. Parameters that affect the extent of stressor activity are manifold. In order to assure the long-term operational readiness of a pump, it is important to both understand the nature and magnitude of the specific degradation mechanisms and to monitor the performance of the pump. The most commonly applied method of monitoring the condition of not only pumps, but rotating machinery in general, is vibration analysis. Periodic or continuous spectral vibration analysis is a cornerstone of most pump monitoring programs. In the nuclear industry, non-spectral vibration monitoring of safety-related pumps is performed in accordance with the ASME code. Although vibration analysis has dominated the condition monitoring field for many years, there are other measures that have been historically used to help understand pump condition: advances in historically applied technologies and developing technologies offer improved monitoring capabilities. The capabilities of several technologies (including vibration analysis, dynamic pressure analysis, and motor power analysis) to detect the presence and magnitude of both stressors and resultant degradation are discussed.

Casada, D.

1994-12-31T23:59:59.000Z

80

Energy Basics: Air-Source Heat Pumps  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Systems Air-Source Heat Pumps Ductless Mini-Split Heat Pumps Absorption Heat Pumps Geothermal Heat Pumps Supporting Equipment for Heating & Cooling Systems Water Heating...

Note: This page contains sample records for the topic "rod pumps view" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


81

Granby Pumping Plant  

NLE Websites -- All DOE Office Websites (Extended Search)

Granby Pumping Plant Granby Pumping Plant Skip Navigation Links Transmission Functions Infrastructure projects Interconnection OASIS OATT Granby Pumping Plant-Windy Gap Transmission Line Rebuild Project Western owns and operates a 12-mile, 69-kV electric transmission line in Grand County, Colo., that originates at Windy Gap Substation and terminates at Granby Pumping Plant Switchyard. The proposed project would rebuild the single circuit line as a double circuit transmission line and add a second power transformer. One circuit would replace the existing 69-kV line; the other circuit would be a new 138-kV line. Granby Pumping Plant Switchyard would be expanded to accommodate the second line and power transformer. Windy Gap Substation would be modified to accommodate the second line.

82

International symposium on fuel rod simulators: development and application  

SciTech Connect

Separate abstracts are included for each of the papers presented concerning fuel rod simulator operation and performance; simulator design and evaluation; clad heated fuel rod simulators and fuel rod simulators for cladding investigations; fuel rod simulator components and inspection; and simulator analytical modeling. Ten papers have previously been input to the Energy Data Base.

McCulloch, R.W. (comp.)

1981-05-01T23:59:59.000Z

83

Numerical aspects in the dynamic simulation of geometrically exact rods  

Science Conference Proceedings (OSTI)

Classical geometrically exact Kirchhoff and Cosserat models are used to study the nonlinear deformation of rods. Extension, bending and torsion of the rod may be represented by the Kirchhoff model. The Cosserat model additionally takes into account shearing ... Keywords: Deformable bodies, Geometrically exact rods, Kirchhoff and Cosserat rods, Method of lines, Multibody dynamics, Partial differential algebraic equations, Time integration

Holger Lang; Martin Arnold

2012-10-01T23:59:59.000Z

84

Nuclear reactor remote disconnect control rod coupling indicator  

DOE Patents (OSTI)

A coupling indicator for use with nuclear reactor control rod assemblies which have remotely disengageable couplings between the control rod and the control rod drive shaft. The coupling indicator indicates whether the control rod and the control rod drive shaft are engaged or disengaged. A resistive network, utilizing magnetic reed switches, senses the position of the control rod drive mechanism lead screw and the control rod position indicating tube, and the relative position of these two elements with respect to each other is compared to determine whether the coupling is engaged or disengaged.

Vuckovich, Michael (McKeesport, PA)

1977-01-01T23:59:59.000Z

85

Energy Basics: Heat Pump Systems  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

of air-source heat pumps. Absorption Heat Pump Uses heat as its energy source. Geothermal Heat Pumps Use the constant temperature of the earth as the exchange medium instead...

86

Energy Basics: Geothermal Heat Pumps  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

EERE: Energy Basics Geothermal Heat Pumps Geothermal heat pumps use the constant temperature of the earth as an exchange medium for heat. Although many parts of the country...

87

Heat pumps | Open Energy Information  

Open Energy Info (EERE)

Page Edit History Facebook icon Twitter icon Heat pumps Jump to: navigation, search TODO: Add description List of Heat pumps Incentives Retrieved from "http:en.openei.orgw...

88

Pressure charged airlift pump  

DOE Patents (OSTI)

A pumping system is described for pumping fluids, such as water with entrained mud and small rocks, out of underground cavities such as drilled wells, which can effectively remove fluids down to a level very close to the bottom of the cavity and which can operate solely by compressed air pumped down through the cavity. The system utilizes a subassembly having a pair of parallel conduit sections (44, 46) adapted to be connected onto the bottom of a drill string utilized for drilling the cavity, the drill string also having a pair of coaxially extending conduits. The subassembly includes an upper portion which has means for connection onto the drill string and terminates the first conduit of the drill string in a plenum (55). A compressed air-driven pump (62) is suspended from the upper portion. The pump sucks fluids from the bottom of the cavity and discharges them into the second conduit. Compressed air pumped down through the first conduit (46) to the plenum powers the compressed air-driven pump and aerates the fluid in the second conduit to lift it to the earth's surface.

Campbell, Gene K. (Las Vegas, NV)

1983-01-01T23:59:59.000Z

89

RENEWABLE LIQUID GETTERING PUMP  

DOE Patents (OSTI)

A method and structure were developed for pumping gases by simple absorption into a liquid gettering material. The invention comprises means ror continuously pumping a liquid getterrng material from a reservoir to the top of a generally vertical surface disposed in a vacuum pumping chamber to receive gaseous and other particles in the liquid gettering material which continuously flows downward over the vertical suiface. Means are provided for continuous removal, degassing, and return of a portion of the liquid gettering material from the reservoir connected with collectrng means at the base of the generally vertical plate. (AEC)

Batzer, T.H.

1962-08-21T23:59:59.000Z

90

Heat Pumps | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Heat Pumps Heat Pumps Heat Pumps Geothermal heat pumps are expensive to install but pay for themselves over time in reduced heating and cooling costs. Learn more about how geothermal heat pumps heat and cool buildings by concentrating the naturally existing heat contained within the earth -- a clean, reliable, and renewable source of energy. In moderate climates, heat pumps can be an energy-efficient alternative to furnaces and air conditioners. Several types of heat pumps are available, including air-source; geothermal; ductless, mini-split; and absorption heat pumps. Learn more about the different options and how to use your heat pump efficiently to save money and energy at home. Featured Heat Pump Systems A heat pump can provide an alternative to using your air conditioner. | Photo courtesy of iStockPhoto/LordRunar.

91

GAS METERING PUMP  

DOE Patents (OSTI)

A liquid piston gas pump is described, capable of pumping minute amounts of gas in accurately measurable quantities. The pump consists of a flanged cylindrical regulating chamber and a mercury filled bellows. Sealed to the ABSTRACTS regulating chamber is a value and having a gas inlet and outlet, the inlet being connected by a helical channel to the bellows. A gravity check valve is in the gas outlet, so the gas passes through the inlet and the helical channel to the bellows where the pumping action as well as the metering is accomplished by the actuation of the mercury filled bellows. The gas then flows through the check valve and outlet to any associated apparatus.

George, C.M.

1957-12-31T23:59:59.000Z

92

Geothermal Heat Pumps  

Energy.gov (U.S. Department of Energy (DOE))

Geothermal heat pumps use the constant temperature of the earth as an exchange medium for heat. Although many parts of the country experience seasonal temperature extremesfrom scorching heat in...

93

Absorption heat pump system  

DOE Patents (OSTI)

The efficiency of an absorption heat pump system is improved by conducting liquid from a second stage evaporator thereof to an auxiliary heat exchanger positioned downstream of a primary heat exchanger in the desorber of the system.

Grossman, Gershon (Oak Ridge, TN)

1984-01-01T23:59:59.000Z

94

Absorption heat pump system  

DOE Patents (OSTI)

The efficiency of an absorption heat pump system is improved by conducting liquid from a second stage evaporator thereof to an auxiliary heat exchanger positioned downstream of a primary heat exchanger in the desorber of the system.

Grossman, G.

1982-06-16T23:59:59.000Z

95

Heat Pump Systems  

Energy.gov (U.S. Department of Energy (DOE))

Like a refrigerator, heat pumps use electricity to move heat from a cool space into a warm space, making the cool space cooler and the warm space warmer. Because they move heat rather than generate...

96

Direct nuclear pumped laser  

DOE Patents (OSTI)

There is provided a direct nuclear pumped gas laser in which the lasing mechanism is collisional radiated recombination of ions. The gas laser active medium is a mixture of the gases, with one example being neon and nitrogen.

Miley, George H. (Champagne, IL); Wells, William E. (Urbana, IL); DeYoung, Russell J. (Hampton, VA)

1978-01-01T23:59:59.000Z

97

Documents: Paducah DUF6 Conversion Facility Final EIS and ROD  

NLE Websites -- All DOE Office Websites (Extended Search)

Paducah DUF6 Final EIS Paducah DUF6 Final EIS Search Documents: Search PDF Documents View a list of all documents Paducah DUF6 Conversion Facility Final EIS and Record of Decision Full text of the Record of Decision and Final Environmental Impact Statement for Construction and Operation of a Depleted Uranium Hexafluoride Conversion Facility at the Paducah, Kentucky, Site. The full text of the Record of Decision and Paducah DUF6 Conversion Facility Final EIS and ROD is available for downloading or browsing in Adobe Acrobat PDF format through the links below. You may also order a CD-ROM or paper copy of the Depleted UF6 Conversion Facility EISs by submitting a Final EIS Document Request Form. Record of Decision PDF Icon Paducah DUF6 Conversion Facility: Record of Decision 3.6 MB details

98

Documents: Portsmouth DUF6 Conversion Facility Final EIS and ROD  

NLE Websites -- All DOE Office Websites (Extended Search)

Portsmouth DUF6 Final EIS Portsmouth DUF6 Final EIS Search Documents: Search PDF Documents View a list of all documents Portsmouth DUF6 Conversion Facility Final EIS and Record of Decision Full text of the Record of Decision and Final Environmental Impact Statement for Construction and Operation of a Depleted Uranium Hexafluoride Conversion Facility at the Portsmouth, Ohio, Site. The full text of the Record of Decision and Portsmouth DUF6 Conversion Facility Final EIS and ROD is available for downloading or browsing in Adobe Acrobat PDF format through the links below. Record of Decision PDF Icon Portsmouth DUF6 Conversion Facility: Record of Decision 3.8 MB details PDF Icon Portsmouth DUF6 Conversion Facility: Record of Decision: As Published in the Federal Register 82 KB details

99

Record of Decision (ROD) | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Record of Decision (ROD) Record of Decision (ROD) Record of Decision (ROD) A concise public document that records a Federal agency's decision(s) concerning a proposed action for which the agency has prepared an environmental impact statement (See CEQ and DOE NEPA regulations at 40 CFR 1505.2 and 10 CFR 1021.315, respectively). If you have any trouble finding a specific document, please contact AskNEPA@hq.doe.gov for assistance. Documents Available for Download April 12, 1995 EIS-0082: Record of Decision Defense Waste Processing Facility at the Savannah River Site, Aiken, South Carolina February 22, 1995 EIS-0219: Record of Decision Stabilization of Plutonium Solutions Stored in the F- Canyon Facility at the Savannah River Site, Aiken, SC February 22, 1995 EIS-0219: Record of Decision

100

Record of Decision (ROD) | Department of Energy  

NLE Websites -- All DOE Office Websites (Extended Search)

Record of Decision (ROD) Record of Decision (ROD) Record of Decision (ROD) A concise public document that records a Federal agency's decision(s) concerning a proposed action for which the agency has prepared an environmental impact statement (See CEQ and DOE NEPA regulations at 40 CFR 1505.2 and 10 CFR 1021.315, respectively). If you have any trouble finding a specific document, please contact AskNEPA@hq.doe.gov for assistance. Documents Available for Download January 10, 2014 EIS-0464: Record of Decision Lake Charles Carbon Capture and Sequestration Project, Lake Charles, Louisiana and Brazoria County, Texas December 13, 2013 EIS-0391: Record of Decision Final Tank Closure and Waste Management Environmental Impact Statement for the Hanford Site, Richland, Washington October 1, 2013

Note: This page contains sample records for the topic "rod pumps view" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


101

Thermal modeling of W rod armor.  

Science Conference Proceedings (OSTI)

Sandia has developed and tested mockups armored with W rods over the last decade and pioneered the initial development of W rod armor for International Thermonuclear Experimental Reactor (ITER) in the 1990's. We have also developed 2D and 3D thermal and stress models of W rod-armored plasma facing components (PFCs) and test mockups and are applying the models to both short pulses, i.e. edge localized modes (ELMs), and thermal performance in steady state for applications in C-MOD, DiMES testing and ITER. This paper briefly describes the 2D and 3D models and their applications with emphasis on modeling for an ongoing test program that simulates repeated heat loads from ITER ELMs.

Nygren, Richard Einar

2004-09-01T23:59:59.000Z

102

Magnetic switch for reactor control rod. [LMFBR  

DOE Patents (OSTI)

A magnetic reed switch assembly is described for activating an electromagnetic grapple utilized to hold a control rod in position above a reactor core. In normal operation the magnetic field of a permanent magnet is short-circuited by a magnetic shunt, diverting the magnetic field away from the reed switch. The magnetic shunt is made of a material having a Curie-point at the desired release temperature. Above that temperature the material loses its ferromagnetic properties, and the magnetic path is diverted to the reed switch which closes and short-circuits the control circuit for the control rod electro-magnetic grapple which allows the control rod to drop into the reactor core for controlling the reactivity of the core.

Germer, J.H.

1982-09-30T23:59:59.000Z

103

Magnetic switch for reactor control rod  

DOE Patents (OSTI)

A magnetic reed switch assembly for activating an electromagnetic grapple utilized to hold a control rod in position above a reactor core. In normal operation the magnetic field of a permanent magnet is short-circuited by a magnetic shunt, diverting the magnetic field away from the reed switch. The magnetic shunt is made of a material having a Curie-point at the desired release temperature. Above that temperature the material loses its ferromagnetic properties, and the magnetic path is diverted to the reed switch which closes and short-circuits the control circuit for the control rod electromagnetic grapple which allows the control rod to drop into the reactor core for controlling the reactivity of the core.

Germer, John H. (San Jose, CA)

1986-01-01T23:59:59.000Z

104

Control rod drive for reactor shutdown  

DOE Patents (OSTI)

A means for rapidly shutting down or scramming a nuclear reactor, such as a liquid metal-cooled fast breeder reactor, and serves as a backup to the primary shutdown system. The control rod drive consists basically of an in-core assembly, a drive shaft and seal assembly, and a control drive mechanism. The control rod is driven into the core region of the reactor by gravity and hydraulic pressure forces supplied by the reactor coolant, thus assuring that common mode failures will not interfere with or prohibit scramming the reactor when necessary.

McKeehan, Ernest R. (Los Gatos, CA); Shawver, Bruce M. (San Jose, CA); Schiro, Donald J. (San Jose, CA); Taft, William E. (Los Gatos, CA)

1976-01-20T23:59:59.000Z

105

HIGH STRENGTH CONTROL RODS FOR NEUTRONIC REACTORS  

DOE Patents (OSTI)

Nuclear reactor control rods comprised of highly compressed and sintered finely divided metal alloy panticles and fine metal oxide panticles substantially uniformly distributed theretbrough are described. The metal alloy consists essentially of silver, indium, cadmium, tin, and aluminum, the amount of each being present in centain percentages by weight. The oxide particles are metal oxides of the metal alloy composition, the amount of oxygen being present in certain percentages by weight and all the oxygen present being substantially in the form of metal oxide. This control rod is characterized by its high strength and resistance to creep at elevated temperatures.

Lustman, B.; Losco, E.F.; Cohen, I.

1961-07-11T23:59:59.000Z

106

Method and means of packaging nuclear fuel rods for handling  

DOE Patents (OSTI)

Nuclear fuel rods, especially spent nuclear fuel rods that may show physical distortion, are encased within a metallic enclosing structure by forming a tube about the fuel rod. The tube has previously been rolled to form an overlapping tubular structure and then unrolled and coiled about an axis perpendicular to the tube. The fuel rod is inserted into the tube as the rolled tube is removed from a coiled strip and allowed to reassume its tubular shape about the fuel rod. Rollers support the coiled strip in an open position as the coiled strip is uncoiled and allowed to roll about the fuel rod.

Adam, Milton F. (Idaho Falls, ID)

1979-01-01T23:59:59.000Z

107

Well-pump alignment system  

DOE Patents (OSTI)

An improved well-pump for geothermal wells, an alignment system for a well-pump, and to a method for aligning a rotor and stator within a well-pump are disclosed, wherein the well-pump has a whistle assembly formed at a bottom portion thereof, such that variations in the frequency of the whistle, indicating misalignment, may be monitored during pumping. 6 figs.

Drumheller, D.S.

1998-10-20T23:59:59.000Z

108

Pumping performance of a new type of hybrid molecular pump  

Science Conference Proceedings (OSTI)

A new type of hybrid molecular pump of high performance and reliability has been developed. The pumps rotational speed is 18?000 rpm. The pump is constructed with eleven stages of a turbomolecular pump and a drum multigroove drum molecular pump in which the clearance between rotor and stationary part is 0.35 mm; the rotors deformation forms a cuneiform channel of the proper working clearance to ensure the pumps performance and working reliability. The pump can operate within the pressure range of 510210?6 Pa for a oil?free vacuum with the maximum speed of 400 l/s. The maximum compression ratio for H2 is over 4000. It can be widely used in vacuum processes

Dechun Ba; Naiheng Yang; Xiaodong Wang; Shijin Pang; Yu Zhu; Xiaozhen Wang

1992-01-01T23:59:59.000Z

109

Underground pumped hydroelectric storage  

DOE Green Energy (OSTI)

Underground pumped hydroelectric energy storage was conceived as a modification of surface pumped storage to eliminate dependence upon fortuitous topography, provide higher hydraulic heads, and reduce environmental concerns. A UPHS plant offers substantial savings in investment cost over coal-fired cycling plants and savings in system production costs over gas turbines. Potential location near load centers lowers transmission costs and line losses. Environmental impact is less than that for a coal-fired cycling plant. The inherent benefits include those of all pumped storage (i.e., rapid load response, emergency capacity, improvement in efficiency as pumps improve, and capacity for voltage regulation). A UPHS plant would be powered by either a coal-fired or nuclear baseload plant. The economic capacity of a UPHS plant would be in the range of 1000 to 3000 MW. This storage level is compatible with the load-leveling requirements of a greater metropolitan area with population of 1 million or more. The technical feasibility of UPHS depends upon excavation of a subterranean powerhouse cavern and reservoir caverns within a competent, impervious rock formation, and upon selection of reliable and efficient turbomachinery - pump-turbines and motor-generators - all remotely operable.

Allen, R.D.; Doherty, T.J.; Kannberg, L.D.

1984-07-01T23:59:59.000Z

110

Mechanical Compression Heat Pumps  

E-Print Network (OSTI)

Mechanical compression heat pumping is not new in industrial applications. In fact, industry history suggests that the theoretical concept was developed before 1825. Heat pump manufacturers gained the support of consultants and end-users when the energy crisis hit this country in 1973. That interest, today, has been dampened because there is a current abundance of the basic sources of industrial energy (namely oil and natural gas). Meanwhile, Mycom used the window of the current opportunities to develop, design and test compressors built to meet the needs of the mechanically demanding industrial heat pump applications which often require high compression ratios and temperatures in excess of 200 degrees F. This paper will review the theoretical foundation for heat pumps and present the mechanical and thermal requirements of the compressors which constitute the heart and soul of the system. It will also provide a quick survey of the available types of compressors for heat pumping and some of the industrial processes where simultaneous heating and cooling proceed along parallel demand paths. The case history will examine the system flexibility and the economic advantages realized in a barley malting process.

Apaloo, T. L.; Kawamura, K.; Matsuda, J.

1986-06-01T23:59:59.000Z

111

Piston rod seal for a Stirling engine  

DOE Patents (OSTI)

In a piston rod seal for a Stirling engine, a hydrostatic bearing and differential pressure regulating valve are utilized to provide for a low pressure differential across a rubbing seal between the hydrogen and oil so as to reduce wear on the seal.

Shapiro, Wilbur (Schenectady, NY)

1984-01-01T23:59:59.000Z

112

Fusion reactor pumped laser  

DOE Patents (OSTI)

A nuclear pumped laser capable of producing long pulses of very high power laser radiation is provided. A toroidal fusion reactor provides energetic neutrons which are slowed down by a moderator. The moderated neutrons are converted to energetic particles capable of pumping a lasing medium. The lasing medium is housed in an annular cell surrounding the reactor. The cell includes an annular reflecting mirror at the bottom and an annular output window at the top. A neutron reflector is disposed around the cell to reflect escaping neutrons back into the cell. The laser radiation from the annular window is focused onto a beam compactor which generates a single coherent output laser beam.

Jassby, Daniel L. (Princeton, NJ)

1988-01-01T23:59:59.000Z

113

Velocity pump reaction turbine  

DOE Patents (OSTI)

An expanding hydraulic/two-phase velocity pump reaction turbine including a dual concentric rotor configuration with an inter-rotor annular flow channel in which the inner rotor is mechanically driven by the outer rotor. In another embodiment, the inner rotor is immobilized and provided with gas recovery ports on its outer surface by means of which gas in solution may be recovered. This velocity pump reaction turbine configuration is capable of potential energy conversion efficiencies of up to 70%, and is particularly suited for geothermal applications.

House, Palmer A. (Walnut Creek, CA)

1982-01-01T23:59:59.000Z

114

Velocity pump reaction turbine  

DOE Patents (OSTI)

An expanding hydraulic/two-phase velocity pump reaction turbine including a dual concentric rotor configuration with an inter-rotor annular flow channel in which the inner rotor is mechanically driven by the outer rotor. In another embodiment, the inner rotor is immobilized and provided with gas recovery ports on its outer surface by means of which gas in solution may be recovered. This velocity pump reaction turbine configuration is capable of potential energy conversion efficiencies of up to 70%, and is particularly suited for geothermal applications.

House, Palmer A. (Walnut Creek, CA)

1984-01-01T23:59:59.000Z

115

Acoustical heat pumping engine  

DOE Patents (OSTI)

The disclosure is directed to an acoustical heat pumping engine without moving seals. A tubular housing holds a compressible fluid capable of supporting an acoustical standing wave. An acoustical driver is disposed at one end of the housing and the other end is capped. A second thermodynamic medium is disposed in the housing near to but spaced from the capped end. Heat is pumped along the second thermodynamic medium toward the capped end as a consequence both of the pressure oscillation due to the driver and imperfect thermal contact between the fluid and the second thermodynamic medium. 2 figs.

Wheatley, J.C.; Swift, G.W.; Migliori, A.

1983-08-16T23:59:59.000Z

116

Acoustical heat pumping engine  

DOE Patents (OSTI)

The disclosure is directed to an acoustical heat pumping engine without moving seals. A tubular housing holds a compressible fluid capable of supporting an acoustical standing wave. An acoustical driver is disposed at one end of the housing and the other end is capped. A second thermodynamic medium is disposed in the housing near to but spaced from the capped end. Heat is pumped along the second thermodynamic medium toward the capped end as a consequence both of the pressure oscillation due to the driver and imperfect thermal contact between the fluid and the second thermodynamic medium.

Wheatley, John C. (Los Alamos, NM); Swift, Gregory W. (Los Alamos, NM); Migliori, Albert (Santa Fe, NM)

1983-08-16T23:59:59.000Z

117

Viscosity of concentrated suspensions of sphere/rod mixtures  

SciTech Connect

This paper discusses the viscosity of concentrated suspensions of sphere/rod mixtures by adopting the Thomas relations for spheres and Milliken`s for randomly oriented rods with aspect ratio of 20. The relative viscosity of a mixed suspension may now be calculated for any combination of rods (of aspect ratio 20) and spheres.

Mor, R.; Gottlieb, M. [Ben-Gurion Univ. of the Negev, Beersheba (Israel). Dept. of Chemical Engineering; Graham, A.L. [Los Alamos National Lab., NM (United States); Mondy, L.A.

1996-05-01T23:59:59.000Z

118

CONTROL ROD DRIVE MECHANISM FOR A NUCLEAR REACTOR  

DOE Patents (OSTI)

A lead-screw-type control rod drive featuring an electric motor and a fluid motor arranged to provide a selectably alternative driving means is described. The electric motor serves to drive the control rod slowly during normal operation, while the fluid motor, assisted by an automatic declutching of the electric motor, affords high-speed rod insertion during a scram. (AEC)

Hawke, B.C.; Liederbach, F.J.; Lones, W.

1963-05-14T23:59:59.000Z

119

Pumped oil feed systems for rotary vacuum pumps  

Science Conference Proceedings (OSTI)

Pumped oil feed systems developed by the authors and their colleagues provide positive lubrication under all inlet pressure conditions

H. Wycliffe; B. D. Power

1981-01-01T23:59:59.000Z

120

Linear induction pump  

DOE Patents (OSTI)

Electromagnetic linear induction pump for liquid metal which includes a unitary pump duct. The duct comprises two substantially flat parallel spaced-apart wall members, one being located above the other and two parallel opposing side members interconnecting the wall members. Located within the duct are a plurality of web members interconnecting the wall members and extending parallel to the side members whereby the wall members, side members and web members define a plurality of fluid passageways, each of the fluid passageways having substantially the same cross-sectional flow area. Attached to an outer surface of each side member is an electrically conductive end bar for the passage of an induced current therethrough. A multi-phase, electrical stator is located adjacent each of the wall members. The duct, stators, and end bars are enclosed in a housing which is provided with an inlet and outlet in fluid communication with opposite ends of the fluid passageways in the pump duct. In accordance with a preferred embodiment, the inlet and outlet includes a transition means which provides for a transition from a round cross-sectional flow path to a substantially rectangular cross-sectional flow path defined by the pump duct.

Meisner, John W. (Newbury Park, CA); Moore, Robert M. (Canoga Park, CA); Bienvenue, Louis L. (Chatsworth, CA)

1985-03-19T23:59:59.000Z

Note: This page contains sample records for the topic "rod pumps view" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


121

Shrouded inducer pump  

DOE Patents (OSTI)

An improvement in a pump is described including a shrouded inducer, the improvement comprising first and second sealing means which cooperate with a first vortex cell and a series of secondary vortex cells to remove any tangential velocity components from the recirculation flow. 3 figs.

Meng, S.Y.

1989-08-08T23:59:59.000Z

122

Explosively pumped laser light  

DOE Patents (OSTI)

A single shot laser pumped by detonation of an explosive in a shell casing. The shock wave from detonation of the explosive causes a rare gas to luminesce. The high intensity light from the gas enters a lasing medium, which thereafter outputs a pulse of laser light to disable optical sensors and personnel.

Piltch, Martin S. (Los Alamos, NM); Michelotti, Roy A. (Los Alamos, NM)

1991-01-01T23:59:59.000Z

123

Indexes of pumps for oil field pumping units  

Science Conference Proceedings (OSTI)

As reported previously, a series of oil field pumping units has been developed with power outputs of 125, 250, 500, and 1000 kW, designed for injecting working fluids in cementing operations in oil and gas wells, hydraulic fracturing of formations, washing out sand plugs, and other production operations. The units are designed for the use of three-plunger pumps with individual power outputs of 125 or 500 kW. In the 250- and 1000-kW units, two such pumps are used. The 1000-kW pumping unit serves mainly for deep-penetration hydraulic fracturing of formations, and also for fracturing deep formations. The hydraulic fracturing process does not require the use of units with two pumps; this has been demonstrated by experience, both here and in other countries. All units intended for use in hydraulic fracturing are built with a single pump, transmission, and drive. Pumping units for well cementing must have two pumps that will give a high delivery rate. At the start of the operation, a single pump can be used to feed water into the cement mixer, with the second pump used to transfer the cement slurry to the well. Then both pumps are connected to the slurry injection line. The operation of these pumps is described.

Ibragimov, E.S.

1995-07-01T23:59:59.000Z

124

Ant Colony Clustering Procedure Used in Vibration Fault Diagnosis of Beam Pumping Unit  

Science Conference Proceedings (OSTI)

The study of vibration fault diagnosis of beam pumping unit is an important task to reasonable production, scientific management and improvement of the oil recovery. The vibration fault diagnosis is a good method with direct result. In view of measurement ... Keywords: ant colony algorithm, clustering procedure, beam pumping unit, fault, diagnosis

Wuguang Li; Shenglai Yang; Ranran Xu; Xiaoxu Sun; Xing Zhang

2011-10-01T23:59:59.000Z

125

Pumped Hydro | Open Energy Information  

Open Energy Info (EERE)

search Introduction caption:Pumped Storage diagram at TVA's Racoon mountain Pumped Hydro is an energy storage technique where water is used as a medium in order to store...

126

Thermal regimes of high burn-up nuclear fuel rod  

E-Print Network (OSTI)

The temperature distribution in the nuclear fuel rods for high burn-up is studied. We use the numerical and analytical approaches. It is shown that the time taken to have the stationary thermal regime of nuclear fuel rod is less than one minute. We can make the inference that the behavior of the nuclear fuel rod can be considered as a stationary task. Exact solutions of the temperature distribution in the fuel rods in the stationary case are found. Thermal regimes of high burn-up the nuclear fuel rods are analyzed.

Kudryashov, Nikolai A; Chmykhov, Mikhail A; 10.1016/j.cnsns.2009.05.063

2012-01-01T23:59:59.000Z

127

Variable flow control for a nuclear reactor control rod  

DOE Patents (OSTI)

A variable flow control for a control rod assembly of a nuclear reactor that depends on turbulent friction though an annulus. The annulus is formed by a piston attached to the control rod drive shaft and a housing or sleeve fitted to the enclosure housing the control rod. As the nuclear fuel is burned up and the need exists for increased reactivity, the control rods are withdrawn, which increases the length of the annulus and decreases the rate of coolant flow through the control rod assembly.

Carleton, Richard D. (Pittsburgh, PA); Bhattacharyya, Ajay (Vasteras, SE)

1978-01-01T23:59:59.000Z

128

Solid-state laser pumping with a planar compound parabolic concentrator  

Science Conference Proceedings (OSTI)

A novel solid-state laser-pumping scheme is proposed that combines a reflective lamp chamber and a compound parabolic concentrator (CPC) as a light guide. The CPC is made of a transparent material of high refractive index, and light is guided by the total internal reflection, with drastically reduced reflection losses. Material is chosen so that the absorption losses are minimized in the pumping wavelength range. The lamp chamber is designed with the principles of nonimaging optics, which ensures that the radiation is efficiently transferred from the lamp to the input aperture of the CPC. The pumping efficiency was first estimated theoretically, which gave us enough justification for the more accurate calculations with ray tracing. Single as well as multiple pumping cavities are discussed. New pumping geometry results in significantly increased pumping efficiency compared with conventional geometries. Also the lamp and the laser rod are separated, leading to reduced thermal load. We found that the proposed pumping method is also applicable to diode-pumped lasers. {copyright} 1997 Optical Society of America

Pantelic, D.V.; Panic, B.M.; Belic, I.Z. [Institute of Physics, Pregrevica 118, Zemun, 11080 Belgrade (Yugoslavia)

1997-10-01T23:59:59.000Z

129

SURVEY OF SODIUM PUMP TECHNOLOGY  

SciTech Connect

A review is presented of the current status of sodium pump development as related to nuclear power applications. A description is given of the design features and performance characteristics of the more important types of sodium and sodium-- potassium alloy (NaK) pumps. Some requirements for sodium pumps for future large liquid metal reactor systems are presented with some preliminary consideration of the potential of various pump types to meet these requirements. (auth)

Nixon, D.R.

1963-06-01T23:59:59.000Z

130

Nuclear reactor fuel rod attachment system  

DOE Patents (OSTI)

A reusable system for removably attaching a nuclear reactor fuel rod (12) to a support member (14). A locking cap (22) is secured to the fuel rod (12) and a locking strip (24) is fastened to the support member (14). The locking cap (22) has two opposing fingers (24a and 24b) shaped to form a socket having a body portion (26). The locking strip has an extension (36) shaped to rigidly attach to the socket's body portion (26). The locking cap's fingers are resiliently deflectable. For attachment, the locking cap (22) is longitudinally pushed onto the locking strip (24) causing the extension (36) to temporarily deflect open the fingers (24a and 24b) to engage the socket's body portion (26). For removal, the process is reversed.

Christiansen, David W. (Kennewick, WA)

1982-01-01T23:59:59.000Z

131

HTGR green rod intercomparison. I. Hydrogen assay  

DOE Green Energy (OSTI)

A /sup 252/Cf hydrogen monitor has been used to determine the hydrogen content of each of the 144 unfired (green) fuel rods being circulated in the New Brunswick Laboratory fuel measurement evaluation program. The monitor was calibrated with standards fabricated by Los Alamos Scientific Laboratory (LASL) Analytical Chemistry Group, CMB-1. Measurements were made relative to these standards and overall accuracies of +-3% were achieved.

Meier, M.M.; Adams, E.L.

1981-01-01T23:59:59.000Z

132

SHINE VACUUM PUMP TEST VERIFICATION  

Science Conference Proceedings (OSTI)

Normetex pumps used world-wide for tritium service are no longer available. DOE and other researchers worldwide have spent significant funds characterizing this pump. Identification of alternate pumps is required for performance and compatibility with tritium gas. Many of the pumps that could be used to meet the functional performance requirements (e.g. pressure and flow conditions) of the Normetex pump have features that include the use of polymers or oils and greases that are not directly compatible with tritium service. This study assembles a test system to determine the flow characteristics for candidate alternate pumps. These tests are critical to the movement of tritium through the SHINE Tritium Purification System (TPS). The purpose of the pump testing is two-fold: (1) obtain baseline vacuum pump characteristics for an alternate (i.e. ?Normetex replacement?) pump intended for use in tritium service; and (2) verify that low pressure hydrogen gas can be transported over distances up to 300 feet by the candidate pumps. Flow rates and nominal system pressures have been identified for the SHINE Mo-99 production process Tritium Purification System (TPS). To minimize the line sizes for the transfer of low pressure tritium from the Neutron Driver Accelerator System (NDAS) to the primary processing systems in the TPS, a ?booster? pump has been located near the accelerator in the design. A series of pump tests were performed at various configurations using hydrogen gas (no tritium) to ensure that this concept is practical and maintains adequate flow rates and required pressures. This report summarizes the results of the tests that have been performed using various pump configurations. The current design of the Tritium Purification System requires the ?booster? pump to discharge to or to be backed by another vacuum pump. Since Normetex pumps are no longer manufactured, a commercially available Edwards scroll pump will be used to back the booster pump. In this case the ?booster pump? is an Adixen Molecular Drag Pump (MDP 5011) and the backing pump is an Edwards (nXDS15iC) scroll pump. Various configurations of the two pumps and associated lengths of ? inch tubing (0 feet to 300 feet) were used in combination with hydrogen and nitrogen flow rates ranging from 25-400 standard cubic centimeters per minute (sccm) to determine whether the proposed pump configuration meets the design criteria for SHINE. The results of this study indicate that even under the most severe conditions (300 feet of tubing and 400 sccm flow rate) the Adixen 5011 MDP can serve as a booster pump to transport gases from the accelerator (NDAS) to the TPS. The Target Gas Receiving System pump (Edwards nXDS15iC) located approximately 300 feet from the accelerator can effectively back the Adixen MDP. The molecular drag pump was able to maintain its full rotational speed even when the flow rate was 400 sccm hydrogen or nitrogen and 300 feet of tubing was installed between the drag pump and the Edwards scroll pump. In addition to maintaining adequate rotation, the pressure in the system was maintained below the target pressure of 30 torr for all flow rates, lengths of tubing, and process gases. This configuration is therefore adequate to meet the SHINE design requirements in terms of flow and pressure.

Morgan, G.; Peters, B.

2013-09-30T23:59:59.000Z

133

Water displacement mercury pump  

DOE Patents (OSTI)

A water displacement mercury pump has a fluid inlet conduit and diffuser, a valve, a pressure cannister, and a fluid outlet conduit. The valve has a valve head which seats in an opening in the cannister. The entire assembly is readily insertable into a process vessel which produces mercury as a product. As the mercury settles, it flows into the opening in the cannister displacing lighter material. When the valve is in a closed position, the pressure cannister is sealed except for the fluid inlet conduit and the fluid outlet conduit. Introduction of a lighter fluid into the cannister will act to displace a heavier fluid from the cannister via the fluid outlet conduit. The entire pump assembly penetrates only a top wall of the process vessel, and not the sides or the bottom wall of the process vessel. This insures a leak-proof environment and is especially suitable for processing of hazardous materials.

Nielsen, Marshall G. (Woodside, CA)

1985-01-01T23:59:59.000Z

134

Water displacement mercury pump  

DOE Patents (OSTI)

A water displacement mercury pump has a fluid inlet conduit and diffuser, a valve, a pressure cannister, and a fluid outlet conduit. The valve has a valve head which seats in an opening in the cannister. The entire assembly is readily insertable into a process vessel which produces mercury as a product. As the mercury settles, it flows into the opening in the cannister displacing lighter material. When the valve is in a closed position, the pressure cannister is sealed except for the fluid inlet conduit and the fluid outlet conduit. Introduction of a lighter fluid into the cannister will act to displace a heavier fluid from the cannister via the fluid outlet conduit. The entire pump assembly penetrates only a top wall of the process vessel, and not the sides or the bottom wall of the process vessel. This insures a leak-proof environment and is especially suitable for processing of hazardous materials.

Nielsen, M.G.

1984-04-20T23:59:59.000Z

135

Fusion reactor pumped laser  

DOE Patents (OSTI)

A nuclear pumped laser capable of producing long pulses of very high power laser radiation is provided. A toroidal fusion reactor provides energetic neutrons which are slowed down by a moderator. The moderated neutrons are converted to energetic particles capable of pumping a lasing medium. The lasing medium is housed in an annular cell surrounding the reactor. The cell includes an annular reflecting mirror at the bottom and an annular output window at the top. A neutron reflector is disposed around the cell to reflect escaping neutrons back into the cell. The laser radiation from the annular window is focused onto a beam compactor which generates a single coherent output laser beam. 10 figs.

Jassby, D.L.

1987-09-04T23:59:59.000Z

136

Multiple source heat pump  

DOE Patents (OSTI)

A heat pump apparatus for conditioning a fluid characterized by a fluid handler and path for circulating a fluid in heat exchange relationship with a refrigerant fluid, at least three refrigerant heat exchangers, one for effecting heat exchange with the fluid, a second for effecting heat exchange with a heat exchange fluid, and a third for effecting heat exchange with ambient air; a compressor for compressing the refrigerant; at least one throttling valve connected at the inlet side of a heat exchanger in which liquid refrigerant is vaporized; a refrigerant circuit; refrigerant; a source of heat exchange fluid; heat exchange fluid circuit and pump for circulating the heat exchange fluid in heat exchange relationship with the refrigerant; and valves or switches for selecting the heat exchangers and directional flow of refrigerant therethrough for selecting a particular mode of operation. Also disclosed are a variety of embodiments, modes of operation, and schematics therefor.

Ecker, Amir L. (Duncanville, TX)

1983-01-01T23:59:59.000Z

137

Reduce Pumping Costs through Optimum Pipe Sizing  

SciTech Connect

BestPractices Program tip sheet discussing pumping system efficiency by reducing pumping costs through optimum pipe sizing.

2005-10-01T23:59:59.000Z

138

Select an Energy-Efficient Centrifugal Pump  

SciTech Connect

BestPractices Program tip sheet discussing pumping system efficiency by selecting an energy-efficient centrifugal pump.

2005-10-01T23:59:59.000Z

139

Pump Systems Optimization: Energy Efficiency  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Pump Systems Pump Systems Optimization: Energy Efficiency and Bottom-Line Savings Host this one-day course to help participants learn how to identify and reduce hidden operation and energy costs. Participants will: * Identify energy savings * Increase profitability * Increase reliability * Earn seven PDH credits Attendees of the "Pump Systems Optimization" one-day course will gain valuable new skills to help them improve centrifugal pump system efficiency to reduce energy and operating costs while earning seven professional development hour (PDH) credits from the Hydraulic Institute. Topics covered include:* * Why Efficient Pump Systems Are Important

140

Dual valve well pump installation  

SciTech Connect

A reciprocating electric motor-pump assembly for lifting well fluid on downstroke of the motor pump assembly, the pump including a barrel below the motor having dual combined inlet and outlet valve means at the lower end thereof, the pump piston moving in the barrel having annular grooves therearound to prevent differential pressure sticking, the electric cable supplying the electric motor being tubular to vent the pump and prevent vacuum or gas lock, there being a packer about the valve barrel separating the outlet valve means thereabove from the inlet valve means therebelow and a packer above the motor about a production tubing including an upper standing valve.

Holm, D. R.

1985-10-22T23:59:59.000Z

Note: This page contains sample records for the topic "rod pumps view" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


141

Save by absorption heat pumping  

SciTech Connect

The author compares absorption heat pumping (AHP) to mechanical vapor compressor (MVC) heat pumping. The moving part of the AHP is a pump easy to maintain and inexpensive to spare. The mechanical component of the MVC is a vapor compressor which requires more maintenance and is cost-prohibitive to spare. Also, in the MVC system, a purified product stream is heat pumped in an open compressor, thus risking product contamination. In the AHP system, the cold and hot utilities are heat pumped. Therefore, product integrity with an AHP system is well protected as in a conventional fractionation column.

Davidson, W.F.; Campagne, W.V.L.

1987-12-01T23:59:59.000Z

142

Hydride heat pump  

DOE Patents (OSTI)

Method and apparatus for the use of hydrides to exhaust heat from one temperature source and deliver the thermal energy extracted for use at a higher temperature, thereby acting as a heat pump. For this purpose there are employed a pair of hydridable metal compounds having different characteristics working together in a closed pressure system employing a high temperature source to upgrade the heat supplied from a low temperature source.

Cottingham, James G. (Center Moriches, NY)

1977-01-01T23:59:59.000Z

143

Thermally activated heat pumps  

SciTech Connect

This article describes research to develop efficient gas-fired heat pumps heat and cool buildings without CFCs. Space heating and cooling use 46% of all energy consumed in US buildings. Air-conditioning is the single leading cause of peak demand for electricity and is a major user of chlorofluorocarbons (CFCs). Advanced energy conversion technology can save 50% of this energy and eliminate CFCs completely. Besides saving energy, advanced systems substantially reduce emissions of carbon dioxide (a greenhouse gas), sulfur dioxide, and nitrogen oxides, which contribute to smog and acid rain. These emissions result from the burning of fossil fuels used to generate electricity. The Office of Building Technologies (OBT) of the US Department of Energy supports private industry`s efforts to improve energy efficiency and increase the use of renewable energy in buildings. To help industry, OBT, through the Oak Ridge National Laboratory, is currently working on thermally activated heat pumps. OBT has selected the following absorption heat pump systems to develop: generator-absorber heat-exchange (GAX) cycle for heating-dominated applications in residential and light commercial buildings; double-condenser-coupled (DCC) cycle for commercial buildings. In addition, OBT is developing computer-aided design software for investigating the absorption cycle.

NONE

1995-05-01T23:59:59.000Z

144

Micro-valve pump light valve display  

DOE Patents (OSTI)

In this invention, a flat panel display incorporates a plurality of micro-pump light valves (MLV's) to form pixels for recreating an image. Each MLV consists of a dielectric drop sandwiched between substrates, at least one of which is transparent, a holding electrode for maintaining the drop outside a viewing area, and a switching electrode from accelerating the drop from a location within the holding electrode to a location within the viewing area. The substrates may further define non-wetting surface areas to create potential energy barriers to assist in controlling movement of the drop. The forces acting on the drop are quadratic in nature to provide a nonlinear response for increased image contrast. A crossed electrode structure can be used to activate the pixels whereby a large flat panel display is formed without active driver components at each pixel.

Lee, Yee-Chun.

1991-01-15T23:59:59.000Z

145

Micro-valve pump light valve display  

DOE Patents (OSTI)

A flat panel display incorporates a plurality of micro-pump light valves (MLV's) to form pixels for recreating an image. Each MLV consists of a dielectric drop sandwiched between substrates, at least one of which is transparent, a holding electrode for maintaining the drop outside a viewing area, and a switching electrode from accelerating the drop from a location within the holding electrode to a location within the viewing area. The sustrates may further define non-wetting surface areas to create potential energy barriers to assist in controlling movement of the drop. The forces acting on the drop are quadratic in nature to provide a nonlinear response for increased image contrast. A crossed electrode structure can be used to activate the pixels whereby a large flat panel display is formed without active driver components at each pixel.

Yeechun Lee.

1993-01-19T23:59:59.000Z

146

Micro-valve pump light valve display  

DOE Patents (OSTI)

In this invention, a flat panel display incorporates a plurality of micro-pump light valves (MLV`s) to form pixels for recreating an image. Each MLV consists of a dielectric drop sandwiched between substrates, at least one of which is transparent, a holding electrode for maintaining the drop outside a viewing area, and a switching electrode from accelerating the drop from a location within the holding electrode to a location within the viewing area. The substrates may further define non-wetting surface areas to create potential energy barriers to assist in controlling movement of the drop. The forces acting on the drop are quadratic in nature to provide a nonlinear response for increased image contrast. A crossed electrode structure can be used to activate the pixels whereby a large flat panel display is formed without active driver components at each pixel.

Lee, Yee-Chun

1991-01-15T23:59:59.000Z

147

Seawater pump study: Ocean Thermal Energy Conversion Program. Final report. [For ocean thermal power plants  

DOE Green Energy (OSTI)

The pumping power required to move cold seawater and warm seawater through an Ocean Thermal Energy Conversion (OTEC) power plant is a significant portion of the plant power output; therefore, seawater pump performance, sizing, and cost information are very influential inputs into any power plant system design optimizations. The analysis and evaluation of large seawater pumping systems selected specifically for the OTEC application are provided with a view toward judging the impact of pump selection on overall OTEC power plant performance. A self-contained bulb, direct drive, axial flow pump was found to have a distinct advantage in performance and arrangement flexibility. A design of a pump operating at a net total head rise of 3.5 meters and a flow capacity of 100 m/sup 3//s is presented including pump blade geometry (profiles), pump diffuser geometry, and pump/diffuser configuration and performance. Results are presented in terms of the geometric and power requirements of several related pump designs over a range of seawater capacity from 25 m/sup 3//s to 100 m/sup 3//s. Summary analysis and evaluations include pump design weights and cost estimates.

Little, T.E.

1978-01-01T23:59:59.000Z

148

MELTING AND FORMING OF SER FUEL RODS  

SciTech Connect

Sixty-one metal alloy reds were fabricated for the SNAP Experimental Reactor (SER), a compact nuclear power source. These rads were 1 in. in diameter by 10 in. long and consisted of an alloy containing 7 wt.% highly enriched uranium and 93 wt.% zinconium. Melting of the alloy was done by generally accepted consumable-arc meltiag techniques. Extrusion of alloy slugs into rods was carried out, unclad, at 850 deg F. Suitable controls were developed to insure uniformity of products and reproducibility of batches. The procedures developed for this application are considered adequate for future requirements. (auth)

Drennan, P.S.

1960-10-01T23:59:59.000Z

149

Indium oxide 'rods in dots' nanostructures  

SciTech Connect

The authors have demonstrated a special indium oxide (In{sub 2}O{sub 3}) 'rods in dots' nanostructure with high nanorod sheet density of over 10{sup 12} cm{sup -2}. The approach has been realized through depositing controllable individual In{sub 2}O{sub 3} nanorods in both number and shape within a single porous alumina membrane (PAM) nanochannel under radio frequency magnetron sputtering. The authors further discussed in detail effects of the PAM configurations (pore diameter and thickness) and sputtering conditions (substrate temperature and argon pressure) on the formation of the In{sub 2}O{sub 3} nanostructure.

Ding, G. Q.; Shen, W. Z.; Zheng, M. J.; Zhou, Z. B. [Laboratory of Condensed Matter Spectroscopy and Opto-Electronic Physics, Department of Physics, Shanghai Jiao Tong University, 1954 Hua Shan Road, Shanghai 200030 (China)

2006-08-07T23:59:59.000Z

150

Rodded shutdown system for a nuclear reactor  

DOE Patents (OSTI)

A top mounted nuclear reactor diverse rodded shutdown system utilizing gas fed into a pressure bearing bellows region sealed at the upper extremity to an armature. The armature is attached to a neutron absorber assembly by a series of shafts and connecting means. The armature is held in an uppermost position by an electromagnet assembly or by pressurized gas in a second embodiment. Deenergizing the electromagnet assembly, or venting the pressurized gas, causes the armature to fall by the force of gravity, thereby lowering the attached absorber assembly into the reactor core.

Golden, Martin P. (Penn Township, Allegheny County, PA); Govi, Aldo R. (Greensburg, PA)

1978-01-01T23:59:59.000Z

151

ALLOY COMPOSITION FOR NEUTRONIC REACTOR CONTROL RODS  

DOE Patents (OSTI)

This invention relates to alloy compositons suitable as cortrol rod material consisting of, by weight, from 85% to 85% Ag, from 2% to 20% In, from up to 10% of Cd, from up to 5% Sn, and from up to 1.5% Al, the amount of each element employed being determined by the equation X + 2Y + 3Z + 3W + 4V = 1.4 and less, where X, Y, Z, W, and V represent the atom fractions of the elements Ag, Cd, In, Al and Sn. (AEC)

Lustman, B.; Losco, E.F.; Snyder, H.J.; Eggleston, R.R.

1963-01-22T23:59:59.000Z

152

Microsoft Word - S05069_ROD.doc  

Office of Legacy Management (LM)

Record of Decision Record of Decision for DOE Areas at the Laboratory for Energy-Related Health Research University of California, Davis September 2009 LMS/LEH/S05069 This page intentionally left blank LMS/LEH/S05069 Record of Decision for DOE Areas at the Laboratory for Energy-Related Health Research University of California, Davis September 2009 This page intentionally left blank U.S. Department of Energy ROD for DOE Areas for LEHR September 2009 Doc. No. S05069, Rev. 0 Page i Contents Acronyms and Abbreviations ..........................................................................................................v 1.0 Declaration .........................................................................................................................1-1

153

Ground-coupled heat pump systems: a pumping analysis.  

E-Print Network (OSTI)

??Ground-coupled heat pump (GCHP) systems use the ground as a heat source or sink that absorbs heat from or rejects heat to the soil, respectively; (more)

Mays, Cristin Jean

2012-01-01T23:59:59.000Z

154

Chemical heat pump  

DOE Patents (OSTI)

A chemical heat pump system is disclosed for use in heating and cooling structures such as residences or commercial buildings. The system is particularly adapted to utilizing solar energy, but also increases the efficiency of other forms of thermal energy when solar energy is not available. When solar energy is not available for relatively short periods of time, the heat storage capacity of the chemical heat pump is utilized to heat the structure as during nighttime hours. The design also permits home heating from solar energy when the sun is shining. The entire system may be conveniently rooftop located. In order to facilitate installation on existing structures, the absorber and vaporizer portions of the system may each be designed as flat, thin wall, thin pan vessels which materially increase the surface area available for heat transfer. In addition, this thin, flat configuration of the absorber and its thin walled (and therefore relatively flexible) construction permits substantial expansion and contraction of the absorber material during vaporization and absorption without generating voids which would interfere with heat transfer. The heat pump part of the system heats or cools a house or other structure through a combination of evaporation and absorption or, conversely, condensation and desorption, in a pair of containers. A set of automatic controls change the system for operation during winter and summer months and for daytime and nighttime operation to satisfactorily heat and cool a house during an entire year. The absorber chamber is subjected to solar heating during regeneration cycles and is covered by one or more layers of glass or other transparent material. Daytime home air used for heating the home is passed at appropriate flow rates between the absorber container and the first transparent cover layer in heat transfer relationship in a manner that greatly reduce eddies and resultant heat loss from the absorbant surface to ambient atmosphere.

Greiner, Leonard (2750-C Segerstrom Ave., Santa Ana, CA 92704)

1980-01-01T23:59:59.000Z

155

Pressurized Water Reactor AgInCd Control Rod Lifetime  

Science Conference Proceedings (OSTI)

Swelling of the lower end tip of AgInCd (AIC) absorber rods is one of the lifetime limiting phenomena for PWR control rods. Understanding the relationship between swelling and accumulated fluence is crucial to predicting the service life of these components. This report presents the initial results and analyses from a control rod absorber research program led by the EPRI Fuel Reliability Program, in close collaboration with Westinghouse Electric Company and AREVA NP. The goals of the program are to chara...

2009-08-27T23:59:59.000Z

156

Absorption heat pump system  

DOE Patents (OSTI)

An improvement in an absorption heat pump cycle is obtained by adding adiabatic absorption and desorption steps to the absorber and desorber of the system. The adiabatic processes make it possible to obtain the highest temperature in the absorber before any heat is removed from it and the lowest temperature in the desorber before heat is added to it, allowing for efficient utilization of the thermodynamic availability of the heat supply stream. The improved system can operate with a larger difference between high and low working fluid concentrations, less circulation losses, and more efficient heat exchange than a conventional system.

Grossman, Gershon (Oak Ridge, TN); Perez-Blanco, Horacio (Knoxville, TN)

1984-01-01T23:59:59.000Z

157

Heat pump arrangement  

SciTech Connect

The invention concerns a heat pump arrangement for heating of houses. The arrangement comprises a compressor, a condensor and a vaporizer, which is a part of an icing machine. The vaporizer is designed as a heat exchanger and is connected to a circulation system comprising an accumulator, to which the ice slush from the icing machine is delivered. Water from the accumulator is delivered to the icing machine. The water in the accumulator can be heated E.G. By means of a solar energy collector, the outdoor air etc. Surface water or waste water from the household can be delivered to the accumulator and replace the ice slush therein.

Abrahamsson, T.; Hansson, K.

1981-03-03T23:59:59.000Z

158

ARTS - Anode & Rod Tracking System A New Tool for ...  

Science Conference Proceedings (OSTI)

Abstract Scope, ARTS is a combination of an anode and rod identification and tracking system, together with a customized database and analytical software.

159

Improvement of Descalability of High Carbon Steel Wire Rods  

Science Conference Proceedings (OSTI)

Presentation Title, Improvement of Descalability of High Carbon Steel Wire Rods ... In the past, hydrochloric and sulfuric acids were used for the purpose of wire...

160

Control of Wire Rod Physical Properties Like Ultimate Tensile ...  

Science Conference Proceedings (OSTI)

Sep 1, 2001 ... Control of Wire Rod Physical Properties Like Ultimate Tensile Strength and Elongation by Close Monitoring of Rolling Energy Input

Note: This page contains sample records for the topic "rod pumps view" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


161

Lumped-parameter fuel rod model for rapid thermal transients  

SciTech Connect

The thermal behavior of fuel rods during simulated accident conditions is extremely sensitive to the heat transfer coefficient which is, in turn, very sensitive to the cladding surface temperature and the fluid conditions. The development of a semianalytical, lumped-parameter fuel rod model which is intended to provide accurate calculations, in a minimum amount of computer time, of the thermal response of fuel rods during a simulated loss-of-coolant accident is described. The results show good agreement with calculations from a comprehensive fuel-rod code (FRAP-T) currently in use at Aerojet Nuclear Company. (auth)

Perkins, K.R.; Ramshaw, J.D.

1975-07-01T23:59:59.000Z

162

Control rod assembly for liquid metal fast breeder reactors  

SciTech Connect

This standard establishes the requirements for fabrication, testing, and inspection of control rod assemblies for use in liquid metal fast breeder reactors.

1978-09-08T23:59:59.000Z

163

Fuel Reliability Guidelines: PWR Grid-to-Rod Fretting  

Science Conference Proceedings (OSTI)

Relative motion between the fuel rods and fuel assembly spacer grids can lead to excessive fuel rod wear and, in some cases, to fuel rod failure. Based on industry data, grid-to-rod-fretting (GTRF) has been the number one cause of fuel failures within the U.S. pressurized water reactor (PWR) fleet, accounting for more than 70% of all PWR leaking fuel assemblies. Most of the GTRF failures have occurred during an assembly's final cycle of operation when it is located on the periphery of the core adjacent t...

2008-07-28T23:59:59.000Z

164

Mountain View Electric Association, Inc - Energy Efficiency Credit Program  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Mountain View Electric Association, Inc - Energy Efficiency Credit Mountain View Electric Association, Inc - Energy Efficiency Credit Program Mountain View Electric Association, Inc - Energy Efficiency Credit Program < Back Eligibility Agricultural Commercial Industrial Residential Savings Category Appliances & Electronics Heating & Cooling Commercial Heating & Cooling Heat Pumps Commercial Lighting Lighting Manufacturing Water Heating Maximum Rebate LED Street Lighting: $20,000 LED Refrigerated Case Lighting Retrofit: $3,000 Commercial Lighting Replacement: $20,000 Program Info State Colorado Program Type Utility Rebate Program Rebate Amount Geothermal Heat Pumps: $150/ton, additional $150 per unit for Energy Star units greater than 3 tons, additional $120 if attached to electric water heater Air-Source Heat Pump: $125 - $150/ton, additional $100 - $150 per unit for

165

CRBR pump water test experience  

Science Conference Proceedings (OSTI)

The hydraulic design features and water testing of the hydraulic scale model and prototype pump of the sodium pumps used in the primary and intermediate sodium loops of the Clinch River Breeder Reactor Plant (CRBRP) are described. The Hydraulic Scale Model tests are performed and the results of these tests are discussed. The Prototype Pump tests are performed and the results of these tests are discussed.

Cook, M.E.; Huber, K.A.

1983-01-01T23:59:59.000Z

166

View-Augmented Abstractions  

Science Conference Proceedings (OSTI)

This paper introduces view-augmented abstractions, which specialize an underlying numeric domain to focus on a particular expression or set of expressions. A view-augmented abstraction adds a set of materialized views to the original domain. View augmentation ... Keywords: Numeric abstract domains, abstract-interpretation precision, view maintenance

Matt Elder; Denis Gopan; Thomas Reps

2010-10-01T23:59:59.000Z

167

Chemical heat pump  

DOE Patents (OSTI)

A chemical heat pump system is disclosed for use in heating and cooling structures such as residences or commercial buildings. The system is particularly adapted to utilizing solar energy, but also increases the efficiency of other forms of thermal energy when solar energy is not available. When solar energy is not available for relatively short periods of time, the heat storage capacity of the chemical heat pump is utilized to heat the structure, as during nighttime hours. The design also permits home heating from solar energy when the sun is shining. The entire system may be conveniently rooftop located. In order to faciliate installation on existing structures, the absorber and vaporizer portions of the system may each be designed as flat, thin wall, thin pan vessels which materially increase the surface area available for heat transfer. In addition, this thin, flat configuration of the absorber and its thin walled (and therefore relatively flexible) construction permits substantial expansion and contraction of the absorber material during vaporization and absorption without generating voids which would interfere with heat transfer.

Greiner, Leonard (2853-A Hickory Pl., Costa Mesa, CA 92626)

1984-01-01T23:59:59.000Z

168

Chemical heat pump  

DOE Patents (OSTI)

A chemical heat pump system is disclosed for use in heating and cooling structures such as residences or commercial buildings. The system is particularly adapted to utilizing solar energy, but also increases the efficiency of other forms of thermal energy when solar energy is not available. When solar energy is not available for relatively short periods of time, the heat storage capacity of the chemical heat pump is utilized to heat the structure, as during nighttime hours. The design also permits home heating from solar energy when the sun is shining. The entire system may be conveniently rooftop located. In order to facilitate intallation on existing structures, the absorber and vaporizer portions of the system may each be designed as flat, thin wall, thin pan vessels which materially increase the surface area available for heat transfer. In addition, this thin, flat configuration of the absorber and its thin walled (and therefore relatively flexible) construction permits substantial expansion and contraction of the absorber material during vaporization and absorption without generating voids which would interfere with heat transfer.

Greiner, Leonard (2853-A Hickory Pl., Costa Mesa, CA 92626)

1984-01-01T23:59:59.000Z

169

Chemical heat pump  

DOE Patents (OSTI)

A chemical heat pump system is disclosed for use in heating and cooling structures such as residences or commercial buildings. The system is particularly adapted to utilizing solar energy, but also increases the efficiency of other forms of thermal energy when solar energy is not available. When solar energy is not available for relatively short periods of time, the heat storage capacity of the chemical heat pump is utilized to heat the structure, as during nighttime hours. The design also permits home heating from solar energy when the sun is shining. The entire system may be conveniently rooftop located. In order to facilitate installation on existing structures, the absorber and vaporizer portions of the system may each be designed as flat, thin wall, thin pan vessels which materially increase the surface area available for heat transfer. In addition, this thin, flat configuration of the absorber and its thin walled (and therefore relatively flexible) construction permits substantial expansion and contraction of the absorber material during vaporization and absorption without generating voids which would interfere with heat transfer.

Greiner, Leonard (2853-A Hickory Pl., Costa Mesa, CA 92626)

1981-01-01T23:59:59.000Z

170

Chemical heat pump  

DOE Patents (OSTI)

A chemical heat pump system is disclosed for use in heating and cooling structures such as residences or commercial buildings. The system is particularly adapted to utilizing solar energy, but also increases the efficiency of other forms of thermal energy when solar energy is not available. When solar energy is not available for relatively short periods of time, the heat storage capacity of the chemical heat pump is utilized to heat the structure, as during nighttime hours. The design also permits home heating from solar energy when the sun is shining. The entire system may be conveniently rooftop located. In order to facilitate installation on existing structures, the absorber and vaporizer portions of the system may each be designed as flat, thin wall, thin pan vessels which materially increase the surface area available for heat transfer. In addition, this thin, flat configuration of the absorber and its thin walled (and therefore relatively flexible) construction permits substantial expansion and contraction of the absorber material during vaporization and absorption without generating voids which would interfere with heat transfer.

Greiner, Leonard (2853-A Hickory Pl., Costa Mesa, CA 92626)

1984-01-01T23:59:59.000Z

171

Heat pump apparatus  

DOE Patents (OSTI)

A heat pump apparatus including a compact arrangement of individual tubular reactors containing hydride-dehydride beds in opposite end sections, each pair of beds in each reactor being operable by sequential and coordinated treatment with a plurality of heat transfer fluids in a plurality of processing stages, and first and second valves located adjacent the reactor end sections with rotatable members having multiple ports and associated portions for separating the hydride beds at each of the end sections into groups and for simultaneously directing a plurality of heat transfer fluids to the different groups. As heat is being generated by a group of beds, others are being regenerated so that heat is continuously available for space heating. As each of the processing stages is completed for a hydride bed or group of beds, each valve member is rotated causing the heat transfer fluid for the heat processing stage to be directed to that bed or group of beds. Each of the end sections are arranged to form a closed perimeter and the valve member may be rotated repeatedly about the perimeter to provide a continuous operation. Both valves are driven by a common motor to provide a coordinated treatment of beds in the same reactors. The heat pump apparatus is particularly suitable for the utilization of thermal energy supplied by solar collectors and concentrators but may be used with any source of heat, including a source of low-grade heat.

Nelson, Paul A. (Wheaton, IL); Horowitz, Jeffrey S. (Woodridge, IL)

1983-01-01T23:59:59.000Z

172

Microhydropower Turbines, Pumps, and Waterwheels  

Energy.gov (U.S. Department of Energy (DOE))

A microhydropower system needs a turbine, pump, or waterwheel to transform the energy of flowing water into rotational energy, which is then converted into electricity.

173

Heat Pumps | Department of Energy  

NLE Websites -- All DOE Office Websites (Extended Search)

existing heat contained within the earth -- a clean, reliable, and renewable source of energy. In moderate climates, heat pumps can be an energy-efficient alternative to furnaces...

174

Geothermal heat pump analysis article  

U.S. Energy Information Administration (EIA)

heat pump transfers heat from the ground or ground water to provide space heating. In the summer, the heat transfer process is reversed; the ground or groundwater

175

Work plan, AP-102 mixer pump removal and pump replacement  

DOE Green Energy (OSTI)

The objective of this work plan is to plan the steps and estimate the costs required to remove the failed AP-102 mixer pump, and to plan and estimate the cost of the necessary design and specification work required to order a new, but modified, mixer pump including the pump and pump pit energy absorbing design. The main hardware required for the removal of the mixer is as follows: a flexible receiver and blast shield; a metal container for the pulled mixer pump; and a trailer and strongback to haul and manipulate the container. Additionally: a gamma scanning device will be needed to detect the radioactivity emanating from the mixer as it is pulled from the tank; a water spray system will be required to remove tank waste from the surface of the mixer as it is pulled from the AP-102 tank; and a lifting yoke to lift the mixer from the pump pit (the SY-101 Mixer Lifting Yoke will be used). A ``green house`` will have to be erected over the AP-102 pump pit and an experienced Hoisting and Rigging crew must be assembled and trained in mixer pump removal methods before the actual removal is undertaken.

Jimenez, R.F.

1994-09-01T23:59:59.000Z

176

LMR (liquid metal reactor) centrifugal pump coastdowns  

Science Conference Proceedings (OSTI)

A centrifugal pump model which describes the interrelationships of the pump discharge flowrate, pump speed, shaft torque and dynamic head has been implemented based upon existing models. Specifically, the pump model is based upon the dimensionless-homologous pump theory of Wylie and Streeter. Given data from a representative pump, homologous theory allows one to predict the transient characteristics of similarly sized pumps. This homologous pump model has been implemented into both the one-dimensional SASSYS-1 systems analysis code and the three-dimensional COMMIX-1A code. Comparisons have been made both against other pump models (CRBR) and actual pump coastdown data (EBR-II and FFTF). Agreement with this homologous pump model has been excellent. Additionally, these comparisons indicate the validity of applying the medium size pump data of Wylie and Streeter to a range of typical LMR centrifugal pumps.

Dunn, F.E.; Malloy, D.J.

1987-01-01T23:59:59.000Z

177

SOLAR PUMPED LASER MICROTHRUSTER  

DOE Green Energy (OSTI)

The development of microsatellites requires the development of engines to modify their orbit. It is natural to use solar energy to drive such engines. For an unlimited energy source the optimal thruster must use a minimal amount of expendable material to minimize launch costs. This requires the ejected material to have the maximal velocity and, hence, the ejected atoms must be as light as possible and be ejected by as high an energy density source as possible. Such a propulsion can be induced by pulses from an ultra-short laser. The ultra-short laser provides the high-energy concentration and high-ejected velocity. We suggest a microthruster system comprised of an inflatable solar concentrator, a solar panel, and a diode-pumped fiber laser. We will describe the system design and give weight estimates.

Rubenchik, A M; Beach, R; Dawson, J; Siders, C W

2010-02-05T23:59:59.000Z

178

Dual source heat pump  

DOE Patents (OSTI)

What is disclosed is a heat pump apparatus for conditioning a fluid characterized by a fluid handler and path for circulating the fluid in heat exchange relationship with a refrigerant fluid; at least two refrigerant heat exchangers, one for effecting heat exchange with the fluid and a second for effecting heat exchange between refrigerant and a heat exchange fluid and the ambient air; a compressor for efficiently compressing the refrigerant; at least one throttling valve for throttling liquid refrigerant; a refrigerant circuit; refrigerant; a source of heat exchange fluid; heat exchange fluid circulating device and heat exchange fluid circuit for circulating the heat exchange fluid in heat exchange relationship with the refrigerant; and valves or switches for selecting the heat exchangers and direction of flow of the refrigerant therethrough for selecting a particular mode of operation. The heat exchange fluid provides energy for defrosting the second heat exchanger when operating in the air source mode and also provides a alternate source of heat.

Ecker, Amir L. (Dallas, TX); Pietsch, Joseph A. (Dallas, TX)

1982-01-01T23:59:59.000Z

179

CONTROL ROD FOR A NUCLEAR REACTOR AND METHOD OF PREPARATION  

DOE Patents (OSTI)

BS>An improved control rod is presented for a nuclear reactor. This control rod is comprised of a rare earth metal oxide or rare earth metal carbide such as gadolinium oxide or gadolinium carbide, uniformly distributed in a metal matrix having a low cross sectional area of absorption for thermal neutrons, such as aluminum, beryllium, and zirconium.

Hausner, H.H.

1958-12-30T23:59:59.000Z

180

EOCR CONTROL ROD AND DRIVER FUEL HYDRAULIC TESTS  

SciTech Connect

The EOCR prototype control rod, control rod drive, and driver fuel assembly were extensively tested in 500 deg F Santowax and 132 deg F water. These tests not only established the operating characteristics of these assemblies but also revealed a number of deficiencies in the various components. The modifications required were tested to establish the satisfactory performance of the modified components. Flow versus pressure differential measurements were performed on the driver fuel and the control rod. These measuremerts were also performed on various sized orifices in both assemblies to facilitate final orifice sizing when the final physics and heat transfer calculations have been completed. Scram insertion time curves were obtained for a variety of control rod configurations and test conditions. These curves not only established the scram insertion reliability of the control rod but also provided the basis for performing a control rod force analysis. Included are descriptions of the control rod, control rod drive, and driver fuel assembly together with descriptions of their method of operation. (auth)

Harrison, L.J.

1962-10-19T23:59:59.000Z

Note: This page contains sample records for the topic "rod pumps view" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


181

Packed rod neutron shield for fast nuclear reactors  

DOE Patents (OSTI)

A fast neutron nuclear reactor including a core and a plurality of vertically oriented neutron shield assemblies surrounding the core. Each assembly includes closely packed cylindrical rods within a polygonal metallic duct. The shield assemblies are less susceptible to thermal stresses and are less massive than solid shield assemblies, and are cooled by liquid coolant flow through interstices among the rods and duct.

Eck, John E. (Hempfield Township, Westmoreland County, PA); Kasberg, Alvin H. (Murrysville, PA)

1978-01-01T23:59:59.000Z

182

Hot Cell Examination of Oconee-2 Fuel Rods  

Science Conference Proceedings (OSTI)

A comprehensive examination of four unfailed fuel rods was undertaken at the Babcock & Wilcox hot cells in Lynchburg, Virginia, to establish the factors responsible for the failure of "sister" rods at the Oconee-2 reactor during cycle 5 operation. Results indicate that high local oxidation and hydriding of the Zircaloy cladding were important factors.

1991-10-01T23:59:59.000Z

183

Threshold values of autoresonant pumping  

E-Print Network (OSTI)

There exists stable growing solution of primary resonant equation for a autoresonant pumping with decreasing amplitude. The primary term of asymptotics is $O(\\sqrt{t})$ and does not depend on order of the force from some interval. We point to the interval for the amplitude of the pumping for which the growing stable solution exists.

O. M. Kiselev

2013-03-19T23:59:59.000Z

184

Heat Pumps in Distillation Processes  

Science Conference Proceedings (OSTI)

Both new and retrofit heat pump installations are often economically justifiable for distillation columns with a temperature differential of 50 degrees F or less. However, this study reveals that the near-term demand for electric heat pumps in petroleum and chemical distillation processes appears very limited.

1984-08-01T23:59:59.000Z

185

Energy Basics: Ductless, Mini-Split Heat Pumps  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Systems Air-Source Heat Pumps Ductless Mini-Split Heat Pumps Absorption Heat Pumps Geothermal Heat Pumps Supporting Equipment for Heating & Cooling Systems Water Heating...

186

Nuclear reactor shutdown control rod assembly  

DOE Patents (OSTI)

A temperature responsive, self-actuated nuclear reactor shutdown control rod assembly 10. The upper end 18 of a lower drive line 17 fits within the lower end of an upper drive line 12. The lower end (not shown) of the lower drive line 17 is connected to a neutron absorber. During normal temperature conditions the lower drive line 17 is supported by detent means 22,26. When an overtemperature condition occurs thermal actuation means 34 urges ring 26 upwardly sufficiently to allow balls 22 to move radially outwardly thereby allowing lower drive line 17 to move downwardly toward the core of the nuclear reactor resulting in automatic reduction of the reactor powder.

Bilibin, Konstantin (North Hollywood, CA)

1988-01-01T23:59:59.000Z

187

Chirped-Pulse Amplification with flashlamp-pumped Ti:Sapphire amplifiers  

Science Conference Proceedings (OSTI)

Ti:Sapphire (Ti:Al{sub 2}O{sub 3}) amplifier stages are typically pumped with Q-switched Nd:YAG lasers doubled to 532 nm because of good spectral overlap, short temporal width, high repetition rate (i.e., 10 Hz to > 5 kHz) and the problems associated with flashlamp pumping a material with a relatively short upper state lifetime. Limitations to this pumping method arise due to the 1 to 1.5 joule/pulse ceiling found in most commercial high rep rate Nd:YAG lasers. The availability of high quality, large aperture Ti:Sapphire rods has made the flashlamp-pumping scheme an attractive option. The excellent thermal properties of Ti:Sapphire also allows an amplifier to be operated at high repetition rates. The front end of our laser relies on Chirped Pulse Amplification (CPA) in laser pumped Ti:Sapphire to generate 55 NJ, 90 fsec pulses at a 10 Hz rate. We report the use of a flashlamp pumped Ti:Sapphire head to further amplify the output of our system, producing 90 fsec, 250 NJ pulses at 5 Hz. The excellent output spatial profile yields a near diffraction-limited 5 {mu}m spot size and peak irradiance in excess of 5 {times} 10{sup 18} W/cm{sup 2}.

Bonlie, J.D.; White, W.E.; Price, D.F.; Reitze, D.H.

1994-01-01T23:59:59.000Z

188

Fretting wear behaviors of a dual-cooled nuclear fuel rod under a simulated rod vibration  

Science Conference Proceedings (OSTI)

Recently, a dual-cooled fuel (i.e., annular fuel) that is compatible with current operating PWR plants has been proposed in order to realize both a considerable amount of power uprating and an increase of safety margins. As the design concept should be compatible with current operating PWR plants, however, it shows a narrow gap between the fuel rods when compared with current solid nuclear fuel arrays and needs to modify the spacer grid shapes and their positions. In this study, fretting wear tests have been performed to evaluate the wear resistance of a dual-cooled fuel by using a proposed spring and dimple of spacer grids that have a cantilever type and hemispherical shape, respectively. As a result, the wear volume of the spring specimen gradually increases as the contact condition is changed from a certain gap, just contact to positive force. However, in the dimple specimen, just contact condition shows a large wear volume. In addition, a circular rod motion at upper region of contact surface is gradually increased and its diametric size depends on the wear depth increase. Based on the test results, the fretting wear resistance of the proposed spring and dimple is analyzed by comparing the wear measurement results and rod motion in detail.

Lee, Young-Ho; Kim, Hyung-Kyu; Kang, Heung-Seok; Yoon, Kyung-Ho; Kim, Jae-Yong; Lee, Kang-Hee [Innovative Nuclear Fuel Division, Korea Atomic Energy Research Institute 1045 Daedeokdaero, Yuseong, Daejeon, 305-353 (Korea, Republic of)

2012-06-06T23:59:59.000Z

189

Geothermal Heat Pumps | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Geothermal Heat Pumps Geothermal Heat Pumps August 19, 2013 - 11:12am Addthis Geothermal heat pumps use the constant temperature of the earth as an exchange medium for heat....

190

Available Technologies: Efflux Pumps to Increase Microbial ...  

Efflux Pumps to Increase Microbial Tolerance and Biofuel Production EIB-2845. ... to determining the most effective pumps for any given host and target ...

191

Course Overview Pump Systems Matter Optimization | Department...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Course Overview Pump Systems Matter Optimization Attendees of the "Pump Systems Optimization" one-day course will gain valuable new skills to help them improve...

192

Laboratory Equipment - Vacuubrand PC101 Vacuum Pump  

Science Conference Proceedings (OSTI)

Vacuubrand PC101 Vacuum Pump. ... pumping speed: 1.7/2.0 m 3 -h -1; Ultimate ... outlet: 2 bar; Permitted ambient temperature storage/operation: -10C ...

2012-07-11T23:59:59.000Z

193

Efficiency of unitary heat pumps  

SciTech Connect

The efficiencies of approximately 500 unitary heat pumps, from 30 different manufacturers, certified by the Air Conditioning and Refrigeration Institute (ARI) were examined. The certified units account for about 90% of all unitary heat pumps manufactured in the U.S. with a rated cooling capacity below 135,000 Btu/hr, and thus represent a comprehensive data file of the efficiencies of unitary heat pumps offered for sale in the U.S. A computer was used to group the heat pumps according to type and capacity, and to calculate their coefficients of performance (COP) using the data contained in ARI current Directory (April 1 to July 31, 1973) of Certified Unitary Heat Pumps. The results show that the COP of the heat pumps varied from a low of 1.5 to a high of 3.15 or a factor of 2 between the lowest and the highest efficiency, and that the average COP was 2.1 in cooling and 2.4 in heating. The variations of COP with heat pump size, type, manufacturer and outdoor temperature are presented.

Nwude, J.K.; Roman, A.J.

1973-11-01T23:59:59.000Z

194

High average power diode pumped solid state lasers for CALIOPE  

Science Conference Proceedings (OSTI)

Diode pumping of solid state media offers the opportunity for very low maintenance, high efficiency, and compact laser systems. For remote sensing, such lasers may be used to pump tunable non-linear sources, or if tunable themselves, act directly or through harmonic crystals as the probe. The needs of long range remote sensing missions require laser performance in the several watts to kilowatts range. At these power performance levels, more advanced thermal management technologies are required for the diode pumps. The solid state laser design must now address a variety of issues arising from the thermal loads, including fracture limits, induced lensing and aberrations, induced birefringence, and laser cavity optical component performance degradation with average power loading. In order to highlight the design trade-offs involved in addressing the above issues, a variety of existing average power laser systems are briefly described. Included are two systems based on Spectra Diode Laboratory`s water impingement cooled diode packages: a two times diffraction limited, 200 watt average power, 200 Hz multi-rod laser/amplifier by Fibertek, and TRW`s 100 watt, 100 Hz, phase conjugated amplifier. The authors also present two laser systems built at Lawrence Livermore National Laboratory (LLNL) based on their more aggressive diode bar cooling package, which uses microchannel cooler technology capable of 100% duty factor operation. They then present the design of LLNL`s first generation OPO pump laser for remote sensing. This system is specified to run at 100 Hz, 20 nsec pulses each with 300 mJ, less than two times diffraction limited, and with a stable single longitudinal mode. The performance of the first testbed version will be presented. The authors conclude with directions their group is pursuing to advance average power lasers. This includes average power electro-optics, low heat load lasing media, and heat capacity lasers.

Comaskey, B.; Halpin, J.; Moran, B.

1994-07-01T23:59:59.000Z

195

Analysis of mercury diffusion pumps  

SciTech Connect

Several mercury diffusion pump stages in the Tritium Purification process at the Savannah River Site (SRS) have been removed from service for scheduled preventive maintenance. These stages have been examined to determine if failure has occurred. Evidence of fatigue around the flange portion of the pump has been seen. In addition, erosion and cavitation inside the throat of the venturi tube and corrosion on the other surface of the venturi tube has been observed. Several measures are being examined in an attempt to improve the performance of these pumps. These measures, as well as the noted observations, are described. 4 refs.

Dunn, K.A.

1991-12-31T23:59:59.000Z

196

Analysis of mercury diffusion pumps  

SciTech Connect

Several mercury diffusion pump stages in the Tritium Purification process at the Savannah River Site (SRS) have been removed from service for scheduled preventive maintenance. These stages have been examined to determine if failure has occurred. Evidence of fatigue around the flange portion of the pump has been seen. In addition, erosion and cavitation inside the throat of the venturi tube and corrosion on the other surface of the venturi tube has been observed. Several measures are being examined in an attempt to improve the performance of these pumps. These measures, as well as the noted observations, are described. 4 refs.

Dunn, K.A.

1991-01-01T23:59:59.000Z

197

Geothermal Heat Pumps Tech Update  

Science Conference Proceedings (OSTI)

Geothermal heat pumps (GHPs; a.k.a. Ground Source Heat Pumps or GHPSM) can successfully compete with air source heat pump in performance due to their use of the ground or groundwater as a heat source or heat sink. In 1993, the U.S. Environmental Protection Agency labeled GHPs as the most energy efficient, cost-effective and environmentally clean space conditioning technology available. The U.S. Department of Energy, Federal Energy Management Program attested that GHPs are a highly efficient method of ...

2008-12-19T23:59:59.000Z

198

Hot cell examination of Oconee-2 fuel rods  

SciTech Connect

Four non-failed fuel rods from Duke Power Company's Oconee-2 reactor were examined in the B W hot cells. The purpose of the program was to determine the cause(s) of failure in sister'' rods located adjacent to the assembly instrumentation tube, but which were thought to be too badly damaged to provide useful information. The rods had operated at relatively high power levels during their first cycle, which appeared to be a contributing factor to the failures. Non-destructive examinations included visual and eddy-current examinations, gamma-scanning and rod growth measurements. Following rod puncture and plenum gas analysis, several rod sections were destructively examined using visual techniques, metallography and scanning electron microscopy. The major findings from the examination were regions of greater than expected cladding OD oxidation and hydriding in regions with highest cladding temperature. Highly localized oxidation was found nearest the fuel assembly central instrument tube. The extensive hydriding was associated with fuel column gaps which acted as low-temperature sinks for hydrogen diffusion. Based on the findings in the sound rods, two failure mechanisms were identified that could have resulted in cladding failure. These were rapid through-wall oxidation or massive hydriding due to local temperature troughs that acted to concentrate hydrogen generated by rapid corrosion. 2 refs., 3 figs., 5 tabs.

Beauregard, R.J.; Mayer, J.T.; Pyecha, T.D.; Papazoglou, T.P.

1991-09-01T23:59:59.000Z

199

Heat Pump System Basics | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Heat Pump System Basics Heat Pump System Basics Heat Pump System Basics August 19, 2013 - 11:02am Addthis Like a refrigerator, heat pumps use electricity to move heat from a cool space into a warm space, making the cool space cooler and the warm space warmer. Because they move heat rather than generate heat, heat pumps can provide up to four times the amount of energy they consume. Air-Source Heat Pump Transfers heat between the inside of a building and the outside air. Ductless Mini-Split Heat Pump Ductless versions of air-source heat pumps. Absorption Heat Pump Uses heat as its energy source. Geothermal Heat Pumps Use the constant temperature of the earth as the exchange medium instead of the outside air temperature. Addthis Related Articles A heat pump can provide an alternative to using your air conditioner. | Photo courtesy of iStockPhoto/LordRunar.

200

COAXIAL CONTROL ROD DRIVE MECHANISM FOR NEUTRONIC REACTORS  

DOE Patents (OSTI)

A drive mechanism is presented for the control rod or a nuclear reactor. In this device the control rod is coupled to a drive shaft which extends coaxially through the rotor of an electric motor for relative rotation with respect thereto. A gear reduction mehanism is coupled between the rotor and the drive shaft to convert the rotary motion of the motor into linear motion of the shaft with a comparatively great reduction in speed, thereby providing relatively glow linear movement of the shaft and control rod for control purposes.

Fox, R.J.; Oakes, L.C.

1959-04-14T23:59:59.000Z

Note: This page contains sample records for the topic "rod pumps view" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


201

System for fuel rod removal from a reactor module  

DOE Patents (OSTI)

A robotic system for remote underwater withdrawal of the fuel rods from fuel modules of a light water breeder reactor includes a collet/grapple assembly for gripping and removing fuel rods in each module, which is positioned by use of a winch and a radial support means attached to a vertical support tube which is mounted over the fuel module. A programmable logic controller in conjunction with a microcomputer, provides control for the accurate positioning and pulling force of the rod grapple assembly. Closed circuit television cameras are provided which aid in operator interface with the robotic system.

Matchett, Richard L. (Bethel Park, PA); Roof, David R. (North Huntingdon, PA); Kikta, Thomas J. (Pittsburgh, PA); Wilczynski, Rosemarie (McKees Rocks, PA); Nilsen, Roy J. (Pittsburgh, PA); Bacvinskas, William S. (Bethel Park, PA); Fodor, George (Pittsburgh, PA)

1990-01-01T23:59:59.000Z

202

System for fuel rod removal from a reactor module  

DOE Patents (OSTI)

A robotic system for remote underwater withdrawal of the fuel rods from fuel modules of a light water breeder reactor includes a collet/grapple assembly for gripping and removing fuel rods in each module, which is positioned by use of a winch and a radial support means attached to a vertical support tube which is mounted over the fuel module. A programmable logic controller in conjunction with a microcomputer, provides control for the accurate positioning and pulling force of the rod grapple assembly. Closed circuit television cameras are provided which aid in operator interface with the robotic system. 7 figs.

Matchett, R.L.; Fodor, G.; Kikta, T.J.; Bacvinsicas, W.S.; Roof, D.R.; Nilsen, R.J.; Wilczynski, R.

1988-07-28T23:59:59.000Z

203

Hot Cell Examination of Hatch 1 and 2 Fuel Rods  

Science Conference Proceedings (OSTI)

Two sound GE13 fuel rods were examined in the GE Hitachi Vallecitos Nuclear Center hot cells. The rodsone each from the Hatch 1 and Hatch 2 reactorswere retrieved to characterize their performance over three cycles relative to the presence of thick tenacious crud and a common cladding material lot that experienced corrosion-related failures in Browns Ferry 2, which is documented in EPRI report 1013421. The rods were retrieved along with five other rods associated with the Hatch 1 Cycle 21 duty-related fa...

2009-06-30T23:59:59.000Z

204

User_ViewRecords  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

User Records User Records © 2011 SuccessFactors, Inc. - 1 - SuccessFactors Learning Confidential. All rights reserved. Job Aid: Viewing User Records Purpose The purpose of this job aid is to guide users through the step-by-step process of viewing their records. Each task demonstrates viewing of different records. Task A. View To-Do List Enter the web address (URL) of the user application into your browser Address field and press the Enter key. Enter your user ID in the User ID textbox. Enter your password in the Password textbox. Click Sign In. View To-Do List (filter, view) 7 Steps Task A View Completed Work 8 Steps Task B View Curriculum Status and Details 11 Steps Task C 3 3 1 2 2 1 SuccessFactors Learning v 6.4 User Job Aid Viewing User Records

205

Remaining Sites Verification Package for 132-DR-1, 1608-DR Effluent Pumping Station, Waste Site Reclassification Form 2005-035  

SciTech Connect

Radiological characterization, decommissioning and demolition of the 132-DR-1 site, 1608-DR Effluent Pumping Station was performed in 1987. The current site conditions achieve the remedial action objectives and the corresponding remedial action goals established in the Remaining Sites ROD. Residual concentrations support future land uses that can be represented by a rural-residential scenario and pose no threat to groundwater or the Columbia River based on RESRAD modeling.

R. A. Carlson

2005-09-22T23:59:59.000Z

206

FEMP--Geothermal Heat Pumps  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

heat pump-like an air conditioner or refrigera- heat pump-like an air conditioner or refrigera- tor-moves heat from one place to another. In the summer, a geothermal heat pump (GHP) operating in a cooling mode lowers indoor temperatures by transferring heat from inside a building to the ground outside or below it. Unlike an air condition- er, though, a heat pump's process can be reversed. In the winter, a GHP extracts heat from the ground and transfers it inside. Also, the GHP can use waste heat from summer air-conditioning to provide virtually free hot-water heating. The energy value of the heat moved is typically more than three times the electricity used in the transfer process. GHPs are efficient and require no backup heat because the earth stays at a relatively moderate temperature throughout the year.

207

Torpid Phenomena and Pump Oils  

Science Conference Proceedings (OSTI)

The spasmodic fluctuations of pressure which were formerly prevalent in condensation pumps when operated with oil fillings are less often encountered today because high-gradient heaters have been generally adopted to counter this propensity. High-gradient heating

Kenneth Hickman

1972-01-01T23:59:59.000Z

208

FEMP--Geothermal Heat Pumps  

NLE Websites -- All DOE Office Websites (Extended Search)

conditioner or refrigera- tor-moves heat from one place to another. In the summer, a geothermal heat pump (GHP) operating in a cooling mode lowers indoor temperatures by...

209

An electrically pumped germanium laser  

E-Print Network (OSTI)

Electrically pumped lasing from Germanium-on-Silicon pnn heterojunction diode structures is demonstrated. Room temperature multimode laser with 1mW output power is measured. Phosphorous doping in Germanium at a concentration ...

Cai, Yan

210

Absorption Heat Pump Water Heater  

NLE Websites -- All DOE Office Websites (Extended Search)

Absorption Heat Pump Water Heater Absorption Heat Pump Water Heater Kyle Gluesenkamp Building Equipment Group, ETSD gluesenkampk@ornl.gov 865-241-2952 April 3, 2013 CRADA - GE Development of High Performance Residential Gas Water Heater Image courtesy John Wilkes 2 | Building Technologies Office eere.energy.gov Purpose & Objectives Problem Statement: Absorption technology could greatly boost water heater efficiency, but faces barriers of high first cost and working fluid challenges. Impact of Project: Energy factor of gas storage water

211

Absorption Heat Pump Water Heater  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Absorption Heat Pump Water Heater Absorption Heat Pump Water Heater Kyle Gluesenkamp Building Equipment Group, ETSD gluesenkampk@ornl.gov 865-241-2952 April 3, 2013 CRADA - GE Development of High Performance Residential Gas Water Heater Image courtesy John Wilkes 2 | Building Technologies Office eere.energy.gov Purpose & Objectives Problem Statement: Absorption technology could greatly boost water heater efficiency, but faces barriers of high first cost and working fluid challenges. Impact of Project: Energy factor of gas storage water

212

Pump control system for windmills  

DOE Patents (OSTI)

A windmill control system having lever means, for varying length of stroke of the pump piston, and a control means, responsive to the velocity of the wind to operate the lever means to vary the length of stroke and hence the effective displacement of the pump in accordance with available wind energy, with the control means having a sensing member separate from the windmill disposed in the wind and displaceable thereby in accordance with wind velocity.

Avery, Don E. (45-437 Akimala St., Honolulu, HI 96744)

1983-01-01T23:59:59.000Z

213

Hybrid Geothermal Heat Pump Systems  

Science Conference Proceedings (OSTI)

Hybrid geothermal heat pump systems offer many of the benefits of full geothermal systems but at lower installed costs. A hybrid geothermal system combines elements of a conventional water loop heat pump system in order to reduce the geothermal loop heat exchanger costs, which are probably the largest cost element of a geothermal system. These hybrid systems have been used successfully where sufficient ground space to install large heat exchangers for full geothermal options was unavailable, or where the...

2009-12-21T23:59:59.000Z

214

Verti Jack Pumping Unit evaluation  

Science Conference Proceedings (OSTI)

The Verti Jack Pumping Unit was tested primarily to establish the energy comsumption efficiency of the unit as compared with that of conventional pumping unit. Before the unit was field tested, extensive static testing was performed to determine the effect of the counterbalance system throughout the operational cycle. The field test included comparing the performance of the Verti Jack Unit and conventional pump jacks - a Bethlehem 16 and Cabot 25 pumping unit. The Verti Jack unit was operated at four different pumping conditions. The Verti Jack unit peformed satisfactorily during the testing. Only minor problems that could not be attributed to the design or operation of the unit were encountered. Changing the stroke length was difficult in the field, but such operational problems were expected in operating the first phototype and can be corrected on future models. During the higher pumping rate tests of the Verti Jack unit, the well ceased to deliver fluid quantities at rates adequate to the pumping rate. These data are shown in table 8. Therefore, evaluation data are based on theoretical pump performance and are presented in table 9. The data show that the Verti Jack is more efficient than the conventional units tested. The most direct comparison was the Verti Jack test at 36-inch stroke and 12 1/2 strokes per minute versus the Cabot unit at 37-inch stroke and 12 strokes per minute. In the comparison the Verti Jack operated about 24 percent more efficiently than the Cabot unit. Comparing the summation of all Verti Jack tests with that of all conventional unit tests, the Verti Jack operated about 15 percent more efficiently. Compared to the Cabot unit only, the Verti Jack was about 17 percent more energy efficient. 13 figs., 12 tabs.

Porter, R.; Spence, K.

1985-11-01T23:59:59.000Z

215

Optically pumped polarized ion sources  

SciTech Connect

Polarization transfer collisions between protons, atomic hydrogen, or deuterium and optically pumped alkali-metal vapour are implemented in the high current optically pumped polarized ion source (OPPIS) and the laser driven source (LDS) of nuclear polarized atoms for target applications. The OPPIS technique overcomes the limitations on intensity of the conventional atomic beam source technique and meets the requirements of the new generation of polarization experiments at multi-GeV accelerators and colliders. 17 refs., 3 figs.

Zelenski, A.N.

1995-12-31T23:59:59.000Z

216

Mechanical drive for blood pump  

DOE Patents (OSTI)

This patent relates to a highly efficient blood pump to be used as a replacement for a ventricle of the human heart to restore people disabled by heart disease. The mechanical drive of the present invention is designed to operate in conjunction with a thermoelectric converter power source. The mechanical drive system essentially converts the output of a rotary power into pulsatile motion so that the power demand from the thermoelectric converter remains essentially constant while the blood pump output is pulsed. (auth)

Bifano, N.J.; Pouchot, W.D.

1975-07-29T23:59:59.000Z

217

Flow assurance and multiphase pumping  

E-Print Network (OSTI)

A robust understanding and planning of production enhancement and flow assurance is required as petroleum E&P activities are targeting deepwaters and long distances. Different flow assurance issues and their solutions are put together in this work. The use of multiphase pumps as a flow assurance solution is emphasized. Multiphase pumping aids flow assurance in different ways. However, the problem causing most concern is sand erosion. This work involved a detection-based sand monitoring method. Our objectives are to investigate the reliability of an acoustic sand detector and analyze the feasibility of gel injection as a method to mitigate sand erosion. Use of a sand detector coupled with twin-screw pumps is studied under varying flow conditions. The feasibility of gel injection to reduce slip and transport produced solids through twin-screw pump is investigated. A unique full-scale laboratory with multiphase pumps was utilized to carry out the experimental tests. The test results indicate that acoustic sand detection works in a narrow window around the calibration signature. An empirical correlation for predicting the twin-screw pump performance with viscous fluids was developed. It shows good agreement in the practical operational limits 50% to 100% speed. The results indicate that viscous gel injection should be an effective erosion mitigation approach as it reduces slip, the principle cause of erosive wear. To correlate the performance of viscous fluid injection to hydroabrasive wear, further experimental investigation is needed.

Nikhar, Hemant G.

2006-12-01T23:59:59.000Z

218

Results of the PBF/LOFT Lead Rod Test Series  

SciTech Connect

The PBF/LOFT Lead Rod (PBF/LLR) Test Series consisted of four sequential, nuclear blowdown experiments (Test LLR-3, LLR-5, LLR-4, and LLR-4A). The primary objective of the test series was to evaluate the extent of mechanical deformation that would be expected to occur to low pressure (0.1 MPa) light water reactor design fuel rods subjected to a series of nuclear blowdown tests, and to determine if subjecting deformed fuel rods to subsequent testing would result in rod failure. The extent of mechanical deformation (buckling, collapse, or waisting of the cladding) was evaluated by comparison of cladding temperatue versus system pressure response with out-of-pile experimental data and by posttest visual examinations and cladding diametral measurements.

Varacalle, Jr, D J; Garner, R W; Hobbins, R R

1979-01-01T23:59:59.000Z

219

Semiconductor Quantum Rods as Single Molecule Fluorescent Biological Labels  

E-Print Network (OSTI)

shape-controlled colloidal CdSe quantum rods. Nano Lettersdiffusion of peptide-coated CdSe/CdS/ZnS nanorods studied byCdS/ZnS shells on colloidal CdSe nanorods. Journal Of The

2006-01-01T23:59:59.000Z

220

Control and shim rod arrangement with moveable plugs  

DOE Patents (OSTI)

This invention relates to a control and shim rod arrangement for a nuclear reactor. A second shield of concrete completely encloses a biological shield. Moveable plugs are mounted in said shield.

Smith, Montford H. (Richland, WA)

1976-03-30T23:59:59.000Z

Note: This page contains sample records for the topic "rod pumps view" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


221

Transactional process views  

Science Conference Proceedings (OSTI)

To enable effective interorganisational collaborations, process providers have to disclose relevant parts of their local business processes in public process views. A public process view has to be consistent with the underlying private process. Local ...

Rik Eshuis; Jochem Vonk; Paul Grefen

2011-10-01T23:59:59.000Z

222

Double-clad nuclear-fuel safety rod  

DOE Patents (OSTI)

A device for shutting down a nuclear reactor during an undercooling or overpower event, whether or not the reactor's scram system operates properly. This is accomplished by double-clad fuel safety rods positioned at various locations throughout the reactor core, wherein melting of a secondary internal cladding of the rod allows the fuel column therein to shift from the reactor core to place the reactor in a subcritical condition.

McCarthy, W.H.; Atcheson, D.B.

1981-12-30T23:59:59.000Z

223

Noncontact Laser Scanner for Fuel Rod Defect and Wear Measurements  

Science Conference Proceedings (OSTI)

Wear of fuel rod cladding due to mechanical fretting with grid springs and dimples may lead to fuel failures. This is known throughout the nuclear industry as grid-to-rod fretting (GTRF) and is currently the leading fuel failure mechanism in the U.S. pressurized water reactor (PWR) fleet. Utilities and fuel inspection service companies continue to develop advanced technologies to accurately measure fretting wear in order to determine the margin to GTRF-induced fuel failures, while minimizing impacts ...

2013-05-08T23:59:59.000Z

224

Apparatus for injection casting metallic nuclear energy fuel rods  

DOE Patents (OSTI)

Molds for making metallic nuclear fuel rods are provided which present reduced risks to the environment by reducing radioactive waste. In one embodiment, the mold is consumable with the fuel rod, and in another embodiment, part of the mold can be re-used. Several molds can be arranged together in a cascaded manner, if desired, or several long cavities can be integrated in a monolithic multiple cavity re-usable mold.

Seidel, Bobby R. (Idaho Falls, ID); Tracy, Donald B. (Firth, ID); Griffiths, Vernon (Butte, MT)

1991-01-01T23:59:59.000Z

225

Absorption Heat Pump Basics | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Absorption Heat Pump Basics Absorption Heat Pump Basics Absorption Heat Pump Basics August 19, 2013 - 11:11am Addthis Absorption heat pumps are essentially air-source heat pumps driven not by electricity, but by a heat source such as natural gas, propane, solar-heated water, or geothermal-heated water. Because natural gas is the most common heat source for absorption heat pumps, they are also referred to as gas-fired heat pumps. There are also absorption coolers available that work on the same principal, but are not reversible and cannot serve as a heat source. These are also called gas-fired coolers. How Absorption Heat Pumps Work Residential absorption heat pumps use an ammonia-water absorption cycle to provide heating and cooling. As in a standard heat pump, the refrigerant (in this case, ammonia) is condensed in one coil to release its heat; its

226

Heat Pump Systems | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Pump Systems Pump Systems Heat Pump Systems May 16, 2013 - 5:33pm Addthis A heat pump can provide an alternative to using your air conditioner. | Photo courtesy of iStockPhoto/LordRunar. A heat pump can provide an alternative to using your air conditioner. | Photo courtesy of iStockPhoto/LordRunar. What does this mean for me? Heat pumps can supply heat, cooling, and hot water. Your climate and site will determine the type of heat pump most appropriate for your home. For climates with moderate heating and cooling needs, heat pumps offer an energy-efficient alternative to furnaces and air conditioners. Like your refrigerator, heat pumps use electricity to move heat from a cool space to a warm space, making the cool space cooler and the warm space warmer. During the heating season, heat pumps move heat from the cool outdoors into

227

Absorption Heat Pumps | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Absorption Heat Pumps Absorption Heat Pumps Absorption Heat Pumps June 24, 2012 - 2:11pm Addthis Absorption heat pumps are essentially air-source heat pumps driven not by electricity, but by a heat source such as natural gas, propane, solar-heated water, or geothermal-heated water. Because natural gas is the most common heat source for absorption heat pumps, they are also referred to as gas-fired heat pumps. There are also absorption (or gas-fired) coolers available that work on the same principle. Unlike some absorption heat pumps, however, these are not reversible and cannot serve as a heat source. Residential absorption heat pumps use an ammonia-water absorption cycle to provide heating and cooling. As in a standard heat pump, the refrigerant (in this case, ammonia) is condensed in one coil to release its heat; its

228

Ground Source Heat Pumps | Open Energy Information  

Open Energy Info (EERE)

Ground Source Heat Pumps Ground Source Heat Pumps (Redirected from Geothermal Heat Pumps) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Print PDF Ground Source Heat Pumps Geothermal Technologies There are many types of Geothermal Technologies that take advantage of the earth's heat: Hydrothermal Systems Enhanced Geothermal Systems (EGS) Sedimentary Geothermal Systems Co-Produced Geothermal Systems Geothermal Direct Use Ground Source Heat Pumps GSHP Links Related documents and websites An Information Survival Kit for the Prospective Geothemral Heat Pump Owner List of Heat Pumps Incentives List of Ground Source Heat Pumps Incentives Policy Makers' Guidebook for Geothermal Heating and Cooling Various ways to configure a geothermal heat pump system. (Source: The Geo-Heat Center's Survival Kit for the Prospective Geothemral Heat Pump

229

Tips: Heat Pumps | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Heat Pumps Heat Pumps Tips: Heat Pumps June 24, 2013 - 5:48pm Addthis Heat pumps can be a cost-effective choice in moderate climates, especially if you heat your home with electricity. Heat pumps can be a cost-effective choice in moderate climates, especially if you heat your home with electricity. Heat pumps are the most efficient form of electric heating in moderate climates. Because they move heat rather than generate heat, heat pumps can provide equivalent space conditioning at as little as one quarter of the cost of operating conventional heating or cooling appliances. A heat pump does double duty as a central air conditioner by collecting the heat inside your house and pumping it outside. There are three types of heat pumps: air-to-air, water source, and geothermal. They collect heat from the air, water, or ground outside your

230

Absorption Heat Pumps | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Absorption Heat Pumps Absorption Heat Pumps Absorption Heat Pumps June 24, 2012 - 2:11pm Addthis Absorption heat pumps are essentially air-source heat pumps driven not by electricity, but by a heat source such as natural gas, propane, solar-heated water, or geothermal-heated water. Because natural gas is the most common heat source for absorption heat pumps, they are also referred to as gas-fired heat pumps. There are also absorption (or gas-fired) coolers available that work on the same principle. Unlike some absorption heat pumps, however, these are not reversible and cannot serve as a heat source. Residential absorption heat pumps use an ammonia-water absorption cycle to provide heating and cooling. As in a standard heat pump, the refrigerant (in this case, ammonia) is condensed in one coil to release its heat; its

231

Pump Systems Matter Mission and Vision:  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Pump Systems Matter Mission and Vision: Pump Systems Matter Mission and Vision: Pump Systems Matter(tm) (PSM) places a primary focus on pump systems education and outreach and addresses energy savings and total cost of pump ownership. Vision: Pump Systems Matter initiative assists North American pump users gain a more competitive business advantage through strategic, broad-based energy management and pump system performance optimization. Mission: To provide the marketplace with tools and collaborative opportunities to integrate pump system performance optimization and efficient energy management practices into normal business operations. Essential Elements: * Build awareness of the benefits of systems optimization and pump system life cycle cost at the management, production and technical levels of companies throughout the supply chain.

232

Fission gas release restrictor for breached fuel rod  

DOE Patents (OSTI)

In the event of a breach in the cladding of a rod in an operating liquid metal fast breeder reactor, the rapid release of high-pressure gas from the fission gas plenum may result in a gas blanketing of the breached rod and rods adjacent thereto which impairs the heat transfer to the liquid metal coolant. In order to control the release rate of fission gas in the event of a breached rod, the substantial portion of the conventional fission gas plenum is formed as a gas bottle means which includes a gas pervious means in a small portion thereof. During normal reactor operation, as the fission gas pressure gradually increases, the gas pressure interiorly of and exteriorly of the gas bottle means equalizes. In the event of a breach in the cladding, the gas pervious means in the gas bottle means constitutes a sufficient restriction to the rapid flow of gas therethrough that under maximum design pressure differential conditions, the fission gas flow through the breach will not significantly reduce the heat transfer from the affected rod and adjacent rods to the liquid metal heat transfer fluid flowing therebetween.

Kadambi, N. Prasad (Gaithersburg, MD); Tilbrook, Roger W. (Monroeville, PA); Spencer, Daniel R. (Unity Twp., PA); Schwallie, Ambrose L. (Greensburg, PA)

1986-01-01T23:59:59.000Z

233

Measure Guideline: Replacing Single-Speed Pool Pumps with Variable Speed Pumps for Energy Savings  

Science Conference Proceedings (OSTI)

The report evaluates potential energy savings by replacing traditional single-speed pool pumps with variable speed pool pumps, and provide a basic cost comparison between continued uses of traditional pumps verses new pumps. A simple step-by-step process for inspecting the pool area and installing a new pool pump follows.

Hunt, A.; Easley, S.

2012-05-01T23:59:59.000Z

234

Standard Practice for Electromagnetic (Eddy-Current) Examination of Copper Redraw Rod for Electrical Purposes  

E-Print Network (OSTI)

Standard Practice for Electromagnetic (Eddy-Current) Examination of Copper Redraw Rod for Electrical Purposes

American Society for Testing and Materials. Philadelphia

2009-01-01T23:59:59.000Z

235

Linear motion device and method for inserting and withdrawing control rods  

DOE Patents (OSTI)

A linear motion device, more specifically a control rod drive mechanism (CRDM) for inserting and withdrawing control rods into a reactor core, is capable of independently and sequentially positioning two sets of control rods with a single motor stator and rotor. The CRDM disclosed can control more than one control rod lead screw without incurring a substantial increase in the size of the mechanism.

Smith, Jay E. (Pittsburgh, PA)

1984-01-01T23:59:59.000Z

236

Optically pumped isotopic ammonia laser system  

DOE Patents (OSTI)

An optically pumped isotopic ammonia laser system which is capable of producing a plurality of frequencies in the middle infrared spectral region. Two optical pumping mechanisms are disclosed, i.e., pumping on R(J) and lasing on P(J) in response to enhancement of rotational cascade lasing including stimulated Raman effects, and, pumping on R(J) and lasing on P(J+2). The disclosed apparatus for optical pumping include a hole coupled cavity and a grating coupled cavity.

Buchwald, Melvin I. (Santa Fe, NM); Jones, Claude R. (Los Alamos, NM); Nelson, Leonard Y. (Seattle, WA)

1982-01-01T23:59:59.000Z

237

Microelectromechanical pump utilizing porous silicon  

DOE Patents (OSTI)

A microelectromechanical (MEM) pump is disclosed which includes a porous silicon region sandwiched between an inlet chamber and an outlet chamber. The porous silicon region is formed in a silicon substrate and contains a number of pores extending between the inlet and outlet chambers, with each pore having a cross-section dimension about equal to or smaller than a mean free path of a gas being pumped. A thermal gradient is provided along the length of each pore by a heat source which can be an electrical resistance heater or an integrated circuit (IC). A channel can be formed through the silicon substrate so that inlet and outlet ports can be formed on the same side of the substrate, or so that multiple MEM pumps can be connected in series to form a multi-stage MEM pump. The MEM pump has applications for use in gas-phase MEM chemical analysis systems, and can also be used for passive cooling of ICs.

Lantz, Jeffrey W. (Albuquerque, NM); Stalford, Harold L. (Norman, OK)

2011-07-19T23:59:59.000Z

238

California's Energy Future - The View to 2050  

E-Print Network (OSTI)

ideas for energy storage, including pumped hydro, compressedNatural Gas Storage Combustion turbine Pumped hydro Wave,

2011-01-01T23:59:59.000Z

239

pumped storage | OpenEI  

Open Energy Info (EERE)

pumped storage pumped storage Dataset Summary Description These two datasets include energy statistics for the European Union (EU). The statistics are available from the European Commission. The data includes detailed information about: production, net imports, gross inland consumption, and electricity generation for the EU as a whole, as well as the individual member countries, for the period between 1990 and 2007. Source European Commission Date Released Unknown Date Updated Unknown Keywords annual energy consumption biomass coal crude oil Electricity Generation EU gas geothermal Hydro pumped storage PV renewable energy generating capacity wind Data application/vnd.ms-excel icon EU Energy Figures 2010 (Excel file, multiple tabs) (xls, 2 MiB) application/vnd.ms-excel icon EU Electricity Generation from Renewables (xls, 190.5 KiB)

240

Alternative Fuels Data Center: Blender Pump Dispensers  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Blender Pump Blender Pump Dispensers to someone by E-mail Share Alternative Fuels Data Center: Blender Pump Dispensers on Facebook Tweet about Alternative Fuels Data Center: Blender Pump Dispensers on Twitter Bookmark Alternative Fuels Data Center: Blender Pump Dispensers on Google Bookmark Alternative Fuels Data Center: Blender Pump Dispensers on Delicious Rank Alternative Fuels Data Center: Blender Pump Dispensers on Digg Find More places to share Alternative Fuels Data Center: Blender Pump Dispensers on AddThis.com... Blender Pump Dispensers Updated April 2, 2012 Federal and local initiatives to increase the use of ethanol in transportation have resulted in an increase of new ideas and applications for flexible fuel vehicles (FFVs) and E85, a high-level gasoline blend

Note: This page contains sample records for the topic "rod pumps view" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


241

Ground Source Heat Pumps | Open Energy Information  

Open Energy Info (EERE)

Ground Source Heat Pumps Ground Source Heat Pumps Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Print PDF Ground Source Heat Pumps Geothermal Technologies There are many types of Geothermal Technologies that take advantage of the earth's heat: Hydrothermal Systems Enhanced Geothermal Systems (EGS) Sedimentary Geothermal Systems Co-Produced Geothermal Systems Geothermal Direct Use Ground Source Heat Pumps GSHP Links Related documents and websites An Information Survival Kit for the Prospective Geothemral Heat Pump Owner List of Heat Pumps Incentives List of Ground Source Heat Pumps Incentives Policy Makers' Guidebook for Geothermal Heating and Cooling Various ways to configure a geothermal heat pump system. (Source: The Geo-Heat Center's Survival Kit for the Prospective Geothemral Heat Pump

242

Acoustical heat-pumping engine  

DOE Patents (OSTI)

The disclosure is directed to an acoustical heat pumping engine without moving seals. A tubular housing holds a compressible fluid capable of supporting an acoustical standing wave. An acoustical driver is disposed at one end of the housing and the other end is capped. A second thermodynamic medium is disposed in the housing near to but spaced from the capped end. Heat is pumped along the second thermodynamic medium toward the capped end as a consequence both of the pressure oscillation due to the driver and imperfect thermal contact between the fluid and the second thermodynamic medium.

Wheatley, J.C.; Swift, G.W.; Migliori, A.

1981-08-14T23:59:59.000Z

243

Jet pump feeds corrosion inhibitor in Russian waterflood  

SciTech Connect

The Russian company Orenburgneft JSC tested a proportioning jet pump for injecting corrosion inhibitor into the water injection system at its Tananykskoye waterflood. The jet pump has no moving parts and, therefore, provides an hermetic system with zero emissions of pumped and working fluid. This pump reduces weight, dimensions, and costs compared to mechanical pumps. The paper describes jet pumping and the pump design.

Yuden, I.S. [JKX Oil and Gas, Guildford (United Kingdom); Sazanov, Y.A.; Yeliseev, V.N.; Malov, B.A. [Orenburgneft JSC, Moscow (Russian Federation)

1997-01-27T23:59:59.000Z

244

Peristaltic pumps work in nano scales  

E-Print Network (OSTI)

A design for a pump is suggested which is based on well-known peristaltic pumps. In order to simply describe the operation of the proposed pump, an innovative interpretation of low Reynolds number swimmers is presented and thereafter a similar theoretical model would be suggested to quantify the behavior of the pumps. A coarse-grained molecular dynamic simulation is used to examine the theoretical predictions and measure the efficiency of the pump in nano scales. It is shown that this pump with a modest design is capable of being a good option for transport processes in nano scale.

Farnoush Farahpour; Mohammad Reza Ejtehadi

2013-08-05T23:59:59.000Z

245

Pump for molten metal or other fluid  

SciTech Connect

A pump having no moving parts which can be used to pump high temperature molten metal or other fluids in a vacuum or low pressure environment, and a method for pumping such fluids. The pump combines elements of a bubble pump with a trap which isolates the vacuum or low pressure region from the gas used to create the bubbles. When used in a vacuum the trap prevents the pumping gas from escaping into the isolated region and thereby reducing the quality of the vacuum. The pump includes a channel in which a pumping gas is forced under pressure into a cavity where bubbles are formed. The cavity is in contact with a reservoir which contains the molten metal or other fluid which is to be pumped. The bubbles rise up into a column (or pump tube) carrying the fluid with them. At the top of the column is located a deflector which causes the bubbles to burst and the drops of pumped fluid to fall into a trap. The fluid accumulates in the trap, eventually forcing its way to an outlet. A roughing pump can be used to withdraw the pumping gas from the top of the column and assist with maintaining the vacuum or low pressure environment.

Horton, James A. (Livermore, CA); Brown, Donald L. (Livermore, CA)

1994-01-01T23:59:59.000Z

246

Pump Systems Matter Mission and Vision | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

issionofPumpSystemsMatter.pdf More Documents & Publications Overview of Pump Systems Matter Hydraulic Institute Member Benefits Course Overview Pump Systems Matter Optimization...

247

Mohave Electric Cooperative - Heat Pump Rebate Program | Department...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Heat Pump Rebate Program Mohave Electric Cooperative - Heat Pump Rebate Program Eligibility Residential Savings For Heating & Cooling Commercial Heating & Cooling Heat Pumps...

248

Electrokinetically pumped high pressure sprays  

DOE Patents (OSTI)

An electrokinetic pump capable of producing high pressure is combined with a nozzle having a submicron orifice to provide a high pressure spray device. Because of its small size, the device can be contained within medical devices such as an endoscope for delivering biological materials such as DNA, chemo therapeutic agents, or vaccines to tissues and cells.

Schoeniger, Joseph S. (Oakland, CA); Paul, Phillip H. (Livermore, CA); Schoeniger, Luke (Pittsford, NY)

2005-11-01T23:59:59.000Z

249

Industrial Heat Pump Case Study  

E-Print Network (OSTI)

An open-cycle heat pump was retrofitted to a single-effect, recirculating-type evaporator used for reducing the water content of whey (a liquid by-product from cheese production). The purpose of the retrofit was to reduce the energy costs associated with operating the evaporator. The open-cycle heat pump design uses an electrically driven centrifugal compressor to recover the latent heat of the water vapor generated by the evaporator. (Steam was the original heat source but is now only needed for start-up.) This concept is sometimes called mechanical vapor compression (MVC) or mechanical vapor recompression (MVR). A variety of engineering issues have to be resolved to integrate a heat pump into an evaporator system. This paper identifies key issues and describes how they were resolved for this particular process. Issues include choice of compressor, motor selection, control strategy, impact of heat pump on heat exchanger surface area requirements and related issues, and methods for protecting the compressor from surge, droplet ingestion, and other hazards.

Wagner, J. R.; Brush, F. C.

1985-05-01T23:59:59.000Z

250

Electrokinetically pumped high pressure sprays  

DOE Patents (OSTI)

An electrokinetic pump capable of producing high pressure is combined with a nozzle having a submicron orifice to provide a high pressure spray device. Because of its small size, the device can be contained within medical devices such as an endoscope for delivering biological materials such as DNA, chemo therapeutic agents, or vaccines to tissues and cells.

Schoeniger, Joseph S. (Oakland, CA); Paul, Phillip H. (Livermore, CA); Schoeniger, Luke (Pittsford, NY)

2002-01-01T23:59:59.000Z

251

Geothermal heat pumps in Pierre  

SciTech Connect

There are two municipal connected heat pumps in Pierre, South Dakota: the South Dakota Discovery Center and Pierre City Hall.Both systems now utilize plate heat exchanger between the city water loop and the building loop. This article describes the geothermal system used in Pierre for both space heating and cooling of municipal buildings.

Wegman, S. [South Dakota Public Utilities Commission, Pierre, SD (United States)

1997-12-01T23:59:59.000Z

252

Update on diode-pumped solid-state laser experiments for inertial fusion energy  

Science Conference Proceedings (OSTI)

The authors have completed the initial phase of the diode-pumped solid-state laser (DPSSL) experimental program to validate the expected pumping dynamics and extraction cross-sections of Yb{sup 3+}-doped Sr{sub 5}(PO{sub 4}){sub 3}F (Yb:S-FAP) crystals. Yb:S-FAP crystals up to 25 x 25 x 175 mm in size have been grown for this purpose which have acceptable loss characteristics (energy transmission properties of a Yb:S-FAP rod. The small signal gain under saturated pumping conditions was measured. These measurements imply an emission cross section of 6.0 x 10{sup {minus}20} cm{sup 2} that falls within error bars of the previously reported value of 7.3 x 10{sup {minus}20} cm{sup 2}, obtained from purely spectroscopic techniques. The effects of radiation trapping on the emission lifetime have been quantified. The long lifetime of Yb:S-FAP has beneficial effects for diode-pumped amplifier designs, relative to materials with equivalent cross sections but shorter lifetimes, in that less peak pump intensity is required (thus lower diode costs) and that lower spontaneous emission rates lead to a reduction in amplified spontaneous emission. Consequently, up to 1.7 J/cm{sup 3} of stored energy density was achieved in a 6x6x44 mm Yb:S-FAP amplifier rod; this stored energy density is large relative to typical flashlamp-pumped Nd:glass values of 0.3 to 0.5 J/cm{sup 3}. A 2.4 kW peak power InGaAs diode array has been fabricated by Beach, Emanuel, and co-workers which meets the central wavelength, bandwidth, and energy specifications for the author`s immediate experiments. These results further increase their optimism of being able to produce a {approximately} 10% efficient diode-pumped solid state laser for inertial fusion energy.

Marshall, C.; Smith, L.; Payne, S.

1994-08-15T23:59:59.000Z

253

Heat Pump Water Heaters | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Water Heaters Water Heaters Heat Pump Water Heaters May 4, 2012 - 5:21pm Addthis A diagram of a heat pump water heater. A diagram of a heat pump water heater. What does this mean for me? Heat pump water heaters can be two to three times more energy efficient than conventional electric storage water heaters. Heat pump water heaters work in locations that remain in the 40º-90ºF range year-round. Most homeowners who have heat pumps use them to heat and cool their homes. But a heat pump also can be used to heat water -- either as stand-alone water heating system, or as combination water heating and space conditioning system. How They Work Heat pump water heaters use electricity to move heat from one place to another instead of generating heat directly. Therefore, they can be two to

254

Geothermal Heat Pumps | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Geothermal Heat Pumps Geothermal Heat Pumps Geothermal Heat Pumps June 24, 2012 - 5:08pm Addthis Watch how geothermal heat pumps heat and cool buildings by concentrating the naturally existing heat contained within the earth -- a clean, reliable, and renewable source of energy. How does it work? A geothermal heat pump uses the constant below ground temperature of soil or water to heat and cool your home. Geothermal heat pumps (GHPs), sometimes referred to as GeoExchange, earth-coupled, ground-source, or water-source heat pumps, have been in use since the late 1940s. They use the constant temperature of the earth as the exchange medium instead of the outside air temperature. This allows the system to reach fairly high efficiencies (300% to 600%) on the coldest winter nights, compared to 175% to 250% for air-source heat pumps on cool

255

Heat Pump Water Heaters | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Water Heaters Heat Pump Water Heaters August 19, 2013 - 2:59pm Addthis Illustration of a heat pump water heater, which looks like a tall cylinder with a small chamber on top and a...

256

Geothermal Heat Pump Basics | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

and a heat exchanger-a system of pipes buried in shallow ground. In the winter, the heat pump removes heat from the heat exchanger and pumps it into the indoor air delivery...

257

Nondestructive assay of sphere-pac fuel rods  

Science Conference Proceedings (OSTI)

Nondestructive assay (NDA) methods were studied for application to sphere-pac fuel with a high gamma ray background. It was decided that the NDA method selected should be capable of measuring total fissile content of each fuel rod as well as determining the axial fissile distribution because assay techniques that employ detection of spontaneous or induced gamma ray emission are not practicable because of the high gamma ray background of candidate fuels. Therefore, methods employing neutron detection were studied for use with sphere-pac fuel rods.

Allen, E.J.; Angelini, P.; Baker, S.P.; Heck, J.L.; Mack, J.E.

1981-03-01T23:59:59.000Z

258

Quantum dynamics of a nano-rod under compression  

E-Print Network (OSTI)

A nano-rod under compression, which is capacitively coupled to a Cooper-pair box, can be modeled in terms of a quartic oscillator linearly interacting with a tunnelling pseudo-spin. We have integrated numerically the quantum dynamics of this system in the partial Wigner representation and calculated the pseudo-spin population difference. Depending on the coupling, we have verified that the quantum tunnelling of the oscillator can lead to a more effective reduction of the Rabi oscillation amplitude of the pseudo-spin. Such findings suggests an experimental set-up that might be able to discriminate between the quantum and the classical motion of a nano-rod.

Geoffrey M. Beck; Alessandro Sergi

2013-02-16T23:59:59.000Z

259

Using Renewable Energy to Pump Water  

E-Print Network (OSTI)

Solar and wind power can be economical and environmentally friendly ways to pump water for homes, irrigation and/or livestock water wells. This publication explains how these pumps work, the advantages and disadvantages of using renewable energy sources, and methods to calculate your pumping requirements.

Mecke, Michael; Enciso, Juan

2007-06-08T23:59:59.000Z

260

Ground Source Heat Pumps Ground source heat pumps (GSHPs) use the earth's  

E-Print Network (OSTI)

Ground Source Heat Pumps Fact Sheet Ground source heat pumps (GSHPs) use the earth's constant. Waste heat can be used to heat hot water. System Types There are two types of ground source heat pumps, closed loop and open loop systems. Closed loop heat pumps use the earth as the heat source and heat sink

Paulsson, Johan

Note: This page contains sample records for the topic "rod pumps view" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


261

Selection criteria for oil?free vacuum pumps  

Science Conference Proceedings (OSTI)

Some high?vacuum pumps without oil in the swept pumping volume are now available for the evacuation and process pumping of vacuum systems. These pumps are from different principles

Pierre Duval

1989-01-01T23:59:59.000Z

262

Geothermal Heat Pump Benchmarking Report  

SciTech Connect

A benchmarking study was conducted on behalf of the Department of Energy to determine the critical factors in successful utility geothermal heat pump programs. A Successful program is one that has achieved significant market penetration. Successfully marketing geothermal heat pumps has presented some major challenges to the utility industry. However, select utilities have developed programs that generate significant GHP sales. This benchmarking study concludes that there are three factors critical to the success of utility GHP marking programs: (1) Top management marketing commitment; (2) An understanding of the fundamentals of marketing and business development; and (3) An aggressive competitive posture. To generate significant GHP sales, competitive market forces must by used. However, because utilities have functioned only in a regulated arena, these companies and their leaders are unschooled in competitive business practices. Therefore, a lack of experience coupled with an intrinsically non-competitive culture yields an industry environment that impedes the generation of significant GHP sales in many, but not all, utilities.

1997-01-17T23:59:59.000Z

263

Liquid metal pump for nuclear reactors  

DOE Patents (OSTI)

A pump for use in pumping high temperature liquids at high pressures, particularly liquid metals used to cool nuclear reactors is described. It is of the type in which the rotor is submerged in a sump but is fed by an inlet duct which bypasses the sump. A chamber, kept full of fluid, surrounds the pump casing into which fluid is bled from the pump discharge and from which fluid is fed to the rotor bearings and hence to the sump. This equalizes pressure inside and outside the pump casing and reduces or eliminates the thermal shock to the bearings and sump tank.

Allen, H.G.; Maloney, J.R.

1975-10-01T23:59:59.000Z

264

Self-pumping impurity control  

DOE Patents (OSTI)

It is an object of the present invention to provide an apparatus for removing impurities from the plasma in a fusion reactor without an external vacuum pumping system. It is also an object of the present invention to provide an apparatus for removing the helium ash from a fusion reactor. It is another object of the present invention to provide an apparatus which removes helium ash and minimizes tritium recycling and inventory.

Brooks, J.N.; Mattas, R.F.

1983-12-21T23:59:59.000Z

265

New Experimental Studies of Thermal Hydraulics of Rod Bundles (NESTOR)  

Science Conference Proceedings (OSTI)

The NESTOR project (that is, new experimental studies of thermal hydraulics of rod bundles) is a multiyear collaborative endeavor of the Electric Power Research Institute (EPRI), Electricit de France (EDF), and Commissariat a lEnergie Atomique (CEA). The project is aimed at elucidating thermal-hydraulics unknowns pertaining to axial offset anomaly (AOA) in pressurized water reactor (PWR) cores.

2011-10-26T23:59:59.000Z

266

Fabrication of control rods for the High Flux Isotope Reactor  

SciTech Connect

The High Flux Isotope Reactor (HFIR) is a research-type nuclear reactor that was designed and built in the early 1960s and has been in continuous operation since its initial criticality in 1965. Under current plans, the HFIR is expected to continue in operation until 2035. This report updates ORNL/TM-9365, Fabrication Procedure for HFIR Control Plates, which was mainly prepared in the early 1970's but was not issued until 1984, and reflects process changes, lessons learned in the latest control rod fabrication campaign, and suggested process improvements to be considered in future campaigns. Most of the personnel involved with the initial development of the processes and in part campaigns have retired or will retire soon. Because their unlikely availability in future campaigns, emphasis has been placed on providing some explanation of why the processes were selected and some discussions about the importance of controlling critical process parameters. Contained in this report is a description of the function of control rods in the reactor, the brief history of the development of control rod fabrication processes, and a description of procedures used in the fabrication of control rods. A listing of the controlled documents and procedures used in the last fabrication campaigns is referenced in Appendix A.

Sease, J.D.

1998-03-01T23:59:59.000Z

267

Evaluation of Carbon-Rod Reinforced Crippling Strength Specimens  

Science Conference Proceedings (OSTI)

The results of an experimental and analytical investigation of the crippling strength of carbon-rod reinforced specimens are presented. One-Edge-Free and No-Edge-Free crippling specimens with width-to-thickness ratios of 6.8 to 27 and 12.6 to 45, respectively, ...

Baker Donald J.; Rousseau Carl Q.

1999-04-01T23:59:59.000Z

268

September 2013 Most Viewed Documents for Renewable Energy Sources | OSTI,  

Office of Scientific and Technical Information (OSTI)

September 2013 Most Viewed Documents for Renewable Energy Sources September 2013 Most Viewed Documents for Renewable Energy Sources Chapter 11. Heat Exchangers Rafferty, Kevin D.; Culver, Gene (1998) 362 Wet cooling towers: rule-of-thumb design and simulation Leeper, S.A. (1981) 103 Chapter 17. Engineering cost analysis Higbee, Charles V. (1998) 79 Advanced Electric Submersible Pump Design Tool for Geothermal Applications Xuele Qi; Norman Turnquist; Farshad Ghasripoor (2012) 79 A study of lead-acid battery efficiency near top-of-charge and the impact on PV system design Stevens, J.W.; Corey, G.P. (1996) 76 PROPERTIES AND PERFORMANCE OF CEMENT-BASED GROUTS FOR GEOTHERMAL HEAT PUMP APPLICATIONS. ALLAN,M.L. (1999) 70 Solar radiation data manual for flat-plate and concentrating collectors Dunlap, M.A. [ed.]; Marion, W.; Wilcox, S. (null)

269

Submersible canned motor transfer pump  

DOE Patents (OSTI)

A transfer pump used in a waste tank for transferring high-level radioactive liquid waste from a waste tank and having a column assembly, a canned electric motor means, and an impeller assembly with an upper impeller and a lower impeller connected to a shaft of a rotor assembly. The column assembly locates a motor housing with the electric motor means adjacent to the impeller assembly which creates an hydraulic head, and which forces the liquid waste, into the motor housing to cool the electric motor means and to cool and/or lubricate the radial and thrust bearing assemblies. Hard-on-hard bearing surfaces of the bearing assemblies and a ring assembly between the upper impeller and electric motor means grind large particles in the liquid waste flow. Slots in the static bearing member of the radial bearing assemblies further grind down the solid waste particles so that only particles smaller than the clearances in the system can pass therethrough, thereby resisting damage to and the interruption of the operation of the transfer pump. The column assembly is modular so that sections can be easily assembled, disassembled and/or removed. A second embodiment employs a stator jacket which provides an alternate means for cooling the electric motor means and lubricating and/or cooling the bearing assemblies, and a third embodiment employs a variable level suction device which allows liquid waste to be drawn into the transfer pump from varying and discrete levels in the waste tank.

Guardiani, Richard F. (Ohio Township, Allegheny County, PA); Pollick, Richard D. (Sarver, PA); Nyilas, Charles P. (Monroeville, PA); Denmeade, Timothy J. (Lower Burrell, PA)

1997-01-01T23:59:59.000Z

270

Taking the long view  

NLE Websites -- All DOE Office Websites (Extended Search)

Taking the long view Taking the long view Taking the long view on environmental stewardship A newly articulated mission for environmental stewardship at the Laboratory can be summed up in a simple phrase: clean up the past, control current operations, and create a sustainable future. March 20, 2012 Los Alamos Aerial Aerial view of a canyon in Los Alamos, New Mexico. Contact Environmental Communication & Public Outreach P.O. Box 1663 MS M996 Los Alamos, NM 87545 (505) 667-0216 Email "The future viability of the Lab hinges on demonstrating to public that we protect human health and the environment." Environmental stewardship strategy looks 50 years into the future As a way of integrating environmental protection activities into a comprehensive strategy, Kevin Smith, manager of the U.S. Department of

271

A View from Elsewhere  

E-Print Network (OSTI)

Arcadia Project Review - A View From Elsewhere Tony Hirst Department of Communication and Systems, The Open University a.j.hirst@open.ac.uk Summary This report provides an overview of activities carried out during Michaelmas Term...

Hirst, Tony

2009-01-01T23:59:59.000Z

272

Method of increasing magnetostrictive response of rare earth-iron alloy rods  

DOE Patents (OSTI)

This invention comprises a method of increasing the magnetostrictive response of rare earth-iron (RFe) magnetostrictive alloy rods by a thermal-magnetic treatment. The rod is heated to a temperature above its Curie temperature, viz. from 400.degree. to 600.degree. C.; and, while the rod is at that temperature, a magnetic field is directionally applied and maintained while the rod is cooled, at least below its Curie temperature.

Verhoeven, John D. (Ames, IA); McMasters, O. Dale (Ames, IA); Gibson, Edwin D. (Ames, IA); Ostenson, Jerome E. (Ames, IA); Finnemore, Douglas K. (Ames, IA)

1989-04-04T23:59:59.000Z

273

Failure Root Cause of PCI Suspect Fuel Rods from Kernkraftwerk Leibstadt (KKL) Reactor: Part 2: PIE of Failed and Sibling Sound Rods  

Science Conference Proceedings (OSTI)

Researchers can best determine in-reactor fuel behavior by performing detailed post irradiation examinations (PIE) of carefully selected fuel rods. By applying PIE techniques to failed and sibling sound rods, they can often determine the failure mechanism or root cause. Similarly, they can obtain critical performance-limiting data by PIE of sound high burn-up fuel rods. The investigations and results detailed in this report achieve both of these goals.

2000-07-31T23:59:59.000Z

274

Submersible canned motor transfer pump  

DOE Patents (OSTI)

A transfer pump is described which is used in a waste tank for transferring high-level radioactive liquid waste from a waste tank and having a column assembly, a canned electric motor means, and an impeller assembly with an upper impeller and a lower impeller connected to a shaft of a rotor assembly. The column assembly locates a motor housing with the electric motor means adjacent to the impeller assembly which creates an hydraulic head, and which forces the liquid waste, into the motor housing to cool the electric motor means and to cool and/or lubricate the radial and thrust bearing assemblies. Hard-on-hard bearing surfaces of the bearing assemblies and a ring assembly between the upper impeller and electric motor means grind large particles in the liquid waste flow. Slots in the static bearing member of the radial bearing assemblies further grind down the solid waste particles so that only particles smaller than the clearances in the system can pass there through, thereby resisting damage to and the interruption of the operation of the transfer pump. The column assembly is modular so that sections can be easily assembled, disassembled and/or removed. A second embodiment employs a stator jacket which provides an alternate means for cooling the electric motor means and lubricating and/or cooling the bearing assemblies, and a third embodiment employs a variable level suction device which allows liquid waste to be drawn into the transfer pump from varying and discrete levels in the waste tank. 17 figs.

Guardiani, R.F.; Pollick, R.D.; Nyilas, C.P.; Denmeade, T.J.

1997-08-19T23:59:59.000Z

275

Absorption-heat-pump system  

DOE Patents (OSTI)

An improvement in an absorption heat pump cycle is obtained by adding adiabatic absorption and desorption steps to the absorber and desorber of the system. The adiabatic processes make it possible to obtain the highest temperature in the absorber before any heat is removed from it and the lowest temperature in the desorber before heat is added to it, allowing for efficient utilization of the thermodynamic availability of the heat supply stream. The improved system can operate with a larger difference between high and low working fluid concentrations, less circulation losses, and more efficient heat exchange than a conventional system.

Grossman, G.; Perez-Blanco, H.

1983-06-16T23:59:59.000Z

276

PUMP FOR GASEOUS WORKING FLUIDS  

DOE Patents (OSTI)

A gas pump having a substantially constant rate of flow and a relatively efficient punnping action is described. A number of flexible plates disposed longitudinally in and in contact with a duct are caused to oscillate transversly so as to produce wave-llke deformations of the plates. These deformations are mechanically produced by pushrods and an eccentric gearing arrangement, and are so synchronized that the waves travel from the inlet to the outlet of the duct, and, in so doing, move the gas by positive displacement.

Lipscomb, R.

1948-12-14T23:59:59.000Z

277

Analysis of a metallic nano-rod polarizer using finite-difference-time-domain method  

E-Print Network (OSTI)

The polarization behavior of metallic nano-rods has been analyzed by means of the finite-difference-time-domain method. When the average spacing between the nano-rods is less than a half wavelength, the layer reflects the light polarized parallel to the nano-rods, as in a nano-slit. However, when the spacing is larger than a half wavelength, the metallic surface absorbs the light, polarized perpendicular to the rods, leading to a polarization reversal. Multiple layers of nano-rods can make a polarizer with a high extinction ratio and good transmittance.

Ju, Young-Gu

2010-01-01T23:59:59.000Z

278

Prarie View RDF  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

PRAIRIE VIEW RDF PRAIRIE VIEW RDF 2 Prairie View RDF  Located at JAAP (approx. 40 miles southwest of Chicago), 223 acres on 455 Acre Parcel  Will County Owner; Waste Management, Operator  Maximum 23-Year Life WM/Will County Methane to Energy Plant  Landfill Contract Signed w/WM in 1997 w/Gas-to- Energy Plant Clause  County Retains Gas Rights &WM Installs Gas Collection System  WM owns Methane to Energy Plant &Tax Credits 3 CONTRACT PHASE  DOE Grant Applied 6/09  County Board Approves DOE EECBG Strategy 11/09  1 Million DOE Funds to Methane to Energy Plant  Schiff Harden Hired to Negotiate Gas to Energy Contract  February 2010 County Board Authorizes Contract Execution 4 5 METHANE TO ENERGY PLANT DETAILS  Waste Management Required To

279

NREL: Learning - Geothermal Heat Pump Basics  

NLE Websites -- All DOE Office Websites (Extended Search)

Heat Pump Basics Heat Pump Basics Photo of the West Philadelphia Enterprise Center. The West Philadelphia Enterprise Center uses a geothermal heat pump system for more than 31,000 square feet of space. Geothermal heat pumps take advantage of the nearly constant temperature of the Earth to heat and cool buildings. The shallow ground, or the upper 10 feet of the Earth, maintains a temperature between 50° and 60°F (10°-16°C). This temperature is warmer than the air above it in the winter and cooler in the summer. Geothermal heat pump systems consist of three parts: the ground heat exchanger, the heat pump unit, and the air delivery system (ductwork). The heat exchanger is a system of pipes called a loop, which is buried in the shallow ground near the building. A fluid (usually water or a mixture of

280

Geothermal Heat Pump Basics | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Heat Pump Basics Heat Pump Basics Geothermal Heat Pump Basics August 19, 2013 - 11:12am Addthis Text Version Geothermal heat pumps use the constant temperature of the earth as an exchange medium for heat. Although many parts of the country experience seasonal temperature extremes-from scorching heat in the summer to sub-zero cold in the winter-the ground a few feet below the earth's surface remains at a relatively constant temperature. Depending on the latitude, ground temperatures range from 45°F (7°C) to 75°F (21°C). So, like a cave's, the ground's temperature is warmer than the air above it during winter and cooler than the air above it in summer. Geothermal heat pumps take advantage of this by exchanging heat with the earth through a ground heat exchanger. Geothermal heat pumps are able to heat, cool, and, if so equipped, supply

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We encourage you to perform a real-time search of NLEBeta
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281

Geothermal Heat Pumps | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

You are here You are here Home » Geothermal Heat Pumps Geothermal Heat Pumps June 24, 2012 - 5:08pm Addthis Watch how geothermal heat pumps heat and cool buildings by concentrating the naturally existing heat contained within the earth -- a clean, reliable, and renewable source of energy. How does it work? A geothermal heat pump uses the constant below ground temperature of soil or water to heat and cool your home. Geothermal heat pumps (GHPs), sometimes referred to as GeoExchange, earth-coupled, ground-source, or water-source heat pumps, have been in use since the late 1940s. They use the constant temperature of the earth as the exchange medium instead of the outside air temperature. This allows the system to reach fairly high efficiencies (300% to 600%) on the coldest

282

Controllable stimulation of retinal rod cells using single photons  

E-Print Network (OSTI)

New tools and approaches of quantum optics offer a unique opportunity to generate light pulses carrying a precise number of photons (1). Accurate control over the light pulses helps to improve the characterization of photo-induced processes in biological systems (2). Here, we present a design of a specialised light source which provides exactly one photon at a time, and it is interfaced with retinal rod cells of Xenopus laevis toads. We give an independent proof for the single photon sensitivity of rod cells and measure single photon responses of individual cells. We determined their quantum efficiencies without the use of any pre-calibrated detectors (3-5), and obtained the value of (29+-4.7)%. Our approach provides the path for future studies and applications of quantum properties of light in phototransduction, vision, and photosynthesis (6-9).

Nam Mai Phan; Mei Fun Cheng; Dmitri A. Bessarab; Leonid A. Krivitsky

2013-08-03T23:59:59.000Z

283

Reciprocating Pump Systems for Space Propulsion  

DOE Green Energy (OSTI)

Small propellant pumps can reduce rocket hardware mass, while increasing chamber pressure to improve specific impulse. The maneuvering requirements for planetary ascent require an emphasis on mass, while those of orbiting spacecraft indicate that I{sub SP} should be prioritized during pump system development. Experimental efforts include initial testing with prototype lightweight components while raising pump efficiency to improve system I{sub SP}.

Whitehead, J C

2004-06-10T23:59:59.000Z

284

Retrospective Eddy Current Defect Analysis of Degraded Fuel Rods  

Science Conference Proceedings (OSTI)

EPRIs Fuel Reliability Program is currently sponsoring post-irradiation examination (PIE) projects to develop a correlation between eddy current signals and features of interest in Zircaloy fuel cladding and channel materials. In this report, eddy current PIE data were retrospectively analyzed using Magnifi 2.0 R3 software for comparison to other PIE data for five domestic BWR fuel rods with varying degrees of corrosion, hydride formation, and cracking. One goal was to determine if newer ...

2013-11-14T23:59:59.000Z

285

Microsoft Word - PumpProbe  

NLE Websites -- All DOE Office Websites (Extended Search)

Pump/Probe Pump/Probe Resources Available - BE Current Mid 2014 Mid 2016 Beamline X-ray Source Total Total Total NSLS-I 0.25 0.15 0 U4B Bend 0.05 0 0 U4IR Bend 0.2 0.15 0 APS 4.75 4.75 4.75 4-ID-C CPU 0 0 0 7-ID-C&D Undulator 1 1 1 7-BM-B Bend 1 1 1 10-ID-B Undulator 0.5 0.5 0.5 11-ID-D Undulator 1 1 1 14-ID-B Undulator 1 1 1 20-ID Undulator 0.25 0.25 0.25 ALS 3 3 3 4.0.2 EPU 0 0 0 6.0.1 Undulator 1 1 1 6.0.2 Undulator 1 1 1 6.1.2 Bend 0 0 0 9.0.2 Undulator 1 1 1 11.0.1 EPU 0 0 0 11.0.2 EPU 0 0 0 SSRL 0.15 0.45 0.45

286

Irrigation pumping using geothermal energy  

DOE Green Energy (OSTI)

The potential of using geothermal energy in an isobutane binary system to drive directly a cluster of irrigation pumps was evaluated. This three well geothermal system, based at 150{sup 0}C (302{sup 0}F) resource at 2000 m (6560 ft), would cost an estimated $7,800,000 in capital investment to provide 6000 gpm of irrigation water from 12 water wells. It would serve approximately 4.5 square miles of irrigated agricultural land, with the delivered water costing $106.76 per acre-foot. This compares with an estimated cost of $60.78 per acre-foot for a conventional irrigation system driven by natural gas at the current price (1980 dollars) of $2.72/mm Btu. It is obvious that if natural gas prices continue to rise, or if geothermal resources can be found at depths less than 2000 meters, then the geothermal irrigation pumping system would be attractive economically. The importance of water to the economy and growth of Arizona was summarized. Total water consumption in Arizona is about 7,600,000 acre-feet annually of which about 87% is used for agriculture. Total supply from the Colorado River and water runoff is only 2,600,000 acre-feet per year, resulting in a net potable groundwater depletion of about 4,000,000 acre-feet per year assuming a recharge rate of about 1,000,000 acre-feet per year.

White, D.H.; Goldstone, L.A.

1982-08-01T23:59:59.000Z

287

Submersible canned motor mixer pump  

DOE Patents (OSTI)

A mixer pump used in a waste tank for mobilizing high-level radioactive liquid waste having a column assembly containing power cables, a motor housing with electric motor means which includes a stator can of a stator assembly and a rotor can of a rotor assembly, and an impeller assembly with an impeller connected to a shaft of the rotor assembly. The column assembly locates the motor housing with the electric motor means adjacent to the impeller which creates an hydraulic head, and which forces the liquid waste into the motor housing to cool the electric motor means and to lubricate radial and thrust bearing assemblies. Hard-on-hard bearing surfaces of the bearing assemblies and a ring assembly between the impeller and electric motor means act to grind down large particles in the liquid waste flow. These larger particles are received in slots in the static bearing members of the radial bearing assemblies. Only solid waste particles smaller than the clearances in the system can pass therethrough, thereby resisting damage to and the interruption of the operation of the mixer pump.

Guardiani, Richard F. (Ohio Township, PA); Pollick, Richard D. (Sarver, PA)

1997-01-01T23:59:59.000Z

288

Submersible canned motor mixer pump  

DOE Patents (OSTI)

A mixer pump is described used in a waste tank for mobilizing high-level radioactive liquid waste having a column assembly containing power cables, a motor housing with electric motor means which includes a stator can of a stator assembly and a rotor can of a rotor assembly, and an impeller assembly with an impeller connected to a shaft of the rotor assembly. The column assembly locates the motor housing with the electric motor means adjacent to the impeller which creates an hydraulic head, and which forces the liquid waste into the motor housing to cool the electric motor means and to lubricate radial and thrust bearing assemblies. Hard-on-hard bearing surfaces of the bearing assemblies and a ring assembly between the impeller and electric motor means act to grind down large particles in the liquid waste flow. These larger particles are received in slots in the static bearing members of the radial bearing assemblies. Only solid waste particles smaller than the clearances in the system can pass there through, thereby resisting damage to and the interruption of the operation of the mixer pump. 10 figs.

Guardiani, R.F.; Pollick, R.D.

1997-10-07T23:59:59.000Z

289

Techniques and equipment for assessing the structural integrity of subterranean tower anchor rods  

DOE Patents (OSTI)

Techniques and equipment for evaluating structural integrity of buried anchor rods in situ are disclosed. The techniques avoid excavation of soil and avoid, or at least reduce, the possibility of damage to the rods or the concrete in which they may be embedded when evaluations are conducted. Instead, ultrasonic energy is transmitted through the rod from a portable transducer, and returned energy (in either or both of direct and mode-converted states) may be analyzed to assist in detecting flaws, corrosion, wastage, or other degradation of the rod. Data from a field evaluation may be compared with baseline data maintained either for a specific rod or for rods of similar composition and length (or both), and periodic field evaluations of a rod may be used to analyze trends in its structure over time.

Hinz, William R. (Martinez, GA); Parker, Matthew J. (Martinez, GA)

2001-01-01T23:59:59.000Z

290

Geothermal: Sponsored by OSTI -- Geothermal pump program  

Office of Scientific and Technical Information (OSTI)

pump program Geothermal Technologies Legacy Collection HelpFAQ | Site Map | Contact Us | Admin Log On HomeBasic Search About Publications Advanced Search New Hot Docs News...

291

Field Monitoring Protocol: Heat Pump Water Heaters  

NLE Websites -- All DOE Office Websites (Extended Search)

Field Monitoring Protocol: Heat Pump Water Heaters B. Sparn, L. Earle, D. Christensen, J. Maguire, and E. Wilson National Renewable Energy Laboratory C.E. Hancock Mountain Energy...

292

Clarksville Department of Electricity - Residential Heat Pump...  

Open Energy Info (EERE)

Share this page on Facebook icon Twitter icon Clarksville Department of Electricity - Residential Heat Pump Loan Program (Tennessee) This is the approved revision of...

293

Energy Saving Absorption Heat Pump Water Heater  

energy savings and can reduce the use of fossil fuels by buildings. While conventional heat pump water heater designs are limited to using toxic ammonia water ...

294

Heat Pump Water HeatersLaboratory Tests  

Science Conference Proceedings (OSTI)

EPRI conducted laboratory tests of several heat pump water heaters to assess their performance and energy efficiency. Among U.S. heat pump water heaters tested were new products from A. O. Smith, General Electric (GE), and Rheem. These units are designed to be integral, drop-in replacements for standard electric water heaters. Additionally, EPRI tested the Japanese-based Eco-cute heat pump water heater from Daikin, which is a split unit with an outdoor heat pump using CO2 as the refrigerant and an indoor...

2009-12-11T23:59:59.000Z

295

Energy Basics: Microhydropower Turbines, Pumps, and Waterwheels  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

A microhydropower system needs a turbine, pump, or waterwheel to transform the energy of flowing water into rotational energy, which is then converted into electricity....

296

Survey of Geothermal Heat Pump Shipments  

U.S. Energy Information Administration (EIA)

Others 930 3,369 454 4,753 ... Source: Energy Information Administration, Form EIA-902 "Annual Geothermal Heat Pump Manufacturers Survey." Relased: March 2006

297

Hybrid nuclear reactor grey rod to obtain required reactivity worth  

DOE Patents (OSTI)

Hybrid nuclear reactor grey rods are described, wherein geometric combinations of relatively weak neutron absorber materials such as stainless steel, zirconium or INCONEL, and relatively strong neutron absorber materials, such as hafnium, silver-indium cadmium and boron carbide, are used to obtain the reactivity worths required to reach zero boron change load follow. One embodiment includes a grey rod which has combinations of weak and strong neutron absorber pellets in a stainless steel cladding. The respective pellets can be of differing heights. A second embodiment includes a grey rod with a relatively thick stainless steel cladding receiving relatively strong neutron absorber pellets only. A third embodiment includes annular relatively weak netron absorber pellets with a smaller diameter pellet of relatively strong absorber material contained within the aperture of each relatively weak absorber pellet. The fourth embodiment includes pellets made of a homogeneous alloy of hafnium and a relatively weak absorber material, with the percentage of hafnium chosen to obtain the desired reactivity worth.

Miller, John V. (Munhall, PA); Carlson, William R. (Scott Township, Allegheny County, PA); Yarbrough, Michael B. (Hempfield Township, Westmoreland County, PA)

1991-01-01T23:59:59.000Z

298

Systematic hydraulic study on pumping stations equipped with surge tank mounted next to the pump  

Science Conference Proceedings (OSTI)

An important number of pumping stations, part of the Romanian irrigation systems, were conceived with surge tank mounted on the discharge duct, next to the pump, in order to protect the installation from hydraulic shock. In practice, the dimensioning ... Keywords: air chamber, geodetic head, head loss, pumping station, surge tank

Claudiu Stefan Nitescu; Anca Constantin

2010-07-01T23:59:59.000Z

299

Failed Fuel Analysis on Fuel Rods from Exelon BWRs: Volume 2: Hot Cell Investigation Of LaSalle Fuel Rods  

Science Conference Proceedings (OSTI)

A number of fuel failures were experienced in ATRIUM-9B fuel manufactured by Framatome ANP (FANP) and operated at Exelon plants between late 2000 and 2003. The failures tended to correlate with power changes (control blade movement), but a large number of poolside inspections, documented in Volume 1 of this investigation (Failed Fuel Analyses on Fuel Rods from Exelon BWRs, Volume 1: Poolside Inspection, EPRI report 1009494), were unable to determine the precise cause of failure. This Volume 2 report desc...

2005-06-06T23:59:59.000Z

300

Covered Product Category: Centrifugal Pumping System | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Centrifugal Pumping System Centrifugal Pumping System Covered Product Category: Centrifugal Pumping System October 7, 2013 - 11:25am Addthis FEMP provides acquisition guidance across a variety of product categories, including centrifugal pumping systems. Federal laws and executive orders mandate that agencies meet these efficiency requirements in all procurement and acquisition actions that are not specifically exempted by law. Buying Energy-Efficient Centrifugal Pumping Systems The most common applications for pumps at Federal facilities are for fresh water supply, hydronic heating and cooling systems, wastewater treatment, and drainage. For these applications, the most common type of pump is the centrifugal pump. Proper pump selection should consider both constant and variable flow and

Note: This page contains sample records for the topic "rod pumps view" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


301

Survey of advanced-heat-pump developments for space conditioning  

SciTech Connect

A survey of heat pump projects with special emphasis on those supported by DOE, EPRI, and the Gas Research Institute is presented. Some historical notes on heat pump development are discussed. Market and equipment trends, well water and ground-coupled heat pumps, heat-actuated heat pump development, and international interest in heat pumps are also discussed. 30 references.

Fairchild, P.D.

1981-01-01T23:59:59.000Z

302

ParaView at NERSC  

NLE Websites -- All DOE Office Websites (Extended Search)

ParaView ParaView ParaView Introduction ParaView is an open-source, multi-platform data analysis and visualization application. ParaView users can quickly build visualizations to analyze their data using qualitative and quantitative techniques. The data exploration can be done interactively in 3D or programmatically using ParaView's batch processing capabilities. ParaView was developed to analyze extremely large datasets using distributed memory computing resources. It can be run on supercomputers to analyze datasets of terascale as well as on laptops for smaller data. Remote Visualization with ParaView ParaView is a client-server application. The ParaView client (or simply paraview) will run on your desktop while the server will run at the remote supercomputing site. The following describes the steps you will take to

303

GEOTHERMAL HEAT PUMP GROUTING MATERIALS  

DOE Green Energy (OSTI)

The thermal conductivity of cementitious grouts has been investigated in order to determine suitability of these materials for grouting vertical boreholes used with geothermal heat pumps. The roles of mix variables such as water/cement ratio, sand/cement ratio and superplasticizer dosage were measured. The cement-sand grouts were also tested for rheological characteristics, bleeding, permeability, bond to HDPE pipe, shrinkage, coefficient of thermal expansion, exotherm, durability and environmental impact. This paper summarizes the thermal conductivity, permeability, bonding and exotherm data for selected cementitious grouts. The theoretical reduction in bore length that could be achieved with the BNL-developed cement-sand grouts is examined. Finally, the FY 98 research and field trials are discussed.

ALLAN,M.

1998-04-01T23:59:59.000Z

304

Geothermal heat pump grouting materials  

Science Conference Proceedings (OSTI)

The thermal conductivity of cementitious grouts has been investigated in order to determine suitability of these materials for grouting vertical boreholes used with geothermal heat pumps. The roles of mix variables such as water/cement ratio, sand/cement ratio and superplasticizer dosage were measured. The cement-sand grouts were also tested for rheological characteristics, bleeding, permeability, bond to HDPE pipe, shrinkage, coefficient of thermal expansion, exotherm, durability and environmental impact. This paper summarizes the thermal conductivity, permeability, bonding and exotherm data for selected cementitious grouts. The theoretical reduction in bore length that could be achieved with the BNL-developed cement-sand grouts is examined. Finally, the FY 98 research and field trials are discussed.

Allan, M.

1998-08-01T23:59:59.000Z

305

ABSORPTION HEAT PUMP IN THE DISTRICT HEATING  

E-Print Network (OSTI)

#12;ABSORPTION HEAT PUMP IN THE DISTRICT HEATING PLANT Dr.sc.ing. Agnese Lickrastina M.Sc. Normunds European Heat Pump Summit 2013, Nuremberg, 15-16.10.2013 · Riga District Heating company · Operation #12;JSC RGAS SILTUMS · the biggest District Heating company in Latvia and in the Baltic states

Oak Ridge National Laboratory

306

Heat Pump Markets UK in Europe  

E-Print Network (OSTI)

,000 units Total: 200,000 units 48% 19% 26% 0% 7% boilers heat pumps solar thermal micro chp & FC district% boilers heat pumps solar thermals micro chp & FC district heating 2010 2020Sales to new build 15% 51% 18 to Renewables Boiler non- con. Boilers con. Boiler Boiler + ST ST Boiler condensing Boiler non-condensing Boiler

Oak Ridge National Laboratory

307

A Two?Stage Oil Diffusion Pump  

Science Conference Proceedings (OSTI)

A two?stage oil diffusion pump built of glass is described which makes possible the utilization of the advantages of oil without requiring the use of an unusually good coarse vacuum. The novelty of the pump resides in the first stage which is so designed that it cannot clog even with the small clearances needed to work against high pressures.

Joseph E. Henderson

1935-01-01T23:59:59.000Z

308

VOLUME COMPENSATING MEANS FOR PULSATING PUMPS  

DOE Patents (OSTI)

A double diaphragm, two-liquid pulsating pump for remote control use, having as an improvement an apparatus for maintaining constant the volume of the liquid such as kerosene between the two diaphragms is described. Phase difficulties encountered in the operation of such pumps when the volume of the liquid is altered by changes in temperature are avoided.

Weaver, D.L.W.; MacCormack, R.S. Jr.

1959-12-01T23:59:59.000Z

309

Ground Loops for Heat Pumps and Refrigeration  

E-Print Network (OSTI)

Ground loops are used for water source heat pumps. Refrigeration can be put on a ground loop. Water-cooled condensing units are more efficient than air-cooled, and they can be put indoors. Indoor location makes piping for desuperheater hot water easy. Since refrigeration equipment runs more than heat pumps, energy savings can be large for ground-coupled refrigeration. The paper presents a design procedure for ground loops for heat pumps, hot water, ice machines, and water-cooled refrigeration. It gives an overview of the commercial ground-coupled systems in Louisiana that have both refrigeration and heat pumps. Systems vary from small offices to a three-story office building with 187 tons. A chain of hamburger outlets uses total ground-coupling in all of its stores. A grocery store has ground-coupling for heat pumps and refrigeration. Desuperheaters provide 80 percent of the hot water for a coin laundry in the same building. A comparison of energy costs in a bank with a ground-coupled heat pump system to a similar bank with air-conditioning and gas for heat revealed a 31 percent reduction in utility costs for the ground-coupled building. Two buildings of the Mississippi Power and Light Co. have ground-coupled heat pumps in one, and high efficiency air source heat pumps in the other. Energy savings in nine months was 60,000 kWh (25 percent), and electric peak demand was reduced 42 kW (35 percent).

Braud, H. J.

1986-01-01T23:59:59.000Z

310

Stereoscopic optical viewing system  

DOE Patents (OSTI)

An improved optical system which provides the operator with a stereoscopic viewing field and depth of vision, particularly suitable for use in various machines such as electron or laser beam welding and drilling machines. The system features two separate but independently controlled optical viewing assemblies from the eyepiece to a spot directly above the working surface. Each optical assembly comprises a combination of eye pieces, turning prisms, telephoto lenses for providing magnification, achromatic imaging relay lenses and final stage pentagonal turning prisms. Adjustment for variations in distance from the turning prisms to the workpiece, necessitated by varying part sizes and configurations and by the operator's visual accuity, is provided separately for each optical assembly by means of separate manual controls at the operator console or within easy reach of the operator.

Tallman, C.S.

1986-05-02T23:59:59.000Z

311

LED pumped lithium neodymium tetraphosphate lasers  

SciTech Connect

Laser action in lithium neodymium tetraphosphate, LiNdP/sub 4/O/sub 12/ (LNP), crystals, pumped with Al/sub x/Ga/sub 1-x/As electroluminescent diodes, is reported, citing both end- and side-pump configurations. The threshold incident light-emitting diode (LED) intensities at about -30/sup 0/C are 14.9 W/cm/sup 2/ and 7.2 W/cm/sup 2/ for end and side pump, respectively. Temperature dependences of threshold, stimulated emission cross section, and round-trip loss were measured experimentally. Possibility of room-temperature cw operation, maximum output power, and optimum coupling are discussed. Taking account of improvements of pumping optics, crystal homogeneity and LED structure, LED intensities required for room-temperature cw operation are 35 W/cm/sup 2/ and 8.5 W/cm/sup 2/ for end and side pump, respectively.

Saruwatari, M.; Kimura, T.

1976-10-01T23:59:59.000Z

312

Screening Pumping Systems for Energy Savings Opportunities  

E-Print Network (OSTI)

In most industrial settings, energy consumed by pumping systems is responsible for a major part of the overall electricity bill. In some cases, the energy is used quite efficiently; in others, it is not. Facility operators may be very familiar with pumping system equipment controllability, reliability, and availability, but only marginally aware of system efficiency. But there are some good reasons to increase that awareness: 1) As budgets shrink and the intensity of both domestic and international competition increases, the pressure to find additional ways of reducing costs will grow. 2) The reliability of pumps correlates with pump efficiency; that is, pumps operated near the design, or best efficiency point, will tend to perform more reliably and with greater availability. 3) The questions of whether global warming is truly occurring, and if it is, whether humankind's activities play a significant role may both be debatable. But there is no debating the fact that there are finite energy resources, particularly of the fossil fuel variety, on the earth. If we are to be counted as good stewards, then careful, if not frugal resource use is important. The cost of energy consumed by pumps usually dominates the pump life cycle cost. But many end users, already stretched to support day-to-day facility operations, lack the time and resources to perform a methodical engineering study of, in some cases, hundreds of pumps within their facilities to understand the energy costs and the potential opportunity for reduction. Under the auspices of the Department of Energy's (DOE) Motor Challenge Program, prescreening guidance documents and a computer program called PSAT (Pumping System Assessment Tool) have been developed to help end users, consultants, and equipment distributors recognize, both qualitatively and quantitatively, pumping system efficiency improvement opportunities. This paper describes the general methodologies employed and shows case study examples of the prescreening and software application.

Casada, D.

1999-05-01T23:59:59.000Z

313

Clark Public Utilities - Residential Heat Pump Loan Program | Department of  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Heat Pump Loan Program Heat Pump Loan Program Clark Public Utilities - Residential Heat Pump Loan Program < Back Eligibility Residential Savings Category Heating & Cooling Commercial Heating & Cooling Heat Pumps Maximum Rebate Air-Source Heat Pumps: $20,000 Geothermal Heat Pumps: $30,000 Program Info State District of Columbia Program Type Utility Loan Program Rebate Amount Air-Source Heat Pump: up to $20,000 Geothermal Heat Pumps: up to $30,000 Provider Clark Public Utilities Clark Public Utilities offers loans of up to $20,000 for air-source heat pumps and $30,000 for geothermal heat pumps. Loans will help customers cover the up-front cost of installing a highly efficient heat pump in a residence. All electrically heated homes, including manufactured homes, are eligible for the heat pump financing program, as long as the home has been

314

Air-Source Heat Pumps | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Air-Source Heat Pumps Air-Source Heat Pumps August 19, 2013 - 11:03am Addthis Air-source heat pumps transfer heat between the inside of a building and the outside air. How...

315

Best Practice for Energy Efficient Cleanrooms: Variable Speed Pumping  

E-Print Network (OSTI)

e.g. , chilled water pumps, or condenser water pumps, systemCooling tower and condenser water systems ? Free cooling ?of chilled water and condenser pumps, along with chiller

Xu, Tengfang

2005-01-01T23:59:59.000Z

316

Assessment of New Energy Efficient Circulator Pump Technology  

Science Conference Proceedings (OSTI)

Electric pumps are the workhorses behind several industrial processes that help in transferring liquids, gases, and slurries from one location to another. From simple water pumping systems to sophisticated oil refineries, electric pumps find their application in many different areas. From hot water circulation systems to pool pumps, electric pumps also are used in various capacities in commercial and residential sectors. This technical update provides a technical assessment of a new circulator pump techn...

2010-11-15T23:59:59.000Z

317

Simulation of Armor Penetration by Tungsten Rods: ALEGRA Validation Report  

E-Print Network (OSTI)

Results from simulations of the impact and penetration of tungsten alloy rods into thick rolled armor plates are presented. The calculations were performed with the CTH and ALEGRA computer codes using the DOE massively parallel TFLOPS computer co-developed by Sandia National Laboratory and Intel Corporation. Comparisons with experimental results are presented. Agreement of the two codes with each other and with the empirical results for penetration channel depth and radius is very close. Other shock physics and penetration features are also compared to simulation results. Distribution Category UC-705 ii Intentionally Left Blank iii Contents List of Figures ....................................................................................................... p. iv List of Tables ..........................................................................................................p. v Executive Summary ..............................................................................

Daniel E. Carroll; Eugene S. Hertel, Jr.; Timothy G. Trucano; Category Uc

1997-01-01T23:59:59.000Z

318

Resistance to ground of combined grid-multiple rods electrodes  

SciTech Connect

The resistance to ground of substations ground electrodes is one of the most important parameters determining the potential rise of the grounded equipment and other metal work within substation with respect to the remote earth as well as the potentials which might be transferred outside the substation. The resistance to ground of a wide set of square and rectangular grid electrodes combined with multiple rods, buried in uniform and two-layer soils, has been analyzed using available exact computer software. Based upon the results of this analysis, analytical expressions and graphs for electrodes resistance to ground are provided, appropriate for practical application.

Nahman, J.M. [Faculty of Electrical Engineering, Belgrade (Yugoslavia)] [Faculty of Electrical Engineering, Belgrade (Yugoslavia); Djordjevic, V.B. [Energoprojekt-Hidroinzenjering, Belgrade (Yugoslavia)] [Energoprojekt-Hidroinzenjering, Belgrade (Yugoslavia)

1996-07-01T23:59:59.000Z

319

Simulation of armor penetration by tungsten rods: ALEGRA validation report  

Science Conference Proceedings (OSTI)

Results from simulations of the impact and penetration of tungsten alloy rods into thick rolled armor plates are presented. The calculations were performed with the CTH and ALEGRA computer codes using the DOE massively parallel TFLOPS computer co-developed by Sandia National Laboratory and Intel Corporation. Comparisons with experimental results are presented. Agreement of the two codes with each other and with the empirical results for penetration channel depth and radius is very close. Other shock physics and penetration features are also compared to simulation results.

Carroll, D.E.; Hertel, E.S. Jr.; Trucano, T.G.

1997-11-01T23:59:59.000Z

320

Automatic inspection system for nuclear fuel pellets or rods  

DOE Patents (OSTI)

An automatic inspection system is provided for determining surface defects on cylindrical objects such as nuclear fuel pellets or rods. The active element of the system is a compound ring having a plurality of pneumatic jet units directed into a central bore. These jet units are connected to provide multiple circuits, each circuit being provided with a pressure sensor. The outputs of the sensors are fed to a comparator circuit whereby a signal is generated when the difference of pressure between pneumatic circuits, caused by a defect, exceeds a pre-set amount. This signal may be used to divert the piece being inspected into a "reject" storage bin or the like.

Miller, Jr., William H. (Oak Ridge, TN); Sease, John D. (Knoxville, TN); Hamel, William R. (Concord, TN); Bradley, Ronnie A. (Oak Ridge, TN)

1978-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "rod pumps view" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


321

Fail-safe storage rack for irradiated fuel rod assemblies  

DOE Patents (OSTI)

A fail-safe storage rack is provided for interim storage of spent but radioactive nuclear fuel rod assemblies. The rack consists of a checkerboard array of substantially square, elongate receiving tubes fully enclosed by a double walled container, the outer wall of which is imperforate for liquid containment and the inner wall of which is provided with perforations for admitting moderator liquid flow to the elongate receiving tubes, the liquid serving to take up waste heat from the stored nuclear assemblies and dissipate same to the ambient liquid reservoir. A perforated cover sealing the rack facilitates cooling liquid entry and dissipation.

Lewis, D.R.

1993-03-23T23:59:59.000Z

322

Fail-safe storage rack for fuel rod assemblies  

DOE Patents (OSTI)

This report discusses a fail-safe storage rack which is provided for interim storage of spent but radioactive nuclear fuel rod assemblies. The rack consists of a checkerboard array of substantially square, elongate receiving tubes fully enclosed by a double walled container, the outer wall of which is imperforate for liquid containment and the inner wall of which is provided with perforations for admitting moderator liquid flow to the elongate receiving tubes, the liquid serving to take up waste heat from the stored nuclear assemblies and dissipate same to the ambient liquid reservoir. A perforated cover sealing the rack facilitates cooling liquid entry and dissipation.

Lewis, D.R.

1991-12-31T23:59:59.000Z

323

Illustrative Calculation of Economics for Heat Pump and "Grid...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Illustrative Calculation of Economics for Heat Pump and "Grid-Enabled" Water Heaters Illustrative Calculation of Economics for Heat Pump and "Grid-Enabled" Water Heaters Rate...

324

Heat Pump Water Heaters and American Homes: A Good Fit?  

E-Print Network (OSTI)

2001. Residential Heat Pump Water Heater (HPWH) DevelopmentKelso, J. 2003. Incorporating Water Heater Replacement into2005. Residential Heat Pump Water Heaters: Energy Efficiency

Franco, Victor

2011-01-01T23:59:59.000Z

325

Overview of Pump Systems Matter | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

PumpSystemsMatter.pdf More Documents & Publications Summary of 2011 Accomplishments HI & PSM Course Overview Pump Systems Matter Optimization Hydraulic Institute Member Benefits...

326

Bandera Electric Cooperative - Residential Heat Pump Rebate Program...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Bandera Electric Cooperative - Residential Heat Pump Rebate Program Bandera Electric Cooperative - Residential Heat Pump Rebate Program Eligibility Residential Savings For Heating...

327

Coast Electric Power Association - Heat Pump and Weatherization...  

Open Energy Info (EERE)

CaulkingWeather-stripping, Doors, DuctAir sealing, Heat pumps, Water Heaters, Windows, Geothermal Heat Pumps, Generators Active Incentive No Incentive Inactive Date 0803...

328

Energy 101: Geothermal Heat Pumps | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Sites Power Marketing Administration Other Agencies You are here Home Energy 101: Geothermal Heat Pumps Energy 101: Geothermal Heat Pumps Addthis Description An energy-efficient...

329

White County REMC - Residential Geothermal Heat Pump Rebate Program...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Other Agencies You are here Home Savings White County REMC - Residential Geothermal Heat Pump Rebate Program White County REMC - Residential Geothermal Heat Pump Rebate...

330

Assessment of Hybrid Geothermal Heat Pump Systems - Technology...  

NLE Websites -- All DOE Office Websites (Extended Search)

cool- ing needs of the building and offers general guidelines Assessment of Hybrid Geothermal Heat Pump Systems Geothermal heat pumps offer attractive choice for space...

331

Geothermal Heat Pumps Deliver Big Savings for Federal Facilities...  

NLE Websites -- All DOE Office Websites (Extended Search)

Energy Efficiency and Renewable Energy, and the authoring national laboratory. Geothermal heat pump surface water loops. Geothermal Heat Pumps Deliver Big Savings for Federal...

332

Super Energy Saver Heat Pump - Energy Innovation Portal  

ORNL researchers developed a broad class of dynamic hybrid phase change materials and coupled them to residential heat pumps, inventing a super energy saver heat pump.

333

Electrically Distributed Optically Pumped Laser Spark Plug and...  

NLE Websites -- All DOE Office Websites (Extended Search)

Distributed Optically Pumped Laser Spark Plug and Ignition System Opportunity Research is active on the patent-pending technology, titled "Electrically Distributed Optically Pumped...

334

Considerations for sensitivity analysis, uncertainty quantification, and data assimilation for grid-to-rod fretting  

SciTech Connect

Grid-to-rod fretting is the leading cause of fuel failures in pressurized water reactors, and is one of the challenge problems being addressed by the Consortium for Advanced Simulation of Light Water Reactors to guide its efforts to develop a virtual reactor environment. Prior and current efforts in modeling and simulation of grid-to-rod fretting are discussed. Sources of uncertainty in grid-to-rod fretting are also described.

Michael Pernice

2012-10-01T23:59:59.000Z

335

Report on the evaluation of the tritium producing burnable absorber rod lead test assembly. Revision 1  

Science Conference Proceedings (OSTI)

This report describes the design and fabrication requirements for a tritium-producing burnable absorber rod lead test assembly and evaluates the safety issues associated with tritium-producing burnable absorber rod irradiation on the operation of a commercial light water reactor. The report provides an evaluation of the tritium-producing burnable absorber rod design and concludes that irradiation can be performed within U.S. Nuclear Regulatory Commission regulations applicable to a commercial pressurized light water reactor.

NONE

1997-03-01T23:59:59.000Z

336

Method of bundling rods so as to form an optical fiber preform  

DOE Patents (OSTI)

The present invention provides a simple method for fabricating fiber-optic glass preforms having complex refractive index configurations and/or dopant distributions in a radial direction with a high degree of accuracy and precision. The method teaches bundling together a plurality of glass rods of specific physical, chemical, or optical properties and wherein the rod bundle is fused in a manner that maintains the cross-sectional composition and refractive-index profiles established by the position of the rods.

Kliner, Dahv A. V. (San Ramon, CA); Koplow, Jeffery P. (Washington, DC)

2004-03-30T23:59:59.000Z

337

Dynamic View Management System for Query Prediction to View Materialization  

Science Conference Proceedings (OSTI)

On-Line Analytical Processing OLAP systems based on data warehouses are the main systems for managerial decision making and must have a quick response time. Several algorithms have been presented to select the proper set of data and elicit suitable structured ... Keywords: Data Warehousing, Dynamic View Materialization, OLAP, Probabilistic Reasoning Approaches, View Prediction, View Selection

Negin Daneshpour; Ahmad Abdollahzadeh Barfourosh

2011-04-01T23:59:59.000Z

338

The View from HQ  

National Nuclear Security Administration (NNSA)

A publication of the Office of Advanced Simulation & Computing, NNSA Defense Programs A publication of the Office of Advanced Simulation & Computing, NNSA Defense Programs NA-ASC-500-07-Issue 3 May 2007 The View from HQ by Dimitri Kusnezov I have been spending much of my time these days thinking about science, technology and engineering and the role of the laboratories and how that will be reflected in the Complex of the future. This is on my mind for two reasons: one is my responsibility to

339

Application of Critical Strain Energy Density to Predicting High-Burnup Fuel Rod Failure  

Science Conference Proceedings (OSTI)

This report documents responses to Nuclear Regulatory Commission (NRC) staff concerning application of critical strain energy density (CSED) to predicting high-burnup fuel rod failure.

2005-09-26T23:59:59.000Z

340

All-Dielectric Rod-Type Metamaterials Operating at Optical Frequencies  

E-Print Network (OSTI)

Light propagation in all-dielectric rod-type metamaterials is studied theoretically. The electric and magnetic dipole moments of the rods are derived analytically in the long-wavelength limit. The photonic band structure of a square array of rods is retrieved by homogenizing the corresponding array of dipoles. It is found that such a structure exhibits a true left-handed behavior, confirming previous experimental results [L. Peng \\textit{et al.}, Phys. Rev. Lett. \\textbf{98}, 157403 (2007)]. A scaling analysis proves that this effect holds at optical frequencies and can be obtained, for instance, by using silicon rods.

Vynck, K; Centeno, E; Cuabuz, A I; Cassagne, D; Guizal, B

2008-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "rod pumps view" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


341

PATHFINDER ATOMIC POWER PLANT. BORON STAINLESS STEEL CONTROL RODS FOR PATHFINDER REACTOR. Final Summary Report  

SciTech Connect

An extensive development, fabrication, and design analysis program was completed on 2 wt% boron stainiess steel for Pathfinder boiler and superheater control rods. Results indicated that the control rods will operate satisfactorily in the reactor under all foreseeable conditions. It was concluded that the maximum local burnup on the boiler rods is limited to 1.0 core at.% and the superheater rods to 0.5 core at.% to remain well below the onset of any deleterious effects. All stresses imposed on the material were found to be below yield strength. The deflections were calculated and were not sufficient to restrict any movement of the cruciform during reactor operations and scrams. A welding development program produced a sound fabrication method for producing the control rods. A prototype rod was extensively tested in the hot control rod drive test, including a large number of scrams. The rod showed no deleterious effects. The rods were designed to accommodate any helium release and swelling that may occur. (M.C.G.)

Patterson, D.A.; Nehrig, D.A.; Klumb, R.H.; Peterson, T.E.

1963-02-15T23:59:59.000Z

342

Process development and fabrication for sphere-pac fuel rods. [PWR; BWR  

Science Conference Proceedings (OSTI)

Uranium fuel rods containing sphere-pac fuel have been fabricated for in-reactor tests and demonstrations. A process for the development, qualification, and fabrication of acceptable sphere-pac fuel rods is described. Special equipment to control fuel contamination with moisture or air and the equipment layout needed for rod fabrication is described and tests for assuring the uniformity of the fuel column are discussed. Fuel retainers required for sphere-pac fuel column stability and instrumentation to measure fuel column smear density are described. Results of sphere-pac fuel rod fabrication campaigns are reviewed and recommended improvements for high throughput production are noted.

Welty, R.K.; Campbell, M.H.

1981-06-01T23:59:59.000Z

343

Supercharger for Heat Pumps in Cold Climates  

NLE Websites -- All DOE Office Websites (Extended Search)

Supercharger for Heat Supercharger for Heat Pumps in Cold Climates Thomas J. Walter Mechanical Solutions, Inc. tjw@mechsol.com 518-320-8552 April 3, 2013 DOE SBIR Grant No. SC0006162 Concept is similar to superchargers for piston engine aircraft 2 | Building Technologies Office eere.energy.gov Purpose & Objectives Problem Statement: Electrically driven heat pumps are an effective method of extracting heat from ambient air. As air temperature falls, however, heat pump performance falls off, essentially limiting their year round usefulness to

344

Supercharger for Heat Pumps in Cold Climates  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Supercharger for Heat Supercharger for Heat Pumps in Cold Climates Thomas J. Walter Mechanical Solutions, Inc. tjw@mechsol.com 518-320-8552 April 3, 2013 DOE SBIR Grant No. SC0006162 Concept is similar to superchargers for piston engine aircraft 2 | Building Technologies Office eere.energy.gov Purpose & Objectives Problem Statement: Electrically driven heat pumps are an effective method of extracting heat from ambient air. As air temperature falls, however, heat pump performance falls off, essentially limiting their year round usefulness to

345

Canned pump having a high inertia flywheel  

DOE Patents (OSTI)

A canned pump is described which includes a motor, impeller, shaft, and high inertia flywheel mounted within a hermetically sealed casing. The flywheel comprises a heavy metal disk made preferably of a uranium alloy with a stainless steel shell sealably enclosing the heavy metal. The outside surfaces of the stainless steel comprise thrust runners and a journal for mating with, respectively, thrust bearing shoes and radial bearing segments. The bearings prevent vibration of the pump and, simultaneously, minimize power losses normally associated with the flywheel resulting from frictionally pumping surrounding fluid.

Veronesi, Luciano (O' Hara Twp., Allegheny County, PA); Raimondi, ALbert A. (Monroeville Borough, Allegheny County, PA)

1989-01-01T23:59:59.000Z

346

Canned pump having a high inertia flywheel  

DOE Patents (OSTI)

A canned pump is described which includes a motor, impeller, shaft, and high inertia flywheel mounted within a hermetically sealed casing. The flywheel comprises a heavy metal disk made preferably of a uranium alloy with a stainless steel shell sealably enclosing the heavy metal. The outside surfaces of the stainless steel comprise thrust runners and a journal for mating with, respectively, thrust bearing shoes and radial bearing segments. The bearings prevent vibration of the pump and, simultaneously, minimize power losses normally associated with the flywheel resulting from frictionally pumping surrounding fluid. 5 figs.

Veronesi, L.; Raimondi, A.A.

1989-12-12T23:59:59.000Z

347

Solid state radiative heat pump  

DOE Patents (OSTI)

A solid state radiative heat pump (10, 50, 70) operable at room temperature (300.degree. K.) utilizes a semiconductor having a gap energy in the range of 0.03-0.25 eV and operated reversibly to produce an excess or deficit of charge carriers as compared to thermal equilibrium. In one form of the invention (10, 70) an infrared semiconductor photodiode (21, 71) is used, with forward or reverse bias, to emit an excess or deficit of infrared radiation. In another form of the invention (50), a homogeneous semiconductor (51) is subjected to orthogonal magnetic and electric fields to emit an excess or deficit of infrared radiation. Three methods of enhancing transmission of radiation through the active surface of the semiconductor are disclosed. In one method, an anti-reflection layer (19) is coated into the active surface (13) of the semiconductor (11), the anti-reflection layer (19) having an index of refraction equal to the square root of that of the semiconductor (11). In the second method, a passive layer (75) is spaced from the active surface (73) of the semiconductor (71) by a submicron vacuum gap, the passive layer having an index of refractive equal to that of the semiconductor. In the third method, a coupler (91) with a paraboloid reflecting surface (92) is in contact with the active surface (13, 53) of the semiconductor (11, 51), the coupler having an index of refraction about the same as that of the semiconductor.

Berdahl, Paul H. (Oakland, CA)

1986-01-01T23:59:59.000Z

348

Solid state radiative heat pump  

DOE Patents (OSTI)

A solid state radiative heat pump operable at room temperature (300 K) utilizes a semiconductor having a gap energy in the range of 0.03-0.25 eV and operated reversibly to produce an excess or deficit of change carriers as compared equilibrium. In one form of the invention an infrared semiconductor photodiode is used, with forward or reverse bias, to emit an excess or deficit of infrared radiation. In another form of the invention, a homogenous semiconductor is subjected to orthogonal magnetic and electric fields to emit an excess or deficit of infrared radiation. Three methods of enhancing transmission of radiation the active surface of the semiconductor are disclosed. In one method, an anti-refection layer is coated into the active surface of the semiconductor, the anti-reflection layer having an index of refraction equal to the square root of that of the semiconductor. In the second method, a passive layer is speaced trom the active surface of the semiconductor by a submicron vacuum gap, the passive layer having an index of refractive equal to that of the semiconductor. In the third method, a coupler with a paraboloid reflecting surface surface is in contact with the active surface of the semiconductor, the coupler having an index of refraction about the same as that of the semiconductor.

Berdahl, P.H.

1984-09-28T23:59:59.000Z

349

Informative Views and Active Recognition  

E-Print Network (OSTI)

Informative Views and Active Recognition Tal Arbel, Frank P. Ferrie, and Peter Whaite TR-CIM-94-7897 Email: cim@cim.mcgill.ca #12;Informative Views and Active Recognition Tal Arbel, Frank P. Ferrie

Dudek, Gregory

350

Evaluation of rodded BWR assembly pin powers with simulate  

SciTech Connect

In the development of Studsvik's nodal code SIMULATE5, special attention has been given to the accurate description of pin powers. The code solves the multi-group diffusion or simplified P3 equations with high spatial resolution. A short description is given of the handling of material heterogeneities in the axial and radial directions - the axial re-homogenization and the radial sub-mesh model, respectively. Furthermore, two models which are of special importance in the presence of control rods, and hence on the pellet clad interaction (PCI) phenomenon, are described; the quarter-assembly thermal-hydraulic treatment and the depletion of absorber material. A numerical example for a real core shows that while the impact of the fine grained description is negligible on global parameters such as k{sub eff}, the effect on pin powers may be substantial. For a deeply inserted and highly depleted control rod, the difference in pin powers caused by neglecting the advanced models of SIMULATE5, may be as high as 15 %. (authors)

Bahadir, T. [Studsvik Scandpower, Inc., 309 Waverly Oaks Road (United States); Lindahl, S. Oe. [Studsvik Scandpower AB, Stensborgsgatan 4, SE-721 32 Vaesteraas (Sweden)

2012-07-01T23:59:59.000Z

351

Heat Pump Water Heaters Demonstration Project  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Heat Pump Water Heaters Heat Pump Water Heaters Demonstration Project Building America Stakeholder Meeting Ron Domitrovic Ammi Amarnath 3/1/2012 Austin, TX 2 © 2011 Electric Power Research Institute, Inc. All rights reserved. HPWH Field Demonstration: Research Objectives * Assess heat pump water heater technology by measuring efficiency. * Provide credible data on the performance and reliability of heat pump water heaters. * Assess user satisfaction in a residential setting. 3 © 2011 Electric Power Research Institute, Inc. All rights reserved. Demonstration Host Utilities Target: 40 Units per Utility Installed and Potential Sites by Climate Zone Source: Department of Energy (DOE), Building America climate regions 4 © 2011 Electric Power Research Institute, Inc. All rights reserved. Installation Locations-Southern Company Region

352

Ag & Water Pump | OpenEI  

Open Energy Info (EERE)

Ag & Water Pump Ag & Water Pump Dataset Summary Description Natural gas consumption data from the California Energy Commission by planning area for Commercial, Residential, Ag & Water Pump, Streetlight, Industry, Mining & Construction and Total Usage. Source California Energy Commission Date Released Unknown Date Updated Unknown Keywords Ag & Water Pump annual energy consumption Commercial Energy Consumption Industry Residential Streetlight Data text/csv icon Natural Gas Consumption by Planning Area (csv, 12.6 KiB) Quality Metrics Level of Review Some Review Comment Temporal and Spatial Coverage Frequency Time Period 1990-2009 License License Other or unspecified, see optional comment below Comment http://www.energy.ca.gov/conditions.html Rate this dataset Usefulness of the metadata

353

Performance of a New Lightweight Reciprocating Pump  

DOE Green Energy (OSTI)

A new four-chamber piston pump design has been fabricated and tested. The small-scale propellant pump is intended to be powered by gas at elevated temperatures, e.g. in a gas-generator cycle rocket propulsion system. Two key features are combined for the first time: leak-tight liquid-cooled seals, and a high throughput per unit hardware mass. Measured performance curves quantify flows, pressures, leakage, volumetric efficiency, and tank pressure requirements. A pair of 300-gram pumps operating with significant margin could deliver fuel and oxidizer at 5 MPa to a compact lightweight 1000-N engine, while tank pressure remains at 0.35 MPa. Pump weight is well below one percent of thrust, as is typical for launch vehicle engines. Applications include small upper stages, aggressive maneuvers in space, and miniature launch vehicles for Mars ascent.

Whitehead, J C

2005-06-09T23:59:59.000Z

354

Edmond Electric- Residential Heat Pump Rebate Program  

Energy.gov (U.S. Department of Energy (DOE))

Edmond Electric offers rebates to residential customers who install energy-efficient heat pumps. This program applies to installations in both new and existing residential homes and complexes. Air...

355

SP-100 thermoelectric-electromagnetic pump review  

DOE Green Energy (OSTI)

This report contains vugraphs of a presentation on thermoelectric-electromagnetic pumps. It contains: engineering drawings; summary of rectangular TEMP results and comparison with GE predictions; and results of optimization study.

NONE

1988-12-31T23:59:59.000Z

356

Energy Basics: Heat Pump Water Heaters  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

for optimum operation in either summer or winter. Homeowners primarily install geothermal heat pumps-which draw heat from the ground during the winter and from the indoor air...

357

Thermal pumping of light-emitting diodes  

E-Print Network (OSTI)

The work presented here is a study of thermally enhanced injection in light-emitting diodes (LEDs). This effect, which we refer to as "thermal pumping", results from Peltier energy exchange from the lattice to charge ...

Gray, Dodd (Dodd J.)

2011-01-01T23:59:59.000Z

358

Absorption Heat Pumps | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

heat pumps driven not by electricity, but by a heat source such as natural gas, propane, solar-heated water, or geothermal-heated water. Because natural gas is the most...

359

Ductless, Mini-Split Heat Pumps  

Energy.gov (U.S. Department of Energy (DOE))

Ductless, mini-split-system heat pumps (mini splits), as their name implies, do not have ducts. Therefore, they make good retrofit add-ons to houses or buildings with "non-ducted" heating systems,...

360

Electrospray emitters For diffusion vacuum pumps  

E-Print Network (OSTI)

Following similar principles as regular diffusion vacuum pumps, an electrospray emitter is set to produce a jet of charged particles that will drag air molecules out of a volume. To be a feasible concept, the emitted ...

Diaz Gmez Maqueo, Pablo (Pablo Ly)

2011-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "rod pumps view" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


361

Exploding conducting film laser pumping apparatus  

DOE Patents (OSTI)

The 342-nm molecular iodine and the 1.315-..mu..m atomic iodine lasers have been optically pumped by intense light from exploding-metal-film discharges. Brightness temperatures for the exploding-film discharges were approximately 25,000 K. Although lower output energies were achieved for such discharges when compared to exploding-wire techniques, the larger surface area and smaller inductance inherent in the exploding-film should lead to improved efficiency for optically-pumped gas lasers.

Ware, K.D.; Jones, C.R.

1984-04-27T23:59:59.000Z

362

Heat Pump Water Heaters for Commercial Buildings  

Science Conference Proceedings (OSTI)

This technical update from the Electric Power Research Institute (EPRI) reviews the technology of heat pump water heaters (HPWHs) for commercial building applications. The report discusses the technical and conceptual background of heat pump water heaters, laboratory testing as performed at EPRI's laboratory, and implications of the test results. It provides analysis of the climactic applicability, financial scenarios, the air-cooling benefit or detriment of HPWH technology.

2011-12-22T23:59:59.000Z

363

S-102 Transfer Pump Restriction Modeling Results  

SciTech Connect

It was determined that a radioactive waste leak in the Hanford S Farm in the vicinity of the S-102 retrieval pump discharge occurred because of over-pressurization and failure of the S-102 dilution water supply hose while operating the retrieval pump in reverse with an obstructed suction cavity and an unobstructed flow path to the dilution water supply hose. This report describes efforts to identify plausible scenarios for the waste leak to occur.

Wells, Beric E.; Johnson, Kenneth I.; Rector, David R.; Trent, Donald S.

2008-03-27T23:59:59.000Z

364

Laser-induced quantum pumping in graphene  

SciTech Connect

We investigate non-adiabatic electron pumping in graphene generated by laser irradiation with linear polarization parallel or perpendicular to the transport direction. Transport is dominated by the spatially asymmetric excitation of electrons from evanescent into propagating modes. For a laser with parallel polarization, the pumping response exhibits a subharmonic resonant enhancement which directly probes the Fermi energy; no such enhancement occurs for perpendicular polarization. The resonance mechanism relies on the chirality of charge carriers in graphene.

San-Jose, Pablo [Instituto de Estructura de la Materia (IEM-CSIC), Serrano 123, 28006 Madrid (Spain); Prada, Elsa; Kohler, Sigmund [Instituto de Ciencia de Materiales de Madrid, CSIC, Cantoblanco, 28049 Madrid (Spain); Schomerus, Henning [Department of Physics, Lancaster University, Lancaster LA1 4YB (United Kingdom)

2012-10-08T23:59:59.000Z

365

Protective laser beam viewing device  

SciTech Connect

A protective laser beam viewing system or device including a camera selectively sensitive to laser light wavelengths and a viewing screen receiving images from the laser sensitive camera. According to a preferred embodiment of the invention, the camera is worn on the head of the user or incorporated into a goggle-type viewing display so that it is always aimed at the area of viewing interest to the user and the viewing screen is incorporated into a video display worn as goggles over the eyes of the user.

Neil, George R.; Jordan, Kevin Carl

2012-12-18T23:59:59.000Z

366

Vertical pump turbine oil environmental evaluation  

DOE Green Energy (OSTI)

In Oregon low-temperature geothermal injection well construction, siting and receiving formations requires approval by the Water Resources Department (OWRD). In addition, the Oregon Department of Environmental Quality (ODEQ) has regulations concerning injection. Conversations with the OWRD and ODEQ representatives indicated they were very concerned about the potential for contamination of the geothermal (and cooler but hydraulically connected) aquifers by oils and grease. Their primary concern was over the practice of putting paraffin, motor oils and other hydrocarbons in downhole heat exchanger (DHE) wells to prevent corrosion. They also expressed considerable concern about the use of oil in production well pumps since the fluids pumped would be injected. Oregon (and Idaho) prohibit the use of oil-lubricated pumps for public water supplies except in certain situations where non-toxic food-grade lubricants are used. Since enclosed-lineshaft oil-lubricated pumps are the mainstay of direct-use pumping equipment, the potential for restricting their use became a concern to the Geo-Heat Center staff. An investigation into alternative pump lubrication schemes and development of rebuttals to potential restrictions was proposed and approved as a contract task. (SM)

Culver, G.

1991-04-01T23:59:59.000Z

367

The View from HQ  

National Nuclear Security Administration (NNSA)

  NA-ASC-500-07 Issue 2 January 2007 The View from HQ Sitting in airports and planes is risky beyond the obvious dangers now in the news. Uninter- rupted time to think may lead to new ideas. Instinct instructs us that when we hear Wash- ington has some new ideas, the result must be bad. After all, ideas suggest change, which is inherently disruptive. Today the notion of predictivity is on my mind as I am leaving the V&V 2007 meeting in Los Alamos. Predictivity is on my short list of overused, ill-defined words. Washington main- tains a full lexicon of such words-a fair number of which find their way into common usage.

368

False color viewing device  

DOE Patents (OSTI)

This invention consists of a viewing device for observing objects in near-infrared false-color comprising a pair of goggles with one or more filters in the apertures, and pads that engage the face for blocking stray light from the sides so that all light reaching, the user`s eyes come through the filters. The filters attenuate most visible light and pass near-infrared (having wavelengths longer than approximately 700 nm) and a small amount of blue-green and blue-violet (having wavelengths in the 500 to 520 nm and shorter than 435 nm, respectively). The goggles are useful for looking at vegetation to identify different species and for determining the health of the vegetation, and to detect some forms of camouflage.

Kronberg, J.W.

1991-05-08T23:59:59.000Z

369

False color viewing device  

DOE Patents (OSTI)

A viewing device for observing objects in near-infrared false-color comprising a pair of goggles with one or more filters in the apertures, and pads that engage the face for blocking stray light from the sides so that all light reaching the user's eyes come through the filters. The filters attenuate most visible light and pass near-infrared (having wavelengths longer than approximately 700 nm) and a small amount of blue-green and blue-violet (having wavelengths in the 500 to 520 nm and shorter than 435 nm, respectively). The goggles are useful for looking at vegetation to identify different species and for determining the health of the vegetation, and to detect some forms of camouflage.

Kronberg, James W. (108 Independent Blvd., Aiken, SC 29801)

1992-01-01T23:59:59.000Z

370

False color viewing device  

DOE Patents (OSTI)

A viewing device for observing objects in near-infrared false-color comprising a pair of goggles with one or more filters in the apertures, and pads that engage the face for blocking stray light from the sides so that all light reaching the user's eyes come through the filters. The filters attenuate most visible light and pass near-infrared (having wavelengths longer than approximately 700 nm) and a small amount of blue-green and blue-violet (having wavelengths in the 500 to 520 nm and shorter than 435 nm, respectively). The goggles are useful for looking at vegetation to identify different species and for determining the health of the vegetation, and to detect some forms of camouflage. 7 figs.

Kronberg, J.W.

1992-10-20T23:59:59.000Z

371

K-Basin sludge treatment facility pump test report  

Science Conference Proceedings (OSTI)

Tests of a disc pump and a dual diaphragm pump are stymied by pumping a metal laden fluid. Auxiliary systems added to a diaphragm pump might enable the transfer of such fluids, but the additional system complexity is not desirable for remotely operated and maintained systems.

SQUIER, D.M.

1999-06-02T23:59:59.000Z

372

Annular linear induction pump with an externally supported duct  

DOE Patents (OSTI)

Several embodiments of an annular linear induction pump for pumping liquid metals are disclosed having the features of generally one pass flow of the liquid metal through the pump and an increased efficiency resulting from the use of thin duct walls to enclose the stator. The stator components of this pump are removable for repair and replacement.

Craig, Edwin R. (San Jose, CA); Semken, Robert S. (Idaho Falls, ID)

1979-01-01T23:59:59.000Z

373

Super Energy Saver Heat Pump with Dynamic Hybrid Phase Change ...  

Super Energy Saver Heat Pump with Dynamic Hybrid Phase Change Material United States Patent Application

374

Multiple Exciton Coherence Sizes in Photosynthetic Antenna Complexes viewed by Pump-Probe Spectroscopy  

E-Print Network (OSTI)

at the red wing.21 A total line width of ) 430 cm-1 and a homogeneous width 188 cm-1 was found in ref 17

Mukamel, Shaul

375

The Influence of Support Rods on the Rotation Speed of Savonius Rotors  

Science Conference Proceedings (OSTI)

When a Savonius rotor is used on a current meter as a sensor for fluid speed, it is usually surrounded by a number of support rods. These rods interfere with the flow to the rotor and, depending on their orientation to the flow, can be found to ...

H. D. Pite

1986-09-01T23:59:59.000Z

376

A Neural Network Model for the Tomographic Analysis of Irradiated Nuclear Fuel Rods  

SciTech Connect

A tomographic method based on a multilayer feed-forward artificial neural network is proposed for the reconstruction of gamma-radioactive fission product distribution in irradiated nuclear fuel rods. The quality of the method is investigated as compared to a conventional technique on experimental results concerning a Canada deuterium uranium reactor (CANDU)-type fuel rod irradiated in a TRIGA reactor.

Craciunescu, Teddy [National Institute of Nuclear Physics and Engineering (Romania)

2004-04-15T23:59:59.000Z

377

The effect of temperature and magnetic field on a quantum rod qubit  

Science Conference Proceedings (OSTI)

The Hamiltonian of a quantum rod (QR) with an ellipsoidal boundary is given after a coordinate transformation, which changes the ellipsoidal boundary into a spherical one. We obtain the eigenenergies and eigenfunctions of the ground and the first excited ... Keywords: Magnetic field, Quantum rod, Qubit, Temperature effect

Yong Sun; Zhao-Hua Ding; Jing-Lin Xiao

2013-02-01T23:59:59.000Z

378

B-spline goal-oriented error estimators for geometrically nonlinear rods  

Science Conference Proceedings (OSTI)

We consider goal-oriented a posteriori error estimators for the evaluation of the errors on quantities of interest associated with the solution of geometrically nonlinear curved elastic rods. For the numerical solution of these nonlinear one-dimensional ... Keywords: B-spline basis, Error estimators, Geometrically nonlinear rods, Goal-oriented a posteriori error estimation, Isogeometric analysis

L. Ded; H. A. Santos

2012-01-01T23:59:59.000Z

379

Rod Bundle Heat Transfer for Pressurized Water Reactors at Operating Conditions  

Science Conference Proceedings (OSTI)

Currently available heat transfer correlations for subcooled forced convection and subcooled boiling have not been validated with rod-array data at typical PWR fluid conditions. At the present time, rod bundle heat transfer processes cannot be analyzed with sufficient accuracy to make sound decisions regarding changes that might avoid an Axial Offset Anomaly (AOA).

2000-07-14T23:59:59.000Z

380

Homogenization of a thin plate reinforced with periodic families of rigid rods  

SciTech Connect

The asymptotics of the solution to the elastic bending problem for a thin plate reinforced with several periodic families of closely spaced but disjoint rods are constructed and justified, the result of homogenization being substantially different from the case when the rods are welded together into a single periodic mesh. The material in the rods is assumed to be appreciably more rigid than that in the plate. An averaged fourth-order differential operator is obtained from summing the nonelliptic operators generated by each of the families of the rods. This operator is shown to be elliptic if and only if the rods from at least two families are nonparallel. As a simplified example, the paper examines a similar stationary heat conduction problem. Bibliography: 24 titles.

Nazarov, Sergei A; Sweers, Guido H; Slutskij, Andrey S

2011-08-31T23:59:59.000Z

Note: This page contains sample records for the topic "rod pumps view" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


381

Electric Fuel Pump Condition Monitor System Using Electricalsignature Analysis  

DOE Patents (OSTI)

A pump diagnostic system and method comprising current sensing probes clamped on electrical motor leads of a pump for sensing only current signals on incoming motor power, a signal processor having a means for buffering and anti-aliasing current signals into a pump motor current signal, and a computer having a means for analyzing, displaying, and reporting motor current signatures from the motor current signal to determine pump health using integrated motor and pump diagnostic parameters.

Haynes, Howard D [Knoxville, TN; Cox, Daryl F [Knoxville, TN; Welch, Donald E [Oak Ridge, TN

2005-09-13T23:59:59.000Z

382

Centrifugal and Positive Displacement Charging Pump Maintenance Guide  

Science Conference Proceedings (OSTI)

In pressurized water reactors, charging pumps provide charging flow to the RCS and are also required to be available in the event of a loss of coolant accident (LOCA) event. Pump availability combined with modes of operation have made pump maintenance both frequent and costly. This report provides techniques to assist utilities in reducing maintenance costs for these pumps. Areas for improving reliability of these pumps include: excessive seal leakage, definition of acceptable seal leakage, packing life,...

1996-12-31T23:59:59.000Z

383

An Analysis of Efficiency Improvements in Residential Sized Heat Pumps  

E-Print Network (OSTI)

The objectives of this study included: (1) development of classes of heat pumps, (2) evaluation and selection of a suitable heat pump design model, (3) characterization of suitable baseline heat pump designs, (4) selection of design options that can be used to improve heat pump efficiency, and (5) development of heat pump designs to cover the whole spectrum of efficiencies available today and those that may be technologically feasible in the next few years.

O'Neal, D. L.; Boecker, C. L.; Murphy, W. E.; Notman, J. R.

1986-01-01T23:59:59.000Z

384

Alignment and operability analysis of a vertical sodium pump  

SciTech Connect

With the objective of identifying important alignment features of pumps such as FFTF, HALLAM, EBR II, PNC, PHENIX, and CRBR, alignment of the vertical sodium pump for the Clinch River Breeder Reactor Plant (CRBRP) is investigated. The CRBRP pump includes a flexibly coupled pump shaft and motor shaft, two oil-film tilting-pad hydrodynamic radial bearings in the motor plus a vertical thrust bearing, and two sodium hydrostatic bearings straddling the double-suction centrifugal impeller in the pump.

Gupta, V.K.; Fair, C.E.

1981-01-01T23:59:59.000Z

385

Measurements of Spin Dynamics Reveal that Shape of Excitons in Quantum Rod Heterostructures Changes with Size (Fact Sheet)  

Science Conference Proceedings (OSTI)

Using femtosecond cross-polarized transient grating (CPTG) and polarization anisotropy, NREL was able to probe the extent of electronic delocalization in CdSe/CdS quantum rod heterostructures (QRH) with a 'dot-in-rod' geometry.

Not Available

2012-06-01T23:59:59.000Z

386

Promotion of efficient heat pumps for heating (ProHeatPump)  

E-Print Network (OSTI)

and towns have (some) district heating, and DH currently supplies 1% of heating for buildings in Norway.2 to district heating if there is a supply. According to HP industry representatives, howeverProject Promotion of efficient heat pumps for heating (ProHeatPump) EIE/06/072 / S12

387

Experimental performance of solid-gas chemical heat pump in solar chemical heat pump dryer  

Science Conference Proceedings (OSTI)

A solar assisted chemical heat pump dryer has been designed, fabricated and tested. The performance of the system has been studied under the meteorological conditions of Malaysia. The system consists of four mean components: solar collector (evacuated ... Keywords: coefficient of performance, drying, energy density, evacuated tubes solar collector, reactor temperature, solid gas chemical heat pump

M. Ibrahim; K. Sopian; A. S. Hussein; W. R. W. Daud; A. Zaharim

2009-02-01T23:59:59.000Z

388

Projecting market demand for residential heat pumps  

SciTech Connect

Primarily because of technological improvements and sharp increases in energy prices after the 1970s energy crises, the sale of residential electric heat pumps rose ninefold from 1970 to 1983. This report describes current and future market demand for heat pumps used for space heating and cooling. A three-step approach was followed. In the first step, the historical growth of residential electric heat pumps was analyzed, and factors that may have affected market growth were examined. Also examined were installation trends of heat pumps in new single-family and multifamily homes. A market segmentation analysis was used to estimate market size by categories. In the second step, several methods for forecasting future market demand were reviewed and evaluated to select the most suitable one for this study. The discrete-choice approach was chosen. In the third step, a market penetration model based on selected discrete-choice methods was developed to project heat pump demand in key market segments such as home type (single-family or multifamily), new or existing construction, and race-ethnic origin of household (black, Hispanic, or white).

Teotia, A.P.S.; Raju, P.S.; Karvelas, D.; Anderson, J.

1987-04-01T23:59:59.000Z

389

Cold Climates Heat Pump Design Optimization  

SciTech Connect

Heat pumps provide an efficient heating method; however they suffer from sever capacity and performance degradation at low ambient conditions. This has deterred market penetration in cold climates. There is a continuing effort to find an efficient air source cold climate heat pump that maintains acceptable capacity and performance at low ambient conditions. Systematic optimization techniques provide a reliable approach for the design of such systems. This paper presents a step-by-step approach for the design optimization of cold climate heat pumps. We first start by describing the optimization problem: objective function, constraints, and design space. Then we illustrate how to perform this design optimization using an open source publically available optimization toolbox. The response of the heat pump design was evaluated using a validated component based vapor compression model. This model was treated as a black box model within the optimization framework. Optimum designs for different system configurations are presented. These optimum results were further analyzed to understand the performance tradeoff and selection criteria. The paper ends with a discussion on the use of systematic optimization for the cold climate heat pump design.

Abdelaziz, Omar [ORNL; Shen, Bo [ORNL

2012-01-01T23:59:59.000Z

390

Solar-powered turbocompressor heat pump system  

DOE Patents (OSTI)

The turbocompressor comprises a power turbine and a compressor turbine having respective rotors and on a common shaft, rotatably supported by bearings. A first working fluid is supplied by a power loop and is expanded in the turbine. A second working fluid is compressed in the turbine and is circulated in a heat pump loop. A lubricant is mixed with the second working fluid but is excluded from the first working fluid. The bearings are cooled and lubricated by a system which circulates the second working fluid and the intermixed lubricant through the bearings. Such system includes a pump, a thermostatic expansion valve for expanding the working fluid into the space between the bearings, and a return conduit system for withdrawing the expanded working fluid after it passes through the bearings and for returning the working fluid to the evaporator. A shaft seal excludes the lubricant from the power turbine. The power loop includes a float operable by liquid working fluid in the condenser for controlling a recirculation valve so as to maintain a minimum liquid level in the condenser, while causing a feed pump to pump most of the working fluid into the vapor generator. The heat pump compressor loop includes a float in the condenser for operating and expansion valve to maintain a minimum liquid working fluid level in the condenser while causing most of the working fluid to be expanded into the evaporator.

Landerman, A.M.; Biancardi, F.R.; Melikian, G.; Meader, M.D.; Kepler, C.E.; Anderson, T.J.; Sitler, J.W.

1982-08-12T23:59:59.000Z

391

APT/LEDA RFQ vacuum pumping system  

DOE Green Energy (OSTI)

This paper describes the design and fabrication of a vacuum pumping system for the ATP/LEDA (Low Energy Demonstration Accelerator) RFQ (Radio Frequency Quadrupole) linac. Resulted from the lost proton beam, gas streaming from the LEBT (Low Energy Beam Transport) and out-gassing from the surfaces of the RFQ cavity and vacuum plumbing, the total gas load will be on the order of 7.2 x 10{sup -4} Torr-liters/sec, consisting mainly of hydrogen. The system is designed to pump on a continual basis with redundancy to ensure that the minimal operating vacuum level of 1 x 10{sup -6} Torr is maintained even under abnormal conditions. Details of the design, performance analysis and the preliminary test results of the cryogenic pumps are presented.

Shen, S., LLNL

1997-07-21T23:59:59.000Z

392

Frostless heat pump having thermal expansion valves  

DOE Patents (OSTI)

A heat pump system having an operable relationship for transferring heat between an exterior atmosphere and an interior atmosphere via a fluid refrigerant and further having a compressor, an interior heat exchanger, an exterior heat exchanger, a heat pump reversing valve, an accumulator, a thermal expansion valve having a remote sensing bulb disposed in heat transferable contact with the refrigerant piping section between said accumulator and said reversing valve, an outdoor temperature sensor, and a first means for heating said remote sensing bulb in response to said outdoor temperature sensor thereby opening said thermal expansion valve to raise suction pressure in order to mitigate defrosting of said exterior heat exchanger wherein said heat pump continues to operate in a heating mode.

Chen, Fang C [Knoxville, TN; Mei, Viung C [Oak Ridge, TN

2002-10-22T23:59:59.000Z

393

Optical pumping production of spin polarized hydrogen  

DOE Green Energy (OSTI)

There has been much interest recently in the production of large quantities of spin polarized hydrogen in various fields, including controlled fusion, quantum fluids, high energy, and nuclear physics. One promising method for the development of large quantities of spin polarized hydrogen is the utilization of optical pumping with a laser. Optical pumping is a process in which photon angular momentum is converted into electron and nuclear spin. The advent of tunable CW dye lasers (approx. 1 watt) allows the production of greater than 10/sup 18/ polarized atoms/sec. We have begun a program at Princeton to investigate the physics and technology of using optical pumping to produce large quantities of spin polarized hydrogen. Initial experiments have been done in small closed glass cells. Eventually, a flowing system, open target, or polarized ion source could be constructed.

Knize, R.J.; Happer, W.; Cecchi, J.L.

1984-09-01T23:59:59.000Z

394

Feed-Pump Hydraulic Performance and Design Improvement, Phase I:  

Office of Scientific and Technical Information (OSTI)

Feed-Pump Hydraulic Performance Feed-Pump Hydraulic Performance and Design Improvement, Phase I: J2esearch Program Design Volume 2 EPRI EPRI CS-2323 Volume 2 Project 1884-6 Final Report March 1982 Keywords: Feed Pumps Feed Pump Reliability Feed Pump Hydraulics Feed Pump Design Feed Pump Research Feed Pump Specifications Prepared by Borg-Warner Corporation (Byron Jackson Pump Division and Borg-Warner Research Center) Carson, California and Massa^ f Technology Cambri__ . s ,-T. a a *a_^"nt.- ji^, w « ' jm.m ^j.^M\MMMim^mjii'mmmjmiiiimm\i- " I E CT R I C P 0 W E R R E S E A R C H I N ST ITO T E DISCLAIMER This report was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor any agency Thereof, nor any of their employees,

395

Evaluation of Manufacturability of Embedded Sensors and Controls with Canned Rotor Pump System  

SciTech Connect

This report documents the current status of fabrication and assembly planning for the magnetic bearing, canned rotor pump being used as a demonstration platform for deeply integrating I&C into nuclear power plant components. The report identifies material choices and fabrication sequences for all of the required parts and the issues that need to be either resolved or accommodated during the manufacturing process. Down selection between material options has not yet been performed. Potential suppliers for all of the necessary materials have also been identified. The assembly evaluation begins by logically subdividing the pump into modules, which are themselves decomposed into individual parts. Potential materials and fabrication processes for each part in turn are then evaluated. The evaluation process includes assessment of the environmental compatibility requirements and the tolerances available for the selected fabrication processes. A description of the pump power/control electronics is also provided. The report also includes exploded views of the modules that show the integration of the various parts into modules that are then assembled to form the pump. Emphasis has been placed on thermal environment compatibility and the part dimensional changes during heat-up. No insurmountable fabrication or assembly challenges have been identified.

Kisner, Roger A [ORNL; Fugate, David L [ORNL; Melin, Alexander M [ORNL; Holcomb, David Eugene [ORNL; Wilson, Dane F [ORNL; Silva, Pamela C [ORNL; Cruz Molina, Carola [ORNL

2013-07-01T23:59:59.000Z

396

Examination of cadmium safety rod thermal test specimens and failure mechanism evaluation  

Science Conference Proceedings (OSTI)

The reactor safety rods may be subjected to high temperatures due to gamma heating after the core coolant level has dropped during the ECS phase of a hypothetical LOCA event. Accordingly, an experimental cadmium safety rod testing subtask was established as part of a task to address the response of reactor core components to this accident. Companion reports describe the experiments and a structural evaluation (finite element analysis) of the safety rod. This report deals primarily with the examination of the test specimens, evaluation of possible failure mechanisms, and confirmatory separate effects experiments. It is concluded that the failures observed in the cadmium safety rod thermal tests which occurred at low temperature (T 800{degrees}C) with fast thermal ramp rates are concluded to be mechanical in nature without significant environmental degradation. Based on these tests, tasks were initiated to design and manufacture B{sub 4}C safety rods to replace the cadmium safety rods. The B{sub 4}C safety rods have been manufactured at this time and it is currently planned to charge them to the reactor in the near future. 60 refs.

Thomas, J.K.; Peacock, H.B.; Iyer, N.C.

1992-01-01T23:59:59.000Z

397

Internal hydriding in irradiated defected Zircaloy fuel rods: A review (LWBR Development Program)  

DOE Green Energy (OSTI)

Although not a problem in recent commercial power reactors, including the Shippingport Light Water Breeder Reactor, internal hydriding of Zircaloy cladding was a persistent cause of gross cladding failures during the 1960s. It occurred in the fuel rods of water-cooled nuclear power reactors that had a small cladding defect. This report summarizes the experimental findings, causes, mechanisms, and methods of minimizing internal hydriding in defected Zircaloy-clad fuel rods. Irradiation test data on the different types of defected fuel rods, intentionally fabricated defected and in-pile operationally defected rods, are compared. Significant factors affecting internal hydriding in defected Zircaloy-clad fuel rods (defect hole size, internal and external sources of hydrogen, Zircaloy cladding surface properties, nickel alloy contamination of Zircaloy, the effect of heat flux and fluence) are discussed. Pertinent in-pile and out-of-pile test results from Bettis and other laboratories are used as a data base in constructing a qualitative model which explains hydrogen generation and distribution in Zircaloy cladding of defected water-cooled reactor fuel rods. Techniques for minimizing internal hydride failures in Zircaloy-clad fuel rods are evaluated.

Clayton, J C

1987-10-01T23:59:59.000Z

398

Rotordynamics of Twin-Screw Pumps  

E-Print Network (OSTI)

Twin-screw pumps are positive displacement machines. Two meshing screws connected by timing gears convey the fluid trapped in the screw chambers axially from suction to discharge and force it out against the back pressure. Because of the screw geometry, the circumferential pressure field around the screws is not balanced, resulting in net dynamic and static pressures applied on the rotors. The research work presented here aims at building and verifying a model to predict both: (1) the exciting lateral hydrodynamic forces produced by the unbalanced pressure field, and (2) the rotor response due to those forces. The model rests on the screw pump hydraulic models for predicting the pressure in the screw chambers as a function of the discharge pressure. These models are extended to predict the steady state dynamic pressure field as a function of the rotational angle of the rotor. The dynamic force resulting from the dynamic pressure field is calculated and applied to the rotor as a set of super-synchronous periodic forces. The structural model of the screw, although nonsymmetrical, was found to be accurately represented by an axisymmetric equivalent structure. The rotor response to the dynamic super-synchronous forces is calculated to predict the pump rotordynamic behavior. The work in this dissertation presents: (1) the axisymmetric structural model of the rotors (2) the proposed dynamic pressure model, (3) the screw pump rotor response, (4) the experimental validation of the dynamic pressure model and rotor response. The topic of twin-screw pump rotordynamics is absent from the literature. The original contribution of the work presented in this dissertation to the field of rotordynamics includes: (1) demonstrating the adequacy of an axisymmetric model for modeling the screw section, (2) developing a model for predicting the dynamic pressure field around the screws, (3) characterization of the dynamic forces (synchronous and its harmonics) applied at the screw pump rotors, (4) predicting the dynamic response of twin-screw pump rotors due to hydrodynamic forces, (5) measuring the axial dynamic pressure in two circumferential planes around the screws to verify pressure predictions, (6) measuring the dynamic response of twin-screw pump rotor.

Aboel Hassan Muhammed, Ameen

2013-05-01T23:59:59.000Z

399

High aspect ratio, remote controlled pumping assembly  

DOE Patents (OSTI)

A miniature dual syringe-type pump assembly is described which has a high aspect ratio and which is remotely controlled, for use such as in a small diameter penetrometer cone or well packer used in water contamination applications. The pump assembly may be used to supply and remove a reagent to a water contamination sensor, for example, and includes a motor, gearhead and motor encoder assembly for turning a drive screw for an actuator which provides pushing on one syringe and pulling on the other syringe for injecting new reagent and withdrawing used reagent from an associated sensor. 4 figs.

Brown, S.B.; Milanovich, F.P.

1995-11-14T23:59:59.000Z

400

Heat Pump for High School Heat Recovery  

E-Print Network (OSTI)

The heat pump system used for recycling and reusing waste heat in s high school bathroom was minutely analyzed in its coefficient of performance, onetime utilization ratio of energy, economic property and so on. The results showed that this system has good economic property, can conserve energy and protects the environment. Therefore, there is a large potential for its development. In addition, three projects using this system are presented and contrasted, which indicate that a joint system that uses both the heat pump and heat exchanger to recycle waste heat is a preferable option.

Huang, K.; Wang, H.; Zhou, X.

2006-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "rod pumps view" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


401

Heat reclaimer for a heat pump  

Science Conference Proceedings (OSTI)

This invention relates to a heat reclaiming device for a heat pump. The heat reclaimer is able to absorb heat from the compressor by circulating cooling fluid through a circuit which is mounted in good heat transfer relationship with the condenser, then around the shell of the motor-compressor and lastly around the hollow tube which connects the condenser to the compressor. The reclaiming circuit is connected into a fluid circulating loop which is used to supply heat to the evaporator coil of the heat pump.

Beacham, W.H.

1981-02-03T23:59:59.000Z

402

Informative Views and Sequential Recognition  

E-Print Network (OSTI)

Informative Views and Sequential Recognition Tal Arbel and Frank P. Ferrie TR-CIM-95-10 Nov. 1995 3 Telephone: 514 398-6319 Telex: 05 268510 FAX: 514 398-7348 Email: cim@cim.mcgill.ca #12;Informative Views

Dudek, Gregory

403

Examination of cadmium safety rod thermal test specimens and failure mechanism evaluation  

SciTech Connect

The reactor safety rods may be subjected to high temperatures due to gamma heating after the core coolant level has dropped during the ECS phase of a hypothetical LOCA event. Accordingly, an experimental cadmium safety rod testing subtask was established as part of a task to address the response of reactor core components to this accident. Companion reports describe the experiments and a structural evaluation (finite element analysis) of the safety rod. This report deals primarily with the examination of the test specimens, evaluation of possible failure mechanisms, and confirmatory separate effects experiments. It is concluded that the failures observed in the cadmium safety rod thermal tests which occurred at low temperature (T < 600{degrees}C) with slow thermal ramp rates (slow cladding strain rates) resulted from localized dissolution of the stainless steel cladding by the cadmium/aluminum solution and subsequent ductility exhaustion and rupture. The slow thermal ramp rate is believed to be the root cause for the failures; specifically, the slow ramp rate led to localized cladding shear deformation which ruptured the protective oxide film on the cladding inner surface and allowed dissolution to initiate. The test results and proposed failure mechanism support the conclusion that the rods would not fail below 500{degrees}C even at slow ramp rates. The safety rod thermal test specimen failures which occurred at high temperature (T > 800{degrees}C) with fast thermal ramp rates are concluded to be mechanical in nature without significant environmental degradation. Based on these tests, tasks were initiated to design and manufacture B{sub 4}C safety rods to replace the cadmium safety rods. The B{sub 4}C safety rods have been manufactured at this time and it is currently planned to charge them to the reactor in the near future. 60 refs.

Thomas, J.K.; Peacock, H.B.; Iyer, N.C.

1992-01-01T23:59:59.000Z

404

Synthesis and characterization of nano ZnO rods via microwave assisted chemical precipitation method  

Science Conference Proceedings (OSTI)

A microwave assisted chemical precipitation method has been employed for the synthesis of nano zinc oxide rods by reacting zinc nitrate and potassium hydroxide. The amount of potassium hydroxide was adjusted for three different pHs to achieve ZnO nano rods with varying aspect ratio. The mechanism of growth of nano rods is explained briefly. The average crystallite size of the as synthesized samples was analyzed by means of powder XRD pattern and estimated to vary from 25.6 nm to 43.1 nm. The existence of rods was confirmed using scanning electron microscopy (SEM). The samples were also analyzed using FT-IR. The optical properties of the samples were also studied by means of UV-visible spectra and Room Temperature Photo Luminescence studies. The band gap of the samples was determined from the DRS spectrum. A strong near band emission peaks due to surface defects are observed in the PL spectrum. - Graphical abstract: At the solution pH of 11 and 9, tetrapod-like and flower-like ZnO nano rods were formed along with separated rods respectively due to the formation of activated nuclei of different sizes. Highlights: Black-Right-Pointing-Pointer Increase in alkalinity of the precursor solution results in longer rods. Black-Right-Pointing-Pointer Beyond a saturation limit, the excess of added OH{sup -} ions inhibited the growth of rods. Black-Right-Pointing-Pointer Keeping all parameters the same, the alkalinity can only modify the aspect ratio of the rods and not their morphology.

Uma Sangari, N., E-mail: umasangariselvakumar@gmail.com [Department of Chemistry, S.F.R. College for Women, Sivakasi 626123 (India); Chitra Devi, S. [Department of Chemistry, S.F.R. College for Women, Sivakasi 626123 (India)

2013-01-15T23:59:59.000Z

405

Extreme high-head portables provide more pumping options  

SciTech Connect

Three years ago, Godwin Pumps, one of the largest manufacturers of portable pumps, introduced its Extreme Duty High Lift (HL) series of pumps and more mines are finding unique applications for these pumps. The Extreme HL series is a range single-stage Dri-Prime pumps with heads up to 600 feet and flows up to 5,000 gallons per minute. The American Coal Co.'s Galatia mine, an underground longwall mine in southern Illinois, used an HL 160 to replace a multiple-staged centrifugal pump. It provided Galatia with 1,500 gpm at 465 ft. 3 photos.

Fiscor, S.

2006-10-15T23:59:59.000Z

406

Deep water pipe, pump, and mooring study: Ocean Thermal Energy Conversion program. Final report  

DOE Green Energy (OSTI)

The ocean engineering issues affecting the design, construction, deployment, and operation of Ocean Thermal Energy Conversion (OTEC) power plants are of key importance. This study addressed the problems associated with the conceptual design of the deep-water pipe, cold-water-pumping, and platform mooring arrangements. These subsystems fall into a natural grouping since the parameters affecting their design are closely related to each other and to the ocean environment. Analysis and evaluations are provided with a view toward judging the impact of the various subsystems on the overall plant concept and to provide an estimate of material and construction cost. Parametric data is provided that describes mooring line configurations, mooring line loads, cold water pipe configurations, and cold water pumping schemes. Selected parameters, issues, and evaluation criteria are used to judge the merits of candidate concepts over a range of OTEC plant size from 100 MWe to 1000 MWe net output power.

Little, T.E.; Marks, J.D.; Wellman, K.H.

1976-06-01T23:59:59.000Z

407

Ventilating system for reprocessing of nuclear fuel rods  

Science Conference Proceedings (OSTI)

In a nuclear facility such as a reprocessing plant for nuclear fuel rods, the central air cleaner discharging ventilating gas to the atmosphere must meet preselected standards not only as to the momentary concentration of radioactive components, but also as to total quantity per year. In order to comply more satisfactorily with such standards, reprocessing steps are conducted by remote control in a plurality of separate compartments. The air flow for each compartment is regulated so that the air inventory for each compartment has a slow turnover rate of more than a day but less than a year, which slow rate is conveniently designated as quasihermetic sealing. The air inventory in each such compartment is recirculated through a specialized processing unit adapted to cool and/or filter and/or otherwise process the gas. Stale air is withdrawn from such recirculating inventory and fresh air is injected (eg., By the less than perfect sealing of a compartment) into such recirculating inventory so that the air turnover rate is more than a day but less than a year. The amount of air directed through the manifold and duct system from the reprocessing units to the central air cleaner is less than in reprocessing plants of conventional design.

Szulinski, M.J.

1981-07-07T23:59:59.000Z

408

Comparison of energy efficiency between variable refrigerant flow systems and ground source heat pump systems  

E-Print Network (OSTI)

Performance of ground source heat pump system in a near-zerosimulation tool for ground- source heat pump system designflow systems and ground source heat pump systems Abstract

Hong, Tainzhen

2010-01-01T23:59:59.000Z

409

Heat pump having improved defrost system  

DOE Patents (OSTI)

A heat pump system includes, in an operable relationship for transferring heat between an exterior atmosphere and an interior atmosphere via a fluid refrigerant: a compressor; an interior heat exchanger; an exterior heat exchanger; an accumulator; and means for heating the accumulator in order to defrost the exterior heat exchanger. 2 figs.

Chen, F.C.; Mei, V.C.; Murphy, R.W.

1998-12-08T23:59:59.000Z

410

Heat pump having improved defrost system  

DOE Patents (OSTI)

A heat pump system includes, in an operable relationship for transferring heat between an exterior atmosphere and an interior atmosphere via a fluid refrigerant: a compressor; an interior heat exchanger; an exterior heat exchanger; an accumulator; and means for heating the accumulator in order to defrost the exterior heat exchanger.

Chen, Fang C. (Knoxville, TN); Mei, Viung C. (Oak Ridge, TN); Murphy, Richard W. (Knoxville, TN)

1998-01-01T23:59:59.000Z

411

Vertical pump with free floating check valve  

DOE Patents (OSTI)

A vertical pump with a bottom discharge having a free floating check valve isposed in the outlet plenum thereof. The free floating check valve comprises a spherical member with a hemispherical cage-like member attached thereto which is capable of allowing forward or reverse flow under appropriate conditions while preventing reverse flow under inappropriate conditions.

Lindsay, Malcolm (O' Hara Township, Allegheny County, PA)

1980-01-01T23:59:59.000Z

412

Pumped-Storage Planning and Evaluation Guide  

Science Conference Proceedings (OSTI)

Utilities now have an easy-to-use evaluation and costing methodology that allows users to better estimate pumped-storage potential. This guide will enable utilities to accurately screen potential sites to determine which candidates deserve more-detailed studies.

1989-12-15T23:59:59.000Z

413

Recent Development in Hydrogen Peroxide Pumped Propulsion  

DOE Green Energy (OSTI)

This paper describes the development of a lightweight high performance pump-fed divert and attitude control system (DACS). Increased kinetic Kill Vehicles (KV) capabilities (higher .v and acceleration capability) will especially be needed for boost phase engagements where a lower mass KV DACS enables smaller overall interceptors. To increase KV performance while reducing the total DACS dry mass (<10 kg), requires a design approach that more closely emulates those found in large launch vehicles, where pump-fed propulsion enables high propellant-mass-fraction systems. Miniaturized reciprocating pumps, on a scale compatible with KV applications, offer the potential of a lightweight DACS with both high {Delta}v and acceleration capability, while still enabling the rapid pulsing of the divert thrusters needed in the end-game fly-in. Pumped propulsion uses lightweight low-pressure propellant tanks, as the main vehicle structure and eliminates the need for high-pressure gas bottles, reducing mass and increasing the relative propellant load. Prior work used hydrazine and demonstrated a propellant mass fraction >0.8 and a vehicle propulsion dry mass of {approx}3 kg. Our current approach uses the non-toxic propellants 90% hydrogen peroxide and kerosene. This approach enables faster development at lower costs due to the ease of handling. In operational systems these non-toxic propellants can simplify the logistics for manned environments including shipboard applications. This DACS design configuration is expected to achieve sufficient mass flows to support divert thrusters in the 1200 N to 1330 N (270 lbf to 300 lbf) range. The DACS design incorporates two pairs of reciprocating differential piston pumps (oxidizer and fuel), a warm-gas drive system, compatible bi-propellant thrusters, lightweight valves, and lightweight low-pressure propellant tanks. This paper summarizes the current development status and plans.

Ledebuhr, A G; Antelman, D R; Dobie, D W; Gorman, T S; Jones, M S; Kordas, J F; McMahon, D H; Ng, L C; Nielsen, D P; Ormsby, A E; Pittenger, L C; Robinson, J A; Skulina, K M; Taylor, W G; Urone, D A; Wilson, B A

2004-03-22T23:59:59.000Z

414

Thermocline Forced by Varying Ekman Pumping. Part II: Annual and Decadal Ekman Pumping  

Science Conference Proceedings (OSTI)

Thermocline variability forced by zonally uniform Ekman pumping with annual to decadal periods is investigated. Both analytical and numerical solutions are obtained by the method of characteristics. As found in Part I, there is little thermocline ...

Zhengyu Liu

1993-12-01T23:59:59.000Z

415

Production Test No. 105-565-A: Horizontal rod conversion---old piles  

SciTech Connect

In numerous instances the graphite growth in the older piles has deformed the horizontal control rod holes with a resultant jamming of the rods and overstressing of the rods and thimbles. In addition, special operating procedures to maintain very low differential pressures are required with the present allowed maximum graphite temperatures to prevent collapse of the thimbles because of loss of strength at this temperature. This is currently a limit to the power level of the H Pile. This report discusses a new rod tip and seal which have been developed to allow the removal of the thimble and permit sealing at the pile face. This will allow advantage to be taken of any future increases in maximum graphite temperature with proportional increases in allowable power.

Call, R.L.; Rector, J.H.; Lovington, R.C.

1954-02-15T23:59:59.000Z

416

Assessment of helical-cruciform fuel rods for high power density LWRs  

E-Print Network (OSTI)

In order to significantly increase the power density of Light Water Reactors (LWRs), the helical-cruciform (HC) fuel rod assembly has been proposed as an alternative to traditional fuel geometry. The HC assembly is a ...

Conboy, Thomas M

2010-01-01T23:59:59.000Z

417

Core design study of a supercritical light water reactor with double row fuel rods  

SciTech Connect

An equilibrium core for supercritical light water reactor has been designed. A novel type of fuel assembly with dual rows of fuel rods between water rods is chosen and optimized to get more uniform assembly power distributions. Stainless steel is used for fuel rod cladding and structural material. Honeycomb structure filled with thermal isolation is introduced to reduce the usage of stainless steel and to keep moderator temperature below the pseudo critical temperature. Water flow scheme with ascending coolant flow in inner regions is carried out to achieve high outlet temperature. In order to enhance coolant outlet temperature, the radial power distributions needs to be as flat as possible through operation cycle. Fuel loading pattern and control rod pattern are optimized to flatten power distribution at inner regions. Axial fuel enrichment is divided into three parts to control axial power peak, which affects maximum cladding surface temperature. (authors)

Zhao, C.; Wu, H.; Cao, L.; Zheng, Y. [School of Nuclear Science and Technology, Xi'an Jiaotong Univ., No. 28, Xianning West Road, Xi'an, ShannXi, 710049 (China); Yang, J.; Zhang, Y. [China Nuclear Power Technology Research Inst., Yitian Road, ShenZhen, GuangDong, 518026 (China)

2012-07-01T23:59:59.000Z

418

Laboratory study of magnetic properties of hysteresis rods for attitude control systems of minisatellites  

Science Conference Proceedings (OSTI)

Results of the experimental determination of the parameters of hysteresis rods made of soft magnetic materials used in passive attitude control systems to damp the perturbed motion of satellites relative to their center of mass are described. Based on ...

D. S. Ivanov; M. Yu. Ovchinnikov; V. I. Pen'Kov

2013-01-01T23:59:59.000Z

419

THE DEVELOPMENT OF COMPOSITE CONTROL RODS FOR WATER-COOLED POWER REACTORS  

SciTech Connect

The phrase "composite control rod" is used to describe a hafnium-tipped titanium-boron control component with a titanium cladding. Blades for such cortrol rods were successfully prepared in cooperation with the Battelle Memorial Institute by a picture-frame rolling technique. The rolling packs, which are machined from type 304 stainless steel, contain slntered titanium boron and wrought hafnium core materials in a commercially pure titanium envelope. Such packs are evacuated, sealod off, and rolled at 16O0 F with a total reduction of 3/1 using 20% reduction per roll setting. Postfabrication treatments include mechanical removal of the stainless steel envelope, flat annealing, machining, and stress relief annealing. Data on the mechanical properties, corrosion performance, thermal cycling resistance, and irradiation damage resistance of composite control rod components are presented. This information strongly indicates that composite control rods will perform satisfactorily in water-coolod reactors. (aut)h

Ray, W.E.

1957-10-15T23:59:59.000Z

420

Assembly fixture for cross-shaped control rods of boiling water nuclear reactors  

Science Conference Proceedings (OSTI)

An assembly fixture is disclosed for cross-shaped control rods of boiling-water nuclear reactors with an upper core grid mesh for holding a core cell formed of four fuel assemblies having a gap therebetween and means disposed beneath the reactor core for driving the control rods in the gap, including a frame having corners formed therein, the frame being substantially the size of a core cell and being disposable on the core grid, templates diagonally oppositely disposed on the frame and extending into the core cell for lateral guidance of the control rods, stops for the control rods disposed on the templates, and a carrying handle having a first portion thereof being pivotable at one of the corners of the frame and a second portion thereof being locked to an opposite corner of the frame in a disassembled condition and swung out of the locked condition in an assembled condition.

Lippert, H.J.

1983-10-18T23:59:59.000Z

Note: This page contains sample records for the topic "rod pumps view" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


421

The Case for Using Blunt-Tipped Lightning Rods as Strike Receptors  

Science Conference Proceedings (OSTI)

Conventional lightning rods used in the United States have sharp tips, a practice derived from Benjamin Franklin's discovery of a means to obtain protection from lightning. However, the virtue of sharp tips for strike reception has never been ...

C. B. Moore; G. D. Aulich; William Rison

2003-07-01T23:59:59.000Z

422

Installing and Operating an Efficient Swimming Pool Pump | Department of  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Installing and Operating an Efficient Swimming Pool Pump Installing and Operating an Efficient Swimming Pool Pump Installing and Operating an Efficient Swimming Pool Pump May 29, 2012 - 7:54pm Addthis Photo courtesy iStockphoto.com Photo courtesy iStockphoto.com What does this mean for me? Use the smallest size pump possible for your swimming pool. Reduce the time your pool pump operates to save money while still keeping your pool clean. You can save energy and maintain a comfortable swimming pool temperature by using a smaller, higher efficiency pump and by operating it less. In a study of 120 pools by the Center for Energy Conservation at Florida Atlantic University, some pool owners saved as much as 75% of their original pumping bill when they used these energy conservation measures (see table below). Table 1. Savings from Pump Conservation Measures

423

Building Technologies Office: Cold Climate Heat Pump Research Project  

NLE Websites -- All DOE Office Websites (Extended Search)

Cold Climate Heat Pump Cold Climate Heat Pump Research Project to someone by E-mail Share Building Technologies Office: Cold Climate Heat Pump Research Project on Facebook Tweet about Building Technologies Office: Cold Climate Heat Pump Research Project on Twitter Bookmark Building Technologies Office: Cold Climate Heat Pump Research Project on Google Bookmark Building Technologies Office: Cold Climate Heat Pump Research Project on Delicious Rank Building Technologies Office: Cold Climate Heat Pump Research Project on Digg Find More places to share Building Technologies Office: Cold Climate Heat Pump Research Project on AddThis.com... About Take Action to Save Energy Partner with DOE Activities Appliances Research Building Envelope Research Windows, Skylights, & Doors Research Space Heating & Cooling Research

424

Portland General Electric - Heat Pump Rebate Program | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Portland General Electric - Heat Pump Rebate Program Portland General Electric - Heat Pump Rebate Program Portland General Electric - Heat Pump Rebate Program < Back Eligibility Residential Savings Category Heating & Cooling Commercial Heating & Cooling Heat Pumps Program Info State Oregon Program Type Utility Rebate Program Rebate Amount $200 Provider Portland General Electric Portland General Electric's (PGE) Heat Pump Rebate Program offers residential customers a $200 rebate for an energy-efficient heat pump installed to PGE's standards by a PGE-approved contractor. The rebate is also available for replacing older, inefficient heat pump units. See the program web site or contact the utility for additional information on program incentives and guidelines. Other Information Heat pumps: 7.7 HSPF and 13 SEER minimum

425

Operating and Maintaining Your Heat Pump | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Operating and Maintaining Your Heat Pump Operating and Maintaining Your Heat Pump Operating and Maintaining Your Heat Pump June 24, 2012 - 3:22pm Addthis Changing filters regularly is an important part of maintaining a heat pump system. | Photo courtesy of ©iStockphoto/BanksPhotos Changing filters regularly is an important part of maintaining a heat pump system. | Photo courtesy of ©iStockphoto/BanksPhotos What does this mean for me? Learn to operate and maintain your heat pump system properly to maximize energy and money savings. You can do many operational and maintenance tasks yourself. Proper operation of your heat pump will save energy. Do not set back the heat pump's thermostat if it causes the backup heating to come on -- backup heating systems are usually more expensive to operate. Continuous indoor

426

Rock Hill Utilities - Water Heater and Heat Pump Rebate Program |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Rock Hill Utilities - Water Heater and Heat Pump Rebate Program Rock Hill Utilities - Water Heater and Heat Pump Rebate Program Rock Hill Utilities - Water Heater and Heat Pump Rebate Program < Back Eligibility Residential Savings Category Heating & Cooling Commercial Heating & Cooling Heat Pumps Appliances & Electronics Water Heating Program Info State South Carolina Program Type Utility Rebate Program Rebate Amount Water Heater: up to $275 Heat Pump Replacement: $400 Provider Rock Hill Utilities Through the SmartChoice program, Rock Hill Utilities offers rebates for water heater and heat pump replacements. Information on financing for heat pumps can also be found on the web site listed above. If both the water heater and heat pump are purchased then the customer may qualify for the Great Rate program. The Great Rate program will add a 25% discount to a

427

Red River Valley REA- Heat Pump Loan Program  

Energy.gov (U.S. Department of Energy (DOE))

The Red River Valley Rural Electric Association (RRVREA) offers a loan program to its members for air-source and geothermal heat pumps. Loans are available for geothermal heat pumps at a 5% fixed...

428

A Lithium Getter Pump System ---- nventors Richard Majeski, Eugene...  

NLE Websites -- All DOE Office Websites (Extended Search)

A Lithium Getter Pump System ---- nventors Richard Majeski, Eugene Kearns, and John Schmitt This invention is a device to pump volatile gases that bond to lithium in a high vacuum...

429

DOE Webinar - Residential Geothermal Heat Pump Retrofits (Presentation)  

DOE Green Energy (OSTI)

This presentation was given December 14, 2010, as part of DOE's Webinar series. The presentation discusses geothermal heat pump retrofits, technology options, and an overview of geothermal energy and geothermal heat pumps.

Anderson, E. R.

2010-12-14T23:59:59.000Z

430

Building Technologies Office: Ground Source Heap Pump Data Mining Research  

NLE Websites -- All DOE Office Websites (Extended Search)

Ground Source Heap Pump Ground Source Heap Pump Data Mining Research Project to someone by E-mail Share Building Technologies Office: Ground Source Heap Pump Data Mining Research Project on Facebook Tweet about Building Technologies Office: Ground Source Heap Pump Data Mining Research Project on Twitter Bookmark Building Technologies Office: Ground Source Heap Pump Data Mining Research Project on Google Bookmark Building Technologies Office: Ground Source Heap Pump Data Mining Research Project on Delicious Rank Building Technologies Office: Ground Source Heap Pump Data Mining Research Project on Digg Find More places to share Building Technologies Office: Ground Source Heap Pump Data Mining Research Project on AddThis.com... About Take Action to Save Energy Partner with DOE Activities

431

Apparatus and method for preventing the rotation of rods used in nuclear fuel assemblies  

Science Conference Proceedings (OSTI)

Apparatus and method for preventing the rotation of one or more elongated rods used in nuclear fuel assemblies include an end plug secured to one longitudinal end of such an elongated rod and having an out-of-cavity, non-round structure affixed thereto and configured to mate with a complementary shaped structure in a lower tie plate of a nuclear fuel assembly in such a manner as to prevent the rotation of the rod about its longitudinal axis. In one embodiment, the end plug includes a pair of flats formed on a portion of the end plug and configured to abut against a pair of flats formed on the outer surface of a cylindrical boss or sleeve of the lower tie plate, thereby to prevent the rotation of the rod. In another embodiment, four grooves, disposed 90/sup 0/ apart about the periphery of an end plug of a rod form a spline. The grooves are configured to receive four, radially inwardly protruding, key members disposed 90/sup 0/ apart about the periphery of a sleeve secured to the lower tie plate, thereby to prevent the rotation of the rod. In a further embodiment, a sleeve is secured to an end plug of a rod and includes four elongated slots disposed 90/sup 0/ apart about the periphery of the sleeve and configured in width, depth and spacing to receive and mate with four web portions of the lower tie plate of the nuclear fuel assembly, thereby to secure the rod against rotation about its longitudinal axis.

Pilgrim Jr., L. G.; Jackson, L. F.

1985-01-08T23:59:59.000Z

432

Fuel Reliability Program: Fuel Rod Guided-Wave Inspection System for an Industrial Environment  

Science Conference Proceedings (OSTI)

To minimize the leakage of radioactive materials into the primary coolant system during plant operation, all failed fuel rods that contain through-wall defects need to be identified and removed during refueling so they are not reinserted into service, as well as to support causal analyses. There is a need for improved and efficient inspection methods that can detect failed fuel rods in fuel assemblies identified as leaking by sipping techniques. This project is a part of an ongoing effort by the ...

2012-10-15T23:59:59.000Z

433

Numerical Modeling Study and Assessment of PWR Fuel Rod and Assembly Distortion  

Science Conference Proceedings (OSTI)

Fuel assembly and rod distortion experienced in pressurized water reactors (PWRs) result in numerous operational challenges to plant operators such as mechanical interference between distorted assembly and control rods, difficulties in unloading and reloading cores during outages, and possibly anomalous fuel performance due to atypical water gaps. Therefore, an improved understanding of the various parameters contributing to distortion is important in order to manage or otherwise eliminate these ...

2012-11-30T23:59:59.000Z

434

Methods and apparatus for injection casting metallic nuclear energy fuel rods  

DOE Patents (OSTI)

Molds for making metallic nuclear fuel rods are provided which present reduced risks to the environment by reducing radioactive waste. In one embodiment, the mold is consumable with the fuel rod, and in another embodiment, part of the mold can be re-used. Several molds can be arranged together in a cascaded manner, if desired, or several long cavities can be integrated in a monolithic multiple cavity re-usable mold. 6 figs.

Seidel, B.R.; Tracy, D.B.; Griffiths, V.

1989-04-06T23:59:59.000Z

435

End-of-Life Rod Internal Pressures in Spent Pressurized Water Reactor Fuel  

Science Conference Proceedings (OSTI)

The end-of-reactor-life (EOL) rod internal pressure (RIP) is the primary protagonist for several evolutionary changes during long-term dry storage, which affect cladding resistance to failure when spent fuel assemblies are subjected to normal and accident conditions of transport. At the maximum temperature attained, either during vacuum drying or dry storage, EOL RIP determines the maximum stress state in the fuel rod cladding, which in turn sets the initial conditions for potential time-dependent ...

2013-12-17T23:59:59.000Z

436

Evaluation of Fuel Rod Leakage Mechanisms -- Summary Report: Joint EPRI/ESEERCO/Westinghouse Studies  

Science Conference Proceedings (OSTI)

To achieve a zero fuel defect goal, utilities have identified failed fuel rods and determined failure causes using a combination of poolside ultrasonic testing and visual inspection. Hot cell examinations, described in this report, have helped resolve the status of leaking rods for which there appeared to be no apparent cause of failure. Utilities can incorporate the findings of this project into their poolside fuel inspection planning and fuel quality requirements.

1995-01-07T23:59:59.000Z

437

Oil backstreaming in turbomolecular and oil diffusion pumps  

Science Conference Proceedings (OSTI)

State of the art turbomolecular pumps have oil vapor backstreaming rates too low to measure by classical methods (AVS method

Louis Maurice; Pierre Duval; Guy Gorinas

1979-01-01T23:59:59.000Z

438

Super Energy Saver Heat Pump - Oak Ridge National Laboratory  

pump, enables load shifting, and saves electricity Fulfills many attributes recommended for residential and commercial heating and cooling

439

NREL Evaluates Performance of Heat Pump Water Heaters (Fact Sheet)  

SciTech Connect

NREL evaluates energy savings potential of heat pump water heaters in homes throughout all U.S. climate zones.

Not Available

2012-02-01T23:59:59.000Z

440

Biofuel alternatives to ethanol: pumping the microbial well  

E-Print Network (OSTI)

Biofuel alternatives to ethanol: pumping the microbialtechnologies that enable biofuel production. Decades of workstrategy for producing biofuel. Although ethanol currently

Fortman, J.L.

2011-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "rod pumps view" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


441

Groundwater Heat Pump with Pumping and Recharging in the Same Well in China  

E-Print Network (OSTI)

In China, a new-style groundwater heat pump emerged in 2000. In this system, the production well and the injection well is integrated into one well, which is divided into three parts by clapboards: a low pressure (production) space, a seals section, and a high pressure (injection) space. In contrast to a conventional groundwater heat pump, this new-style groundwater heat pump is named the Groundwater Heat Pump with Pumping and Recharging in the Same Well (GWHPPRSW). Up to now, over 180 projects have been established with a total construction area exceeding 2,500,000 m2. The well structure of GWHPPRSW is depicted. The advantages and disadvantages of the GWHPPRSW are analyzed. The differences between the Pumping & Recharging Well (PRW) and Standing Column Well (SCW) are compared in detail. Potential problems and applicability ranges are pointed out. The investigation on operational status of 11 different types of buildings equipped GWHPPRSW carried out by Beijing Municipal Bureau of Statistics shows that the mean operation cost per heating area of GWHPPRSW is lower than that of municipal central heating. GWHPPRSW has low initial investment, operates economically and is friendly to the environment. It is especially well suited to places with appropriate hydrogeological conditions and those with groundwater permission from the local government.

Ni, L.; Jiang, Y.; Yao, Y.; Ma, Z.

2006-01-01T23:59:59.000Z

442

Chisolm View | Open Energy Information  

Open Energy Info (EERE)

Chisolm View Chisolm View Jump to: navigation, search Name Chisolm View Facility Chisolm View Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Owner GE Energy Financial Service / Enel Green Power North America Developer TradeWind Energy Energy Purchaser Alabama Power Company Location Hunter OK Coordinates 36.59527057°, -97.54501104° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":36.59527057,"lon":-97.54501104,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

443

Evolving Views of Pectin Biosynthesis  

NLE Websites -- All DOE Office Websites (Extended Search)

BIOSYNTHESIS DURING PRIMARY AND SECONDARY WALL FORMATION Multiple lines of evidence have led to a new view of primary wall architecture and the role of pectin therein. Dick-P...

444

Risk View Software Functional Specification  

Science Conference Proceedings (OSTI)

This report defines the functional requirements for a new Risk View software product to be developed as part of the Electric Power Research Institute's (EPRI's) Operations and Maintenance Excellence (OMX) initiative. plant information sources.

2010-09-30T23:59:59.000Z

445

Best Practices for Energy Efficient Cleanrooms: Variable Speed Pumping  

E-Print Network (OSTI)

efficiency of chilled water and condenser pumps, along with chiller efficiency and cooling tower efficiency for cleanrooms and their adjacent spaces. Chillers 39% Cooling Towers 7% Pumps 17% MUAH + RCU Fans 9% Hot Water facility #12;Chiller Power (kW) 62% Chilled Water Pumps Power (kW) 13% Cooling Tower Power (kW) 20

446

Mixer pump test plan for double shell tank AZ-101  

Science Conference Proceedings (OSTI)

Mixer pump systems have been chosen as the method for retrieval of tank wastes contained in double shell tanks at Hanford. This document describes the plan for testing and demonstrating the ability of two 300 hp mixer pumps to mobilize waste in tank AZ-101. The mixer pumps, equipment and instrumentation to monitor the test were installed by Project W-151.

STAEHR, T.W.

1999-05-12T23:59:59.000Z

447

Blackbody radiation-pumped CO/sub 2/ laser experiment  

Science Conference Proceedings (OSTI)

Thermal radiation from a high temperature oven was used as an optical pump to achieve lasing from CO/sub 2/ mixtures. Laser output as a function of blackbody temperature and gas conditions is described. This achievement represents the first blackbody cavity pumped laser and has potential for solar pumping.

Christiansen, W.H.; Insuik, R.J.; Deyoung, R.J.

1982-09-01T23:59:59.000Z

448

Air source heat pump system for drying application  

Science Conference Proceedings (OSTI)

This paper investigates the performance of an air source heat pump for drying purpose. In order to evaluate the performance analysis; a simulation study has been done. The results of simulation of heat pump dryer for different evaporator temperatures ... Keywords: air source heat pump, coefficient of performance (COP), condenser temperature and compressor work, dryer, evaporator temperature

R. Daghigh; M. H. Ruslan; A. Zaharim; K. Sopian

2010-10-01T23:59:59.000Z

449

Use advisability of heat pumps for building heating and cooling  

Science Conference Proceedings (OSTI)

In the actual economic and energetic juncture, the reduction of thermal energy consumption in buildings became a major, necessary and opportune problem, general significance. The heat pumps are alternative heating installations more energy efficiency ... Keywords: "Geoterm" system, building heating/cooling, energy and economic analysis, heat pump performances, heat pumps, renewable energy sources

Ioan Srbu; C?lin Sebarchievici

2010-02-01T23:59:59.000Z

450

Recent Developments in Magnetically Coupled Vane Pumps for Tritium Service  

SciTech Connect

Despite advances in shaft sealing, a totally reliable shaft seal for two-stage vane pumps has never been developed. Therefore, the magnetically coupled vane pump drive was developed to solve the critical problem of tritium leakage at the shaft seals of vane pumps. As a result, radioactive contamination of the work area and loss of valuable material can now be prevented.

Capuder, F. C.; Quigley, L. T.; Baker, C. K.

1985-04-01T23:59:59.000Z

451

Experimental Research of Air Source Heat Pump Frosting and Defrosting in a Double Stage-Coupling Heat Pump  

E-Print Network (OSTI)

In a double stage-coupling heat pump, comprising an air source and water loop heat pump, the 13~20 ? low temperature water is supplied to the water loop heat pump unit. The water loop heat pump can extract heat from the water and heat the indoor air. The most common method of air source heat pump frost removal is reverse-cycle defrost. During the defrosting operation, the heat pump runs in the cooling mode. The defrost process is accomplished by reversing the normal heating mode. In this paper, the effect of the heat storage tank to the air source heat pump defrosting is test. Owing to the existence of the heat storage tank, thermal inertia of the loop is relatively high. The frosting and defrosting course of the air source heat pump have little effect on the room temperature.

Wang, Z.; Gu, J.; Lu, Z.

2006-01-01T23:59:59.000Z

452

September 2013 Most Viewed Documents for Fossil Fuels | OSTI, US Dept of  

Office of Scientific and Technical Information (OSTI)

Fossil Fuels Fossil Fuels EXPERIMENTAL AND THEORETICAL DETERMINATION OF HEAVY OIL VISCOSITY UNDER RESERVOIR CONDITIONS Dr. Jorge Gabitto; Maria Barrufet (2003) 42 Molecular catalytic hydrogenation of aromatic hydrocarbons and hydrotreating of coal liquids. Yang, Shiyong; Stock, L.M. (1996) 36 Fluid Dynamics in Sucker Rod Pumps Cutler, R.P.; Mansure, A.J. (1999) 35 Controlled low strength materials (CLSM), reported by ACI Committee 229 Rajendran, N. (1997) 35 Fundamental Research on Percussion Drilling: Improved rock mechanics analysis, advanced simulation technology, and full-scale laboratory investigations Michael S. Bruno (2005) 35 Autothermal Reforming of Natural Gas to Synthesis Gas Steven F. Rice; David P. Mann (2007) 34 Evaluation of Wax Deposition and Its Control During Production of

453

Plasma channel optical pumping device and method  

SciTech Connect

A device and method for optically pumping a gaseous laser using blackbody radiation produced by a plasma channel which is formed from an electrical discharge between two electrodes spaced at opposite longitudinal ends of the laser. A preionization device which can comprise a laser or electron beam accelerator produces a preionization beam which is sufficient to cause an electrical discharge between the electrodes to initiate the plasma channel along the preionization path. The optical pumping energy is supplied by a high voltage power supply rather than by the preionization beam. High output optical intensities are produced by the laser due to the high temperature blackbody radiation produced by the plasma channel, in the same manner as an exploding wire type laser. However, unlike the exploding wire type laser, the disclosed invention can be operated in a repetitive manner by utilizing a repetitive pulsed preionization device.

Judd, O' Dean P. (Los Alamos, NM)

1983-06-28T23:59:59.000Z

454

List of Geothermal Heat Pumps Incentives | Open Energy Information  

Open Energy Info (EERE)

Heat Pumps Incentives Heat Pumps Incentives Jump to: navigation, search The following contains the list of 729 Geothermal Heat Pumps Incentives. CSV (rows 1-500) CSV (rows 501-729) Incentive Incentive Type Place Applicable Sector Eligible Technologies Active AEP Appalachian Power - Commercial and Industrial Rebate Programs (West Virginia) Utility Rebate Program West Virginia Commercial Industrial Central Air conditioners Chillers Custom/Others pending approval Heat pumps Lighting Lighting Controls/Sensors Motor VFDs Programmable Thermostats Commercial Refrigeration Equipment Ground Source Heat Pumps Yes AEP SWEPCO - Commercial and Industrial Energy Efficiency Rebate Programs (Arkansas) Utility Rebate Program Arkansas Commercial Fed. Government Industrial Institutional Local Government

455

Alabama Power - Residential Heat Pump and Weatherization Loan Programs |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Alabama Power - Residential Heat Pump and Weatherization Loan Alabama Power - Residential Heat Pump and Weatherization Loan Programs Alabama Power - Residential Heat Pump and Weatherization Loan Programs < Back Eligibility Residential Savings Category Home Weatherization Commercial Weatherization Sealing Your Home Design & Remodeling Windows, Doors, & Skylights Ventilation Heating & Cooling Commercial Heating & Cooling Heat Pumps Appliances & Electronics Water Heating Maximum Rebate Windows: $350 Program Info State Alabama Program Type Utility Loan Program Rebate Amount Not specified Provider Alabama Power Alabama Power offers low-interest loans to residential customers to purchase and install new heat pumps and a variety of weatherization measures. The loans require no money down and can be used to finance an air

456

Bubble Pump Design for Single Pressure Absorption Refrigeration Cycles  

E-Print Network (OSTI)

A model has been developed for the design and optimization of a small bubble pump to be used in a single pressure absorption refrigeration cycle to lift the working fluid mixture against gravity and overcome flow friction. This analytical model is developed from two-phase flow fundamentals and incorporates the design parameters of the bubble pump. Parametric studies are carried out and a design optimization for maximum efficiency is performed for various operating conditions. Optimum efficiency is defined as the liquid pumped per unit of bubble pump heat input. The results show the optimum bubble pump tube diameter over a range of operating conditions.

Sam V. Shelton; Susan White Stewart

2002-01-01T23:59:59.000Z

457

Field Monitoring Protocol: Heat Pump Water Heaters  

SciTech Connect

This document provides a standard field monitoring protocol for evaluating the installed performance of Heat Pump Water Heaters in residential buildings. The report is organized to be consistent with the chronology of field test planning and execution. Research questions are identified first, followed by a discussion of analysis methods, and then the details of measuring the required information are laid out. A field validation of the protocol at a house near the NREL campus is included for reference.

Sparn, B.; Earle, L.; Christensen, D.; Maguire, J.; Wilson, E.; Hancock, E.

2013-02-01T23:59:59.000Z

458

Bases for pump pit requirements calculations  

DOE Green Energy (OSTI)

A task team is preparing the Process Requirements for the interarea transfer pump pits at the Defense Waste Process Facility (DWPF). The team is developing requirements to prevent flammable mixtures from forming and requires values to use on the generation of various components such as benzene, hydrogen, and N20. The purpose of this memorandum is to document values to be used and to provide sample calculations using these values. There are no recommendations contained in this document.

Jacobs, R.A.

1992-02-13T23:59:59.000Z

459

Study of Hybrid Geothermal Heat Pump Systems  

Science Conference Proceedings (OSTI)

Hybrid Ground Source Heat Pump systems often combine a traditional geothermal system with either a cooling tower or fluid cooler for heat rejection and a boiler or solar heat collector for heat addition to the loop. These systems offer the same energy efficiency benefits as full geothermal systems to utilities and their customers but at a potentially lower first cost. Many hybrid systems have materialized to resolve heat buildup in full geothermal system loops where loop temperatures continue to rise as ...

2010-12-06T23:59:59.000Z

460

Indoor unit for electric heat pump  

DOE Patents (OSTI)

An indoor unit for an electric heat pump is provided in modular form including a refrigeration module, an air mover module, and a resistance heat package module, the refrigeration module including all of the indoor refrigerant circuit components including the compressor in a space adjacent the heat exchanger, the modules being adapted to be connected to air flow communication in several different ways as shown to accommodate placement of the unit in various orientations. 9 figs.

Draper, R.; Lackey, R.S.; Fagan, T.J. Jr.; Veyo, S.E.; Humphrey, J.R.

1984-05-22T23:59:59.000Z

Note: This page contains sample records for the topic "rod pumps view" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


461

Geothermal hot water pump. Final report  

DOE Green Energy (OSTI)

The design, testing and performance capabilities of a Geothermal Hot Water Pumping System being developed are described. The pumping system is intended to operate submerged in geothermal brine wells for extended periods of time. Such a system confines the hot brine in a closed-loop under pressure to prevent the liquid from flashing into steam, in addition to providing a means for reinjecting cooled water and the contaminants into a return well. The system consists of a single-stage centrifugal pump driven by an oil-cooled, high-speed electric motor with integral heat exchanger. For testing purposes a diesel engine driven 400 Hz generator is used for supplying power to the motor. In some areas where commercial power may not be available, the diesel-generator unit or either a rotating or solid state frequency converter may be used to produce the high frequency power required by the motor. Fabrication of a prototype system and testing of the electric motor at frequencies up to 250 Hz was completed. While testing at 275 Hz it was necessary to terminate the testing when the motor stator was damaged as a result of a mechanical failure involving the motor-dynamometer drive adaptor. Test results, although limited, confirm the design and indicate that the performance is as good, or better than predicted. These results also indicate that the motor is capable of achieving rated performance.

Not Available

1977-09-30T23:59:59.000Z

462

Applications for reactor-pumped lasers  

Science Conference Proceedings (OSTI)

Nuclear reactor-pumped lasers (RPLs) have been developed in the US by the Department of Energy for over two decades, with the primary research occurring at Sandia National Laboratories and Idaho National Engineering Laboratory. The US program has experimentally demonstrated reactor-pumped lasing in various mixtures of xenon, argon, neon, and helium at wavelengths of 585, 703, 725, 1,271, 1,733, 1,792, 2,032, 2,630, 2,650, and 3,370 nm with intrinsic efficiency as high as 2.5%. The major strengths of a reactor-pumped laser are continuous high-power operation, modular construction, self-contained power, compact size, and a variety of wavelengths (from visible to infrared). These characteristics suggest numerous applications not easily accessible to other laser types. The continuous high power of an RPL opens many potential manufacturing applications such as deep-penetration welding and cutting of thick structures, wide-area hardening of metal surfaces by heat treatment or cladding application, wide-area vapor deposition of ceramics onto metal surfaces, production of sub-micron sized particles for manufacturing of ceramics, and 3-D ceramic lithography. In addition, a ground-based RPL could beam its power to space for such activities as illuminating geosynchronous communication satellites in the earth`s shadow to extend their lives, beaming power to orbital transfer vehicles, removing space debris, and providing power (from earth) to a lunar base during the long lunar night.

Lipinski, R.J.; McArthur, D.A. [Sandia National Labs., Albuquerque, NM (United States). Nuclear Systems Research

1994-10-01T23:59:59.000Z

463

Geothermal hot water pump. Final report  

SciTech Connect

The design, testing and performance capabilities of a Geothermal Hot Water Pumping System are described. The pumping system is intended to operate submerged in geothermal brine wells for extended periods of time. Such a system confines the hot brine in a closed-loop under pressure to prevent the liquid from flashing into steam, in addition to providing a means for reinjecting cooled water and the contaminates into a return well. The system consists of a single-stage centrifugal pump driven by an oil-cooled, high-speed electric motor with integral heat exchanger. For testing purposes a diesel engine driven 400 Hz generator is used for supplying power to the motor. In some areas where commercial power may not be available, the diesel-generator unit or either a rotating or solid state frequency converter may be used to produce the high frequency power required by the motor. Fabrication of a prototype system and testing of the electric motor at frequencies up to 250 Hz was completed. While testing at 275 Hz it was necessary to terminate the testing when the motor stator was damaged as a result of a mechanical failure involving the motor-dynamometer drive adaptor.

1977-09-30T23:59:59.000Z

464

Hydraulic pump with in-ground filtration and monitoring capability  

DOE Patents (OSTI)

A hydraulically operated pump is described for in-ground filtering and monitoring of wells or other fluid sources, including a hollow cylindrical pump housing with an inlet and an outlet, filtering devices positioned in the inlet and the outlet, a piston that fits slidably within the pump housing, and an optical cell in fluid communication with the pump housing. A conduit within the piston allows fluid communication between the exterior and one end of the piston. A pair of O-rings form a seal between the inside of the pump housing and the exterior of the piston. A flow valve positioned within the piston inside the conduit allows fluid to flow in a single direction. In operation, fluid enters the pump housing through the inlet, flows through the conduit and towards an end of the pump housing. The piston then makes a downward stroke closing the valve, thus forcing the fluid out from the pump housing into the optical cell, which then takes spectrophotometric measurements of the fluid. A spring helps return the piston back to its starting position, so that a new supply of fluid may enter the pump housing and the downward stroke can begin again. The pump may be used independently of the optical cell, as a sample pump to transport a sample fluid from a source to a container for later analysis.

Hopkins, C.D.; Livingston, R.R.; Toole, W.R. Jr.

1995-01-01T23:59:59.000Z

465

New and Underutilized Technology: Commercial Ground Source Heat Pumps |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Commercial Ground Source Heat Commercial Ground Source Heat Pumps New and Underutilized Technology: Commercial Ground Source Heat Pumps October 8, 2013 - 2:59pm Addthis The following information outlines key deployment considerations for commercial ground source heat pumps within the Federal sector. Benefits Commercial ground source heat pumps are ground source heat pump with loops that feed multiple packaged heat pumps and a single ground source water loop. Unit capacity is typically 1-10 tons and may be utilized in an array of multiple units to serve a large load. Application Condensing boilers are appropriate for housing, service, office, and research and development applications. Key Factors for Deployment FEMP has made great progress with commercial ground source heat pump technology deployment within the Federal sector. Primary barriers deal with

466

Building Technologies Office: Air-Source Integrated Heat Pump Research  

NLE Websites -- All DOE Office Websites (Extended Search)

Air-Source Integrated Air-Source Integrated Heat Pump Research Project to someone by E-mail Share Building Technologies Office: Air-Source Integrated Heat Pump Research Project on Facebook Tweet about Building Technologies Office: Air-Source Integrated Heat Pump Research Project on Twitter Bookmark Building Technologies Office: Air-Source Integrated Heat Pump Research Project on Google Bookmark Building Technologies Office: Air-Source Integrated Heat Pump Research Project on Delicious Rank Building Technologies Office: Air-Source Integrated Heat Pump Research Project on Digg Find More places to share Building Technologies Office: Air-Source Integrated Heat Pump Research Project on AddThis.com... About Take Action to Save Energy Partner with DOE Activities Appliances Research Building Envelope Research

467

Heat Pump Swimming Pool Heaters | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Swimming Pool Heaters Swimming Pool Heaters Heat Pump Swimming Pool Heaters May 29, 2012 - 1:49pm Addthis How a heat pump works. How a heat pump works. How They Work Heat pumps use electricity to capture heat and move it from one place to another. They don't generate heat. As the pool pump circulates the swimming pool's water, the water drawn from the pool passes through a filter and the heat pump heater. The heat pump heater has a fan that draws in the outside air and directs it over the evaporator coil. Liquid refrigerant within the evaporator coil absorbs the heat from the outside air and becomes a gas. The warm gas in the coil then passes through the compressor. The compressor increases the heat, creating a very hot gas that then passes through the condenser. The condenser transfers the heat from the hot gas to the cooler pool water circulating

468

Air-Source Heat Pump Basics | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Air-Source Heat Pump Basics Air-Source Heat Pump Basics Air-Source Heat Pump Basics August 19, 2013 - 11:03am Addthis Air-source heat pumps transfer heat between the inside of a building and the outside air. How Air-Source Heat Pumps Work This diagram of a split-system heat pump heating cycle shows refrigerant circulating through a closed loop that passes through the wall of a house. Inside the house the refrigerant winds through indoor coils, with a fan blowing across them, and outside the house is another fan and another set of coils, the outdoor coils. A compressor is between the coils on one half of the loop, and an expansion valve is between the coils on the other half. The diagram is explained in the caption. In heating mode, an air-source heat pump evaporates a refrigerant in the outdoor coil; as the liquid evaporates it pulls

469

EnergyUnited - Residential Energy Efficient Heat Pump Rebate Program |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

EnergyUnited - Residential Energy Efficient Heat Pump Rebate EnergyUnited - Residential Energy Efficient Heat Pump Rebate Program EnergyUnited - Residential Energy Efficient Heat Pump Rebate Program < Back Eligibility Residential Savings Category Heating & Cooling Commercial Heating & Cooling Heat Pumps Maximum Rebate 2 per dwelling Program Info State North Carolina Program Type Utility Rebate Program Rebate Amount Heat Pumps (14 SEER): $150 Heat Pumps (15 SEER +): $300 Provider EnergyUnited EnergyUnited offers rebates to residential customers who upgrade to high efficiency heat pumps. Rebates range from $150 - $300, varying by efficiency. The rebate form can be found on the program website and must be completed by the installing HVAC contractor. Each unit will require a separate form in order to qualify for rebates. Systems must be

470

Energy 101: Geothermal Heat Pumps | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Geothermal Heat Pumps Geothermal Heat Pumps Energy 101: Geothermal Heat Pumps Addthis Below is the text version for the Energy 101: Geothermal heat pumps video. The video opens with "Energy 101: Geothermal Heat Pumps." This is followed by an illustration of a house panning to a man standing beside it. We all want to save money heating and cooling our house or office. Right? The answer may be under your feet. Literally. The ground under the man's feet is shown in cross-section. A geothermal heat pump appears in this cross-sectional illustration of the ground. Much of the heating and cooling can come from the ground - below the surface with something called... a geothermal heat pump. The video shows the Earth rotating, then revealed in cross-section. The video then returns to the house with the cross-section of the ground with a

471

Advanced Chemical Heat Pumps Using Liquid-Vapor Reactions  

E-Print Network (OSTI)

Chemical heat pumps utilizing liquid-vapor reactions can be configured in forms analogous to electric drive vapor-compression heat pumps and heat activated absorption heat pumps. Basic thermodynamic considerations eliminate some heat pumps and place restrictive working fluid requirements on others, but two thermodynamically feasible systems have significant potential advantage over conventional technology. An electric drive reactive heat pump can use smaller heat exchangers and compressor than a vapor-compression machine, and have more flexible operating characteristics. A waste heat driven heat pump (temperature amplifier) using liquid-vapor chemical reactions- can operate with higher coefficient of performance and smaller heat exchangers than an absorption temperature amplifying heat pump. Higher temperatures and larger temperature lifts should also be possible.

Kirol, L.

1987-09-01T23:59:59.000Z

472

Air-Source Heat Pump Basics | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Source Heat Pump Basics Source Heat Pump Basics Air-Source Heat Pump Basics August 19, 2013 - 11:03am Addthis Air-source heat pumps transfer heat between the inside of a building and the outside air. How Air-Source Heat Pumps Work This diagram of a split-system heat pump heating cycle shows refrigerant circulating through a closed loop that passes through the wall of a house. Inside the house the refrigerant winds through indoor coils, with a fan blowing across them, and outside the house is another fan and another set of coils, the outdoor coils. A compressor is between the coils on one half of the loop, and an expansion valve is between the coils on the other half. The diagram is explained in the caption. In heating mode, an air-source heat pump evaporates a refrigerant in the outdoor coil; as the liquid evaporates it pulls

473

Alternative Fuels Data Center: Status Update: Ethanol Blender Pump  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Ethanol Ethanol Blender Pump Dispenser Certified (August 2010) to someone by E-mail Share Alternative Fuels Data Center: Status Update: Ethanol Blender Pump Dispenser Certified (August 2010) on Facebook Tweet about Alternative Fuels Data Center: Status Update: Ethanol Blender Pump Dispenser Certified (August 2010) on Twitter Bookmark Alternative Fuels Data Center: Status Update: Ethanol Blender Pump Dispenser Certified (August 2010) on Google Bookmark Alternative Fuels Data Center: Status Update: Ethanol Blender Pump Dispenser Certified (August 2010) on Delicious Rank Alternative Fuels Data Center: Status Update: Ethanol Blender Pump Dispenser Certified (August 2010) on Digg Find More places to share Alternative Fuels Data Center: Status Update: Ethanol Blender Pump Dispenser Certified (August 2010) on

474

Characterization of Pump Flow at the Grand Coulee Pumping Station for Fish Passage, 2004  

DOE Green Energy (OSTI)

This report describes a study conducted by PNNL for the Bonneville Power Administration to characterized the conditions fish experience when entrained in pump flow at the Grand Coulee Dam. PNNL used the Sensor Fish to measure the acceleration and pressure conditions that might be experienced by fish who are pulled through the pumps and turbines at Grand Coulee Dam's pump generation station and transported up into the feeder canal leading to Banks Lake. The probability that fish would be struck by the pump generating plant's new 9-bladed turbines was also calculated using Monte Carlo simulations. Our measurements showed relatively low turbulence except in the immediate vicinity of the runner environment. The highest pressure experienced by the Sensor Fish was estimated at 157 psi (the pressure gauge saturated at 155 psi). The probability of strike was also calculated, based on the average length of hatchery-reared juvenile kokanee (land-locked sockeye). Strike probabilities ranged from 0.755 for 2.36-inch fish to 0.3890 for 11.8-inch fish. The probability of strike estimates indicate that the majority (77%) of kokanne would be carried through the pump without being struck and most likely without injury resulting from pressure and turbulence exposure. Of the 23% that might be struck it is expected that 60% would arrive in Banks Lake without visible external injuries. Thus more than 90% of entrained fish would be expected to arrive in Banks Lake without injury.

Carlson, Thomas J.; Duncan, Joanne P.; Johnson, Robert L.

2005-03-31T23:59:59.000Z

475

List View | Data.gov  

NLE Websites -- All DOE Office Websites (Extended Search)

List View List View Safety Data/Tools Apps Challenges Resources Blogs Let's Talk Safety You are here Data.gov » Communities » Safety List View Interactive applications that visually display large datasets provide a portal to explore data and make discoveries. Federal agencies collect information on energy production, use, natural resources, and energy infrastructure logistics and this data can be used to create calculators, interactive maps, and other applications that leverage this data. These applications provide user communities the ability to highlight the energy issues that are occurring within their communities, aid businesses plan and analyze their proposed projects, and provide a baseline for analyzing how energy resources can be most optimally and efficiently used. This page

476

Lighting for remote viewing systems  

SciTech Connect

Scenes viewed by television do not provide the same channels of information for judgment of distances as scenes viewed directly, since television eliminates or degrades several depth perception cues. However, it may be possible to improve depth perception of televised scenes by enhancing the information available through depth cues that are available from lighting. A literature survey and expert opinions were integrated to design a remote lighting arrangement which could enhance depth perception of operators performing remote handling operations. This paper describes the lighting arrangement and discusses some of its advantages and disadvantages. 10 references, 2 figures.

Draper, J.V.

1984-01-01T23:59:59.000Z

477

Lighting for remote viewing systems  

SciTech Connect

Scenes viewed by television do not provide the same channels of information for judgement of distances as scenes viewed directly, since television eliminates or degrades several depth perception cues. However, it may be possible to improve depth perception of televised scenes by enhancing the information available through depth cues that are available from lighting. A literature survey and expert opinions were integrated to design a remote lighting arrangement which could enhance depth perception of operators performing remote handling operations. This paper describes the lighting arrangement and discusses some of its advantages and disadvantages. 10 references, 2 figures.

Draper, J.V.

1984-01-01T23:59:59.000Z

478

Development and control of the process for the manufacture of zircaloy-4 tubing for LWBR fuel rods  

Science Conference Proceedings (OSTI)

The technical requirements for the Light Water Breeder Reactor (LWBR) fuel elements (fuel rods) imposed certain unique requirements for the low hafnium Zircaloy-4 tubing used as fuel rod cladding. This report describes, in detail, the tube manufacturing process, the product and process controls used, the inspections and tests performed, and the efforts involved in refining a commercial tube reducing process to produce tubes that would satisfy the requirements for LWBR fuel rod cladding.

Eyler, J.H.

1981-01-01T23:59:59.000Z

479

Assessment of Experimental Data to Support Computational Fluid Dynamics Analysis of PWR Rod Bundle Heat Transfer Studies  

Science Conference Proceedings (OSTI)

Crud-induced cladding corrosion (CILC) is a localized phenomenon, which is directly related to subcooled nucleate boiling (SNB) in rod bundles of pressurized water reactors (PWRs). Local boiling on fuel rod surfaces leads to preferential deposition of corrosion products circulating in the reactor coolant. Typical thermal hydraulic codes/methods used in core design do not have sufficient resolution to predict susceptible "hot spots" on fuel rod surfaces when SNB is elevated. Hence, detailed local computat...

2010-08-30T23:59:59.000Z

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E-Print Network (OSTI)

NSAs have to guarantee that no private information from ...... tive to complementary cell suppression, manuscript, Energy Information Admin- istration

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E-Print Network (OSTI)

and algorithms in this area, as well as several application areas where ...... solver reached assignment for proof timeout) found of SAT. Gap. 269. 51. 2. 20. 664.

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E-Print Network (OSTI)

1.2 Notation and organization of the paper ... This paper is organized as follows. ..... i is the i-th eigenvalue of C. Then, letting R := QT RQ and H := QT HQ, we.

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Science Conference Proceedings (OSTI)

Aug 6, 2010 ... (doi:10.1007/s00134-010-1979-1) contains supplementary material, which is .... The visual inspection of the distribution of the EQ-5D scores...

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Science Conference Proceedings (OSTI)

Feb 16, 1998 ... temperatures and quenched by injecting helium gas. All processes ..... retrofitted with mushroom shaped TiB2-G cathode elements and op- erated for ..... same time improving the formability of alloys and reducing the natural aging rate. .... of many magnesium die castings in production vehicles. In order for...

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E-Print Network (OSTI)

Oct 30, 2002 ... Turing machine model, our analysis yields an O(n. 3.5 .... analysis of Vavasis and Ye's algorithm is based on the notion of crossover event,.

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E-Print Network (OSTI)

May 12, 2005 ... Our algorithm is a result of the combination of stochastic ap- proximation ideas ... 2EDF R&D ... 3EDF R&D ..... Let us state the main result of this section: ..... IEEE Transactions on Systems, Science and Cybernetics, 5:307. 14.

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E-Print Network (OSTI)

1France Tlcom R&D, 38-40 rue du gl Leclerc, 92130 Issy-les-Moulineaux, France ... The results obtained outperform many methods based on earlier literature. ...... Linear programming under uncertainty, Management Science, 1 (

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E-Print Network (OSTI)

Sep 22, 2006 ... minimizing the cost of the thermal power production if the hydro-power plant cannot supply the demand completely. Dynamic programming is a...

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Science Conference Proceedings (OSTI)

Jul 13, 2012 ... Current emphasis: visualization, data mining and applications in oil and ..... Internships. Agreement Enhancements. Discount on indirect costs.

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E-Print Network (OSTI)

Jan 27, 2011 ... Cost Horizons and Certainty Equivalents: An Approach to Stochastic Programming of Heating Oil. Management Science, 4(3):253. 263, 1958.

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E-Print Network (OSTI)

Optimization Technical Report. ISyE Department, University of Wisconsin- Madison. Oktay Gnlk1 Jeff Linderoth2. Perspective Reformulations of Mixed Integer.

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Science Conference Proceedings (OSTI)

Red Herring Dec 2001. Nanotechnology is the understanding and control of matter at dimensions of roughly 1 to. 100 nanometers, where unique phenomena .

493

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E-Print Network (OSTI)

We tested these formu- ... and finding radiation treatment plans in the presence of organ motion. ...... We report the number instances for which the heuristic.

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E-Print Network (OSTI)

Jul 18, 2008 ... Let us define the energy product and corresponding energy norm with respect to an ...... 3.2 Shape optimization in 3D for EIT and DC resistivity.

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E-Print Network (OSTI)

2003. The Solver Manuals. GAMS Development Corporation, Washington, DC, USA. Gilbert, J. 2007a. Organization of the Modulopt collection of optimization...

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E-Print Network (OSTI)

erwin@gams.com. GAMS Development Corp. Washington DC. 19th June 2001. Abstract. The `Progressive Party Problem' [9] has long been considered a prob-.

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E-Print Network (OSTI)

Oct 6, 2004... and Systems Engineering, Georgia Institute of Technology, Atlanta, .... The methods described in this paper reduce the energy function (1) at...

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E-Print Network (OSTI)

digital communication networks. .... bound. IEEE Transactions on Communications, 52:632642, 2004. ... uscript, Georgia Institute of Technology, 2007.

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E-Print Network (OSTI)

It models optimal placement of communications relay nodes in the pres- ence of obstacles. This problem ...... tion Technology (CENIIT). The authors would like to

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E-Print Network (OSTI)

AbstractWe consider the classical problem of estimating ... (a) to provide an estimate fn of f such that the first 2n+1 .... course at a higher computational cost.