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Note: This page contains sample records for the topic "rotary mechanical power" from the National Library of EnergyBeta (NLEBeta).
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1

Rotary drive mechanism  

Science Conference Proceedings (OSTI)

This patent describes a rotary drive mechanism which includes a rotary solenoid having a stator and multi-poled rotor. A moving member rotates with the rotor and is biased by a biasing device. The biasing device causes a further rotational movement after rotation by the rotary solenoid. Thus, energization of the rotary solenoid moves the member in one direction to one position and biases the biasing device against the member. Subsequently, de- energization of the rotary solenoid causes the biasing device to move the member in the same direction to another position from where the moving member is again movable by energization and de-energization of the rotary solenoid. Preferably, the moving member is a multi-lobed cam having the same number of lobes as the rotor has poles. An anti- overdrive device is also preferably provided for preventing overdrive in the forward direction or a reverse rotation of the moving member and for precisely aligning the moving member.

Kenderdine, E.W.

1991-10-08T23:59:59.000Z

2

Rotary drive mechanism  

Science Conference Proceedings (OSTI)

A rotary drive mechanism includes a rotary solenoid having a stator and multi-poled rotor. A moving member rotates with the rotor and is biased by a biasing device. The biasing device causes a further rotational movement after rotation by the rotary solenoid. Thus, energization of the rotary solenoid moves the member in one direction to one position and biases the biasing device against the member. Subsequently, de-energization of the rotary solenoid causes the biasing device to move the member in the same direction to another position from where the moving member is again movable by energization and de-energization of the rotary solenoid. Preferably, the moving member is a multi-lobed cam having the same number of lobes as the rotor has poles. An anti-overdrive device is also preferably provided for preventing overdrive in the forward direction or a reverse rotation of the moving member and for precisely aligning the moving member.

Kenderdine, Eugene W. (Albuquerque, NM)

1991-01-01T23:59:59.000Z

3

Rotary mechanical latch  

Science Conference Proceedings (OSTI)

A rotary mechanical latch for positive latching and unlatching of a rotary device with a latchable rotating assembly having a latching gear that can be driven to latched and unlatched states by a drive mechanism such as an electric motor. A cam arm affixed to the latching gear interfaces with leading and trailing latch cams affixed to a flange within the drive mechanism. The interaction of the cam arm with leading and trailing latch cams prevents rotation of the rotating assembly by external forces such as those due to vibration or tampering.

Spletzer, Barry L.; Martinez, Michael A.; Marron, Lisa C.

2012-11-13T23:59:59.000Z

4

High Pressure Rotary Shaft Sealing Mechanism  

DOE Patents (OSTI)

A laterally translatable pressure staged rotary shaft sealing mechanism having a seal housing with a shaft passage therein being exposed to a fluid pressure P1 and with a rotary shaft being located within the shaft passage. At least one annular laterally translatable seal carrier is provided. First and second annular resilient sealing elements are supported in axially spaced relation by the annular seal carriers and have sealing relation with the rotary shaft. The seal housing and at least one seal carrier define a first pressure staging chamber exposed to the first annular resilient sealing element and a second pressure staging chamber located between and exposed to the first and second annular resilient sealing elements. A first fluid is circulated to the first pressure chamber at a pressure P1, and a second staging pressure fluid is circulated to the second pressure chamber at a fraction of pressure P1 to achieve pressure staging, cooling of the seals. Seal placement provides hydraulic force balancing of the annular seal carriers.

Dietle, Lannie (Sugar Land, TX); Gobeli, Jeffrey D. (Houston, TX)

2001-05-08T23:59:59.000Z

5

Power Production from Geothermal Brine with the Rotary Separator Turbine  

SciTech Connect

The rotary separator turbine is a new turbine device that operates with gas-liquid mixtures. This device achieves complete gas-liquid separation, generates power from the liquid and repressurizes the liquid. The use of the rotary separator turbine for geothermal power generation was investigated on this program. A pilot scale unit was designed and tested. Tests were conducted with a clean water/steam mixture and with geothermal brine/steam flows at East Mesa, California; Raft River, Idaho; and Roosevelt Hot Springs, Utah. The test results were used to calculate the performance advantage of a rotary separator turbine power system compared to a flash steam power system and a binary power system. The calculated performance advantages were then used to estimate market potential for wellhead and central station Biphase units. The measured performance in the laboratory and in the field agreed to within {+-} 10% of the predicted values. The design goal of 20 kWe was generated both in the laboratory and from brine. Separated steam quality was measured to be greater than 99.96% at all three geothermal resources and in the laboratory. Brine pressure leaving the test unit was greater than reinjection pressure requirements. Maximum brine outlet pressure of 90 psig was demonstrated. The measured performance values would result in a 34% increase in electric power production above a single stage flash steam system. Increasing the size from the pilot size unit (20kWe) to a wellhead unit (2000 kWe) gave a calculated performance advantage of 40%. Based on these favorable results, design, construction and testing of a full-size well-head unit was initiated.

Cerini, Donald J.; Hays, Lance G.

1980-12-01T23:59:59.000Z

6

An Advanced Solar-Powered Rotary Solid Adsorption Refrigerator with High Performance  

E-Print Network (OSTI)

In this paper, according to practical consideration, a new solar powered rotary solid adsorption refrigerator system adopting activated carbon fibre + ethanol as its adsorption pair has been designed with higher performance. Moreover, the principle of the refrigeration cycle, different components of the machine, selection of working pairs and feasible theory analysis of the refrigeration system all have been presented in detail. In addition, it shows that the new refrigerator has many great advantages including a simple structure, fast refrigeration, higher thermodynamic coefficient, friendly to the atmospheric environment, etc. This paper explains that the refrigerating process is constant, which has a promising potential for competing the 'intermittent' cycle reported before. Through improving the refrigerant performance of heat and mass transfer in the adsorbent bed, the refrigeration cycle has been advanced from the aspect of utilization of the thermal energy from low-temperature level resources. In addition, it is shown that the commercial solar powered refrigerator will be existent in the near future.

Zheng, A.; Gu, J.

2006-01-01T23:59:59.000Z

7

Performance optimization of rotary dehumidifiers  

SciTech Connect

A rotary dehumidifier consists of a rotating porous matrix made of a desiccant with mechanically supporting materials. The dehumidification performance of a rotary dehumidifier wheel depends on its rotational speed, the sorption properties of the desiccant, the heat and mass transfer characteristics of the matrix, and the size of the dehumidifier. The effect of the rotational speed on the dehumidification performance of a rotary dehumidifier has been investigated by Zheng, Worek, and Novosel (1993). this paper extends that previous work and investigates the effects of desiccant sorption properties, the heat and mass transfer characteristics, and the size of the rotary dehumidifier on the dehumidification performance. The results show that the using desiccant materials in a rotary dehumidifier with different adsorption characteristics results in a wide variation in dehumidification performance. However, the maximum performance of a rotary dehumidifier occurs for a desiccant material having an isotherm shape that can be characterized to have a separation factor of 0.07. Also, as the desiccant moisture uptake increases, the dehumidifier performance also increases. However, the performance improvement for a desiccant matrix having a maximum moisture uptake of larger than 0.25 by weight is not significant. The heat and mass transfer properties and the size of rotary dehumidifier are characterized by the number of transfer units NTU. Generally, the larger the NTU, the better dehumidification performance. However, similar to the maximum moisture uptake, when the NTU is larger than 12, the performance will not improve significantly. Also, the dehumidifier with the most favorable adsorption characteristic has a slower rotational speed, which results in lower power requirements to rotate the desiccant wheel and smaller carry-over losses.

Zheng, W.; Worek, W.M. [Univ. of Chicago, IL (United States). Dept. of Mechanical Engineering; Novosel, D. [Gas Research Inst., Chicago, IL (United States)

1995-02-01T23:59:59.000Z

8

EM Rotary Filter Program  

Electrical Junction Box Motors for Rotary Microfilters Motor Operated Valves Electrical ... savings SMPs Clarified Salt Solution Pumping System Sr-90 and actinides

9

Design of a novel rotary compact power pack for the series hybrid electric vehicle. Design and simulation of a compact power pack consisting of a novel rotary engine and outer rotor induction machine for the series hybrid electric vehicle powertrain.  

E-Print Network (OSTI)

??Hybrid electric vehicles significantly reduce exhaust emissions and increase fuel economy. Power packs are the most fundamental components in a series powertrain configuration of a (more)

Amirian, Hossein

2010-01-01T23:59:59.000Z

10

Analysis of hydraulic power transduction in regenerative rotary shock absorbers as function of working fluid kinematic viscosity  

E-Print Network (OSTI)

This investigation seeks to investigate the relationship of kinematic fluid viscosity to the effective power transduction seen by a hydraulic motor. Applications of this research specifically relate to energy recovery from ...

Avadhany, Shakeel N

2009-01-01T23:59:59.000Z

11

Loss Mechanisms and High Power Piezoelectric Components - TMS  

Science Conference Proceedings (OSTI)

Oct 15, 2006 ... Loss Mechanisms and High Power Piezoelectric Components ... we demonstrated high power multilayer piezoelectric transformers with Cu or...

12

Solar heated rotary kiln  

SciTech Connect

A solar heated rotary kiln utilized for decomposition of materials, such as zinc sulfate. The rotary kiln has an open end and is enclosed in a sealed container having a window positioned for directing solar energy into the open end of the kiln. The material to be decomposed is directed through the container into the kiln by a feed tube. The container is also provided with an outlet for exhaust gases and an outlet for spent solids, and rests on a tiltable base. The window may be cooled and kept clear of debris by coolant gases.

Shell, Pamela K. (Tracy, CA)

1984-01-01T23:59:59.000Z

13

Wind Power and the Clean Development Mechanism  

E-Print Network (OSTI)

20 40 60 80 100 120 Biomass energy Hydro Agriculture EE Industry Wind Landfill gas Fossil fuel switchWind Power and the Clean Development Mechanism Romeo Pacudan PhD Wind Energy Development, Philippines EC-ASEAN ENERGY FACILITY #12;CD4CDM project Objective · Help developing countries participate

14

Rotary shaft sealing assembly  

DOE Patents (OSTI)

A rotary shaft sealing assembly in which a first fluid is partitioned from a second fluid in a housing assembly having a rotary shaft located at least partially within. In one embodiment a lip seal is lubricated and flushed with a pressure-generating seal ring preferably having an angled diverting feature. The pressure-generating seal ring and a hydrodynamic seal may be used to define a lubricant-filled region with each of the seals having hydrodynamic inlets facing the lubricant-filled region. Another aspect of the sealing assembly is having a seal to contain pressurized lubricant while withstanding high rotary speeds. Another rotary shaft sealing assembly embodiment includes a lubricant supply providing a lubricant at an elevated pressure to a region between a lip seal and a hydrodynamic seal with a flow control regulating the flow of lubricant past the lip seal. The hydrodynamic seal may include an energizer element having a modulus of elasticity greater than the modulus of elasticity of a sealing lip of the hydrodynamic seal.

Dietle, Lannie L. (Houston, TX); Schroeder, John E. (Richmond, TX); Kalsi, Manmohan S. (Houston, TX); Alvarez, Patricio D. (Richmond, TX)

2010-09-21T23:59:59.000Z

15

Rotary shaft sealing assembly  

DOE Patents (OSTI)

A rotary shaft sealing assembly in which a first fluid is partitioned from a second fluid in a housing assembly having a rotary shaft located at least partially within. In one embodiment a lip seal is lubricated and flushed with a pressure-generating seal ring preferably having an angled diverting feature. The pressure-generating seal ring and a hydrodynamic seal may be used to define a lubricant-filled region with each of the seals having hydrodynamic inlets facing the lubricant-filled region. Another aspect of the sealing assembly is having a seal to contain pressurized lubricant while withstanding high rotary speeds. Another rotary shaft sealing assembly embodiment includes a lubricant supply providing a lubricant at an elevated pressure to a region between a lip seal and a hydrodynamic seal with a flow control regulating the flow of lubricant past the lip seal. The hydrodynamic seal may include an energizer element having a modulus of elasticity greater than the modulus of elasticity of a sealing lip of the hydrodynamic seal.

Dietle, Lannie L; Schroeder, John E; Kalsi, Manmohan S; Alvarez, Patricio D

2013-08-13T23:59:59.000Z

16

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

17

Rotary pneumatic valve  

DOE Patents (OSTI)

A rotary pneumatic valve which is thrust balanced and the pneumatic pressure developed produces only radial loads on the valve cylinder producing negligible resistance and thus minimal torque on the bearings of the valve. The valve is multiplexed such that at least two complete switching cycles occur for each revolution of the cylinder spindle. 4 figs.

Hardee, H.C.

1989-08-02T23:59:59.000Z

18

Rotary Burner Demonstration  

Science Conference Proceedings (OSTI)

The subject technology, the Calcpos Rotary Burner (CRB), is a burner that is proposed to reduce energy consumption and emission levels in comparison to currently available technology. burners are used throughout industry to produce the heat that is required during the refining process. Refineries seek to minimize the use of energy in refining while still meeting EPA regulations for emissions.

Paul Flanagan

2003-04-30T23:59:59.000Z

19

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

20

Recirculating rotary gas compressor  

DOE Patents (OSTI)

A positive displacement, recirculating Roots-type rotary gas compressor is described which operates on the basis of flow work compression. The compressor includes a pair of large diameter recirculation conduits which return compressed discharge gas to the compressor housing, where it is mixed with low pressure inlet gas, thereby minimizing adiabatic heating of the gas. The compressor includes a pair of involutely lobed impellers and an associated port configuration which together result in uninterrupted flow of recirculation gas. The large diameter recirculation conduits equalize gas flow velocities within the compressor and minimize gas flow losses. The compressor is particularly suited to applications requiring sustained operation at higher gas compression ratios than have previously been feasible with rotary pumps, and is particularly applicable to refrigeration or other applications requiring condensation of a vapor. 12 figs.

Weinbrecht, J.F.

1992-02-25T23:59:59.000Z

Note: This page contains sample records for the topic "rotary mechanical power" 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

Recirculating rotary gas compressor  

DOE Patents (OSTI)

A positive displacement, recirculating Roots-type rotary gas compressor which operates on the basis of flow work compression. The compressor includes a pair of large diameter recirculation conduits (24 and 26) which return compressed discharge gas to the compressor housing (14), where it is mixed with low pressure inlet gas, thereby minimizing adiabatic heating of the gas. The compressor includes a pair of involutely lobed impellers (10 and 12) and an associated port configuration which together result in uninterrupted flow of recirculation gas. The large diameter recirculation conduits equalize gas flow velocities within the compressor and minimize gas flow losses. The compressor is particularly suited to applications requiring sustained operation at higher gas compression ratios than have previously been feasible with rotary pumps, and is particularly applicable to refrigeration or other applications requiring condensation of a vapor.

Weinbrecht, John F. (601 Oakwood Loop, NE., Albuquerque, NM 87123)

1992-01-01T23:59:59.000Z

22

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

23

Rotary kiln seal  

SciTech Connect

A rotary seal used to prevent the escape of contaminates from a rotating kiln incinerator. The rotating seal combines a rotating disc plate which is attached to the rotating kiln shell and four sets of non-rotating carbon seal bars housed in a primary and secondary housing and which rub on the sides of the disc. A seal air system is used to create a positive pressure in a chamber between the primary and secondary seals to create a positive air flow into the contaminated gas chamber. The seal air system also employs an air inlet located between the secondary and tertiary seals to further insure that no contaminates pass the seal and enter the external environment and to provide makeup air for the air which flows into the contaminated gas chamber. The pressure exerted by the seal bars on the rotating disc is controlled by means of a preload spring. The seal is capable of operating in a thermally changing environment where the both radial expansion and axial movement of the rotating kiln do not result in the failure of the seal.

Drexler, Robert L. (Idaho Falls, ID)

1992-01-01T23:59:59.000Z

24

Rotary kiln seal  

DOE Patents (OSTI)

A rotary seal used to prevent the escape of contaminants from a rotating kiln incinerator. The rotating seal combines a rotating disc plate which is attached to the rotating kiln shell and four sets of non-rotating carbon seal bars housed in a primary and secondary housing and which rub on the sides of the disc. A seal air system is used to create a positive pressure in a chamber between the primary and secondary seals to create a positive air flow into the contaminated gas chamber. The seal air system also employs an air inlet located between the secondary and tertiary seals to further insure that no contaminants pass the seal and enter the external environment and to provide makeup air for the air which flows into the contaminated gas chamber. The pressure exerted by the seal bars on the rotating disc is controlled by means of a preload spring. The seal is capable of operating in a thermally changing environment where the both radial expansion and axial movement of the rotating kiln do not result in the failure of the seal.

Drexler, R.L.

1990-10-17T23:59:59.000Z

25

Microwave lamp with multi-purpose rotary motor  

DOE Patents (OSTI)

In a microwave powered electrodeless lamp, a single rotary motor is used to (a) rotate the bulb and (b) provide rotary motion to a blower or pump means for providing cooling fluid to the magnetron and/or to a forced gas cooler for providing cooling gas to the bulb. The blower may consist of only of an impeller without the usual blower housing. The motor, bulb stem and bulb, or motor, bulb stem, bulb and blower may be formed as an integral unit so as to facilitate replacement. 8 figs.

Ury, M.G.; Turner, B.; Wooten, R.D.

1999-02-02T23:59:59.000Z

26

Microwave lamp with multi-purpose rotary motor  

DOE Patents (OSTI)

In a microwave powered electrodeless lamp, a single rotary motor is used to a) rotate the bulb and b) provide rotary motion to a blower or pump means for providing cooling fluid to the magnetron and/or to a forced gas cooling for providing cooler gas to the bulb. The blower may consist of only of an impeller without the usual blower housing. The motor, bulb stem and bulb, or motor, bulb stem, bulb and blower may be formed as an integral unit so as to facilitate replacement.

Ury, Michael G. (Bethesda, MD); Turner, Brian (Myersville, MD); Wooten, Robert D. (Rockville, MD)

1999-01-01T23:59:59.000Z

27

Physical Clearing Mechanisms in Power Karla Atkins  

E-Print Network (OSTI)

pricing in a Deregulated Generation Indus- try: The Potential for Oligopoly Pricing in a Poolco," http://www.tellus.org/energy of energy sector and its impact on generation of electricity, market power, market efficiency, consumption on the electrical power grid affects market prices. A resistive network imposes additional constraint on the network

Marathe, Achla

28

Solar-heated rotary kiln  

DOE Patents (OSTI)

A solar heated rotary kiln utilized for decomposition of materials, such as zinc sulfate is disclosed. The rotary kiln has an open end and is enclosed in a sealed container having a window positioned for directing solar energy into the open end of the kiln. The material to be decomposed is directed through the container into the kiln by a feed tube. The container is also provided with an outlet for exhaust gases and an outlet for spent solids, and rests on a tiltable base. The window may be cooled and kept clear of debris by coolant gases.

Shell, P.K.

1982-04-14T23:59:59.000Z

29

Rotary actuator utilizing a shape memory alloy  

SciTech Connect

An apparatus is described comprising; (a) rotary accumulator means for accumulating a length of a shape memory alloy wire; (b) the shape memory alloy wire attached at one end to a point fixed with respect to the rotary accumulator means and attached at a second end to the rotary accumulator means; (c) biasing means for biasing the rotary accumulator means to a first position; and (d) means for heating the shape memory alloy wire to cause the shape memory alloy wire to contract, thereby rotating the rotary accumulator means from the first position to a second position.

Bloch, J.T.

1988-08-09T23:59:59.000Z

30

Granular Attrition due to Rotary Valve in a Pneumatic Conveying System  

E-Print Network (OSTI)

The rotary valve is a widely used mechanical device in many solids-handling industrial processes. However, it may also be responsible for most of the attrition effects occurring in a typical process. In this study, the ...

Yao, Jun

31

High bandwidth rotary fast tool servos and a hybrid rotary/linear electromagnetic actuator  

E-Print Network (OSTI)

This thesis describes the development of two high bandwidth short-stroke rotary fast tool servos and the hybrid rotary/linear electromagnetic actuator developed for one of them. Design insights, trade-off methodologies, ...

Montesanti, Richard Clement

2005-01-01T23:59:59.000Z

32

Rotary kilns - transport phenomena and transport processes  

Science Conference Proceedings (OSTI)

Rotary kilns and rotating industrial drying ovens are used for a wide variety of applications including processing raw minerals and feedstocks as well as heat-treating hazardous wastes. They are particularly critical in the manufacture of Portland cement. Their design and operation is critical to their efficient usage, which if done incorrectly can result in improperly treated materials and excessive, high fuel costs. This book treats all engineering aspects of rotary kilns, including thermal and fluid principles involved in their operation, as well as how to properly design an engineering process that uses rotary kilns. Chapter 1: The Rotary Kiln Evolution and Phenomenon Chapter 2: Basic Description of Rotary Kiln Operation Chapter 3: Freeboard Aerodynamic Phenomena Chapter 4: Granular Flows in Rotary Kilns Chapter 5: Mixing and Segregation Chapter 6: Combustion and Flame - includes section on types of fuels used in rotary kilns, coal types, ranking and analysis, petroleum coke combustion, scrap tire combustion, pulverized fuel (coal/coke) firing in kilns, pulverized fuel delivery and firing systems. Chapter 7: Freeboard Heat Transfer Chapter 8: Heat Transfer Processes in the Rotary Kiln Bed Chapter 9: Mass and Energy Balance Chapter 10: Rotary Kiln Minerals Process Applications.

Boateng, A.

2008-01-15T23:59:59.000Z

33

Floating seal system for rotary devices  

DOE Patents (OSTI)

This invention relates to a floating seal system for rotary devices to reduce gas leakage around the rotary device in a duct and across the face of the rotary device to an adjacent duct. The peripheral seal bodies are made of resilient material having a generally U-shaped cross section wherein one of the legs is secured to a support member and the other of the legs forms a contacting seal against the rotary device. The legs of the peripheral seal form an extended angle of intersection of about 10.degree. to about 30.degree. in the unloaded condition to provide even sealing forces around the periphery of the rotary device. The peripheral seal extends around the periphery of the support member except where intersected by radial seals which reduce gas leakage across the face of the rotary device and between adjacent duct portions. The radial seal assembly is fabricated from channel bars, the smaller channel bar being secured to the divider of the support member and a larger inverted rigid floating channel bar having its legs freely movable over the legs of the smaller channel bar forming therewith a tubular channel. A resilient flexible tube is positioned within the tubular channel for substantially its full length to reduce gas leakage across the tubular channel. A spacer extends beyond the face of the floating channel near each end of the floating channel a distance to provide desired clearance between the floating channel and the face of the rotary device.

Banasiuk, Hubert A. (Chicago, IL)

1983-01-01T23:59:59.000Z

34

Floating seal system for rotary devices  

DOE Patents (OSTI)

This invention relates to a floating seal system for rotary devices to reduce gas leakage around the rotary device in a duct and across the face of the rotary device to an adjacent duct. The peripheral seal bodies are made of resilient material having a generally U-shaped cross section wherein one of the legs is secured to a support member and the other of the legs forms a contacting seal against the rotary device. The legs of the peripheral seal form an extended angle of intersection of about 10[degree] to about 30[degree] in the unloaded condition to provide even sealing forces around the periphery of the rotary device. The peripheral seal extends around the periphery of the support member except where intersected by radial seals which reduce gas leakage across the face of the rotary device and between adjacent duct portions. The radial seal assembly is fabricated from channel bars, the smaller channel bar being secured to the divider of the support member and a larger inverted rigid floating channel bar having its legs freely movable over the legs of the smaller channel bar forming therewith a tubular channel. A resilient flexible tube is positioned within the tubular channel for substantially its full length to reduce gas leakage across the tubular channel. A spacer extends beyond the face of the floating channel near each end of the floating channel a distance to provide desired clearance between the floating channel and the face of the rotary device. 5 figs.

Banasiuk, H.A.

1983-08-23T23:59:59.000Z

35

Enclosed rotary disc air pulser  

DOE Patents (OSTI)

An enclosed rotary disc air pulser for use with a solvent extraction pulse olumn includes a housing having inlet, exhaust and pulse leg ports, a shaft mounted in the housing and adapted for axial rotation therein, first and second disc members secured to the shaft within the housing in spaced relation to each other to define a chamber therebetween, the chamber being in communication with the pulse leg port, the first disc member located adjacent the inlet port, the second disc member being located adjacent the exhaust port, each disc member having a milled out portion, the disc members positioned on the shaft so that as the shaft rotates, the milled out portions permit alternative cyclical communication between the inlet port and the chamber and the exhaust port and the chamber.

Olson, A. L. (Idaho Falls, ID); Batcheller, Tom A. (Idaho Falls, ID); Rindfleisch, J. A. (Arco, ID); Morgan, John M. (Arco, ID)

1989-01-01T23:59:59.000Z

36

Enclosed rotary disc air pulser  

DOE Patents (OSTI)

This invention is comprised of an enclosed rotary disc air pulser for use with a solvent extraction pulse column includes a housing having inlet, exhaust and pulse leg ports, a shaft mounted in the housing and adapted for axial rotation therein, first and second disc members secured to the shaft within the housing in spaced relation to each other to define a chamber there between, the chamber being in communication with the pulse leg port, and first disc member located adjacent the inlet port, the second disc member being located adjacent the exhaust port, each disc member having a milled out portion, the disc members positioned on the shaft so that as the shaft rotates, the milled out portions permit alternative cyclical communication between the inlet port and the chamber and the exhaust port and chamber. 5 figs.

Olson, A.L.; Batcheller, T.A.; Rindfleisch, J.A.; Morgan, J.M.

1988-08-12T23:59:59.000Z

37

Experimental Results on Advanced Rotary Desiccant Dehumidifiers  

E-Print Network (OSTI)

The Solar Energy Research Institute (SERI) has developed the Cyclic Test Facility (CTF) to develop and validate analytical methods for evaluating and predicting the performance of advanced rotary dehumidifiers. This paper describes the CTF, the dehumidifiers tested at the CTF, and the analytical methods used. The results reported provide an engineering data base and a design tool for evaluating rotary dehumidifiers for desiccant cooling applications.

Barathan, D.; Parsons, J. M.; MaClaine-Cross, I.

1986-01-01T23:59:59.000Z

38

Experimental results on advanced rotary desiccant dehumidifiers  

DOE Green Energy (OSTI)

The Solar Energy Research Institute (SERI) has developed the Cyclic Test Facility (CTF) to develop and validate analytical methods for evaluating and predicting the performance of advanced rotary dehumidifiers. This paper describes the CTF, the dehumidifiers tested at the CTF, and the analytical methods used. The results reported provide an engineering data base and a design tool for evaluating rotary dehumidifiers for desiccant cooling applications.

Bharathan, D.; Parsons, J.; Maclaine-cross, I.

1986-08-01T23:59:59.000Z

39

Mechanical engineers' handbook, energy and power. 3rd ed.  

Science Conference Proceedings (OSTI)

In addition to chapters on thermophysical properties of fluids, fundamentals of fluid mechanics, thermodynamics, heat transfer, combustion, and furnaces, Book 4 of the Handbook features coverage of both conventional (gaseous and liquid fuels, coal, and nuclear) and alternative (solar, geothermal, and fuel cells) energy sources, plus chapters on power machinery, refrigeration and cryogenics, environmental issues, and thermal systems optimization. Much of the material in this book is new or extensively revised, including coverage of such topics as: Heat pipes; Wind turbines; Fuel cells; Thermal systems optimization; Combustion; Fans, blowers, compressors, and pumps; Indoor environmental control; and Fluid power. Chapters of particular interest are: Combustion by Eric Eddings; Furnaces by Carroll Cone; Gaseous fuels by Richard J. Reed; Coals, lignite, peat by James Keppeler; and Air pollution-control technologies by C.A. Miller.

Myer Kutz (ed.)

2005-12-15T23:59:59.000Z

40

Coal desulfurization in a rotary kiln combustor  

Science Conference Proceedings (OSTI)

The purpose of this project was to demonstrate the combustion of coal and coal wastes in a rotary kiln reactor with limestone addition for sulfur control. The rationale for the project was the perception that rotary systems could bring several advantages to combustion of these fuels, and may thus offer an alternative to fluid-bed boilers. Towards this end, an existing wood pyrolysis kiln (the Humphrey Charcoal kiln) was to be suitably refurbished and retrofitted with a specially designed version of a patented air distributor provided by Universal Energy, Inc. (UEI). As the project progressed beyond the initial stages, a number of issues were raised regarding the feasibility and the possible advantages of burning coals in a rotary kiln combustor and, in particular, the suitability of the Humphrey Charcoal kiln as a combustor. Instead, an opportunity arose to conduct combustion tests in the PEDCO Rotary Cascading-Bed Boiler (RCBB) commercial demonstration unit at the North American Rayon CO. (NARCO) in Elizabethton, TN. The tests focused on anthracite culm and had two objectives: (a) determine the feasibility of burning anthracite culms in a rotary kiln boiler and (b) obtain input for any further work involving the Humphrey Charcoal kiln combustor. A number of tests were conducted at the PEDCO unit. The last one was conducted on anthracite culm procured directly from the feed bin of a commercial circulating fluid-bed boiler. The results were disappointing; it was difficult to maintain sustained combustion even when large quantities of supplemental fuel were used. Combustion efficiency was poor, around 60 percent. The results suggest that the rotary kiln boiler, as designed, is ill-suited with respect to low-grade, hard to burn solid fuels, such as anthracite culm. Indeed, data from combustion of bituminous coal in the PEDCO unit suggest that with respect to coal in general, the rotary kiln boiler appears inferior to the circulating fluid bed boiler.

Cobb, J.T. Jr.

1992-09-11T23:59:59.000Z

Note: This page contains sample records for the topic "rotary mechanical power" 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

A rotary-airlock valve resists abrasive mixtures  

SciTech Connect

Hill and Griffith (H and G, Cincinnati, Ohio) is a leading supplier of custom-blended additives to founderies. Thousands of tons of clay and carbon blends such as bentonite, gilsonite and pulverized coal, pass through the company's rotary-airlock feeding system each month. H and G's original rotary valves had cylinders lined with chrome, and closed-end rotors with tips made from nickel-chromium alloys. These valves remained in service for a maximum of only three months each. During that time, the abrasive mixtures passing through the valves virtually eroded them, increasing tolerances and causing significant air leakage. The leaks caused the pneumatic line to plug up, reducing the velocity of the line below the minimum level needed to carry any material. To overcome the leakage, a second blower was added to the system. This unit supplied an additional 40 brake hp to the pneumatic-conveying line. With constant maintenance of the valve and the continuous operation of both blowers, H and G was able to extend the valve's life by nine months. After 20 years of trying valves with various configuration, H and G installed a Smoot Type 6 rotary-airlock valve in September of 1985. The new valve's internals were made from abrasion-resistant grades of NiHard and Stellite. This combination of alloys prolonged the active life of the valve by improving its abrasion resistance. During its first year, the Smoot valve did not break down, leak air or require use of the secondary blower. After its first year of service no wear was found on the valve's internal surfaces. Another mechanical analysis was performed in 1991, after five additional years of valve operation. The valve, which had now handled more than 250,000 tons of product, showed minimal wear. H and G's capital costs had been reduced from 25[cents]/ton to 3[cents]/ton by the new valve.

Not Available

1993-03-01T23:59:59.000Z

42

Internal combustion engine with rotary valve assembly having variable intake valve timing  

DOE Patents (OSTI)

An internal combustion engine has rotary valves associated with movable shutters operable to vary the closing of intake air/fuel port sections to obtain peak volumetric efficiency over the entire range of speed of the engine. The shutters are moved automatically by a control mechanism that is responsive to the RPM of the engine. A foot-operated lever associated with the control mechanism is also used to move the shutters between their open and closed positions.

Hansen, Craig N. (Eden Prairie, MN); Cross, Paul C. (Shorewood, MN)

1995-01-01T23:59:59.000Z

43

Compact fast analyzer of rotary cuvette type  

DOE Patents (OSTI)

A compact fast analyzer of the rotary cuvette type is provided for simultaneously determining concentrations in a multiplicity of discrete samples using either absorbance or fluorescence measurement techniques. A rigid, generally rectangular frame defines optical passageways for the absorbance and fluorescence measurement systems. The frame also serves as a mounting structure for various optical components as well as for the cuvette rotor mount and drive system. A single light source and photodetector are used in making both absorbance and fluorescence measurements. Rotor removal and insertion are facilitated by a swing-out drive motor and rotor mount. BACKGROUND OF THE INVENTION The invention relates generally to concentration measuring instruments and more specifically to a compact fast analyzer of the rotary cuvette type which is suitable for making either absorbance or fluorescence measurements. It was made in the course of, or under, a contract with the U.S. Atomic Energy Commission.

Thacker, Louis H. (Knoxville, TN)

1976-01-01T23:59:59.000Z

44

Rotary Mode Core Sample System availability improvement  

SciTech Connect

The Rotary Mode Core Sample System (RMCSS) is used to obtain stratified samples of the waste deposits in single-shell and double-shell waste tanks at the Hanford Site. The samples are used to characterize the waste in support of ongoing and future waste remediation efforts. Four sampling trucks have been developed to obtain these samples. Truck I was the first in operation and is currently being used to obtain samples where the push mode is appropriate (i.e., no rotation of drill). Truck 2 is similar to truck 1, except for added safety features, and is in operation to obtain samples using either a push mode or rotary drill mode. Trucks 3 and 4 are now being fabricated to be essentially identical to truck 2.

Jenkins, W.W.; Bennett, K.L.; Potter, J.D. [Westinghouse Hanford Co., Richland, WA (United States); Cross, B.T.; Burkes, J.M.; Rogers, A.C. [Southwest Research Institute (United States)

1995-02-28T23:59:59.000Z

45

Solar Power Forecasting at UC San Diego Jan Kleissl, Dept of Mechanical & Aerospace Engineering, UCSD  

E-Print Network (OSTI)

Solar Power Forecasting at UC San Diego Jan Kleissl, Dept of Mechanical & Aerospace Engineering and discharging of fast storage devices with relatively low power (e.g. batteries or supercapacitors) could the economics of solar power. However, accurate short term forecasting of cloudiness is required for efficient

Fainman, Yeshaiahu

46

Scaling self-timed systems powered by mechanical vibration energy harvesting  

Science Conference Proceedings (OSTI)

Passive energy harvesting from mechanical vibration has wide application in wearable devices and wireless sensors to complement or replace batteries. Energy harvesting efficiency can be increased by eliminating AC/DC conversion. A test chip demonstrating ... Keywords: AC power supply, DRAM, energy harvesting, energy-aware systems, integrated circuits, low-power design, power-on reset, scaling, self-timed

Justin Wenck; Jamie Collier; Jeff Siebert; Rajeevan Amirtharajah

2010-06-01T23:59:59.000Z

47

Coal desulfurization in a rotary kiln combustor  

Science Conference Proceedings (OSTI)

BCR National Laboratory (BCRNL) has initiated a project aimed at evaluating the technical and economic feasibility of using a rotary kiln, suitably modified, to burn Pennsylvania anthracite wastes, co-fired with high-sulfur bituminous coal. Limestone will be injected into the kiln for sulfur control, to determine whether high sulfur capture levels can be achieved with high sorbent utilization. The principal objectives of this work are: (1) to prove the feasibility of burning anthracite refuse, with co-firing of high-sulfur bituminous coal and with limestone injection for sulfur emissions control, in a rotary kiln fitted with a Universal Energy International (UEI) air injector system; (2) to determine the emissions levels of SO{sub x} and NO{sub x} and specifically to identify the Ca/S ratios that are required to meet New Source Performance Standards; (3) to evaluate the technical and economic merits of a commercial rotary kiln combustor in comparison to fluidized bed combustors; and, (4) to ascertain the need for further work, including additional combustion tests, prior to commercial application, and to recommend accordingly a detailed program towards this end.

Cobb, J.T. Jr.

1990-08-15T23:59:59.000Z

48

Microsoft PowerPoint - Mechanically Activated Combustion_Shafirovich  

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

Mechanically activated SHS (MASHS) Adds a short-duration high-energy ball milling step before combustion The high-energy milling rapidly produces nanostructured...

49

Microsoft PowerPoint - Wayne_Shirley_Decoupling_Mechanics_and...  

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

expect poor results Utility Financial Structures y Enhance Power of Incentives Few non-production costs vary with sales - So, increased sales increase profits C l d d l d fi -...

50

Rotary Firing in Ring-Shaped Protein Explains Unidirectionality  

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

Rotary Firing in Ring-Shaped Protein Explains Unidirectionality Print Hexameric motor proteins represent a complex class of molecular machines that variously push and pull on...

51

A unidirectional rotary solenoid as applied to stronglinks  

Science Conference Proceedings (OSTI)

This paper describes the design goals and results of an advanced development stronglink project with special emphasis on a new rotary solenoid concept. 10 figs.

Kenderdine, E.W.

1988-01-01T23:59:59.000Z

52

Say it with Systems: Expanding Kodu's Expressive Power through Gender-Inclusive Mechanics  

E-Print Network (OSTI)

Say it with Systems: Expanding Kodu's Expressive Power through Gender-Inclusive Mechanics Teale@etr.org ° Microsoft FUSE Labs mattmac@microsoft.com ABSTRACT While game mechanics are a primary focus in game design and programming environments. But game mechanics are central here as well, with different tools supporting

California at Santa Cruz, University of

53

Axiomatic design of a manually powered wheelchair lift mechanism  

E-Print Network (OSTI)

The objective of this research is to create an inexpensive mechanism which gives wheelchair users the ability to adjust the vertical height of their chair while seated. There are currently 1.5 million manual wheelchair ...

DiGenova, Kevin (Kevin J.)

2007-01-01T23:59:59.000Z

54

Rotary powder feed through apparatus  

DOE Patents (OSTI)

A device for increasing the uniformity of solids within a solids fabrication system, such as a direct light fabrication (DLF) system in which gas entrained powders are passed through the focal point of a moving high-power light which fuses the particles in the powder to a surface being built up in layers. The invention provides a feed through interface wherein gas entrained powders input from stationary input lines are coupled to a rotating head of the fabrication system. The invention eliminates the need to provide additional slack in the feed lines to accommodate head rotation, and therefore reduces feed line bending movements which induce non-uniform feeding of gas entrained powder to a rotating head.

Lewis, Gary K. (Los Alamos, NM); Less, Richard M. (Los Alamos, NM)

2001-01-01T23:59:59.000Z

55

Mathematical model and the dynamic simulation of an electromechanical rotary device. [SLENOID  

SciTech Connect

A mathematical model of an electro-mechanical rotary device is presented. This device contains a rotor, stator, and two spring-loaded arms which restrict the rotor motion. The desired action is the alignment of the rotor and the consequent movement of the arms. The SLENOID computer program for calculating the magnetic torque, air gap permeance, spring torque, damping effects, and motion of the rotor and arms is described. (LCL)

Emergy, J.D.

1980-02-01T23:59:59.000Z

56

Study on the Bond Mechanism of Vanadium Titano-magnetite ...  

Science Conference Proceedings (OSTI)

Abstract Scope, The bond mechanism of vanadium titano-magnetite pellets mixed with coal powder by rotary hearth furnace was studied under the condition of...

57

22.314J / 1.56J / 2.084J Structural Mechanics in Nuclear Power Technology, Spring 2004  

E-Print Network (OSTI)

Structural components in nuclear power plant systems, their functional purposes, operating conditions, and mechanical-structural design requirements. Combines mechanics techniques with models of material behavior to determine ...

Kazimi, Mujid S.

58

Mechanical beam isolator for high-power laser systems  

DOE Patents (OSTI)

A mechanical beam isolator uses rod-shaped elements having a Gaussian configuration to interrupt the path of a beam of photons or particles when the time-scale of the needed interruption is of the order of a microsecond or less. One or more of these rods is mounted transversely to, and penetrates through, a rotating shaft supported by bearings. Owing to the Gaussian geometry of the rods, they are able to withstand much higher rotation speeds, without tensile failure, than rods having any other geometrical shape.

Post, Richard F. (Walnut Creek, CA); Vann, Charles S. (Fremont, CA)

1998-01-01T23:59:59.000Z

59

Coal desulfurization in a rotary kiln combustor  

Science Conference Proceedings (OSTI)

Several issues that could have an impact on the capability to burn anthracite culm in a rotary bed boiler were identified; specifically, questions were raised concerning the specifications of the anthracite culm itself and some relating to the equipment. The anthracite culm delivered was wet, (with more than 10 percent moisture), and coarser than feed material for fluidized boilers. It was felt that using finer fuel, ensuring that it is largely dry, would aid the combustion of anthracite culm. It also appeared that if provisions were made for more efficient internal and external recycle of ash, this would also enhance the combustion of this fuel. Accordingly, the decision was made to conduct an additional campaign of tests that would incorporate these changes. The tests, conducted on July 15 and 16, 1991, involved an anthracite culm that was, in fact, obtained from a fluidized bed a heating value of 3,000 Btu/lb and came with a top size of 1/4-inch. Despite these changes, sustained combustion could not be achieved without the use of large quantities of supplemental fuel. Based on these tests, we tend to conclude that the rotary kiln is ill suited for the combustion of hard-to-burn, low-grade solid fuels like anthracite culm.

Cobb, J.T. Jr.

1991-08-29T23:59:59.000Z

60

Results of the 1000 Hour Rotary Microfilter Endurance Test  

Stellite on Nitronic 60. 8 SRNL-L3100-2010-00229 Rotary Microfilter 1000 Hour Test Flux Data for 1000 Hour Test 0 1 2 3 4 5 6 0 100 200 300 400 500 ...

Note: This page contains sample records for the topic "rotary mechanical power" 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

Thermal And Mechanical Analysis of High-power Light-emitting Diodes with Ceramic Packages  

E-Print Network (OSTI)

In this paper we present the thermal and mechanical analysis of high-power light-emitting diodes (LEDs) with ceramic packages. Transient thermal measurements and thermo-mechanical simulation were performed to study the thermal and mechanical characteristics of ceramic packages. Thermal resistance from the junction to the ambient was decreased from 76.1 oC/W to 45.3 oC/W by replacing plastic mould to ceramic mould for LED packages. Higher level of thermo-mechanical stresses in the chip were found for LEDs with ceramic packages despite of less mismatching coefficients of thermal expansion comparing with plastic packages. The results suggest that the thermal performance of LEDs can be improved by using ceramic packages, but the mounting process of the high power LEDs with ceramic packages is critically important and should be in charge of delaminating interface layers in the packages.

J. Hu; L. Yang; M. -W. Shin

2008-01-07T23:59:59.000Z

62

Designing power system simulators for the smart grid: combining controls, communications, and electro-mechanical dynamics  

Science Conference Proceedings (OSTI)

Open source software has a leading role in research on simulation technology for electrical power systems. Research simulators demonstrate new features for which there is nascent but growing demand not yet provided for by commercial simulators. Of particular interest is the inclusion of models of software-intensive and communication-intensive controls in simulations of power system transients. This paper describes two features of the ORNL power system simulator that help it meet this need. First is its use of discrete event simulation for all aspects of the model: control, communication, and electro-mechanical dynamics. Second is an interoperability interface that enables the ORNL power system simulator to be integrated with existing, discrete event simulators of digital communication systems. The paper concludes with a brief discussion of how these aspects of the ORNL power system simulator might be inserted into production-grade simulation tools.

Nutaro, James J [ORNL

2011-01-01T23:59:59.000Z

63

Aging Management Guidelines for Commercial Nuclear Power Plants -- Electrical and Mechanical Penetrations  

Science Conference Proceedings (OSTI)

As part of the application process for license renewal, nuclear utilities must perform an evaluation to confirm that they have appropriately considered aging effects on plant components within the scope of the License Renewal Rule. This report provides guidelines for managing relevant degradation mechanisms applicable to electrical and mechanical penetrations in nuclear power plants. Use of these guidelines will provide utilities with a basis for verifying that effective methods for managing age-related ...

2002-04-25T23:59:59.000Z

64

TESTING OF THE DUAL ROTARY FILTER SYSTEM  

SciTech Connect

The Savannah River National Laboratory (SRNL) installed and tested two hydraulically connected SpinTek rotary microfilter (RMF) units to determine the behavior of a multiple filter system. Both units were successfully controlled by a control scheme written in DELTA-V architecture by Savannah River Remediation (SRR) Process Control Engineering personnel. The control system was tuned to provide satisfactory response to changing conditions during the operation of the multi-filter system. Stability was maintained through the startup and shutdown of one of the filter units while the second was still in operation. The installation configuration originally proposed by the Small Colum Ion Exchange (SCIX) project of independent filter and motor mountings may be susceptible to vibration. Significant stiffening of the filter and motor mounts was required to minimize the vibration. Alignment of the motor to the filter was a challenge in this test configuration. The deployment configuration must be easy to manipulate and allow for fine adjustment. An analysis of the vibration signature of the test system identified critical speeds. Whether it corresponds to the resonance frequency of a rotor radial vibration mode that was excited by rotor unbalance is uncertain based upon the measurements. A relative motion series should be completed on the filter with the final shaft configuration to determine if the resonances exist in the final filter design. The instrumentation selected for deployment, including the concentrate discharge control valve and flow meters, performed well. Automation of the valve control integrated well with the control scheme and when used in concert with the other control variables, allowed automated control of the dual RMF system. The one area of concern with the instrumentation was the condition resulting when the filtrate flow meter operated with less than three gpm. This low flow was at the lower range of performance for the flow meter. This should not be an issue in deployment where the desired flow rate will be within the normal operating range of the meter. Testing demonstrated that the use of a flexible line for the filtrate discharge is highly desired at the outlet of the rotary union to transition to the system piping. Isolating the vibration from the rotary union will significantly improve the lifetime of the seals. Methods to monitor and isolate individual filters should be considered during deployment. The ability to diagnose issues and isolate individual filters would allow isolation prior to failure. Thus, filters may be cleaned or repaired instead of requiring complete replacement if the condition were to continue unnoticed. Isolating the filtrate line of each filter during startup will minimize the premature buildup of solids on the filter disks. Several tests have shown that the method of filter startup can improve performance lifetime of the filters. The installation must factor in an air inlet for the draining of a filter that does not involve a reverse flow through the filter disks. The reverse flow may cause deformation of the disks or may damage other components of the filters themselves.

Herman, D.; Fowley, M.; Stefanko, D.

2011-08-29T23:59:59.000Z

65

Hydrodynamically Lubricated Rotary Shaft Having Twist Resistant Geometry  

SciTech Connect

A hydrodynamically lubricated squeeze packing type rotary shaft with a cross-sectional geometry suitable for pressurized lubricant retention is provided which, in the preferred embodiment, incorporates a protuberant static sealing interface that, compared to prior art, dramatically improves the exclusionary action of the dynamic sealing interface in low pressure and unpressurized applications by achieving symmetrical deformation of the seal at the static and dynamic sealing interfaces. In abrasive environments, the improved exclusionary action results in a dramatic reduction of seal and shaft wear, compared to prior art, and provides a significant increase in seal life. The invention also increases seal life by making higher levels of initial compression possible, compared to prior art, without compromising hydrodynamic lubrication; this added compression makes the seal more tolerant of compression set, abrasive wear, mechanical misalignment, dynamic runout, and manufacturing tolerances, and also makes hydrodynamic seals with smaller cross-sections more practical. In alternate embodiments, the benefits enumerated above are achieved by cooperative configurations of the seal and the gland which achieve symmetrical deformation of the seal at the static and dynamic sealing interfaces. The seal may also be configured such that predetermined radial compression deforms it to a desired operative configuration, even through symmetrical deformation is lacking.

Dietle, Lannie (Houston, TX); Gobeli, Jeffrey D. (Houston, TX)

1993-07-27T23:59:59.000Z

66

Rotary Firing in Ring-Shaped Protein Explains Unidirectionality  

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

Rotary Firing in Ring-Shaped Protein Rotary Firing in Ring-Shaped Protein Explains Unidirectionality Rotary Firing in Ring-Shaped Protein Explains Unidirectionality Print Wednesday, 28 April 2010 00:00 Hexameric motor proteins represent a complex class of molecular machines that variously push and pull on biological molecules using adenosine triphosphate (ATP) as chemical fuel. A specialized class of ring-shaped motor proteins, hexameric helicases, can unwind DNA strands and perform large-scale manipulations of single-stranded nucleic acids in processes such as DNA replication, DNA repair, and gene expression. To understand how certain hexameric helicases walk with directional polarity along single-stranded nucleic acids, Berkeley researchers used x-ray crystallography at the ALS to solve the structure of a hexameric helicase, the Rho transcription termination factor (from E. coli), bound to both ATP mimics and an RNA substrate. The results showed that Rho functions like a rotary engine: as the motor spins, it pulls RNA strands through its interior. Interestingly, the rotary firing order of the motor is biased so that the Rho protein can walk in only one direction along the RNA chain.

67

Rotary Firing in Ring-Shaped Protein Explains Unidirectionality  

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

Rotary Firing in Ring-Shaped Rotary Firing in Ring-Shaped Protein Explains Unidirectionality Rotary Firing in Ring-Shaped Protein Explains Unidirectionality Print Wednesday, 28 April 2010 00:00 Hexameric motor proteins represent a complex class of molecular machines that variously push and pull on biological molecules using adenosine triphosphate (ATP) as chemical fuel. A specialized class of ring-shaped motor proteins, hexameric helicases, can unwind DNA strands and perform large-scale manipulations of single-stranded nucleic acids in processes such as DNA replication, DNA repair, and gene expression. To understand how certain hexameric helicases walk with directional polarity along single-stranded nucleic acids, Berkeley researchers used x-ray crystallography at the ALS to solve the structure of a hexameric helicase, the Rho transcription termination factor (from E. coli), bound to both ATP mimics and an RNA substrate. The results showed that Rho functions like a rotary engine: as the motor spins, it pulls RNA strands through its interior. Interestingly, the rotary firing order of the motor is biased so that the Rho protein can walk in only one direction along the RNA chain.

68

Integrated Status and Effectiveness Monitoring Program - Entiat River Snorkel Surveys and Rotary Screw Trap, 2007.  

DOE Green Energy (OSTI)

The USFWS Mid-Columbia River Fishery Resource Office conducted snorkel surveys at 24 sites during the summer and fall periods of 2006 survey periods as part of the Integrated Status and Effectiveness Monitoring Program in the Entiat River. A total of 37,938 fish from 15 species/genera and an unknown category were enumerated. Chinook salmon were the overall most common fish observed and comprised 15% of fish enumerated followed by rainbow trout (10%) and mountain whitefish (7%). Day surveys were conducted during the summer period 2007 (August), while night surveys were conducted during the fall 2007 (October) surveys. The USFWS Mid-Columbia River Fishery Resource Office (MCFRO) operated two rotary screw traps on the Entiat River as part of the Integrated Status and Effectiveness Monitoring Program (ISEMP) program from August through November of 2007. Along with the smolt traps, juvenile emigrants were also captured at remote locations throughout the Entiat watershed and its major tributary, the Mad River. A total of 999 wild Oncorhynchus mykiss and 5,107 wild run O. tshawytscha were PIT tagged during the study period. Rotary screw trap efficiencies averaged 22.3% for juvenile O. tshawytscha and 9.0% for juvenile O. mykiss. Rotary screw traps operated 7 days a week and remote capture operations were conducted when flow and temperature regimes permitted. This is third annual progress report to Bonneville Power Administration for the snorkel surveys conducted in the Entiat River as related to long-term effectiveness monitoring of restoration programs in this watershed. The objective of this study is to monitor the fish habitat utilization of planned in-stream restoration efforts in the Entiat River by conducting pre- and post-construction snorkel surveys at selected treatment and control sites.

Nelle, R.D.

2008-01-01T23:59:59.000Z

69

Microminiaturized minimally invasive intravascular micro-mechanical systems powered and controlled via fiber-optic cable  

DOE Patents (OSTI)

A micro-mechanical system for medical procedures is constructed in the basic form of a catheter having a distal end for insertion into and manipulation within a body and a near end providing for a user to control the manipulation of the distal end within the body. A fiberoptic cable is disposed within the catheter and having a distal end proximate to the distal end of the catheter and a near end for external coupling of laser light energy. A microgripper is attached to the distal end of the catheter and providing for the gripping or releasing of an object within the body. A laser-light-to-mechanical-power converter is connected to receive laser light from the distal end of the fiberoptic cable and connected to mechanically actuate the microgripper.

Fitch, Joseph P. (Livermore, CA); Hagans, Karla (Livermore, CA); Clough, Robert (Danville, CA); Matthews, Dennis L. (Moss Beach, CA); Lee, Abraham P. (Walnut Creek, CA); Krulevitch, Peter A. (Los Altos, CA); Benett, William J. (Livermore, CA); Da Silva, Luiz (Danville, CA); Celliers, Peter M. (Berkeley, CA)

1998-01-01T23:59:59.000Z

70

Microminiaturized minimally invasive intravascular micro-mechanical systems powered and controlled via fiber-optic cable  

DOE Patents (OSTI)

A micro-mechanical system for medical procedures is constructed in the basic form of a catheter having a distal end for insertion into and manipulation within a body and a near end providing for a user to control the manipulation of the distal end within the body. A fiber-optic cable is disposed within the catheter and having a distal end proximate to the distal end of the catheter and a near end for external coupling of laser light energy. A microgripper is attached to the distal end of the catheter and providing for the gripping or releasing of an object within the body. A laser-light-to-mechanical-power converter is connected to receive laser light from the distal end of the fiber-optic cable and connected to mechanically actuate the microgripper. 22 figs.

Fitch, J.P.; Hagans, K.; Clough, R.; Matthews, D.L.; Lee, A.P.; Krulevitch, P.A.; Benett, W.J.; Silva, L. Da; Celliers, P.M.

1998-03-03T23:59:59.000Z

71

BACKPRESSURE TESTING OF ROTARY MICROFILTER DISKS  

Science Conference Proceedings (OSTI)

The Savannah River National Laboratory (SRNL), under the Department of Energy (DOE) Office of Environmental Management (EM), is modifying and testing the SpinTek{trademark} rotary microfilter (RMF) for radioactive filtration service in the Department of Energy (DOE) complex. The RMF has been shown to improve filtration throughput when compared to other conventional methods such as cross-flow filtration. A concern with the RMF was that backpressure, or reverse flow through the disk, would damage the filter membranes. Reverse flow might happen as a result of an inadvertent valve alignment during flushing. Testing was completed in the Engineering Development Laboratory (EDL) located in SRNL to study the physical effects of backpressure as well as to determine the maximum allowable back-pressure for RMF disks. The RMF disks tested at the EDL were manufactured by SpinTek{trademark} Filtration and used a Pall Corporation PMM050 filter membrane (0.5 micron nominal pore size) made from 316L stainless steel. Early versions of the RMF disks were made from synthetic materials that were incompatible with caustic solutions and radioactive service as well as being susceptible to delaminating when subjected to backpressure. Figure 1-1 shows the essential components of the RMF; 3 rotating disks and 3 stationary turbulence promoters (or shear elements) are shown. Figure 1-2 show the assembly view of a 25 disk RMF proposed for use at the Savannah River Site (SRS) and at the Hanford Facility. The purpose of the testing discussed in this report was to determine the allowable backpressure for RMF disks as well as study the physical effects of backpressure on RMF disks made with the Pall PMM050 membrane. This was accomplished by pressurizing the disks in the reverse flow direction (backpressure) until the test limit was reached or until membrane failure occurred. Backpressure was applied to the disks with air while submerged in deionized (DI) water. This method provided a visual representation of membrane integrity via bubble flow patterns. Membrane failure was defined as the inability to filter effectively at the nominal filter pore size. Effective filtration was determined by turbidity measurements of filtrate that was produced by applying forward-pressure to the disks while submerged in a representative simulant. The representative simulant was Tank 8F simulated sludge produced for SRNL by Optima Chemical. Two disks were tested. Disk 1 was tested primarily to determine approximate levels of backpressure where membrane failure occurred. These levels were then used to define the strategy for testing the Disk 2; a strategy that would better define and quantify the mode of failure.

Fowley, M.; Herman, D.

2011-04-14T23:59:59.000Z

72

Rotary Firing in Ring-Shaped Protein Explains Unidirectionality  

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

Rotary Firing in Ring-Shaped Protein Explains Unidirectionality Print Rotary Firing in Ring-Shaped Protein Explains Unidirectionality Print Hexameric motor proteins represent a complex class of molecular machines that variously push and pull on biological molecules using adenosine triphosphate (ATP) as chemical fuel. A specialized class of ring-shaped motor proteins, hexameric helicases, can unwind DNA strands and perform large-scale manipulations of single-stranded nucleic acids in processes such as DNA replication, DNA repair, and gene expression. To understand how certain hexameric helicases walk with directional polarity along single-stranded nucleic acids, Berkeley researchers used x-ray crystallography at the ALS to solve the structure of a hexameric helicase, the Rho transcription termination factor (from E. coli), bound to both ATP mimics and an RNA substrate. The results showed that Rho functions like a rotary engine: as the motor spins, it pulls RNA strands through its interior. Interestingly, the rotary firing order of the motor is biased so that the Rho protein can walk in only one direction along the RNA chain.

73

Rotary Firing in Ring-Shaped Protein Explains Unidirectionality  

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

Rotary Firing in Ring-Shaped Protein Explains Unidirectionality Print Rotary Firing in Ring-Shaped Protein Explains Unidirectionality Print Hexameric motor proteins represent a complex class of molecular machines that variously push and pull on biological molecules using adenosine triphosphate (ATP) as chemical fuel. A specialized class of ring-shaped motor proteins, hexameric helicases, can unwind DNA strands and perform large-scale manipulations of single-stranded nucleic acids in processes such as DNA replication, DNA repair, and gene expression. To understand how certain hexameric helicases walk with directional polarity along single-stranded nucleic acids, Berkeley researchers used x-ray crystallography at the ALS to solve the structure of a hexameric helicase, the Rho transcription termination factor (from E. coli), bound to both ATP mimics and an RNA substrate. The results showed that Rho functions like a rotary engine: as the motor spins, it pulls RNA strands through its interior. Interestingly, the rotary firing order of the motor is biased so that the Rho protein can walk in only one direction along the RNA chain.

74

Rotary Firing in Ring-Shaped Protein Explains Unidirectionality  

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

Rotary Firing in Ring-Shaped Protein Explains Unidirectionality Print Rotary Firing in Ring-Shaped Protein Explains Unidirectionality Print Hexameric motor proteins represent a complex class of molecular machines that variously push and pull on biological molecules using adenosine triphosphate (ATP) as chemical fuel. A specialized class of ring-shaped motor proteins, hexameric helicases, can unwind DNA strands and perform large-scale manipulations of single-stranded nucleic acids in processes such as DNA replication, DNA repair, and gene expression. To understand how certain hexameric helicases walk with directional polarity along single-stranded nucleic acids, Berkeley researchers used x-ray crystallography at the ALS to solve the structure of a hexameric helicase, the Rho transcription termination factor (from E. coli), bound to both ATP mimics and an RNA substrate. The results showed that Rho functions like a rotary engine: as the motor spins, it pulls RNA strands through its interior. Interestingly, the rotary firing order of the motor is biased so that the Rho protein can walk in only one direction along the RNA chain.

75

Rotary Firing in Ring-Shaped Protein Explains Unidirectionality  

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

Rotary Firing in Ring-Shaped Protein Explains Unidirectionality Print Rotary Firing in Ring-Shaped Protein Explains Unidirectionality Print Hexameric motor proteins represent a complex class of molecular machines that variously push and pull on biological molecules using adenosine triphosphate (ATP) as chemical fuel. A specialized class of ring-shaped motor proteins, hexameric helicases, can unwind DNA strands and perform large-scale manipulations of single-stranded nucleic acids in processes such as DNA replication, DNA repair, and gene expression. To understand how certain hexameric helicases walk with directional polarity along single-stranded nucleic acids, Berkeley researchers used x-ray crystallography at the ALS to solve the structure of a hexameric helicase, the Rho transcription termination factor (from E. coli), bound to both ATP mimics and an RNA substrate. The results showed that Rho functions like a rotary engine: as the motor spins, it pulls RNA strands through its interior. Interestingly, the rotary firing order of the motor is biased so that the Rho protein can walk in only one direction along the RNA chain.

76

Rotary Firing in Ring-Shaped Protein Explains Unidirectionality  

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

Rotary Firing in Ring-Shaped Protein Explains Unidirectionality Print Rotary Firing in Ring-Shaped Protein Explains Unidirectionality Print Hexameric motor proteins represent a complex class of molecular machines that variously push and pull on biological molecules using adenosine triphosphate (ATP) as chemical fuel. A specialized class of ring-shaped motor proteins, hexameric helicases, can unwind DNA strands and perform large-scale manipulations of single-stranded nucleic acids in processes such as DNA replication, DNA repair, and gene expression. To understand how certain hexameric helicases walk with directional polarity along single-stranded nucleic acids, Berkeley researchers used x-ray crystallography at the ALS to solve the structure of a hexameric helicase, the Rho transcription termination factor (from E. coli), bound to both ATP mimics and an RNA substrate. The results showed that Rho functions like a rotary engine: as the motor spins, it pulls RNA strands through its interior. Interestingly, the rotary firing order of the motor is biased so that the Rho protein can walk in only one direction along the RNA chain.

77

Rotary Firing in Ring-Shaped Protein Explains Unidirectionality  

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

Rotary Firing in Ring-Shaped Protein Explains Unidirectionality Print Rotary Firing in Ring-Shaped Protein Explains Unidirectionality Print Hexameric motor proteins represent a complex class of molecular machines that variously push and pull on biological molecules using adenosine triphosphate (ATP) as chemical fuel. A specialized class of ring-shaped motor proteins, hexameric helicases, can unwind DNA strands and perform large-scale manipulations of single-stranded nucleic acids in processes such as DNA replication, DNA repair, and gene expression. To understand how certain hexameric helicases walk with directional polarity along single-stranded nucleic acids, Berkeley researchers used x-ray crystallography at the ALS to solve the structure of a hexameric helicase, the Rho transcription termination factor (from E. coli), bound to both ATP mimics and an RNA substrate. The results showed that Rho functions like a rotary engine: as the motor spins, it pulls RNA strands through its interior. Interestingly, the rotary firing order of the motor is biased so that the Rho protein can walk in only one direction along the RNA chain.

78

Micro rotary machine and methods for using same  

SciTech Connect

A micro rotary machine may include a micro actuator and a micro shaft coupled to the micro actuator. The micro shaft comprises a horizontal shaft and is operable to be rotated by the micro actuator. A micro tool is coupled to the micro shaft and is operable to perform work in response to motion of the micro shaft.

Stalford, Harold L. (Norman, OK)

2012-04-17T23:59:59.000Z

79

Mechanical Design and Fabrication of a New RF Power Amplifier for LANSCE  

SciTech Connect

A Full-scale prototype of a new 201.25 MHz RF Final Power Amplifier (FPA) for Los Alamos Neutron Science Center (LANSCE) has been designed, fabricated, assembled and installed in the test facility. This prototype was successfully tested and met the physics and electronics design criteria. The team faced design and manufacturing challenges, having a goal to produce 2 MW peak power at 13% duty factor, at the elevation of over 2 km in Los Alamos. The mechanical design of the final power amplifier was built around a Thales TH628 Diacrode{sup R}, a state-of-art tetrode power tube. The main structure includes Input circuit, Output circuit, Grid decoupling circuit, Output coupler, Tuning pistons, and a cooling system. Many types of material were utilized to make this new RF amplifier. The fabrication processes of the key components were completed in the Prototype Fabrication Division shop at Los Alamos National Laboratory. The critical plating procedures were achieved by private industry. The FPA mass is nearly 600 kg and installed in a beam structural support stand. In this paper, we summarize the FPA design basis and fabrication, plating, and assembly process steps with necessary lifting and handling fixtures. In addition, to ensure the quality of the FPA support structure a finite element analysis with seismic design forces has also been carried out.

Chen, Zukun [Los Alamos National Laboratory

2011-01-01T23:59:59.000Z

80

On-line mechanical tube cleaning for steam electric power plants. Final report  

SciTech Connect

In July 1991, Superior I.D. Tube Cleaners, Inc. (SIDTEC{trademark}) received a grant through the Department of Energy and the Energy Related Invention Program to conduct a long term demonstration of a proprietary technology for on-line mechanical condenser tube cleaning in thermal Power plants on open or once-through cooling water systems where the warmed condenser cooling water is discharged through a canal. The purpose of the demonstration was to confirm and establish the use of this mechanical method as an alternative to the application of chemical biocides in condenser cooling water for the control of biofouling, the growth of micro-organisms which can reduce a unit`s operating efficiency. The SIDTEC on-line mechanical tube cleaner, the Rocket{trademark}, is used to physically remove accumulated deposits on the water side of the main steam condenser, and the non-intrusive tube cleaner recovery system, the Skimmer{trademark}, is used to recover and recirculate tube cleaners. The periodic circulation of tube cleaners can maintain optimum condenser cleanliness and improve unit heat rate. Thermal power plants which discharge condenser cooling water through a canal now have a viable alternative to the chemical treatment of condenser cooling water, whether the principal foulant is biofouling, chemical scaling, silting, or a combination of the three. At prices competitive with scale inhibitors, and a fraction of competing mechanical systems, this technology is provided as a service requiring no capital investment; minimal retrofit modifications to plant structures or equipment; can be installed and maintained without a unit shutdown; does not add any restrictions in the cooling water system; and is environmentally benign.

Not Available

1994-02-18T23:59:59.000Z

Note: This page contains sample records for the topic "rotary mechanical power" 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

EVALUATION OF ALTERNATIVE FILTER MEDIA FOR THE ROTARY MICROFILTER  

SciTech Connect

SRS is currently developing and testing several processes to treat high level radioactive liquid waste. These processes include the Integrated Salt Disposition Process (ISDP), the Salt Waste Processing Facility (SWPF), and the Small Column Ion Exchange Process (SCIX). Each of these processes has a solid-liquid separation process that limits its throughput. SRNL researchers identified and tested the rotary microfilter as a technology to increase solid-liquid separation throughput. The testing showed significant improvement in filter flux with the rotary microfilter over the baseline crossflow filter (i.e., 2.5-6.5X during scoping tests, as much as 10X in actual waste tests, and approximately 3X in pilot-scale tests). SRNL received funding from DOE EM-21, and subsequently DOE EM-31 to develop the rotary microfilter for high level radioactive service. The work has included upgrading the rotary microfilter for radioactive service, testing with simulated SRS waste streams, and testing it with simulated Hanford waste streams. While the filtration rate is better than that obtained during testing of crossflow filters, the authors believe the rotary microfilter throughput can be improved by using a better filter membrane. The rotary microfilter membrane is made of stainless steel (Pall PMM050). Previous testing, funded by DOE EM-21, showed that asymmetric filters composed of a ceramic membrane on top of a stainless steel support produced higher filter flux than 100% stainless steel symmetric filters in crossflow filter tests. In that testing, the Pall Accusep and Graver filters produced 13-21% larger filter flux than the baseline 0.1 {micro}m Mott filter. While the improvement in flux is not as dramatic as the improvement of the rotary filter over a crossflow filter, a 13-21% increase could reduce the lifetime of a 30 year process by 4-6 years, with significant cost savings. Subsequent rotary filter testing showed the Pall PMM050 stainless steel filter membrane produced higher flux than the Mott filter media in bench-scale and pilot-scale testing. The Accusep and Graver filter media were not evaluated in that testing, because they are not available as flat sheets. The Accusep filter was developed at ORNL and licensed to Pall Corporation. This filter has a stainless steel support structure with a zirconium oxide ceramic membrane. The pore size is 0.1 {micro}m absolute. The Graver filter has a stainless steel support structure with a titanium dioxide ceramic membrane. The pore size is 0.07 {micro}m absolute. SRNL and ORNL are working together to develop filter media similar to the Accusep and Graver media, and to test them in a bench-scale filtration apparatus to attempt to improve the throughput of the rotary microfilter. This report describes the effort.

Poirier, M.; Herman, D.; Bhave, R.

2011-09-13T23:59:59.000Z

82

Solids transportation model of an industrial rotary dryer  

SciTech Connect

A complete simulation model has been developed for an industrial rotary dryer to account for the heat and mass exchange between the solids and the gas. This simulator is mainly composed of three models: solids transportation model, furnace model, and gas model. The solids transportation model is the modified Cholette-Cloutier model. It consists of a series of interactive reservoirs which are subdivided into an active and dead compartments to account for the characteristic extended tail of the residence time distribution (RTD) curves observed in industrial dryers. To expand the validity of the model, experiments have been performed in an industrial rotary dryer to obtain RTD curves under different mineral concentrate and gas flow rates. This paper describes these experiments and presents the variation of the average residence time and model parameters as function of solids and gas flow rates.

Renaud, M.; Thibault, J.; Trusiak, A.

2000-05-01T23:59:59.000Z

83

Proceedings of a Topical Meeting On Small Scale Geothermal Power Plants and Geothermal Power Plant Projects  

Science Conference Proceedings (OSTI)

These proceedings describe the workshop of the Topical Meeting on Small Scale Geothermal Power Plants and Geothermal Power Plant Projects. The projects covered include binary power plants, rotary separator, screw expander power plants, modular wellhead power plants, inflow turbines, and the EPRI hybrid power system. Active projects versus geothermal power projects were described. In addition, a simple approach to estimating effects of fluid deliverability on geothermal power cost is described starting on page 119. (DJE-2005)

None

1986-02-12T23:59:59.000Z

84

Skew and twist resistant hydrodynamic rotary shaft seal  

DOE Patents (OSTI)

A hydrodynamically lubricated squeeze packing type rotary shaft seal suitable for lubricant retention and environmental exclusion which incorporates one or more resilient protuberances which cooperate with the gland walls to hold the seal straight in its installation groove in unpressurized and low pressure lubricant retention applications thereby preventing skew-induced wear caused by impingement of abrasive contaminants present in the environment, and which also serve as radial bearings to prevent tipping of the seal within its installation gland. 14 figs.

Dietle, L.; Kalsi, M.S.

1999-02-23T23:59:59.000Z

85

Skew and twist resistant hydrodynamic rotary shaft seal  

DOE Patents (OSTI)

A hydrodynamically lubricated squeeze packing type rotary shaft seal suitable for lubricant retention and environmental exclusion which incorporates one or more resilient protuberances which and cooperate with the gland walls to hold the seal straight in its installation groove in unpressurized and low pressure lubricant retention applications thereby preventing skew-induced wear caused by impingement of abrasive contaminants present in the environment, and which also serve as radial bearings to prevent tipping of the seal within its installation gland.

Dietle, Lannie (Sugar Land, TX); Kalsi, Manmohan Singh (Houston, TX)

1999-01-01T23:59:59.000Z

86

Rotary union for use with ultrasonic thickness measuring probe  

DOE Patents (OSTI)

A rotary union for rotatably supporting an ultrasonic probe operable to nondestructively measure the thickness of steam generator tubes to determine the amount of corrosion experienced by the tubes includes a stationary body having a bore therethrough and an outlet drain, and a fitting rotatably mounted within the upper end of the body. The fitting has a bore aligned with the bore of the body. An electrical cable positioned within a water supply tube in an annular arrangement passes through the bore of the body and the bore of the fitting. This annular arrangement, in turn, is positioned within a connector element which extends outwardly from the fitting bore and is connected to the ultrasonic probe. An elastomeric lower bushing seals the annular arrangement to the lower end of the rotary union body and an elastomeric upper bushing seals the connector element to the fitting to permit the connector element and the ultrasonic probe connected thereto to rotate with the fitting relative to the body. The lower and upper bushings permit water to be passed through the annular arrangement and into the ultrasonic probe and thereafter discharged between the annular arrangement and the connector element to the outlet drain of the rotary union body. 5 figs.

Nachbar, H.D.

1992-09-15T23:59:59.000Z

87

Evaluation of Alternative Filter Media for the Rotary Microfilter  

SciTech Connect

The Savannah River Site is currently developing and testing several processes to treat high level radioactive liquid waste. Each of these processes has a solid-liquid separation process that limits its throughput. Savannah River National Laboratory researchers identified and tested the rotary microfilter as a technology to increase solid-liquid separation throughput. The authors believe the rotary microfilter throughput can be improved by using a better filter membrane. Previous testing showed that asymmetric filters composed of a ceramic membrane on top of a stainless steel support produced higher filter flux than 100% stainless steel symmetric filters in crossflow filter tests. Savannah River National Laboratory and Oak Ridge National Laboratory are working together to develop asymmetric ceramic ? stainless steel composite filters and asymmetric 100% stainless steel filters to improve the throughput of the rotary microfilter. The Oak Ridge National Laboratory Inorganic Membrane Group fabricated samples of alternative filter membranes. In addition, Savannah River National Laboratory obtained samples of filter membranes from Pall, Porvair, and SpinTek. They tested these samples in a static test cell with feed slurries containing monosodium titanate and simulated sludge.

Poirier, M. R.; Herman, D. T.; Bhave, R.

2011-11-09T23:59:59.000Z

88

Examination of incentive mechanisms for innovative technologies applicable to utility and nonutility power generators  

SciTech Connect

Innovative technologies, built by either utility or nonutility power generators, have the potential to lower costs with less environmental emissions than conventional technologies. However, the public-good nature of information, along with uncertain costs, performance, and reliability, discourages rapid adoption of these technologies. The effect of regulation of electricity production may also have an adverse impact on motivation to innovate. Slower penetration of cleaner, more efficient technologies could result in greater levels of pollution, higher electricity prices, and a reduction in international competitiveness. Regulatory incentives could encourage adoption and deployment of innovative technologies of all kinds, inducting clean coal technologies. Such incentives must be designed to offset risks inherent in innovative technology and encourage cost-effective behavior. To evaluate innovative and conventional technologies equally, the incremental cost of risk (ICR) of adopting the innovative technology must be determined. Through the ICR, the magnitude of incentive required to make a utility (or nonutility) power generator equally motivated to use either conventional or innovative technologies can be derived. Two technology risks are examined: A construction risk, represented by a 15% cost overrun, and an operating risk, represented by a increased forced outage rate (decreased capacity factor). Different incentive mechanisms and measurement criteria are used to assess the effects of these risks on ratepayers and shareholders. In most cases, a regulatory incentive could offset the perceived risks while encouraging cost-effective behavior by both utility and nonutility power generators. Not only would the required incentive be recouped, but the revenue requirements would be less for the innovative technology; also, less environmental pollution would be generated. In the long term, ratepayers and society would benefit from innovative technologies.

McDermott, K.A. [Illinois Commerce Commission, Springfield, IL (United States); Bailey, K.A.; South, D.W. [Argonne National Lab., IL (United States). Environmental Assessment and Information Sciences Div.

1993-08-01T23:59:59.000Z

89

Further Characterization of New NiTi Wire and Rotary Endodontic ...  

Science Conference Proceedings (OSTI)

Presentation Title, Further Characterization of New NiTi Wire and Rotary ... Higher-resolution transmission electron microscopy examination of M-Wire used to...

90

Table 4.4 Crude Oil and Natural Gas Rotary Rigs in ...  

U.S. Energy Information Administration (EIA)

Table 4.4 Crude Oil and Natural Gas Rotary Rigs in Operation, 1949-2011 (Number of Rigs) Year: By Site : By Type: Total 1: Onshore

91

Study on Matching Strategies and Simulation of Hydro-mechanical Continuously Variable Transmission System of Tractor  

Science Conference Proceedings (OSTI)

In this paper, the engine output torque model and fuel consumption model are established based on engine test results. The engine rotary speed feature denotes the relationship between the engine rotary speed and the throttle opening when engine works ... Keywords: Tractor, Hydro-mechanical continuously variable transmission, Matching strategies, Simulation

Xu Liyou; Zhou Zhili; Cao Qingmei; Zhang Mingzhu

2010-05-01T23:59:59.000Z

92

Research for the Crane Boom Length Coefficient Considering the Tower Head Flexibility in Rotary Plane  

Science Conference Proceedings (OSTI)

When the crane boom length in rotary plane is determined, the traditional methods only consider support condition, non-uniform, boom end lateral displacement constraint effect of amplitude dragline and hoist rope tensile forces. Ignoring tower head elastic ... Keywords: Equivalent elastic support method, Rotary plane, Tower head flexibility, Non-conservative loading, Length coefficient

Zhang Guangyun; Lan Peng; Lu Nianli

2011-01-01T23:59:59.000Z

93

Skew And Twist Resistant Hydrodynamic Rotary Shaft Seal  

SciTech Connect

A hydrodynamically lubricated squeeze packing type rotary shaft seal suitable for lubricant retention and environmental exclusion which incorporates one or more resilient protuberances which and cooperate with the gland walls to hold the seal straight in its installation groove in unpressurized and low pressure lubricant retention applications thereby preventing skew-induced wear caused by impingement of abrasive contaminants present in the environment, and which also serve as radial bearings to prevent tipping of the seal within its installation gland. Compared to prior art, this invention provides a dramatic reduction of seal and shaft wear in abrasive environments and provides a significant increase in seal life.

Dietle, Lannie (Sugar Land, TX); Kalsi, Manmohan Singh (Houston, TX)

2000-03-14T23:59:59.000Z

94

System and method for cooling a superconducting rotary machine  

Science Conference Proceedings (OSTI)

A system for cooling a superconducting rotary machine includes a plurality of sealed siphon tubes disposed in balanced locations around a rotor adjacent to a superconducting coil. Each of the sealed siphon tubes includes a tubular body and a heat transfer medium disposed in the tubular body that undergoes a phase change during operation of the machine to extract heat from the superconducting coil. A siphon heat exchanger is thermally coupled to the siphon tubes for extracting heat from the siphon tubes during operation of the machine.

Ackermann, Robert Adolf (Schenectady, NY); Laskaris, Evangelos Trifon (Schenectady, NY); Huang, Xianrui (Clifton Park, NY); Bray, James William (Niskayuna, NY)

2011-08-09T23:59:59.000Z

95

DEVELOPMENT OF A ROTARY MICROFILTER FOR RADIOACTIVE WASTE APPLICATIONS  

Science Conference Proceedings (OSTI)

The processing rate of Savannah River Site (SRS) high-level waste decontamination processes are limited by the flow rate of the solid-liquid separation. The baseline process, using a 0.1 micron cross-flow filter, produces {approx}0.02 gpm/sq. ft. of filtrate under expected operating conditions. Savannah River National Laboratory (SRNL) demonstrated significantly higher filter flux for actual waste samples using a small-scale rotary filter. With funding from the U. S. Department of Energy Office of Cleanup Technology, SRNL personnel are evaluating and developing the rotary microfilter for radioactive service at SRS. The authors improved the design for the disks and filter unit to make them suitable for high-level radioactive service. They procured two units using the new design, tested them with simulated SRS wastes, and evaluated the operation of the units. Work to date provides the following conclusions and program status: (1) The authors modified the design of the filter disks to remove epoxy and Ryton{reg_sign}. The new design includes welding both stainless steel and ceramic coated stainless steel filter media to a stainless steel support plate. The welded disks were tested in the full-scale unit. They showed good reliability and met filtrate quality requirements. (2) The authors modified the design of the unit, making installation and removal easier. The new design uses a modular, one-piece filter stack that is removed simply by disassembly of a flange on the upper (inlet) side of the filter housing. All seals and rotary unions are contained within the removable stack. (3) While it is extremely difficult to predict the life of the seal, the vendor representative indicates a minimum of one year in present service conditions is reasonable. Changing the seal face material from silicon-carbide to a graphite-impregnated silicon-carbide is expected to double the life of the seal. Replacement of the current seal with an air seal could increase the lifetime to 5 years and is undergoing testing in the current work. (4) The bottom bushing showed wear due to a misalignment during the manufacture of the filter tank. Replacing the graphite bushing with a more wear resistant material such as a carbide material will increase the lifetime of the bushing. This replacement requires a more wear resistant part or coating to prevent excessive wear of the shaft. The authors are currently conducting testing with the more wear resistant bushing. (5) The project team plans to use the rotary microfilter as a filter in advance of an ion exchange process under development for potential deployment in SRS waste tank risers.

Poirier, M; David Herman, D; Samuel Fink, S

2008-02-25T23:59:59.000Z

96

Comparison of residence time models for cascading rotary dryers  

SciTech Connect

The predictions of the models of Matchett and Baker (1988), Saeman and Mitchell (1954) and Friedman and Marshall (1949) for the solids residence time in rotary dryers have been compared with both pilot-scale and industrial-scale data. A countercurrent pilot-scale dryer of 0.2m diameter and 2m long has been used with air velocities up to 1.5 m to measure the residence times of sorghum grain. The average discrepancy for the solids residence time between the predictions and the experiments that were carried out in the pilot-scale rotary dryer is {minus}10.4%. Compared with the models of Friedman and Marshall (1949) and Saeman and Mitchell (1954) for the pilot-scale data obtained here, the Matchett and Baker model is more satisfactory for predicting the solids residence time in this pilot-scale dryer. It has also been found that the model of Matchett and Baker describes the industrial data of Saeman and Mitchell (1954) than the correlation of Friedman and Marshall (1949).

Cao, W.F.; Langrish, T.A.G. [Univ. of Sydney, New South Wales (Australia). Dept. of Chemical Engineering

1999-04-01T23:59:59.000Z

97

Wear compensating seal means for rotary piston coal feeder  

SciTech Connect

The present invention is directed to a wear compensating seal arrangement for use in a rotary piston feeder utilized for feeding pulverized coal into a gasifier operating at relatively high pressures and elevated temperatures. The rotary piston feeder has a circular casing with a coal loading opening therein diametrically opposed from a coal discharge and contains a rotatable disoidal rotor having a cylinder in which a reciprocatable piston is disposed. The reciprocation of the piston within the cylinder is provided by a stationary conjugate cam whereby pulverized coal from a coal hopper at atmospheric pressure can be introduced into the cylinder and then discharged therefrom into the high pressure gasifier while maintaining minimal losses of producer gas and the expenditure of minimal energy which would detract from the efficiency of the gasification. The seal arrangement of the present invention is disposed between the rotor and the casing about the coal discharge and prevents the high pressure gases from within the gasifier from escaping between these relatively movable parts during operation of the coal feeder. The seal utilizes a primary seal in contact with the rotor and a secondary seal supporting the primary seal. The primary seal is continuously urged towards the rotor by springs and the high pressure producer gas.

Gencsoy, Hasan T. (Morgantown, WV); Gardner, John F. (Morgantown, WV)

1979-01-01T23:59:59.000Z

98

Mechanical and Hydraulic Press Brakes  

Science Conference Proceedings (OSTI)

...drives, with mechanical linkages from motor to flywheel to clutch to gears to crankshaft to crank arm to ram (Fig. 4). They all have one thing in common: a crankshaft action that converts rotary motion into straight, reciprocating motion (Fig. 5). During a stroke cycle, the crank arm drives the ram down...

99

Say it with systems: expanding Kodu's expressive power through gender-inclusive mechanics  

Science Conference Proceedings (OSTI)

While game mechanics are a primary focus in game design and game studies, they have been little discussed in the context of introductory game creation and programming environments. But game mechanics are central here as well, with different tools supporting ... Keywords: Kodu, children, computer science education, game design, game mechanics, gender, motivation, programming, programming environments

Teale Fristoe; Jill Denner; Matt MacLaurin; Michael Mateas; Noah Wardrip-Fruin

2011-06-01T23:59:59.000Z

100

Development of a Low-Cost Rotary Steerable Drilling System  

DOE Green Energy (OSTI)

The project had the goal to develop and commercialize a low-cost rotary steerable system (LCRSS) capable of operating downhole at conventional pressures and temperatures to reduce operating costs by a minimum of 50% and lost-in-hole charges by at least 50% over the currently offered systems. The LCRSS system developed under this project does reduce operating costs by 55% and lost-in-hole charges by at least 50%. The developed product is not commercializable in its current form. The overall objective was to develop and commercialize a low cost rotary steerable system (LCRSS) capable of operating downhole at conventional pressures and temperatures (20,000 psi/150 C) while reducing the operating costs by 50% and the lost-in-hole charges by 50% over the currently available systems. The proposed reduction in costs were to be realized through the significant reduction in tool complexity, a corresponding increase in tool reliability as expressed in the mean-time between failure (MTBF), and a reduction in the time and costs required to service tools after each field operation. Ultimately, the LCRSS system was to be capable of drilling 7 7/8 in. to 9 5/8 in. borehole diameters. The project was divided into three Phases, of which Phases I & II were previously completed and reported on, and are part of the case file. Therefore, the previously reported information is not repeated herein. Phase III included the fabrication of two field ready prototypes that were to be subjected to a series of drilling tests at GTI Catoosa, DOE RMOTC, and at customer partnering wells, if possible, as appropriate in the timing of the field test objectives to fully exercise all elements of the LCRSS. These tests were conducted in an iterative process based on a performance/reliability improvement cycle with the goal of demonstrating the system met all aspects required for commercial viability. These tests were conducted to achieve continuous runs of 100+ hours with well trajectories that fully exercised the tool's build/turn/drop/hold target capabilities and its higher end ratings for bit weight, torque and rotary speed. The tool teardowns were rigorously analyzed at the conclusion of each field run to assess component wear rates and to fully document any detrimental behavior(s) observed.

Roney Nazarian

2012-01-31T23:59:59.000Z

Note: This page contains sample records for the topic "rotary mechanical power" 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

Microfabricated microengine for use as a mechanical drive and power source in the microdomain and fabrication process  

DOE Patents (OSTI)

A microengine uses two synchronized linear actuators as a power source and converts oscillatory motion from the actuators into rotational motion via direct linkage connection to an output gear or wheel. The microengine provides output in the form of a continuously rotating output gear that is capable of delivering drive torque to a micromechanism. The microengine can be operated at varying speeds and its motion can be reversed. Linear actuators are synchronized in order to provide linear oscillatory motion to the linkage means in the X and Y directions according to a desired position, rotational direction and speed of said mechanical output means. The output gear has gear teeth on its outer perimeter for directly contacting a micromechanism requiring mechanical power. The gear is retained by a retaining means which allows said gear to rotate freely. The microengine is microfabricated of polysilicon on one wafer using surface micromachining batch fabrication.

Garcia, E.J.; Sniegowski, J.J.

1994-12-31T23:59:59.000Z

102

High pressure rotary piston coal feeder for coal gasification applications  

DOE Patents (OSTI)

The subject development is directed to an apparatus for feeding pulverized coal into a coal gasifier operating at relatively high pressures and elevated temperatures. This apparatus is a rotary piston feeder which comprises a circular casing having a coal loading opening therein diametrically opposed from a coal discharge and contains a rotatable discoid rotor having a cylinder in which a reciprocateable piston is disposed. The reciprocation of the piston within the cylinder is provided by a stationary conjugate cam arrangement whereby the pulverized coal from a coal hopper at atmospheric pressure can be introduced into the cylinder cavity and then discharged therefrom into the high-pressure gasifier without the loss of high pressure gases from within the latter.

Gencsoy, Hasan T. (Morgantown, WV)

1977-05-24T23:59:59.000Z

103

Rim for rotary inertial energy storage device and method  

DOE Patents (OSTI)

The present invention is directed to an improved rim or a high-performance rotary inertial energy storage device (flywheel). The improved rim is fabricated from resin impregnated filamentary material which is circumferentially wound in a side-by-side relationship to form a plurality of discretely and sequentially formed concentric layers of filamentary material that are bound together in a resin matrix. The improved rim is provided by prestressing the filamentary material in each successive layer to a prescribed tension loading in accordance with a predetermined schedule during the winding thereof and then curing the resin in each layer prior to forming the next layer for providing a prestress distribution within the rim to effect a self-equilibrating compressive prestress within the windings which counterbalances the transverse or radial tensile stresses generated during rotation of the rim for inhibiting deleterious delamination problems.

Knight, Jr., Charles E. (Knoxville, TN); Pollard, Roy E. (Powell, TN)

1980-01-01T23:59:59.000Z

104

TESTING OF THE SECOND GENERATION SPINTEK ROTARY FILTER -11357  

SciTech Connect

The SpinTek rotary microfilter has been developed under the Department of Energy (DOE) Office of Environmental Management (EM) for the purpose of deployment in radioactive service in the DOE complex. The unit that was fabricated and tested is the second generation of the filter that incorporates recommended improvements from previous testing. The completion of this test satisfied a key milestone for the EM technology development program and technology readiness for deployment by Savannah River Remediation in the Small Column Ion Exchange and Sludge Washing processes at the Savannah River Site (SRS). The Savannah River National Laboratory (SRNL) contracted SpinTek Filtration to fabricate a full scale 25 disk rotary filter and perform a 1000 hour endurance test with a simulated SRS sludge. Over 1500 hours of operation have been completed with the filter. SpinTek Filtration fabricated a prototypic 25 disk rotary filter including updates to manufacturing tolerances, an updated design to the rotary joint, improved cooling to the bottom journal, decreases in disk and filter shaft hydraulic resistances. The filter disks were fabricated with 0.5 {micro} pore size, sintered-metal filter media manufactured by Pall Corporation (M050). After fabrication was complete, the filter passed acceptance tests demonstrating rejection of solids and clean water flux with a 50% improvement over the previous filters. Once the acceptance test was complete, a 1000 hour endurance test was initiated simulating a sludge washing process. The test used a simulated SRS Sludge Batch 6 recipe. The insoluble solids started at 5 wt% and were raised to 10 and 15 wt% insoluble solids to simulate the concentration of a large volume tank. The filter system was automated and set up for 24 hour unattended operation. To facilitate this, process control logic was written to operate the filter. During the development it was demonstrated that the method of starting and stopping the filter can affect the build up of filter cake on the disks and therefore the performance of the filter. The filter performed well with the simulant. Very little drop in production was noticed between the 5 and 10 wt% insoluble solids feed. Increasing to 15 wt% had a more pronounced impact due to the rheology of the feed. Acid cleaning was used to clean the filter disks in-situ and restore filtration rate to almost 90% of the initial clean disk rate. Eighty liters of 0.2 M nitric acid in conjunction with water rinses were used to clean the filter in less than 2 hours. Filter testing was completed after 1000 hours of operation were performed on the final filter assembly configuration. The total run time for the testing was over 1500 hours. At the end of the test, the sludge washing was performed successfully from approximately 5.6 M to less than 1 M sodium.

Herman, D.; Poirier, M.; Fowley, M.; Keefer, M.; Huff, T.

2011-02-02T23:59:59.000Z

105

Experimental Analysis of Algorithms for Bilateral-Contract Clearing Mechanisms Arising in Deregulated Power Industry  

Science Conference Proceedings (OSTI)

We consider the bilateral contract satisfaction problem arising from electrical power networks due to the proposed deregulation of the electric utility industry in the USA. Given a network and a (multi)set of pairs of vertices (contracts) with associated ...

Chris Barrett; Doug Cook; Gregory Hicks; Vance Faber; Achla Marathe; Madhav V. Marathe; Aravind Srinivasan; Yoram J. Sussmann; Heidi Thornquist

2001-08-01T23:59:59.000Z

106

Exploitation of biogas power plantClean Development Mechanism project, Vizelj, Serbia  

Science Conference Proceedings (OSTI)

This case study of biogas power plant is designed in accordance with the existing energy policy that recognizes producers of energy from renewable sources as producers with privileged status and guarantees the purchase of energy at subsidized prices. The investor company revised its own energy policy and aligned it with the priorities of sustainable energypolicy of Serbia. The paper presents an analysis of biogas power plant output (electrical and thermal energy)

Mirjana Goluin; Sinia Dodi?; Damjan Vu?urovi?; Aleksandar Ostoji?; Larisa Jovanovi?

2011-01-01T23:59:59.000Z

107

U.S. Offshore Crude Oil and Natural Gas Rotary Rigs in Operation ...  

U.S. Energy Information Administration (EIA)

U.S. Offshore Crude Oil and Natural Gas Rotary Rigs in Operation (Number of Elements) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec; 1973: 99: 89: 90: 79: 72 ...

108

Modeling and simulation of two-leaf semi-rotary VAWT  

Science Conference Proceedings (OSTI)

In this paper, according to the structural characteristics of two-leaf semi-rotary VAWT (vertical axis wind turbine), the microelement method and the coordinate system rotation method are used to establish the mathematical model of wind turbine and, ...

Qian Zhang; Haifeng Chen; Binbin Wang

2010-09-01T23:59:59.000Z

109

Bias in hard disk drive rotary actuator pivot bearings: measurements and lubrication phenomena  

Science Conference Proceedings (OSTI)

Bias in disk drive rotary actuator bearings exhibits complex behavior related to the history of the actuator movement. This paper investigates the hysteresis component of bias present after seeks. Measurements of bias during full stroke actuator movements ...

Daniel Helmick; William Messner; C. Fred Higgs, III

2007-04-01T23:59:59.000Z

110

Generation of Optimal Unit Distance Codes for Rotary Encoders through Simulated Evolution  

Science Conference Proceedings (OSTI)

An evolutionary algorithm is used to generate unit distance codes for absolute rotary encoders. The target is to obtain a code suitable for disk size reduction, or for resolution increase, thus overcoming the limitations of conventional Gray codes. Obtained ...

Stefano Gregori; Roberto Rossi; Guido Torelli; Valentino Liberali

2001-04-01T23:59:59.000Z

111

U.S. Offshore Crude Oil and Natural Gas Rotary Rigs in Operation ...  

U.S. Energy Information Administration (EIA)

U.S. Offshore Crude Oil and Natural Gas Rotary Rigs in Operation (Number of Elements) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 ...

112

GA 200-500 (VSD): Oil-injected rotary screw compressors, 200 ...  

U.S. Energy Information Administration (EIA)

GA 200-500 (VSD): Oil-injected rotary screw compressors, 200-500 kW / 268-670 hp.,Kunshan CompAirs Machinery Plant Co.,Ltd is the leading air ...

113

GA 30+-90 / GA 37-90 VSD: Oil-injected rotary screw ...  

U.S. Energy Information Administration (EIA)

GA 30+-90 / GA 37-90 VSD: Oil-injected rotary screw compressors, 30-90 kW / 40-125 hp,Kunshan CompAirs Machinery Plant Co.,Ltd is the leading air ...

114

GAe11-30 / GAe 18-30 VSD: Oil-injected rotary screw ...  

U.S. Energy Information Administration (EIA)

GAe11-30 / GAe 18-30 VSD: Oil-injected rotary screw compressors, 11-30 kW / 15-40 hp,Kunshan CompAirs Machinery Plant Co.,Ltd is the leading air ...

115

GA 11+-30/GA 15-30 VSD: Oil-injected rotary screw compressors ...  

U.S. Energy Information Administration (EIA)

GA 11+-30/GA 15-30 VSD: Oil-injected rotary screw compressors, 11-30 kW / 15-40 hp,Kunshan CompAirs Machinery Plant Co.,Ltd is the leading air ...

116

GA 90+-160+ / GA 110-160 VSD: Oil-injected rotary screw ...  

U.S. Energy Information Administration (EIA)

GA 90+-160+ / GA 110-160 VSD: Oil-injected rotary screw compressors, 90-160 kW / 125-200 hp.,Kunshan CompAirs Machinery Plant Co.,Ltd is the leading ...

117

U.S. Crude Oil and Natural Gas Rotary Rigs in Operation (Number of ...  

U.S. Energy Information Administration (EIA)

U.S. Crude Oil and Natural Gas Rotary Rigs in Operation (Number of Elements) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec; 1973: 1,219: 1,126: 1,049: 993 ...

118

Analysis of the working process and mechanical losses in a Stirling engine for a solar power unit  

SciTech Connect

In this paper a second level mathematical model for the computational simulation of the working process of a 1-kW Stirling engine has been used and the results obtained are presented. The internal circuit of the engine in the calculation scheme was divided into five chambers, namely, the expansion space, heater, regenerator, cooler and the compression space, and the governing system of ordinary differential equations for the energy and mass conservation were solved in each chamber by Euler`s method. In addition, mechanical losses in the construction of the engine have been determined and the computational results show that the mechanical losses for this particular design of the Stirling engine may be up to 50% of the indicated power of the engine.

Makhkamov, K.K. [Uzbek Academy of Sciences, Tashkent (Uzbekistan). Physical and Technical Inst.; Ingham, D.B. [Univ. of Leeds (United Kingdom). Dept. of Applied Mathematics

1999-05-01T23:59:59.000Z

119

Sway control method and system for rotary cranes  

DOE Patents (OSTI)

Methods and apparatuses for reducing the oscillatory motion of rotary crane payloads during operator-commanded or computer-controlled maneuvers. An Input-shaping filter receives input signals from multiple operator input devices and converts them into output signals readable by the crane controller to dampen the payload tangential and radial sway associated with rotation of the jib. The input signals are characterized by a hub rotation trajectory .gamma.(t), which includes a jib angular acceleration .gamma., a trolley acceleration x, and a load-line length velocity L. The system state variables are characterized by a tangential rotation angle .theta.(t) and a radial rotation angle .phi.(t) of the load-line. The coupled equations of motion governing the filter are non-linear and configuration-dependent. In one embodiment, a filter is provided between the operator and the crane for filtering undesired frequencies from the angular .gamma. and trolley x velocities to suppress payload oscillation. In another embodiment, crane commands are computer generated and controlled to suppress vibration of the payload using a postulated asymmetrical shape for the acceleration profiles of the jib, which profiles are uniquely determined by a set of parameters (including the acceleration pulse amplitude and the duration and coast time between pulses), or a dynamic programming approach.

Robinett, Rush D. (Tijeras, NM); Parker, Gordon G. (Houghton, MI); Feddema, John T. (Albuquerque, NM); Dohrmann, Clark R. (Albuquerque, NM); Petterson, Ben J. (Albuquerque, NM)

1999-01-01T23:59:59.000Z

120

Coal desulfurization in a rotary kiln combustor. Final report, March 15, 1990--July 31, 1991  

Science Conference Proceedings (OSTI)

The purpose of this project was to demonstrate the combustion of coal and coal wastes in a rotary kiln reactor with limestone addition for sulfur control. The rationale for the project was the perception that rotary systems could bring several advantages to combustion of these fuels, and may thus offer an alternative to fluid-bed boilers. Towards this end, an existing wood pyrolysis kiln (the Humphrey Charcoal kiln) was to be suitably refurbished and retrofitted with a specially designed version of a patented air distributor provided by Universal Energy, Inc. (UEI). As the project progressed beyond the initial stages, a number of issues were raised regarding the feasibility and the possible advantages of burning coals in a rotary kiln combustor and, in particular, the suitability of the Humphrey Charcoal kiln as a combustor. Instead, an opportunity arose to conduct combustion tests in the PEDCO Rotary Cascading-Bed Boiler (RCBB) commercial demonstration unit at the North American Rayon CO. (NARCO) in Elizabethton, TN. The tests focused on anthracite culm and had two objectives: (a) determine the feasibility of burning anthracite culms in a rotary kiln boiler and (b) obtain input for any further work involving the Humphrey Charcoal kiln combustor. A number of tests were conducted at the PEDCO unit. The last one was conducted on anthracite culm procured directly from the feed bin of a commercial circulating fluid-bed boiler. The results were disappointing; it was difficult to maintain sustained combustion even when large quantities of supplemental fuel were used. Combustion efficiency was poor, around 60 percent. The results suggest that the rotary kiln boiler, as designed, is ill-suited with respect to low-grade, hard to burn solid fuels, such as anthracite culm. Indeed, data from combustion of bituminous coal in the PEDCO unit suggest that with respect to coal in general, the rotary kiln boiler appears inferior to the circulating fluid bed boiler.

Cobb, J.T. Jr.

1992-09-11T23:59:59.000Z

Note: This page contains sample records for the topic "rotary mechanical power" 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

High-temperature phase transition in a plasma and the mechanism of powerful solar flares  

E-Print Network (OSTI)

It is shown that the high- temperature phase transition in a plasma gives the mechanism of transition from the highly conductive state to the highly resistive state of a plasma in the `electric circuit' model of solar flares which was first introduced by H.Alfven and P.Carlqvist in 1967. With this addendum, the modern version of the electric circuit model can explain both the fast dissipation of energy and the acceleration of particles in a solar flare.

Fedor V. Prigara

2006-05-04T23:59:59.000Z

122

Development of a cable reel development system using a rotary joint for kilometer lengths of two-fiber multi-mode fiber optic cable  

SciTech Connect

Brookhaven National Laboratory (BNL) recently developed a two-component system for use during remote inspections. The system consists of a mobile unit with television cameras and other equipment and a stationary base station. A variety of signals must be continually transmitted between the two system components as the mobile unit is moved from the location to another. Two channels of broadband (10MHz) NTSC video are transmitted from the mobile unit to the base station, and a bi-directional ``talk set`` provides audio communication between personnel at each location. In addition, several channels of RS-232 are required to support present and future instruments used at the mobile unit and controlled by personnel at the base station. Brookhaven developed a mobile unit which communicated with a base station over a 2-fiber multimode fiber optic cable. One of the design requirements was maintaining constant communication with the base station during the time the mobile unit was moved about. To provide uninterrupted communications, deployment of the 1-km long fiber optic cable was initially performed with a ``spinning reel`` mechanism. The spinning reel mechanism proved to be mechanically unsuitable, and so the cable deployment mechanism was redesigned to spool the cable off the reel. The requirement for uninterrupted communications required a two-channel fiber optic rotary joint in the design. Incorporation of the rotary joint into the design is described, and appropriate reference material is included.

Curtiss, J.A.; Jahelka, J.R.

1995-08-11T23:59:59.000Z

123

Microsoft PowerPoint - Wayne_Shirley_Decoupling_Mechanics_and_Issues.ppt [Compatibility Mode]  

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

Decoupling: Decoupling: Mechanics and Issues Presentation to the New Mexico Public Regulation Commission Energy Efficiency Incentives Workshop July 16-17, 2008 The Regulatory Assistance Project Presented by Wayne Shirley The Regulatory Assistance Project 110 B Water St. Hallowell, Maine USA 04347 Tel: 207.623.8393 50 State Street, Suite 3 Montpelier, Vermont USA 05602 Tel: 802.223.8199 27 Penny Lane Cedar Crest, New Mexico USA 87008 Tel: 505.286.4486 Fax: 207.623.8369 Fax: 802.223.8172 E-Fax: 773.347.1512 Website: http://www.raponline.org Context for Decoupling All forms of regulation are incentive regulation Utilities can be expected to respond to the incentives they are given - Direct relationship to profitability - Management pay structure If incentives are poorly designed, expect

124

Rotary seal with enhanced lubrication and contaminant flushing  

DOE Patents (OSTI)

A resilient, ring shaped interference-type hydrodynamic rotary seal having waves on the lubricant side which provide increased film thickness and flushing action by creating contact pressure induced angulated restrictions formed by abrupt restrictive diverters. The angulated restrictions are defined by projecting ridges, corners at the trailing edge of the waves, or simply by use of a converging shape at the trailing edge of the waves which is more abrupt than the gently converging hydrodynamic inlet shape at the leading edge of the waves. The abrupt restrictive diverter performs two functions; a restricting function and a diverting function. The angulated restrictions cause a local film thickness restriction which produces a damming effect preventing a portion of the lubricant from leaking out of the dynamic sealing interface at the trailing edge of the wave, and results in a much thicker lubricant film thickness under the waves. This contributes to more film thickness in the remainder of the dynamic sealing interface toward the environment because film thickness tends to decay gradually rather than abruptly due to the relative stiffness of the seal material. Because of the angle of the abrupt restrictive diverter relative to the relative rotation direction, in conjunction with the restriction or damming effect, a strong diverting action is produced which pumps lubricant across the dynamic sealing interface toward the environment. The lubricant diversion is caused by the component of the rotational velocity tangent to the abrupt restrictive diverter. The component of rotational velocity normal to the abrupt restrictive diverter causes a portion of the lubricant film to be pumped past the abrupt restrictive diverter, thereby assuring adequate lubrication thereof.

Dietle, Lannie L. (Sugar Land, TX)

2000-01-01T23:59:59.000Z

125

ROTARY FILTER FINES TESTING FOR SMALL COLUMN ION EXCHANGE  

SciTech Connect

SRNL was requested to quantify the amount of 'fines passage' through the 0.5 micron membranes currently used for the rotary microfilter (RMF). Testing was also completed to determine if there is any additional benefit to utilizing a 0.1 micron filter to reduce the amount of fines that could pass through the filter. Quantifying of the amount of fines that passed through the two sets of membranes that were tested was accomplished by analyzing the filtrate by Inductively Coupled Plasma Atomic Emission Spectrometry (ICP-AES) for titanium. Even with preparations to isolate the titanium, all samples returned results of less than the instrument's detection limit of 0.184 mg/L. Test results show that the 0.5 micron filters produced a significantly higher flux while showing a negligible difference in filtrate clarity measured by turbidity. The first targeted deployment of the RMF is with the Small Column Ion Exchange (SCIX) at the Savannah River Site (SRS). SCIX uses crystalline silicotitanate (CST) to sorb cesium to decontaminate a clarified salt solution. The passage of fine particles through the filter membranes in sufficient quantities has the potential to impact the downstream facilities. To determine the amount of fines passage, a contract was established with SpinTek Filtration to operate a 3-disk pilot scale unit with prototypic filter disk and various feeds and two different filter disk membranes. SpinTek evaluated a set of the baseline 0.5 micron filter disks as well as a set of 0.1 micron filter disks to determine the amount of fine particles that would pass the membrane and to determine the flux each set produced. The membrane on both disk sets is manufactured by the Pall Corporation (PMM 050). Each set of disks was run with three feed combinations: prototypically ground CST, CST plus monosodium titanate (MST), and CST, MST, plus Sludge Batch 6 (SB6) simulant. Throughout the testing, samples of the filtrate were collected, measured for turbidity, and sent back to SRNL for analysis to quantify the amount of fines that passed through the membrane. It should be noted that even though ground CST was tested, it will be transferred to the Defense Waste Processing Facility (DWPF) feed tank and is not expected to require filtration.

Herman, D.

2011-08-03T23:59:59.000Z

126

Burning state recognition of rotary kiln using ELMs with heterogeneous features  

Science Conference Proceedings (OSTI)

Image based burning state recognition plays an important role in sintering process control of rotary kiln. Although many efforts on dealing with this problem have been made over the past years, the recognition performance cannot be satisfactory due to ... Keywords: Burning state, ELM, Eigen-flame image, Latent semantic analysis, Multivariate image analysis

Weitao Li; Dianhui Wang; Tianyou Chai

2013-02-01T23:59:59.000Z

127

Radioactive air emissions program notice of construction, rotary mode core-sampling truck and exhauster  

SciTech Connect

Efforts have been ongoing to obtain core samples from the contents of each of the Hanford Site`s 149 single-shell tanks (SSTs). The SSTs contain various amounts and combinations of liquid, sludge, and saltcake. Existing sampling equipment is unable to retrieve samples of hardened waste within established tank safety restrictions (particularly limits on temperature). A new rotary mode core-sampling system has been designed to sample tanks containing hardened wastes. The prominent feature of this new system is the use of a nitrogen gas purge. The nitrogen gas purge will cool the drill bit and prevent cross contamination of different waste layers in the tank. The nitrogen gas purge will also allow more complete sample recovery, by clearing cuttings that might otherwise obstruct the sampler or drill bit. Nitrogen was chosen over other compressed gases for its inherent safety. Many of the tanks to be sampled with the rotary mode core-sampling system are not actively ventilated, these tanks are operated at atmospheric pressure with passive (breather) high-efficiency particulate air (HEPA) filters. Unless a ventilation system of the proper capacity is used, addition of the nitrogen purge gas to SSTs will cause the tanks to pressurize. Additionally, the use of the rotary mode core-sampling system will generate aerosols and dusts potentially containing radioactive particles in the tank vapor space. Consequently, an exhauster will be required during operation of the rotary mode core-sampling system on SSTs to prevent tank pressurization and to control emissions. This exhauster will be required to be moved from tank farm to tank farm with the rotary mode core-sampling system.

Not Available

1993-05-01T23:59:59.000Z

128

Integrating Coal Gasification into a Rotary Kiln Electric Furnace Plant  

Science Conference Proceedings (OSTI)

Coal gasification is a potential alternative to conventional coal or natural gas- fired power plants ... Fundamentals of Spark-Plasma Sintering: Net-Shaping and Size Effects ... Investigation on a Microwave High-Temperature Air Heat Exchanger.

129

Traffic scheduling mechanism based on graph theory for Power Saving mode of IEEE 802.11 distributed coordinator function  

Science Conference Proceedings (OSTI)

In IEEE 802.11 Power Saving (PS) mode specified for Independent Basic Service Set (IBSS), mobile stations announce their pending data packets within Announcement Traffic Indication Message (ATIM) window immediately after the reception ... Keywords: IEEE 80211, MAC protocol, ad hoc networks, distributed coordinator, energy efficiency, graph theory, medium access control, power saving, power-efficient, time synchronisation function, traffic scheduling

M. H. Ye; C. T. Lau; A. B. Premkumar

2009-03-01T23:59:59.000Z

130

Comparative analysis of core drilling and rotary drilling in volcanic terrane  

DOE Green Energy (OSTI)

Initially, the goal of this report is to compare and contrast penetration rates of rotary-mud drilling and core drilling in young volcanic terranes. It is widely recognized that areas containing an abundance of recent volcanic rocks are excellent targets for geothermal resources. Exploration programs depend heavily upon reliable subsurface information, because surface geophysical methods may be ineffective, inconclusive, or both. Past exploration drilling programs have mainly relied upon rotary-mud rigs for virtually all drilling activity. Core-drilling became popular several years ago, because it could deal effectively with two major problems encountered in young volcanic terranes: very hard, abrasive rock and extreme difficulty in controlling loss of circulation. In addition to overcoming these difficulties, core-drilling produced subsurface samples (core) that defined lithostratigraphy, structure and fractures far better than drill-chips. It seemed that the only negative aspect of core drilling was cost. The cost-per-foot may be two to three times higher than an ''initial quote'' for rotary drilling. In addition, penetration rates for comparable rock-types are often much lower for coring operations. This report also seeks to identify the extent of wireline core drilling (core-drilling using wireline retrieval) as a geothermal exploration tool. 25 refs., 21 figs., 13 tabs.

Flynn, T.; Trexler, D.T.; Wallace, R.H. Jr. (ed.)

1987-04-01T23:59:59.000Z

131

Demonstration of a rotary separator for two-phase brine and steam flows. Final report  

DOE Green Energy (OSTI)

The application of a two-phase rotary separator for geothermal energy conversion was demonstrated. Laboratory tests were conducted with clean water and steam at Biphase Energy Systems, Inc., Santa Monica, California. Field tests were conducted at the Union Oil Co., Tow No. 1 wellsite near Brawley, California. The system tested consisted of the major components of a total flow rotary separator/turbine conversion system. A nozzle converted the brine wellhead enthalpy to two-phase flow kinetic by impinging the nozzle flow tangentially on the inside of the separator. The flow was therefore subjected to the high centrifugal force field in the separator. This caused the liquid phase to collect as a film on the separator drum with very little energy loss. The steam was allowed to flow radially inward to the central steam discharge. Potable water was obtained by condensing the steam exhaust. The brine collection system converted the liquid film kinetic energy to static pressure head. The system was operated for 116 hours in a high salinity environment (115,000 ppM TDS). The system operated properly with no adverse effects from solids precipitation or scale buildup. The rotary separator produced separate flows of pure liquid and steam of greater than 99.5% quality.

Cerini, D.J.

1978-01-01T23:59:59.000Z

132

Modeling of the solids transportation within an industrial rotary dryer: A simple model  

SciTech Connect

To better understand the underlying phenomena taking place in an industrial rotary dryer and to determine the optimum operating conditions, a simulator in which the solids transportation, the gas flow, and the heat and mass transfer are modeled is currently being developed. This paper describes the use of interactive perfect mixers in series to model the solids transportation within an industrial rotary dryer, on the basis of an experimental residence time distribution curve (RTD). Two simple models are proposed: a series of perfect well-mixed interacting tanks and a modified Cholette-Cloutier model. The first model is not able to account for the nonideal behavior of the solids transportation in the rotary dryer. To account for the characteristic extended tail of the RTD curves observed in industrial dryers, in a second model, the solid phase is divided between an active and a dead zone. This model, with 36 cells and 25% of the volume occupied by the dead zones, modeled very well the industrial RTD curve. In addition, the model produces bed depth and axial velocity profiles that are consistent with those reported in the literature.

Duchesne, C.; Thibault, J.; Bazin, C. [Laval Univ., Sainte-Foy, Quebec (Canada)] [Laval Univ., Sainte-Foy, Quebec (Canada)

1996-07-01T23:59:59.000Z

133

Test of a rotary separator turbine with separated feed configuration  

DOE Green Energy (OSTI)

A description of the test system used during the Endurance Tests is presented. Results of the first series of performance tests (10/81 to 10/82), and of the Endurance Test, are briefly discussed in this section. The rationale for the RST power system is presented. Test system changes, and a summary of the test system shakedown are presented. The Upgrade Test series consists of three short (2-3 day) test periods. Test system operations, as well as immediate conclusions and system modifications, are presented. Results and conclusions are presented.

Not Available

1985-03-14T23:59:59.000Z

134

Microelectronically fabricated Li Co O 2 ? Si O 2 /polycrystalline-silicon power cells planarized by chemical mechanical polishing  

Science Conference Proceedings (OSTI)

Monolithic integration of different electronic circuit elements onto a single chip is beneficial for the purpose of reducing overall system cost as well as improving performance and reliability. Integrating a power unit onto a silicon chip requires the implementation of a thin-film solid-state battery that is compatible with existing silicon integrated circuit technology in terms of manufacturing methods

Nava Ariel; David M. Isaacson; Eugene A. Fitzgerald

2006-01-01T23:59:59.000Z

135

Experimental studies of heat and mass exchange in parallel-passage rotary desiccant dehumidifiers for solar cooling applications  

DOE Green Energy (OSTI)

This report presents results of work done to experimentally characterize the performance of rotary desiccant dehumidifiers and to develop and validate analytical methods for evaluating their performance in air-conditioning systems. A facility, the Cyclic Test Facility, and a test-and-analysis procedure were developed to evaluate the performance of the rotary dehumidifiers. Experiments were performed to develop a basic understanding of the simultaneous heat- and mass-transfer processes in the dehumidifiers. Two test articles were tested under cyclic operation to characterize their performance. Detailed accounts of the Cyclic Test Facility, its hardware and instrumentation, the two test articles, and data reduction and analysis methods are provided. The data provide an engineering data base for evaluating rotary desiccant dehumidifiers for cooling applications. 46 refs., 26 figs., 3 tabs.

Bharathan, D.; Parsons, J.M.; Maclaine-cross, I.L.

1987-11-01T23:59:59.000Z

136

Obtaining pressures in the 10?5 Pa range with oil?sealed rotary vacuum pumps  

Science Conference Proceedings (OSTI)

Trapped oil?sealed rotary pumps are usually considered capable of ultimate pressures no lower than about 10?3 Pa. Experiments are described which confirm that most of this residual gas originates from air dissolved in the pump oil. Replacement of the air with a less soluble gas (helium) or an easily trapped gas (carbon dioxide) is shown to give a useful reduction in ultimate pressure and to reduce the oxygen partial pressure to essentially zero. Operation with completely degassed oil is shown to give ultimate pressures in the 10?5 Pa range. The design of pumps based on these principles is discussed.

B. R. F. Kendall

1982-01-01T23:59:59.000Z

137

On the use of the parabolic concentration profile assumption for a rotary desiccant dehumidifier  

SciTech Connect

The current work describes a model for a desiccant dehumidifier which uses a parabolic concentration profile assumption to model the diffusion resistance inside the desiccant particle. The relative merits of the parabolic concentration profile model compared with widely utilized rotary desiccant wheel models are discussed. The periodic steady-state parabolic concentration profile model developed is efficient and can accommodate a variety of materials. These features make it an excellent tool for design studies requiring repetitive desiccant wheel simulations. A quartic concentration profile assumption was also investigated which yielded a 2.8 percent average improvement in prediction error over the parabolic model.

Chant, E.E. [Univ. of Turabo, Gurabo (Puerto Rico); Jeter, S.M. [Georgia Inst. of Technology, Atlanta, GA (United States). George W. Woodruff School of Mechanical Engineering

1995-02-01T23:59:59.000Z

138

Local entropy generation analysis of a rotary magnetic heat pump regenerator  

SciTech Connect

The rotary magnetic heat pump has attractive thermodynamic performance but it is strongly influenced by the effectiveness of the regenerator. This study uses local entropy generation analysis to evaluate the regenerator design and to suggest design improvements. The results show that performance of the proposed design is dominated by heat transfer related entropy generation. This suggests that enhancement concepts that improve heat transfer should be considered, even if the enhancement causes a significant increase in viscous losses (pressure drop). One enhancement technique, the use of flow disrupters, was evaluated and the results showed that flow disrupters can significantly reduce thermodynamic losses.

Drost, M.K.; White, M.D.

1990-04-01T23:59:59.000Z

139

COMPENDIUM OF COMPLETED TESTING IN SUPPORT OF ROTARY MICROFILTRATION AT SAVANNAH RIVER SITE AND HANFORD  

SciTech Connect

This report presents a chronological summary of previous technology development efforts concerning the rotary microfiltration (RMF) unit from SpinTek{trademark}. Rotary microfiltration has been developed for high radiation application over the last decades as one of the optional filtration techniques for supplemental treatment. Supplemental treatment includes a near- or in-tank solids separation and subsequent cesium removal unit, followed by an immobilization technique; this includes options such as steam reforming, bulk vitrification or cast stone (grout). The main difference between RMF and standard cross flow filtration (CFF) is the disconnection of filtrate flux from feed velocity; i.e., filtrate flux is only dependent on transmembrane pressure, filter fouling and temperature. These efforts have been supported by the U.S. Department of Energy (DOE), Office of Cleanup Technologies since the 1990s by their Environmental Management Program (currently EM-31). In order to appropriately address future testing needs, a compilation of the relevant previous testing reports was essential. This compendium does not intend to cover all of the presentations/reports that were produced over the last decades but focuses on those of relevance for developing an RMF unit fit for deployment at the Hanford site. The report is split into three parts: (1) an introductory overview, (2) Figure 1 graphically covering the main development steps and its key players and (3) a more detailed table of the citations and brief descriptions of results and recommendations.

HUBER HJ

2011-05-24T23:59:59.000Z

140

Baseline Design Compliance Matrix for the Rotary Mode Core Sampling System  

SciTech Connect

The purpose of the design compliance matrix (DCM) is to provide a single-source document of all design requirements associated with the fifteen subsystems that make up the rotary mode core sampling (RMCS) system. It is intended to be the baseline requirement document for the RMCS system and to be used in governing all future design and design verification activities associated with it. This document is the DCM for the RMCS system used on Hanford single-shell radioactive waste storage tanks. This includes the Exhauster System, Rotary Mode Core Sample Trucks, Universal Sampling System, Diesel Generator System, Distribution Trailer, X-Ray Cart System, Breathing Air Compressor, Nitrogen Supply Trailer, Casks and Cask Truck, Service Trailer, Core Sampling Riser Equipment, Core Sampling Support Trucks, Foot Clamp, Ramps and Platforms and Purged Camera System. Excluded items are tools such as light plants and light stands. Other items such as the breather inlet filter are covered by a different design baseline. In this case, the inlet breather filter is covered by the Tank Farms Design Compliance Matrix.

LECHELT, J.A.

2000-10-17T23:59:59.000Z

Note: This page contains sample records for the topic "rotary mechanical power" 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

DESIGN OF THE ARGONNE LOW POWER REACTOR (ALPR)  

SciTech Connect

A description is given of the design of a prototype "packaged" nuclear power plant. The purpose of the plant is to alleviate fuel oil logistics and storage problems posed by remote auxiliary DEW Line radar statibns north of the Arctic Circle. The ALPR (redesignated SL-1) is a 3 Mwt, heterogeneous, highly enriched uranium- fueled, naturalcirculation boiling water reactor, ccoled and moderated with light water. Steam at 300 psig, dry and saturated (421 deg F) is passed directly from the reactor to a conventional turbine-generator to produce electric power (300 kw nominal) and space-heating (400 kw) requirements consistent with rigid mechanical and structural specifications prescribed by the military, and dictated by the extreme geophysics prevailing at the ultimate site. The over all design criteria emphasize: simplicity and reliability of operation and maintenance, with minimum supervision; minimum on-site construction; maximum use of standard components; limited water supply; utilization of local gravel for biological shielding; transportability by air lift; and nominal 3-year fuel operating lifetime per core loading. The "packaged" concept is incorporated for the initial erection. The plant is not designed for relocation. The design criteria for the prototype necessitate special features. The fuel plates are clad with an alurninurn-nickel alloy (X8001). Burnable-poison (BIO) strips are mechancally attached to the fuel assemblies to compensate the excess reactivity required for a nominal 3-year core operating lifetime. The control rods are actuated by rackand-pinion drive extensions which incorporate rotary seals. Fuel exchange is accomplished without the removal of the pressure vessel head. The electrical power generated is used to operate plant auxiliaries; the "net electric power" is dissipated by resistors. The hot water for space heating is heated in a heat exchanger by 20-psig steam, use being made of the latent heat of vaporization, and all the heat is dissipated by a finned-tube, air-cooled heat exchanger. (auth)

Grant, N.R.; Hamer, E.E.; Hooker, H.H.; Jorgensen, G.L.; Kann, W.J.; Lipinski, W.C.; Milak, G.C.; Rossin, A.D.; Shaftman, D.H.; Smaardyk, A.; Treshow, M.

1961-05-01T23:59:59.000Z

142

Applications of Laminar Weak-Link Mechanisms for Ultraprecision Synchrotron Radiation Instruments  

Science Conference Proceedings (OSTI)

Unlike traditional kinematic flexure mechanisms, laminar overconstrained weak-link mechanisms provide much higher structure stiffness and stability. Using a laminar structure configured and manufactured by chemical etching and lithography techniques, we are able to design and build linear and rotary weak-link mechanisms with ultrahigh positioning sensitivity and stability for synchrotron radiation applications. Applications of laminar rotary weak-link mechanism include: high-energy-resolution monochromators for inelastic x-ray scattering and x-ray analyzers for ultra-small-angle scattering and powder-diffraction experiments. Applications of laminar linear weak-link mechanism include high-stiffness piezo-driven stages with subnanometer resolution for an x-ray microscope. In this paper, we summarize the recent designs and applications of the laminar weak-link mechanisms at the Advanced Photon Source.

Shu, D.; Toellner, T. S.; Alp, E. E.; Maser, J.; Ilavsky, J.; Shastri, S. D.; Lee, P. L.; Narayanan, S.; Long, G. G. [Advanced Photon Source, Argonne National Laboratory, Argonne, IL 60439 (United States)

2007-01-19T23:59:59.000Z

143

Comparison of the performance of open cycle air conditioners utilizing rotary desiccant dehumidifiers  

DOE Green Energy (OSTI)

This paper presents the results of an investigation of open cycle cooling systems using rotary desiccant dehumidifiers. Three systems, the ventilation, recirculation, and Dunkle cycles have been modeled. The performance of these systems coupled with an air-based solar system has been determined using TRNSYS simulations of system operation in four representative US climates. The system COP, fraction of the total cooling load met by the desiccant system, and fraction of the thermal energy provided by solar energy are compared. An assessment of the effect of climate and system parameters on the relative performance of the three system configurations is made. It is shown that in order to meet residential loads of 7 to 11 kW with a COP on the order of unity, systems with high effectiveness must be employed. These systems were also found to perform well when operated solely with a solar thermal input.

Jurinak, J.J.; Beckman, W.A.

1985-01-01T23:59:59.000Z

144

Control schemes for an industrial rotary calciner with a heat shield around the combustion zone  

SciTech Connect

Soda ash (sodium carbonate) is produced by calcining natural trona ore (sodium sesquicarbonate) in rotary calciners. Shell overheating, the consequent deformation of the calciner shell, and heat loss are frequently encountered problems during this operation. Installation of a concentric, metallic heat shield around the calciner`s combustion zone can help to reduce the shell temperature and recover some of the energy that would otherwise be lost. Another problem often encountered is the deterioration of product quality when the system inputs deviate from their design rates. A mathematical model of the calciner with a heat shield is used to design different control schemes in order to maintain the product quality. Performance of the designed control schemes is demonstrated via computer simulation.

Ciftci, S.; Kim, N.K. [Michigan Technological Univ., Houghton, MI (United States). Dept. of Chemical Engineering] [Michigan Technological Univ., Houghton, MI (United States). Dept. of Chemical Engineering

1999-03-01T23:59:59.000Z

145

Method and apparatus for maximizing throughput of indirectly heated rotary kilns  

DOE Patents (OSTI)

An apparatus and method for achieving improved throughput capacity of indirectly heated rotary kilns used to produce pyrolysis products such as shale oils or coal oils that are susceptible to decomposition by high kiln wall temperatures is disclosed. High throughput is achieved by firing the kiln such that optimum wall temperatures are maintained beginning at the point where the materials enter the heating section of the kiln and extending to the point where the materials leave the heated section. Multiple high velocity burners are arranged such that combustion products directly impact on the area of the kiln wall covered internally by the solid material being heated. Firing rates for the burners are controlled to maintain optimum wall temperatures.

Coates, Ralph L; Smoot, L. Douglas; Hatfield, Kent E

2012-10-30T23:59:59.000Z

146

Stable five axes cryogenic photoemission manipulator without a differentially pumped rotary feedthrough  

Science Conference Proceedings (OSTI)

We report on the design and construction of an ultrahigh vacuum compatible cryogenic manipulator for angle resolved photoemission spectroscopy. Unlike designs that have been used so far, our design allows five motions (three translational and two angular) without a differentially pumped rotary feedthrough. The design greatly reduces the sample motion upon rotation, which is crucial in automatic data acquisition over a large area in the momentum space. The constructed manipulator shows smooth motions in vacuum and the lowest temperature it could reach is about 8 K at the sample position. Angular reproducibilities are found to be about 0.02 deg. for both of the angular motions. The wobbling motion from the rotation around the vertical rotation axis is found to be virtually nonexistent (less than 0.1 mm)

Kim, Bum Joon; Kim, Hyeong-Do; Cho, Deok-Yong; Kim, Myongjin; Oh, S.-J.; Kim, Changyoung [School of Physics and Center for Strongly Correlated Materials Research, Seoul National University, Seoul 151-742 (Korea, Republic of); Pohang Accelerator Laboratory, Pohang University of Science and Technology, Pohang 790-784 (Korea, Republic of); School of Physics and Center for Strongly Correlated Materials Research, Seoul National University, Seoul 151-742 (Korea, Republic of); Pohang Accelerator Laboratory, Pohang University of Science and Technology, Pohang 790-784 (Korea, Republic of); School of Physics and Center for Strongly Correlated Materials Research, Seoul National University, Seoul 151-742 (Korea, Republic of); Institute of Physics and Applied Physics, Yonsei University, Seoul 120-749 (Korea, Republic of)

2005-06-15T23:59:59.000Z

147

Unsteady-state material balance model for a continuous rotary dissolver  

Science Conference Proceedings (OSTI)

The unsteady-state continuous rotary dissolver material balance code (USSCRD) is a useful tool with which to study the performance of the rotary dissolver under a wide variety of operating conditions. The code does stepwise continuous material balance calculations around each dissolver stage and the digester tanks. Output from the code consists of plots and tabular information on the stagewise concentration profiles of UO{sub 2}, PuO{sub 2}, fission products, Pu(NO{sub 3}){sub 4}, UO{sub 2}(NO{sub 3}){sub 2}, fission product nitrates, HNO{sub 3}, H{sub 2}O, stainless steel, total particulate, and total fuel in pins. Other information about material transfers, stagewise liquid volume, material inventory, and dissolution performance is also provided. This report describes the development of the code, its limitations, key operating parameters, usage procedures, and the results of the analysis of several sets of operating conditions. Of primary importance in this work was the estimation of the steady-state heavy metal inventory in a 0.5-t/d dissolver drum. Values ranging from {similar_to}12 to >150 kg of U + Pu were obtained for a variety of operating conditions. Realistically, inventories are expected to be near the lower end of this range. Study of the variation of operating parameters showed significant effects on dissolver product composition from intermittent solids feed. Other observations indicated that the cycle times for the digesters and shear feed should be closely coupled in order to avoid potential problems with off-specification product. 19 references, 14 tables.

Lewis, B.E.

1984-09-01T23:59:59.000Z

148

DSP-Based Sensor-less Permanent Magnet Synchronous Motor Driver With Quasi-Sine PWM for Air-Conditioner Rotary Compressor.  

E-Print Network (OSTI)

??This thesis presented a sensor-less permanent magnet synchronous motor (PMSM) driver for controlling air-conditioner rotary compressor speed. In this thesis, a quasi-sine pulse-width modulation (PWM) (more)

Liu, Li-hsiang

2012-01-01T23:59:59.000Z

149

Coal desulfurization in a rotary kiln combustor. Quarterly report No. 1, April 16, 1990--July 15, 1990  

Science Conference Proceedings (OSTI)

BCR National Laboratory (BCRNL) has initiated a project aimed at evaluating the technical and economic feasibility of using a rotary kiln, suitably modified, to burn Pennsylvania anthracite wastes, co-fired with high-sulfur bituminous coal. Limestone will be injected into the kiln for sulfur control, to determine whether high sulfur capture levels can be achieved with high sorbent utilization. The principal objectives of this work are: (1) to prove the feasibility of burning anthracite refuse, with co-firing of high-sulfur bituminous coal and with limestone injection for sulfur emissions control, in a rotary kiln fitted with a Universal Energy International (UEI) air injector system; (2) to determine the emissions levels of SO{sub x} and NO{sub x} and specifically to identify the Ca/S ratios that are required to meet New Source Performance Standards; (3) to evaluate the technical and economic merits of a commercial rotary kiln combustor in comparison to fluidized bed combustors; and, (4) to ascertain the need for further work, including additional combustion tests, prior to commercial application, and to recommend accordingly a detailed program towards this end.

Cobb, J.T. Jr.

1990-08-15T23:59:59.000Z

150

Recent Drilling Activities At The Earth Power Resources Tuscarora  

Open Energy Info (EERE)

Recent Drilling Activities At The Earth Power Resources Tuscarora Recent Drilling Activities At The Earth Power Resources Tuscarora Geothermal Power Project'S Hot Sulphur Springs Lease Area Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Report: Recent Drilling Activities At The Earth Power Resources Tuscarora Geothermal Power Project'S Hot Sulphur Springs Lease Area Details Activities (3) Areas (1) Regions (0) Abstract: Earth Power Resources, Inc. recently completed a combined rotary/core hole to a depth of 3,813 feet at it's Hot Sulphur Springs Tuscarora Geothermal Power Project Lease Area located 70-miles north of Elko, Nevada. Previous geothermal exploration data were combined with geologic mapping and newly acquired seismic-reflection data to identify a northerly tending horst-graben structure approximately 2,000 feet wide by

151

A new gap separation mechanism for APS insertion devices.  

SciTech Connect

A new gap separation mechanism for use with the standard Advanced Photon Source (APS) 3.3-cm-period undulator magnetic structures has been designed and built and the first system has been installed in the APS storage ring. The system allows a minimum magnetic gap of 10 mm for use with the APS 8-mm insertion device vacuum chambers. The mechanism is a bolted steel frame structure with a simple 4-motor mechanical drive train. The control system uses servomotors with incremental rotary encoders and virtual absolute linear encoders.

Trakhtenberg, E. M.; Tcheskidov, V.; Den Hartog, P. K.; Deriy, B.; Erdmann, M.; Makarov, O.; Moog, E. R.

1999-10-25T23:59:59.000Z

152

Method and system including a double rotary kiln pyrolysis or gasification of waste material  

DOE Patents (OSTI)

A method of destructively distilling an organic material in particulate form wherein the particulates are introduced through an inlet into one end of an inner rotating kiln ganged to and coaxial with an outer rotating kiln. The inner and outer kilns define a cylindrical annular space with the inlet being positioned in registry with the axis of rotation of the ganged kilns. During operation, the temperature of the wall of the inner rotary kiln at the inlet is not less than about 500.degree. C. to heat the particulate material to a temperature in the range of from about 200.degree. C. to about 900.degree. C. in a pyrolyzing atmosphere to reduce the particulate material as it moves from the one end toward the other end. The reduced particulates including char are transferred to the annular space between the inner and the outer rotating kilns near the other end of the inner rotating kiln and moved longitudinally in the annular space from near the other end toward the one end in the presence of oxygen to combust the char at an elevated temperature to produce a waste material including ash. Also, heat is provided which is transferred to the inner kiln. The waste material including ash leaves the outer rotating kiln near the one end and the pyrolysis vapor leaves through the particulate material inlet.

McIntosh, Michael J. (Bolingbrook, IL); Arzoumanidis, Gregory G. (Naperville, IL)

1997-01-01T23:59:59.000Z

153

Method and system including a double rotary kiln pyrolysis or gasification of waste material  

DOE Patents (OSTI)

A method is described for destructively distilling an organic material in particulate form wherein the particulates are introduced through an inlet into one end of an inner rotating kiln ganged to and coaxial with an outer rotating kiln. The inner and outer kilns define a cylindrical annular space with the inlet being positioned in registry with the axis of rotation of the ganged kilns. During operation, the temperature of the wall of the inner rotary kiln at the inlet is not less than about 500 C to heat the particulate material to a temperature in the range of from about 200 C to about 900 C in a pyrolyzing atmosphere to reduce the particulate material as it moves from the one end toward the other end. The reduced particulates including char are transferred to the annular space between the inner and the outer rotating kilns near the other end of the inner rotating kiln and moved longitudinally in the annular space from near the other end toward the one end in the presence of oxygen to combust the char at an elevated temperature to produce a waste material including ash. Also, heat is provided which is transferred to the inner kiln. The waste material including ash leaves the outer rotating kiln near the one end and the pyrolysis vapor leaves through the particulate material inlet. 5 figs.

McIntosh, M.J.; Arzoumanidis, G.G.

1997-09-02T23:59:59.000Z

154

Apparatus and methods for cooling and sealing rotary helical screw compressors  

DOE Patents (OSTI)

In a compression system which incorporates a rotary helical screw compressor, and for any type of gas or refrigerant, the working liquid oil is atomized through nozzles suspended in, and parallel to, the suction gas flow, or alternatively the nozzles are mounted on the suction piping. In either case, the aim is to create positively a homogeneous mixture of oil droplets to maximize the effectiveness of the working liquid oil in improving the isothermal and volumetric efficiencies. The oil stream to be atomized may first be degassed at compressor discharge pressure by heating within a pressure vessel and recovering the energy added by using the outgoing oil stream to heat the incoming oil stream. The stripped gas is typically returned to the compressor discharge flow. In the preferred case, the compressor rotors both contain a hollow cavity through which working liquid oil is injected into channels along the edges of the rotors, thereby forming a continuous and positive seal between the rotor edges and the compressor casing. In the alternative method, working liquid oil is injected either in the same direction as the rotor rotation or counter to rotor rotation through channels in the compressor casing which are tangential to the rotor edges and parallel to the rotor center lines or alternatively the channel paths coincide with the helical path of the rotor edges. 14 figs.

Fresco, A.N.

1997-08-05T23:59:59.000Z

155

Apparatus and methods for cooling and sealing rotary helical screw compressors  

DOE Patents (OSTI)

In a compression system which incorporates a rotary helical screw compressor, and for any type of gas or refrigerant, the working liquid oil is atomized through nozzles suspended in, and parallel to, the suction gas flow, or alternatively the nozzles are mounted on the suction piping. In either case, the aim is to create positively a homogeneous mixture of oil droplets to maximize the effectiveness of the working liquid oil in improving the isothermal and volumetric efficiencies. The oil stream to be atomized may first be degassed at compressor discharge pressure by heating within a pressure vessel and recovering the energy added by using the outgoing oil stream to heat the incoming oil stream. The stripped gas is typically returned to the compressor discharge flow. In the preferred case, the compressor rotors both contain a hollow cavity through which working liquid oil is injected into channels along the edges of the rotors, thereby forming a continuous and positive seal between the rotor edges and the compressor casing. In the alternative method, working liquid oil is injected either in the same direction as the rotor rotation or counter to rotor rotation through channels in the compressor casing which are tangential to the rotor edges and parallel to the rotor centerlines or alternatively the channel paths coincide with the helical path of the rotor edges.

Fresco, Anthony N. (P.O. Box 734, Upton, NY 11973)

1997-01-01T23:59:59.000Z

156

Independent one-way acting hydraulic jar sections for a rotary drill string  

SciTech Connect

First and second separate one-way acting hydraulic jar sections each include inner and outer telescopically arranged tubular members with means for connecting one end of each the inner and outer tubular members of each jar section in the drill string. Spaced seal means between the inner and outer tubular members form a chamber in each jar section for confining hydraulic operating fluid. Hydraulic jar means are formed by cooperating means on the inner and outer tubular members within each operating fluid chamber. The cooperating means is spaced axially and disengaged in each fluid chamber when the drill string is in tension and compression during rotary drilling operation to inhibit damage and wear thereto. The hydraulic jar means in the first jar section is constructed to deliver an up jar and the jar means in the separate second jar section is constructed to deliver a down jar to the drill string. Drive means in a sealed chamber in each jar section connect the inner and outer tubular members of each jar section to allow relative longitudinal movement while preventing relative rotation therebetween. Means to equalize pressure adjacent one end of each of the chambers with the pressure in the well bore is provided in each jar section, which accommodates relative longitudinal movement of the inner and outer tubular members of each jar section for selectively creating an up or down jarring force independently of the well bore pressure.

Anderson, E.A.; Webb, D.D.

1980-10-07T23:59:59.000Z

157

A method and system including a double rotary kiln pyrolysis or gasification of waste material  

DOE Patents (OSTI)

A method is described for destructively distilling an organic material in particulate form wherein the particulates are introduced through an inlet into one end of an inner rotating kiln ganged to and coaxial with an outer rotating kiln. The inner and outer kilns define a cylindrical annular space with the inlet being positioned in registry with the axis of rotation of the ganged kilns. During operation, the temperature of the wall of the inner rotary kiln at the inlet is not less than about 500 C to heat the particulate material to a temperature in the range of from about 200 C to about 900 C in a pyrolyzing atmosphere to reduce the particulate material as it moves from the one end toward the other end. The reduced particulates including char are transferred to the annular space between the inner and the outer rotating kilns near the other end of the inner rotating kiln and moved longitudinally in the annular space from near the other end toward the one end in the presence of oxygen to combust the char at an elevated temperature to produce a waste material including ash. Also, heat is provided which is transferred to the inner kiln. The waste material including ash leaves the outer rotating kiln near the one end and the pyrolysis vapor leaves through the particulate material inlet.

McIntosh, M.J.; Arzoumanidis, G.G.

1995-12-31T23:59:59.000Z

158

EVALUATION OF ALTERNATIVE FILTER MEDIA FOR THE ROTARY MICROFILTER, PHASE 2  

SciTech Connect

Testing was conducted at the Savannah River National Laboratory (SRNL) to investigate filter membrane performance in an effort to increase rotary microfilter (RMF) throughput. Membranes were tested in the SpinTek Filtration, Inc. Static Test Cell (STC), which permitted quick and easy testing of several different membranes. Testing consisted of 100 hours tests with two different slurry feeds, based on recommendations from the phase 1 testing. One feed contained Monosodium Titanate (MST) solids in a simulated salt solution. The other feed contained simulated sludge batch 6 (SB6) solids in a simulated salt solution. Five membranes were tested, one each from filter manufactures Pall and Porvair and three from the Oak Ridge National Laboratory (ORNL). The membrane from Pall is the current membrane used on the latest generation RMF. The Porvair membrane performed well in previous STC tests as well as one of the ORNL membranes. The other two membranes from ORNL were recently developed and not available for the previous STC test. The results indicate that the Porvair filter performed best with the MST slurry and the ORNL SVB6-1B filter performed best with the SB6 slurry. Difficulty was encountered with the ORNL filters due to their dimensional thickness, which was greater than the recommended filter thickness for the STC. The STC equipment was modified to complete the testing of the ORNL filters.

Fowley, M.

2012-07-31T23:59:59.000Z

159

SOLAR POWER  

DOE Green Energy (OSTI)

Thermal energy storage (TES) is an integral part of a concentrated solar power (CSP) system. It enables plant operators to generate electricity beyond on sun hours and supply power to the grid to meet peak demand. Current CSP sensible heat storage systems employ molten salts as both the heat transfer fluid and the heat storage media. These systems have an upper operating temperature limit of around 400 C. Future TES systems are expected to operate at temperatures between 600 C to 1000 C for higher thermal efficiencies which should result in lower electricity cost. To meet future operating temperature and electricity cost requirements, a TES concept utilizing thermochemical cycles (TCs) based on multivalent solid oxides was proposed. The system employs a pair of reduction and oxidation (REDOX) reactions to store and release heat. In the storage step, hot air from the solar receiver is used to reduce the oxidation state of an oxide cation, e.g. Fe3+ to Fe2+. Heat energy is thus stored as chemical bonds and the oxide is charged. To discharge the stored energy, the reduced oxide is re-oxidized in air and heat is released. Air is used as both the heat transfer fluid and reactant and no storage of fluid is needed. This project investigated the engineering and economic feasibility of this proposed TES concept. The DOE storage cost and LCOE targets are $15/kWh and $0.09/kWh respectively. Sixteen pure oxide cycles were identified through thermodynamic calculations and literature information. Data showed the kinetics of re-oxidation of the various oxides to be a key barrier to implementing the proposed concept. A down selection was carried out based on operating temperature, materials costs and preliminary laboratory measurements. Cobalt oxide, manganese oxide and barium oxide were selected for developmental studies to improve their REDOX reaction kinetics. A novel approach utilizing mixed oxides to improve the REDOX kinetics of the selected oxides was proposed. It partially replaces some of the primary oxide cations with selected secondary cations. This causes a lattice charge imbalance and increases the anion vacancy density. Such vacancies enhance the ionic mass transport and lead to faster re-oxidation. Reoxidation fractions of Mn3O4 to Mn2O3 and CoO to Co3O4 were improved by up to 16 fold through the addition of a secondary oxide. However, no improvement was obtained in barium based mixed oxides. In addition to enhancing the short term re-oxidation kinetics, it was found that the use of mixed oxides also help to stabilize or even improve the TES properties after long term thermal cycling. Part of this improvement could be attributed to a reduced grain size in the mixed oxides. Based on the measurement results, manganese-iron, cobalt-aluminum and cobalt iron mixed oxides have been proposed for future engineering scale demonstration. Using the cobalt and manganese mixed oxides, we were able to demonstrate charge and discharge of the TES media in both a bench top fixed bed and a rotary kiln-moving bed reactor. Operations of the fixed bed configuration are straight forward but require a large mass flow rate and higher fluid temperature for charging. The rotary kiln makes direct solar irradiation possible and provides significantly better heat transfer, but designs to transport the TES oxide in and out of the reactor will need to be defined. The final reactor and system design will have to be based on the economics of the CSP plant. A materials compatibility study was also conducted and it identified Inconel 625 as a suitable high temperature engineering material to construct a reactor holding either cobalt or manganese mixed oxides. To assess the economics of such a CSP plant, a packed bed reactor model was established as a baseline. Measured cobalt-aluminum oxide reaction kinetics were applied to the model and the influences of bed properties and process parameters on the overall system design were investigated. The optimal TES system design was found to be a network of eight fixed bed reactors at 18.75 MWth each with charge and

PROJECT STAFF

2011-10-31T23:59:59.000Z

160

Program in geothermal well technology directed toward achieving DOE/DGE power-on-line goals  

DOE Green Energy (OSTI)

This document presents the material used in an oral presentation to the DOE/Division of Geothermal Energy, which was designed to illustrate the importance of well technology development in reducing geothermal well costs, and to achieve geothermal power-on-line goals. Examination of recent studies of the economics of geothermal energy leads to the conclusion that the overall sensitivity of geothermal power-on-line to well cost is in the range of one to two. Current data suggest that a vigorous R and D program in rotary drilling technology can reduce geothermal drilling costs by about 20%, but a reduction of 40 to 50% is needed to achieve DOE/DGE goals. Research in advanced drilling systems is needed to satisfy this more stringent requirement. Some critical technological deficiencies that occur when current rotary drilling techniques are used for geothermal drilling are discussed. A broadly based development program directed at correcting these deficiencies is defined.

Polito, J.; Varnado, S.G.

1978-10-01T23:59:59.000Z

Note: This page contains sample records for the topic "rotary mechanical power" 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

Performance investigation on a novel two-stage solar driven rotary desiccant cooling system using composite desiccant materials  

Science Conference Proceedings (OSTI)

In this study, a two-stage solar driven rotary desiccant cooling (TSRDC) system with novel configuration and newly developed silica gel-haloid composite desiccant is proposed aiming to reduce regeneration temperature and to achieve high energy performance. Simulated results show that there also exists an optimal rotation speed for TSRDC system. Compared with one-stage system, it is found that for the similar supply air state, the required regeneration temperature of TSRDC system is lower and for the same regeneration temperature, the cooling capacity of TSRDC is bigger. (author)

Ge, T.S.; Li, Y.; Dai, Y.J.; Wang, R.Z. [Institute of Refrigeration and Cryogenics, Shanghai Jiao Tong University, Shanghai 200240 (China)

2010-02-15T23:59:59.000Z

162

Analysis of the Energy-Saving Potential of a Three-Rotary Wheel Fresh Air-Handling Unit  

E-Print Network (OSTI)

To evaluate the energy-saving potential of a proposed three-rotary wheel fresh air-handling unit (TRWFAHU), it is numerically simulated with weather data of Changsha by using a mathematical model. Compared with a conventional fresh air-handling unit, TRWFAHU can save 10.2% of primary energy and greatly decrease the energy consumption of chiller. If waste heat is available for regenerating the desiccant, the system can achieve greater energy savings. It is feasible to improve indoor air quality (IAQ) by increasing ventilation while without increasing energy consumption.

Hao, X.; Zhang, G.; Zou, S.; Liu, H.

2006-01-01T23:59:59.000Z

163

Integrated Status and Effectiveness Monitoring Program - Entiat River Rotary Screw Traps,Snorkel Surveys, and Steelhead Redd Surveys, 2008.  

DOE Green Energy (OSTI)

The USFWS Mid-Columbia River Fishery Resource Office (MCRFRO) operated two rotary screw traps on the Entiat River as part of the Integrated Status and Effectiveness Monitoring Program from March through November of 2008. Along with the smolt traps, juvenile emigrants were also captured at remote locations throughout the Entiat watershed and its major tributary, the Mad River. A total of 16,782 wild salmonids were PIT tagged during the study period. Of this, 3,961(23.6%) were wild Oncorhynchus mykiss, 6,987 (41.6%) were wild spring run O. tshawytscha, and 5,591 (33.3%) were identified as wild O. tshawytscha of unknown run. Rotary screw trap efficiencies averaged 40.3% at the upper (Rkm 11.0) trap and 7.8% for the lower (Rkm 2.0) trap. These efficiencies were pooled for emigrant O. tshawytscha and O. mykiss. The MCRFRO conducted effectiveness monitoring snorkel surveys at 24 sites during the winter period and 30 sites during the summer and fall periods of 2008 as part of the Integrated Status and Effectiveness Monitoring Program in the Entiat River. The 2008 steelhead spawning grounds surveys were conducted weekly in the main Entiat River from rkm 1.1 to 44.2. A total of 222 steelhead redds were identified over the period from February 28 to June 16 2008 with April being the peak spawning month. Approximately 80% of the steelhead redds were located downstream of the rkm 26.

Nelle, R.D.; Desgroseiller, Tom; Cotter, Michael (U.S. Fish and Wildlife Service)

2009-02-17T23:59:59.000Z

164

Integrated Status and Effectiveness Monitoring Program - Entiat River Rotary Screw Traps, Snorkel Surveys, and Steelhead Redd Surveys, 2008-2009.  

DOE Green Energy (OSTI)

The USFWS Mid-Columbia River Fishery Resource Office (MCRFRO) operated two rotary screw traps on the Entiat River as part of the Integrated Status and Effectiveness Monitoring Program from March through November of 2008. Along with the smolt traps, juvenile emigrants were also captured at remote locations throughout the Entiat watershed and its major tributary, the Mad River. A total of 16,782 wild salmonids were PIT tagged during the study period. Of this, 3,961(23.6%) were wild Oncorhynchus mykiss, 6,987 (41.6%) were wild spring run O. tshawytscha, and 5,591 (33.3%) were identified as wild O. tshawytscha of unknown run. Rotary screw trap efficiencies averaged 40.3% at the upper (Rkm 11.0) trap and 7.8% for the lower (Rkm 2.0) trap. These efficiencies were pooled for emigrant O. tshawytscha and O. mykiss. The MCRFRO conducted effectiveness monitoring snorkel surveys at 24 sites during the winter period and 30 sites during the summer and fall periods of 2008 as part of the Integrated Status and Effectiveness Monitoring Program in the Entiat River. The 2008 steelhead spawning grounds surveys were conducted weekly in the main Entiat River from rkm 1.1 to 44.2. A total of 222 steelhead redds were identified over the period from February 28 to June 16 2008 with April being the peak spawning month. Approximately 80% of the steelhead redds were located downstream of the rkm 26.

Nelle, R.D.; Desgroseillier, Tom; Cotter, Michael [U.S. Fish and Wildlife Service

2009-04-14T23:59:59.000Z

165

EVALUATION OF SUPPLEMENTAL PRE-TREATMENT DEVELOPMENT REQUIREMENTS TO MEET TRL 6 ROTARY MICROFILTRATION  

SciTech Connect

In spring 2011, the Technology Maturation Plan (TMP) for the Supplemental Treatment Project (RPP-PLAN-49827, Rev. 0), Technology Maturation Plan for the Treatment Project (T4S01) was developed. This plan contains all identified actions required to reach technical maturity for a field-deployable waste feed pretreatment system. The supplemental pretreatment system has a filtration and a Cs-removal component. Subsequent to issuance of the TMP, rotary microfiltration (RMF) has been identified as the prime filtration technology for this application. The prime Cs-removal technology is small column ion exchange (ScIX) using spherical resorcinol formaldehyde (sRF) as the exchange resin. During fiscal year 2011 (FY2011) some of the tasks identified in the TMP have been completed. As of September 2011, the conceptual design package has been submitted to DOE as part of the critical decision (CD-1) process. This document describes the remaining tasks identified in the TMP to reach technical maturity and evaluates the validity of the proposed tests to fill the gaps as previously identified in the TMP. The potential vulnerabilities are presented and the completed list of criteria for the DOE guide DOE G 413.3-4 different technology readiness levels are added in an attachment. This evaluation has been conducted from a technology development perspective - all programmatic and manufacturing aspects were excluded from this exercise. Compliance with the DOE G 413.3-4 programmatic and manufacturing requirements will be addressed directly by the Treatment Project during the course of engineering design. The results of this evaluation show that completion of the proposed development tasks in the TMP are sufficient to reach TRL 6 from a technological point of view. The tasks involve actual waste tests using the current baseline configuration (2nd generation disks, 40 psi differential pressure, 30 C feed temperature) and three different simulants - the PEP, an AP-Farm and an S-saltcake. Based on FY2011 dollars used in the TMP, these tests will have ROM costs of $950K and require up to 10 months to complete. Completion of the simulant testing will satisfy the TRL 5 and TRL 6 criteria that are related to system testing with materials that represent the full range of properties in a relevant environment.

HUBER HJ

2011-10-03T23:59:59.000Z

166

Next Generation Geothermal Power Plants  

SciTech Connect

A number of current and prospective power plant concepts were investigated to evaluate their potential to serve as the basis of the next generation geothermal power plant (NGGPP). The NGGPP has been envisaged as a power plant that would be more cost competitive (than current geothermal power plants) with fossil fuel power plants, would efficiently use resources and mitigate the risk of reservoir under-performance, and minimize or eliminate emission of pollutants and consumption of surface and ground water. Power plant concepts were analyzed using resource characteristics at ten different geothermal sites located in the western United States. Concepts were developed into viable power plant processes, capital costs were estimated and levelized busbar costs determined. Thus, the study results should be considered as useful indicators of the commercial viability of the various power plants concepts that were investigated. Broadly, the different power plant concepts that were analyzed in this study fall into the following categories: commercial binary and flash plants, advanced binary plants, advanced flash plants, flash/binary hybrid plants, and fossil/geothed hybrid plants. Commercial binary plants were evaluated using commercial isobutane as a working fluid; both air-cooling and water-cooling were considered. Advanced binary concepts included cycles using synchronous turbine-generators, cycles with metastable expansion, and cycles utilizing mixtures as working fluids. Dual flash steam plants were used as the model for the commercial flash cycle. The following advanced flash concepts were examined: dual flash with rotary separator turbine, dual flash with steam reheater, dual flash with hot water turbine, and subatmospheric flash. Both dual flash and binary cycles were combined with other cycles to develop a number of hybrid cycles: dual flash binary bottoming cycle, dual flash backpressure turbine binary cycle, dual flash gas turbine cycle, and binary gas turbine cycle. Results of this study indicate that dual flash type plants are preferred at resources with temperatures above 400 F. Closed loop (binary type) plants are preferred at resources with temperatures below 400 F. A rotary separator turbine upstream of a dual flash plant can be beneficial at Salton Sea, the hottest resource, or at high temperature resources where there is a significant variance in wellhead pressures from well to well. Full scale demonstration is required to verify cost and performance. Hot water turbines that recover energy from the spent brine in a dual flash cycle improve that cycle's brine efficiency. Prototype field tests of this technology have established its technical feasibility. If natural gas prices remain low, a combustion turbine/binary hybrid is an economic option for the lowest temperature sites. The use of mixed fluids appear to be an attractive low risk option. The synchronous turbine option as prepared by Barber-Nichols is attractive but requires a pilot test to prove cost and performance. Dual flash binary bottoming cycles appear promising provided that scaling of the brine/working fluid exchangers is controllable. Metastable expansion, reheater, Subatmospheric flash, dual flash backpressure turbine, and hot dry rock concepts do not seem to offer any cost advantage over the baseline technologies. If implemented, the next generation geothermal power plant concept may improve brine utilization but is unlikely to reduce the cost of power generation by much more than 10%. Colder resources will benefit more from the development of a next generation geothermal power plant than will hotter resources. All values presented in this study for plant cost and for busbar cost of power are relative numbers intended to allow an objective and meaningful comparison of technologies. The goal of this study is to assess various technologies on an common basis and, secondarily, to give an approximate idea of the current costs of the technologies at actual resource sites. Absolute costs at a given site will be determined by the specifics of a giv

Brugman, John; Hattar, Mai; Nichols, Kenneth; Esaki, Yuri

1995-09-01T23:59:59.000Z

167

Next Generation Geothermal Power Plants  

DOE Green Energy (OSTI)

A number of current and prospective power plant concepts were investigated to evaluate their potential to serve as the basis of the next generation geothermal power plant (NGGPP). The NGGPP has been envisaged as a power plant that would be more cost competitive (than current geothermal power plants) with fossil fuel power plants, would efficiently use resources and mitigate the risk of reservoir under-performance, and minimize or eliminate emission of pollutants and consumption of surface and ground water. Power plant concepts were analyzed using resource characteristics at ten different geothermal sites located in the western United States. Concepts were developed into viable power plant processes, capital costs were estimated and levelized busbar costs determined. Thus, the study results should be considered as useful indicators of the commercial viability of the various power plants concepts that were investigated. Broadly, the different power plant concepts that were analyzed in this study fall into the following categories: commercial binary and flash plants, advanced binary plants, advanced flash plants, flash/binary hybrid plants, and fossil/geothed hybrid plants. Commercial binary plants were evaluated using commercial isobutane as a working fluid; both air-cooling and water-cooling were considered. Advanced binary concepts included cycles using synchronous turbine-generators, cycles with metastable expansion, and cycles utilizing mixtures as working fluids. Dual flash steam plants were used as the model for the commercial flash cycle. The following advanced flash concepts were examined: dual flash with rotary separator turbine, dual flash with steam reheater, dual flash with hot water turbine, and subatmospheric flash. Both dual flash and binary cycles were combined with other cycles to develop a number of hybrid cycles: dual flash binary bottoming cycle, dual flash backpressure turbine binary cycle, dual flash gas turbine cycle, and binary gas turbine cycle. Results of this study indicate that dual flash type plants are preferred at resources with temperatures above 400 F. Closed loop (binary type) plants are preferred at resources with temperatures below 400 F. A rotary separator turbine upstream of a dual flash plant can be beneficial at Salton Sea, the hottest resource, or at high temperature resources where there is a significant variance in wellhead pressures from well to well. Full scale demonstration is required to verify cost and performance. Hot water turbines that recover energy from the spent brine in a dual flash cycle improve that cycle's brine efficiency. Prototype field tests of this technology have established its technical feasibility. If natural gas prices remain low, a combustion turbine/binary hybrid is an economic option for the lowest temperature sites. The use of mixed fluids appear to be an attractive low risk option. The synchronous turbine option as prepared by Barber-Nichols is attractive but requires a pilot test to prove cost and performance. Dual flash binary bottoming cycles appear promising provided that scaling of the brine/working fluid exchangers is controllable. Metastable expansion, reheater, Subatmospheric flash, dual flash backpressure turbine, and hot dry rock concepts do not seem to offer any cost advantage over the baseline technologies. If implemented, the next generation geothermal power plant concept may improve brine utilization but is unlikely to reduce the cost of power generation by much more than 10%. Colder resources will benefit more from the development of a next generation geothermal power plant than will hotter resources. All values presented in this study for plant cost and for busbar cost of power are relative numbers intended to allow an objective and meaningful comparison of technologies. The goal of this study is to assess various technologies on an common basis and, secondarily, to give an approximate idea of the current costs of the technologies at actual resource sites. Absolute costs at a given site will be determined by the specifics of a given pr

Brugman, John; Hattar, Mai; Nichols, Kenneth; Esaki, Yuri

1995-09-01T23:59:59.000Z

168

EPRI Ergonomics Handbook for the Electric Power Industry: Ergonomic Interventions for Plant Operators and Mechanics in Fossil-Fueled Generating Stations  

Science Conference Proceedings (OSTI)

The EPRI Occupational Health and Safety (OHS) Committee Research Program has provided ergonomic information to the electric energy industry workforce since 1999. This is the sixth EPRI ergonomics handbook; it specifically focuses on tasks performed by plant operators and mechanics working in fossil-fueled generating stations and also addresses some tasks performed by steam services technicians. Fossil-fueled generating station operational and mechanical work is physically strenuous and can expose workers...

2008-12-15T23:59:59.000Z

169

DOE Hydrogen Analysis Repository: Renewable Energy Power System Modular  

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

Renewable Energy Power System Modular Simulator (RPM-Sim) Renewable Energy Power System Modular Simulator (RPM-Sim) Project Summary Full Title: Renewable Energy Power System Modular Simulator (RPM-Sim) Project ID: 104 Principal Investigator: Edward Muljadi Keywords: Renewable; hybrid electric vehicles (HEV) Purpose This is a package software program developed based on a modular concept. Each module consists of a type of equipment or an element of a power system (for example, diesel-genset, wind turbine generator, village load, rotary converter, PV-inverter module, fuel cell-inverter module (developed by Prof. Hashem Nehrir, Montana State University), electrolysis module (developed by Prof. Hosein Salehfar and Prof. Mann University of North Dakota). Performer Principal Investigator: Edward Muljadi Organization: National Renewable Energy Laboratory (NREL)

170

EVALUATION OF AP-FARM SIMULANT COMPOSITION FOR ROTARY MICROFILTER TESTING  

SciTech Connect

This document identifies the feed composition of a Hanford AP tank farm simulant for rotary microfiltration testing. The composition is based on an Hanford Tank Waste Operations Simulator (HTWOS) model run in combination with Tank Waste Information Network (TWINS) data and mineralogical studies of actual waste solids. The feed simulant is intended to be used in test runs at SRNL. The simulant will be prepared in two parts: (1) A supernate, composed of water-soluble salts and (2) The undissolved (actually, undissolvable) solids. Test slurries with distinct solids concentrations (e.g., 0.5, 5 and 10 wt%) are then prepared as needed. The base for the composition of supernate and solids is the modeled feed sequence for a deployment scenario of the Supplemental Pretreatment units within AP-farm. These units comprise a filtration part, the RMF, and a Cesium-removal part, a Small Column Ion Exchange. The primary use of this simulant is for filtration testing - however, in case that it is also used for ion-exchange tests, the amount of Cs-137 that would need to be added is available in Table 1 and Attachment 3. A modified model run (MMR-049) of the Hanford Tank Waste Operations Simulator (HTWOS) system plan 6 case 3 was performed to identify the feed sequence. Case 3 assumed supplemental treatment besides the low activity waste (LAW) melter with supplemental pretreatment supporting the pretreatment facility. The MMR did not cap the duration of supplemental pretreatment to 15 months, but rather used it throughout the entire treatment mission as an add-on option to the pretreatment facility at the Waste Treatment and Immobilization Plant (WTP). Tank 241-AP-105 (AP-105) was chosen as the feed tank to the filtration unit. Other parameters included a fixed minimum of 0.5 wt% solids in the feed and a maximum Na-concentration of 5M in the supernate. The solids rejection from the filtration unit was set to 99.99% and the maximum allowed amount of solids within tank AP-105 was set to 10 wt%. A comprehensive description of the run and the full suite of results were issued as SVF-2364-00. The list of individual feed events including the amounts of liquid and solids transferred for the first five years is added as Attachment 2; the chemical composition of the supernate feed comprises Attachment 3. For the simulant composition, only the first five years of proposed feed delivery were taken into account. The main outcome of MMR-049 was that for the first five years, the feed would come mostly from AP-farms. Multiple delivery campaigns to AP-105 are included in this average feed, while minimizing the amount of contributing tanks to the solids in the feed mix.

HUBER HJ

2011-09-19T23:59:59.000Z

171

Rotary bed reactor for chemical-looping combustion with carbon capture  

E-Print Network (OSTI)

Chemical-looping combustion (CLC) is a novel and promising technology for power generation with inherent CO2 capture. Currently almost all the research has been focused on developing CLC based inter-connected fluidized bed ...

Zhao, Zhenlong

2012-01-01T23:59:59.000Z

172

Evaluation of rotary drum screens used to protect juvenile salmonids in the Yakima River Basin, Washington, USA  

DOE Green Energy (OSTI)

The purpose of this study is to assess the design and operation of rotary drum screens. Chinook salmon Oncorhynchus tshawytscha and steelhead O. mykiss are the potentially affected fish. Cold-branded fish are released upstream of the screen facilities. For descaling tests, the fish are captured as they exit the facility and are examined for injuries, descaling, and post-test mortalities. For screen passage tests, nets are placed in the irrigation ditch, downstream of the screen facilities, to determine if fish can pass through or over the screens. More than 100 tests have been conducted with almost 35,000 fish. Additionally, nearly 2000 native fish have been evaluated. Usually less than 2% of the test fish are injured or dead, and the condition of test fish does not differ from the controls. Less than 2% of the fish pass through or over the screens when the screen seals are properly installed and maintained.

Neitzel, D.A.; Abernethy, C.S. (Pacific Northwest Lab., Richland, WA (USA)); Clune, T.J. (USDOE Bonneville Power Administration, Yakima, WA (USA))

1990-10-01T23:59:59.000Z

173

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

174

Remote-Controllable Power Outlet System for Home Power Management  

Science Conference Proceedings (OSTI)

In this paper we describe the Wireless Power-Controlled Outlet Module (WPCOM) with a scalable mechanism for home power management which we have developed. The WPCOM integrates the multiple AC power sockets and a simple low-power microcontroller into ...

Chia-Hung Lien; Ying-Wen Bai; Ming-Bo Lin

2007-11-01T23:59:59.000Z

175

Modeling and Computer Simulation of the Pulsed Powering of Mechanical D.C. Circuit Breakers for the CERN/LHC Superconducting Magnet Energy Extraction System  

E-Print Network (OSTI)

This article presents the results of modeling and computer simulation of non-linear devices such as the Electromagnetic Driver of a D.C. Circuit Breaker. The mechanical and electromagnetic parts of the Driver are represented as equivalent electrical circuits and all basic processes of the Driver's magnetic circuit are calculated.

Anushat, V; Erokhin, A; Kussul, A; Medvedko, A S

2000-01-01T23:59:59.000Z

176

Modular simulation of a hybrid power system with diesel and wind turbine generation  

Science Conference Proceedings (OSTI)

In this paper, the authors present the modular simulation tool they developed to help study the system dynamics for wind-diesel power systems. The principal modules of the simulator, which include a diesel generator, a wind turbine generator, a rotary converter with a battery, a village load and a dump load, are described. With a case study, the authors demonstrate how the designer benefits from easily understanding the effects of system modifications. Using this tool, a designer can easily develop control strategies to balance the system power flows under different generation/load conditions.

Bialasiewicz, J.T.; Mulijadi, E.; Drouilhet, S.; Nix, G.

1998-06-01T23:59:59.000Z

177

Evaluation of the thermal-hydraulic response and fuel rod thermal and mechanical deformation behavior during the power burst facility test LOC-3. [PWR  

Science Conference Proceedings (OSTI)

An evaluation of the results from the LOC-3 nuclear blowdown test conducted in the Power Burst Facility is presented. The test objective was to examine fuel and cladding behavior during a postulated cold leg break accident in a pressurized water reactor (PWR). Separate effects of rod internal pressure and the degree of irradiation were investigated in the four-rod test. Extensive cladding deformation (ballooning) and failure occurred during blowdown. The deformation of the low and high pressure rods was similar; however, the previously irradiated test rod deformed to a greater extent than a similar fresh rod exposed to identical system conditions.

Yackle, T.R.; MacDonald, P.E.; Broughton, J.M.

1980-01-01T23:59:59.000Z

178

SERI Desiccant Cooling Test Facility. Status report. Preliminary data on the performance of a rotary parallel-passage silica-gel dehumidifier  

DOE Green Energy (OSTI)

This report describes the SERI Desiccant Cooling Test Facility. The facility can test bench-scale rotary dehumidifiers over a wide range of controlled conditions. We constructed and installed in the test loop a prototype parallel-passage rotary dehumidifier that has spirally wound polyester tape coated with silica gel. The initial tests gave satisfactory results indicating that approximately 90% of the silica gel was active and the overall Lewis number of the wheel was near unity. The facility has several minor difficulties including an inability to control humidity satisfactorily and nonuniform and highly turbulent inlet velocities. To completely validate the facility requires a range of dehumidifier designs. Several choices are available including constructing a second parallel-passage dehumidifier with the passage spacing more uniform.

Schultz, K.J.

1986-04-01T23:59:59.000Z

179

Power Operations  

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

Power Operations Outage Coordination Standards of Conduct Transmission Planning You are here: SN Home page > Power Operations Power Operations Western's Sierra Nevada Region...

180

Electric vehicle using the vehicle's kinetic and mechanical power to regenerate it's energy storage device  

SciTech Connect

This patent describes an electrocombustible drive vehicle which consists of: a. motor means for driving the electrocombustible vehicle the motor means being activated by combustible fuel or a pulsating voltage; b. first means for storing electrical energy for use as DC voltage; c. chopper means for providing a pulsating voltage to the motor means for activation of electro portion of the motor means, the first means for storing electrical energy proving DC voltage input to the chopper means; d. means for controlling the quantity of the pulsating voltage supplied to the motor means; e. first generator means for producing electrical voltage, the first generator means mechanical input being connected to the direct output of the motor means independent of the movement of the vehicle allowing the generator to produce a voltage while the vehicle is in the idle position; f. means for charging the first means for storing electrical voltage produced by the generator; g. second means for storing electrical energy for use as a DC voltage; h. second generator means for producing electrical voltage, the second generator means mechanical input being connected to a velocity dependent moving portion of electric vehicle independent of the output of the motor means and dependent on air movement relative to the vehicle, means for selectively charging the first and second means for storing electrical voltage employing the electrical voltage produced by the second generator means; i. means for charging the second means for storing electrical energy employing the electrical voltage produced by the chopper means.

Barnard, R.

1986-07-01T23:59:59.000Z

Note: This page contains sample records for the topic "rotary mechanical power" 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

Apparatus and method for controlling the rotary airlocks in a coal processing system by reversing the motor current rotating the air lock  

SciTech Connect

An improvement to a coal processing system where hard materials found in the coal may cause jamming of either inflow or outflow rotary airlocks, each driven by a reversible motor. The instantaneous current used by the motor is continually monitored and compared to a predetermined value. If an overcurrent condition occurs, indicating a jamming of the airlock, a controller means starts a "soft" reverse rotation of the motor thereby clearing the jamming. Three patterns of the motor reversal are provided.

Groombridge, Clifton E. (Hardin, MT)

1996-01-01T23:59:59.000Z

182

The power balance method For aerodynamic performance assessment  

E-Print Network (OSTI)

This thesis describes the use of the power balance method for performance estimation of aircraft configurations. In this method, mechanical power production and mechanical power consumption of the aircraft are balanced, ...

Sato, Sho, Ph. D. Massachusetts Institute of Technology

2012-01-01T23:59:59.000Z

183

A sink-n-hoist framework for leakage power reduction  

Science Conference Proceedings (OSTI)

Power leakage constitutes an increasing fraction of the total power consumption in modern semiconductor technologies. Recent research efforts have tried to integrate architecture and compiler solutions to employ power-gating mechanisms to reduce leakage ... Keywords: balanced scheduling, compilers for low power, data-flow analysis, leakage power reduction, power-gating mechanisms

Yi-Ping You; Chung-Wen Huang; Jenq Kuen Lee

2005-09-01T23:59:59.000Z

184

Investigation of a rotary valving system with variable valve timing for internal combustion engines: Final technical report  

DOE Green Energy (OSTI)

The objective of the program was to provide a functional demonstration of the Hansen Rotary Valving System with Variable Valve timing (HRVS/VVT), capable of throttleless inlet charge control, as an alternative to conventional poppet-valves for use in spark ignited internal combustion engines. The goal of this new technology is to secure benefits in fuel economy, broadened torque band, vibration reduction, and overhaul accessibility. Additionally, use of the variable valve timing capability to vary the effective compression ratio is expected to improve multi-fuel tolerance and efficiency. Efforts directed at the design of HRVS components proved to be far more extensive than had been anticipated, ultimately requiring that proof-trial design/development work be performed. Although both time and funds were exhausted before optical or ion-probe types of in-cylinder investigation could be undertaken, a great deal of laboratory data was acquired during the course of the design/development work. This laboratory data is the basis for the information presented in this Final Report.

Cross, P.C.; Hansen, C.N.

1994-11-18T23:59:59.000Z

185

Technical Letter Report - Analysis of Ultrasonic Data on Piping Cracks at Ignalina Nuclear Power Plant Before and After Applying a Mechanical Stress Improvement Process, JCN-N6319, Task 2  

Science Conference Proceedings (OSTI)

Pacific Northwest National Laboratory (PNNL) is assisting the United States Nuclear Regulatory Commission (NRC) in developing a position on the management of primary water stress corrosion cracking (PWSCC) in piping systems previously analyzed for leak-before-break (LBB). Part of this work involves determining whether inspections alone are sufficient or if inspections plus mitigation techniques are needed. The work described in this report addresses the reliability of ultrasonic phased-array (PA) examinations for inspection of cracks that have been subjected to the mitigation method of mechanical stress improvement process (MSIP). It is believed that stresses imparted during MSIP may make ultrasonic crack responses in piping welds more difficult to detect and accurately characterize. To explore this issue, data were acquired, both before and after applying MSIP, and analyzed from cracked areas in piping at the Ignalina Nuclear Power Plant (INPP) in Lithuania. This work was performed under NRC Project JCN-N6319, PWSCC in Leak-Before-Break Systems.

Anderson, Michael T.; Cumblidge, Stephen E.; Crawford, Susan L.

2008-02-26T23:59:59.000Z

186

Enumeration of Juvenile Salmonids in the Okanogan Basin Using Rotary Screw Traps, Performance Period: March 15, 2006 - July 15, 2006.  

DOE Green Energy (OSTI)

The Colville Tribes identified the need for collecting baseline census data on the timing and abundance of juvenile salmonids in the Okanogan River basin for the purpose of documenting local fish populations, augmenting existing fishery data and assessing natural production trends of salmonids. This report documents and assesses the pilot year of rotary trap capture of salmonid smolts on the Okanogan River. The project is a component of the Colville Tribes Okanogan Basin Monitoring and Evaluation Program (OBMEP) which began in 2004. Trapping for outmigrating fish began on 14 March 2006 and continued through 11 July 2006. Anadromous forms of Oncorhynchus, including summer steelhead (O. mykiss), Chinook (O. tshawytscha), and sockeye (O. nerka), were targeted for this study; all have verified, natural production in the Okanogan basin. Both 8-ft and 5-ft rotary screw traps were deployed on the Okanogan River from the Highway 20 Bridge and typically fished during evening hours or 24 hours per day, depending upon trap position and discharge conditions. Juvenile Chinook salmon were the most abundant species trapped in 2006 (10,682 fry and 2,024 smolts), followed by sockeye (205 parr and 3,291 smolts) and steelhead (1 fry and 333 smolts). Of the trapped Chinook, all fry were wild origin and all but five of the smolts were hatchery-reared. All trapped sockeye were wild origin and 88% of the steelhead smolts were hatchery-reared. Mark-recapture experiments were conducted using Chinook fry and hatchery-reared steelhead smolts (sockeye were not used in 2006 because the peak of the juvenile migration occurred prior to the onset of the mark-recapture experiments). A total of 930 chinook fry were marked and released across eight separate release dates (numbers of marked Chinook fry released per day ranged from 34 to 290 fish). A total of 11 chinook fry were recaptured for an overall trap efficiency of 1.18%. A total of 710 hatchery-reared steelhead were marked and released across three separate release dates (numbers of steelhead released per day ranged from 100 to 500 fish). A total of 12 steelhead were recaptured for an overall trap efficiency of 1.69%. A pooled Peterson estimator with a Chapman modification was used to produce population estimates for wild Chinook fry and hatchery-reared steelhead based on the results of the mark-recapture experiments. The 2006 populations for Chinook and steelhead were estimated to be 381,554 (95% confidence intervals: 175,731-587,377) and 14,164 (6,999-21,330), respectively. The population estimates were based on the periods in which mark-recapture experiments were initialized through the end of the trapping season (10 May for steelhead and 1 June for Chinook).

Johnson, Peter N.; Rayton, Michael D.

2007-05-01T23:59:59.000Z

187

MHK Technologies/PowerGin | Open Energy Information  

Open Energy Info (EERE)

PowerGin PowerGin < MHK Technologies Jump to: navigation, search << Return to the MHK database homepage PowerGin.jpg Technology Profile Primary Organization Kinetic Wave Power Technology Resource Click here Wave Technology Type Click here Overtopping Technology Readiness Level Click here TRL 1 3 Discovery Concept Def Early Stage Dev Design Engineering Technology Description The energy conversion rate of the PowerGin is 20 30 The PowerGin makes use of both vertical and horizontal energy which allows the device to operate effectively in low wave states Buckets are mounted in a dense spiral pattern around the perimeter similar to hydro electric turbine blades which provide a high surface area to catch wave energy As the buckets on the ramp side of the rotor fill with wave water the rotors begin to turn Water is emptied out of the bucket instantaneously when it is submerged under the water by a patented gravity driven flap on the bottom The flap slams shut in one direction and opens in the other The two rotors rotate in opposite directions which maintain balance and continuous rotary power flow

188

Breakthrough in fracture mechanics  

SciTech Connect

Fracture mechanics, the science of calculating material characteristics, stress, and flaws in plant equipment to evaluate structural integrity, usually spares the owners of nuclear power plants unnecessary expense. Instead of replacing equipment prematurely or waiting for costly, unscheduled materials failures that can take months to repair and cost thousands of dollars a day for replacement power, utilities use fracture mechanics techniques to carefully consider their options. If analyses show repair is unnecessary, plant operation can confidently be resumed. If repair is required, it can either be done immediately or, if deferrable, be scheduled for a later, more convenient outage.

Lihach, N.

1981-05-01T23:59:59.000Z

189

Bohmian Mechanics  

E-Print Network (OSTI)

Bohmian mechanics is a theory about point particles moving along trajectories. It has the property that in a world governed by Bohmian mechanics, observers see the same statistics for experimental results as predicted by quantum mechanics. Bohmian mechanics thus provides an explanation of quantum mechanics. Moreover, the Bohmian trajectories are defined in a non-conspiratorial way by a few simple laws.

Detlef Duerr; Sheldon Goldstein; Roderich Tumulka; Nino Zanghi

2009-03-15T23:59:59.000Z

190

Mechanical down jar mechanism  

SciTech Connect

This paper describes a mechanical down jar mechanism for freeing stuck objects within a well bore and for conducting other down hole activities. It comprises: an elongate tubular housing having anvil means; mandrel means adapted for connection to an object to be moved downwardly within the well bore and being disposed in telescoping relation with the anvil means and the elongate tubular housing, the mandrel means adapted to be struck by the anvil means to impart a downwardly directed jarring force to the object; the elongate tubular housing having internal firing and recocking detent groove means located in axially spaced relation and forming a firing lug support land therebetween; a radially expandable and retractable firing lug assembly being disposed within the elongate tubular housing and in absence of force being applied axially thereto being radially restrained by the firing lug support land; load spring means being disposed within the elongate tubular housing and being in downward force transmitting relation with the firing lug assembly; recocking spring means being disposed within the elongate tubular housing and having upward axial force transmitting relation with the firing lug assembly.

Taylor, W.T.

1991-12-03T23:59:59.000Z

191

Supporting Solar Power in Renewables Portfolio Standards: Experience from the United States  

E-Print Network (OSTI)

mechanisms to support wind power development." Renewablebe competitive with wind power and other forms of renewabletechnologies (e.g. , wind power). As a prime illustration of

Wiser, Ryan

2010-01-01T23:59:59.000Z

192

A safety assessment of rotary mode core sampling in flammable gas single shell tanks: Hanford Site, Richland, Washington  

SciTech Connect

This safety assessment (SA) addresses each of the required elements associated with the installation, operation, and removal of a rotary-mode core sampling (RMCS) device in flammable-gas single-shell tanks (SSTs). The RMCS operations are needed in order to retrieve waste samples from SSTs with hard layers of waste for which push-mode sampling is not adequate for sampling. In this SA, potential hazards associated with the proposed action were identified and evaluated systematically. Several potential accident cases that could result in radiological or toxicological gas releases were identified and analyzed and their consequences assessed. Administrative controls, procedures and design changes required to eliminate or reduce the potential of hazards were identified. The accidents were analyzed under nine categories, four of which were burn scenarios. In SSTS, burn accidents result in unacceptable consequences because of a potential dome collapse. The accidents in which an aboveground burn propagates into the dome space were shown to be in the ``beyond extremely unlikely`` frequency category. Given the unknown nature of the gas-release behavior in the SSTS, a number of design changes and administrative controls were implemented to achieve these low frequencies. Likewise, drill string fires and dome space fires were shown to be very low frequency accidents by taking credit for the design changes, controls, and available experimental and analytical data. However, a number of Bureau of Mines (BOM) tests must be completed before some of the burn accidents can be dismissed with high confidence. Under the category of waste fires, the possibility of igniting the entrapped gases and the waste itself were analyzed. Experiments are being conducted at the BOM to demonstrate that the drill bit is not capable of igniting the trapped gas in the waste. Laboratory testing and thermal analysis demonstrated that, under normal operating conditions, the drill bit will not create high enough temperatures to initiate a propagating reaction in the waste. However, system failure that coincides in a waste layer with high organic content and low moisture may initiate an exothermic reaction in the waste. Consequently, a conservative approach based on the current state of the knowledge resulted in limiting the drilling process to a subset of the flammable-gas tanks. Accidents from the chemical reactions and criticality category are shown to result in acceptable risk. A number of accidents are shown to potentially result in containment (tank liner) breach below the waste level. Mitigative features are provided for these accidents. Gas-release events without burn also are analyzed, and radiological and toxicological consequences are shown to be within risk guidelines. Finally, the consequences of potential spills are shown to be within the risk guidelines.

Raymond, R.E.

1996-04-15T23:59:59.000Z

193

Quantum Mechanics  

Science Conference Proceedings (OSTI)

... Surprise: Photon-count-based heralding is powerful! Highlight: Pairs, squeezing and cats. ... Highlight: Pairs, squeezing and cats. (cont.) ...

2012-09-15T23:59:59.000Z

194

DEPARTMENT OF MECHANICAL ENGINEERING  

E-Print Network (OSTI)

the Chair Advanced Power Systems Research Group Engineering Education Innovation Research Group Mechanics of MultiScale Materials Research Group MultiScale Systems and Sensors Research Group Space Systems Research Group Sustainable Manufacturing and Design Research Group Faculty Profiles Michigan

Endres. William J.

195

Engineering Fundamentals - Mechanical Engineering Topics, Version 4.0  

Science Conference Proceedings (OSTI)

The Mechanical Engineering module covers basic terms and concepts of mechanical engineering and discusses their applications in nuclear power plants. This course will ...

2013-01-17T23:59:59.000Z

196

Power Electronics  

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

Power electronics (PE) play a critical role in transforming the current electric grid into the next-generation grid. PE enable utilities to deliver power to their customers effectively while...

197

Wind Power  

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

Power As the accompanying map of New Mexico shows, the best wind power generation potential near WIPP is along the Delaware Mountain ridge line of the southern Guadalupe Mountains,...

198

Power Supplies  

Science Conference Proceedings (OSTI)

Figure: ...Fig. 5 Typical medium-frequency induction power supply incorporating (a) a parallel inverter and (b) a series inverter...

199

Power supply  

DOE Patents (OSTI)

A modular, low weight impedance dropping power supply with battery backup is disclosed that can be connected to a high voltage AC source and provide electrical power at a lower voltage. The design can be scaled over a wide range of input voltages and over a wide range of output voltages and delivered power.

Yakymyshyn, Christopher Paul (Seminole, FL); Hamilton, Pamela Jane (Seminole, FL); Brubaker, Michael Allen (Loveland, CO)

2007-12-04T23:59:59.000Z

200

Power Assure | Open Energy Information  

Open Energy Info (EERE)

energy efficiency in data centers. The company manages both IT and mechanical electrical load to match IT demand. References Power Assure1 LinkedIn Connections CrunchBase...

Note: This page contains sample records for the topic "rotary mechanical power" 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

A bubble-powered micro-rotor: conception, manufacturing, assembly, and characterization  

E-Print Network (OSTI)

A steady fluid flow, called microstreaming, can be generated in the vicinity of a micro-bubble excited by ultrasound. In this article, we use this phenomenon to assemble and power a microfabricated rotor at rotation speeds as high as 625 rpm. The extractible power is estimated to be on the order of a few femtowatts. A first series of experiments with uncontrolled rotor shapes is presented, demonstrating the possibility of this novel actuation scheme. A second series of experiments with 65 micron rotors micromanufactured in SU-8 resin are presented. Variables controlling the rotation speed and rotor stability are investigated, such as the bubble diameter, the acoustic excitation frequency and amplitude, and the rotor geometry. Finally, an outlook is provided on developing this micro-rotor into a MEMS-based motor capable of delivering tunable, infinitesimal rotary power at the microscale.

Kao, Jonathan; Warren, John; Xu, Jie; Attinger, Daniel; 10.1088/0960-1317/17/12/010

2009-01-01T23:59:59.000Z

202

Mechanical Design  

SciTech Connect

The particle beam of the SXR (soft x-ray) beam line in the LCLS (Linac Coherent Light Source) has a high intensity in order to penetrate through samples at the atomic level. However, the intensity is so high that many experiments fail because of severe damage. To correct this issue, attenuators are put into the beam line to reduce this intensity to a level suitable for experimentation. Attenuation is defined as 'the gradual loss in intensity of any flux through a medium' by [1]. It is found that Beryllium and Boron Carbide can survive the intensity of the beam. At very thin films, both of these materials work very well as filters for reducing the beam intensity. Using a total of 12 filters, the first 9 being made of Beryllium and the rest made of Boron Carbide, the beam's energy range of photons can be attenuated between 800 eV and 9000 eV. The design of the filters allows attenuation for different beam intensities so that experiments can obtain different intensities from the beam if desired. The step of attenuation varies, but is relative to the thickness of the filter as a power function of 2. A relationship for this is f(n) = x{sub 0}2{sup n} where n is the step of attenuation desired and x{sub 0} is the initial thickness of the material. To allow for this desired variation, a mechanism must be designed within the test chamber. This is visualized using a 3D computer aided design modeling tool known as Solid Edge.

2010-08-25T23:59:59.000Z

203

Challenges in Mechanical Performances of Materials in Next ...  

Science Conference Proceedings (OSTI)

Aug 2, 2010 ... Symposium, Challenges in Mechanical Performances of Materials in Next Generation Nuclear Power Plants. Sponsorship, The Minerals...

204

Prestressed glass, aezoelectric electrical power source  

DOE Patents (OSTI)

An electrical power source which comprises a body of prestressed glass having a piezoelectric transducer supported on the body in direct mechanical coupling therewith.

Newson, Melvin M. (Albuquerque, NM)

1976-01-01T23:59:59.000Z

205

Bohmian mechanics contradicts quantum mechanics  

E-Print Network (OSTI)

Bohmian mechanics contradicts quantum mechanics Arnold Neumaier Institut fur Mathematik, Universit://solon.cma.univie.ac.at/#24;neum/ Abstract. It is shown that, for a harmonic oscillator in the ground state, Bohmian mechanics and quantum mechanics predict values of opposite sign for certain time correlations. The discrepancy can

Neumaier, Arnold

206

Rotary bulk solids divider  

DOE Patents (OSTI)

An apparatus for the disbursement of a bulk solid sample comprising, a gravity hopper having a top open end and a bottom discharge end, a feeder positioned beneath the gravity hopper so as to receive a bulk solid sample flowing from the bottom discharge end, and a conveyor receiving the bulk solid sample from the feeder and rotating on an axis that allows the bulk solid sample to disperse the sample to a collection station.

Maronde, Carl P. (McMurray, PA); Killmeyer, Jr., Richard P. (Pittsburgh, PA)

1992-01-01T23:59:59.000Z

207

Rotary drilling jar  

SciTech Connect

This patent describes an improved jar for use in freeing well tools and the like stuck in a well bore. The improvement comprises: tubular, inner mandrel means having a downwardly facing shoulder and having an annular groove in an exterior surface located relatively below the shoulder. The annular groove in the inner mandrel means tapers inwardly from an exterior surface of the inner mandrel means. The inner mandrel means are arranged for connection to a conduit when positioned in the well bore; and tubular, outer mandrel means encircling the inner mandrel means and arranged at a lower end for connection to the well to tool and having an upwardly facing abutment engageable with the downwardly facing shoulder.

Loeb, J.B.; Osborne, A.J.; Miglierini, R.A.

1987-05-05T23:59:59.000Z

208

Rotary slot dog  

SciTech Connect

A clamp or dog is disclosed which preferably comprises a slotted stepped cylindrical body which is inserted into a hole in a workpiece and then fastened to a base or fixture using a screw which is inserted through the slot. The stepped configuration provides an annular clamping surface which securely clamps the workpiece against the base or fixture. The slotted cylindrical configuration permits adjustment of the workpiece and retaining clamp in any direction, i.e., over 360.degree., relative to the mounting position of the screw in the base or fixture.

Cutburth, Ronald W. (Tracy, CA); Smauley, David A. (Livermore, CA)

1987-01-01T23:59:59.000Z

209

Optimizing Power Using Transformations  

E-Print Network (OSTI)

: The increasing demand for portable computing has elevated power consumption to be one of the most critical design parameters. A high-level synthesis system, HYPER-LP, is presented for minimizing power consumption in application specific datapath intensive CMOS circuits using a variety of architectural and computational transformations. The synthesis environment consists of high-level estimation of power consumption, a library of transformation primitives, and heuristic/probabilistic optimization search mechanisms for fast and efficient scanning of the design space. Examples with varying degree of computational complexity and structures are optimized and synthesized using the HYPER-LP system. The results indicate that more than an order of magnitude reduction in power can be achieved over current-day design methodologies while maintaining the system throughput; in some cases this can be accomplished while preserving or reducing the implementation area. 1.0 Introduction VLSI research a...

Anantha P. Chandrakasan; Miodrag Potkonjak; Renu Mehra; Jan Rabaey; Robert W. Brodersen

1995-01-01T23:59:59.000Z

210

Putting Economic Power In Distributed Power t  

U.S. Energy Information Administration (EIA)

Putting Economic Power in Distributed Power. A distributed electricity generation system, often called distributed power, usually consists of ...

211

International Power Engineering Research Collaborations  

E-Print Network (OSTI)

range from market mechanisms to renewable en- ergy integration and from specific power topics to inter- disciplinary projects. Index Terms Collaborative Research and Educa- tion, Renewable Energy, Market Mechanisms with foreign institutions in Spain, Brazil, China and Ma- laysia. The presentation discusses the objectives

Gross, George

212

Power Marketing  

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

Certificate Solicitations Benefit Review Energy Services Rates and Repayment WindHydro Integration Feasibility Study Send correspondence to: Power Marketing Manager Western...

213

Green Power Network: Past National Green Power Marketing Conference  

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

Fourth National Green Power Marketing Conference Fourth National Green Power Marketing Conference Key Ingredients for Successful Markets Held May 10-11, 1999 in Philadelphia, Pennsylvania The Fourth National Green Power Marketing Conference was organized to examine the current state of green-power marketing and to explore opportunities to improve on the success of green-power sales in both regulated and deregulated markets. The conference was co-sponsored by the U.S. Department of Energy, Electric Power Research Institute, Renewable Energy Alliance, and Edison Electric Institute. View all of the Conference Presentations in Microsoft PowerPoint 95 (PPT) or Adobe Acrobat PDF format. Format is noted with file sizes. REPORT SUMMARY Today, in regulated monopoly markets, more than 50 utilities offer "green pricing" to their customers, but competitive green power marketing is still in early evolution. After a year of competitive market activity, it has become clear that the rules and mechanisms established for electric industry restructuring are critical to the success of green power marketing. The Fourth National Green Power Conference examined the current state of green power marketing, identified key market and policy needs under electric industry restructuring, and explored opportunities to improve on the success of green power sales in both regulated and deregulated markets.

214

Power electronics cooling apparatus  

DOE Patents (OSTI)

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

Sanger, Philip Albert (Monroeville, PA); Lindberg, Frank A. (Baltimore, MD); Garcen, Walter (Glen Burnie, MD)

2000-01-01T23:59:59.000Z

215

Solar Power  

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

Solar Power Solar Power Project Opportunities Abound in the Region The WIPP site is receives abundant solar energy with 6-7 kWh/sq meter power production potential As the accompanying map of New Mexico shows, the WIPP site enjoys abundant year-round sunshine. With an average solar power production potential of 6-7 kWh/sq meter per day, one exciting project being studied for location at WIPP is a 30-50 MW Solar Power Tower: The American Solar Energy Society (ASES) is is a national trade association promoting solar energy as a clean source of electricity, and provides a comprehensive resource for additional information. DOE's Office of Energy Efficiency and Renewable Energy is also a comprehensive resource for more information on renewable energy.

216

Power system  

DOE Patents (OSTI)

A power system includes a prime mover, a transmission, and a fluid coupler having a selectively engageable lockup clutch. The fluid coupler may be drivingly connected between the prime mover and the transmission. Additionally, the power system may include a motor/generator drivingly connected to at least one of the prime mover and the transmission. The power-system may also include power-system controls configured to execute a control method. The control method may include selecting one of a plurality of modes of operation of the power system. Additionally, the control method may include controlling the operating state of the lockup clutch dependent upon the mode of operation selected. The control method may also include controlling the operating state of the motor/generator dependent upon the mode of operation selected.

Hickam, Christopher Dale (Glasford, IL)

2008-03-18T23:59:59.000Z

217

Advanced computational approaches for power system operations considering wind power and emission problem.  

E-Print Network (OSTI)

??[Truncated abstract] Nowadays, the electric power systems which are electrical and mechanical controlled systems play the fundamental role in the modern society. No one can (more)

Yao, Fang

2011-01-01T23:59:59.000Z

218

The unitary theory of the electrical powers  

E-Print Network (OSTI)

General physics approach is applied to analysis of power components in electrical systems under sinusoidal and non-sinusoidal conditions. Physical essence of active, reactive and distorting powers are determinate. It is shown that the all three powers are the different aspects of the same physical phenomenon: mechanical action per time of Coulomb forces or inertial forces.

Gheorghe Mihai

2009-04-07T23:59:59.000Z

219

The unitary theory of the electrical powers  

E-Print Network (OSTI)

General physics approach is applied to analysis of power components in electrical systems under sinusoidal and non-sinusoidal conditions. Physical essence of active, reactive and distorting powers are determinate. It is shown that the all three powers are the different aspects of the same physical phenomenon: mechanical action per time of Coulomb forces or inertial forces.

Mihai, Gheorghe

2009-01-01T23:59:59.000Z

220

Power Projects  

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

Power Projects Power Projects Contact SN Customers Environmental Review-NEPA Operations & Maintenance Planning & Projects Power Marketing Rates You are here: SN Home page > About SNR Power Projects Central Valley: In California's Central Valley, 18 dams create reservoirs that can store 13 million acre-feet of water. The project's 615 miles of canals irrigate an area 400 miles long and 45 miles wide--almost one third of California. Powerplants at the dams have an installed capacity of 2,099 megawatts and provide enough energy for 650,000 people. Transmission lines total about 865 circuit-miles. Washoe: This project in west-central Nevada and east-central California was designed to improve the regulation of runoff from the Truckee and Carson river systems and to provide supplemental irrigation water and drainage, as well as water for municipal, industrial and fishery use. The project's Stampede Powerplant has a maximum capacity of 4 MW.

Note: This page contains sample records for the topic "rotary mechanical power" 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

Wind Power | Open Energy Information  

Open Energy Info (EERE)

Wind Power Wind Power Jump to: navigation, search Wind Power WIndfarm.Sunset.jpg Wind power is a form of solar energy.[1] Wind is caused by the uneven heating of the atmosphere by the sun, variations in the earth's surface, and rotation of the earth. Mountains, bodies of water, and vegetation all influence wind flow patterns[2], [3]. Wind energy (or wind power) describes the process by which wind is used to generate electricity. Wind turbines convert the energy in wind to electricity by rotating propeller-like blades around a rotor. The rotor turns the drive shaft, which turns an electric generator.[2] Three key factors affect the amount of energy a turbine can harness from the wind: wind speed, air density, and swept area.[4] Mechanical power can also be utilized directly for specific tasks such as

222

Sandia National Laboratories: Careers: Mechanical Engineering  

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

Mechanical Engineering Mechanical Engineering Engineering photo Sandia mechanical engineers design and develop advanced components and systems for national-defense programs, homeland security, and other applications. Mechanical engineers at Sandia work on design, analysis, manufacturing, and test activities in many areas, including nuclear weapons and power, renewable energy, intelligent machines, robotics, pulsed power, missile defense, remote sensing, advanced manufacturing, and micro- and nanosystems. Sandia mechanical engineers are an integral part of multidisciplinary teams that employ state-of-the-art technologies, such as sophisticated software tools for design, analysis, modeling, and simulation; micro- and nanotechnologies; and advanced materials, materials processing, and fabrication.

223

Definition: Wind power | Open Energy Information  

Open Energy Info (EERE)

Wind power Wind power Jump to: navigation, search Dictionary.png Wind power The amount of power available to a wind turbine depends on: air density, wind speed and the swept area of the rotor. While the power is proportional to air density and swept area, it varies with the cube of wind speed, so small changes in wind speed can have a relatively large impact on wind power.[1] View on Wikipedia Wikipedia Definition Wind power is the conversion of wind energy into a useful form of energy, such as using wind turbines to make electrical power, windmills for mechanical power, windpumps for water pumping or drainage, or sails to propel ships. Large wind farms consist of hundreds of individual wind turbines which are connected to the electric power transmission network. Offshore wind is steadier and stronger than on land, and offshore farms

224

Green Power Network: Green Power Marketing  

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

to main content U.S. Department of Energy Energy Efficiency and Renewable Energy Green Power Network About the GPN Green Power Markets Buying Green Power Onsite Renewable...

225

Power inverters  

DOE Patents (OSTI)

Power inverters include a frame and a power module. The frame has a sidewall including an opening and defining a fluid passageway. The power module is coupled to the frame over the opening and includes a substrate, die, and an encasement. The substrate includes a first side, a second side, a center, an outer periphery, and an outer edge, and the first side of the substrate comprises a first outer layer including a metal material. The die are positioned in the substrate center and are coupled to the substrate first side. The encasement is molded over the outer periphery on the substrate first side, the substrate second side, and the substrate outer edge and around the die. The encasement, coupled to the substrate, forms a seal with the metal material. The second side of the substrate is positioned to directly contact a fluid flowing through the fluid passageway.

Miller, David H. (Redondo Beach, CA); Korich, Mark D. (Chino Hills, CA); Smith, Gregory S. (Woodland Hills, CA)

2011-11-15T23:59:59.000Z

226

Power Right. Power Smart. Efficient Computer Power Supplies and Monitors. |  

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

Power Right. Power Smart. Efficient Computer Power Supplies and Power Right. Power Smart. Efficient Computer Power Supplies and Monitors. Power Right. Power Smart. Efficient Computer Power Supplies and Monitors. March 10, 2009 - 6:00am Addthis John Lippert Power supplies convert the AC power that you get from your electric company into the DC power consumed by most electronics, including your computer. We expect our power supplies to be safe, reliable, and durable. If they meet those criteria, then they're all alike, except for cost, right? Well, not exactly. You see, there's one other important feature that sets them apart: efficiency. And I don't know about you, but I believe waste is bad. For me, high efficiency is one important feature that's needed for something to be high quality. So isn't it ridiculous that most power

227

Power Right. Power Smart. Efficient Computer Power Supplies and Monitors. |  

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

Power Right. Power Smart. Efficient Computer Power Supplies and Power Right. Power Smart. Efficient Computer Power Supplies and Monitors. Power Right. Power Smart. Efficient Computer Power Supplies and Monitors. March 10, 2009 - 6:00am Addthis John Lippert Power supplies convert the AC power that you get from your electric company into the DC power consumed by most electronics, including your computer. We expect our power supplies to be safe, reliable, and durable. If they meet those criteria, then they're all alike, except for cost, right? Well, not exactly. You see, there's one other important feature that sets them apart: efficiency. And I don't know about you, but I believe waste is bad. For me, high efficiency is one important feature that's needed for something to be high quality. So isn't it ridiculous that most power

228

Green Power Network: Past National Green Power Marketing Conference  

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

Sixth National Green Power Marketing Conference Sixth National Green Power Marketing Conference Opportunity in the Midst of Uncertainty Held July 30 - August 1, 2001 in Portland, OR Please visit EPRI to download your copy of Sixth National Green Power Marketing Conference Summary (PDF 8.8 MB) Conference speakers reviewed the past year's green power highlights, analyzed utility green pricing programs, presented insights into how to target green power demand, examined green certificate trading and tracking mechanisms, and described the best ways to market and sell green power. In addition, First Annual Green Power Leadership Awards were presented to recognize those who are significantly advancing the development of renewable electricity sources in the marketplace. We thank the following conference sponsors: the Center for Resource Solutions, Enron Power Marketing, Inc., E Source, Green Mountain Energy Company, and PacifiCorp Power Marketing, Inc. Event sponsors included PG&E National Energy Group, Portland General Electric, Batdorf & Bronson Coffee Roasters, Fetzer Vineyards, and New Belgium Brewing Company

229

Compliant mechanisms  

E-Print Network (OSTI)

The motivation for this work has been a variety of motions like navigation of pipelines, insertion operations in assembly, and gripping actions, which require the adaptation of the mechanism to the external constraints, rather than avoid them. To this effect, efforts have been made in building mechanisms that obtain the required degrees of freedom through deformations rather than explicit joints in them. Although the use of many joints provides the required number of degrees of freedom, it does so at the cost of making the system very bulky and complex. With the advent of new polymers, the possibility of building joint-free mechanisms that fulfil the requirements of adaptation has increased. Based on this approach, a Magneto Active Polymer (MAP) material has been developed here at the Texas A\\&M University, in which the actuation is performed by the conversion of electromagnetic energy into mechanical energy. The initial experimentation has proved the vast potential of the use of such a material and a few mechanisms like a magneto active peristaltic pump, have been designed and tested for the first time using this material. In this mechanism, the pumping action is obtained when a moving magnetic field produces peristaltic waves in the magneto active material shaped as a tube. Also for the first time, experiments have been conducted to analyze the response of the MAP material to a pulsating magnetic field with the intent of using the experimental results to develop a model of the MAP. In developing the design for the peristaltic pump and other conceptual models described in this thesis, ideas have been drawn from the different modes of locomotion and actuators present in lower organisms. These have been good sources of inspiration for the work done in this thesis and they have been documented in detail.

Venkataraghavan, Janarthanan T

2001-01-01T23:59:59.000Z

230

Power Supplies  

Science Conference Proceedings (OSTI)

Table 2   Characteristics of the four major power sources for induction heating...state 180 Hz to 50 kHz 1 kW to 2 MW 75??95 No standby current; high efficiency; no moving parts;

231

Locking mechanism  

DOE Patents (OSTI)

The invention is a motorized linkage for operating a door strike. A six volt power source, controlled by a security code, rotates a small electric motor when a proper security code is given. The motor rotates a shaft which engages a coil spring. This moves a locking cam. When a catch on the locking cam separates from the locking lever catch, the latch bolt keeper may be manipulated by a user.

Williams, Gary L. (428 E. Third Avenue, Kennewick, WA 99336); Goin, Jr., Jesse L. (480 Kau Trail, Pasco, WA 99301); Kirby, Patrick G. (1010 W. Fifteenth Pl., Kennewick, WA 99337); McKenna, John P. (Rt. 3, Box 1818, Benton City, WA 99320)

1997-01-01T23:59:59.000Z

232

Definition: Rated power | Open Energy Information  

Open Energy Info (EERE)

Definition Definition Edit with form History Facebook icon Twitter icon » Definition: Rated power Jump to: navigation, search Dictionary.png Rated power The power output of a device under specific or nominal operating conditions[1] View on Wikipedia Wikipedia Definition In electrical and electronic engineering, the power rating of a device is a guideline set by the manufacturer as a maximum power to be used with that device. This limit is usually set somewhat lower than the level where the device will be damaged, to allow a margin of safety. In devices which primarily dissipate electric power or convert it into mechanical power, such as resistors, electric motors, and speakers, the power rating given is usually the maximum power that can be safely dissipated by the

233

TAPO: Thermal-aware power optimization techniques for servers and data centers  

Science Conference Proceedings (OSTI)

A large portion of the power consumption of data centers can be attributed to cooling. In dynamic thermal management mechanisms for data centers and servers, thermal setpoints are typically chosen statically and conservatively, which leaves significant ... Keywords: power leakage power, TAPO, thermal aware power optimization techniques, data centers, server centers, power consumption, dynamic thermal management mechanisms, thermal setpoints, power budget, heating ventilation and air conditioning, HVAC, circuit leakage power

Wei Huang; M. Allen-Ware; J. B. Carter; E. Elnozahy; H. Hamann; T. Keller; C. Lefurgy; Jian Li; K. Rajamani; J. Rubio

2011-07-01T23:59:59.000Z

234

Acceleration Mechanisms  

E-Print Network (OSTI)

Glossary I. Background and context of the subject II. Stochastic acceleration III. Resonant scattering IV. Diffusive shock acceleration V. DSA at multiple shocks VI. Applications of DSA VII. Acceleration by parallel electric fields VIII. Other acceleration mechanisms IX. Future directions X. Appendix: Quasilinear equations XI. Bibliography

Melrose, D B

2009-01-01T23:59:59.000Z

235

Power superconducting power transmission cable  

DOE Patents (OSTI)

The present invention is for a compact superconducting power transmission cable operating at distribution level voltages. The superconducting cable is a conductor with a number of tapes assembled into a subconductor. These conductors are then mounted co-planarly in an elongated dielectric to produce a 3-phase cable. The arrangement increases the magnetic field parallel to the tapes thereby reducing ac losses.

Ashworth, Stephen P. (Cambridge, GB)

2003-01-01T23:59:59.000Z

236

NUT SCREW MECHANISMS  

DOE Patents (OSTI)

A reactor control mechanism is described wherein the control is achieved by the partial or total withdrawal of the fissile material which is in the form of a fuel rod. The fuel rod is designed to be raised and lowered from the reactor core area by means of two concentric ball nut and screw assemblies that may telescope one within the other. These screw mechanisms are connected through a magnetic clutch to a speed reduction gear and an accurately controllable prime motive source. With the clutch energized, the fuel rod may be moved into the reactor core area, and fine adjustments may be made through the reduction gearing. However, in the event of a power failure or an emergency signal, the magnetic clutch will become deenergized, and the fuel rod will drop out of the core area by the force of gravity, thus shutting down the operation of the reactor.

Glass, J.A.F.

1958-07-01T23:59:59.000Z

237

Nuclear Power  

E-Print Network (OSTI)

The world of the twenty first century is an energy consuming society. Due to increasing population and living standards, each year the world requires more energy and new efficient systems for delivering it. Furthermore, the new systems must be inherently safe and environmentally benign. These realities of today's world are among the reasons that lead to serious interest in deploying nuclear power as a sustainable energy source. Today's nuclear reactors are safe and highly efficient energy systems that offer electricity and a multitude of co-generation energy products ranging from potable water to heat for industrial applications. The goal of the book is to show the current state-of-the-art in the covered technical areas as well as to demonstrate how general engineering principles and methods can be applied to nuclear power systems.

Tsvetkov, Pavel

2010-08-01T23:59:59.000Z

238

Power supply  

SciTech Connect

An electric power supply employs a striking means to initiate ferroelectric elements which provide electrical energy output which subsequently initiates an explosive charge which initiates a second ferroelectric current generator to deliver current to the coil of a magnetic field current generator, creating a magnetic field around the coil. Continued detonation effects compression of the magnetic field and subsequent generation and delivery of a large output current to appropriate output loads.

Hart, Edward J. (Albuquerque, NM); Leeman, James E. (Albuquerque, NM); MacDougall, Hugh R. (Albuquerque, NM); Marron, John J. (Albuquerque, NM); Smith, Calvin C. (Amarillo, TX)

1976-01-01T23:59:59.000Z

239

Power Search  

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

You are here: Find a Car Home > Power Search You are here: Find a Car Home > Power Search Power Search Expand any feature by selecting its title bar. Choose as many or as few features as you like. Model Year From: 2015 2014 2013 2012 2011 2010 2009 2008 2007 2006 2005 2004 2003 2002 2001 2000 1999 1998 1997 1996 1995 1994 1993 1992 1991 1990 1989 1988 1987 1986 1985 1984 To: 2015 2014 2013 2012 2011 2010 2009 2008 2007 2006 2005 2004 2003 2002 2001 2000 1999 1998 1997 1996 1995 1994 1993 1992 1991 1990 1989 1988 1987 1986 1985 1984 MSRP Under $15,000 $15,000-$20,000 $20,000-$25,000 $25,000-$30,000 $30,000-$35,000 $35,000-$40,000 $40,000-$45,000 $45,000-$50,000 $50,000-$55,000 $55,000-$60,000 $60,000-$65,000 $65,000-$70,000 $70,000-$75,000 $75,000-$80,000 $80,000-$85,000 Over $85,000 - OR - Minimum: Select... $5,000 $6,000 $7,000 $8,000 $9,000 $10,000 $11,000

240

Internal combustion electric power hybrid power plant  

SciTech Connect

An internal combustion-electric motor hybrid power plant for an automotive vehicle is disclosed. The power plant includes an internal combustion engine and a direct current electric motor generator which are connected to a drive shaft for the vehicle. A clutch mechanism is provided to connect the internal combustion engine, the direct current electric motor generator and the drive shaft for selectively engaging and disengaging the drive shaft with the internal combustion engine and the motor generator. A storage battery is electrically connected to the motor generator to supply current to and receive current therefrom. Thermoelectric semi-conductors are arranged to be heated by the waste heat of the internal combustion engine. These thermoelectric semi-conductors are electrically connected to the battery to supply current thereto. The thermoelectric semi-conductors are mounted in contact with the outer surfaces of the exhaust pipe of the internal combustion engine and also with the outer surfaces of the cylinder walls of the engine.

Cummings, T.A.

1979-04-10T23:59:59.000Z

Note: This page contains sample records for the topic "rotary mechanical power" 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

Microsoft PowerPoint - FLC_MidCon_0908_TCAnderson.ppt [Compatibility Mode]  

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

in in a Teapot Technology in a Teapot Thomas C. Anderson Chief Scientist Chief Scientist Rocky Mountain Oilfield Testing Center Overview of New Methods for Finding and Extracting Oil in an Old Stripper Field at Teapot Dome, Wyoming How Can New Technology Help Old Fields? * Reduce Operating Costs - Electrical power consumption - Reliability and Maintenance (less down-time) * Increase Reserves - Missed reservoirs - behind pipe; deeper zones - Untapped fault blocks Better reser oir characteri ation - Better reservoir characterization * Increase Daily Production Rate Overcome formation damage - Overcome formation damage - Improved pump efficiency Outline * How Can New Technology Help Old Fields? * What is RMOTC? * New Technologies for Old Fields Tested at RMOTC: - Drilling: * rotary steerable systems ti

242

Sequoia earns Popular Mechanics 2012 Breakthrough Award | National...  

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

earns Popular Mechanics 2012 Breakthrough Award | National Nuclear Security Administration Our Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear Navy...

243

Powder Processing and Mechanical Properties - Programmaster.org  

Science Conference Proceedings (OSTI)

Oct 18, 2010 ... The ball milling of powders has become a powerful method to synthesize metastable structures. Mechanical milling - the ball milling of single...

244

Towards and industrial ecosystem for power MEMS  

E-Print Network (OSTI)

This thesis is concerned with the commercial applications of MEMS (Micro-Electro-Mechanical Systems) manufacturing processes to advanced energy technologies. This field of engineering has come to be known as Power MEMS. ...

Havel, Timothy Franklin

2007-01-01T23:59:59.000Z

245

Harvesting mechanical energy for ambient intelligent devices  

Science Conference Proceedings (OSTI)

This paper deals with mechanical energy harvesters, power management and energy storage devices as important building blocks for wireless autonomous sensor networks. The basic task of the harvester is to convert vibrational into electrical energy. As ... Keywords: Electromagnetic, Electrostatic, Energy harvester, Energy storage, Impedance matching, Piezoelectric, Power management

Bert Op Het Veld; Dennis Hohlfeld; Valer Pop

2009-03-01T23:59:59.000Z

246

Design of a Solar Thermal Powered Cooling System.  

E-Print Network (OSTI)

??Abstract The main objective of the thesis was to design a mechanical structure for a desiccant evaporative cooling, to apply solar thermal powered air conditioning (more)

Hurri, Olli

2011-01-01T23:59:59.000Z

247

Low Power Design Low PowerLow Power  

E-Print Network (OSTI)

, correlations among system state transitions #12;Low Power Design USC/LPCAD Page 11 USCUSC Low PowerLow Power for the requestsIncoming rates for the requests 21,rr 12 ,rr, :, : State transition ratesState transition rates OS and hardware Abstract, hierarchical finite-state machine Each state represents power

Pedram, Massoud

248

Power management system  

DOE Patents (OSTI)

A method of managing power resources for an electrical system of a vehicle may include identifying enabled power sources from among a plurality of power sources in electrical communication with the electrical system and calculating a threshold power value for the enabled power sources. A total power load placed on the electrical system by one or more power consumers may be measured. If the total power load exceeds the threshold power value, then a determination may be made as to whether one or more additional power sources is available from among the plurality of power sources. At least one of the one or more additional power sources may be enabled, if available.

Algrain, Marcelo C. (Peoria, IL); Johnson, Kris W. (Washington, IL); Akasam, Sivaprasad (Peoria, IL); Hoff, Brian D. (East Peoria, IL)

2007-10-02T23:59:59.000Z

249

Solar powered desalination system  

E-Print Network (OSTI)

1.13: California Power Generation by Source31for hydro- electric power generation would be reached inother end users include the power generation industry (4%),

Mateo, Tiffany Alisa

2011-01-01T23:59:59.000Z

250

Solar powered desalination system  

E-Print Network (OSTI)

2008, uses concentrated solar power to split water. Figurethe main reason the potential for solar power is boundless.a clean energy source, solar power is inexhaustible, fairly

Mateo, Tiffany Alisa

2011-01-01T23:59:59.000Z

251

Southwestern Power Administration  

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

POTC Home Courses Instructors NERC Continuing Education Virtual University Power Operations Training Center You'll find the "Power" of learning at Southwestern's Power Operations...

252

Southwestern Power Administration  

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

Schedules Skip Navigation Links Excess Energy Hydro Peaking Power Hydro Power and Energy Sold to Sam Rayburn Dam Electric Cooperative (Rayburn) Hydro Power and Energy Sold to Sam...

253

Low-power micromachined microsystems (invited talk)  

Science Conference Proceedings (OSTI)

Micromachined microsystems and Micro Electro Mechanical Systems (MEMS) have made possible the development of highly accurate and portable sensors and instrument for a variety of applications in the health care, industrial, consumer products, avionics, ... Keywords: MEMS, energy harvesting, low-power, micromachining, microsystems, power sources

Khalil Najafi

2000-08-01T23:59:59.000Z

254

Hybrid-Intelligent POWER HI-POWER  

Science Conference Proceedings (OSTI)

... T T T A A A SMART-T Current Situation Current Situation ... Page 10. 22 Power Grid Plug & Play architecture Multiple power sources Renewables ...

2013-09-22T23:59:59.000Z

255

POWER REACTOR  

DOE Patents (OSTI)

A fast nuclear reactor system ls described for producing power and radioactive isotopes. The reactor core is of the heterogeneous, fluid sealed type comprised of vertically arranged elongated tubular fuel elements having vertical coolant passages. The active portion is surrounded by a neutron reflector and a shield. The system includes pumps and heat exchangers for the primary and secondary coolant circuits. The core, primary coolant pump and primary heat exchanger are disposed within an irapenforate tank which is filled with the primary coolant, in this case a liquid metal such as Na or NaK, to completely submerge these elements. The tank is completely surrounded by a thick walled concrete shield. This reactor system utilizes enriched uranium or plutonium as the fissionable material, uranium or thorium as a diluent and thorium or uranium containing less than 0 7% of the U/sup 235/ isotope as a fertile material.

Zinn, W.H.

1958-07-01T23:59:59.000Z

256

Power oscillator  

DOE Patents (OSTI)

An oscillator includes an amplifier having an input and an output, and an impedance transformation network connected between the input of the amplifier and the output of the amplifier, wherein the impedance transformation network is configured to provide suitable positive feedback from the output of the amplifier to the input of the amplifier to initiate and sustain an oscillating condition, and wherein the impedance transformation network is configured to protect the input of the amplifier from a destructive feedback signal. One example of the oscillator is a single active element device capable of providing over 70 watts of power at over 70% efficiency. Various control circuits may be employed to match the driving frequency of the oscillator to a plurality of tuning states of the lamp.

Gitsevich, Aleksandr (Montgomery Village, MD)

2001-01-01T23:59:59.000Z

257

Power plant  

SciTech Connect

A two stroke internal combustion engine is described that has at least one cylinder within which a piston reciprocates. The engine is joined to a gearbox which includes a ring gear. A pair of gears having diameters half that of the ring gear move within the latter. At least one of the pair of gears is connected to a piston by a pin extending between the piston and the periphery of said gear. An additional pair of gears are fixed to respective ones of the first-mentioned gear pair and are operatively joined to a pinion to which a drive shaft is secured. A turbine and filter arrangement is positioned on the side of the engine opposite the gearbox whereby exhaust gases from the engine are directed to the turbine to develop power at an output drive shaft joined to the turbine and to filter pollutants from the gases.

Finn, H.I. Jr.

1978-10-24T23:59:59.000Z

258

Thrifty BTB: A comprehensive solution for dynamic power reduction in branch target buffers  

Science Conference Proceedings (OSTI)

We propose Thrifty BTB, a mechanism to reduce the dynamic power dissipated by the BTB. We studied two mechanisms that reduce dynamic power dissipation. The first one is a serial-BTB configuration. The second mechanism is the filter-BTB, a combination ... Keywords: Branch prediction, Branch target buffer, Dynamic power, Microarchitecture

Roger Kahn; Shlomo Weiss

2008-11-01T23:59:59.000Z

259

Stakeholder Engagement and Outreach: What Is Wind Power?  

Wind Powering America (EERE)

What Is Wind Power? What Is Wind Power? A three-bladed wind turbine with the internal components visible. Six turbines in a row are electrically connected to the power grid. Wind Power Animation This aerial view of a wind turbine plant shows how a group of wind turbines can make electricity for the utility grid. The electricity is sent through transmission and distribution lines to homes, businesses, schools, and so on. View the wind turbine animation to see how a wind turbine works or take a look inside. Wind power or wind energy describes the process by which the wind is used to generate mechanical power or electricity. Wind turbines convert the kinetic energy in the wind into mechanical power. This mechanical power can be used for specific tasks (such as grinding grain or pumping water), or

260

Electric Power Annual  

U.S. Energy Information Administration (EIA)

Electric Power Sector ; Period Total (all sectors) Electric Utilities Independent Power Producers Commercial Sector Industrial Sector; Annual Totals: ...

Note: This page contains sample records for the topic "rotary mechanical power" 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

Electric Power Metrology Portal  

Science Conference Proceedings (OSTI)

... Electric Power Metrology and the Smart Grid Our country's way of life depends on the electric power distribution system. ...

2012-12-26T23:59:59.000Z

262

Putting Economic Power in Distributed Power  

Reports and Publications (EIA)

Electric Power Research Institute's Distributed Resources Week 1997 (October 22, 1997)AUTHOR: John Herbert

Information Center

1997-10-22T23:59:59.000Z

263

Combined Heat and Power | Open Energy Information  

Open Energy Info (EERE)

Combined Heat and Power Combined Heat and Power Jump to: navigation, search All power plants release a certain amount of heat during electricity generation. This heat can be used to serve thermal loads, such as building heating and hot water requirements. The simultaneous production of electrical (or mechanical) and useful thermal power from a single source is referred to as a combined heat and power (CHP) process, or cogeneration. Contents 1 Combined Heat and Power Basics 2 Fuel Types 2.1 Rural Resources 2.2 Urban Resources 3 CHP Technologies 3.1 Steam Turbine 3.2 Gas Turbine 3.3 Microturbine 3.4 Reciprocating Engine 4 Example CHP Systems[7] 4.1 University of Missouri (MU) 4.2 Princeton University 4.3 University of Iowa 4.4 Cornell University 5 Glossary 6 References Combined Heat and Power Basics

264

INDEXING MECHANISM  

DOE Patents (OSTI)

A device is presented for loading and unloading fuel elements containing material fissionable by neutrons of thermal energy. The device comprises a combination of mechanical features Including a base, a lever pivotally attached to the base, an Indexing plate on the base parallel to the plane of lever rotation and having a plurality of apertures, the apertures being disposed In rows, each aperture having a keyway, an Index pin movably disposed to the plane of lever rotation and having a plurality of apertures, the apertures being disposed in rows, each aperture having a keyway, an index pin movably disposed on the lever normal to the plane rotation, a key on the pin, a sleeve on the lever spaced from and parallel to the index pin, a pair of pulleys and a cable disposed between them, an open collar rotatably attached to the sleeve and linked to one of the pulleys, a pin extending from the collar, and a bearing movably mounted in the sleeve and having at least two longitudinal grooves in the outside surface.

Kock, L.J.

1959-09-22T23:59:59.000Z

265

Wave Power Demonstration Project at Reedsport, Oregon  

SciTech Connect

Ocean wave power can be a significant source of large?scale, renewable energy for the US electrical grid. The Electrical Power Research Institute (EPRI) conservatively estimated that 20% of all US electricity could be generated by wave energy. Ocean Power Technologies, Inc. (OPT), with funding from private sources and the US Navy, developed the PowerBuoy? to generate renewable energy from the readily available power in ocean waves. OPT's PowerBuoy converts the energy in ocean waves to electricity using the rise and fall of waves to move the buoy up and down (mechanical stroking) which drives an electric generator. This electricity is then conditioned and transmitted ashore as high?voltage power via underwater cable. OPT's wave power generation system includes sophisticated techniques to automatically tune the system for efficient conversion of random wave energy into low cost green electricity, for disconnecting the system in large waves for hardware safety and protection, and for automatically restoring operation when wave conditions normalize. As the first utility scale wave power project in the US, the Wave Power Demonstration Project at Reedsport, OR, will consist of 10 PowerBuoys located 2.5 miles off the coast. This U.S. Department of Energy Grant funding along with funding from PNGC Power, an Oregon?based electric power cooperative, was utilized for the design completion, fabrication, assembly and factory testing of the first PowerBuoy for the Reedsport project. At this time, the design and fabrication of this first PowerBuoy and factory testing of the power take?off subsystem are complete; additionally the power take?off subsystem has been successfully integrated into the spar.

Mekhiche, Mike [Principal Investigator] [Principal Investigator; Downie, Bruce [Project Manager] [Project Manager

2013-10-21T23:59:59.000Z

266

Reduction of iron-oxide-carbon composites: part II. Rates of reduction of composite pellets in a rotary hearth furnace simulator  

SciTech Connect

A new ironmaking concept is being proposed that involves the combination of a rotary hearth furnace (RHF) with an iron-bath smelter. The RHF makes use of iron-oxide-carbon composite pellets as the charge material and the final product is direct-reduced iron (DRI) in the solid or molten state. This part of the research includes the development of a reactor that simulated the heat transfer in an RHF. The external heat-transport and high heating rates were simulated by means of infrared (IR) emitting lamps. The reaction rates were measured by analyzing the off-gas and computing both the amount of CO and CO{sub 2} generated and the degree of reduction. The reduction times were found to be comparable to the residence times observed in industrial RHFs. Both artificial ferric oxide (PAH) and naturally occurring hematite and taconite ores were used as the sources of iron oxide. Coal char and devolatilized wood charcoal were the reductants. Wood charcoal appeared to be a faster reductant than coal char. However, in the PAH-containing pellets, the reverse was found to be true because of heat-transfer limitations. For the same type of reductant, hematite-containing pellets were observed to reduce faster than taconite-containing pellets because of the development of internal porosity due to cracking and fissure formation during the Fe2O{sub 3}-to-Fe3O{sub 4} transition. This is, however, absent during the reduction of taconite, which is primarily Fe3O{sub 4}. The PAH-wood-charcoal pellets were found to undergo a significant amount of swelling at low-temperature conditions, which impeded the external heat transport to the lower layers. If the average degree of reduction targeted in an RHF is reduced from 95 to approximately 70 pct by coupling the RHF with a bath smelter, the productivity of the RHF can be enhanced 1.5 to 2 times. The use of a two- or three-layer bed was found to be superior to that of a single layer, for higher productivities.

Halder, S.; Fruehan, R.J. [Praxair Inc., Tonawanda, NY (United States). Praxair Technological Center

2008-12-15T23:59:59.000Z

267

Power-Pro: Programmable Power Management Architecture  

E-Print Network (OSTI)

This paper presents Power-Pro architecture (Programmable Power Management Architecture), a novel processor architecture for power reduction. Power-Pro architecture has following two functionalities, (i) Supply voltage and clock frequency can be dynamically varied, (ii) Active data-path width can be dynamically adjusted to requirement of application programs. For the application programs which require less performance or less data-path width, Power-Pro architecture realize dramatic power reduction. I. Introduction With recent popularizations in portable, batterypowered devices such as digital cellular telephones and personal digital assistants, minimizing power consumption of VLSI circuits becomes more important. As the system level power reduction techniques, the choice of optimal supply voltage(V DD ) and optimal active data-path width have strong impacts. In this paper we propose novel processor architecture Power-Pro [2] which can vary VDD and active data-path width of processor ...

Tohru Ishihara; Hiroto Yasuura; Programmable Power Management

1998-01-01T23:59:59.000Z

268

EE 3410 Electric Power Instructor: Ernest Mendrela  

E-Print Network (OSTI)

generator, (d) linear motor 1.2. Rotary system Two-pole machine with a single coil (phase) is shown in Fig.1 salient-pole rotor permanent magnet Single-coil stator winding f e (b) A1 A2 Coil Fig.1.3 Cylindrical have windings. The stator winding is a 3-phase winding and is sometimes called the armature winding

Koppelman, David M.

269

NREL: Water Power Research - Economic and Power System Modeling and  

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

Economic and Power System Modeling and Analysis Economic and Power System Modeling and Analysis NREL's Economic Analysis and power system modeling integrates data from device deployment and programmatic research into deployment and scenario models to quantify the economic and societal benefits of developing cost-competitive marine and hydrokinetic systems. It also identifies policy mechanisms, market designs, and supply chain needs to support various deployment scenarios, provide information and training to potential members of the marine and hydrokinetic (MHK) industry and effectively collaborate with all associated stakeholders. JEDI Modeling NREL worked with industry members to develop and provide public access to an easy-to-use input-output model that estimates the jobs and economic development impacts (JEDI) of MHK projects in the United States. The JEDI

270

Electric power 2007  

SciTech Connect

Subjects covered include: power industry trends - near term fuel strategies - price/quality/delivery/opportunity; generating fleet optimization and plant optimization; power plant safety and security; coal power plants - upgrades and new capacity; IGCC, advanced combustion and CO{sub 2} capture technologies; gas turbine and combined cycle power plants; nuclear power; renewable power; plant operations and maintenance; power plant components - design and operation; environmental; regulatory issues, strategies and technologies; and advanced energy strategies and technologies. The presentations are in pdf format.

NONE

2007-07-01T23:59:59.000Z

271

ADVANCED POWER SYSTEMS ASH BEHAVIOR IN POWER SYSTEMS  

SciTech Connect

The overall goal of this initiative is to develop fundamental knowledge of ash behavior in power systems for the purpose of increasing power production efficiency, reducing operation and maintenance costs, and reducing greenhouse gas emissions into the atmosphere. The specific objectives of this initiative focus primarily on ash behavior related to advanced power systems and include the following: ? Determine the current status of the fundamental ash interactions and deposition formation mechanisms as already reported through previous or ongoing projects at the EERC or in the literature. ? Determine sintering mechanisms for temperatures and particle compositions that are less well known and remain for the most part undetermined. ? Identify the relationship between the temperature of critical viscosity (Tcv ) as measured in a viscometer and the crystallization occurring in the melt. ? Perform a literature search on the use of heated-stage microscopy (HSM) for examining in situ ash-sintering phenomena and then validate the use of HSM in the determination of viscosity in spherical ash particles. ? Ascertain the formation and stability of specific mineral or amorphous phases in deposits typical of advanced power systems. ? Evaluate corrosion for alloys being used in supercritical combustion systems.

CHRISTOPHER J. ZYGARLICKE; DONALD P. MCCOLLOR; JOHN P. KAY; MICHAEL L. SWANSON

1998-09-01T23:59:59.000Z

272

ADVANCED POWER SYSTEMS ASH BEHAVIOR IN POWER SYSTEMS  

Science Conference Proceedings (OSTI)

The overall goal of this initiative is to develop fundamental knowledge of ash behavior in power systems for the purpose of increasing power production efficiency, reducing operation and maintenance costs, and reducing greenhouse gas emissions into the atmosphere. The specific objectives of this initiative focus primarily on ash behavior related to advanced power systems and include the following: ? Determine the current status of the fundamental ash interactions and deposition formation mechanisms as already reported through previous or ongoing projects at the EERC or in the literature. ? Determine sintering mechanisms for temperatures and particle compositions that are less well known and remain for the most part undetermined. ? Identify the relationship between the temperature of critical viscosity (Tcv ) as measured in a viscometer and the crystallization occurring in the melt. ? Perform a literature search on the use of heated-stage microscopy (HSM) for examining in situ ash-sintering phenomena and then validate the use of HSM in the determination of viscosity in spherical ash particles. ? Ascertain the formation and stability of specific mineral or amorphous phases in deposits typical of advanced power systems. ? Evaluate corrosion for alloys being used in supercritical combustion systems.

CHRISTOPHER J. ZYGARLICKE; DONALD P. MCCOLLOR; JOHN P. KAY; MICHAEL L. SWANSON

1998-09-01T23:59:59.000Z

273

FUTURE POWER GRID INITIATIVE Market Design Analysis Tool  

E-Print Network (OSTI)

FUTURE POWER GRID INITIATIVE Market Design Analysis Tool OBJECTIVE Power market design plays a critical role in the outcomes related to power system reliability and market efficiency. However, translation of market rules/designs into the complex mathematical market clearing mechanism is not a trivial

274

Routing for power minimization in the speed scaling model  

Science Conference Proceedings (OSTI)

We study network optimization that considers power minimization as an objective. Studies have shown that mechanisms such as speed scaling can significantly reduce the power consumption of telecommunication networks by matching the consumption of each ... Keywords: power saving, routing, speed scaling, wireline networks

Matthew Andrews; Antonio Fernndez Anta; Lisa Zhang; Wenbo Zhao

2012-02-01T23:59:59.000Z

275

Physicalism versus quantum mechanics  

E-Print Network (OSTI)

Foundations of Quantum Mechanics. (Princeton UniversityMind, Matter, and Quantum Mechanics, (Springer, Berlin & NewMindful Universe: Quantum Mechanics and the Participating

Stapp, Henry P; Theoretical Physics Group; Physics Division

2009-01-01T23:59:59.000Z

276

PowerPoint Presentation  

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

1 1 HINS R&D: a possible Project X Front End Frequency 325 MHz Total length ~ 55 m SSR1 (β=0.22) SSR2 (β=0.4) RT -CHSR MEBT RFQ IS W (MeV) 2.5 0.050 60 30 10 Beam Line Elements: 19 Conventional RT Cavities 29 SC Spoke Cavities and 3 Cryomodules 42 SC Focusing Solenoids RF Power Elements: one 325 MHz Klystron/Modulator one 400 kW RFQ FVM 19 ~20 kW FVM/Fast Tuning for RT Section 29 ~20-120 kW FVM/Fast Tuning for SC Section Power Supplies, quench protection, beam diagnostic,.. Fermilab 2 * HINS R&D Phase: Proof of innovative approach to high intensity beam acceleration ! - 2007-2011/12 R&D period - Prove, Develop & Bui ld Front-End in Meson Bldg. at 325 MHz (0-60 MeV) since much of the technical complexity is in the FE Mechanical/RF Systems * Demonstrate for the first time

277

Power Tower Systems for Concentrating Solar Power  

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

In power tower concentrating solar power systems, numerous large, flat, sun-tracking mirrors, known as heliostats, focus sunlight onto a receiver at the top of a tall tower. A heat-transfer fluid...

278

Resonant Power Conditioning and Compact Pulse Power ...  

Science Conference Proceedings (OSTI)

... (FEEDBACK) HV RECTIFIER AND FILTER NETWORK ... Los Alamos High Frequency Polyphase Resonant Power Conditioning ... 30 KW Loss ...

2012-10-31T23:59:59.000Z

279

Mechanized roadway driving and roofbolting experiment successful in German mine. [Salts also act as anchors for steel mesh  

Science Conference Proceedings (OSTI)

In order to build an intergrated heading and roofbolting unit, the Austrian firms Voeest Alpine and Boehler Bohr und Dricklufttechnik worked in cooperation. A Boehler all-hydraulic rotary drilling unit as mounted on each side of the slewing gear of the AM 50. Each drilling unit comprised a chain feed carriage for rotary drilling and a hydraulically operated boom to position the drill feed wherever required. The hydraulic drill with hydraulic driven chain feed is only 0.25 meter (10 inches) long. Thus with a chain feed length of 2.62 meters (8.6 feed), 2.25-meter (7.5-foot) holes can be drilled. Maximum drill thrust is 2.5 tons; the total thrust on the drill feed carriage directed against the face is 3 tons. The drill makes 1000 revolutions per minute and the motor can be rotated in both directions. In the non-operating position both drill booms are swung parallel to the AM 50 cutting boom. Since the hydraulic power pack of the AM 50 is not powerful enough to handle the extra drilling equipment Voeest Alpine developed an additional hydraulic unit comprising two pumps, each of 100-liter-per-minute capacity. Because of the extra weight of the modified unit (about 5 tons), the traveling ear of the AM 50 had to be modified to avoid overstraining the traveling motors. It was expected that the drill feed carriages would hinder the AM 50 operator's vision and thus cause difficulties during tunneling. In practice this did not happen. After getting used to the system the AM 50 operator was able to cut the roadway to the desired profile at a satisfactory speed. The additional weight increased the machine's stability.

Not Available

1980-03-01T23:59:59.000Z

280

Proceedings of IMECE2004 2004 ASME International Mechanical Engineering Congress and RD&D Expo  

E-Print Network (OSTI)

the electrohydrodynamic and electrokinetic pumps do not have moving parts, which increases reliability. However ROTARY SHAFT PUMP (RSP) Daniel B. Blanchard Phillip M. Ligrani Bruce K. Gale Convective Heat Transfer of a novel miniature pump called the rotary shaft pump (RSP) is described. The impeller is made by boring

Utah, University of

Note: This page contains sample records for the topic "rotary mechanical power" 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.


281

Dynamic power management with hybrid power sources  

Science Conference Proceedings (OSTI)

DPM (Dynamic Power Management) is an effective technique for reducing the energy consumption of embedded systems that is based on migrating to a low power state when possible. While conventional DPM minimizes the energy consumption of the embedded system, ... Keywords: DPM, embedded system, fuel cell, hybrid power

Jianli Zhuo; Chaitali Chakrabarti; Kyungsoo Lee; Naehyuck Chang

2007-06-01T23:59:59.000Z

282

LIFE Power Plant Fusion Power Associates  

E-Print Network (OSTI)

LIFE Power Plant Fusion Power Associates December 14, 2011 Mike Dunne LLNL #12;NIf-1111-23714.ppt LIFE power plant 2 #12;LIFE delivery timescale NIf-1111-23714.ppt 3 #12;Timely delivery is enabled near-term, NIF based, NIC-derivative fusion performance § 3 allows small, thin Fresnel lenses ­ enables

283

Dynamic power management in environmentally powered systems  

Science Conference Proceedings (OSTI)

In this paper a framework for energy management in energy harvesting embedded systems is presented. As a possible example scenario, we focus on wireless sensor nodes which are powered by solar cells. We demonstrate that classical power management solutions ... Keywords: embedded systems, energy harvesting, model predictive control, power management, real-time scheduling, reward maximization

Clemens Moser; Jian-Jia Chen; Lothar Thiele

2010-01-01T23:59:59.000Z

284

Conveyor with rotary airlock apparatus  

DOE Patents (OSTI)

This invention is comprised of an apparatus for transferring objects from a first region to a second region, the first and second regions having differing atmospheric environments. The apparatus includes a shell having an entrance and an exit, a conveyer belt running through the shell from the entrance to the exit, and a horizontally mounted `revolving door` with at least four vanes revolving about its axis. The inner surface of the shell and the top surface of the conveyer belt act as opposing walls of the `revolving door`. The conveyer belt dips as it passes under but against the revolving vanes so as not to interfere with them but to engage at least two of the vanes and define thereby a moving chamber. Preferably, the conveyer belt has ridges or grooves on its surface that engage the edges of the vanes and act to rotate the vane assembly. Conduits are provided that communicate with the interior of the shell and allow the adjustment of the atmosphere of the moving chamber or recovery of constituents of the atmosphere of the first region from the moving chamber before they escape to the second region.

Kronbert, J.W.

1993-01-01T23:59:59.000Z

285

Power and energy  

Science Conference Proceedings (OSTI)

The author examines the development of nuclear power throughout the world, commencing with proposals for California, USA. Evidence that nuclear power remains viable in Asia include Japan Atomic Power Co.'s announcement of plans for a 1300 MW reactor ...

G. Zorpette

1995-01-01T23:59:59.000Z

286

Solar powered desalination system  

E-Print Network (OSTI)

photon capture area and electrical power consumption. Bothcapture area (m 2 ) Electrical power consumption (kWh/kg HType 2 Type 3 Type 4 Electrical power consumption for these

Mateo, Tiffany Alisa

2011-01-01T23:59:59.000Z

287

PowerPoint Presentation  

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

power module - High temperature operation - Size reduction - 3-kW 120V single-phase inverter (250 C+) Input Power Output Power > 90% efficiency (estimated) Phase I: Very High...

288

Single Cell Mechanics BIOMATERIALS  

E-Print Network (OSTI)

Single Cell Mechanics BIOMATERIALS Our goal is to develop fundamental tools to measure the response of live cells to mechanical stimulation. The mechanisms by which cells convert mechanical forces evaluate the underlying mechanisms of cell mechanics. Objective Impact and Customers · Cancer, heart

289

Green Power Network: Green Power Markets Overview  

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

Green Markets Green Markets Search Search Help More Search Options Search Site Map News TVA Seeks 126 MW of Renewables in 2014 December 2013 More News More News Subscribe to E-Mail Update Subscribe to e-mail update Events EPA Webinar - The Power of Aggregated Purchasing: How to Green Your Electricity Supply & Save Money January 15, 2014 1:00-2:00 p.m. ET Previous Webinars More News Features Green Power Market Status Report (2011 Data) Featured Green Power Reports Green Pricing Green Power Marketing Green Certificates Carbon Offsets State Policies Overview The essence of green power marketing is to provide market-based choices for electricity consumers to purchase power from environmentally preferred sources. The term "green power" is used to define power generated from renewable energy sources, such as wind and solar power, geothermal, hydropower and various forms of biomass. Green power marketing has the potential to expand domestic markets for renewable energy technologies by fostering greater availability of renewable electric service options in retail markets. Although renewable energy development has traditionally been limited by cost considerations, customer choice allows consumer preferences for cleaner energy sources to be reflected in market transactions. In survey after survey, customers have expressed a preference and willingness to pay more, if necessary, for cleaner energy sources. You can find more information about purchase options on our "Buying Green Power" page.

290

PowerPoint Presentation  

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

302011 Essential PV power plant features Reliable power conversion Extensive service network Remote monitoring & diagnostics Plant level control Advanced grid-friendly features...

291

Siemens Power Generation, Inc.  

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

Presented at the 2005 Pittsburgh Coal Conference Siemens Power Generation, Inc. Page 1 of 10 Siemens Power Generation, Inc., All Rights Reserved Development of a Catalytic...

292

Laser Radiometry: Powering Up  

Science Conference Proceedings (OSTI)

... Radiometry: Powering Up. June 11, 2012. ... Contact: Marla Dowell 303-497- 7455. Chris Cromer examines one of PML's next-generation power meters ...

2012-06-14T23:59:59.000Z

293

Sunrise II Power Plant  

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

Sunrise Power Company, LLC (Sunrise), has planned the modification of an existing power plant project to increase its generation capacity by 265 megawatts by 2003. The initial...

294

Southwestern Power Administration  

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

FOIAPrivacy Act Submit a FOIA Request DOE FOIA Requester Service Center Electronic Reading Room FOIA Links Power Marketing Administrations' FOIA Links Bonneville Power...

295

Electrolytes for power sources  

DOE Patents (OSTI)

Electrolytes for power sources, particularly alkaline and acidic power sources, comprising benzene polysulfonic acids and benzene polyphosphonic acids or salts of such acids.

Doddapaneni, Narayan (Albuquerque, NM); Ingersoll, David (Albuquerque, NM)

1995-01-01T23:59:59.000Z

296

Electrolytes for power sources  

DOE Patents (OSTI)

Electrolytes are disclosed for power sources, particularly alkaline and acidic power sources, comprising benzene polysulfonic acids and benzene polyphosphonic acids or salts of such acids. 7 figures.

Doddapaneni, N.; Ingersoll, D.

1995-01-03T23:59:59.000Z

297

Radioisotope Power Generation  

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

Radioisotope Power Generation Long lived power sources are needed for equipment that is too remote or inaccessible for replacement. By choosing a radioactive element with a long...

298

Electric Power Monthly  

U.S. Energy Information Administration (EIA)

Net Generation by Energy Source: Commercial Combined Heat and Power Sector . Table 1.5. Net Generation by Energy Source: Industrial Combined Heat and Power Sector .

299

Nuclear Fusion Power  

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

Power Nuclear fusion reactors, if they can be made to work, promise virtually unlimited power for the indefinite future. This is because the fuel, isotopes of hydrogen, are...

300

PowerPoint Presentation  

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

CT (USA), international presence in USA, Canada, Germany (Fraunhofer, IKTS) and South Korea (Posco) Delivering Direct FuelCell (DFC ) power plants for On-Site Power and...

Note: This page contains sample records for the topic "rotary mechanical power" 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

Energy Storage & Power Electronics 2008 Peer Review - Power Electronic...  

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

& Power Electronics 2008 Peer Review - Power Electronics (PE) Systems Presentations Energy Storage & Power Electronics 2008 Peer Review - Power Electronics (PE) Systems...

302

Karnataka Power Corporation Limited and National Thermal Power...  

Open Energy Info (EERE)

Karnataka Power Corporation Limited and National Thermal Power Corporation JV Jump to: navigation, search Name Karnataka Power Corporation Limited and National Thermal Power...

303

Water-Power Development, Conservation of Hydroelectric Power...  

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

Water-Power Development, Conservation of Hydroelectric Power Dams and Works (Virginia) Water-Power Development, Conservation of Hydroelectric Power Dams and Works (Virginia)...

304

Flex power perspectives of indirect power system control through...  

Open Energy Info (EERE)

power perspectives of indirect power system control through dynamic power price (Smart Grid Project) Jump to: navigation, search Project Name Flex power perspectives of indirect...

305

Microsoft PowerPoint - 4-07 Herman _1000 hr test talk  

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

L3100-2010-00229 L3100-2010-00229 Results of the 1000 Hour Rotary Microfilter Endurance Test D.T. Herman - SRNL W. Greene, J. Gilmour, T. Ho - SpinTek 11/16/10 EM Waste Processing Technical Exchange 2010 Print Close 2 SRNL-L3100-2010-00229 Rotary Microfilter 1000 Hour Test SpinTek Rotary Microfilter 1 - 25 filter disks ~11 inch diameter ~1 sq ft filter media per disk 1170 rpm 60 ft/s tip speed Turbulence promoters / baffles above and below disks increase shear at the membrane surface and reduce cake buildup 40 psi pressure drop across filter PERMEATE ROTATING MEMBRANES STATIONARY SHEAR ELEMENTS TIE RODS HOLLOW SHAFT Membrane Back plate Epoxy Bead Permeate carrier Print Close 3 SRNL-L3100-2010-00229 Rotary Microfilter 1000 Hour Test Design of the 2 nd Generation 25-Disk Rotary Filter Improvements:

306

Military power requirements and backup power considerations  

Science Conference Proceedings (OSTI)

All US Air Force (USAF) facilities have certain critical power requirements that must be met in order to carry out their mission successfully. Internal USAF studies have shown that the mission can degrade precipitously as the available power decreases below the mission critical level. Now, more than ever before, the military and private industry are finding that certain functions, such as automated data processing and automated process control, respond catastrophically to power reductions. Furthermore, increased reliance on electrical power means, in the case of the Air Force, that critical power requirements are anticipated to increase by half over the next 15 yr. For these reasons and others, the USAF is investigating several means of improving the availability of electric power under adverse conditions above that which can be provided by an off-base supplier. Among the approaches to this problem being pursued at this time are a program to improve all sorts of generator sets on a service-wide basis and the Multimegawatt Terrestrial Power (MTP) Program, which is pursuing the design and testing of a small dedicated nuclear power source to provide critical mission power. The purpose of this paper is to provide some insight into some of the issues associated with USAF power programs.

Botts, T.E.

1986-01-01T23:59:59.000Z

307

Improved Conventional Testing of Power Plant Cables  

Science Conference Proceedings (OSTI)

Factors such as mechanical stress, dust and pollution accumulation, moisture, and thermal aging can cause deterioration and ultimately failure of power, control, and instrumentation cables. This report documents physical, chemical, and electrical tests performed on thermally aged power plant cable, with emphasis on improvements in two major electrical diagnostic techniques: low-frequency insulation analysis to probe the bulk condition of cable insulation and partial discharge testing to detect cracks and...

1996-03-14T23:59:59.000Z

308

Honeybees and Power Line EMF Environments  

Science Conference Proceedings (OSTI)

This Resource Paper reviews research relevant to potential interactions between electric and magnetic field environments in the vicinity of high voltage overhead transmission lines. The paper deals first, with a description of a series of electric field studies conducted in a power line environment followed by mechanism studies under controlled conditions; second, with studies of the ability of bees to discriminate static and alternating magnetic fields; and third, with a study of native bees in a power ...

2010-12-06T23:59:59.000Z

309

Recent drilling activities at the earth power resources Tuscarora geothermal power project's hot sulphur springs lease area.  

DOE Green Energy (OSTI)

Earth Power Resources, Inc. recently completed a combined rotary/core hole to a depth of 3,813 feet at it's Hot Sulphur Springs Tuscarora Geothermal Power Project Lease Area located 70-miles north of Elko, Nevada. Previous geothermal exploration data were combined with geologic mapping and newly acquired seismic-reflection data to identify a northerly tending horst-graben structure approximately 2,000 feet wide by at least 6,000 feet long with up to 1,700 feet of vertical offset. The well (HSS-2) was successfully drilled through a shallow thick sequence of altered Tertiary Volcanic where previous exploration wells had severe hole-caving problems. The ''tight-hole'' drilling problems were reduced using drilling fluids consisting of Polymer-based mud mixed with 2% Potassium Chloride (KCl) to reduce Smectite-type clay swelling problems. Core from the 330 F fractured geothermal reservoir system at depths of 2,950 feet indicated 30% Smectite type clays existed in a fault-gouge zone where total loss of circulation occurred during coring. Smectite-type clays are not typically expected at temperatures above 300 F. The fracture zone at 2,950 feet exhibited a skin-damage during injection testing suggesting that the drilling fluids may have caused clay swelling and subsequent geothermal reservoir formation damage. The recent well drilling experiences indicate that drilling problems in the shallow clays at Hot Sulphur Springs can be reduced. In addition, average penetration rates through the caprock system can be on the order of 25 to 35 feet per hour. This information has greatly reduced the original estimated well costs that were based on previous exploration drilling efforts. Successful production formation drilling will depend on finding drilling fluids that will not cause formation damage in the Smectite-rich fractured geothermal reservoir system. Information obtained at Hot Sulphur Springs may apply to other geothermal systems developed in volcanic settings.

Goranson, Colin

2005-03-01T23:59:59.000Z

310

Superconducting Power Equipment  

Science Conference Proceedings (OSTI)

The 2010 Electric Power Research Institute (EPRI) Technology Watch (Techwatch) report on superconducting power applications (EPRI report 1019995, Superconducting Power Equipment: Technology Watch 2010) introduced coverage about superconducting magnetic energy storage systems and superconducting transformers. The 2011 report contains additional information about superconducting power equipment, including progress to demonstrations in some projects. The 2011 report also includes a section on superconductin...

2011-12-22T23:59:59.000Z

311

Power Purchase Agreements  

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

Presentation covers the power purchase agreements taken from the FEMP Alternative Finance Options (AFO) webinar.

312

Transportation and Stationary Power  

E-Print Network (OSTI)

heat, hydrogen and power (CHHP) "trigeneration" systems can hypothetically be configured to provide (1

313

Mechanical Cutting of Irradiated Reactor Internal Components  

SciTech Connect

This paper discusses the use of mechanical cutting methods to volume reduce and package irradiated reactor internal components. The recent completion of the removal of the Reactor Vessel Internals (RVI) from within the Sacramento Municipal Utility District's (SMUD) Rancho Seco Nuclear Power Plant demonstrates that unlike previous methods used for similar projects, mechanical cutting minimizes exposure to workers, costly water cleanup, and excessive secondary waste generation. (authors)

Anderson, M.G.; Fennema, J.A. [MOTA Corporation, West Columbia, SC (United States)

2007-07-01T23:59:59.000Z

314

Reference Poster: Turbine Bearing Damage Mechanisms  

Science Conference Proceedings (OSTI)

Damage to turbine and generator bearings accounts for a significant amount of lost generation in the power industry. There are numerous known damage mechanisms affecting these bearings, and as part of EPRIs technology transfer efforts, we have developed a reference poster. This poster provides clear, concise, and visual information for a wide variety of mechanisms and is meant to supplement related EPRI projects. By providing an overview of various issues as well as information on how to ...

2012-10-04T23:59:59.000Z

315

Latency of wireless sensor networks with uncoordinated power saving mechanisms  

Science Conference Proceedings (OSTI)

We consider a wireless sensor network, where nodes switch between an active (on) and a sleeping (off) mode, to save energy. The basic assumptions are that the on/off schedules are completely uncoordinated and that the sensors are distributed according ... Keywords: continuum percolation, first passage percolation, sensor networks

Olivier Dousse; Petteri Mannersalo; Patrick Thiran

2004-05-01T23:59:59.000Z

316

Mechanical properties of materials for fusion power plants  

E-Print Network (OSTI)

induced plasticity wppm Weight partspermillion vii Nomenclature Chapter 2 at% Atomic percentage D Deuterieum eV Electronvolt Z AM Metallic atom with a mass number Z and an atomic number A n Neutron T Tritium wt% Weight percentage ? Alpha particle (helium ion...

Forsik, Stphane Alexis Jacques

317

Stirling engine power control and motion conversion mechanism  

DOE Patents (OSTI)

A motion conversion device for converting between the reciprocating motion of the pistons in a Stirling engine and the rotating motion of its output shaft, and for changing the stroke and phase of the pistons, includes a lever pivoted at one end and having a cam follower at the other end. The piston rod engages the lever intermediate its ends and the cam follower engages a cam keyed to the output shaft. The lever pivot can be moved to change the length of the moment arm defined between the cam follower and the piston rod the change the piston stroke and force exerted on the cam, and the levers can be moved in opposite directions to change the phase between pistons.

Marks, David T. (Birmingham, MI)

1983-01-01T23:59:59.000Z

318

Green Power Network: Green Power Leadership Awards  

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

Awards will highlight the accomplishments of green power suppliers (utilities, retail suppliers, REC marketers, and renewable energy project developers) that are innovators and...

319

Heavy Vehicle Essential Power Systems Workshop  

DOE Green Energy (OSTI)

Essential power is a crosscutting technology area that addresses the efficient and practical management of electrical and thermal requirements on trucks. Essential Power Systems: any function on the truck, that is not currently involved in moving the truck, and requires electrical or mechanical energy; Truck Lights; Hotel Loads (HVAC, computers, appliances, lighting, entertainment systems); Pumps, starter, compressor, fans, trailer refrigeration; Engine and fuel heating; and Operation of power lifts and pumps for bulk fluid transfer. Transition from ''belt and gear driven'' to auxiliary power generation of electricity - ''Truck Electrification'' 42 volts, DC and/ or AC; All electrically driven auxiliaries; Power on demand - manage electrical loads; Benefits include: increased fuel efficiency, reduced emission both when truck is idling and moving down the road.

Susan Rogers

2001-12-12T23:59:59.000Z

320

Heavy Vehicle Essential Power Systems Workshop  

SciTech Connect

Essential power is a crosscutting technology area that addresses the efficient and practical management of electrical and thermal requirements on trucks. Essential Power Systems: any function on the truck, that is not currently involved in moving the truck, and requires electrical or mechanical energy; Truck Lights; Hotel Loads (HVAC, computers, appliances, lighting, entertainment systems); Pumps, starter, compressor, fans, trailer refrigeration; Engine and fuel heating; and Operation of power lifts and pumps for bulk fluid transfer. Transition from ''belt and gear driven'' to auxiliary power generation of electricity - ''Truck Electrification'' 42 volts, DC and/ or AC; All electrically driven auxiliaries; Power on demand - manage electrical loads; Benefits include: increased fuel efficiency, reduced emission both when truck is idling and moving down the road.

Susan Rogers

2001-12-12T23:59:59.000Z

Note: This page contains sample records for the topic "rotary mechanical power" 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

Integrated Status and Effectiveness Monitoring Program, Entiat River Status and Trend Snorkel Surveys and Rotary Smolt Trap Operations in Nason Creek, March 2007 through March 2008.  

DOE Green Energy (OSTI)

The Integrated Status and Effectiveness Monitoring Program (ISEMP-BPA project No.2003-0017) has been created as a cost effective means of developing protocols and new technologies, novel indicators, sample designs, analytical, data management and communication tools and skills, and restoration experiments that support the development of a region-wide Research, Monitoring and Evaluation (RME) program to assess the status of anadromous salmonid populations, their tributary habitat and restoration and management actions. The most straightforward approach to developing a regional-scale monitoring and evaluation program would be to increase standardization among status and trend monitoring programs. However, the diversity of species and their habitat, as well as the overwhelming uncertainty surrounding indicators, metrics, and data interpretation methods, requires the testing of multiple approaches. Thus, the approach ISEMP has adopted is to develop a broad template that may differ in the details among subbasins, but one that will ultimately lead to the formation of a unified RME process for the management of anadromous salmonid populations and habitat across the Columbia River Basin. ISEMP has been initiated in three pilot subbasins, the Wenatchee/Entiat, John Day, and Salmon. To balance replicating experimental approaches with the goal of developing monitoring and evaluation tools that apply as broadly as possible across the Pacific Northwest, these subbasins were chosen as representative of a wide range of potential challenges and conditions, e.g., differing fish species composition and life histories, ecoregions, institutional settings, and existing data. ISEMP has constructed a framework that builds on current status and trend monitoring infrastructures in these pilot subbasins, but challenges current programs by testing alternative monitoring approaches. In addition, the ISEMP is: (1) Collecting information over a hierarchy of spatial scales, allowing for a greater flexibility of data aggregation for multi-scale recovery planning assessments, and (2) Designing methods that: (a) Identify factors limiting fish production in watersheds; (b) Determine restoration actions to address these problems; (c) Implement actions as a large-scale experiment (e.g. Before After Control Impact, or BACI design), and (d) Implement intensive monitoring and research to evaluate the action's success. The intent of the ISEMP project is to design monitoring programs that can efficiently collect information to address multiple management objectives over a broad range of scales. This includes: Evaluating the status of anadromous salmonids and their habitat; Identifying opportunities to restore habitat function and fish performance; and Evaluating the benefits of the actions to the fish populations across the Columbia River Basin. The multi-scale nature of this goal requires the standardization of protocols and sampling designs that are statistically valid and powerful, properties that are currently inconsistent across the multiple monitoring programs in the region. Other aspects of the program will aid in the ability to extrapolate information beyond the study area, such as research to elucidate causal mechanisms, and a classification of watersheds throughout the Columbia River Basin. Obviously, the scale of the problem is immense and the ISEMP does not claim to be the only program working towards this goal. As such, ISEMP relies heavily on the basin's current monitoring infrastructure to test and develop monitoring strategies, while acting as a coordinating body and providing support for key elements such as data management and technical analyses. The ISEMP also ensures that monitoring programs can address large-scale management objectives (resulting largely from the ESA) through these local efforts. While the ISEMP maintains a regional focus it also returns the necessary information to aid in management at the smaller spatial scales (individual projects) where manipulations (e.g., habitat restoration actions) actually occur. The work captured i

Collins, Matthew; Jorgensen, John; Murdock, Keely

2008-03-10T23:59:59.000Z

322

Energy harvesting: A battle against power losses  

E-Print Network (OSTI)

Is it possible, are indefinite operational life and wireless power grids possible? Maybe not for every application, but how about for micro-scale devices? The fact is in situ energy sources like MEMS vibrational and thermoelectric generators can potentially achieve these goals for small footprint systemin-package (SiP) solutions like bio-implantable devices and wireless sensor transceiver network nodes. The key objective is to scavenge sufficient energy from the environment to sustain the micro-power system indefinitely, or at least extend life to practical levels. The problem, however, is micro-scale harvesters can only generate low-to-moderate power, and the energy-storage and power-delivery processes of the system inherently consume a portion of that, which is why the various functions of a loading application must be power-moded, that is, multiplexed, duty-cycled, and turned off when not needed. Fortunately, low frequency ambient vibrations are relatively abundant, stable, and predictable, and tuned MEMS- and CMOS-compatible electrostatic harvesters, for instance, can generate moderate power levels [1], but only if they prevail over the power losses associated with energy storage and power delivery. The focus of this article is to therefore identify, quantify, and discuss the power-consuming mechanisms present in a harvester circuit. Harvesting energy

A. Rinc; Oacute N-mora; Senior Member; Erick O. Torres; Student Member; Ieee Georgia

2006-01-01T23:59:59.000Z

323

OPPORTUNITIES FOR STUDENT INTERNS/RECENT GRADUATES SOUTHWESTERN POWER ADMINISTRATION  

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

ELECTRIC POWER MARKETING ELECTRIC POWER MARKETING OFFICE OF CORPORATE OPERATIONS ELECTRICAL, MECHANICAL, OR INDUSTRIAL ENGINEER Apply at www.usajobs.gov About the Division of Electric Power Marketing: The Division of Electric Power Marketing negotiates, develops, and drafts contracts and technical documents to support Southwestern's mission of marketing and delivering Federal hydropower. The Division also oversees Southwestern's program to replace major electrical and mechanical equipment at U.S. Army Corps of Engineers (Corps) hydroelectric projects. Technical aspects and length of a project's lifecycle can vary by project, but the work generally involves strong project management skills in addition to technical knowledge. Skills Needed: * Basic computer applications (Microsoft Office - Word, Excel, Outlook, etc.)

324

Electronic and photonic power applications  

DOE Green Energy (OSTI)

Efficient conversion of radioactive decay to electrical power has been the goal of a number of past research efforts. One of these was the Elgin-Kidde nuclear battery. In this concept promethium-147 was used as a beta source which was then mixed with a phosphor to produce a radioluminescent (RL) source of light. The light source was coupled to silicon photovoltaic converters to create electricity. This photoelectric approach is being revisited using tritium based solid state compounds and advanced gas concepts to produce RL light sources being disclosed at this conference. Efficient conversion of the RL light energy to electrical energy imposes certain requirements on the semiconductor converter. These requirements will be discussed. Projections of power source electrical and physical characteristics will be presented based on reasonable design parameter assumptions. The words Power Supply'' usually evoke a vision of a rotating machine or chemical battery. However, today's technology is making increasing use of photonics, where information and even power can be moved through optical fibers. Brighter volumetric RL light sources open a whole new range of photonics-based applications, while solid state tritiated compounds provide the foundation for improved mechanical adaptability and safety. 4 refs., 6 figs., 1 tab.

Walko, R.J.; Ashley, C.S.; Brinker, C.J.; Reed, S.T.; Renschler, C.L. (Sandia National Labs., Albuquerque, NM (USA)); Shepodd, T.J. (Sandia National Labs., Livermore, CA (USA)); Ellefson, R.E.; Gill, J.T. (EG and G Mound Applied Technologies, Miamisburg, OH (USA)); Leonard, L.E. (USDOE, Washington, DC (USA))

1990-01-01T23:59:59.000Z

325

Electronic and photonic power applications  

SciTech Connect

Efficient conversion of radioactive decay to electrical power has been the goal of a number of past research efforts. One of these was the Elgin-Kidde nuclear battery. In this concept promethium-147 was used as a beta source which was then mixed with a phosphor to produce a radioluminescent (RL) source of light. The light source was coupled to silicon photovoltaic converters to create electricity. This photoelectric approach is being revisited using tritium based solid state compounds and advanced gas concepts to produce RL light sources being disclosed at this conference. Efficient conversion of the RL light energy to electrical energy imposes certain requirements on the semiconductor converter. These requirements will be discussed. Projections of power source electrical and physical characteristics will be presented based on reasonable design parameter assumptions. The words Power Supply'' usually evoke a vision of a rotating machine or chemical battery. However, today's technology is making increasing use of photonics, where information and even power can be moved through optical fibers. Brighter volumetric RL light sources open a whole new range of photonics-based applications, while solid state tritiated compounds provide the foundation for improved mechanical adaptability and safety. 4 refs., 6 figs., 1 tab.

Walko, R.J.; Ashley, C.S.; Brinker, C.J.; Reed, S.T.; Renschler, C.L. (Sandia National Labs., Albuquerque, NM (USA)); Shepodd, T.J. (Sandia National Labs., Livermore, CA (USA)); Ellefson, R.E.; Gill, J.T. (EG and G Mound Applied Technologies, Miamisburg, OH (USA)); Leonard, L.E. (USDOE, Washington, DC (USA))

1990-01-01T23:59:59.000Z

326

High power fast ramping power supplies  

Science Conference Proceedings (OSTI)

Hundred megawatt level fast ramping power converters to drive proton and heavy ion machines are under research and development at accelerator facilities in the world. This is a leading edge technology. There are several topologies to achieve this power level. Their advantages and related issues will be discussed.

Marneris,I.; Bajon, E.; Bonati, R.; Sandberg, J.; Roser, T.; Tsoupas, N.

2009-05-04T23:59:59.000Z

327

Active Power Control from Wind Power (Presentation)  

DOE Green Energy (OSTI)

In order to keep the electricity grid stable and the lights on, the power system relies on certain responses from its generating fleet. This presentation evaluates the potential for wind turbines and wind power plants to provide these services and assist the grid during critical times.

Ela, E.; Brooks, D.

2011-04-01T23:59:59.000Z

328

MechanicalTesting  

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

structures, validation of encapsulant cure stress models, development of frac- ture mechanics tests for use in adhesion studies and understanding the failure mechanism of...

329

Green Power Network: Green Power Policies  

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

Green Power Marketing Green Certificates Carbon Offsets State Policies govern_purch Community Choice Aggregation Disclosure Policies Green Power Policies Net Metering Policies Green Power Policies A number of state and local governments have policies in place that encourage the development of green power markets. Government green power purchasing mandates or goals have been established by the federal government, as well as state and local governments to procure renewable energy for the electricity used by government facilities or operations. Community choice aggregation allows communities to determine their electricity generation sources by aggregating the community load and purchasing electricity from an alternate electricity supplier while still receiving transmission and distribution service from their existing provider.

330

A simulation based real options approach for the investment evaluation of nuclear power  

Science Conference Proceedings (OSTI)

The investment of nuclear power has several uncertainties. This paper establishes a nuclear power investment evaluation model by employing real options theory with Monte Carlo method to evaluate the value of nuclear power plant from the perspective of ... Keywords: Least Squares Monte-Carlo, Nuclear accident, Nuclear power investment, Price mechanism, Real options

Lei Zhu

2012-11-01T23:59:59.000Z

331

Mechanical Performance - Extreme Conditions  

Science Conference Proceedings (OSTI)

... critical to US manufacturing, homeland security, and energy infrastructure. ... The optimization of high-speed machining processes through powerful ...

2013-03-13T23:59:59.000Z

332

6.061 / 6.690 Introduction to Electric Power Systems, Spring 2007  

E-Print Network (OSTI)

This course is an introductory subject in the field of electric power systems and electrical to mechanical energy conversion. Electric power has become increasingly important as a way of transmitting and transforming energy ...

Kirtley, James

333

THERMOCHEMICAL HEAT STORAGE FOR CONCENTRATED SOLAR POWER  

SciTech Connect

Thermal energy storage (TES) is an integral part of a concentrated solar power (CSP) system. It enables plant operators to generate electricity beyond on sun hours and supply power to the grid to meet peak demand. Current CSP sensible heat storage systems employ molten salts as both the heat transfer fluid and the heat storage media. These systems have an upper operating temperature limit of around 400 C. Future TES systems are expected to operate at temperatures between 600 C to 1000 C for higher thermal efficiencies which should result in lower electricity cost. To meet future operating temperature and electricity cost requirements, a TES concept utilizing thermochemical cycles (TCs) based on multivalent solid oxides was proposed. The system employs a pair of reduction and oxidation (REDOX) reactions to store and release heat. In the storage step, hot air from the solar receiver is used to reduce the oxidation state of an oxide cation, e.g. Fe3+ to Fe2+. Heat energy is thus stored as chemical bonds and the oxide is charged. To discharge the stored energy, the reduced oxide is re-oxidized in air and heat is released. Air is used as both the heat transfer fluid and reactant and no storage of fluid is needed. This project investigated the engineering and economic feasibility of this proposed TES concept. The DOE storage cost and LCOE targets are $15/kWh and $0.09/kWh respectively. Sixteen pure oxide cycles were identified through thermodynamic calculations and literature information. Data showed the kinetics of re-oxidation of the various oxides to be a key barrier to implementing the proposed concept. A down selection was carried out based on operating temperature, materials costs and preliminary laboratory measurements. Cobalt oxide, manganese oxide and barium oxide were selected for developmental studies to improve their REDOX reaction kinetics. A novel approach utilizing mixed oxides to improve the REDOX kinetics of the selected oxides was proposed. It partially replaces some of the primary oxide cations with selected secondary cations. This causes a lattice charge imbalance and increases the anion vacancy density. Such vacancies enhance the ionic mass transport and lead to faster re-oxidation. Reoxidation fractions of Mn3O4 to Mn2O3 and CoO to Co3O4 were improved by up to 16 fold through the addition of a secondary oxide. However, no improvement was obtained in barium based mixed oxides. In addition to enhancing the short term re-oxidation kinetics, it was found that the use of mixed oxides also help to stabilize or even improve the TES properties after long term thermal cycling. Part of this improvement could be attributed to a reduced grain size in the mixed oxides. Based on the measurement results, manganese-iron, cobalt-aluminum and cobalt iron mixed oxides have been proposed for future engineering scale demonstration. Using the cobalt and manganese mixed oxides, we were able to demonstrate charge and discharge of the TES media in both a bench top fixed bed and a rotary kiln-moving bed reactor. Operations of the fixed bed configuration are straight forward but require a large mass flow rate and higher fluid temperature for charging. The rotary kiln makes direct solar irradiation possible and provides significantly better heat transfer, but designs to transport the TES oxide in and out of the reactor will need to be defined. The final reactor and system design will have to be based on the economics of the CSP plant. A materials compatibility study was also conducted and it identified Inconel 625 as a suitable high temperature engineering material to construct a reactor holding either cobalt or manganese mixed oxides. To assess the economics of such a CSP plant, a packed bed reactor model was established as a baseline. Measured cobalt-aluminum oxide reaction kinetics were applied to the model and the influences of bed properties and process parameters on the overall system design were investigated. The optimal TES system design was found to be a network of eight fixed bed reactors at 18.75 MWth each with charge and

PROJECT STAFF

2011-10-31T23:59:59.000Z

334

Name of Lecture Linear Fracture Mechanics Term Autumn Semester  

E-Print Network (OSTI)

power plant & Non Destructive Testing 7. Examination Text Printed synopses of lectures How to grade for mechanical engineers to prevent failures due to crack growth. Applicants should have attended the Advanced

335

Data Center Power Consumption  

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

Center Power Consumption Center Power Consumption A new look at a growing problem Fact - Data center power density up 10x in the last 10 years 2.1 kW/rack (1992); 14 kW/rack (2007) Racks are not fully populated due to power/cooling constraints Fact - Increasing processor power Moore's law Fact - Energy cost going up 3 yr. energy cost equivalent to acquisition cost Fact - Iterative power life cycle Takes as much energy to cool computers as it takes to power them. Fact - Over-provisioning Most data centers are over-provisioned with cooling and still have hot spots November 2007 SubZero Engineering An Industry at the Crossroads Conflict between scaling IT demands and energy efficiency Server Efficiency is improving year after year Performance/Watt doubles every 2 years Power Density is Going Up

336

Power Management Controls  

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

additional savings of 1.3 billion are lost because power management is present, but disabled. In some cases, power management is not compatible with the application or doesn't...

337

PowerPoint Presentation  

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

resolved Power capture and conversion in line with prediction 11 CF16539GG 1 OCEAN POWER DELIVERY LTD PROJECTS 12 CF16539GG 1 Enersis - Project 1 Enersis Portugal's largest...

338

Power and energy  

Science Conference Proceedings (OSTI)

The design and manufacture of electric power equipment, the one electrotechnology in which Europe could gain worldwide dominance by the end of the century, is examined. All three power-equipment categories-generation, transmission, and distribution-are ...

G. Zorpette

1990-04-01T23:59:59.000Z

339

IBM POWER6 microarchitecture  

Science Conference Proceedings (OSTI)

This paper describes the implementation of the IBM POWER6 microprocessor, a two-way simultaneous multithreaded (SMT) dual-core chip whose key features include binary compatibility with IBM POWER5 microprocessor-based systems; increased ...

H. Q. Le; W. J. Starke; J. S. Fields; F. P. O'Connell; D. Q. Nguyen; B. J. Ronchetti; W. M. Sauer; E. M. Schwarz; M. T. Vaden

2007-11-01T23:59:59.000Z

340

2025 Power Marketing Initiative  

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

and is in the process of developing a plan for marketing and allocating LAP hydroelectric power after the FES contracts expire. We call this plan our 2025 Power Marketing...

Note: This page contains sample records for the topic "rotary mechanical power" 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

Space Solar Power Program  

DOE Green Energy (OSTI)

Information pertaining to the Space Solar Power Program is presented on energy analysis; markets; overall development plan; organizational plan; environmental and safety issues; power systems; space transportation; space manufacturing, construction, operations; design examples; and finance.

Arif, H.; Barbosa, H.; Bardet, C.; Baroud, M.; Behar, A.; Berrier, K.; Berthe, P.; Bertrand, R.; Bibyk, I.; Bisson, J.; Bloch, L.; Bobadilla, G.; Bourque, D.; Bush, L.; Carandang, R.; Chiku, T.; Crosby, N.; De Seixas, M.; De Vries, J.; Doll, S.; Dufour, F.; Eckart, P.; Fahey, M.; Fenot, F.; Foeckersperger, S.; Fontaine, J.E.; Fowler, R.; Frey, H.; Fujio, H.; Gasa, J.M.; Gleave, J.; Godoe, J.; Green, I.; Haeberli, R.; Hanada, T.; Ha

1992-08-01T23:59:59.000Z

342

Body powered thermoelectric systems  

E-Print Network (OSTI)

Great interest exists for and progress has be made in the effective utilization of the human body as a possible power supply in hopes of powering such applications as sensors and continuously monitoring medical devices ...

Settaluri, Krishna Tej

2012-01-01T23:59:59.000Z

343

Designing Renewable Energy Financing Mechanism Terms of Reference | Open  

Open Energy Info (EERE)

Designing Renewable Energy Financing Mechanism Terms of Reference Designing Renewable Energy Financing Mechanism Terms of Reference (Redirected from Designing Renewable Energy Financing Mechanisms) Jump to: navigation, search Tool Summary Name: Designing Renewable Energy Financing Mechanisms Agency/Company /Organization: World Bank Sector: Energy Focus Area: Renewable Energy Topics: Finance, Implementation, Market analysis Website: web.worldbank.org/WBSITE/EXTERNAL/TOPICS/EXTENERGY2/EXTRENENERGYTK/0,, References: Designing Renewable Energy Financing Mechanisms[1] Resources Design of Micro-hydro Funding Facility and Community Mobilization Support Design of Institutional and Financial Intermediation Scheme for a Micro hydro Power Development Program Design of a Rural Energy Fund References ↑ "Designing Renewable Energy Financing Mechanisms"

344

CHALLENGES FACING HIGH POWER PROTON ACCELERATORS  

Science Conference Proceedings (OSTI)

This presentation will provide an overview of the challenges of high power proton accelerators such as SNS, J-PARC, etc., and what we have learned from recent experiences. Beam loss mechanisms and methods to mitigate beam loss will also be discussed.

Plum, Michael A [ORNL

2013-01-01T23:59:59.000Z

345

Modeling and simulating thermomigration in power electronics  

Science Conference Proceedings (OSTI)

Miniaturization of electronics to nanoscale leads to significantly higher current density levels and larger thermal gradients in electronics packaging. Laboratory test data show that thermomigration plays a significant role in high current density induced ... Keywords: damage mechanics, electromigration, nanoelectronics, power electronics packaging, solder joint reliability, thermomigration

Cemal Basaran; Shidong Li

2009-07-01T23:59:59.000Z

346

Mechanism of pressure welding  

SciTech Connect

Thesis. The mechanism in polycrystalline aluminum, copper, silver, and gold was investigated. (19 figures) (DLC)

Mohamed, H.A.E.F.

1973-12-01T23:59:59.000Z

347

CARTESIAN MECHANICS* Sophie Roux  

E-Print Network (OSTI)

1 CARTESIAN MECHANICS* Sophie Roux (Centre Alexandre Koyré, EHESS, Paris) Introduction For many the search for a mathematical treatment of phenomena, on the other hand the demand for mechanical as the typical mechanical philosopher, and contrasted as such to the founder of mechanics as a science, namely

Paris-Sud XI, Université de

348

INTRODUCTION TO THE MECHANICS  

E-Print Network (OSTI)

INTRODUCTION TO THE MECHANICS OF A CONTINUOUS MEDIUM Lawrence E. Malvern Professor of Mechanics princi- ples common to all branches of solid and fluid mechanics, designed to appeal to the intuition science. The book arose from the need to provide a general preparation in contin- uum mechanics

Kaminski, Edouard

349

Graduate quantum mechanics reform  

Science Conference Proceedings (OSTI)

We address four main areas in which graduatequantum mechanics education can be improved: course content

L. D. Carr; S. B. McKagan

2009-01-01T23:59:59.000Z

350

Concentrating Solar Power  

DOE Green Energy (OSTI)

Summarizes the goals and activities of the DOE Solar Energy Technologies Program efforts within its concentrating solar power subprogram.

Not Available

2008-09-01T23:59:59.000Z

351

Southwestern Power Administration  

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

disconnect switches, microprocessor relays, power transformers, surge arresters, and transformer bushings information resources management equipment and supplies such as monitors,...

352

Power Conversion System Architectures  

Science Conference Proceedings (OSTI)

... of Transformers Vacuum Pressure Impregnated (VPI) Oil Immersed Cast Coil Transformer Configurations Single winding 5/24/2012 Power ...

2012-11-13T23:59:59.000Z

353

Soldier power. Battery charging.  

E-Print Network (OSTI)

Soldier power. Marine. Battery charging. Advertising. Remote. SOFC (NanoDynamics, AMI) 60 watts q SOFC #12;

Hong, Deog Ki

354

Electric Power Metrology News  

Science Conference Proceedings (OSTI)

... Next-generation "smart" electrical meters for residential and commercial ... NIST Team Demystifies Utility of Power Factor Correction Devices Release ...

2010-05-24T23:59:59.000Z

355

Increased Power Flow Guidebook  

Science Conference Proceedings (OSTI)

The Increased Power Flow (IPF) Guidebook is a state-of-the-art and best practices guidebook on increasing power flow capacities of existing overhead transmission lines, underground cables, power transformers, and substation equipment without compromising safety and reliability. The Guidebook discusses power system concerns and limiting conditions to increasing capacity, reviews available technology options and methods, illustrates alternatives with case studies, and analyzes costs and benefits of differe...

2005-11-16T23:59:59.000Z

356

Superconducting Power Cables  

Science Conference Proceedings (OSTI)

Power cables constructed from superconducting materials are being realized in utility demonstrations within the United States. Cooled by liquid nitrogen, high temperature superconducting power cables can transfer large amounts of power through relatively small cross sections. The key to their high power capacity is the high current density inherent with superconductors; a superconducting wire can conduct several times as much current as copper or aluminum conductors of the same cross section. For the pas...

2006-11-30T23:59:59.000Z

357

Wind powering America: Colorado  

DOE Green Energy (OSTI)

This fact sheet contains information about green power programs in Colorado and a description of the Ponnequin Wind Farm.

O'Dell, K.

2000-04-03T23:59:59.000Z

358

Search for fusion power  

SciTech Connect

A brief review of the basics of fusion power is given. Both inertial confinement and magnetic confinement fusion are discussed.

Post, R.F.

1978-10-12T23:59:59.000Z

359

Peak power identification on power bumps during test application  

Science Conference Proceedings (OSTI)

Peak power during test can seriously impact circuit performance as well as the power safety for both CUT and tester. In this paper, we propose a method of layout-aware weighted switching activity identification flow that evaluates peak current/power ... Keywords: CMOS device, peak power identification, power bumps, test application, layout-aware weighted switching activity identification flow, dynamic power model, parasitic capacitance, resistance network, power bus, power delivery path, IR-drop, commercial power sign-off analysis tool

Wei Zhao; M. Tehranipoor

2011-07-01T23:59:59.000Z

360

Power Plant Cycling Costs  

Science Conference Proceedings (OSTI)

This report provides a detailed review of the most up to date data available on power plant cycling costs. The primary objective of this report is to increase awareness of power plant cycling cost, the use of these costs in renewable integration studies and to stimulate debate between policymakers, system dispatchers, plant personnel and power utilities.

Kumar, N.; Besuner, P.; Lefton, S.; Agan, D.; Hilleman, D.

2012-07-01T23:59:59.000Z

Note: This page contains sample records for the topic "rotary mechanical power" 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

Soft Magnetic Materials for High Power and High Frequency Power ...  

Science Conference Proceedings (OSTI)

Symposium, Advanced Materials for Power Electronics, Power Conditioning, and ... are in high demand for the next generation of miniaturized power electronics.

362

Wind Powering America Webinar: Wind Power Economics: Past, Present...  

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

Power Economics: Past, Present, and Future Trends Wind Powering America Webinar: Wind Power Economics: Past, Present, and Future Trends November 23, 2011 - 1:43pm Addthis Wind...

363

Assessment and design of small-scale hydro-electric power plants.  

E-Print Network (OSTI)

??Appraisal and design of small-scale hydro power plants requires a knowledge of hydraulics, hydrology, civil, mechanical, and electrical engineering, and basic economics. Further, small hydro (more)

Jones, ID

1988-01-01T23:59:59.000Z

364

Practitioner Perspectives Matter: Public Policy and Private Investment in the U.S. Electric Power Sector  

E-Print Network (OSTI)

structures on the cost of wind power. Energy Policy 25(1):cost. Favorable tariff mechanisms have been used to promote wind energy

Barradale, Merrill Jones

2010-01-01T23:59:59.000Z

365

Study of Microchip Power Module Materials with Mini-Channel Heat Exchanger.  

E-Print Network (OSTI)

??Micro-chip power capacities are rapidly increasing while the heat dissipation methods slowly advance. Thus, chip thermal conditions and the related mechanical properties need to be (more)

Cole, Andrew N.

2009-01-01T23:59:59.000Z

366

Promoting wind power in China : welfare analysis of Mandated Market Share (MMS).  

E-Print Network (OSTI)

??Along with peoples profound recognition of the importance of wind power, countries are seeking for feasible and effective policy regimes or mechanisms to explore and (more)

Fang, Fang

2007-01-01T23:59:59.000Z

367

Electric Power Monthly  

Gasoline and Diesel Fuel Update (EIA)

Electric Power Monthly > Electric Power Monthly Back Issues Electric Power Monthly > Electric Power Monthly Back Issues Electric Power Monthly Back Issues Monthly Excel files zipped 2010 January February March April May June July August September October November December 2009 January February March April May June July August September October November December 2008 January February March March Supplement April May June July August September October November December 2007 January February March April May June July August September October November December 2006 January February March April May June July August September October November December 2005 January February March April May June July August September October November December

368

ADEPT: Efficient Power Conversion  

SciTech Connect

ADEPT Project: In todays increasingly electrified world, power conversionthe process of converting electricity between different currents, voltage levels, and frequenciesforms a vital link between the electronic devices we use every day and the sources of power required to run them. The 14 projects that make up ARPA-Es ADEPT Project, short for Agile Delivery of Electrical Power Technology, are paving the way for more energy efficient power conversion and advancing the basic building blocks of power conversion: circuits, transistors, inductors, transformers, and capacitors.

None

2011-01-01T23:59:59.000Z

369

Power factors revealed  

SciTech Connect

When it comes to power, not all electric appliances are equal. To find out how much power an appliance consumes, energy auditors occasionally multiply line voltage by the current reading obtained from a clamp-on ammeter. However, depending on the appliance, this simple calculation will not always reflect true power usages. Since utilities bill only for true energy usage, residential energy audits should reflect the true power usage. This article explains in detail measuring power usage, ending with a number of suggestions including use of a wattmeter rather than a ammeter. 2 figs.

Brule, P.

1997-05-01T23:59:59.000Z

370

Conceptual design of a solar electric advanced Stirling power system: Monthly progress report, 1 January-31 January 1987  

DOE Green Energy (OSTI)

The overall objective of this program is to develop a high confidence conceptual design for a free-piston Stirling engine based system designed to deliver 25 kW of three-phase electric power to a utility grid when coupled to the 11 meter Test Bed Concentrator (TBC) at SNLA. Further specific objectives include a design life of 60,000 hours, minimum life cycle cost and dynamic balancing. The approach used to achieve these objectives is to utilize a hermetically sealed Stirling hydraulic concept based on technology developed to an advanced level during the past 19 years for an artificial heart power source. Such engines and critical metal bellows components have demonstrated operating times in the desired range. This approach provides full film hydraulic lubrication of all sliding parts, simple construction with conventional manufacturing tolerances, proven hydraulically coupled counterbalancing, and simple but effective power control to follow insolation variations. Other advantages include use of commercially available hydraulic motors and rotary alternators which can be placed on the ground to minimize suspended weight. The output from several engine/concentrator modules can be directed to one large motor/alternator for further cost savings. Three monthly progress reports for the same period, January 1-January 31, 1987, are compiled within this document.

White, M.A.; Brown, A.T.

1987-02-09T23:59:59.000Z

371

NSLS Mechanical Tech  

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

Mechanical Tech Mechanical Tech The Mechanical Technician group is supervised by Robert Scheuerer and consists of Mechanical Technicians with fabrication/machining, assembly, installation, and alignment/surveying skills. This group also serves as an interface to Central Fabrication Services when more complex or larger fabrication efforts are needed. The Mechanical Tech group is responsible for fabricating, installing, aligning, and troubleshooting the mechanical hardware used on NSLS and SDL accelerators, front ends, and User beamlines, often starting solely from Mechanical Design group drawings or CAD files. The Mechanical Tech Group is responsible for the fabrication, assembly and installation of components at the NSLS. These components include all mechanical assemblies and RF cavities. Another part of their job is to

372

Multimode power processor  

DOE Patents (OSTI)

In one embodiment, a power processor which operates in three modes: an inverter mode wherein power is delivered from a battery to an AC power grid or load; a battery charger mode wherein the battery is charged by a generator; and a parallel mode wherein the generator supplies power to the AC power grid or load in parallel with the battery. In the parallel mode, the system adapts to arbitrary non-linear loads. The power processor may operate on a per-phase basis wherein the load may be synthetically transferred from one phase to another by way of a bumpless transfer which causes no interruption of power to the load when transferring energy sources. Voltage transients and frequency transients delivered to the load when switching between the generator and battery sources are minimized, thereby providing an uninterruptible power supply. The power processor may be used as part of a hybrid electrical power source system which may contain, in one embodiment, a photovoltaic array, diesel engine, and battery power sources. 31 figs.

O' Sullivan, G.A.; O' Sullivan, J.A.

1999-07-27T23:59:59.000Z

373

Multimode power processor  

SciTech Connect

In one embodiment, a power processor which operates in three modes: an inverter mode wherein power is delivered from a battery to an AC power grid or load; a battery charger mode wherein the battery is charged by a generator; and a parallel mode wherein the generator supplies power to the AC power grid or load in parallel with the battery. In the parallel mode, the system adapts to arbitrary non-linear loads. The power processor may operate on a per-phase basis wherein the load may be synthetically transferred from one phase to another by way of a bumpless transfer which causes no interruption of power to the load when transferring energy sources. Voltage transients and frequency transients delivered to the load when switching between the generator and battery sources are minimized, thereby providing an uninterruptible power supply. The power processor may be used as part of a hybrid electrical power source system which may contain, in one embodiment, a photovoltaic array, diesel engine, and battery power sources.

O' Sullivan, George A. (Pottersville, NJ); O' Sullivan, Joseph A. (St. Louis, MO)

1999-01-01T23:59:59.000Z

374

PowerPoint Presentation  

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

6 Northern Power Systems, Inc 6 Northern Power Systems, Inc Northern Power Systems 182 Mad River Park Waitsfield, VT 05673 Ultracapacitor EnergyBridge(tm) UPS for Palmdale Water District DOE/ESS PEER Review November 3, 2006 11/03/2006 Northern Power Systems, Inc © 2006 2 Northern Power  Distributed Energy Systems Corp (NASDAQ:DESC)  Energy Solutions since 1974  Products, Systems and Services Divisions  Hundreds of Projects around the World  HQ and Manufacturing in Vermont  Regional offices in NY, TX, CA, England, and Mexico 11/03/2006 Northern Power Systems, Inc © 2006 3 Project Overview  CEC - California Energy Commission  Funding agency  Palmdale Water District  Award recipient, host site  Northern Power  Technology provider  Black & Veatch  Owner's engineer

375

Solar thermal power  

DOE Green Energy (OSTI)

Solar thermal power is produced by three types of concentrating systems, which utilize parabolic troughs, dishes, and heliostats as the solar concentrators. These systems are at various levels of development and commercialization in the United States and in Europe. The U.S. Industry is currently developing these systems for export at the end of this century and at the beginning of the next one for remote power, village electrification, and grid-connected power. U.S. utilities are not forecasting to need power generation capacity until the middle of the first decade of the 21{sup st} century. At that time, solar thermal electric power systems should be cost competitive with conventional power generation in some unique U.S. markets. In this paper, the authors describe the current status of the development of trough electric, dish/engine, and power tower solar generation systems. 46 refs., 20 figs., 8 tabs.

Mancini, T.R.; Kolb, G.J.; Prairie, M.R. [Sandia National Labs., Albuquerque, NM (United States)

1997-12-31T23:59:59.000Z

376

Heat gain from power panelboard.  

E-Print Network (OSTI)

??This thesis focuses on estimating the power loss from power panelboards by means of power loss models. The model is intended to be used by (more)

Piesciorovsky, Emilio Carlos

2009-01-01T23:59:59.000Z

377

Vehicle Technologies Office: Power Electronics  

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

Power Electronics to Power Electronics to someone by E-mail Share Vehicle Technologies Office: Power Electronics on Facebook Tweet about Vehicle Technologies Office: Power Electronics on Twitter Bookmark Vehicle Technologies Office: Power Electronics on Google Bookmark Vehicle Technologies Office: Power Electronics on Delicious Rank Vehicle Technologies Office: Power Electronics on Digg Find More places to share Vehicle Technologies Office: Power Electronics on AddThis.com... Just the Basics Hybrid & Vehicle Systems Energy Storage Advanced Power Electronics & Electrical Machines Power Electronics Electrical Machines Thermal Control & System Integration Advanced Combustion Engines Fuels & Lubricants Materials Technologies Power Electronics The power electronics activity focuses on research and development (R&D)

378

Solartech Power | Open Energy Information  

Open Energy Info (EERE)

Solartech Power Jump to: navigation, search Name Solartech Power Place Cerritos, California Zip 90703 Sector Solar Product Solartech power is a distributer of solar modules....

379

Peak Power at Peak Efficiency  

Peak Power At Peak Efficiency. 21. st. Industry Growth Forum. October 2008. PJ Piper (857) 350?3100. ... At <$10/bbl oil, QM Powers electric ...

380

Microsoft PowerPoint - IP  

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

U.S. Topics covered have included: * Sustainable Energy Development * Power Reactors * Nuclear Power Plant Planning * Nuclear Power Plant Pre-Operational Support IAEA's 10 Years...

Note: This page contains sample records for the topic "rotary mechanical power" 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

Green Power Network: News Archive  

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

to main content U.S. Department of Energy Energy Efficiency and Renewable Energy Green Power Network About the GPN Green Power Markets Buying Green Power Onsite Renewable...

382

Principle Power | Open Energy Information  

Open Energy Info (EERE)

Principle Power Place San Francisco, California Zip 94120 Sector Renewable Energy Product Principle Power is a global independent power producer committed to delivering green,...

383

Southwestern Power Administration One West...  

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

of the United States Department of Energy Southwestern Power Administration Strategic Plan March 2013 Administrator's Message The Southwestern Power Administration powers the...

384

Energy Harvesting Aware Power Management  

E-Print Network (OSTI)

and J. Schiller, Utilizing solar power in wireless sensorthat only the actual solar power available, and not anyconverted to electric power using solar cells. The magnitude

Kansal, Aman; Srivastava, Mani B

2005-01-01T23:59:59.000Z

385

Field fabrication of solar-thermal powered stream turbines for generation of mechanical power  

E-Print Network (OSTI)

Providing adequate energy to developing countries is one of the greatest global technical challenges today. Fabrication is undergoing a revolution that parallels the digitization of computation and communications. Emerging ...

Sun, Amy (Amy Teh-Yu)

2006-01-01T23:59:59.000Z

386

Internal pipe attachment mechanism  

DOE Patents (OSTI)

An attachment mechanism is described for repairing or extending fluid carrying pipes, casings, conduits, etc. utilizing one-way motion of spring tempered fingers to provide a mechanical connection between the attachment mechanism and the pipe. The spring tempered fingers flex to permit insertion into a pipe to a desired insertion depth. The mechanical connection is accomplished by reversing the insertion motion and the mechanical leverage in the fingers forces them outwardly against the inner wall of the pipe. A seal is generated by crushing a sealing assembly by the action of setting the mechanical connection. 6 figures.

Bast, R.M.; Chesnut, D.A.; Henning, C.D.; Lennon, J.P.; Pastrnak, J.W.; Smith, J.A.

1994-12-13T23:59:59.000Z

387

Power Quality Aspects in a Wind Power Plant: Preprint  

SciTech Connect

Although many operational aspects affect wind power plant operation, this paper focuses on power quality. Because a wind power plant is connected to the grid, it is very important to understand the sources of disturbances that affect the power quality.

Muljadi, E.; Butterfield, C. P.; Chacon, J.; Romanowitz, H.

2006-01-01T23:59:59.000Z

388

Comparison of Prime Movers Suitable for USMC Expeditionary Power Sources  

SciTech Connect

This report documents the results of the ORNL investigation into prime movers that would be desirable for the construction of a power system suitable for the United States Marine Corps (USMC) expeditionary forces under Operational Maneuvers From The Sea (OMFTS) doctrine. Discrete power levels of {approx}1, 5, 15, and 30 kW are considered. The only requirement is that the prime mover consumes diesel fuel. A brief description is given for the prime movers to describe their basic scientific foundations and relative advantages and disadvantages. A list of key attributes developed by ORNL has been weighted by the USMC to indicate the level of importance. A total of 14 different prime movers were scored by ORNL personnel in four size ranges (1,5, 15, & 30 kW) for their relative strength in each attribute area. The resulting weighted analysis was used to indicate which prime movers are likely to be suitable for USMC needs. No single engine or prime mover emerged as the clear-cut favorite but several engines scored as well or better than the diesel engine. At the higher load levels (15 & 30 kW), the results indicate that the open Brayton (gas turbine) is a relatively mature technology and likely a suitable choice to meet USMC needs. At the lower power levels, the situation is more difficult and the market alone is not likely to provide an optimum solution in the time frame desired (2010). Several prime movers should be considered for future developments and may be satisfactory; specifically, the Atkinson cycle, the open Brayton cycle (gas turbine), the 2-stroke diesel. The rotary diesel and the solid oxide fuel cell should be backup candidates. Of all these prime movers, the Atkinson cycle may well be the most suitable for this application but is an immature technology. Additional demonstrations of this engine will be conducted at ORNL. If this analysis is positive, then the performance of a generator set using this engine, the open Brayton and the 2-stroke diesel should be estimated to evaluate its potential suitability for expeditionary forces. The overriding conclusion of this effort is that we feel a suitable prime mover can be found but that the development will be technically challenging and trade-offs will be made before an optimum solution is found.

Theiss, T.J.

2000-04-18T23:59:59.000Z

389

The Department of Mechanical Engineering --Engineering Mechanics  

E-Print Network (OSTI)

, Missile, Research, Development and Engineering Directorate's Propulsion Iaborato'. Ills primaly areas of research are in numerical combustion, and the thermal and mechanical aging ofnitrate esterpropellants decomposition and combustion. Stabilizers are added to the propellants to neutralize the decomposition products

Endres. William J.

390

Magnetic Materials for High Frequency Power Electronics  

Science Conference Proceedings (OSTI)

Mar 7, 2013 ... Advanced Materials for Power Electronics, Power Conditioning, and Power ... in power conditioning, conversion, and generation applications.

391

Compliant mechanism learning toolkit  

E-Print Network (OSTI)

This thesis concerns a toolkit designed to assist in learning the behavior of complaint mechanisms. In the design of complaint mechanisms, increasingly complicated designs behave in ways that are harder to intuitively ...

Allard, Nicholas (Nicholas A.)

2006-01-01T23:59:59.000Z

392

Mechanical Properties of Lithium-Ion Battery Separator Materials  

E-Print Network (OSTI)

facing Li-ion batteries · Increase energy & power density · Decrease cost · Increase operating lifeMechanical Properties of Lithium-Ion Battery Separator Materials Patrick Sinko B.S. Materials and motivation ­ Why study lithium-ion batteries? ­ Lithium-ion battery fundamentals ­ Why study the mechanical

Petta, Jason

393

Use of Incremental Pricing in Coal Supply and Transportation Agreements to Achieve Power Sales: Report Series of Fuel and Power Market Integration  

Science Conference Proceedings (OSTI)

Increased power market competition is transforming into increased fuel supply competition. This report examines the role that "incremental pricing" for coal supply and transportation services plays in permitting power generators to achieve greater power sales. Surprisingly, the outlook for using such mechanisms for this purpose is more restricted than one might expect.

1997-11-26T23:59:59.000Z

394

QUICK QUANTUM MECHANICS ---Introduction ---  

E-Print Network (OSTI)

QUICK QUANTUM MECHANICS --- Introduction --- The following notes are intended to be a supplement to your study of Liboff's ``Introductory Quantum Mechanics.'' They are not an alternative! My purpose here of Classical Mechanics After Newton found his equations of motion, physicists knew they would have to wait

Jackson, Andrew D.

395

Biomass: Potato Power  

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

POTATO POWER POTATO POWER Curriculum: Biomass Power (organic chemistry, chemical/carbon cycles, plants, energy resources/transformations) Grade Level: Grades 2 to 3 Small groups (3 to 4) Time: 30 to 40 minutes Summary: Students assemble a potato battery that will power a digital clock. This shows the connection between renewable energy from biomass and its application. Provided by the Department of Energy's National Renewable Energy Laboratory and BP America Inc. BIOPOWER - POTATO POWER Purpose: Can a potato power a clock? Materials:  A potato  A paper plate  Two pennies  Two galvanized nails  Three 8 inch insulated copper wire, with 2 inches of the insulation removed from the ends  A digital clock (with places for wire attachment)

396

PowerPoint Presentation  

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

Arkansas Power Electronics International, Inc. Arkansas Power Electronics International, Inc. DOE Peer Review November 2-3, 2006 Marcelo Schupbach, Ph.D. Senior Engineer APEI, Inc. 535 Research Center Blvd. Fayetteville, AR 72701 Phone: (479)-443-5759 Email: marcelo@apei.net Website: www.apei.net High Temperature and High Power Density SiC Power Electronic Converters Energy Storage Systems Program 2 Overview * APEI, Inc. Corporate Status * Broader Impact of SiC-based Power Converter * DOE Energy Storage System Program Phase I SBIR - SBIR Topic: Wide Band Gap Power Converter Application - APEI's Goals - Phase I Accomplishments * DOE Energy Storage System Program Phase II SBIR - APEI's Goals - Research Team and Partners - Project Status Energy Storage Systems Program 3 APEI, Inc. Mission Statement We are a small business dedicated to

397

DSW Power Projects  

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

Power Projects Contact DSW Customers Customer Meetings Environmental Review-NEPA Operations & Maintenance Planning & Projects Power Marketing Power Projects Contact DSW Customers Customer Meetings Environmental Review-NEPA Operations & Maintenance Planning & Projects Power Marketing Rates DSW Power Projects Boulder Canyon: Straddling the Colorado River near the Arizona-Nevada border, Hoover Dam in Boulder Canyon creates Lake Mead. River waters turning turbines at Hoover Powerplant produce about 2,074 MW--enough electricity for nearly 8 million people. Western markets this power to public utilities in Arizona, California and Nevada over 53.30 circuit-miles of transmission line. Central Arizona: Authorized in 1968, the Central Arizona Project in Arizona and western New Mexico was built to improve water resources in the Colorado River Basin. Segments of the authorization allowed for Federal participation in the Navajo Generating Station. The Federal share of the powerplant's combined capacity is 547 MW.

398

PowerPoint Presentation  

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

11 North American Power Group, Ltd. 11 North American Power Group, Ltd. November 17, 2011 North American Power Group, Ltd. Two Elk Energy Park Carbon Site Characterization Study Preliminary Geologic Model-Update DOE NETL Annual Meeting November, 15-17, 2011 North American Power Group Copyright 2011 NAPG Two Elk Project Location 2 North American Power Group Copyright 2011 NAPG Work Flow and Project Integration 3 North American Power Group Copyright 2011 NAPG Modeling Approach  Model basin architecture is basically constructed from data within a 25 x 25 mile square area  Geologists reviewed data and correlated tops and surfaces  Porosity, permeability, petrophysics and other information correlated from that data to create a baseline model  Additional data has yet to be added from seismic information and from on-site penetrations

399

Solar power towers  

DOE Green Energy (OSTI)

The high desert near Barstow, California, has witnessed the development of this country's first two solar power towers. Solar One operated successfully from 1982 to 1988 and proved that power towers work efficiently to produce utility-scale power from sunlight. Solar Two was connected to the utility grid in 1996 and is operating today. Like its predecessor, Solar Two is rated at 10 megawatts. An upgrade of the Solar One plant, Solar Two demonstrates how solar energy can be stored in the form of heat in molten salt for power generation on demand. The experience gained with these two pilot power towers has established a foundation on which industry can develop its first commercial plants. These systems produce electricity on a large scale. They are unique among solar technologies because they can store energy efficiently and cost effectively. They can operate whenever the customer needs power, even after dark or during cloudy weather.

NONE

1998-04-01T23:59:59.000Z

400

Solar power towers  

DOE Green Energy (OSTI)

The high desert near Barstow, California, has witnessed the development of this country`s first two solar power towers. Solar One operated successfully from 1982 to 1988 and proved that power towers work efficiently to produce utility-scale power from sunlight. Solar Two was connected to the utility grid in 1996 and is operating today. Like its predecessor, Solar Two is rated at 10 megawatts. An upgrade of the Solar One plant, Solar Two demonstrates how solar energy can be stored in the form of heat in molten salt for power generation on demand. The experience gained with these two pilot power towers has established a foundation on which industry can develop its first commercial plants. These systems produce electricity on a large scale. They are unique among solar technologies because they can store energy efficiently and cost effectively. They can operate whenever the customer needs power, even after dark or during cloudy weather.

Not Available

1998-04-01T23:59:59.000Z

Note: This page contains sample records for the topic "rotary mechanical power" 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

SaskPower Small Power Producers Program (Saskatchewan, Canada) | Department  

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

SaskPower Small Power Producers Program (Saskatchewan, Canada) SaskPower Small Power Producers Program (Saskatchewan, Canada) SaskPower Small Power Producers Program (Saskatchewan, Canada) < Back Eligibility Commercial Agricultural Industrial Residential Savings Category Solar Buying & Making Electricity Program Info Funding Source SaskPower State Saskatchewan Program Type Performance-Based Incentive Provider SaskPower The Small Power Producers Program accommodates customers who wish to generate up to 100 kilowatts (kW) of electricity for the purpose of offsetting power that would otherwise be purchased from SaskPower or for selling all of the power generated to SaskPower. At the beginning of the application process, you need to choose between one of two options: Sell all of the power you produce to SaskPower, or sell the

402

Karnataka Power Corporation Limited and National Thermal Power Corporation  

Open Energy Info (EERE)

Karnataka Power Corporation Limited and National Thermal Power Corporation Karnataka Power Corporation Limited and National Thermal Power Corporation JV Jump to: navigation, search Name Karnataka Power Corporation Limited and National Thermal Power Corporation JV Place India Sector Wind energy Product India-based wind power project developer. References Karnataka Power Corporation Limited and National Thermal Power Corporation JV[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. Karnataka Power Corporation Limited and National Thermal Power Corporation JV is a company located in India . References ↑ "Karnataka Power Corporation Limited and National Thermal Power Corporation JV" Retrieved from "http://en.openei.org/w/index.php?title=Karnataka_Power_Corporation_Limited_and_National_Thermal_Power_Corporation_JV&oldid=3479

403

Power Quality Waveform Identification  

Science Conference Proceedings (OSTI)

This report describes the desired functionality, attributes and proposed development approach of a power quality (PQ) event identification tool that is planned to be developed under the Electric Power Research Institute (EPRI) Power Quality program P1.BackgroundPQ monitors capture a wide variety of disturbance events, ranging in frequency from direct current to a few megahertz. Advances in PQ monitoring and instrumentation allow continuous measurement and ...

2013-12-17T23:59:59.000Z

404

COSTS OF NUCLEAR POWER  

SciTech Connect

The discussion on the costs of nuclear power from stationary plants, designed primarily for the generation of electricity. deals with those plants in operation, being built, or being designed for construction at an early date. An attempt is made to consider the power costs on the basis of consistent definitions and assumptions for the various nuclear plants and for comparable fossil-fuel plants. Information on several new power reactor projects is included. (auth)

1961-01-01T23:59:59.000Z

405

Interleaved power converter  

DOE Patents (OSTI)

A power converter architecture interleaves full bridge converters to alleviate thermal management problems in high current applications, and may, for example, double the output power capability while reducing parts count and costs. For example, one phase of a three phase inverter is shared between two transformers, which provide power to a rectifier such as a current doubler rectifier to provide two full bridge DC/DC converters with three rather than four high voltage inverter legs.

Zhu, Lizhi (Canton, MI)

2007-11-13T23:59:59.000Z

406

Direct-Cooled Power Electronics Substrate  

SciTech Connect

The goal of the Direct-Cooled Power Electronics Substrate project is to reduce the size and weight of the heat sink for power electronics used in hybrid electric vehicles (HEVs) and plug-in hybrid electric vehicles (PHEVs). The concept proposed in this project was to develop an innovative power electronics mounting structure, model it, and perform both thermal and mechanical finite-element analysis (FEA). This concept involved integrating cooling channels within the direct-bonded copper (DBC) substrate and strategically locating these channels underneath the power electronic devices. This arrangement would then be directly cooled by water-ethylene glycol (WEG), essentially eliminating the conventional heat sink and associated heat flow path. The concept was evaluated to determine its manufacturability, its compatibility with WEG, and the potential to reduce size and weight while directly cooling the DBC and associated electronics with a coolant temperature of 105 C. This concept does not provide direct cooling to the electronics, only direct cooling inside the DBC substrate itself. These designs will take into account issues such as containment of the fluid (separation from the electronics) and synergy with the whole power inverter design architecture. In FY 2008, mechanical modeling of substrate and inverter core designs as well as thermal and mechanical stress FEA modeling of the substrate designs was performed, along with research into manufacturing capabilities and methods that will support the substrate designs. In FY 2009, a preferred design(s) will be fabricated and laboratory validation testing will be completed. In FY 2010, based on the previous years laboratory testing, the mechanical design will be modified and the next generation will be built and tested in an operating inverter prototype.

Wiles, R.; Ayers, C.; Wereszczak, A.

2008-12-23T23:59:59.000Z

407

Mechanical high?vacuum pumps with an oil?free swept volume  

Science Conference Proceedings (OSTI)

In both corrosive and clean duties the widely used oil lubricated rotary pump has certain disadvantages. In corrosive applications aggressive vapors and/or abrasive particles tend to contaminate the lubricant of the pump

H. Wycliffe

1987-01-01T23:59:59.000Z

408

Characterization of MEMS sensor for RF transmitted power measurement  

Science Conference Proceedings (OSTI)

In this report we introduce the procedure for performing a thermo mechanical design and analysis of thermal GaAs-based MEMS devices. It will provide the procedure how thermal analysis should be made and model equations used to describe conduction, convection, ... Keywords: GaAs microsystems, MEMS, power sensor, thermal converter, thermo-mechanical simulations

Jiri Jakovenko; Miroslav Husak

2006-03-01T23:59:59.000Z

409

Welding and Fabrication Critical Factors for New Nuclear Power Plants  

Science Conference Proceedings (OSTI)

Welding and fabrication processes employed for manufacture of critical nuclear power plant components may adversely affect material performance and can potentially increase susceptibility to known degradation mechanisms. This report identifies important welding and fabrication processes for specific materials, assesses their effects on potential degradation mechanisms, and identifies process enhancements that can improve long-term asset management of new nuclear plant components.

2009-12-08T23:59:59.000Z

410

Scientific Papers of the Bureau of Standards Volume 21  

Science Conference Proceedings (OSTI)

... engineering, applied mathematics, statistics, biotechnology, information ... between rotary power and structure ... the light emitted by plants and animals ...

2013-01-23T23:59:59.000Z

411

PowerPoint Presentation  

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

Market Monitoring Market Monitoring Tools Bernie Lesieutre - LBNL Bob Thomas - Cornell October 18, 2006 Washington, D.C. OE Visualization and Controls Peer Review Market Monitoring Tools: Overview Approach: Use dispatch, profit, revenue/offer price, withholding sensitivities to identify opportunities for local advantage that give some participants market power potential. 2006 Technical Work: Extend prior results to large, RTO-scale systems. Initiate large-scale analysis with RTO (PJM). Evaluate reactive power effects on energy markets. Publication and presentation of results. Market Power: Substitutability Market power boils down to the issue of substitutability Locational Advantage: "Load Pockets" Physical network constraints limit supply to certain loads, so that the incremental demand

412

EIA Electric Power Forms  

Gasoline and Diesel Fuel Update (EIA)

Electric Power Forms Electric Power Forms EIA Electric Power Forms Listing of Publicly Available and Confidential Data EIA's statistical surveys encompass each significant electric supply and demand activity in the United States. Most of the electric power survey forms resulting data elements are published, but respondent confidentiality is required. The chart below shows the data elements for each survey form and how each data element is treated in regard to confidentiality. Data Categories Data collection forms EIA- 411 EIA- 826 EIA- 860 EIA- 860M EIA- 861 EIA- 923 Frame Information Utility identification and iocation -- -- -- -- X -- Plant identification and iocation -- -- -- X -- X Generation and fuel Latitude and longitude -- -- X -- -- --

413

Magnets and Power Supplies  

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

Bibliography Up: APS Storage Ring Parameters Previous: Longitudinal Bibliography Up: APS Storage Ring Parameters Previous: Longitudinal bunch profile and Magnets and Power Supplies Dipole Magnets and Power Supplies Value Dipole Number 80+1 No. of power supplies 1 Magnetic length 3.06 m Core length 3.00 m Bending radius 38.9611 m Power supply limit 500.0 A Field at 7 GeV 0.599 T Dipole trim coils Number 80+1 No. of power supplies 80 Magnetic length 3.06 m Core length 3.00 m Power supply limit 20.0 A Maximum field 0.04 T Horizontal Correction Dipoles Number 317 No. of power supplies 317 Magnetic length 0.160 m Core length 0.07 m Power supply limit 150.0 A Maximum field 0.16 T Max. deflection at 7 GeV 1.1 mrad Vertical Corrector Dipoles Number 317 No. of power supplies 317

414

Southwestern Power Administration  

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

7 ANNUAL REPORT 7 ANNUAL REPORT Southwestern Power Administration Letter to the Secretary. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 About Southwestern. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Accomplishments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Supplementary Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

415

Power Purchase Agreements Update  

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

Presentation covers an update on power purchase agreements and is given at the Spring 2011 Federal Utility Partnership Working Group (FUPWG) meeting.

416

Electric Power Annual  

Gasoline and Diesel Fuel Update (EIA)

Table 3.19. Net Generation from Geothermal by State, by Sector, 2011 and 2010 (Thousand Megawatthours) Electric Power Sector Census Division and State All Sectors Electric...

417

PowerPoint Presentation  

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

between alternative fuels and power plant communities needs to be improved Photosynthesis Biomass EtOH, Advanced biofuels Algae Pyrolysis oils Biodiesel, Advanced biofuels...

418

Power conversion technologies  

DOE Green Energy (OSTI)

The Power Conservation Technologies thrust area supports initiatives that enhance the core competencies of the Lawrence Livermore National Laboratory (LLNL) Engineering Directorate in the area of solid-state power electronics. Through partnerships with LLNL programs, projects focus on the development of enabling technologies for existing and emerging programs that have unique power conversion requirements. This year, a multi-disciplinary effort was supported which demonstrated solid-state, high voltage generation by using a dense, monolithic photovoltaic array. This effort builds upon Engineering's strengths in the core technology areas of power conversion, photonics, and microtechnologies.

Haigh, R E

1998-01-01T23:59:59.000Z

419

Electric Power Annual  

Annual Energy Outlook 2012 (EIA)

7. Net Generation from Wind by State, by Sector, 2011 and 2010 (Thousand Megawatthours) Electric Power Sector Census Division and State All Sectors Electric Utilities Independent...

420

Electric Power Annual  

U.S. Energy Information Administration (EIA) Indexed Site

4. Useful Thermal Output by Energy Source: Industrial Combined Heat and Power, 2001 - 2011 (Billion Btus) Period Coal Petroleum Liquids Petroleum Coke Natural Gas Other Gas Other...

Note: This page contains sample records for the topic "rotary mechanical power" 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

Electric Power Annual  

U.S. Energy Information Administration (EIA) Indexed Site

C. Natural Gas: Consumption for Electricity Generation and Useful Thermal Output, by Sector, 2001 - 2011 (Million Cubic Feet) Electric Power Sector Period Total (all sectors)...

422

Electric Power Annual  

U.S. Energy Information Administration (EIA) Indexed Site

F. Coal: Consumption for Electricity Generation and Useful Thermal Output, by Sector, 2001 - 2011 (Billion Btus) Electric Power Sector Period Total (all sectors) Electric Utilities...

423

PowerPoint ????  

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

of methanesteam reforming Strong endothermic reaction reactor water boiler steam Thermal energy combustor coal Steam generation in conventional power plant Synthetic use...

424

Municipal Electric Power (Minnesota)  

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

This section describes energy procurement for local utilities operating in Minnesota and provides a means for Minnesota cities to construct and operate hydroelectric power plants. The statute gives...

425

RM Power Projects  

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

in 1990. The projects serve Colorado, Kansas, Nebraska and Wyoming with 830 MW of installed capacity and 3,360 miles of transmission line. About Power Marketing...

426

ELECTROCHEMICAL POWER FOR TRANSPORTATION  

E-Print Network (OSTI)

but the commercial electric vehicle industry continued tostrong interest in the electric vehicle industry to developTuyl, Effect of Electric Vehicles on the Power Industry, SAE

Cairns, Elton J.

2012-01-01T23:59:59.000Z

427

Electric Power Monthly  

U.S. Energy Information Administration (EIA)

Electric Power Monthly with Data for October 2012. December 2012 . Independent Statistics & Analysis . www.eia.gov . U.S. Department of Energy . ...

428

Electric Power Monthly  

U.S. Energy Information Administration (EIA)

Electric Power Monthly with Data for August 2012. October 2012 . Independent Statistics & Analysis . www.eia.gov . U.S. Department of Energy . ...

429

PowerPoint Presentation  

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

* Grain-oriented electrical steels for high efficiency power and distribution transformers. * Alloys for renewable energy systems. * Alloy design for optimization of...

430

PowerPoint Presentation  

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

June 7-8, 2006 Southwestern Power Administration Drought Operations Guides * Non-Hydro Guide Curve * Inflow trends * Drought Indices * Storage Remaining * Long-term weather...

431

PowerPoint Presentation  

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

Program Objectives Program Objective: Develop novel solvent and process for post- combustion capture of CO 2 from coal-fired power plants with 90% Capture efficiency, and...

432

Electric Power Annual  

Annual Energy Outlook 2012 (EIA)

4. Weighted Average Cost of Fossil Fuels for the Electric Power Industry, 2002 through 2011 Coal Petroleum Natural Gas Total Fossil Bituminous Subbituminous Lignite All Coal Ranks...

433

PowerPoint ?????????  

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

Yongchen Song Dalian University of Technology Dalian, Liaoning China powere@dlut.edu.cn 13889533878 CO 2 Reduction and Ocean Storage Background CO 2 Storage Technology ...

434

Electric Power Annual 2004  

U.S. Energy Information Administration (EIA)

Energy Information Administration/Electric Power Annual 2004 iii Contacts Questions regarding this report may be directed to: Energy Information Administration, EI-53

435

Balancing of Wind Power.  

E-Print Network (OSTI)

?? In the future, renewable energy share, especially wind power share, in electricity generation is expected to increase. Due to nature of the wind, wind (more)

lker, Muhammed Akif

2011-01-01T23:59:59.000Z

436

Southwestern Power Administration  

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

POTC Home Courses Instructors NERC Continuing Education Virtual University POTC Virtual University In an effort to expand electric power training opportunities while saving money...

437

Southwestern Power Administration  

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

POTC Home Courses Instructors NERC Continuing Education Virtual University Power Operations Training Center Instructors All instructors at Southwestern's POTC are NERC-approved...

438

Southwestern Power Administration  

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

POTC Home Courses Instructors NERC Continuing Education Virtual University 2013 Power Operations Training Center Courses Please follow the links on this page to view course...

439

PowerPoint Presentation  

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

- Chuck Herman and Guy Sliker * NGK - Hiroyuke Abe * EPRI funders (Con Edison, CPS Energy, HECO, Hydro One, NYISO, SDG&E, and TVA) 3 2009 Electric Power Research...

440

HYDRAULIC SERVO CONTROL MECHANISM  

DOE Patents (OSTI)

A hydraulic servo control mechanism of compact construction and low fluid requirements is described. The mechanism consists of a main hydraulic piston, comprising the drive output, which is connected mechanically for feedback purposes to a servo control piston. A control sleeve having control slots for the system encloses the servo piston, which acts to cover or uncover the slots as a means of controlling the operation of the system. This operation permits only a small amount of fluid to regulate the operation of the mechanism, which, as a result, is compact and relatively light. This mechanism is particuiarly adaptable to the drive and control of control rods in nuclear reactors. (auth)

Hussey, R.B.; Gottsche, M.J. Jr.

1963-09-17T23:59:59.000Z

Note: This page contains sample records for the topic "rotary mechanical power" 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

PowerPoint Presentation  

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

-9 -6 -3 0 3 6 9 12 15 log Distance (m) -9 -6 -3 0 3 6 Finite Element Analysis Continuum Methods and Mesoscale Modeling Molecular Mechanics Quantum Mechanics m m mm km min...

442

Generalized power domination of graphs  

Science Conference Proceedings (OSTI)

In this paper, we introduce the concept of k-power domination which is a common generalization of domination and power domination. We extend several known results for power domination to k-power domination. Concerning the complexity of the k-power domination ... Keywords: Domination, Electrical network monitoring, Power domination

Gerard Jennhwa Chang; Paul Dorbec; Mickael Montassier; Andr Raspaud

2012-08-01T23:59:59.000Z

443

Combined Heat and Power Basics | Department of Energy  

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

Combined Heat and Power Basics Combined Heat and Power Basics Combined Heat and Power Basics November 1, 2013 - 11:40am Addthis Combined heat and power (CHP), also known as cogeneration, is: A process flow diagram showing efficiency benefits of CHP CHP Process Flow Diagram The concurrent production of electricity or mechanical power and useful thermal energy (heating and/or cooling) from a single source of energy. A type of distributed generation, which, unlike central station generation, is located at or near the point of consumption. A suite of technologies that can use a variety of fuels to generate electricity or power at the point of use, allowing the heat that would normally be lost in the power generation process to be recovered to provide needed heating and/or cooling. CHP technology can be deployed quickly, cost-effectively, and with few

444

Project considerations and design of systems for wheeling cogenerated power  

SciTech Connect

Wheeling electric power, the transmission of electricity not owned by an electric utility over its transmission lines, is a term not generally recognized outside the electric utility industry. Investigation of the term`s origin is intriguing. For centuries, wheel has been used to describe an entire machine, not just individual wheels within a machine. Thus we have waterwheel, spinning wheel, potter`s wheel and, for an automobile, wheels. Wheel as a verb connotes transmission or modification of forces and motion in machinery. With the advent of an understanding of electricity, use of the word wheel was extended to be transmission of electric power as well as mechanical power. Today, use of the term wheeling electric power is restricted to utility transmission of power that it doesn`t own. Cogeneration refers to simultaneous production of electric and thermal power from an energy source. This is more efficient than separate production of electricity and thermal power and, in many instances, less expensive.

Tessmer, R.G. Jr.; Boyle, J.R.; Fish, J.H. III; Martin, W.A.

1994-08-01T23:59:59.000Z

445

Mechanical Seal Assembly  

DOE Patents (OSTI)

An improved mechanical seal assembly is provided for sealing rotating shafts with respect to their shaft housings, wherein the rotating shafts are subject to substantial axial vibrations. The mechanical seal assembly generally includes a rotating sealing ring fixed to the shaft, a non-rotating sealing ring adjacent to and in close contact with the rotating sealing ring for forming an annular seal about the shaft, and a mechanical diode element that applies a biasing force to the non-rotating sealing ring by means of hemispherical joint. The alignment of the mechanical diode with respect to the sealing rings is maintained by a series of linear bearings positioned axially along a desired length of the mechanical diode. Alternative embodiments include mechanical or hydraulic amplification components for amplifying axial displacement of the non-rotating sealing ring and transferring it to the mechanical diode.

Kotlyar, Oleg M.

1999-06-18T23:59:59.000Z

446

Mechanical seal assembly  

DOE Patents (OSTI)

An improved mechanical seal assembly is provided for sealing rotating shafts with respect to their shaft housings, wherein the rotating shafts are subject to substantial axial vibrations. The mechanical seal assembly generally includes a rotating sealing ring fixed to the shaft, a non-rotating sealing ring adjacent to and in close contact with the rotating sealing ring for forming an annular seal about the shaft, and a mechanical diode element that applies a biasing force to the non-rotating sealing ring by means of hemispherical joint. The alignment of the mechanical diode with respect to the sealing rings is maintained by a series of linear bearings positioned axially along a desired length of the mechanical diode. Alternative embodiments include mechanical or hydraulic amplification components for amplifying axial displacement of the non-rotating sealing ring and transferring it to the mechanical diode.

Kotlyar, Oleg M. (Salt Lake City, UT)

2001-01-01T23:59:59.000Z

447

Solid Oxide Fuel Cell Auxiliary Power Unit  

SciTech Connect

Solid Oxide Fuel Cell (SOFC) is an attractive, efficient, clean source of power for transportation, military, and stationary applications. Delphi has pioneered its application as an auxiliary Power Unit (APU) for transportation. Delphi is also interested in marketing this technology for stationary applications. Its key advantages are high efficiency and compatibility with gasoline, natural gas and diesel fuel. It's consistent with mechanizations that support the trend to low emissions. Delphi is committed to working with customers and partners to bring this novel technology to market.

J. Weber

2001-12-12T23:59:59.000Z

448

Noise from cooling towers of power parks  

SciTech Connect

A study is presented of the noise pollution problem for large power parks proposed for the future. Such parks might have an area of about 75 sq. miles, and a generating capacity up to 48000 MW. A comparative analysis has been done for natural and mechanical-draft wet towers as the major sources of acoustic power. Noise radiation from single isolated towers as well as from a dispersed array of towers has been considered for both types of cooling systems. Major noise attenuation effects considered are due to the atmospheric absorption and A- weighting. Conditions of 60F and 70 percent relative humidity in a still atmosphere have been assumed. (auth)

Zakaria, J.; Moore, F.K.

1975-10-14T23:59:59.000Z

449

Green Power Network: News  

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

News News TVA Seeks 126 MW of Renewables in 2014 December 2013 More News More News Subscribe to E-Mail Update Subscribe to e-mail update Events EPA Webinar - The Power of Aggregated Purchasing: How to Green Your Electricity Supply & Save Money January 15, 2014 1:00-2:00 p.m. ET Previous Webinars More News Features Green Power Market Status Report (2011 Data) Featured Green Power Reports News Archive Subscribe to Green Power News TVA Seeks 126 MW of Renewables in 2014 The Tennessee Valley Authority (TVA) is increasing the capacity of its renewable energy power purchase programs by 7 peercent over 2013, with a total capacity of 126 megawatts (MW) being offered. The increase in capacity is being spread across two of TVA's three power purchase programs - Green Power Providers, Solar Solutions Initiative, and the Renewable Standard Offer. The Green Power Providers program has 10 MW of available capacity for the development of small-scale solar, wind, biomass and hydro generation systems that are 50 kilowatts (kW) or less. Within the Green Power Providers program TVA has doubled the residential capacity from 2 MW to 4 MW and will be paying all power providers a total of 14¢ per kilowatt-hour (kWh). The Solar Solutions Initiative program, which focuses on installations between 50 kW and 1 MW, has been expanded from 10 MW of capacity to 16 MW and now pays a premium of 6¢/kWh. TVA's third power purchase program, the Renewable Standard Offer continues to have 100 MW of available capacity for projects between 1 MW and 20 MW. Prior to these program expansions TVA's renewables portfolio consisted of 128 MW of operating or committed solar, 1,500 MW of wind, and 60 MW of biomass.

450

Mechanical Energy and Power Systems Laboratory Mechanical Energy and Power Systems Laboratory Proceedings of the ASME 2009 International Mechanical Engineering Conference and  

E-Print Network (OSTI)

in the past, re- cent developments in Stirling engine technology utilizing rolling diaphragm seals will be demonstrated, by generating a variable radius piston for the liquid piston Stirling engine. The first step Work This cycle optimization process appears to show great promise in decreasing Stirling engine

Van de Ven, James D.

451

Graduate Student Achievements 09-10 MECHANICAL ENGINEERING  

E-Print Network (OSTI)

-Stage Piezoelectric-Based Electrical Energy Generators for Low and Variable Speed Rotary Machinery. SPIE 16th Annual XXVIII Conference and Exposition on Structural Dynamics: Structural Dynamics and Renewable Energynd Annual Meeting of the American Physical Society - Division of Fluid Dynamics. Minneapolis, MN

452

NUCLEAR POWER PLANT  

DOE Patents (OSTI)

A nuclear power plant for use in an airless environment or other environment in which cooling is difficult is described. The power plant includes a boiling mercury reactor, a mercury--vapor turbine in direct cycle therewith, and a radiator for condensing mercury vapor. (AEC)

Carter, J.C.; Armstrong, R.H.; Janicke, M.J.

1963-05-14T23:59:59.000Z

453

Power Technologies Data Book  

SciTech Connect

This report, prepared by NREL's Energy Analysis Office, includes up-to-date information on power technologies, including complete technology profiles. The data book also contains charts on electricity restructuring, power technology forecasts and comparisons, electricity supply, electricity capability, electricity generation, electricity demand, prices, economic indicators, environmental indicators, conversion factors, and selected congressional questions and answers.

Goldstein, L.

2002-09-01T23:59:59.000Z

454

Fusion Power Deployment  

DOE Green Energy (OSTI)

Fusion power plants could be part of a future portfolio of non-carbon dioxide producing energy supplies such as wind, solar, biomass, advanced fission power, and fossil energy with carbon dioxide sequestration. In this paper, we discuss key issues that could impact fusion energy deployment during the last half of this century. These include geographic issues such as resource availability, scale issues, energy storage requirements, and waste issues. The resource needs and waste production associated with fusion deployment in the U.S. should not pose serious problems. One important feature of fusion power is the fact that a fusion power plant should be locatable within most local or regional electrical distribution systems. For this reason, fusion power plants should not increase the burden of long distance power transmission to our distribution system. In contrast to fusion power, regional factors could play an important role in the deployment of renewable resources such as wind, solar and biomass or fossil energy with CO2 sequestration. We examine the role of these regional factors and their implications for fusion power deployment.

J.A. Schmidt; J.M. Ogden

2002-02-06T23:59:59.000Z

455

New baseload power plants  

Science Conference Proceedings (OSTI)

This is a listing of 221 baseload power plant units currently in the planning stage. The list shows the plant owner, capacity, fuel, engineering firm, constructor, major equipment suppliers (steam generator, turbogenerator, and flue gas desulfurization system), partner, and date the plant is to be online. This data is a result of a survey by the journal of power plant owners.

Not Available

1994-04-01T23:59:59.000Z

456

Optimizing Power Factor Correction  

E-Print Network (OSTI)

The optimal investment for power factor correcting capacitors for Kansas Power and Light Company large power contract customers is studied. Since the billing capacity is determined by dividing the real demand by the power factor (the minimum billing capacity is based on 80 percent of the summer peak billing capacity) and the billing capacity is used to determine the number of kilowatt-hours billed at each pricing tier, the power factor affects both the demand and the energy charge. There is almost no information available in the literature concerning recommended power factor corrections for this situation. The general advice commonly given in the past has been that power factor should be corrected to above 0.9 if it is below that value to begin with, but that does not take into account the facts of the situation studied here. Calculations relevant to a commercial consumer of electricity were made for demands of 200, 400, 800, 1,600, 3,200, and 6,400 kW and monthly energy consumption periods of 100, 150, 200, 300, 400, and 500 hours for several capacitor purchase and installation costs. The results are displayed in a series of graphs that enable annual cost savings and payback periods to be readily determined over a range of commonly encountered parameter values. It is found that it is often economically advantageous to correct a power factor to near unity.

Phillips, R. K.; Burmeister, L. C.

1986-06-01T23:59:59.000Z

457

Metagenomics Smart power grid  

E-Print Network (OSTI)

Metagenomics Smart power grid The new weapons workhorse Laser on Mars LOS ALAMOS SCIENCE'll read about a unique collaboration to create a "smart" power grid to accommodate an increasing, TECHNOLOGY, AND ENGINEERING 2 8 14 Dynamic Vision DARHT FULFILLS ITS DESTINY Solar Smart Grid in the Atomic

458

Wind Powering America  

Wind Powering America (EERE)

These news items are notable additions These news items are notable additions to the Wind Powering America Web site. The Wind Powering America Web site reports recent national and state wind market changes by cataloging wind activities such as wind resource maps, small wind consumer's guides, local wind workshops, news articles, and publications in the areas of policy, public power, small wind, Native Americans, agricultural sector, economic development, public lands, and schools. en-us julie.jones@nrel.gov (Julie Jones) http://www.windpoweringamerica.gov/images/wpa_logo_sm.jpg Wind Powering America http://www.windpoweringamerica.gov/ Nominate an Electric Cooperative for Wind Power Leadership Award by January 15 http://www.windpoweringamerica.gov/filter_detail.asp?itemid=4076 http://www.windpoweringamerica.gov/filter_detail.asp?itemid=4076 Mon, 16

459

Fuel Cell Portable Power  

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

Power Power Department of Energy Workshop January 17, 2002 2 Portable Markets - Table of Contents 1. Opportunity Summary for Portable Markets 2. Commercialization Path and Resource Map 3. Value Chain Issues 4. Ballard "State of the Art" 5. Fuel Options and Issues 6. Where can the D.O.E. Help 3 Opportunity Summary - Portable Markets Infrequent Frequent Typical Applications Backup - Batteries & Gensets Peaking power and seasonal use; mobile power Preferred Fuels Hydrocarbon & Hydrogen Hydrocarbon (H2?) Total Available Market Large - But Fractured into many apps Moderate Price Target Low (Pockets willing to pay high $ for certain attributes) Moderate (Lifecycle) Environmental Impact Low Moderate Timing Short term Mid term 4 Technical Challenge Low High Micro Markets H2 Backup Power HC Frequent

460

EIA - Electric Power Data  

U.S. Energy Information Administration (EIA) Indexed Site

Survey-level Detail Data Files Survey-level Detail Data Files Electric power data are collected on survey instruments. Data collection is mandated by Congress to promote sound policymaking, efficient markets, and public understanding. The most widely used data are disseminated in reports, such as the Electric Power Monthly and the Electric Power Annual. Publicly available electric power data is available down to the plant level in the Electricity Data Browser and in detailed spreadsheets by survey below. Description Data availability State-level data (consolidated across forms) Contains electricity generation; fuel consumption; emissions; retail sales, revenue, number of customers, and retail prices; generating capacity; and financial data. 1990-2012 (monthly and annual) Electric power sales and revenue data - monthly (Form EIA-826)

Note: This page contains sample records for the topic "rotary mechanical power" 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

Green Power Network: Publications  

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

News News TVA Seeks 126 MW of Renewables in 2014 December 2013 More News More News Subscribe to E-Mail Update Subscribe to e-mail update Events EPA Webinar - The Power of Aggregated Purchasing: How to Green Your Electricity Supply & Save Money January 15, 2014 1:00-2:00 p.m. ET Previous Webinars More News Features Green Power Market Status Report (2011 Data) Featured Green Power Reports Publications Alphabetical Listing Categorical Listing Chronological Listing Featured Reports The Green Power Network library contains articles and reports on green power, green pricing, and related topics. Whenever possible, we provide a link to publications available online. The publications are grouped by the following topics to help you in your search. If you are aware of other documents that should be added to this list, please notify our Webmaster.

462

Introduction to MEAG Power  

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

Introduction to MEAG Power Introduction to MEAG Power Southeastern Federal Power Alliance Meeting October 9, 2013 Municipal Electric Authority of Georgia ■ Joint Action Agency ─ Formed in 1975 ─ Owns and operates electric generation and transmission facilities ─ Provides bulk electric power to 48 cities and 1 county in the State of Georgia ■ All 49 Participants have reaffirmed 50-year power sales extensions ■ Take-or-pay contracts with participants are court validated contracts with a General Obligation pledge from each city ■ Generation ownership interest in 10 generating units and a transmission system ─ 2,069 MW generating capacity online ─ 500 MW Plant Vogtle Units 3 & 4 under development ■ Schedules the output from the SEPA contracts for the 49 members

463

Western Area Power Administration  

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

Loveland Area Projects November 29-30, 2011 2 Agenda * Overview of Western Area Power Administration * Post-1989 Loveland Area Projects (LAP) Marketing Plan * Energy Planning and Management Program * Development of the 2025 PMI Proposal * 2025 PMI Proposal * 2025 PMI Comment Period & Proposal Information * Questions 3 Overview of Western Area Power Administration (Western) * One of four power marketing administrations within the Department of Energy * Mission: Market and deliver reliable, renewable, cost-based Federal hydroelectric power and related services within a 15-state region of the central and western U.S. * Vision: Provide premier power marketing and transmission services Rocky Mountain Region (RMR) is one of five regional offices 4 Rocky Mountain Region

464

Power module assembly  

SciTech Connect

A power module assembly of the type suitable for deployment in a vehicular power inverter, wherein the power inverter has a grounded chassis, is provided. The power module assembly comprises a conductive base layer electrically coupled to the chassis, an insulating layer disposed on the conductive base layer, a first conductive node disposed on the insulating layer, a second conductive node disposed on the insulating layer, wherein the first and second conductive nodes are electrically isolated from each other. The power module assembly also comprises a first capacitor having a first electrode electrically connected to the conductive base layer, and a second electrode electrically connected to the first conductive node, and further comprises a second capacitor having a first electrode electrically connected to the conductive base layer, and a second electrode electrically connected to the second conductive node.

Campbell, Jeremy B. (Torrance, CA); Newson, Steve (Redondo Beach, CA)

2011-11-15T23:59:59.000Z

465

Power-Law Distributions in Circulating Money: Effect of Preferential Behavior  

E-Print Network (OSTI)

We introduce preferential behavior into the study on statistical mechanics of money circulation. The computer simulation results show that the preferential behavior can lead to power laws on distributions over both holding time and amount of money held by agents. However, some constraints are needed in generation mechanism to ensure the robustness of power-law distributions.

Ding, N; Ding, Ning; Wang, Yougui

2005-01-01T23:59:59.000Z

466

DIRECT FUELCELL/TURBINE POWER PLANT  

DOE Green Energy (OSTI)

This report summarizes the progress made in development of Direct FuelCell/Turbine{reg_sign} (DFC/T{reg_sign}) power plants for generation of clean power at very high efficiencies. The DFC/T power system is based on an indirectly heated gas turbine to supplement fuel cell generated power. The DFC/T power generation concept extends the high efficiency of the fuel cell by utilizing the fuel cell's byproduct heat in a Brayton cycle. Features of the DFC/T system include: electrical efficiencies of up to 75% on natural gas, 60% on coal gas, minimal emissions, simplicity in design, direct reforming internal to the fuel cell, reduced carbon dioxide release to the environment, and potential cost competitiveness with existing combined cycle power plants. Detailed design of the packaged sub-MW alpha DFC/T unit has been completed for mechanical and piping layouts and for structural drawings. Procurement activities continued with delivery of major equipment items. Fabrication of the packaged sub-MW alpha DFC/T unit has been initiated. Details of the process control philosophy were defined and control software programming was initiated.

Hossein Shezel-Ayagh

2005-05-01T23:59:59.000Z

467

DIRECT FUELCELL/TURBINE POWER PLANT  

SciTech Connect

This report summarizes the progress made in development of Direct FuelCell/Turbine{reg_sign} (DFC/T{reg_sign}) power plants for generation of clean power at very high efficiencies. The DFC/T power system is based on an indirectly heated gas turbine to supplement fuel cell generated power. The DFC/T power generation concept extends the high efficiency of the fuel cell by utilizing the fuel cell's byproduct heat in a Brayton cycle. Features of the DFC/T system include: electrical efficiencies of up to 75% on natural gas, 60% on coal gas, minimal emissions, simplicity in design, direct reforming internal to the fuel cell, reduced carbon dioxide release to the environment, and potential cost competitiveness with existing combined cycle power plants. Detailed design of the packaged sub-MW alpha DFC/T unit has been completed for mechanical and piping layouts and for structural drawings. Procurement activities continued with delivery of major equipment items. Fabrication of the packaged sub-MW alpha DFC/T unit has been initiated. Details of the process control philosophy were defined and control software programming was initiated.

Hossein Shezel-Ayagh

2005-05-01T23:59:59.000Z

468

Hybrid power technology for remote military facilities  

DOE Green Energy (OSTI)

The Department of Defense (DoD) operates hundreds of test, evaluation, and training facilities across the US and abroad. Due to the nature of their missions, these facilities are often remote and isolated from the utility grid. The preferred choice for power at these facilities has historically been manned diesel generators. The DoD Photovoltaic Review Committee, estimates that on the order of 350 million gallons of diesel fuel is burned each year to generate the 2000 GWh of electricity required to operate these remote military facilities. Other federal agencies, including the National Park Service and the USDA Forest Service use diesel generators for remote power needs as well. The generation of power diesel generators is both expensive and detrimental to the environment. The augmentation of power from diesel generators with power processing and battery energy storage enhances the efficiency and utilization of the generator resulting in lower fuel consumption and lower generator run- time in proportion to the amount of renewables added. The hybrid technology can both reduce the cost of power and reduce environmental degradation at remote DoD facilities. This paper describes the expected performance and economics of photovoltaic/diesel hybrid systems. Capabilities and status of systems now being installed at DoD facilities are presented along with financing mechanisms available within DoD.

Chapman, R.N.

1996-09-01T23:59:59.000Z

469

Energy storage options for space power  

DOE Green Energy (OSTI)

Including energy storage in a space power supply enhances the feasibility of using thermal power cycles (Rankine or Brayton) and providing high-power pulses. Review of storage options (superconducting magnets, capacitors, electrochemical batteries, thermal phase-change materials (PCM), and flywheels) suggests that flywheels and phase-change devices hold the most promise. Latent heat storage using inorganic salts and metallic eutectics offers thermal energy storage densities of 1500 to 2000 kJ/kg at temperatures to 1675/sup 0/K. Innovative techniques allow these media to operate in direct contact with the heat engine working fluid. Enhancing thermal conductivity and/or modifying PCM crystallization habit provide other options. Flywheels of low-strain graphite and Kevlar fibers have achieved mechanical energy storage densities of 300 kJ/kg. With high-strain graphite fibers, storage densities appropriate to space power needs (approx. 550 kJ/kg) seem feasible. Coupling advanced flywheels with emerging high power density homopolar generators and compulsators could result in electric pulse-power storage modules of significantly higher energy density.

Hoffman, H.W.; Martin, J.F.; Olszewski, M.

1985-01-01T23:59:59.000Z

470

Physical Interpretations of Nilpotent Quantum Mechanics  

E-Print Network (OSTI)

Nilpotent quantum mechanics provides a powerful method of making efficient calculations. More importantly, however, it provides insights into a number of fundamental physical problems through its use of a dual vector space and its explicit construction of vacuum. Physical interpretation of the nilpotent formalism is discussed with respect to boson and baryon structures, the mass-gap problem, zitterbewgung, Berry phase, renormalization, and related issues.

Peter Rowlands

2010-04-09T23:59:59.000Z

471

Enel Green Power- Innovative Geothermal Power for Nevada | Open Energy  

Open Energy Info (EERE)

Enel Green Power- Innovative Geothermal Power for Nevada Enel Green Power- Innovative Geothermal Power for Nevada Jump to: navigation, search OpenEI Reference LibraryAdd to library Periodical: Enel Green Power- Innovative Geothermal Power for Nevada Abstract Two binary geothermal power plants inaugurated today with a total capacity of 65 MW: They will generate enough energy to meet the needs of some 40 thousand American households. Author Hank Sennott Published Press Release, 04/15/2009 DOI Not Provided Check for DOI availability: http://crossref.org Online Internet link for Enel Green Power- Innovative Geothermal Power for Nevada Citation Hank Sennott. 04/15/2009. Enel Green Power- Innovative Geothermal Power for Nevada. Press Release. 1-2. Retrieved from "http://en.openei.org/w/index.php?title=Enel_Green_Power-_Innovative_Geothermal_Power_for_Nevada&oldid=680547"

472

It's all About Power and those Pesky Power Vampires  

Science Conference Proceedings (OSTI)

In this issue of New Products, the editors cover an energy source that provides power for emergency situations and a car that helps to train drivers to drive energy efficiently. They also examine a power strip that defeats so-called 'power vampires' ... Keywords: Power vampires, smart power, Belkin, Truevert, Honda Insight, Husqvarna, Automower Solar Hybrid, Freeplay, Weza

Maria Ebling; Mark Corner

2009-01-01T23:59:59.000Z

473

Mechanics of Funding matrix  

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

FUNDING MECHANISMS FUNDING MECHANISMS Funding Mechanism Advantages Disadvantages Comments 1. From Doe to regional organizations * * Facilitates a broad, regional approach to planning and implementation that enhances consistency and uniformity * * Especially beneficial for new programs where early planning is needed * * Simplifies communication for DOE to have only one point of contact for information and discussion * * Cooperative agreement mechanism has proven relatively simple to administer * * Approach would require modification for Tribes * * Would also require that funding be provided to individual States to enable them to participate in the process, since planning authority and responsibility rests with the individual State * * Differs from OCRWM approach to 180(c) funding * * Introduces another layer of

474

Mechanical Behavior II  

Science Conference Proceedings (OSTI)

Mar 5, 2013 ... Impact of Cooling Rate on Low Silver Sn-Ag-Cu Solder Interconnect Board Level Mechanical Shock and Thermal Cycling Performance:...

475

Structures and Mechanical Properties  

Science Conference Proceedings (OSTI)

Mar 7, 2013... Refractory High-entropy Alloy: Chien-Chang Juan1; Jien-Wei Yeh1; ... The main wear mechanism was adhesive wear in deionized water,...

476

Mechanical Behavior I  

Science Conference Proceedings (OSTI)

Mar 5, 2013... (IMC) is essential for understandingthe mechanical behavior of the ... Reliability and by the SHaRE User Facility, Scientific User Facilities...

477

Electric power annual 1992  

SciTech Connect

The Electric Power Annual presents a summary of electric utility statistics at national, regional and State levels. The objective of the publication is to provide industry decisionmakers, government policymakers, analysts and the general public with historical data that may be used in understanding US electricity markets. The Electric Power Annual is prepared by the Survey Management Division; Office of Coal, Nuclear, Electric and Alternate Fuels; Energy Information Administration (EIA); US Department of Energy. ``The US Electric Power Industry at a Glance`` section presents a profile of the electric power industry ownership and performance, and a review of key statistics for the year. Subsequent sections present data on generating capability, including proposed capability additions; net generation; fossil-fuel statistics; retail sales; revenue; financial statistics; environmental statistics; electric power transactions; demand-side management; and nonutility power producers. In addition, the appendices provide supplemental data on major disturbances and unusual occurrences in US electricity power systems. Each section contains related text and tables and refers the reader to the appropriate publication that contains more detailed data on the subject matter. Monetary values in this publication are expressed in nominal terms.

Not Available

1994-01-06T23:59:59.000Z

478

Carbon Dioxide Capture from Coal-Fired Power Plants: A Real Options Analysis Ram Chandra Sekar  

E-Print Network (OSTI)

Carbon Dioxide Capture from Coal-Fired Power Plants: A Real Options Analysis by Ram Chandra Sekar;2 #12;3 Carbon Dioxide Capture in Coal-Fired Power Plants: A Real Options Analysis by Ram Chandra Sekar and Master of Science in Mechanical Engineering ABSTRACT Investments in three coal-fired power generation

479

Design of a High Temperature Small Particle Solar Receiver for Powering a Gas Turbine Engine  

E-Print Network (OSTI)

Design of a High Temperature Small Particle Solar Receiver for Powering a Gas Turbine Engine Dr. Fletcher Miller SDSU Department of Mechanical Engineering Abstract Solar thermal power for electricity will describe the design of a high temperature solar receiver capable of driving a gas turbine for power

Ponce, V. Miguel

480

Fuzzy Logic Controller for Enhancement of Transient Stability in Multi Machine AC-DC Power Systems  

Science Conference Proceedings (OSTI)

This paper discusses the impact of HVDC on Power System Stability and proposes a new type of control mechanism based on Fuzzy set theory to augment dynamic performance of a multi-machine power system. To have good damping characteristics over a wide ... Keywords: HVDC, Power System Stability, Multi-Machine Stability, Fuzzy Logic Controller

M. Uma Vani; P. V. Ramana Rao

2010-11-01T23:59:59.000Z

Note: This page contains sample records for the topic "rotary mechanical power" 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.


481

PEPON: performance-aware hierarchical power budgeting for NoC based multicores  

Science Conference Proceedings (OSTI)

Targeting NoC based multicores, we propose a two-level power budget distribution mechanism, called PEPON, where the first level distributes the overall power budget of the multicore system among various types of on-chip resources like the cores, caches, ... Keywords: noc-based multicores, performance, power budgeting

Akbar Sharifi; Asit K. Mishra; Shekhar Srikantaiah; Mahmut Kandemir; Chita R. Das

2012-09-01T23:59:59.000Z

482

Water Disclosure in the Electric Power Industry  

Science Conference Proceedings (OSTI)

This topical brief provides an overview of two of the prominent water disclosure mechanisms affecting the electric power industry, the Global Reporting Initiative (GRI) and Carbon Disclosure Project Water Disclosure (CDP Water), and identifies connections to relevant EPRI research. The document was developed through EPRI's Program 55 Strategic Water Issues, and the Energy Sustainability Interest Group. This collaborative interest group was launched in 2008 and is made up of nearly 30 companies representi...

2011-06-17T23:59:59.000Z

483

Fossil Power Plant Components Failure Analysis Guideline  

Science Conference Proceedings (OSTI)

The goal of engineering design is to obviate failures. However, this goal is only partially achievable because of the balance between cost and risk, potential deterioration during service, and the departure of actual operation from design assumptions. Thus, utility engineers are periodically faced with failures that span the gamut of power plant equipment and economic and safety consequences. Reaching a proper conclusion about the failure mechanism and the associated root cause is central to the post-fai...