National Library of Energy BETA

Sample records for max motor speed

  1. Magnetically Coupled Adjustable Speed Motor Drives - Motor Tip Sheet #13

    SciTech Connect (OSTI)

    2008-07-01

    Alternating current electric motors rotate at a nearly constant speed that is determined by motor design and line frequency. Energy savings of 50% or more may be available when fixed speed systems are modified to allow the motor speed to match variable load requirements of a centrifugal fan or pump.

  2. Magnetically Coupled Adjustable Speed Motor Drives

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

    Magnetically Coupled Adjustable Speed Motor Drives Alternating current electric motors rotate at a nearly constant speed that is determined by motor design and line frequency. Energy savings of 50% or more may be available when fxed speed systems are modifed to allow for variable load requirements of a centrifugal fan or pump. 1 Loads that vary by 30% of full load over time offer good opportunities for cost-effective adjustable speed drive (ASD) retrofts. Market assessment studies indicate that

  3. High-speed electrical motor evaluation

    SciTech Connect (OSTI)

    Not Available

    1989-02-03

    Under this task, MTI conducted a general review of state-of-the-art high-speed motors. The purpose of this review was to assess the operating parameters, limitations and performance of existing motor designs, and to establish commercial sources for a motor compatible with the requirements of the Brayton-cycle system. After the motor requirements were established, a list of motor types, manufacturers and designs capable of achieving the requisite performance was compiled. This list was based on an in-house evaluation of designs. Following the establishment of these options, a technical evaluation of the designs selected was conducted. In parallel with their evaluations, MTI focused on the establishment of commercial sources.

  4. Magnetically Coupled Adjustable Speed Motor Drives | Department of Energy

    Broader source: Energy.gov (indexed) [DOE]

    Alternating current electric motors rotate at a nearly constant speed that is determined by motor design and line frequency. Energy savings of 50% or more may be available when fixed speed systems are modified to allow the motor speed to match variable load requirements of a centrifugal fan or pump. This tip sheet describes the advantages of magnetically coupled ASDs and provides suggested actions. Motor Systems Tip Sheet #13 PDF icon Magnetically Coupled Adjustable Speed Motor Drives (November

  5. Variable current speed controller for eddy current motors

    DOE Patents [OSTI]

    Gerth, H.L.; Bailey, J.M.; Casstevens, J.M.; Dixon, J.H.; Griffith, B.O.; Igou, R.E.

    1982-03-12

    A speed control system for eddy current motors is provided in which the current to the motor from a constant frequency power source is varied by comparing the actual motor speed signal with a setpoint speed signal to control the motor speed according to the selected setpoint speed. A three-phase variable voltage autotransformer is provided for controlling the voltage from a three-phase power supply. A corresponding plurality of current control resistors is provided in series with each phase of the autotransformer output connected to inputs of a three-phase motor. Each resistor is connected in parallel with a set of normally closed contacts of plurality of relays which are operated by control logic. A logic circuit compares the selected speed with the actual motor speed obtained from a digital tachometer monitoring the motor spindle speed and operated the relays to add or substract resistance equally in each phase of the motor input to vary the motor current to control the motor at the selected speed.

  6. Magnetically Coupled Adjustable Speed Motor Drives

    SciTech Connect (OSTI)

    Not Available

    2008-07-01

    This is one in a series of tip sheets to help manufacturers optimize their industrial motor and motor-driven systems.

  7. Extended cage adjustable speed electric motors and drive packages

    DOE Patents [OSTI]

    Hsu, J.S.

    1999-03-23

    The rotor cage of a motor is extended, a second stator is coupled to this extended rotor cage, and the windings have the same number of poles. The motor torque and speed can be controlled by either injecting energy into or extracting energy out from the rotor cage. The motor produces less harmonics than existing doubly-fed motors. Consequently, a new type of low cost, high efficiency drive is produced. 12 figs.

  8. Extended cage adjustable speed electric motors and drive packages

    DOE Patents [OSTI]

    Hsu, John S. (Oak Ridge, TN)

    1999-01-01

    The rotor cage of a motor is extended, a second stator is coupled to this extended rotor cage, and the windings have the same number of poles. The motor torque and speed can be controlled by either injecting energy into or extracting energy out from the rotor cage. The motor produces less harmonics than existing doubly-fed motors. Consequently, a new type of low cost, high efficiency drive is produced.

  9. System and method for motor speed estimation of an electric motor

    DOE Patents [OSTI]

    Lu, Bin; Yan, Ting; Luebke, Charles John; Sharma, Santosh Kumar

    2012-06-19

    A system and method for a motor management system includes a computer readable storage medium and a processing unit. The processing unit configured to determine a voltage value of a voltage input to an alternating current (AC) motor, determine a frequency value of at least one of a voltage input and a current input to the AC motor, determine a load value from the AC motor, and access a set of motor nameplate data, where the set of motor nameplate data includes a rated power, a rated speed, a rated frequency, and a rated voltage of the AC motor. The processing unit is also configured to estimate a motor speed based on the voltage value, the frequency value, the load value, and the set of nameplate data and also store the motor speed on the computer readable storage medium.

  10. Minimize Adverse Motor and Adjustable Speed Drive Interactions

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

    Minimize Adverse Motor and Adjustable Speed Drive Interactions Electronic adjustable speed drives (ASDs) are extremely effcient and valuable assets to motor systems. They allow precise process control and provide energy savings within systems that do not need to operate continuously at full output. The most common ASD design sold today is the pulse-width-modulated (PWM) variable frequency drive (VFD) with a fast-rise-time insulated gate bipolar transistor (IGBT) to reduce switching losses and

  11. Dual power, constant speed electric motor system

    DOE Patents [OSTI]

    Kirschbaum, Herbert S. (Asheville, NC)

    1984-01-01

    A dual capacity permanent split capacitor electric motor system is provided with a stator having main and auxiliary windings. The main stator winding includes two winding sections which are connected in parallel with each other and across a pair of line terminals while the auxiliary winding is connected in series with a capacitor to form a circuit branch which is connected between the line terminals for operation at a first output power level. Switching means are provided to reconnect the main stator winding sections in series with each other and in series with a second capacitor to form a circuit branch which is connected between the line terminals while the stator auxiliary winding is connected directly between the line terminals for operation at a second output power level. Automatic rotation reversal occurs when the motor switches from the first to the second output power level.

  12. Dual power, constant speed electric motor system

    DOE Patents [OSTI]

    Kirschbaum, H.S.

    1984-07-31

    A dual capacity permanent split capacitor electric motor system is provided with a stator having main and auxiliary windings. The main stator winding includes two winding sections which are connected in parallel with each other and across a pair of line terminals while the auxiliary winding is connected in series with a capacitor to form a circuit branch which is connected between the line terminals for operation at a first output power level. Switching means are provided to reconnect the main stator winding sections in series with each other and in series with a second capacitor to form a circuit branch which is connected between the line terminals while the stator auxiliary winding is connected directly between the line terminals for operation at a second output power level. Automatic rotation reversal occurs when the motor switches from the first to the second output power level. 6 figs.

  13. Minimize Adverse Motor and Adjustable Speed Drive Interactions - Motor Tip Sheet #15

    SciTech Connect (OSTI)

    2008-07-01

    Electronic adjustable speed drives (ASDs) are an extremely efficient and valuable asset to motor systems. They allow precise process control and provide energy savings within systems that do not need to continuously operate at full output.

  14. Advanced Ultra-High Speed Motor for Drilling

    SciTech Connect (OSTI)

    Impact Technologies LLC; University of Texas at Arlington

    2007-03-31

    Three (3) designs have been made for two sizes, 6.91 cm (2.72 inch) and 4.29 cm (1.69 inch) outer diameters, of a patented inverted configured Permanent Magnet Synchronous Machines (PMSM) electric motor specifically for drilling at ultra-high rotational speeds (10,000 rpm) and that can utilize advanced drilling methods. Benefits of these motors are stackable power sections, full control (speed and direction) of downhole motors, flow hydraulics independent of motor operation, application of advanced drilling methods (water jetting and abrasive slurry jetting), and the ability of signal/power electric wires through motor(s). Key features of the final designed motors are: fixed non-rotating shaft with stator coils attached; rotating housing with permanent magnet (PM) rotor attached; bit attached to rotating housing; internal channel(s) in a nonrotating shaft; electric components that are hydrostatically isolated from high internal pressure circulating fluids ('muds') by static metal to metal seals; liquid filled motor with smoothed features for minimized turbulence in the motor during operation; and new inverted coated metal-metal hydrodynamic bearings and seals. PMSM, Induction and Switched Reluctance Machines (SRM), all pulse modulated, were considered, but PMSM were determined to provide the highest power density for the shortest motors. Both radial and axial electric PMSM driven motors were designed with axial designs deemed more rugged for ultra-high speed, drilling applications. The 6.91 cm (2.72 inch) OD axial inverted motor can generate 4.18KW (5.61 Hp) power at 10,000 rpm with a 4 Nm (2.95 ft-lbs) of torque for every 30.48 cm (12 inches) of power section. The 6.91 cm (2.72 inch) OD radial inverted motor can generate 5.03 KW (6.74 Hp) with 4.8 Nm (3.54 ft-lb) torque at 10,000 rpm for every 30.48 cm (12 inches) of power section. The 4.29 cm (1.69 inch) OD radial inverted motor can generate 2.56 KW (3.43 Hp) power with 2.44 Nm (1.8 ft-lb) torque at full speed 10,000 rpm for every 30.48 cm (12 inches) of power section. Operating conditions are 300 voltage AC at the motor leads. Power voltage losses in the cables/wirelines to the motor(s) are expected to be about 10% for 5000 feet carrying 2 amperes. Higher voltages and better insulators can lower these losses and carry more amperes. Cutting elements for such high tip velocities are currently not available, consequently these motors will not be built at this time. However, 7.62 cm (3 inch) OD, low speed, PMSM radial electric motors based on this project design are being built under a 2006 Oklahoma Center for the Advancement of Science and Technology 'proof of concept' grant.

  15. Method and system for determining induction motor speed

    DOE Patents [OSTI]

    Parlos, Alexander G.; Bharadwaj, Raj M.

    2004-03-30

    A non-linear, semi-parametric neural network-based adaptive filter is utilized to determine the dynamic speed of a rotating rotor within an induction motor, without the explicit use of a speed sensor, such as a tachometer, is disclosed. The neural network-based filter is developed using actual motor current measurements, voltage measurements, and nameplate information. The neural network-based adaptive filter is trained using an estimated speed calculator derived from the actual current and voltage measurements. The neural network-based adaptive filter uses voltage and current measurements to determine the instantaneous speed of a rotating rotor. The neural network-based adaptive filter also includes an on-line adaptation scheme that permits the filter to be readily adapted for new operating conditions during operations.

  16. Minimize Adverse Motor and Adjustable Speed Drive Interactions

    Broader source: Energy.gov [DOE]

    Electronic adjustable speed drives (ASDs) are extremely efficient and valuable assets to motor systems. They allow precise process control and provide energy savings within systems that do not need to operate continuously at full output. This tip sheet discusses design considerations to take into account when considering ASDs and offers suggested actions.

  17. Adjustable Speed Drive Part-Load Efficiency - Motor Tip Sheet #11

    SciTech Connect (OSTI)

    2008-07-01

    An adjustable speed drive (ASD) is a device that controls the rotational speed of motor-driven equipment. Variable frequency drives (VFDs), the most common type of ASDs, efficiently meet varying process requirements by adjusting the frequency and voltage of the power supplied to an AC motor to enable it to operate over a wide speed range. External sensors monitor flow, liquid levels, or pressure and then transmit a signal to a controller that adjusts the frequency and speed to match process requirements.

  18. Minimize Adverse Motor and Adjustable Speed Drive Interactions

    SciTech Connect (OSTI)

    Not Available

    2008-07-01

    This is one in a series of tip sheets to help manufacturers optimize their industrial motor and motor-driven systems.

  19. Variable-Speed, Low-Cost Motor for Residential HVAC Systems | Department of

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

    Energy Variable-Speed, Low-Cost Motor for Residential HVAC Systems Variable-Speed, Low-Cost Motor for Residential HVAC Systems Lower-Cost, Variable-Speed Electric Motor Improves Energy Efficiency In 2011, the U.S. industrial, commercial, and residential sectors consumed ~13.5 quad of electricity, of which an estimated 7.8 quad (58%) was consumed by applications using electric motors in machinery; process cooling; and refrigeration, space heating, ventilation, and air-conditioning. As energy

  20. Evaluation of Retrofit Variable-Speed Furnace Fan Motors

    SciTech Connect (OSTI)

    Aldrich, R.; Williamson, J.

    2014-01-01

    In conjunction with the New York State Energy Research and Development Authority (NYSERDA) and Proctor Engineering Group, Ltd. (PEG), the Consortium for Advanced Residential Buildings (CARB) has evaluated the Concept 3™ replacement motors for residential furnaces. These brushless, permanent magnet (BPM) motors can use much less electricity than their PSC (permanent split capacitor) predecessors. This evaluation focuses on existing homes in the heating-dominated climate of upstate New York with the goals of characterizing field performance and cost effectiveness. The project includes eight homes in and near Syracuse, NY. Tests and monitoring was performed both before and after fan motors were replaced. Results indicate that BPM replacement motors will be most cost effective in HVAC systems with longer run times and relatively low duct static pressures. More dramatic savings are possible if occupants use the fan-only setting when there is no thermal load. There are millions of cold-climate, U.S. homes that meet these criteria, but the savings in most homes tested in this study were modest.

  1. Constant power speed range extension of surface mounted PM motors

    DOE Patents [OSTI]

    Lawler, Jack Steward; Bailey, John Milton

    2001-01-01

    A circuit and method for controlling a rotating machine (11) in the constant horsepower range above base speed uses an inverter (15) having SCR's (T1-T6) connected in series with the primary commutation switches (Q1-Q6) to control turn off of the primary commutation switches and to protect the primary commutation switches from faults. The primary commutation switches (Q1-Q6) are controlled by a controller (14), to fire in advance or after a time when the back emf equals the applied voltage, and then to turn off after a precise dwell time, such that suitable power is developed at speeds up to at least six times base speed.

  2. Evaluation of Retrofit Variable-Speed Furnace Fan Motors

    SciTech Connect (OSTI)

    Aldrich, R.; Williamson, J.

    2014-01-01

    In conjunction with the New York State Energy Research and Development Authority (NYSERDA) and Proctor Engineering Group, Ltd. (PEG), the Consortium for Advanced Residential Buildings (CARB) has evaluated the Concept 3 (tm) replacement motors for residential furnaces. These brushless, permanent magnet (BPM) motors can use much less electricity than their PSC (permanent split capacitor) predecessors. This evaluation focuses on existing homes in the heating-dominated climate of upstate New York with the goals of characterizing field performance and cost-effectiveness. The results of this study are intended to be useful to home performance contractors, HVAC contractors, and home efficiency program stakeholders. The project includes eight homes in and near Syracuse, NY. Tests and monitoring was performed both before and after fan motors were replaced. Average fan power reductions were approximately 126 Watts during heating and 220 Watts during cooling operation. Over the course of entire heating and cooling seasons, these translated into average electric energy savings of 163 kWh. Average cost savings were $20 per year. Homes where the fan was used outside of heating and cooling mode saved an additional $42 per year on average. Results indicate that BPM replacement motors will be most cost-effective in HVAC systems with longer run times and relatively low duct static pressures. More dramatic savings are possible if occupants use the fan-only setting when there is no thermal load. There are millions of cold-climate, U.S. homes that meet these criteria, but the savings in most homes tested in this study were modest.

  3. Development of a super high speed motor-generator and controller

    SciTech Connect (OSTI)

    Hong, Do-Kwan Ahn, Min-Hyuk; Joo, Dae-Suk; Woo, Byung-Chul; Koo, Dae-Hyun

    2014-05-07

    To develop a super high speed motor-generator, it is essential to deal with magnetic analysis, dynamic analysis, and experimental evaluation of the heart of the MTG (Microturbine Generator) system, the motor-generator. An amorphous core is applied to a stator core for reduction of iron loss at high speed, and the motor-generator is analyzed with considerations focused on magnetic losses and the statistical optimum design. The performance of the amorphous core is validated by the analysis and experiment by back-to-back tests considering the AC load. Rotor dynamics is performed for dynamic stability at high speed using transient analysis orbit diagrams and compared with the experimental results. The simulation results of the generator are compared with the experiment. Also a super high speed controller of the MTG system is developed using a sensorless algorithm, power stack, gate driver, digital signal processing, analog circuit, and radiation heat design. Based on these results, a high speed motor-generator and controller are successfully developed.

  4. The pulsed linear induction motor concept for high-speed trains

    SciTech Connect (OSTI)

    Turman, B.N.; Marder, B.M.; Rohwein, G.J.; Aeschliman, D.P.; Kelley, J.B.; Cowan, M.; Zimmerman, R.M.

    1995-06-01

    The SERAPBIM (SEgmented RAil PHased Induction Motor) concept is a linear induction motor concept which uses rapidly-pulsed magnetic fields and a segmented reaction rail, as opposed to low-frequency fields and continuous reaction rails found in conventional linear induction motors. These improvements give a high-traction, compact, and efficient linear motor that has potential for advanced high speed rail propulsion. In the SERAPBIM concept, coils on the vehicle push against a segmented aluminum rail, which is mounted on the road bed. Current is pulsed as the coils cross an edge of the segmented rail, inducing surface currents which repel the coil. The coils must be pulsed in synchronization with the movement by reaction rail segments. This is provided by a sense-and-fire circuit that controls the pulsing of the power modulators. Experiments were conducted to demonstrate the feasibility of the pulsed induction motor and to collect data that could be used for scaling calculations. A 14.4 kg aluminum plate was accelerated down a 4 m track to speeds of over 15 m/sec with peak thrust up to 18 kN per coilset. For a trainset capable of 200 mph speed, the SERAPHIM concept design is based on coils which are each capable of producing up to 3.5 kN thrust, and 30 coil pairs are mounted on each power car. Two power cars, one at each end of the train, provide 6 MW from two gas turbine prime power units. The thrust is about 210.000 N and is essentially constant up to 200 km/hr since wheel slippage does not limit thrust as with conventional wheeled propulsion. A key component of the SERAPHIM concept is the use of passive wheel-on-rah support for the high speed vehicle. Standard steel wheels are capable of handling over 200 mph. The SERAPHIM cost is comparable to that for steel-wheel high-speed rail, and about 10% to 25% of the projected costs for a comparable Maglev system.

  5. Max Schulze

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Max Schulze Max Schulze-Extreme unicycling The unicycle that Los Alamos student intern Max Schulze and his brother had given their dad for Father's Day in 2005 did not get much use until Schulze tried it and got hooked. Today, he is a three-time unicycling world champion, with world wins in New Zealand in 2010, Italy in 2012 and Canada in 2014. June 9, 2015 Max Schulze Max Schulze "I really thrive in competitive and demo environments, often performing better there than I do otherwise."

  6. Indirect sensing for rotor flux position of permanent magnet AC motors operating over a wide speed range

    SciTech Connect (OSTI)

    Moreira, J.C.

    1996-11-01

    This paper describes an indirect sensing, or sensorless, method for rotor flux position for brushless permanent magnet (BPM) motors operating over a wide speed range, while keeping maximum torque per ampere and/or maximum efficiency capabilities. The method described is particularly applicable to trapezoidal back emf type of BPM motors. The typical trapezoidal waveform of the motor internal voltages (or back emf) contains a fundamental and higher order frequency harmonics. In particular, the third harmonic component is extracted from the stator phase voltages while the fundamental and other polyphase components are eliminated via a simple summation of the three phase voltages. The resulting third harmonic signal keeps a constant phase relationship with the rotor flux for any motor speed and load condition, and is practically free of noise that can be introduced by the inverter switching, making this a robust sensing method. In contrast with indirect sensing methods based on detection of the back-emf signal that require heavy filtering, the third harmonic signal needs only a small amount of filtering to eliminate the switching frequency and its side bands. As a result, the method described here is not sensitive to filtering delays, allowing the motor to achieve a good performance over a wide speed range. Motor starting is also superior with this method since the third harmonic signal can be detected and processed at lower speeds than for the conventional method of back-emf sensing. Moreover, an alternative way to acquire the third harmonic signal without the need to access the stator neutral terminal is discussed. This is particularly interesting with the motor neutral connection is not available or expensive to have access. The third harmonic indirect sensing scheme is implemented in the laboratory and compared to a conventional back-emf sensing method.

  7. Max Schulze

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Max Schulze June 9, 2015 Extreme unicycling The unicycle that Los Alamos student intern Max Schulze and his brother had given their dad for Father's Day in 2005 did not get much use until Schulze tried it and got hooked. Today, he is a three-time unicycling world champion, with world wins in New Zealand in 2010, Italy in 2012 and Canada in 2014. "My main competitive unicycling event is 'trials,'" Schulze explains, "which requires riders to navigate technically challenging obstacle

  8. Power applications of high-temperature superconductivity: Variable speed motors, current switches, and energy storage for end use

    SciTech Connect (OSTI)

    Hawsey, R.A. [Oak Ridge National Lab., TN (United States); Banerjee, B.B.; Grant, P.M. [Electric Power Research Inst., Palo Alto, CA (United States)

    1996-08-01

    The objective of this project is to conduct joint research and development activities related to certain electric power applications of high-temperature superconductivity (HTS). The new superconductors may allow development of an energy-efficient switch to control current to variable speed motors, superconducting magnetic energy storage (SMES) systems, and other power conversion equipment. Motor types that were considered include induction, permanent magnet, and superconducting ac motors. Because it is impractical to experimentally alter certain key design elements in radial-gap motors, experiments were conducted on an axial field superconducting motor prototype using 4 NbTi magnets. Superconducting magnetic energy storage technology with 0.25--5 kWh stored energy was studied as a viable solution to short duration voltage sag problems on the customer side of the electric meter. The technical performance characteristics of the device wee assembled, along with competing technologies such as active power line conditioners with storage, battery-based uninterruptible power supplies, and supercapacitors, and the market potential for SMES was defined. Four reports were prepared summarizing the results of the project.

  9. Motors

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    motor fails? When a motor fails, the user or owner faces three choices: to rewind to a lower efficiency; to rewind and maintain the original efficiency; or to replace it with a...

  10. Permanent-Magnet Adjustable-Speed Motors John S . Hsu (Htsui...

    Office of Scientific and Technical Information (OSTI)

    ... A four-channel, dc to 175 MHz, digital storage scope is used. It has a GPIB (IEEE488) ... Permanent Magnet AC Motor Performance by Means of Magnetic Circuits," IEEE Paper No. ...

  11. Vehicle Technologies Office Merit Review 2015: Multi-Speed Range Electric Motor R&D

    Broader source: Energy.gov [DOE]

    Presentation given by Oak Ridge National Laboratory at 2015 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting about multi-speed...

  12. Technology Solutions Case Study: Replacement of Variable-Speed Motors for Furnaces

    SciTech Connect (OSTI)

    2013-02-01

    In conjunction with the New York State Energy Research and Development Authority (NYSERDA) and Proctor Engineering Group, Ltd. (PEG), the Consortium for Advanced Residential Buildings (CARB) evaluated the Concept 3™ replacement motors for residential furnaces in eight homes in Syracuse, NY. These brushless, permanent magnet (BPM) motors can use much less electricity than their PSC (permanent split capacitor) predecessors. This evaluation focuses on existing homes in the heating-dominated climate of upstate New York with the goals of characterizing field performance and cost-effectiveness. The results of this study are intended to be useful to home performance contractors, HVAC contractors, and home efficiency program stakeholders. Tests and monitoring was performed both before and after fan motors were replaced. Average fan power reductions were approximately 126 Watts during heating and 220 Watts during cooling operation. Over the course of entire heating and cooling seasons, these translated into average electric energy savings of 163 kWh, with average cost savings of $20 per year. Homes where the fan was used outside of heating and cooling mode saved an additional $42 per year on average. Results indicate that BPM replacement motors will be most cost-effective in HVAC systems with longer run times and relatively low duct static pressures. More dramatic savings are possible if occupants use the fan-only setting when there is no thermal load.

  13. Replacement, Variable-Speed Motors for Furnaces, Syracuse, New York (Fact Sheet), Building America Case Study: Technology Solutions for New and Existing Homes, Building Technologies Office (BTO)

    Energy Savers [EERE]

    Replacement of Variable-Speed Motors for Furnaces Syracuse, New York PROJECT INFORMATION Project Name: Evaluation of Concept 3 BPM motors Location: Syracuse, NY Partners: New York State Energy Research and Development Authority (NYSERDA) www.nyserda.org Proctor Engineering Group (PEG) www.proctoreng.com Tag Mechanical www.taghomeperformance.com/ Consortium for Advanced Residential Buildings www.carb-swa.com Building Component: HVAC Application: Retrofit, homes with forced air distribution Year

  14. Electric Motors

    Broader source: Energy.gov [DOE]

    Section 313 of the Energy Independence and Security Act (EISA) of 2007 raised Federal minimum efficiency standards for general-purpose, single-speed, polyphase induction motors of 1 to 500 horsepower (hp). This new standard took effect in December 2010. The new minimum efficiency levels match FEMP's performance requirement for these motors.

  15. Summary Max Total Units

    Energy Savers [EERE]

    Summary Max Total Units *If All Splits, No Rack Units **If Only FW, AC Splits 1000 52 28 28 2000 87 59 35 3000 61 33 15 4000 61 33 15 Totals 261 153 93 ***Costs $1,957,500.00 $1,147,500.00 $697,500.00 Notes: added several refrigerants removed bins from analysis removed R-22 from list 1000lb, no Glycol, CO2 or ammonia Seawater R-404A only * includes seawater units ** no seawater units included *** Costs = (total units) X (estimate of $7500 per unit) 1000lb, air cooled split systems, fresh water

  16. Adjustable Speed Drive Part-Load Efficiency

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

    Adjustable Speed Drive Part-Load Efficiency An adjustable speed drive (ASD) is a device that controls the rotational speed of motor-driven equipment. Variable frequency drives (VFDs), the most common type of ASD, are solid-state electronic motor controllers that effciently meet varying process requirements by adjusting the frequency and voltage of power supplied to an alternating current (AC) motor to enable it to operate over a wide speed range. External sensors monitor fow, liquid levels, or

  17. Ultra-Efficient and Power-Dense Electric Motors

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

    and Power-Dense Electric Motors Advanced Electric Motors Offer Large Energy Savings in Industrial Applications Pumps, fans, and compressors use more than 60% of industrial electric motor energy in the United States. The most widely used motors in these applications are constant-speed motors that are started and run across the line. In some applications, variable- speed motors, powered from an open-loop variable-speed drive, are utilized without any rotor position feedback device to achieve more

  18. Max Ambiental S A | Open Energy Information

    Open Energy Info (EERE)

    Ambiental S A Jump to: navigation, search Name: Max Ambiental S.A. Place: Sao Paulo, Brazil Zip: 01452-938 Sector: Carbon Product: Max Ambiental is a company involved in the...

  19. MaxWest Environmental Systems | Open Energy Information

    Open Energy Info (EERE)

    MaxWest Environmental Systems Jump to: navigation, search Name: MaxWest Environmental Systems Place: Houston, Texas Zip: 77057 Product: MaxWest Environmental Systems designs,...

  20. Advanced Motors

    SciTech Connect (OSTI)

    Knoth, Edward A.; Chelluri, Bhanumathi; Schumaker, Edward J.

    2012-12-14

    Project Summary Transportation energy usage is predicted to increase substantially by 2020. Hybrid vehicles and fuel cell powered vehicles are destined to become more prominent as fuel prices rise with the demand. Hybrid and fuel cell vehicle platforms are both dependent on high performance electric motors. Electric motors for transportation duty will require sizeable low-speed torque to accelerate the vehicle. As motor speed increases, the torque requirement decreases which results in a nearly constant power motor output. Interior permanent magnet synchronous motors (IPMSM) are well suited for this duty. , , These rotor geometries are configured in straight lines and semi circular arc shapes. These designs are of limited configurations because of the lack of availability of permanent magnets of any other shapes at present. We propose to fabricate rotors via a novel processing approach where we start with magnet powders and compact them into a net shape rotor in a single step. Using this approach, widely different rotor designs can be implemented for efficiency. The current limitation on magnet shape and thickness will be eliminated. This is accomplished by co-filling magnet and soft iron powders at specified locations in intricate shapes using specially designed dies and automatic powder filling station. The process fundamentals for accomplishing occurred under a previous Applied Technology Program titled, ���������������¢��������������������������������Motors and Generators for the 21st Century���������������¢�������������������������������. New efficient motor designs that are not currently possible (or cost prohibitive) can be accomplished by this approach. Such an approach to motor fabrication opens up a new dimension in motor design. Feasibility Results We were able to optimize a IPMSM rotor to take advantage of the powder co-filling and DMC compaction processing methods. The minimum low speed torque requirement of 5 N-m can be met through an optimized design with magnet material having a Br capability of 0.2 T. This level of magnetic performance can be met with a variety of bonded magnet compositions. The torque ripple was found to drop significantly by using thinner magnet segments. The powder co-filling and subsequent compaction processing allow for thinner magnet structures to be formed. Torque ripple can be further reduced by using skewing and pole shaping techniques. The techniques can be incorporated into the rotor during the powder co-filling process.

  1. Full Hybrid: Low Speed

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    highlighted Cruising button Passing button Braking button Stopped button LOW SPEED For initial acceleration and slow-speed driving, as well as reverse, the electric motor uses electricity from the battery to power the vehicle. If the battery needs to be recharged, the generator starts the engine and converts energy from the engine into electricity, which is stored in the battery. stage graphic: vertical blue rule Main stage: See through car with battery, engine, generator, power split device,

  2. When Should Inverter-Duty Motors Be Specified? - Motor Tip Sheet #14

    SciTech Connect (OSTI)

    2008-07-01

    Electronic adjustable speed drives (ASDs) used to be marketed as “usable with any standard motor.” However, premature failures of motor insulation systems began to occur with the introduction of fast-switching pulse-width modulated (PWM) drives.

  3. Two-speed transaxle

    DOE Patents [OSTI]

    Kalns, Ilmars (Northville, MI)

    1981-01-01

    Disclosed is a drive assembly (10) for an electrically powered vehicle (12). The assembly includes a transaxle (16) having a two-speed transmission (40) and a drive axle differential (46) disposed in a unitary housing assembly (38), an oil-cooled prime mover or electric motor (14) for driving the transmission input shaft (42), an adapter assembly (24) for supporting the prime mover on the transaxle housing assembly, and a hydraulic system (172) providing pressurized oil flow for cooling and lubricating the electric motor and transaxle and for operating a clutch (84) and a brake (86) in the transmission to shift between the two-speed ratios of the transmission. The adapter assembly allows the prime mover to be supported in several positions on the transaxle housing. The brake is spring-applied and locks the transmission in its low-speed ratio should the hydraulic system fail. The hydraulic system pump is driven by an electric motor (212) independent of the prime mover and transaxle.

  4. SolarMax Inc | Open Energy Information

    Open Energy Info (EERE)

    Korea (Republic) Zip: 445-912 Sector: Solar Product: Manufacturer and engineer of solar heating systems and boilers. References: SolarMax Inc1 This article is a stub. You...

  5. Max Tech and Beyond Design Competition

    Broader source: Energy.gov [DOE]

    The Max Tech and Beyond Design Competition is an annual competition run by the Department of Energy (DOE) and the Lawrence Berkeley National Laboratory (LBNL) that challenges students to design...

  6. max kwh | OpenEI Community

    Open Energy Info (EERE)

    This is likely due to users not understanding the meaning of "Max kWh"--often I see things like: "300, 700, 1000" (derived from "first 300, next 700, greater than 1000") which...

  7. runtime error message: "apsched: request exceeds max nodes, alloc...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    apsched: request exceeds max nodes, alloc" runtime error message: "apsched: request exceeds max nodes, alloc" September 12, 2014 Symptom: User jobs with single or multiple apruns...

  8. Method and apparatus for monitoring motor operated valve motor output torque and power at valve seating

    DOE Patents [OSTI]

    Casada, Donald A. (Oak Ridge, TN)

    1996-01-01

    A method and apparatus are provided for monitoring a motor operated valve during the brief period when the valve seats and the torque switch trips to deenergize the valve motor. The method uses voltage measurements on the load side of a deenergizing switch that opens to deenergize the motor to determine, among other things, final motor rotational speed and the decelerating torque at motor deenergization.

  9. Method and apparatus for monitoring motor operated valve motor output torque and power at valve seating

    DOE Patents [OSTI]

    Casada, D.A.

    1996-01-16

    A method and apparatus are provided for monitoring a motor operated valve during the brief period when the valve seats and the torque switch trips to deenergize the valve motor. The method uses voltage measurements on the load side of a deenergizing switch that opens to deenergize the motor to determine, among other things, final motor rotational speed and the decelerating torque at motor deenergization. 14 figs.

  10. Ultra-Efficient and Power-Dense Electric Motors

    SciTech Connect (OSTI)

    2009-01-01

    This factsheet describes a research project whose goal is to develop line-start and line-run constant-speed electric motors and simple-to-control electric motors with the goal of obtaining at least a 30% reduction in motor losses as compared to conventional energy-efficient induction motors and a 15% reduction in motor losses as compared to NEMA Premium® efficient induction motors.

  11. Determining Electric Motor Load and Efficiency

    Broader source: Energy.gov [DOE]

    To compare the operating costs of an existing standard motor with an appropriately-sized energy-efficient replacement, you need to determine operating hours, efficiency improvement values, and load. Part-load is a term used to describe the actual load served by the motor as compared to the rated full-load capability of the motor. Motor part-loads may be estimated through using input power, amperage, or speed measurements. This fact sheet briefly discusses several load estimation techniques.

  12. Secrets of the Motor That Drives Archaea Revealed

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Secrets of the Motor That Drives Archaea Revealed Secrets of the Motor That Drives Archaea Revealed Print Thursday, 14 February 2013 00:00 An international team led by John Tainer of the Life Sciences Division and Sonja-Verena Albers of the Max Planck Institute for Terrestrial Microbiology has solved the protein structure of the archaellum, the motor that propels motile species of Archaea (microorganisms), life's third domain. The Albers lab zeroed in on the crucial protein with genetics, and

  13. Adjustable Speed Drive Part-Load Efficiency | Department of Energy

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

    Drive Part-Load Efficiency Adjustable Speed Drive Part-Load Efficiency An adjustable speed drive (ASD) is a device that controls the rotational speed of motor-driven equipment. Variable frequency drives (VFDs), the most common type of ASDs, efficiently meet varying process requirements by adjusting the frequency and voltage of the power supplied to an AC motor to enable it to operate over a wide speed range. External sensors monitor flow, liquid levels, or pressure and then transmit a signal to

  14. Method and apparatus for controlling multiple motors

    DOE Patents [OSTI]

    Jones, Rollin G. (Los Alamos, NM); Kortegaard, Bert L. (Los Alamos, NM); Jones, David F. (Los Alamos, NM)

    1987-01-01

    A method and apparatus are provided for simultaneously controlling a plurality of stepper motors. Addressing circuitry generates address data for each motor in a periodic address sequence. Memory circuits respond to the address data for each motor by accessing a corresponding memory location containing a first operational data set functionally related to a direction for moving the motor, speed data, and rate of speed change. First logic circuits respond to the first data set to generate a motor step command. Second logic circuits respond to the command from the first logic circuits to generate a third data set for replacing the first data set in memory with a current operational motor status, which becomes the first data set when the motor is next addressed.

  15. Method for assessing in-service motor efficiency and in-service motor/load efficiency

    DOE Patents [OSTI]

    Kueck, John D.; Otaduy, Pedro J.

    1997-01-01

    A method and apparatus for assessing the efficiency of an in-service motor. The operating characteristics of the in-service motor are remotely measured. The operating characteristics are then applied to an equivalent circuit for electrical motors. Finally the equivalent circuit is evaluated to determine the performance characteristics of said in-service motor. Based upon the evaluation an individual is able to determine the rotor speed, power output, efficiency, and toque of the in-service motor. Additionally, an individual is able to confirm the calculations by comparing measured values with values obtained as a result of the motor equivalent circuit evaluation.

  16. Rainer Held > Guest Researcher - Max-Planck Institute for Solid...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Rainer Held Guest Researcher - Max-Planck Institute for Solid State Research heldrain@gmail.com Formerly a member of the Schlom Group, he joined the Max-Planck Institute for Solid...

  17. Incorporating the min-max mesh optimization method within the...

    Office of Scientific and Technical Information (OSTI)

    Incorporating the min-max mesh optimization method within the Target-Matrix Paradigm. Citation Details In-Document Search Title: Incorporating the min-max mesh optimization method...

  18. Synchronous motor with soft start element formed between the motor rotor and motor output shaft to successfully synchronize loads that have high inertia and/or high torque

    DOE Patents [OSTI]

    Umans, Stephen D; Nisley, Donald L; Melfi, Michael J

    2014-10-28

    A line-start synchronous motor has a housing, a rotor shaft, and an output shaft. A soft-start coupling portion is operatively coupled to the output shaft and the rotor shaft. The soft-start coupling portion is configurable to enable the synchronous motor to obtain synchronous operation and to drive, at least near synchronous speed during normal steady state operation of the motor, a load having characteristics sufficient to prevent obtaining normal synchronous operation of the motor when the motor is operatively connected to the load in the absence of the soft-start coupling. The synchronous motor is sufficiently rated to obtain synchronous operation and to drive, at least near synchronous speed during normal steady state operation of the motor, a load having characteristics sufficient to prevent obtaining normal synchronous operation of the motor when the motor is operatively connected to the load in the absence of the soft-start coupling.

  19. A Five-Leg Inverter for Driving a Traction Motor and a Compressor Motor

    SciTech Connect (OSTI)

    Su, Gui-Jia; Hsu, John S

    2006-01-01

    This paper presents an integrated inverter for speed control of a traction motor and a compressor motor to reduce the compressor drive cost in EV/HEV applications. The inverter comprises five phase-legs; three of which are for control of a three-phase traction motor and the remaining two for a two-phase compressor motor with three terminals. The common terminal of the two-phase motor is tied to the neutral point of the three-phase traction motor to eliminate the requirement of a third phase leg. Further cost savings are made possible by sharing the switching devices, dc bus filter capacitors, gate drive power supplies, and control circuit. Simulation and experimental results are included to verify that speed control of the two motors is independent from each other.

  20. Oscillation control system for electric motor drive

    DOE Patents [OSTI]

    Slicker, James M. (Union Lake, MI); Sereshteh, Ahmad (Union Lake, MI)

    1988-01-01

    A feedback system for controlling mechanical oscillations in the torsionally complaint drive train of an electric or other vehicle. Motor speed is converted in a processor to estimate state signals in which a plant model which are used to electronically modify thetorque commands applied to the motor.

  1. Oscillation control system for electric motor drive

    DOE Patents [OSTI]

    Slicker, J.M.; Sereshteh, A.

    1988-08-30

    A feedback system for controlling mechanical oscillations in the torsionally complaint drive train of an electric or other vehicle. Motor speed is converted in a processor to estimate state signals in which a plant model which are used to electronically modify the torque commands applied to the motor. 5 figs.

  2. Neurton Damage and MAX Phase Ternary Compounds

    SciTech Connect (OSTI)

    Barsoum, Michael; Hoffman, Elizabeth; Sindelar, Robert; Garcua-Duaz, Brenda; Kohse, Gordon

    2014-06-17

    The Demands of Gen IV nuclear power plants for long service life under neutron radiation at high temperature are severe. Advanced materials that would withstand high temperatures (up to 1000+ C) to high doses in a neutron field would be ideal for reactor internal structures and would add to the long service life and reliability of the reactors. The objective of this work is to investigate the resonse of a new class of machinable, conductive, layered, ternary transition metal carbides and nitrides - the so-called MAX phases - to low and moderate neutron dose levels.

  3. Instrument for analysis of electric motors based on slip-poles component

    DOE Patents [OSTI]

    Haynes, Howard D.; Ayers, Curtis W.; Casada, Donald A.

    1996-01-01

    A new instrument for monitoring the condition and speed of an operating electric motor from a remote location. The slip-poles component is derived from a motor current signal. The magnitude of the slip-poles component provides the basis for a motor condition monitor, while the frequency of the slip-poles component provides the basis for a motor speed monitor. The result is a simple-to-understand motor health monitor in an easy-to-use package. Straightforward indications of motor speed, motor running current, motor condition (e.g., rotor bar condition) and synthesized motor sound (audible indication of motor condition) are provided. With the device, a relatively untrained worker can diagnose electric motors in the field without requiring the presence of a trained engineer or technician.

  4. Instrument for analysis of electric motors based on slip-poles component

    DOE Patents [OSTI]

    Haynes, H.D.; Ayers, C.W.; Casada, D.A.

    1996-11-26

    A new instrument is described for monitoring the condition and speed of an operating electric motor from a remote location. The slip-poles component is derived from a motor current signal. The magnitude of the slip-poles component provides the basis for a motor condition monitor, while the frequency of the slip-poles component provides the basis for a motor speed monitor. The result is a simple-to-understand motor health monitor in an easy-to-use package. Straightforward indications of motor speed, motor running current, motor condition (e.g., rotor bar condition) and synthesized motor sound (audible indication of motor condition) are provided. With the device, a relatively untrained worker can diagnose electric motors in the field without requiring the presence of a trained engineer or technician. 4 figs.

  5. AVTA: 2013 Ford C-MAX HEV Testing Results

    Broader source: Energy.gov [DOE]

    VTO's National Laboratories have tested and collected both dynamometer and fleet data for the Ford C-MAX HEV (a hybrid electric vehicle).

  6. SolarMax Technology Inc | Open Energy Information

    Open Energy Info (EERE)

    Technology Inc Jump to: navigation, search Name: SolarMax Technology Inc Place: City of Industry, California Zip: 91745 Product: PV module maker and residential and commercial PV...

  7. Paul Blom: Research Director, Max Planck Institute for Polymer...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    PM Paul Blom Research Director, Max Planck Institute for Polymer Research Transport and Recombination in Polymer:fullerene bulk Heterojunction Solar Cells January 22, 2014 |...

  8. When Should Inverter-Duty Motors Be Specified?

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

    Should Inverter-Duty Motors Be Specified? Electronic adjustable speed drives, known as variable frequency drives (VFD), used to be marketed as "usable with any standard motor." However, premature failures of motor insulation systems began to occur as fast-switching, pulse-width-modulated (PWM) VFDs were introduced. The switching rates of modern power semiconductors can lead to voltage overshoots. These voltage spikes can rapidly damage a motor's insulation system, resulting in

  9. Homopolar motor with dual rotors

    DOE Patents [OSTI]

    Hsu, J.S.

    1998-12-01

    A homopolar motor has a field rotor mounted on a frame for rotation in a first rotational direction and for producing an electromagnetic field, and an armature rotor mounted for rotation on said frame within said electromagnetic field and in a second rotational direction counter to said first rotational direction of said field rotor. The two rotors are coupled through a 1:1 gearing mechanism, so as to travel at the same speed but in opposite directions. This doubles the output voltage and output power, as compared to a motor in which only the armature is rotated. Several embodiments are disclosed. 7 figs.

  10. Modeling Reluctance-Assisted PM Motors

    SciTech Connect (OSTI)

    Otaduy, P.J.

    2006-01-13

    This report contains a derivation of the fundamental equations used to calculate the base speed, torque delivery, and power output of a reluctance-assisted PM motor which has a saliency ratio greater than 1 as a function of its terminal voltage, current, voltage-phase angle, and current-phase angle. The equations are applied to model Motor X using symbolically-oriented methods with the computer tool Mathematica to determine: (1) the values of current-phase angle and voltage-phase angle that are uniquely determined once a base speed has been selected; (2) the attainable current in the voltage-limited region above base speed as a function of terminal voltage, speed, and current-phase angle; (3) the attainable current in the voltage-limited region above base speed as a function of terminal voltage, speed, and voltage-phase angle; (4) the maximum-power output in the voltage-limited region above base speed as a function of speed; (5) the optimal voltage-phase angle in the voltage-limited region above base speed required to obtain maximum-power output; (6) the maximum-power speed curve which was linear from rest to base speed in the current limited region below base speed; (7) the current angle as a function of saliency ratio in the current-limited region below base speed; and (8) the torque as a function of saliency ratio which is almost linear in the current-limited region below base speed. The equations were applied to model Motor X using numerically-oriented methods with the computer tool LabVIEW. The equations were solved iteratively to find optimal current and voltage angles that yield maximum power and maximum efficiency from rest through the current-limited region to base speed and then through the voltage-limited region to high-rotational speeds. Currents, voltages, and reluctance factors were all calculated and external loops were employed to perform additional optimization with respect to PM pitch angle (magnet fraction) and with respect to magnet strength. The conclusion was that the optimal-magnet fraction for Motor X is 0.72 which corresponds to a PM pitch angle of 130{sup o}, a value close to the maximum-saliency ratio in a plot of saliency ratio versus PM pitch angle. Further, the strength of Motor X magnets may be lowered to 80% of full strength without significantly impacting motor performance for PM pitch angles between the peak saliency (130{sup o}) and peak-characteristic current (160{sup o}). It is recommended that future research involve maximizing a driving-cycle-weighted efficiency based on the Federal Urban Driving Cycle and the Federal Highway Driving Cycle as criteria for selecting the final optimal-PM fraction and magnet strength for this inset PM motor. Results of this study indicate that the reduction in PM torque due to reduced-magnet fraction will be more than compensated by the reluctance torque resulting from the higher saliency ratio. It seems likely that the best overall performance will require saliency; consequently, we think the best motor will be a reluctance-assisted PM motor. This should be explored for use with other types of PM motors, such as fractional-slot motors with concentrated windings.

  11. Method and apparatus for large motor control

    DOE Patents [OSTI]

    Rose, Chris R. (Santa Fe, NM); Nelson, Ronald O. (White Rock, NM)

    2003-08-12

    Apparatus and method for providing digital signal processing method for controlling the speed and phase of a motor involves inputting a reference signal having a frequency and relative phase indicative of a time based signal; modifying the reference signal to introduce a slew-rate limited portion of each cycle of the reference signal; inputting a feedback signal having a frequency and relative phase indicative of the operation of said motor; modifying the feedback signal to introduce a slew-rate limited portion of each cycle of the feedback signal; analyzing the modified reference signal and the modified feedback signal to determine the frequency of the modified reference signal and of the modified feedback signal and said relative phase between said modified reference signal and said modified feedback signal; and outputting control signals to the motor for adjusting said speed and phase of the motor based on the frequency determination and determination of the relative phase.

  12. Premium Efficiency Motor Selection and Application Guide – A Handbook for Industry

    SciTech Connect (OSTI)

    Gilbert A. McCoy and John G. Douglass

    2014-02-01

    This handbook informs new motor purchase decisions by identifying energy and cost savings that can come from replacing motors with premium efficiency units. The handbook provides an overview of current motor use in the industrial sector, including the development of motor efficiency standards, currently available and emerging advanced efficiency motor technologies, and guidance on how to evaluate motor efficiency opportunities. It also several tips on getting the most out of industrial motors, such as how to avoid adverse motor interactions with electronic adjustable speed drives and how to ensure efficiency gains are not lost to undervoltage operation or excessive voltage unbalance.

  13. Direct-drive field actuator motors

    DOE Patents [OSTI]

    Grahn, Allen R. (Salt Lake City, UT)

    1995-01-01

    A high-torque, low speed, positive-drive field actuator motor including a stator carrying at least one field actuator which changes in dimension responsive to application of an energy field, and at least one drive shoe movable by the dimensional changes of the field actuator to contact and move a rotor element with respect to the stator. Various embodiments of the motor are disclosed, and the rotor element may be moved linearly or arcuately.

  14. Direct-drive field actuator motors

    DOE Patents [OSTI]

    Grahn, A.R.

    1995-07-11

    A high-torque, low speed, positive-drive field actuator motor is disclosed including a stator carrying at least one field actuator which changes in dimension responsive to application of an energy field, and at least one drive shoe movable by the dimensional changes of the field actuator to contact and move a rotor element with respect to the stator. Various embodiments of the motor are disclosed, and the rotor element may be moved linearly or arcuately. 37 figs.

  15. University of Maryland Wins Max Tech and Beyond Competition for

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

    Ultra-Efficient Clothes Dryer | Department of Energy University of Maryland Wins Max Tech and Beyond Competition for Ultra-Efficient Clothes Dryer University of Maryland Wins Max Tech and Beyond Competition for Ultra-Efficient Clothes Dryer September 10, 2013 - 12:00pm Addthis The Energy Department announced today that the University of Maryland won the second annual Max Tech and Beyond design competition for ultra-low energy use appliances and equipment for the second year in a row. The

  16. Subkilovolt response of Kodak T max XUV film

    SciTech Connect (OSTI)

    Dittmore, C.; Stoering, J.P. ); Gullikson, E. )

    1990-02-08

    A calibration of Kodak T max 100 XUV film at six x-ray energies ranging from 0.27 keV to 1.49 keV has been concluded. The primary purpose was to compare the sensitivity of this film to that of Kodak type 101-07 XUV film in order to appraise the feasibility of replacing the type 101-07 film with the type T max 100 film. In addition to being considerably less expensive, the T max 100 film is less disposed to abrasion from handling. A secondary objective was to provide a base for further response measurements should the T max 100 film prove to be an acceptable substitute for the type 101-07 film. 10 figs., 2 tabs.

  17. Zhejiang Max Solar Energy Co Ltd | Open Energy Information

    Open Energy Info (EERE)

    Solar Energy Co Ltd Jump to: navigation, search Name: Zhejiang Max Solar Energy Co Ltd Place: Huzhou, Zhejiang Province, China Zip: 313009 Product: A Zhejiang-based PV module...

  18. Princeton, Max Planck Society launch new research center for...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Planck Society President Peter Gruss, and Consul General of the Federal Republic of Germany in New York Busso von Alvensleben meet to sign an agreement launching the new Max...

  19. System and method to determine electric motor efficiency using an equivalent circuit

    DOE Patents [OSTI]

    Lu, Bin; Habetler, Thomas G.

    2015-10-27

    A system and method for determining electric motor efficiency includes a monitoring system having a processor programmed to determine efficiency of an electric motor under load while the electric motor is online. The determination of motor efficiency is independent of a rotor speed measurement. Further, the efficiency is based on a determination of stator winding resistance, an input voltage, and an input current. The determination of the stator winding resistance occurs while the electric motor under load is online.

  20. System and method to determine electric motor efficiency using an equivalent circuit

    DOE Patents [OSTI]

    Lu, Bin; Habetler, Thomas G

    2015-11-06

    A system and method for determining electric motor efficiency includes a monitoring system having a processor programmed to determine efficiency of an electric motor under load while the electric motor is online. The determination of motor efficiency is independent of a rotor speed measurement. Further, the efficiency is based on a determination of stator winding resistance, an input voltage, and an input current. The determination of the stator winding resistance occurs while the electric motor under load is online.

  1. System and method to determine electric motor efficiency using an equivalent circuit

    DOE Patents [OSTI]

    Lu, Bin; Habetler, Thomas G.

    2011-06-07

    A system and method for determining electric motor efficiency includes a monitoring system having a processor programmed to determine efficiency of an electric motor under load while the electric motor is online. The determination of motor efficiency is independent of a rotor speed measurement. Further, the efficiency is based on a determination of stator winding resistance, an input voltage, and an input current. The determination of the stator winding resistance occurs while the electric motor under load is online.

  2. The Max Tech and Beyond Competition | Department of Energy

    Energy Savers [EERE]

    The Max Tech and Beyond Competition The Max Tech and Beyond Competition Addthis 1 of 5 Team Cal Poly Solar is working to significantly reduce the cost and construction time on their solar concentrator for cooking. Image: Lawrence Berkeley National Laboratory 2 of 5 Professor Dale Dolan's students from California Polytechnic State University San Luis Obispo Electrical Engineering department testing the placement of their Hybrid Solar Photovoltaic Panel for Pool Heating. Image: Lawrence Berkeley

  3. CRADA Final Report: Application of Dual-Mode Inverter Control to Commercially Available Radial-Gap Mermanent Magnet Motors - Vol. I

    SciTech Connect (OSTI)

    McKeever, John W; Lawler, Jack; Downing, Mark; Stahlhut, Ronnie D; Bremmer, R.; Shoemaker, J. M.; Seksarian, A. K.; Poore, B.; Lutz, Jon F

    2006-05-01

    John Deere and Company (Deere), their partner, UQM Technologies, Inc. (UQM), and the Oak Ridge National Laboratory's (ORNL's) Power Electronics and Electric Machinery Research Center (PEEMRC) recently completed work on the cooperative research and development agreement (CRADA) Number ORNL 04-0691 outlined in this report. CRADA 04-0691 addresses two topical issues of interest to Deere: (1) Improved characterization of hydrogen storage and heat-transfer management; and (2) Potential benefits from advanced electric motor traction-drive technologies. This report presents the findings of the collaborative examination of potential operational and cost benefits from using ORNL/PEEMRC dual-mode inverter control (DMIC) to drive permanent magnet (PM) motors in applications of interest to Deere. DMIC was initially developed and patented by ORNL to enable PM motors to be driven to speeds far above base speed where the back-electromotive force (emf) equals the source voltage where it is increasingly difficult to inject current into the motor. DMIC is a modification of conventional phase advance (CPA). DMIC's dual-speed modes are below base speed, where traditional pulse-width modulation (PWM) achieves maximum torque per ampere (amp), and above base speed, where six-step operation achieves maximum power per amp. The modification that enables DMIC adds two anti-parallel thyristors in each of the three motor phases, which consequently adds the cost of six thyristors. Two features evaluated in this collaboration with potential to justify the additional thyristor cost were a possible reduction in motor cost and savings during operation because of higher efficiency, both permitted because of lower current. The collaborative analysis showed that the reduction of motor cost and base cost of the inverter was small, while the cost of adding six thyristors was greater than anticipated. Modeling the DMIC control displayed inverter efficiency gains due to reduced current, especially under light load and higher speed. This current reduction, which is the salient feature of DMIC, may be significant when operating duty cycles have low loads at high frequencies. Reduced copper losses make operation more efficient thereby reducing operating costs. In the Deere applications selected for this study, the operating benefit was overshadowed by the motor's rotational losses. Rotational losses of Deere 1 and Deere 2 dominate the overall drive efficiency so that their reduction has the greatest potential to improve performance. A good follow-up project would be to explore cost erective ways to reduce the rotational losses buy 66%. During this analysis it has been shown that, for a PM synchronous motor (PMSM), the DMIC's salient feature is its ability to minimize the current required to deliver a given power. The root-mean-square (rms) current of a motor is determined by the speed, power, motor drive parameters, and controls as I{sub rms} = (n, P, motor drive parameters, controls), where n is the relative speed, {omega}/{omega}{sub base} = {Omega}/{Omega}{sub base}, {omega} is the mechanical frequency, {Omega} is the electrical frequency, and P is the power. The characteristic current is the rms current at infinite speed, when all resistance and rotational losses are neglected. Expressions have been derived for the characteristic currents of PMSMs when the motor is controlled by CPA and by DMIC. The expression for CPA characteristic current is I{sub n{yields}{infinity}}{sup CPA} = nE{sub base}/X = nE{sub base}/n{Omega}{sub b}L = E{sub base}/{Omega}{sub b}L, which is strictly a function of the machine parameters, back-emf at base speed, base speed electrical frequency, and inductance. At high speeds, the rms current tends to remain constant even when the load-power requirements are reduced. The expression for DMIC characteristic current is I{sub n{yields}{infinity}}{sup DMIC} = P/3V{sub max} = P{pi}/3{radical}2V{sub dc}, which has nothing to do with machine parameters. This interesting result shows that at high speeds under DMIC control, the rms current diminis

  4. Motor Repair Tech Brief

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

    Motor Repair Tech Brief u Why do motors fail? u When should you repair instead of replace? u How can reliability and efficiency be assured in a repair? This Tech Brief applies to: Random Wound Induction Motors Designs A-E Acknowledgements The following series of Repair Documents-The Service Center Evaluation Guide, Selected Bibliography on Electric Motor Repair, Model Repair Specifications for Low Voltage Motors, and Motor Repair Tech Brief- were produced by the U.S. Department of Energy's

  5. System and method to allow a synchronous motor to successfully synchronize with loads that have high inertia and/or high torque

    DOE Patents [OSTI]

    Melfi, Michael J.

    2015-10-20

    A mechanical soft-start type coupling is used as an interface between a line start, synchronous motor and a heavy load to enable the synchronous motor to bring the heavy load up to or near synchronous speed. The soft-start coupling effectively isolates the synchronous motor from the load for enough time to enable the synchronous motor to come up to full speed. The soft-start coupling then brings the load up to or near synchronous speed.

  6. Development of Ulta-Efficient Electric Motors

    SciTech Connect (OSTI)

    Shoykhet, B.; Schiferl, R.; Duckworth, R.; Rey, C.M.; Schwenterly, S.W.; Gouge, M.J.

    2008-05-01

    Electric motors utilize a large amount of electrical energy in utility and industrial applications. Electric motors constructed with high temperature superconducting (HTS) materials have the potential to dramatically reduce electric motor size and losses. HTS motors are best suited for large motor applications at ratings above 1000 horsepower (hp), where the energy savings from the efficiency improvement can overcome the additional power required to keep the superconductors on the rotor cooled. Large HTS based motors are expected to be half the volume and have half the losses of conventional induction motors of the same rating. For a 5000 hp industrial motor, this energy savings can result in $50,000 in operating cost savings over the course of a single year of operation. Since large horsepower motors utilize (or convert) about 30% of the electrical power generated in the United States and about 70% of large motors are candidates for replacement by HTS motors, the annual energy savings potential through the utilization of HTS motors can be up to $1 Billion in the United States alone. Research in the application of HTS materials to electric motors has lead to a number of HTS motor prototypes yet no industrial HTS motor product has yet been introduced. These motor demonstrations have been synchronous motors with HTS field windings, on the rotor. Figure 1-1 shows a solid model rendering of this type of motor. The rotor winding is made with HTS coils that are held at cryogenic temperature by introducing cooling fluid from the cryocooler to the rotor through a transfer coupling. The stator winding is made of copper wire. The HTS winding is thermally isolated from the warm armature and motor shafts by a vacuum insulation space and through the use of composite torque tubes. The stator in Figure 1-1 is an air core stator in that the stator teeth and a small part of the yoke is made up of nonmagnetic material so the magnetic fields distribute themselves as if in air. Between the HTS field winding and the physical air gap is a series of concentric cylinders that act as vacuum insulation space walls as well as conducting paths for induced currents to flow in order to shield the HTS winding and the rotor cold space from time dependent fields. These time dependent fields may be caused by rotor hunting, during a change in motor load, or by non-fundamental component voltages and currents applied by the inverter. These motors are variable speed controlled by the inverter. Common large motor utility and industrial applications are pump and fan drives that are best suited by a variable speed motor. Inverter control of the HTS motor eliminates the need to design the rotor for line starting, which would dump a large amount of heat into the rotor that would then heavily tax the cryogenic cooling system. The field winding is fed by a brushless exciter that provides DC current to the HTS rotor winding. The stator winding is air or water cooled. Technical and commercial hurdles to industrial HTS motor product introduction and customer acceptance include (1) the high cost of HTS wire and the cryogenic cooling system components, (2) customer concerns about reliability of HTS motors, and (3) the ability to attain the loss reduction potential of large HTS motors. Reliance Electric has demonstrated a number of HTS based electric motors up to a 1000 hp, variable speed synchronous motor with an HTS field winding in the year 2000. In 2001 this motor was tested to 1600 hp with a sinusoidal (constant frequency) supply. Figure 1-2 shows the HTS motor on the dynamometer test stand in the Reliance Electric test lab. The extensive test program of the 1000 hp motor successfully demonstrated the technical feasibility of large HTS motors and the basic technologies involved, however the test results did indicate the need for design refinements. In addition, test results served to identify other more fundamental critical technology issues, and revealed the need to continue research efforts in order to improve future HTS motor first cost, reliability, and performa

  7. The interactional foundations of MaxEnt: Open questions

    SciTech Connect (OSTI)

    Harré, Michael S.

    2014-12-05

    One of the simplest and potentially most useful techniques to be developed in the 20{sup th} century, a century noted for an ever more mathematically sophisticated formulation of the sciences, is that of maximising the entropy of a system in order to generate a descriptive, stochastic model of that system in closed form, often abbreviated to MaxEnt. The extension of MaxEnt to systems beyond the physics from which it originated is hampered by the fact that the microscopic physical interactions that are not justified or justifiable within the MaxEnt framework need to be falsifiably evaluated in each new field of application. It is not obvious that such justification exists for many systems in which the interactions are not directly based on physics. For example what is the justification for the use of MaxEnt in biology, climate modelling or economics? Is it simply a useful heuristic or is there some deeper connection with the foundations of some systems? Without further critical examination of the microscopic foundations that give rise to the success of the MaxEnt principle it is difficult to motivate the use of such techniques in other fields except through theoretically an practically unsatisfying analogical arguments. This article briefly presents the basis of MaxEnt principles as originally introduced in statistical mechanics in the Jaynes form, the Tsallis form and the Rényi form. Several different applications are introduced including that of ecological diversity where maximising the different diversity measures is equivalent to maximising different entropic functionals.

  8. Method and apparatus for monitoring the rotating frequency of de-energized induction motors

    DOE Patents [OSTI]

    Mikesell, H.E.; Lucy, E.

    1998-02-03

    The rotational speed of a coasting induction motor is measured by sensing e residual electrical voltages at the power terminals of the motor, thus eliminating the need for conventional tachometer equipment, additional mechanical components or modifications to the induction motor itself. The power terminal voltage signal is detected and transformed into a DC voltage proportional to the frequency of the signal. This DC voltage can be input to the control system of a variable frequency motor controller to regulate the output characteristics thereof relative to the speed of the coasting motor. 6 figs.

  9. Method and apparatus for monitoring the rotating frequency of de-energized induction motors

    DOE Patents [OSTI]

    Mikesell, Harvey E.; Lucy, Eric

    1998-01-01

    The rotational speed of a coasting induction motor is measured by sensing e residual electrical voltages at the power terminals of the motor, thus eliminating the need for conventional tachometer equipment, additional mechanical components or modifications to the induction motor itself. The power terminal voltage signal is detected and transformed into a DC voltage proportional to the frequency of the signal. This DC voltage can be input to the control system of a variable frequency motor controller to regulate the output characteristics thereof relative to the speed of the coasting motor.

  10. 3D-Printed Car by Local Motors - The Strati | Department of Energy

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

    3D-Printed Car by Local Motors - The Strati 3D-Printed Car by Local Motors - The Strati Local Motors 3D-Printed Car Timelapse Text Version The video starts with an image of the completed Strati and the Local Motors logo flashing on the screen. The process to create the 3D-printed car is shown high speed, with fast music. Again, the Local Motors logo flashes on the screen, along with the words "#3DPrintedCar." The video continues to show the 3D printing process high speed, interspersed

  11. When Should Inverter-Duty Motors Be Specified?

    Broader source: Energy.gov [DOE]

    Electronic adjustable speed drives, known as variable frequency drives (VFD), used to be marketed as “usable with any standard motor.” However, premature failures of motor insulation systems began to occur as fast-switching, pulse-width-modulated (PWM) VFDs were introduced. The switching rates of modern power semiconductors can lead to voltage overshoots. These voltage spikes can rapidly damage a motor’s insulation system, resulting in premature motor failure. This tip sheet discusses the effects of VFDs on induction motors and offers suggested actions.

  12. Adjustable Speed Pumping Applications

    Broader source: Energy.gov [DOE]

    This tip sheet provides practical tips on the application of adjustable speed drives in industrial pumping systems.

  13. Motor Systems | Department of Energy

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

    Technical Assistance » Motor Systems Motor Systems Dramatic energy and cost savings can be achieved in motor systems by applying best energy management practices and purchasing energy-efficiency equipment. Use the software tools, training, and publications listed below to save energy in motors. Motors Tools Tools to assess your energy system: MotorMaster+ MotorMaster+ International Motors Case Studies Improving Efficiency of Tube Drawing Bench Motor System Upgrades Smooth the Way to Savings of

  14. General Motors | Open Energy Information

    Open Energy Info (EERE)

    Motors Jump to: navigation, search Name: General Motors Place: Detroit, MI Website: www.generalmotors.com References: General Motors1 Information About Partnership with NREL...

  15. Aurica Motors | Open Energy Information

    Open Energy Info (EERE)

    Aurica Motors Jump to: navigation, search Name: Aurica Motors Place: California Product: California-based Aurica Motors is planning to develop and manufacture an electric vehicle...

  16. Myers Motors | Open Energy Information

    Open Energy Info (EERE)

    Myers Motors Jump to: navigation, search Name: Myers Motors Place: Tallmadge, Ohio Zip: 44278 Sector: Vehicles Product: Myers Motors produces three wheeled electric vehicles....

  17. Report on Toyota Prius Motor Thermal Management

    SciTech Connect (OSTI)

    Hsu, J.S.

    2005-02-11

    In the current hybrid vehicle market, the Toyota Prius drive system is considered the leader in electrical, mechanical, and manufacturing innovations. It is a significant accomplishment that Toyota is able to manufacture and sell the vehicle for a profit. The Toyota Prius traction motor design approach for reducing manufacturing costs and the motor s torque capability have been studied and tested. The findings were presented in two previous Oak Ridge National Laboratory (ORNL) reports. The conclusions from this report reveal, through temperature rise tests, that the 2004 Toyota Prius (THSII) motor is applicable only for use in a hybrid automobile. It would be significantly undersized if used in a fuel cell vehicle application. The power rating of the Prius motor is limited by the permissible temperature rise of the motor winding (170 C) and the motor cooling oil (158 C). The continuous ratings at base speed (1200 rpm) with different coolant temperatures are projected from test data at 900 rpm. They are approximately 15 kW with 105 C coolant and 21 kW with 35 C coolant. These continuous ratings are much lower than the 30 kW specified as a technical motor target of the U.S. Department of Energy FreedomCAR Program. All tests were conducted at about 24 C ambient temperature. The load angle of each torque adjustment was monitored to prevent a sudden stop of the motor if the peak torque were exceeded, as indicated by the load angle in the region greater than 90 electrical degrees. For peak power with 400 Nm torque at 1200 rpm, the permissible running time depends upon the initial winding temperature condition. The projected rate of winding temperature rise is approximately 2.1 C/sec. The cooling-oil temperature does not change much during short peak power operation. For light and medium load situations, the efficiency varies from 80% to above 90%, and the power factor varies from 70% to above 90%, depending on the load and speed. When the motor is loaded heavily near the peak-torque (400-Nm) region, the efficiency goes down to the 40-50% range, and the power factor is nearly 100%. The efficiency is not a major concern at the high-torque region. The water-ethylene-glycol heat exchanger attached to the motor is small. During continuous operation, it dissipates about 76% of the total motor heat loss with 35 C coolant. The heat exchanger is less effective when the coolant temperature increases. With 75 C coolant, the heat exchanger dissipates about 38% of the motor heat. When the coolant temperature is 105 C, the heat exchanger not only stops cooling the motor but also adds heat to the large motor housing that acts as an air-cooled heat sink. From start to the base speed, 400 Nms of torque can be produced by the Prius motor with a reasonably low stator current. However, the permissible running time of the motor depends on the load drawn from the motor and the coolant temperature. In the Toyota Prius hybrid configuration, if the motor gets too hot and cannot keep running, the load can be shifted back to the engine. The motor acts to improve the system efficiency without being overly designed. A detailed thermal model was developed to help predict the temperature levels in key motor components. The model was calibrated and compared with the experimentally measured temperatures. Very good agreement was obtained between model and experiment. This model can now be used to predict the temperature of key motor components at a variety of operating conditions and to evaluate the thermal characteristics of new motor designs. It should be pointed out that a fuel-cell motor does not have an engine to fall back on to provide the needed wheel power. Therefore, the design philosophy of a fuel-cell motor is very different from that of a hybrid Prius motor. Further thermal management studies in the high-speed region of the Prius motor, fed by its inverter, are planned.

  18. Energy Implications of Retrofitting Retail Sector Rooftop Units with Stepped-Speed and Variable-Speed Functionality

    SciTech Connect (OSTI)

    Studer, D.; Romero, R.; Herrmann, L.; Benne, K.

    2012-04-01

    Commercial retailers understand that retrofitting constant-speed RTU fan motors with stepped- or variable-speed alternatives could save significant energy in most U.S. climate zones. However, they lack supporting data, both real-world and simulation based, on the cost effectiveness and climate zone-specific energy savings associated with this measure. Thus, building managers and engineers have been unable to present a compelling business case for fan motor upgrades to upper management. This study uses whole-building energy simulation to estimate the energy impact of this type of measure so retailers can determine its economic feasibility.

  19. Dynein Motor Domain Shows Ring-Shaped Motor, Buttress

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Dynein Motor Domain Shows Ring-Shaped Motor, Buttress Dynein Motor Domain Shows Ring-Shaped Motor, Buttress Print Monday, 28 November 2011 14:52 Movement is fundamental to life. It...

  20. Adjustable-Speed Drives for 500 to 4000 Horsepower Industrial Applications

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

    | Department of Energy Adjustable-Speed Drives for 500 to 4000 Horsepower Industrial Applications Adjustable-Speed Drives for 500 to 4000 Horsepower Industrial Applications New Drive System Saves Energy and Extends Variable Speed Control to Larger Motors MagnaDrive Corporation, with assistance from the NICE3 program and Washington State University's Cooperative Extension Energy Program, has developed a highly efficient adjustable speed drive (ASD) for various industrial applications. The

  1. max walltime for "low" queue is increased to 24 hrs on Hopper

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    max walltime for low queue is increased to 24 hrs on Hopper max walltime for low queue is increased to 24 hrs on Hopper May 31, 2012 by Helen He (0 Comments) We have increased the...

  2. WPPI GreenMax-Scheller Residence: Near Zero Energy Monitoring Summary

    SciTech Connect (OSTI)

    2010-11-19

    This report describes results of GreenMax 2 monitoring project referred to as the GreenMax Net Zero Home, a demonstration home that can provide a wealth of information for the building community.

  3. Halbach array DC motor/generator

    DOE Patents [OSTI]

    Merritt, B.T.; Dreifuerst, G.R.; Post, R.F.

    1998-01-06

    A new configuration of DC motor/generator is based on a Halbach array of permanent magnets. This motor does not use ferrous materials so that the only losses are winding losses and losses due to bearings and windage. An ``inside-out`` design is used as compared to a conventional motor/generator design. The rotating portion, i.e., the rotor, is on the outside of the machine. The stationary portion, i.e., the stator, is formed by the inside of the machine. The rotor contains an array of permanent magnets that provide a uniform field. The windings of the motor are placed in or on the stator. The stator windings are then ``switched`` or ``commutated`` to provide a DC motor/generator much the same as in a conventional DC motor. The commutation can be performed by mechanical means using brushes or by electronic means using switching circuits. The invention is useful in electric vehicles and adjustable speed DC drives. 17 figs.

  4. Halbach array DC motor/generator

    DOE Patents [OSTI]

    Merritt, Bernard T. (Livermore, CA); Dreifuerst, Gary R. (Livermore, CA); Post, Richard F. (Walnut Creek, CA)

    1998-01-01

    A new configuration of DC motor/generator is based on a Halbach array of permanent magnets. This motor does not use ferrous materials so that the only losses are winding losses and losses due to bearings and windage. An "inside-out" design is used as compared to a conventional motor/generator design. The rotating portion, i.e., the rotor, is on the outside of the machine. The stationary portion, i.e., the stator, is formed by the inside of the machine. The rotor contains an array of permanent magnets that provide a uniform field. The windings of the motor are placed in or on the stator. The stator windings are then "switched" or "commutated" to provide a DC motor/generator much the same as in a conventional DC motor. The commutation can be performed by mechanical means using brushes or by electronic means using switching circuits. The invention is useful in electric vehicles and adjustable speed DC drives.

  5. Motor Current Data Collection System

    Energy Science and Technology Software Center (OSTI)

    1992-12-01

    The Motor Current Data Collection System (MCDCS) uses IBM compatible PCs to collect, process, and store Motor Current Signature information.

  6. MotorMaster+ Fact Sheet

    Broader source: Energy.gov [DOE]

    Fact sheet describing how industrial plants can improve their motor system performance using AMO's MotorMaster+ software tool.

  7. Motor/generator

    DOE Patents [OSTI]

    Hickam, Christopher Dale (Glasford, IL)

    2008-05-13

    A motor/generator is provided for connecting between a transmission input shaft and an output shaft of a prime mover. The motor/generator may include a motor/generator housing, a stator mounted to the motor/generator housing, a rotor mounted at least partially within the motor/generator housing and rotatable about a rotor rotation axis, and a transmission-shaft coupler drivingly coupled to the rotor. The transmission-shaft coupler may include a clamp, which may include a base attached to the rotor and a plurality of adjustable jaws.

  8. Motorized support jack

    DOE Patents [OSTI]

    Haney, Steven J. (Tracey, CA); Herron, Donald Joe (Manteca, CA)

    2001-01-01

    A compact, vacuum compatible motorized jack for supporting heavy loads and adjusting their positions is provided. The motorized jack includes: (a) a housing having a base; (b) a first roller device that provides a first slidable surface and that is secured to the base; (c) a second roller device that provides a second slidable surface and that has an upper surface; (d) a wedge that is slidably positioned between the first roller device and the second roller device so that the wedge is in contact with the first slidable surface and the second slidable surface; (e) a motor; and (d) a drive mechanism that connects the motor and the wedge to cause the motor to controllably move the wedge forwards or backwards. Individual motorized jacks can support and lift of an object at an angle. Two or more motorized jacks can provide tip, tilt and vertical position adjustment capabilities.

  9. Motorized support jack

    DOE Patents [OSTI]

    Haney, Steven J.; Herron, Donald Joe

    2003-05-13

    A compact, vacuum compatible motorized jack for supporting heavy loads and adjusting their positions is provided. The motorized jack includes: (a) a housing having a base; (b) a first roller device that provides a first slidable surface and that is secured to the base; (c) a second roller device that provides a second slidable surface and that has an upper surface; (d) a wedge that is slidably positioned between the first roller device and the second roller device so that the wedge is in contact with the first slidable surface and the second slidable surface; (e) a motor; and (d) a drive mechanism that connects the motor and the wedge to cause the motor to controllably move the wedge forwards or backwards. Individual motorized jacks can support and lift of an object at an angle. Two or more motorized jacks can provide tip, tilt and vertical position adjustment capabilities.

  10. System and method to determine electric motor efficiency nonintrusively

    DOE Patents [OSTI]

    Lu, Bin; Habetler, Thomas G.; Harley, Ronald G.

    2011-08-30

    A system and method for nonintrusively determining electric motor efficiency includes a processor programed to, while the motor is in operation, determine a plurality of stator input currents, electrical input data, a rotor speed, a value of stator resistance, and an efficiency of the motor based on the determined rotor speed, the value of stator resistance, the plurality of stator input currents, and the electrical input data. The determination of the rotor speed is based on one of the input power and the plurality of stator input currents. The determination of the value of the stator resistance is based on at least one of a horsepower rating and a combination of the plurality of stator input currents and the electrical input data. The electrical input data includes at least one of an input power and a plurality of stator input voltages.

  11. Precision electronic speed controller for an alternating-current

    DOE Patents [OSTI]

    Bolie, Victor W. (Albuquerque, NM)

    1988-01-01

    A high precision controller for an alternating-current multi-phase electrical motor that is subject to a large inertial load. The controller was developed for and is particularly suitable for controlling, in a neutron chopper system, a heavy spinning rotor that must be rotated in phase-locked synchronism with a reference pulse train that is representative of an ac power supply signal having a meandering line frequency. The controller includes a shaft revolution sensor which provides a feedback pulse train representative of the actual speed of the motor. An internal digital timing signal generator provides a reference signal which is compared with the feedback signal in a computing unit to provide a motor control signal. In the preferred embodiment, the motor control signal is a weighted linear sum of a speed error voltage, a phase error voltage, and a drift error voltage, each of which is computed anew with each revolution of the motor shaft. The stator windings of the motor are driven by two amplifiers which are provided with input signals having the proper quadrature relationship by an exciter unit consisting of a voltage controlled oscillator, a binary counter, a pair of readonly memories, and a pair of digital-to-analog converters.

  12. Energy Savings Potential and Opportunities for High-Efficiency Electric Motors in Residential and Commercial Equipment

    SciTech Connect (OSTI)

    Goetzler, William; Sutherland, Timothy; Reis, Callie

    2013-12-04

    This report describes the current state of motor technology and estimates opportunities for energy savings through application of more advanced technologies in a variety of residential and commercial end uses. The objectives of this report were to characterize the state and type of motor technologies used in residential and commercial appliances and equipment and to identify opportunities to reduce the energy consumption of electric motor-driven systems in the residential and commercial sectors through the use of advanced motor technologies. After analyzing the technical savings potential offered by motor upgrades and variable speed technologies, recommended actions are presented.

  13. Hybrid vehicle motor alignment

    DOE Patents [OSTI]

    Levin, Michael Benjamin (Ann Arbor, MI)

    2001-07-03

    A rotor of an electric motor for a motor vehicle is aligned to an axis of rotation for a crankshaft of an internal combustion engine having an internal combustion engine and an electric motor. A locator is provided on the crankshaft, a piloting tool is located radially by the first locator to the crankshaft. A stator of the electric motor is aligned to a second locator provided on the piloting tool. The stator is secured to the engine block. The rotor is aligned to the crankshaft and secured thereto.

  14. Straight and chopped dc performance data for a General Electric 5BT 2366C10 motor and an EV-1 controller. Final report

    SciTech Connect (OSTI)

    Edie, P.C.

    1981-01-01

    This report is intended to supply the electric vehicle manufacturer with performance data on the General Electric 5BT 2366C10 series wound dc motor and EV-1 chopper controller. Data are provided for both straight and chopped dc input to the motor, at 2 motor temperature levels. Testing was done at 6 voltage increments to the motor, and 2 voltage increments to the controller. Data results are presented in both tabular and graphical forms. Tabular information includes motor voltage and current input data, motor speed and torque output data, power data and temperature data. Graphical information includes torque-speed, motor power output-speed, torque-current, and efficiency-speed plots under the various operating conditions. The data resulting from this testing shows the speed-torque plots to have the most variance with operating temperature. The maximum motor efficiency is between 86% and 87%, regardless of temperature or mode of operation. When the chopper is utilized, maximum motor efficiency occurs when the chopper duty cycle approaches 100%. At low duty cycles the motor efficiency may be considerably less than the efficiency for straight dc. Chopper efficiency may be assummed to be 95% under all operating conditions. For equal speeds at a given voltage level, the motor operated in the chopped mode develops slightly more torque than it does in the straight dc mode. System block diagrams are included, along with test setup and procedure information.

  15. High-Speed Photography

    SciTech Connect (OSTI)

    Paisley, D.L.; Schelev, M.Y.

    1998-08-01

    The applications of high-speed photography to a diverse set of subjects including inertial confinement fusion, laser surgical procedures, communications, automotive airbags, lightning etc. are briefly discussed. (AIP) {copyright} {ital 1998 Society of Photo-Optical Instrumentation Engineers.}

  16. Motor System Upgrades Smooth the Way to Savings of $700,000 at...

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

    PDF icon Motor Systems Upgrades Smooth the Way to Savings of 700,000 at Chevron Refinery (January 1999) More Documents & Publications Variable Speed Pumping: A Guide to Successful ...

  17. High-speed

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    speed three-wave polarimeter-interferometer diagnostic for Madison symmetric torus B. H. Deng, D. L. Brower, and W. X. Ding Electrical Engineering Department, University of California, Los Angeles, California 90095 M. D. Wyman, B. E. Chapman, and J. S. Sarff Department of Physics, University of Wisconsin, Madison, Wisconsin 53706 Í‘Received 5 May 2006; presented on 10 May 2006; accepted 11 June 2006; published online 27 September 2006Í’ A high-speed three-wave polarimeter-interferometer

  18. Permanent split capacitor single phase electric motor system

    DOE Patents [OSTI]

    Kirschbaum, Herbert S. (Asheville, NC)

    1984-01-01

    A permanent split capacitor single phase electric motor achieves balanced operation at more than one operating point by adjusting the voltage supplied to the main and auxiliary windings and adjusting the capacitance in the auxiliary winding circuit. An intermediate voltage tap on an autotransformer supplies voltage to the main winding for low speed operation while a capacitive voltage divider is used to adjust the voltage supplied to the auxiliary winding for low speed operation.

  19. Permanent split capacitor single phase electric motor system

    DOE Patents [OSTI]

    Kirschbaum, H.S.

    1984-08-14

    A permanent split capacitor single phase electric motor achieves balanced operation at more than one operating point by adjusting the voltage supplied to the main and auxiliary windings and adjusting the capacitance in the auxiliary winding circuit. An intermediate voltage tap on an autotransformer supplies voltage to the main winding for low speed operation while a capacitive voltage divider is used to adjust the voltage supplied to the auxiliary winding for low speed operation. 4 figs.

  20. Dynein Motor Domain Shows Ring-Shaped Motor, Buttress

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Dynein Motor Domain Shows Ring-Shaped Motor, Buttress Dynein Motor Domain Shows Ring-Shaped Motor, Buttress Print Monday, 28 November 2011 14:52 Movement is fundamental to life. It takes place even at the cellular level where cargo is continually being transported by motor proteins. These tiny machines convert the energy gained from hydrolysing ATP into a series of small conformational changes that allow them to literally "walk" along microscopic tracks. Motor proteins (in the kinesin

  1. Stepping motor controller

    DOE Patents [OSTI]

    Bourret, Steven C. (Los Alamos, NM); Swansen, James E. (Los Alamos, NM)

    1984-01-01

    A stepping motor is microprocessingly controlled by digital circuitry which monitors the output of a shaft encoder adjustably secured to the stepping motor and generates a subsequent stepping pulse only after the preceding step has occurred and a fixed delay has expired. The fixed delay is variable on a real-time basis to provide for smooth and controlled deceleration.

  2. Stepping motor controller

    DOE Patents [OSTI]

    Bourret, S.C.; Swansen, J.E.

    1982-07-02

    A stepping motor is microprocessor controlled by digital circuitry which monitors the output of a shaft encoder adjustably secured to the stepping motor and generates a subsequent stepping pulse only after the preceding step has occurred and a fixed delay has expired. The fixed delay is variable on a real-time basis to provide for smooth and controlled deceleration.

  3. Improve Motor System Performance with MotorMaster+

    SciTech Connect (OSTI)

    2010-08-01

    Fact sheet describes how industrial plants can improve their motor system performance using DOE-AMO's MotorMaster+ software tool.

  4. Motor Systems Assessment Training, Including Use of the Motor...

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

    See http:www.nema.orgpremiummotors To Compare all the motor efficiency standards, see http:www.energy.wsu.eduftp- eppubsengineeringmotorsEfficiencyStandards.pdf 9 Motor ...

  5. BSA Motors | Open Energy Information

    Open Energy Info (EERE)

    BSA Motors Jump to: navigation, search Name: BSA Motors Place: India Product: India-based maker of 2-wheel electric scooters. References: BSA Motors1 This article is a stub. You...

  6. IEMDC -IN-LINE ELECTRIC MOTOR DRIVEN COMPRESSOR

    SciTech Connect (OSTI)

    Michael J. Crowley; Prem N. Bansal; John E. Tessaro

    2004-01-01

    Dresser-Rand completed the preliminary aerodynamic flowpath of the volute and inlet design for the compressor section. This has resulted in considerable progress being made on the development of the compressor section and ultimately towards the successful integration of the IEMDC System design. Significant effort was put forth in the design of aerodynamic components which resulted in a design that meets the limits of aerodynamically induced radial forces previously established. Substantial effort has begun on the mechanical design of the compressor pressure containing case and other internal components. These efforts show progression towards the successful integration of a centrifugal compressor and variable speed electric motor ventilated by the process gas. All efforts continue to confirm the feasibility of the IEMDC system design. During the third quarter reporting period, the focus was to further refine the motor design and to ensure that the IEMDC rotor system supported on magnetic bearing is in compliance with the critical speed and vibration requirements of the API standards 617 and 541. Consequently specification to design magnetic bearings was developed and an RFQ to three magnetic bearing suppliers was issued. Considerable work was also performed to complete preliminary reports on some of the deliverable tasks under phase 1.0. These include specification for the VFD, RFQ for the magnetic bearings, and preliminary write-up for motor instrumentation and control schematic. In order to estimate motor efficiency at various operating points, plots of calculated motor losses, and motor cooling gas flow rates were also prepared. Preliminary evaluations of motor support concepts were performed via FEA to determine modal frequencies. Presentation was made at DOE Morgantown on August 12, 2003 to provide project status update. Preparations for the IEMDC motor-compressor presentation, at the GMRC conference in Salt Lake City to be held on October 5, 2003, were also started. Detailed calculations of cooling gas flow requirements for the motor and magnetic bearings, per several new operating points designated by DR, confirmed that the required gas flow was within the compressor design guidelines. Previous thrust load calculations had confirmed that the magnetic thrust bearing design load capacity of 6,000 lb. was sufficient to handle the net thrust load produced by the motor and compressor pressure loading. Thus the design data that has been generated, for the variable speed 10 MW 12,000 rpm motor, during the last three quarters, continue to confirm the feasibility of an efficient and robust motor design.

  7. AQWON Motors | Open Energy Information

    Open Energy Info (EERE)

    search Name: AQWON-Motors Place: Speinshart, Germany Zip: 92676 Sector: Hydro, Hydrogen Product: AQWON-Motors has developed the first hydrogen powered 2 stroke-engine...

  8. Brandl Motor | Open Energy Information

    Open Energy Info (EERE)

    Brandl Motor Jump to: navigation, search Name: Brandl Motor Address: Calvinstr 24 Place: Berlin Zip: 10557 Region: Germany Sector: Marine and Hydrokinetic Phone Number: +49 30 39...

  9. Motor VFDs | Open Energy Information

    Open Energy Info (EERE)

    VFDs Jump to: navigation, search TODO: Add description List of Motor VFDs Incentives Retrieved from "http:en.openei.orgwindex.php?titleMotorVFDs&oldid521368" Feedback...

  10. Aptera Motors | Open Energy Information

    Open Energy Info (EERE)

    Aptera Motors Jump to: navigation, search Name: Aptera Motors Address: 2778 Loker Avenue West Place: Carlsbad, California Zip: 92008 Region: Southern CA Area Sector: Vehicles...

  11. Improve Motor System Efficiency for a Broad Range of Motors with MotorMaster+ International

    SciTech Connect (OSTI)

    2005-05-01

    Available at no charge, MotorMaster+ International is designed to support motor systems improvement planning at industrial facilities by identifying the most cost-effective choice when deciding to repair or replace older motor models.

  12. High speed door assembly

    DOE Patents [OSTI]

    Shapiro, C.

    1993-04-27

    A high speed door assembly is described, comprising an actuator cylinder and piston rods, a pressure supply cylinder and fittings, an electrically detonated explosive bolt, a honeycomb structured door, a honeycomb structured decelerator, and a structural steel frame encasing the assembly to close over a 3 foot diameter opening within 50 milliseconds of actuation, to contain hazardous materials and vapors within a test fixture.

  13. System and method for motor parameter estimation

    DOE Patents [OSTI]

    Luhrs, Bin; Yan, Ting

    2014-03-18

    A system and method for determining unknown values of certain motor parameters includes a motor input device connectable to an electric motor having associated therewith values for known motor parameters and an unknown value of at least one motor parameter. The motor input device includes a processing unit that receives a first input from the electric motor comprising values for the known motor parameters for the electric motor and receive a second input comprising motor data on a plurality of reference motors, including values for motor parameters corresponding to the known motor parameters of the electric motor and values for motor parameters corresponding to the at least one unknown motor parameter value of the electric motor. The processor determines the unknown value of the at least one motor parameter from the first input and the second input and determines a motor management strategy for the electric motor based thereon.

  14. MotorWeek

    SciTech Connect (OSTI)

    2009-01-01

    In 2008, PBS's MotorWeek, television's original automotive magazine, visited Argonne's Transportation Technology R&D Center "to learn what it really takes to make clean power sources a viable reality."

  15. MotorWeek

    ScienceCinema (OSTI)

    None

    2013-04-19

    In 2008, PBS's MotorWeek, television's original automotive magazine, visited Argonne's Transportation Technology R&D Center "to learn what it really takes to make clean power sources a viable reality."

  16. Motor Energy Conservation Measures

    Energy Science and Technology Software Center (OSTI)

    2010-12-31

    This software requires inputs of simple motor inventory information and calculates the energy and cost benefits of various retrofit opportunities. This tool includes energy conservation measures for: High Efficiency Motor retrofit and Cogged V-belts retrofit. This tool calculates energy savings, demand reduction, cost savings, and building life cycle costs including: simple payback, discounted payback, net-present value, and savings to investment ratio. In addition this tool also displays the environmental benefits of a project.

  17. Mirant: Case 67a: Units 3 & 4 & 5 at Max Load for 12 hours and...

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

    Case 67a: Units 3 & 4 & 5 at Max Load for 12 hours and at Min Load for 12 hours Mirant: Case 67a: Units 3 & 4 & 5 at Max Load for 12 hours and at Min Load for 12 hours Docket No....

  18. Noise-cancelling quadrature magnetic position, speed and direction sensor

    DOE Patents [OSTI]

    Preston, Mark A. (Niskayuna, NY); King, Robert D. (Schenectady, NY)

    1996-01-01

    An array of three magnetic sensors in a single package is employed with a single bias magnet for sensing shaft position, speed and direction of a motor in a high magnetic noise environment. Two of the three magnetic sensors are situated in an anti-phase relationship (i.e., 180.degree. out-of-phase) with respect to the relationship between the other of the two sensors and magnetically salient target, and the third magnetic sensor is situated between the anti-phase sensors. The result is quadrature sensing with noise immunity for accurate relative position, speed and direction measurements.

  19. Control system for a wound-rotor motor

    DOE Patents [OSTI]

    Ellis, James N. (Chatsworth, CA)

    1983-01-01

    A load switching circuit for switching two or more transformer taps under load carrying conditions includes first and second parallel connected bridge rectifier circuits which control the selective connection of a direct current load to taps of a transformer. The first bridge circuit is normally conducting so that the load is connected to a first tap through the first bridge circuit. To transfer the load to the second tap, a switch is operable to connect the second bridge circuit to a second tap, and when the second bridge circuit begins to conduct, the first bridge circuit ceases conduction because the potential at the second tap is higher than the potential at the first tap, and the load is thus connected to the second tap through the second bridge circuit. The load switching circuit is applicable in a motor speed controller for a wound-rotor motor for effecting tap switching as a function of motor speed while providing a stepless motor speed control characteristic.

  20. Radial-Gap Permanent Magnet Motor and Drive Research FY 2004

    SciTech Connect (OSTI)

    McKeever, J.W.

    2005-02-11

    The objective of this task was to study permanent magnet (PM) radial-gap traction drive systems that could meet the U.S. Department of Energy FreedomCAR Program's 2010 goals to expose weaknesses or identify strengths. Initially, the approach was to compare attributes such as physical deformations during operation, performance (torque, power, efficiency versus speed), material requirements (strength), material costs, manufacturability, weight, power density, specific power, reliability, and drivability for specific motors. Three motors selected were the commercially available 60-kW radial-gap surface-mounted PM motor manufactured by UQM Technologies, Inc.; a hypothetical PM motor with rotor-supported magnets similar to the Honda MCF-21; and Delphi's automotive electric machine drive motor, whose rotor is a ferromagnetic cylinder, held at one end by a shaft that supports the magnets on its inner surface. Potential problems have appeared related to PM motors, such as (1) high no-load spin losses and high operational power losses, probably from eddy current losses in the rotor; (2) the undemonstrated dual mode inverter control (DMIC) for driving a brushless dc motor (BDCM) (UQM and Delphi motors); (3) uncertainty about the potential for reducing current with DMIC; and (4) uncertainty about the relation between material requirements and maximum rotor speed. Therefore, the approach was changed to study in detail three of the comparison attributes: drivability, performance, and material requirements. Drivability and related problems were examined by demonstrating that DMIC may be used to drive an 18-pole 30-kW PM motor to 6000 rpm, where the maximum electrical frequency is 900 Hz. An available axial-gap test motor with 18 poles was used because its control is identical to that of a radial gap PM motor. Performance was analytically examined, which led to a derivation showing that DMIC controls a PM motor so that the motor uses minimum current to produce any power regardless of speed for relative speeds, n = {omega}/{omega}{sub base} {ge} 2. Performance was also examined with efficiency measurements during the 30-kW PM motor test. Material requirements were examined with finite-element analyses (FEA) to determine the speed and location where yield starts and the corresponding deformations and stresses.

  1. Fractional order PID controller for improvement of PMSM speed control in aerospace applications

    SciTech Connect (OSTI)

    Saraji, Ali Motalebi; Ghanbari, Mahmood

    2014-12-10

    Because of the benefits reduced size, cost and maintenance, noise, CO2 emissions and increased control flexibility and precision, to meet these expectations, electrical equipment increasingly utilize in modern aircraft systems and aerospace industry rather than conventional mechanic, hydraulic, and pneumatic power systems. Electric motor drives are capable of converting electrical power to drive actuators, pumps, compressors, and other subsystems at variable speeds. In the past decades, permanent magnet synchronous motor (PMSM) and brushless dc (BLDC) motor were investigated for aerospace applications such as aircraft actuators. In this paper, the fractional-order PID controller is used in the design of speed loop of PMSM speed control system. Having more parameters for tuning fractional order PID controller lead to good performance ratio to integer order. This good performance is shown by comparison fractional order PID controller with the conventional PI and tuned PID controller by Genetic algorithm in MATLAB soft wear.

  2. MotorMaster+ | Department of Energy

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

    MotorMaster+ April 10, 2014 - 3:17pm Addthis MotorMaster+ MotorMaster+ is a free online National Electrical Manufacturers Association (NEMA) Premium® efficiency motor selection and management tool that supports motor and motor systems planning by identifying the most efficient action for a given repair or motor purchase decision. The tool includes a catalog of more than 20,000 low-voltage induction motors, and features motor inventory management tools, maintenance log tracking, efficiency

  3. Bent shaft motor

    DOE Patents [OSTI]

    Benavides, G.L.

    1998-05-05

    A nonelectromagnetic motor comprising a base, a bent shaft which is rotatable relative to the base wherein the bent shaft comprises a straight portion aligned with a main axis and an offset portion that is offset with respect to the main axis; and a drive means for driving the offset portion of the bent shaft along a generally circular path in a plane perpendicular to the main axis to rotate the bent shaft. The bent shaft and drive means for driving the bent shaft can be selected from piezoelectric, magnetostrictive, rheological and shape memory alloys. The drive means of the nonelectromagnetic motor can additionally comprise a shell which shell surrounds and houses the bent shaft and precesses or gyrates which in turn causes the bent drive shaft to rotate. The nonelectromagnetic motor does not rely on friction for the application of torque upon a rotor. 11 figs.

  4. Bent shaft motor

    DOE Patents [OSTI]

    Benavides, Gilbert L. (Albuquerque, NM)

    1998-01-01

    A nonelectromagnetic motor comprising a base, a bent shaft which is rotable relative to the base wherein the bent shaft comprises a straight portion aligned with a main axis and an offset portion that is offset with respect to the main axis; and a drive means for driving the offset portion of the bent shaft along a generally circular path in a plane perpendicular to the main axis to rotate the bent shaft. The bent shaft and drive means for driving the bent shaft can be selected from piezoelectric, magnetostrictive, rheological and shape memory alloys. The drive means of the nonelectromagnetic motor can additionally comprise a shell which shell surrounds and houses the bent shaft and precesses or gyrates which in turn causes the bent drive shaft to rotate. The nonelectromagnetic motor does not rely on friction for the application of torque upon a rotor.

  5. High speed flywheel

    DOE Patents [OSTI]

    McGrath, Stephen V. (Knoxville, TN)

    1991-01-01

    A flywheel for operation at high speeds utilizes two or more ringlike coments arranged in a spaced concentric relationship for rotation about an axis and an expansion device interposed between the components for accommodating radial growth of the components resulting from flywheel operation. The expansion device engages both of the ringlike components, and the structure of the expansion device ensures that it maintains its engagement with the components. In addition to its expansion-accommodating capacity, the expansion device also maintains flywheel stiffness during flywheel operation.

  6. Magnet Motor Corp | Open Energy Information

    Open Energy Info (EERE)

    Magnet Motor Corp Jump to: navigation, search Name: Magnet Motor Corp. Place: Starnberg, Germany Zip: 82319 Sector: Vehicles Product: Magnet motor Corp has been developing and...

  7. Motor current signature analysis method for diagnosing motor operated devices

    DOE Patents [OSTI]

    Haynes, Howard D. (Kingston, TN); Eissenberg, David M. (Oak Ridge, TN)

    1990-01-01

    A motor current noise signature analysis method and apparatus for remotely monitoring the operating characteristics of an electric motor-operated device such as a motor-operated valve. Frequency domain signal analysis techniques are applied to a conditioned motor current signal to distinctly identify various operating parameters of the motor driven device from the motor current signature. The signature may be recorded and compared with subsequent signatures to detect operating abnormalities and degradation of the device. This diagnostic method does not require special equipment to be installed on the motor-operated device, and the current sensing may be performed at remote control locations, e.g., where the motor-operated devices are used in accessible or hostile environments.

  8. Dynein Motor Domain Shows Ring-Shaped Motor, Buttress

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Dynein Motor Domain Shows Ring-Shaped Motor, Buttress Print Movement is fundamental to life. It takes place even at the cellular level where cargo is continually being transported...

  9. ARM - Field Campaign - 2006 MAX-Mex-Megacity Aerosol eXperiment - Mexico

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    City 6 MAX-Mex-Megacity Aerosol eXperiment - Mexico City ARM Data Discovery Browse Data Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Campaign : 2006 MAX-Mex-Megacity Aerosol eXperiment - Mexico City 2006.03.03 - 2006.03.28 Lead Scientist : Jeffrey Gaffney For data sets, see below. Abstract A 4-week field campaign was conducted in and downwind of Mexico City during March 2006. The Megacity Aerosol eXperiment - MEXico City (MAX-MEX)

  10. max walltime for low queue is increased to 24 hrs on Hopper

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    max walltime for low queue is increased to 24 hrs on Hopper max walltime for low queue is increased to 24 hrs on Hopper May 31, 2012 by Helen He We have increased the max walltime for the low queue on Hopper from 12 to 24 hrs. Subscribe via RSS Subscribe Browse by Date February 2013 September 2012 August 2012 May 2012 April 2012 March 2012 February 2012 January 2012 November 2011 October 2011 September 2011 August 2011 July 2011 June 2011 May 2011 April 2011 March 2011 February 2011 January 2011

  11. runtime error message: "apsched: request exceeds max nodes, alloc"

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    apsched: request exceeds max nodes, alloc" runtime error message: "apsched: request exceeds max nodes, alloc" September 12, 2014 Symptom: User jobs with single or multiple apruns in a batch script may get this runtime error. "apsched: request exceeds max nodes, alloc". This problem is intermittent, started in April, then mid July, and again since late August. Status: This problem is identified as a problem when Torque/Moab batch scheduler becomes out of sync with the

  12. High speed transient sampler

    DOE Patents [OSTI]

    McEwan, Thomas E. (Livermore, CA)

    1995-01-01

    A high speed sampler comprises a meandered sample transmission line for transmitting an input signal, a straight strobe transmission line for transmitting a strobe signal, and a plurality of sampling gates along the transmission lines. The sampling gates comprise a four terminal diode bridge having a first strobe resistor connected from a first terminal of the bridge to the positive strobe line, a second strobe resistor coupled from the third terminal of the bridge to the negative strobe line, a tap connected to the second terminal of the bridge and to the sample transmission line, and a sample holding capacitor connected to the fourth terminal of the bridge. The resistance of the first and second strobe resistors is much higher than the signal transmission line impedance in the preferred system. This results in a sampling gate which applies a very small load on the sample transmission line and on the strobe generator. The sample holding capacitor is implemented using a smaller capacitor and a larger capacitor isolated from the smaller capacitor by resistance. The high speed sampler of the present invention is also characterized by other optimizations, including transmission line tap compensation, stepped impedance strobe line, a multi-layer physical layout, and unique strobe generator design. A plurality of banks of such samplers are controlled for concatenated or interleaved sample intervals to achieve long sample lengths or short sample spacing.

  13. High speed transient sampler

    DOE Patents [OSTI]

    McEwan, T.E.

    1995-11-28

    A high speed sampler comprises a meandered sample transmission line for transmitting an input signal, a straight strobe transmission line for transmitting a strobe signal, and a plurality of sampling gates along the transmission lines. The sampling gates comprise a four terminal diode bridge having a first strobe resistor connected from a first terminal of the bridge to the positive strobe line, a second strobe resistor coupled from the third terminal of the bridge to the negative strobe line, a tap connected to the second terminal of the bridge and to the sample transmission line, and a sample holding capacitor connected to the fourth terminal of the bridge. The resistance of the first and second strobe resistors is much higher than the signal transmission line impedance in the preferred system. This results in a sampling gate which applies a very small load on the sample transmission line and on the strobe generator. The sample holding capacitor is implemented using a smaller capacitor and a larger capacitor isolated from the smaller capacitor by resistance. The high speed sampler of the present invention is also characterized by other optimizations, including transmission line tap compensation, stepped impedance strobe line, a multi-layer physical layout, and unique strobe generator design. A plurality of banks of such samplers are controlled for concatenated or interleaved sample intervals to achieve long sample lengths or short sample spacing. 17 figs.

  14. Dynein Motor Domain Shows Ring-Shaped Motor, Buttress

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Dynein Motor Domain Shows Ring-Shaped Motor, Buttress Print Movement is fundamental to life. It takes place even at the cellular level where cargo is continually being transported by motor proteins. These tiny machines convert the energy gained from hydrolysing ATP into a series of small conformational changes that allow them to literally "walk" along microscopic tracks. Motor proteins (in the kinesin and myosin families) have been extensively studied by x-ray crystallography, but

  15. Dynein Motor Domain Shows Ring-Shaped Motor, Buttress

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Dynein Motor Domain Shows Ring-Shaped Motor, Buttress Print Movement is fundamental to life. It takes place even at the cellular level where cargo is continually being transported by motor proteins. These tiny machines convert the energy gained from hydrolysing ATP into a series of small conformational changes that allow them to literally "walk" along microscopic tracks. Motor proteins (in the kinesin and myosin families) have been extensively studied by x-ray crystallography, but

  16. Dynein Motor Domain Shows Ring-Shaped Motor, Buttress

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Dynein Motor Domain Shows Ring-Shaped Motor, Buttress Print Movement is fundamental to life. It takes place even at the cellular level where cargo is continually being transported by motor proteins. These tiny machines convert the energy gained from hydrolysing ATP into a series of small conformational changes that allow them to literally "walk" along microscopic tracks. Motor proteins (in the kinesin and myosin families) have been extensively studied by x-ray crystallography, but

  17. Dynein Motor Domain Shows Ring-Shaped Motor, Buttress

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Dynein Motor Domain Shows Ring-Shaped Motor, Buttress Print Movement is fundamental to life. It takes place even at the cellular level where cargo is continually being transported by motor proteins. These tiny machines convert the energy gained from hydrolysing ATP into a series of small conformational changes that allow them to literally "walk" along microscopic tracks. Motor proteins (in the kinesin and myosin families) have been extensively studied by x-ray crystallography, but

  18. Dynein Motor Domain Shows Ring-Shaped Motor, Buttress

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Dynein Motor Domain Shows Ring-Shaped Motor, Buttress Print Movement is fundamental to life. It takes place even at the cellular level where cargo is continually being transported by motor proteins. These tiny machines convert the energy gained from hydrolysing ATP into a series of small conformational changes that allow them to literally "walk" along microscopic tracks. Motor proteins (in the kinesin and myosin families) have been extensively studied by x-ray crystallography, but

  19. Dynein Motor Domain Shows Ring-Shaped Motor, Buttress

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Dynein Motor Domain Shows Ring-Shaped Motor, Buttress Print Movement is fundamental to life. It takes place even at the cellular level where cargo is continually being transported by motor proteins. These tiny machines convert the energy gained from hydrolysing ATP into a series of small conformational changes that allow them to literally "walk" along microscopic tracks. Motor proteins (in the kinesin and myosin families) have been extensively studied by x-ray crystallography, but

  20. Research Laboratories General Motors Corporation General Motors Technical Center

    Office of Legacy Management (LM)

    MI. 1-q Research Laboratories General Motors Corporation General Motors Technical Center Warren, Michigan 48090 January 21, 1977 Occupational Health Standards Branch Office of Standards Development U. S. Nuclear Requlatory Commission Washington, D.C. 20555 Attention: Mr. Robert E. Alexander, Chief Dear Mr. Alexander: In 1974, General Motors Corporation acquired a manufacturing plant in Adrian, Michigan. On October 21, 1976, General Motors announced that work would begin immediately to prepare

  1. Method for assessing motor insulation on operating motors

    DOE Patents [OSTI]

    Kueck, J.D.; Otaduy, P.J.

    1997-03-18

    A method for monitoring the condition of electrical-motor-driven devices is disclosed. The method is achieved by monitoring electrical variables associated with the functioning of an operating motor, applying these electrical variables to a three phase equivalent circuit and determining non-symmetrical faults in the operating motor based upon symmetrical components analysis techniques. 15 figs.

  2. Method for assessing motor insulation on operating motors

    DOE Patents [OSTI]

    Kueck, John D. (Oak Ridge, TN); Otaduy, Pedro J. (Oak Ridge, TN)

    1997-01-01

    A method for monitoring the condition of electrical-motor-driven devices. The method is achieved by monitoring electrical variables associated with the functioning of an operating motor, applying these electrical variables to a three phase equivalent circuit and determining non-symmetrical faults in the operating motor based upon symmetrical components analysis techniques.

  3. AGNI Motors | Open Energy Information

    Open Energy Info (EERE)

    India Zip: 370 230 Sector: Vehicles Product: UK-based manufacturer of DC Motors and Battery Management Systems for Electric Vehicles References: AGNI Motors1 This article is a...

  4. Motor gasolines, summer 1985

    SciTech Connect (OSTI)

    Dickson, C.L.; Woodward, P.W.

    1986-06-01

    Samples for this report were collected from service stations throughout the country and were analyzed in laboratories of various refiners, motor manufacturers, chemical companies, and research institutes. Analytical data for the 1571 motor gasoline and 206 motor gasoline/alcohol blend samples were submitted to the National Institute for Petroleum and Energy Research (NIPER), Bartlesville, Oklahoma, for reporting. This work is jointly funded by the American Petroleum Institute (API) and the United States Department of Energy (DOE), Bartlesville Project Office (DOE cooperative agreement No. FC22-83FE60149). The data are representative of the products of 62 marketers, large and small, which manufacture and supply gasoline. They are tabulated by groups according to brands (unlabeled) and grades for 17 marketing districts into which the country is divided. A map shows the marketing areas, districts, and sampling locations. The report includes trend charts of selected properties of motor fuels over the last twenty-five years. Twelve octane distribution graphs for leaded and unleaded grades of gasoline are presented for areas 1, 2, 3, and 4. The average antiknock (octane) index (R + M)/2 of gasoline sold in the United States during June, July, and August 1985 was 87.4 for unleaded below 90.0, 91.7 for unleaded 90.0 and above, and 88.8 for leaded below 93.0 grades of gasoline. Analyses of motor gasoline containing various alcohols are reported in separate tables beginning with this report. The average antiknock (octane) index (R + M)/2 of gasoline containing alcohols was 88.6 for unleaded below 90.0, 91.4 for unleaded 90.0 and above, and 90.2 for leaded below 93.0 grades of gasoline. 16 figs., 8 tabs.

  5. Property:OpenEI/UtilityRate/DemandRateStructure/Tier5Max | Open...

    Open Energy Info (EERE)

    navigation, search This is a property of type Number. Retrieved from "http:en.openei.orgwindex.php?titleProperty:OpenEIUtilityRateDemandRateStructureTier5Max&oldid539754...

  6. Property:OpenEI/UtilityRate/EnergyRateStructure/Tier1Max | Open...

    Open Energy Info (EERE)

    navigation, search This is a property of type Number. Retrieved from "http:en.openei.orgwindex.php?titleProperty:OpenEIUtilityRateEnergyRateStructureTier1Max&oldid539766...

  7. Property:OpenEI/UtilityRate/DemandRateStructure/Tier4Max | Open...

    Open Energy Info (EERE)

    navigation, search This is a property of type Number. Retrieved from "http:en.openei.orgwindex.php?titleProperty:OpenEIUtilityRateDemandRateStructureTier4Max&oldid539751...

  8. text in "Max kWh" fields | OpenEI Community

    Open Energy Info (EERE)

    it should as we are trying to prevent users from writing "less than X", "greater than Y", etc. and follow the intention of the "Max kWh" field. Also there should be a warning...

  9. Multiple stage miniature stepping motor

    DOE Patents [OSTI]

    Niven, William A. (Livermore, CA); Shikany, S. David (Danville, CA); Shira, Michael L. (Fremont, CA)

    1981-01-01

    A stepping motor comprising a plurality of stages which may be selectively activated to effect stepping movement of the motor, and which are mounted along a common rotor shaft to achieve considerable reduction in motor size and minimum diameter, whereby sequential activation of the stages results in successive rotor steps with direction being determined by the particular activating sequence followed.

  10. Princeton, Max Planck Society launch new research center for plasma physics

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    | Princeton Plasma Physics Lab Princeton, Max Planck Society launch new research center for plasma physics By John Greenwald March 30, 2012 Tweet Widget Google Plus One Share on Facebook (From left to right) Princeton University Professor of Astrophysical Sciences James Stone, Princeton University President Shirley M. Tilghman, Princeton University Dean for Research A. J. Stewart Smith, Max Planck Society President Peter Gruss, and Consul General of the Federal Republic of Germany in New

  11. THE MASS-RICHNESS RELATION OF MaxBCG CLUSTERS FROM QUASAR LENSING

    Office of Scientific and Technical Information (OSTI)

    MAGNIFICATION USING VARIABILITY (Journal Article) | SciTech Connect THE MASS-RICHNESS RELATION OF MaxBCG CLUSTERS FROM QUASAR LENSING MAGNIFICATION USING VARIABILITY Citation Details In-Document Search Title: THE MASS-RICHNESS RELATION OF MaxBCG CLUSTERS FROM QUASAR LENSING MAGNIFICATION USING VARIABILITY Accurate measurement of galaxy cluster masses is an essential component not only in studies of cluster physics but also for probes of cosmology. However, different mass measurement

  12. Higher Efficiency HVAC Motors | Department of Energy

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

    Higher Efficiency HVAC Motors Higher Efficiency HVAC Motors Advanced permanent magnet motor technology will drive HVAC energy savings. Advanced permanent magnet motor technology will drive HVAC energy savings. Advanced permanent magnet motor technology will drive HVAC energy savings. Advanced permanent magnet motor technology will drive HVAC energy savings. Advanced permanent magnet motor technology will drive HVAC energy savings. Advanced permanent magnet motor technology will drive HVAC energy

  13. When to Purchase Premium Efficiency Motors

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

    to Purchase Premium Efficiency Motors Consider premium effciency motors for new motor procurements when specifying motor-driven equipment, repairing or rewinding failed standard effciency motors, or as replacements for older, operable lower effciency motors. This is particularly important when the existing motor has been rewound or is oversized and underloaded. In August 2001, the National Electrical Manufacturers Association (NEMA) introduced a premium energy-effciency motor standard. Under

  14. Adjustable Speed Drive Part-Load Efficiency

    SciTech Connect (OSTI)

    Not Available

    2008-07-01

    This is one in a series of tip sheets to help manufacturers optimize their industrial motor and motor-driven systems.

  15. Motor technology for mining applications advances

    SciTech Connect (OSTI)

    Fiscor, S.

    2009-08-15

    AC motors are steadily replacing DC motors in mining and mineral processing equipment, requiring less maintenance. The permanent magnet rotor, or the synchronous motor, has enabled Blador to introduce a line of cooling tower motors. Synchronous motors are soon likely to take over from the induction motor. 1 photo.

  16. Ultra-Efficient and Power Dense Electric Motors for U. S. Industry

    SciTech Connect (OSTI)

    Melfi, Michael J.; Schiferl, Richard F.; Umans, Stephen D.

    2013-03-12

    The primary purpose of this project was to combine the ease-of-installation and ease-of-use attributes of industrial induction motors with the low-loss and small size and weight advantages of PM motors to create an ultra-efficient, high power density industrial motor that can be started across-the-line or operated from a standard, Volts/Hertz drive without the need for a rotor position feedback device. PM motor products that are currently available are largely variable speed motors that require a special adjustable speed drive with rotor position feedback. The reduced size and weight helps to offset the magnet cost in order make these motors commercially viable. The scope of this project covers horsepower ratings from 20 ? 500. Prototypes were built and tested at ratings ranging from 30 to 250 HP. Since fans, pumps and compressors make up a large portion of industrial motor applications, the motor characteristics are tailored to those applications. Also, since there is extensive use of adjustable frequency inverters in these applications, there is the opportunity to design for an optimal pole number and operate at other than 60 Hz frequency when inverters are utilized. Designs with four and eight pole configurations were prototyped as part of this work. Four pole motors are the most commonly used configuration in induction motors today. The results of the prototype design, fabrication, and testing were quite successful. The 50 HP rating met all of the design goals including efficiency and power density. Tested values of motor losses at 50 HP were 30% lower than energy efficient induction motors and the motor weight is 35% lower than the energy efficient induction motor of the same rating. Further, when tested at the 30 HP rating that is normally built in this 286T frame size, the efficiency far exceeds the project design goals with 30 HP efficiency levels indicating a 55% reduction in loss compared to energy efficient motors with a motor weight that is a few percentage points lower than the energy efficient motor. This 30 HP rating full load efficiency corresponds to a 46% reduction in loss compared to a 30 HP NEMA Premium? efficient motor. The cost goals were to provide a two year or shorter efficiency-based payback of a price premium associated with the magnet cost in these motors. That goal is based on 24/7 operation with a cost of electricity of 10 cents per kW-hr. Similarly, the 250 HP prototype efficiency testing was quite successful. In this case, the efficiency was maximized with a slightly less aggressive reduction in active material. The measured full load efficiency of 97.6% represents in excess of a 50% loss reduction compared to the equivalent NEMA Premium Efficiency induction motor. The active material weight reduction was a respectable 14.5% figure. This larger rating demonstrated both the scalability of this technology and also the ability to flexibly trade off power density and efficiency. In terms of starting performance, the 30 ? 50 HP prototypes were very extensively tested. The demonstrated capability included the ability to successfully start a load with an inertia of 25 times the motor?s own inertia while accelerating against a load torque following a fan profile at the motor?s full nameplate power rating. This capability will provide very wide applicability of this motor technology. The 250 HP prototype was also tested for starting characteristics, though without a coupled inertia and load torque. As a result it was not definitively proven that the same 25 times the motor?s own inertia could be started and synchronized successfully at 250 HP. Finite element modeling implies that this load could be successfully started, but it has not yet been confirmed by a test.

  17. Motor gasolines, summer 1983

    SciTech Connect (OSTI)

    Shelton, E.M.

    1984-02-01

    The samples were collected from service stations throughout the country and were analyzed in the laboratories of various refiners, motor manufacturers, chemical companies, and research institutes. The analytical data for 1583 samples of motor gasoline, were submitted to the National Institute for Petroleum and Energy Research, Bartlesville, Oklahoma for study, necessary calculations, and compilation under a cooperative agreement between the National Institute for Petroleum and Energy Research (NIPER) and the American Petroleum Institute (API). They represent the products of 48 companies, large and small, which manufacture and supply gasoline. These data are tabulated by groups according to brands (unlabeled) and grades for 17 marketing districts into which the country is divided. A map included in this report, shows marketing areas, districts and sampling locations. The report also includes charts indicating the trends of selected properties of motor fuels since 1959. Sixteen octane distribution percent charts for areas 1, 2, 3, and 4 for unleaded antiknock index (R+M)/2 below 90.0, unleaded antiknock index (R+M)/2 90.0 and above, and leaded antiknock index (R+M)/2 below 93.0 grades of gasoline are presented in this report. The antiknock (octane) index (R+M)/2 averages of gasoline sold in this country were 87.5 for unleaded below 90.0, 91.4 for unleaded 90.0 and above, and 89.0 for leaded below 93.0 grades of gasoline. 16 figures, 5 tables.

  18. Motor gasolines, Summer 1982

    SciTech Connect (OSTI)

    Shelton, E.M.

    1983-03-01

    The samples were collected from service stations throughout the country and were analyzed in the laboratories of various refiners, motor manufacturers, and chemical companies. The analytical data for 796 samples of motor gasoline, were submitted to the Bartlesville Energy Technology Center for study, necessary calculations, and compilation under a cooperative agreement between the Bartlesville Energy Technology Center (BETC) and the American Petroleum Institute (API). They represent the products of 22 companies, large and small, which manufacture and supply gasoline. These data are tabulated by groups according to brands (unlabeled) and grades for 17 marketing districts into which the country is divided. A map included in this report, shows marketing areas, districts and sampling locations. The report also includes charts indicating the trends of selected properties of motor fuels since 1959. Sixteen octane distribution percent charts for areas 1, 2, 3, and 4 for unleaded antiknock index (R + M)/2 below 90.0, unleaded antiknock index (R + M)/2 90.0 and above, leaded antiknock index (R + M)/2 below 93.0, and leaded antiknock index (R + M)/2 93.0 and above grades of gasoline are presented in this report. The antiknock (octane) index (R + M)/2 averages of gasoline sold in this country were 87.3 for unleaded below 90.0, 91.7 for unleaded 90.0 and above, 89.0 for leaded below 93.0, and no data in this report for 93.0 and above grades of leaded gasoline.

  19. Motor Fuel Excise Taxes

    SciTech Connect (OSTI)

    2015-09-01

    A new report from the National Renewable Energy Laboratory (NREL) explores the role of alternative fuels and energy efficient vehicles in motor fuel taxes. Throughout the United States, it is common practice for federal, state, and local governments to tax motor fuels on a per gallon basis to fund construction and maintenance of our transportation infrastructure. In recent years, however, expenses have outpaced revenues creating substantial funding shortfalls that have required supplemental funding sources. While rising infrastructure costs and the decreasing purchasing power of the gas tax are significant factors contributing to the shortfall, the increased use of alternative fuels and more stringent fuel economy standards are also exacerbating revenue shortfalls. The current dynamic places vehicle efficiency and petroleum use reduction polices at direct odds with policies promoting robust transportation infrastructure. Understanding the energy, transportation, and environmental tradeoffs of motor fuel tax policies can be complicated, but recent experiences at the state level are helping policymakers align their energy and environmental priorities with highway funding requirements.

  20. Adjustable speed drives: Applications and R&D needs

    SciTech Connect (OSTI)

    Stefanovic, V.R.

    1995-09-01

    The largest opportunity for the growth of adjustable speed drives (ASDs) during the next 5-6 years is in pump, fan and compressor (PFC) applications where a constant, fixed speed operation is converted to adjustable speed in order to realize energy savings. Inverter supplied induction motors are and will continue to be predominately used in these applications. Over the long term (10-15 years), the greatest ASD growth is expected in large volume consumer applications: first in hybrid electric vehicles (EVs) and in residential heating, ventilation and air-conditioning (HVAC). Both induction and a variety of AC Permanent Magnet motors are expected to be the dominant technology in this new field. The traditional ASD applications in industries which require adjustable speed (such as machine tools, robotics, steel rolling, extruders, paper mill finishing lines, etc.) offer a relatively limited potential for above average ASD growth since most of these applications have already converted to electronic speed control. As a result, ASD growth in this sector will essentially track the growth of the corresponding industries. If realized, both short and long term ASD growth opportunities will result in significant advancements of ASD technology, which will then substantially affect all other, more fragmented, ASD applications. In fact, any single large volume ASD application will serve as a catalyst for improving ASD characteristics in all other ASD applications with the same voltage rating. ASD cost and reliability (defined in the context of application compatibility) are the two most important factors which will determine whether the ASD growth opportunities are realized. Conversely, any technological improvement which carries a cost increase will be restricted to niche applications, at best. Consequently, future R & D efforts should be directed to secure reduction in ASD cost and improvement in ASD reliability. A specific action plan is outlined in this report.

  1. Brushed permanent magnet DC MLC motor operation in an external magnetic field

    SciTech Connect (OSTI)

    Yun, J.; St Aubin, J.; Rathee, S.; Fallone, B. G.

    2010-05-15

    Purpose: Linac-MR systems for real-time image-guided radiotherapy will utilize the multileaf collimators (MLCs) to perform conformal radiotherapy and tumor tracking. The MLCs would be exposed to the external fringe magnetic fields of the linac-MR hybrid systems. Therefore, an experimental investigation of the effect of an external magnetic field on the brushed permanent magnet DC motors used in some MLC systems was performed. Methods: The changes in motor speed and current were measured for varying external magnetic field strengths up to 2000 G generated by an EEV electromagnet. These changes in motor characteristics were measured for three orientations of the motor in the external magnetic field, mimicking changes in motor orientations due to installation and/or collimator rotations. In addition, the functionality of the associated magnetic motor encoder was tested. The tested motors are used with the Varian 120 leaf Millennium MLC (Maxon Motor half leaf and full leaf motors) and the Varian 52 leaf MKII MLC (MicroMo Electronics leaf motor) including a carriage motor (MicroMo Electronics). Results: In most cases, the magnetic encoder of the motors failed prior to any damage to the gearbox or the permanent magnet motor itself. This sets an upper limit of the external magnetic field strength on the motor function. The measured limits of the external magnetic fields were found to vary by the motor type. The leaf motor used with a Varian 52 leaf MKII MLC system tolerated up to 450{+-}10 G. The carriage motor tolerated up to 2000{+-}10 G field. The motors used with the Varian 120 leaf Millennium MLC system were found to tolerate a maximum of 600{+-}10 G. Conclusions: The current Varian MLC system motors can be used for real-time image-guided radiotherapy coupled to a linac-MR system, provided the fringe magnetic fields at their locations are below the determined tolerance levels. With the fringe magnetic fields of linac-MR systems expected to be larger than the tolerance levels determined, some form of magnetic shielding would be required.

  2. Control of Surface Mounted Permanent Magnet Motors with Special Application to Fractional-Slot Motors with Concentrated Windings

    SciTech Connect (OSTI)

    McKeever, John W; Patil, Niranjan; Lawler, Jack

    2007-07-01

    A 30 pole, 6 kW, and 6000 maximum revolutions per minute (rpm) prototype of the permanent magnet synchronous motor (PMSM) with fractional-slot concentrated windings (FSCW) has been designed, built, and tested at the University of Wisconsin at Madison (UWM). This machine has significantly more inductance than that of regular PMSMs. The prototype was delivered in April 2006 to the Oak Ridge National Laboratory (ORNL) for testing and development of a controller that will achieve maximum efficiency. In advance of the test/control development effort, ORNL has used the PMSM models developed over a number of previous studies to study how steady state performance of high inductance PMSM machines relates to control issues. This report documents the results of this research. The amount of inductance that enables the motor to achieve infinite constant power speed ratio (CPSR) is given by L{sub {infinity}} = E{sub b}/{Omega}{sub b}I{sub R}, where E{sub b} is the root-mean square (rms) magnitude of the line-to-neutral back-electromotive force (emf) at base speed, {Omega}{sub b} is the base speed in electrical radians per second, and I{sub R} is the rms current rating of the motor windings. The prototype machine that was delivered to ORNL has about 1.5 times as much inductance as a typical PMSM with distributed integral slot windings. The inventors of the FSCW method, who designed the prototype machine, remarked that they were 'too successful' in incorporating inductance into their machine and that steps would be taken to modify the design methodology to reduce the inductance to the optimum value. This study shows a significant advantage of having the higher inductance rather than the optimal value because it enables the motor to develop the required power at lower current thereby reducing motor and inverter losses and improving efficiency. The main problem found with high inductance machines driven by a conventional phase advance (CPA) method is that the motor current at high speed depends solely on machine parameters and is virtually independent of the load level and the direct current (dc) supply voltage. Thus, the motor current is virtually the same at no load as at full load resulting in poor efficiency at less than full load conditions. While an inductance higher than the value cited above is warranted, it still does not ensure that the motor current is proportional to load; consequently, the problem of low efficiency at high speed and partial load is not resolved but is only mitigated. A common definition of 'base speed' is the speed at which the voltage applied to the motor armature is equal to the magnitude of the back-emf. The results in this study indicate that the dc supply voltage should be adequate to drive rated current into the motor winding at the specified base speed. At a minimum this requires sufficient voltage to overcome not only the back-emf but also the voltage drop across the internal impedance of the machine. For a high inductance PMSM, the internal impedance at base speed can be considerable and substantial additional voltage is required to overcome the internal voltage drop. It is further shown that even more voltage than the minimum required for injecting rated current at base speed can be beneficial by allowing the required power to be developed at lower current, which reduces losses in the motor and inverter components. Further, it is shown that the current is minimized at a unique speed; consequently, there may be room for optimization if the drive spends a substantial amount of its operating life at a certain speed (for example 60 mph). In this study, fundamental frequency phasor models are developed for a synchronous PMSM and the control systems that drive them is CPA. The models were compared with detailed simulations to show their validity. The result was used to design a traction drive control system with optimized efficiency to drive the fractional-slot motor with concentrated windings. The goal is to meet or exceed the FreedomCAR inverter cost and performance targets.

  3. Method and system for early detection of incipient faults in electric motors

    DOE Patents [OSTI]

    Parlos, Alexander G; Kim, Kyusung

    2003-07-08

    A method and system for early detection of incipient faults in an electric motor are disclosed. First, current and voltage values for one or more phases of the electric motor are measured during motor operations. A set of current predictions is then determined via a neural network-based current predictor based on the measured voltage values and an estimate of motor speed values of the electric motor. Next, a set of residuals is generated by combining the set of current predictions with the measured current values. A set of fault indicators is subsequently computed from the set of residuals and the measured current values. Finally, a determination is made as to whether or not there is an incipient electrical, mechanical, and/or electromechanical fault occurring based on the comparison result of the set of fault indicators and a set of predetermined baseline values.

  4. Finished Motor Gasoline Net Production

    Gasoline and Diesel Fuel Update (EIA)

    Data Series: Finished Motor Gasoline Finished Motor Gasoline (less Adj.) Reformulated Gasoline Reformulated Gasoline Blenede w/ Fuel Ethanol Reformulated Other Gasoline Conventional Gasoline Conventional Gasoline Blended w/ Fuel Ethanol Conventional Gasoline Blended w/ Fuel Ethanol, Ed55 & < Conventional Gasoline Blended w/ Fuel Ethanol, > Ed55 Other Conventional Gasoline Finished Motor Gasoline Adjustment Kerosene-Type Jet Fuel Kerosene-Type Jet, Commercial Kerosene-Type Jet, Military

  5. Motor Gasoline Assessment, Spring 1997

    Reports and Publications (EIA)

    1997-01-01

    Analyzes the factors causing the run up of motor gasoline prices during spring 1996 and the different market conditions during spring 1997 that caused prices to decline.

  6. Mission Motors | Open Energy Information

    Open Energy Info (EERE)

    External resources Los Angeles Times Auto Blog Autobloggreen Treehugger.com Autopia (Wired) References "Mission Motors: Contact" Retrieved from "http:en.openei.orgw...

  7. How to Build a Motor

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Motor Sign In About | Careers | Contact | Investors | bpa.gov Search News & Us Expand News & Us Projects & Initiatives Expand Projects & Initiatives Finance & Rates Expand...

  8. Die Casting Copper Motor Rotors

    Broader source: Energy.gov [DOE]

    Though it conducts electricity less efficiently than copper, aluminum is the industry’s preferred fabrication material in electric induction motor rotors. Traditional tool steel casting molds...

  9. Band gap estimation from temperature dependent Seebeck measurement—Deviations from the 2e|S|{sub max}T{sub max} relation

    SciTech Connect (OSTI)

    Gibbs, Zachary M.; Kim, Hyun-Sik; Wang, Heng; Snyder, G. Jeffrey

    2015-01-12

    In characterizing thermoelectric materials, electrical and thermal transport measurements are often used to estimate electronic band structure properties such as the effective mass and band gap. The Goldsmid-Sharp band gap, E{sub g}?=?2e|S|{sub max}T{sub max}, is a tool widely employed to estimate the band gap from temperature dependent Seebeck coefficient measurements. However, significant deviations of more than a factor of two are now known to occur. We find that this is when either the majority-to-minority weighted mobility ratio (A) becomes very different from 1.0 or as the band gap (E{sub g}) becomes significantly smaller than 10 k{sub B}T. For narrow gaps (E{sub g}???6 k{sub B}T), the Maxwell-Boltzmann statistics applied by Goldsmid-Sharp break down and Fermi-Dirac statistics are required. We generate a chart that can be used to quickly estimate the expected correction to the Goldsmid-Sharp band gap depending on A and S{sub max}; however, additional errors can occur for S?

  10. Max Tech Appliance Design: Potential for Maximizing U.S. Energy Savings through Standards

    SciTech Connect (OSTI)

    Garbesi, Karina; Desroches, Louis-Benoit; Bolduc, Christopher; Burch, Gabriel; Hosseinzadeh, Griffin; Saltiel, Seth

    2011-05-06

    This study surveyed the technical potential for efficiency improvements in 150 categories of appliances and equipment representing 33 quads of primary energy use across the US economy in 2010 and (1) documented efficient product designs, (2) identified the most promising cross-cutting strategies, and (3) ranked national energy savings potential by end use. Savings were estimated using a method modeled after US Department of Energy priority-setting reports - simplified versions of the full technical and economic analyses performed for rulemakings. This study demonstrates that large savings are possible by replacing products at the end-of-life with ultra-efficient models that use existing technology. Replacing the 50 top energy-saving end-uses (constituting 30 quads of primary energy consumption in 2010) with today's best-on-market equivalents would save {approx}200 quads of US primary energy over 30 years (25% of consumption anticipated there from). For the 29 products for maximum feasible savings potential could be estimated, the savings were twice as high. These results demonstrate that pushing ultra-efficient products to market could significantly escalate carbon emission reductions and is a viable strategy for sustaining large emissions reductions through standards. The results of this analysis were used by DOE for new coverage prioritization, to identify key opportunities for product prototyping and market development, and will leverage future standards rulemakings by identifying the full scope of maximum feasible technology options. High leverage products include advances lighting systems, HVAC, and televisions. High leverage technologies include electronic lighting, heat pumps, variable speed motors, and a host of controls-related technologies.

  11. Continuous Energy Improvement in Motor Driven Systems - A Guidebook...

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

    This guidebook provides a step-by-step approach to developing a motor system ... The publication is designed to complement DOE's MotorMaster+ motor selection and motor ...

  12. Claire E. Max, 2004 | U.S. DOE Office of Science (SC)

    Office of Science (SC) Website

    Claire E. Max, 2004 The Ernest Orlando Lawrence Award Lawrence Award Home Nomination & Selection Guidelines Award Laureates 2010's 2000's 1990's 1980's 1970's 1960's Ceremony The Life of Ernest Orlando Lawrence Contact Information The Ernest Orlando Lawrence Award U.S. Department of Energy SC-2/Germantown Building 1000 Independence Ave., SW Washington, DC 20585 P: (301) 903-2411 E: Email Us 2000's Claire E. Max, 2004 Print Text Size: A A A FeedbackShare Page Physics: For her contributions to

  13. Real Time Flux Control in PM Motors

    SciTech Connect (OSTI)

    Otaduy, P.J.

    2005-09-27

    Significant research at the Oak Ridge National Laboratory (ORNL) Power Electronics and Electric Machinery Research Center (PEEMRC) is being conducted to develop ways to increase (1) torque, (2) speed range, and (3) efficiency of traction electric motors for hybrid electric vehicles (HEV) within existing current and voltage bounds. Current is limited by the inverter semiconductor devices' capability and voltage is limited by the stator wire insulation's ability to withstand the maximum back-electromotive force (emf), which occurs at the upper end of the speed range. One research track has been to explore ways to control the path and magnitude of magnetic flux while the motor is operating. The phrase, real time flux control (RTFC), refers to this mode of operation in which system parameters are changed while the motor is operating to improve its performance and speed range. RTFC has potential to meet an increased torque demand by introducing additional flux through the main air gap from an external source. It can augment the speed range by diverting flux away from the main air gap to reduce back-emf at high speeds. Conventional RTFC technology is known as vector control [1]. Vector control decomposes the stator current into two components; one that produces torque and a second that opposes (weakens) the magnetic field generated by the rotor, thereby requiring more overall stator current and reducing the efficiency. Efficiency can be improved by selecting a RTFC method that reduces the back-emf without increasing the average current. This favors methods that use pulse currents or very low currents to achieve field weakening. Foremost in ORNL's effort to develop flux control is the work of J. S. Hsu. Early research [2,3] introduced direct control of air-gap flux in permanent magnet (PM) machines and demonstrated it with a flux-controlled generator. The configuration eliminates the problem of demagnetization because it diverts all the flux from the magnets instead of trying to oppose it. It is robust and could be particularly useful for PM generators and electric vehicle drives. Recent efforts have introduced a brushless machine that transfers a magneto-motive force (MMF) generated by a stationary excitation coil to the rotor [4]. Although a conventional PM machine may be field weakened using vector control, the air-gap flux density cannot be effectively enhanced. In Hsu's new machine, the magnetic field generated by the rotor's PM may be augmented by the field from the stationery excitation coil and channeled with flux guides to its desired destination to enhance the air-gap flux that produces torque. The magnetic field can also be weakened by reversing the current in the stationary excitation winding. A patent for advanced technology in this area is pending. Several additional RTFC methods have been discussed in open literature. These include methods of changing the number of poles by magnetizing and demagnetizing the magnets poles with pulses of current corresponding to direct-axis (d-axis) current of vector control [5,6], changing the number of stator coils [7], and controlling the air gap [8]. Test experience has shown that the magnet strengths may vary and weaken naturally as rotor temperature increases suggesting that careful control of the rotor temperature, which is no easy task, could yield another method of RTFC. The purpose of this report is to (1) examine the interaction of rotor and stator flux with regard to RTFC, (2) review and summarize the status of RTFC technology, and (3) compare and evaluate methods for RTFC with respect to maturity, advantages and limitations, deployment difficulty and relative complexity.

  14. Alternative Motor Fuel Use Model

    Energy Science and Technology Software Center (OSTI)

    1992-11-16

    AMFU is a tool for the analysis and prediction of motor fuel use by highway vehicles. The model advances the art of vehicle stock modeling by including a representation of the choice of motor fuel for flexible and dual fuel vehicles.

  15. EcoMotors | Open Energy Information

    Open Energy Info (EERE)

    search Name: EcoMotors Place: California Zip: 94952 Product: EcoMotors is a family-controlled developer of green cars, Diesels and Hybrids. References: EcoMotors1 This...

  16. MotorMaster+ Tool | Department of Energy

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

    Tool Suite. PDF icon MotorMaster+ Tool Presentation (March 19, 2009) More Documents & Publications AMO Software Tools MotorMaster+ User Manual MotorMaster+ Software Tool Brochure...

  17. Piezoelectric wave motor

    DOE Patents [OSTI]

    Yerganian, Simon Scott

    2003-02-11

    A piezoelectric motor having a stator in which piezoelectric elements are contained in slots formed in the stator transverse to the desired wave motion. When an electric field is imposed on the elements, deformation of the elements imposes a force perpendicular to the sides of the slot, deforming the stator. Appropriate frequency and phase-shifting of the electric field will produce a wave in the stator and motion in a rotor. In a preferred aspect, the piezoelectric elements are configured so that deformation of the elements in the direction of an imposed electric field, generally referred to as the d.sub.33 direction, is utilized to produce wave motion in the stator. In a further aspect, the elements are compressed into the slots so as to minimize tensile stresses on the elements in use.

  18. Piezoelectric wave motor

    DOE Patents [OSTI]

    Yerganian, Simon Scott

    2001-07-17

    A piezoelectric motor having a stator in which piezoelectric elements are contained in slots formed in the stator transverse to the desired wave motion. When an electric field is imposed on the elements, deformation of the elements imposes a force perpendicular to the sides of the slot, deforming the stator. Appropriate frequency and phase shifting of the electric field will produce a wave in the stator and motion in a rotor. In a preferred aspect, the piezoelectric elements are configured so that deformation of the elements in direction of an imposed electric field, generally referred to as the d.sub.33 direction, is utilized to produce wave motion in the stator. In a further aspect, the elements are compressed into the slots so as to minimize tensile stresses on the elements in use.

  19. NREL: Transportation Research - Electric Motor Thermal Management

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Electric Motor Thermal Management A photo of a piece of laboratory testing equipment. NREL research in electric motors is helping to improve the performance and reliability of electric-drive vehicles. Photo by Kevin Bennion, NREL NREL's electric motor thermal management research generates experimental data and simulation processes for the modeling, analysis, design, and construction of new electric motors. Electric motor thermal management involves a multifaceted interaction of motor operating

  20. Michigan: General Motors Optimizes Engine Valve Technology |...

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

    Michigan: General Motors Optimizes Engine Valve Technology Michigan: General Motors Optimizes Engine Valve Technology November 8, 2013 - 12:00am Addthis An EERE-supported effort to ...

  1. Turn Motors Off When Not in Use

    SciTech Connect (OSTI)

    Not Available

    2008-07-01

    This is one in a series of tip sheets to help manufacturers optimize their industrial motor and motor-driven systems.

  2. Renault Samsung Motors | Open Energy Information

    Open Energy Info (EERE)

    Renault Samsung Motors Jump to: navigation, search Name: Renault Samsung Motors Place: Korea (Republic) Sector: Solar Product: Korea-based automobile manufacturer. The firm is also...

  3. MotorMaster+ International | Department of Energy

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

    of Electrical and Electronic Engineers(IEEE) standard, and 50 Hz motors manufactured ... IEC metric motors with efficiency values taken in accordance with the IEEE test protocol. ...

  4. Extend the Operating Life of Your Motor

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

    In such cases, motor life can be extended by purchasing special motors, such as those conforming to the Institute of Electrical and Electronics Engineers (IEEE) 841 specifcations, ...

  5. Trexa Motor Corporation TMC | Open Energy Information

    Open Energy Info (EERE)

    Trexa Motor Corporation TMC Jump to: navigation, search Name: Trexa Motor Corporation (TMC) Place: Los Angeles, California Sector: Vehicles Product: Los Angeles - based subsidiary...

  6. Turn Motors Off When Not in Use

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

    Turn Motors Off When Not in Use Motors do not use energy when turned off. Reducing motor operating time by just 10% usually saves more energy than replacing a standard effciency motor with a premium effciency motor. In fact, given that more than 97% 1 of the life cycle cost of purchasing and operating a motor in a typical installation is energy related, turning a motor off 10% of the time could reduce energy costs enough to purchase several new motors. However, a belief persists that stopping

  7. Submersible canned motor transfer pump

    DOE Patents [OSTI]

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

    1997-01-01

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

  8. Submersible canned motor mixer pump

    DOE Patents [OSTI]

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

    1997-10-07

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

  9. Submersible canned motor mixer pump

    DOE Patents [OSTI]

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

    1997-01-01

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

  10. OIT Forest Products Motor Challenge Industry Profile: Motor System...

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

    spends 3.6 billion or about 2.6% of its overall operating costs to operate electric motor systems-higher than any other 2- digit manufacturing SIC. Opportunities to effectively...

  11. State observer for synchronous motors

    DOE Patents [OSTI]

    Lang, Jeffrey H. (Waltham, MA)

    1994-03-22

    A state observer driven by measurements of phase voltages and currents for estimating the angular orientation of a rotor of a synchronous motor such as a variable reluctance motor (VRM). Phase voltages and currents are detected and serve as inputs to a state observer. The state observer includes a mathematical model of the electromechanical operation of the synchronous motor. The characteristics of the state observer are selected so that the observer estimates converge to the actual rotor angular orientation and velocity, winding phase flux linkages or currents.

  12. MotorMaster+ International Fact Sheet | Department of Energy

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

    International Fact Sheet MotorMaster+ International Fact Sheet This fact sheet describes how industrial plants can improve their motor system performance for a broader range of motors with AMO's MotorMaster+ International software tool. PDF icon MotorMaster+ International Fact Sheet More Documents & Publications MotorMaster+ Software Tool Brochure MotorMaster+ Fact Sheet MotorMaster+ Tool

  13. Turn Motors Off When Not in Use - Motor Tip Sheet #10

    SciTech Connect (OSTI)

    2008-07-01

    Motors use no energy when turned off. Reducing motor operating time by just 10% usually saves more energy than replacing a standard efficiency motor with a NEMA Premium® efficiency motor. In fact, given that 97% of the life cycle cost of purchasing and operating a motor is energy-related, turning a motor off 10% of the time could reduce energy costs enough to purchase three new motors.

  14. Tesla Motors | Open Energy Information

    Open Energy Info (EERE)

    to hold an initial public offering soon.2 References Tesla Motors http:www.reuters.comarticleGCA-GreenBusinessidUSTRE5AJ41M20091120?rpc64&sptrue Retrieved from...

  15. Segmented rail linear induction motor

    DOE Patents [OSTI]

    Cowan, M. Jr.; Marder, B.M.

    1996-09-03

    A segmented rail linear induction motor has a segmented rail consisting of a plurality of nonferrous electrically conductive segments aligned along a guideway. The motor further includes a carriage including at least one pair of opposed coils fastened to the carriage for moving the carriage. A power source applies an electric current to the coils to induce currents in the conductive surfaces to repel the coils from adjacent edges of the conductive surfaces. 6 figs.

  16. Direct drive field actuator motors

    DOE Patents [OSTI]

    Grahn, Allen R. (Salt Lake City, UT)

    1998-01-01

    A positive-drive field actuator motor including a stator carrying at least one field actuator which changes in dimension responsive to application of an energy field, and at least one drive shoe movable by the dimensional changes of the field actuator to contact and move a rotor element with respect to the stator. Various embodiments of the motor are disclosed, and the rotor element may be moved linearly or arcuately.

  17. Direct drive field actuator motors

    DOE Patents [OSTI]

    Grahn, A.R.

    1998-03-10

    A positive-drive field actuator motor is described which includes a stator carrying at least one field actuator which changes in dimension responsive to application of an energy field, and at least one drive shoe movable by the dimensional changes of the field actuator to contact and move a rotor element with respect to the stator. Various embodiments of the motor are disclosed, and the rotor element may be moved linearly or arcuately. 62 figs.

  18. Segmented rail linear induction motor

    DOE Patents [OSTI]

    Cowan, Jr., Maynard (1107 Stagecoach Rd. SE., Albuquerque, NM 87123); Marder, Barry M. (1412 Pinnacle View Dr. NE., Albuquerque, NM 87123)

    1996-01-01

    A segmented rail linear induction motor has a segmented rail consisting of a plurality of nonferrous electrically conductive segments aligned along a guideway. The motor further includes a carriage including at least one pair of opposed coils fastened to the carriage for moving the carriage. A power source applies an electric current to the coils to induce currents in the conductive surfaces to repel the coils from adjacent edges of the conductive surfaces.

  19. MTBE, Oxygenates, and Motor Gasoline

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    MTBE, Oxygenates, and Motor Gasoline Contents * Introduction * Federal gasoline product quality regulations * What are oxygenates? * Who gets gasoline with oxygenates? * Which areas get MTBE? * How much has been invested in MTBE production capacity? * What does new Ethanol capacity cost? * What would an MTBE ban cost? * On-line information resources * Endnotes * Summary of revisions to this analysis Introduction The blending of methyl tertiary butyl ether (MTBE) into motor gasoline has increased

  20. Electric motor for laser-mechanical drilling

    DOE Patents [OSTI]

    Grubb, Daryl L.; Faircloth, Brian O.; Zediker, Mark S.

    2015-07-07

    A high power laser drilling system utilizing an electric motor laser bottom hole assembly. A high power laser beam travels within the electric motor for advancing a borehole. High power laser drilling system includes a down hole electrical motor having a hollow rotor for conveying a high power laser beam through the electrical motor.

  1. ~max0006

    National Nuclear Security Administration (NNSA)

    MANUAL Approved: 10-1 7-08 NNSA Line Oversight and Contractor Assurance System Supplemental Directive U.S. DEPARTMENT OF ENERGY National Nuclear Security Administration AVAILABLE ONLINE AT: Iink to NNSA Policicsisupplementa1 directives This page is intentionally blank. NNSA LINE OVERSIGHT AND CONTRACTOR ASSUWNCE SYSTEM SUPPLEMENTAL DIRECTIVE 1. PURPOSE. 'The Line Oversight and Contractor Assurance System (1,OCAS) is the National Nuclear Security Administration (NSSA) management system that

  2. Motor Repair Tech Brief | Department of Energy

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

    Repair Tech Brief Motor Repair Tech Brief This Tech Brief answers: Why do motors fail? When should you repair instead of replace? And how can reliability and efficiency be assured in a repair? PDF icon Motor Repair Tech Brief (March 2000) More Documents & Publications Extend the Operating Life of Your Motor Service Center Evaluation Guide Premium Efficiency Motor Selection and Application Guide - A Handbook for Industry

  3. Training: Motor Systems | Department of Energy

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

    Motor Systems Training: Motor Systems April 16, 2014 - 6:33pm Addthis Learn about the diverse training sessions offered. The courses are taught by highly qualified instructors who have met rigorous standards. View additional motor system resources. Motor Systems Management - 1-day workshop Availability: Onsite instructor-led This one-day workshop helps facility personnel-maintenance staff, plant managers, and plant engineers gain an understanding of electric motor systems management and skills

  4. DOE - Office of Legacy Management -- Max Zuckerman and Sons - IL 30

    Office of Legacy Management (LM)

    - IL 30 FUSRAP Considered Sites Site: MAX ZUCKERMAN & SONS (IL.30 ) Eliminated from consideration under FUSRAP Designated Name: Not Designated Alternate Name: None Location: 1925 N. Kenmore Avenue , Chicago , Illinois IL.30-1 Evaluation Year: 1994 IL.30-2 Site Operations: Sample sized quantities of radioactive materials were shipped through this location; broker arranged purchases of materials for third party buyers. IL.30-2 Site Disposition: Eliminated - Potential for contamination

  5. Submersible canned motor transfer pump

    DOE Patents [OSTI]

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

    1997-08-19

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

  6. Improve Motor Operation at Off-Design Voltages - Motor Tip Sheet #9

    SciTech Connect (OSTI)

    2008-07-01

    Motors are designed to operate within +/- 10% of their nameplate rated voltages. When motors operate at conditions of over- or under-voltage, motor efficiency and other performance parameters are degraded.

  7. Three phase AC motor controller

    DOE Patents [OSTI]

    Vuckovich, Michael (Elizabeth, PA); Wright, Maynard K. (Bethel Park, PA); Burkett, John P. (South Huntington Township, Westmoreland County, PA)

    1984-03-20

    A motor controller for a three phase AC motor (10) which is adapted to operate bidirectionally from signals received either from a computer (30) or a manual control (32). The controller is comprised of digital logic circuit means which implement a forward and reverse command signal channel (27, 29) for the application of power through the forward and reverse power switching relays (16, 18, 20, 22). The digital logic elements are cross coupled to prevent activation of both channels simultaneously and each includes a plugging circuit (65, 67) for stopping the motor upon the removal of control signal applied to one of the two channels (27, 29) for a direction of rotation desired. Each plugging circuit (65, 67) includes a one-shot pulse signal generator (88, 102) which outputs a single pulse signal of predetermined pulsewidth which is adapted to inhibit further operation of the application of power in the channel which is being activated and to apply a reversal command signal to the other channel which provides a reversed phase application of power to the motor for a period defined by the pulse-width output of the one-shot signal generator to plug the motor (10) which will then be inoperative until another rotational command signal is applied to either of the two channels.

  8. MotorMaster+ User Manual | Department of Energy

    Office of Environmental Management (EM)

    MotorMaster+ User Manual MotorMaster+ User Manual This user manual is designed to help users understand the MotorMaster+ software tool. PDF icon MotorMaster+ User Manual More Documents & Publications MotorMaster+ International Fact Sheet Replacing an Oversized and Underloaded Electric Motor MotorMaster+ Fact Sheet

  9. Systems and methods for vehicle speed management

    DOE Patents [OSTI]

    Sujan, Vivek Anand; Vajapeyazula, Phani; Follen, Kenneth; Wu, An; Forst, Howard Robert

    2016-03-01

    Controlling a speed of a vehicle based on at least a portion of a route grade and a route distance divided into a plurality of route sections, each including at least one of a section grade and section length. Controlling the speed of the vehicle is further based on determining a cruise control speed mode for the vehicle for each of the plurality of route sections and determining a speed reference command of the vehicle based on at least one of the cruise control speed mode, the section length, the section grade, and a current speed.

  10. Speed control with end cushion for high speed air cylinder

    DOE Patents [OSTI]

    Stevens, Wayne W. (Idaho Falls, ID); Solbrig, Charles W. (Idaho Falls, ID)

    1991-01-01

    A high speed air cylinder in which the longitudinal movement of the piston within the air cylinder tube is controlled by pressurizing the air cylinder tube on the accelerating side of the piston and releasing pressure at a controlled rate on the decelerating side of the piston. The invention also includes a method for determining the pressure required on both the accelerating and decelerating sides of the piston to move the piston with a given load through a predetermined distance at the desired velocity, bringing the piston to rest safely without piston bounce at the end of its complete stroke.

  11. Thermoelectric generator for motor vehicle

    DOE Patents [OSTI]

    Bass, John C. (6121 La Pintra Dr., La Jolla, CA 92037)

    1997-04-29

    A thermoelectric generator for producing electric power for a motor vehicle from the heat of the exhaust gasses produced by the engine of the motor vehicle. The exhaust gasses pass through a finned heat transfer support structure which has seat positions on its outside surface for the positioning of thermoelectric modules. A good contact cylinder provides a framework from which a spring force can be applied to the thermoelectric modules to hold them in good contact on their seats on the surface of the heat transfer support structure.

  12. Phase 1 STTR flywheel motor/alternator for hybrid electric vehicles. CRADA final report

    SciTech Connect (OSTI)

    McKeever, J.W.; Scudiere, M.B.; Ott, G.W. Jr.; White, C.P.; Kessinger, R.L. Jr.; Robinson, S.T.; Seymour, K.P.; Dockstadter, K.D.

    1997-12-31

    Visual Computing Systems (VCS) and the Oak Ridge National Laboratory (ORNL) have teamed, through a Phase 1 Small Business Technology Transfer (STTR) grant from the US Department of Energy (DOE), to develop an advanced, low-cost motor/alternator drive system suitable for Flywheel Energy Storage (FES) applications. During Phase 1, system performance and design requirements were established, design concepts were generated, and preliminary motor/alternator designs were developed and analyzed. ORNL provided mechanical design and finite element collaboration and Lynx Motion Technology, a spin-off from VCS to commercialize their technology, constructed a proof-of-concept axial-gap permanent magnet motor/alternator that employed their Segmented Electromagnetic Array (SEMA) with a survivable design speed potential of 10,000 rpm. The VCS motor/alternator was successfully tested in ORNL`s Motor Test Tank using an ORNL inverter and ORNL control electronics. It was first operated as an unloaded motor to 6,000 rpm and driven as an unloaded generator to 6,000 rpm. Output from the generator was then connected to a resistance bank, which caused the loaded generator to decelerate to 3,860 rpm where data was collected. After about 4-1/2 minutes, the test was terminated because of an impact noise. Subsequent inspection and operation at low speeds did not reveal the source of the noise. Electrical performance of the motor was excellent, encouraging continued development of this technology. Phase 2 efforts will focus on further design development and optimization, manufacturing development and prototype construction, testing, and evaluation.

  13. Honda Motor Co Ltd | Open Energy Information

    Open Energy Info (EERE)

    Motor Co Ltd Jump to: navigation, search Name: Honda Motor Co Ltd Place: Tokyo, Tokyo, Japan Zip: 107-8556 Sector: Vehicles Product: Leading global car manufacturer which began...

  14. Max Tech and Beyond: High-Intensity Discharge Lamps (Technical Report) |

    Office of Scientific and Technical Information (OSTI)

    SciTech Connect High-Intensity Discharge Lamps Citation Details In-Document Search Title: Max Tech and Beyond: High-Intensity Discharge Lamps High-intensity discharge (HID) lamps are most often found in industrial and commercial applications, and are the light source of choice in street and area lighting, and sports stadium illumination. HID lamps are produced in three types - mercury vapor (MV), high pressure sodium (HPS) and metal halide (MH). Of these, MV and MH are considered white-light

  15. Max Tech and Beyond: Maximizing Appliance and Equipment Efficiency by Design

    SciTech Connect (OSTI)

    Desroches, Louis-Benoit; Garbesi, Karina

    2011-07-20

    It is well established that energy efficiency is most often the lowest cost approach to reducing national energy use and minimizing carbon emissions. National investments in energy efficiency to date have been highly cost-effective. The cumulative impacts (out to 2050) of residential energy efficiency standards are expected to have a benefit-to-cost ratio of 2.71:1. This project examined energy end-uses in the residential, commercial, and in some cases the industrial sectors. The scope is limited to appliances and equipment, and does not include building materials, building envelopes, and system designs. This scope is consistent with the scope of DOE's appliance standards program, although many products considered here are not currently subject to energy efficiency standards. How much energy could the United States save if the most efficient design options currently feasible were adopted universally? What design features could produce those savings? How would the savings from various technologies compare? With an eye toward identifying promising candidates and strategies for potential energy efficiency standards, the Max Tech and Beyond project aims to answer these questions. The analysis attempts to consolidate, in one document, the energy savings potential and design characteristics of best-on-market products, best-engineered products (i.e., hypothetical products produced using best-on-market components and technologies), and emerging technologies in research & development. As defined here, emerging technologies are fundamentally new and are as yet unproven in the market, although laboratory studies and/or emerging niche applications offer persuasive evidence of major energy-savings potential. The term 'max tech' is used to describe both best-engineered and emerging technologies (whichever appears to offer larger savings). Few best-on-market products currently qualify as max tech, since few apply all available best practices and components. The three primary analyses presented in this report are: Nevertheless, it is important to analyze best-on-market products, since data on truly max tech technologies are limited. (1) an analysis of the cross-cutting strategies most promising for reducing appliance and equipment energy use in the U.S.; (2) a macro-analysis of the U.S. energy-saving potential inherent in promising ultra-efficient appliance technologies; and (3) a product-level analysis of the energy-saving potential.

  16. DOE - Office of Legacy Management -- Max Zuckerman and Sons Inc - MD 04

    Office of Legacy Management (LM)

    Inc - MD 04 FUSRAP Considered Sites Site: MAX ZUCKERMAN & SONS, INC. (MD.04 ) Eliminated from consideration under FUSRAP Designated Name: Not Designated Alternate Name: Maryland Alloys Corporation MD.04-1 Location: 5245 Fairlawn Avenue , Baltimore , Maryland MD.04-2 Evaluation Year: 1994 MD.04-1 MD.04-3 Site Operations: Scrap metals broker that arranged purchases of materials for third party buyers. MD.04-2 MD.04-4 Site Disposition: Eliminated - Potential for contamination remote MD.04-3

  17. Frequency modulation drive for a piezoelectric motor

    DOE Patents [OSTI]

    Mittas, Anthony

    2001-01-01

    A piezoelectric motor has peak performance at a specific frequency f.sub.1 that may vary over a range of frequencies. A drive system is disclosed for operating such a motor at peak performance without feedback. The drive system consists of the motor and an ac source connected to power the motor, the ac source repeatedly generating a frequency over a range from f.sub.1 -.DELTA.x to f.sub.1 +.DELTA.y.

  18. Selected Bibliography on Electric Motor Repair

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

    Selected Bibliography on Electric Motor Repair Acknowledgements The following series of Repair Documents-The Service Center Evaluation Guide, Selected Bibliography on Electric Motor Repair, Model Repair Specifications for Low Voltage Motors, and Motor Repair Tech Brief- were produced by the U.S. Department of Energy's Office of Industrial Technologies (OIT) with input from trade associations, consulting companies, manufacturers, non-profit corporations, and others. OIT would like to thank the

  19. Motorized control for mirror mount apparatus

    DOE Patents [OSTI]

    Cutburth, Ronald W. (Tracy, CA)

    1989-01-01

    A motorized control and automatic braking system for adjusting mirror mount apparatus is disclosed. The motor control includes a planetary gear arrangement to provide improved pitch adjustment capability while permitting a small packaged design. The motor control for mirror mount adjustment is suitable for laser beam propagation applications. The brake is a system of constant contact, floating detents which engage the planetary gear at selected between-teeth increments to stop rotation instantaneously when the drive motor stops.

  20. Determining Electric Motor Load and Efficiency

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

    DETERMINING ELECTRIC MOTOR LOAD AND EFFICIENCY Most likely your operation's motors account for a large part of your monthly electric bill. Far too often motors are mismatched-or oversized-for the load they are intended to serve, or have been re- wound multiple times. To compare the operating costs of an existing standard motor with an appropriately-sized energy- efficient replacement, you need to determine operating hours, efficiency improvement values, and load. Part-load is a term used to

  1. Energy Management for Motor-Driven Systems

    Broader source: Energy.gov [DOE]

    This document assists in establishing an energy management plan, identifying energy savings opportunities, and designing a motor improvement plan.

  2. Contol of Surface Mounted Permanent Magnet Motors with Special Application to Motors with Fractional-Slot Concentrated Windings

    SciTech Connect (OSTI)

    Patil, N.; Lawler, J.S.; McKeever, J.

    2007-07-31

    A 30-pole, 6-kW prototype of a fractional-slot permanent magnet synchronous motor (PMSM) design has been developed to operate at a maximum speed of 6000 rpm [1,2]. This machine has significantly more inductance than regular PMSMs with distributed windings. The prototype was delivered in April 2006 to the Oak Ridge National Laboratory (ORNL) for testing and development of a suitable controller. To prepare for this test/control development effort, ORNL used PMSM models developed over a number of previous studies to preview the control issues that arise when a dynamic controller drives a high inductance PMSM machine during steady state performance evaluations. The detailed steady state model developed includes all motor and inverter loss mechanisms and was useful for assessing the performance of the dynamic controller before it was put into operation. This report documents the results of tests demonstrating the effectiveness of ORNL's simple low-cost control scheme during characterization of the fractional-slot concentrated windings (FSCW) PMSM motor. The control scheme is simple because only the supply voltage magnitude and the phase angle between the back-electromotive force (emf) and the supply voltage is controlled. It is low-cost because it requires no current or phase voltage sensors.

  3. Electric Motor Thermal Management | Department of Energy

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

    2 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting PDF icon ape030_bennion_2012_o.pdf More Documents & Publications Electric Motor Thermal Management Electric Motor Thermal Management Vehicle Technologies Office Merit Review 2015: Electric Motor Thermal Management R&D

  4. Electric Motor Thermal Management | Department of Energy

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

    1 DOE Hydrogen and Fuel Cells Program, and Vehicle Technologies Program Annual Merit Review and Peer Evaluation PDF icon ape030_bennion_2011_o.pdf More Documents & Publications Motor Thermal Control Electric Motor Thermal Management Electric Motor Thermal Management

  5. Max Phase Materials And Coatings For High Temperature Heat Transfer Applications

    SciTech Connect (OSTI)

    Martinez-Rodriguez, M.; Garcia-Diaz, B.; Olson, L.; Fuentes, R.; Sindelar, R.

    2015-10-19

    Molten salts have been used as heat transfer fluids in a variety of applications within proposed Gen IV nuclear designs and in advanced power system such as Concentrating Solar Power (CSP). However, operating at elevated temperatures can cause corrosion in many materials. This work developed coating technologies for MAX phase materials on Haynes-230 and characterized the corrosion of the coatings in the presence of commercial MgCl2-KCl molten salt. Cold spraying of Ti2AlC and physical vapor deposition (PVD) of Ti2AlC or Zr2AlC were tested to determine the most effective form of coating MAX phases on structural substrates. Corrosion testing at 850°C for 100 hrs showed that 3.9 ?m Ti2AlC by PVD was slightly protective while 117 ?m Ti2AlC by cold spray and 3.6 ?m Zr2AlC by PVD were completely protective. None of the tests showed decomposition of the coating (Ti or Zr) into the salt

  6. Study of the Advantages of Internal Permanent Magnet Drive Motor with Selectable Windings for Hybrid-Electric Vehicles

    SciTech Connect (OSTI)

    Otaduy, P.J.; Hsu, J.S.; Adams, D.J.

    2007-11-30

    This report describes research performed on the viability of changing the effectively active number of turns in the stator windings of an internal permanent magnet (IPM) electric motor to strengthen or weaken the magnetic fields in order to optimize the motor's performance at specific operating speeds and loads. Analytical and simulation studies have been complemented with research on switching mechanisms to accomplish the task. The simulation studies conducted examine the power and energy demands on a vehicle following a series of standard driving cycles and the impact on the efficiency and battery size of an electrically propelled vehicle when it uses an IPM motor with turn-switching capabilities. Both full driving cycle electric propulsion and propulsion limited starting from zero to a set speed have been investigated.

  7. High speed sampler and demultiplexer

    DOE Patents [OSTI]

    McEwan, Thomas E. (Livermore, CA)

    1995-01-01

    A high speed sampling demultiplexer based on a plurality of sampler banks, each bank comprising a sample transmission line for transmitting an input signal, a strobe transmission line for transmitting a strobe signal, and a plurality of sampling gates at respective positions along the sample transmission line for sampling the input signal in response to the strobe signal. Strobe control circuitry is coupled to the plurality of banks, and supplies a sequence of bank strobe signals to the strobe transmission lines in each of the plurality of banks, and includes circuits for controlling the timing of the bank strobe signals among the banks of samplers. Input circuitry is included for supplying the input signal to be sampled to the plurality of sample transmission lines in the respective banks. The strobe control circuitry can repetitively strobe the plurality of banks of samplers such that the banks of samplers are cycled to create a long sample length. Second tier demultiplexing circuitry is coupled to each of the samplers in the plurality of banks. The second tier demultiplexing circuitry senses the sample taken by the corresponding sampler each time the bank in which the sampler is found is strobed. A plurality of such samples can be stored by the second tier demultiplexing circuitry for later processing. Repetitive sampling with the high speed transient sampler induces an effect known as "strobe kickout". The sample transmission lines include structures which reduce strobe kickout to acceptable levels, generally 60 dB below the signal, by absorbing the kickout pulses before the next sampling repetition.

  8. High speed sampler and demultiplexer

    DOE Patents [OSTI]

    McEwan, T.E.

    1995-12-26

    A high speed sampling demultiplexer based on a plurality of sampler banks, each bank comprising a sample transmission line for transmitting an input signal, a strobe transmission line for transmitting a strobe signal, and a plurality of sampling gates at respective positions along the sample transmission line for sampling the input signal in response to the strobe signal. Strobe control circuitry is coupled to the plurality of banks, and supplies a sequence of bank strobe signals to the strobe transmission lines in each of the plurality of banks, and includes circuits for controlling the timing of the bank strobe signals among the banks of samplers. Input circuitry is included for supplying the input signal to be sampled to the plurality of sample transmission lines in the respective banks. The strobe control circuitry can repetitively strobe the plurality of banks of samplers such that the banks of samplers are cycled to create a long sample length. Second tier demultiplexing circuitry is coupled to each of the samplers in the plurality of banks. The second tier demultiplexing circuitry senses the sample taken by the corresponding sampler each time the bank in which the sampler is found is strobed. A plurality of such samples can be stored by the second tier demultiplexing circuitry for later processing. Repetitive sampling with the high speed transient sampler induces an effect known as ``strobe kickout``. The sample transmission lines include structures which reduce strobe kickout to acceptable levels, generally 60 dB below the signal, by absorbing the kickout pulses before the next sampling repetition. 16 figs.

  9. Online Monitoring of Induction Motors

    SciTech Connect (OSTI)

    McJunkin, Timothy R.; Agarwal, Vivek; Lybeck, Nancy Jean

    2016-01-01

    The online monitoring of active components project, under the Advanced Instrumentation, Information, and Control Technologies Pathway of the Light Water Reactor Sustainability Program, researched diagnostic and prognostic models for alternating current induction motors (IM). Idaho National Laboratory (INL) worked with the Electric Power Research Institute (EPRI) to augment and revise the fault signatures previously implemented in the Asset Fault Signature Database of EPRI’s Fleet Wide Prognostic and Health Management (FW PHM) Suite software. Induction Motor diagnostic models were researched using the experimental data collected by Idaho State University. Prognostic models were explored in the set of literature and through a limited experiment with 40HP to seek the Remaining Useful Life Database of the FW PHM Suite.

  10. Reduced vibration motor winding arrangement

    DOE Patents [OSTI]

    Slavik, Charles J. (Rexford, NY); Rhudy, Ralph G. (Scotia, NY); Bushman, Ralph E. (Lathem, NY)

    1997-01-01

    An individual phase winding arrangement having a sixty electrical degree phase belt width for use with a three phase motor armature includes a delta connected phase winding portion and a wye connected phase winding portion. Both the delta and wye connected phase winding portions have a thirty electrical degree phase belt width. The delta and wye connected phase winding portions are each formed from a preselected number of individual coils each formed, in turn, from an unequal number of electrical conductor turns in the approximate ratio of .sqroot.3. The individual coils of the delta and wye connected phase winding portions may either be connected in series or parallel. This arrangement provides an armature winding for a three phase motor which retains the benefits of the widely known and utilized thirty degree phase belt concept, including improved mmf waveform and fundamental distribution factor, with consequent reduced vibrations and improved efficiency.

  11. Reduced vibration motor winding arrangement

    DOE Patents [OSTI]

    Slavik, C.J.; Rhudy, R.G.; Bushman, R.E.

    1997-11-11

    An individual phase winding arrangement having a sixty electrical degree phase belt width for use with a three phase motor armature includes a delta connected phase winding portion and a wye connected phase winding portion. Both the delta and wye connected phase winding portions have a thirty electrical degree phase belt width. The delta and wye connected phase winding portions are each formed from a preselected number of individual coils each formed, in turn, from an unequal number of electrical conductor turns in the approximate ratio of {radical}3. The individual coils of the delta and wye connected phase winding portions may either be connected in series or parallel. This arrangement provides an armature winding for a three phase motor which retains the benefits of the widely known and utilized thirty degree phase belt concept, including improved mmf waveform and fundamental distribution factor, with consequent reduced vibrations and improved efficiency. 4 figs.

  12. Hermetically sealed superconducting magnet motor

    DOE Patents [OSTI]

    DeVault, Robert C. (Knoxville, TN); McConnell, Benjamin W. (Knoxville, TN); Phillips, Benjamin A. (Benton Harbor, MI)

    1996-01-01

    A hermetically sealed superconducting magnet motor includes a rotor separated from a stator by either a radial gap, an axial gap, or a combined axial and radial gap. Dual conically shaped stators are used in one embodiment to levitate a disc-shaped rotor made of superconducting material within a conduit for moving cryogenic fluid. As the rotor is caused to rotate when the field stator is energized, the fluid is pumped through the conduit.

  13. Electrostatic generator/motor configurations

    DOE Patents [OSTI]

    Post, Richard F

    2014-02-04

    Electrostatic generators/motors designs are provided that generally may include a first cylindrical stator centered about a longitudinal axis; a second cylindrical stator centered about the axis, a first cylindrical rotor centered about the axis and located between the first cylindrical stator and the second cylindrical stator. The first cylindrical stator, the second cylindrical stator and the first cylindrical rotor may be concentrically aligned. A magnetic field having field lines about parallel with the longitudinal axis is provided.

  14. Hermetically sealed superconducting magnet motor

    DOE Patents [OSTI]

    DeVault, R.C.; McConnell, B.W.; Phillips, B.A.

    1996-07-02

    A hermetically sealed superconducting magnet motor includes a rotor separated from a stator by either a radial gap, an axial gap, or a combined axial and radial gap. Dual conically shaped stators are used in one embodiment to levitate a disc-shaped rotor made of superconducting material within a conduit for moving cryogenic fluid. As the rotor is caused to rotate when the field stator is energized, the fluid is pumped through the conduit. 6 figs.

  15. Fractional-Slot Surface Mounted PM Motors with Concentrated Windings for HEV Traction Drives

    SciTech Connect (OSTI)

    Bailey, J.M.

    2005-10-24

    High-power density and efficiency resulting from elimination of rotor windings and reduced magnetic-flux losses have made the rare earth permanent magnet (PM) motor a leading candidate for the Department of Energy's Office of FreedomCAR and Vehicle Technologies (FCVTs) traction drive motor. These traction drives are generally powered by radial-gap motors, having the magnets on or embedded in a rotating cylinder separated from the inside surface of a slotted cylindrical stator by an annular gap. The two main types of radial-gap PM rotors are those with magnets mounted on the surface of a supporting back iron, called PM surface mounted (PMSM) motors, and those with magnets mounted in slots in the rotor, called interior PM (IPM) motors. Most early PM motor research was on the PMSM motor, which was thought to have an inherently low stator inductance. A low stator inductance can lead to currents dangerously exceeding rated current as the back-emf across the inductance increases with speed; consequently, part of the attempted solution has been to increase the stator inductance to reduce the rate of current rise. Although analysis suggested that there should be no problem designing sufficiently high stator inductance into PMSMs, attempts to do so were often not successful and a motor design was sought that would have a higher intrinsic inductance. Commercial research at Toyota has focused on IPM motors because they can achieve a high-saliency ratio, which helps them operate over a high constant power speed ratio (CPSR), but they are more difficult to fabricate. The Oak Ridge National Laboratory's (ORNL) position has been to continue research on brushless direct current (dc) motors (BDCMs) because of ease of fabrication and increased power output. Recently there has been a revival of interest in a fractional-slot PMSMs [15] made with concentrated windings because they possess three important features. First, they can increase the motor's inductance sufficiently to reduce the characteristic current to value of the rated current, which will enable them to operate at high CPSR. This feature also limits short-circuit fault currents. Second, their segmented structure simplifies assembly problems and is expected to reduce assembly costs. Third, the back-emf waveform is nearly sinusoidal with low cogging. To examine in depth this design ORNL entered into a collaborative agreement with the University of Wisconsin to build and test a 6 kW laboratory demonstration unit. Design, fabrication, and testing of the unit to 4000 rpm were completed during FY 2005. The motor will be sent to ORNL to explore ways to control its inverter to achieve higher efficiency during FY 2006. This paper first reviews the concept of characteristic current and what is meant by optimal flux weakening. It then discusses application of the fractional-slot concentrated winding technique to increase the d-axis inductance of a PMSM showing how this approach differs from an integral-slot motor with sinusoidal-distributed windings. This discussion is followed by a presentation of collaborative analyses and comparison with the University of Wisconsin's measured data on a 6 kW, 36-slot, 30-pole motor with concentrated windings. Finally ORNL presents a PMSM design with integral-slot windings that appears to meet the FreedomCAR Specifications, but has some disadvantages. Further collaboration with the University of Wisconsin is planned for FY 2006 to design a motor that meets FreedomCAR specifications.

  16. Turn Motors Off When Not in Use | Department of Energy

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

    Turn Motors Off When Not in Use Turn Motors Off When Not in Use Motors do not use energy when turned off. Reducing motor operating time by just 10% usually saves more energy than replacing a standard efficiency motor with a premium efficiency motor. This tip sheet discusses pros and cons of repeated motor starts and stops and provides suggested actions. Motor Systems Tip Sheet #10 PDF icon Turn Motors Off When Not in Use (November 2012) More Documents & Publications Improving Motor and Drive

  17. Active control system for high speed windmills

    DOE Patents [OSTI]

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

    1988-01-01

    A pump stroke is matched to the operating speed of a high speed windmill. The windmill drives a hydraulic pump for a control. Changes in speed of a wind driven shaft open supply and exhaust valves to opposite ends of a hydraulic actuator to lengthen and shorten an oscillating arm thereby lengthening and shortening the stroke of an output pump. Diminishing wind to a stall speed causes the valves to operate the hydraulic cylinder to shorten the oscillating arm to zero. A pressure accumulator in the hydraulic system provides the force necessary to supply the hydraulic fluid under pressure to drive the actuator into and out of the zero position in response to the windmill shaft speed approaching and exceeding windmill stall speed.

  18. Active control system for high speed windmills

    DOE Patents [OSTI]

    Avery, D.E.

    1988-01-12

    A pump stroke is matched to the operating speed of a high speed windmill. The windmill drives a hydraulic pump for a control. Changes in speed of a wind driven shaft open supply and exhaust valves to opposite ends of a hydraulic actuator to lengthen and shorten an oscillating arm thereby lengthening and shortening the stroke of an output pump. Diminishing wind to a stall speed causes the valves to operate the hydraulic cylinder to shorten the oscillating arm to zero. A pressure accumulator in the hydraulic system provides the force necessary to supply the hydraulic fluid under pressure to drive the actuator into and out of the zero position in response to the windmill shaft speed approaching and exceeding windmill stall speed. 4 figs.

  19. ClearSpeed presentation circa March 2007

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    clearspeed.com Copyright © 2007 ClearSpeed Technology Inc. All rights reserved. 1 64-Bit Floating-Point Accelerators for HPC Applications John L. Gustafson, Ph.D. Chief Technology Officer, HPC ClearSpeed Technology, Inc. www.clearspeed.com Copyright © 2007 ClearSpeed Technology Inc. All rights reserved. 2 Outline * Acceleration issues in general: host-accelerator bandwidth/latency * Accelerator performance analysis examples * Measured and expected application acceleration: - Molecular

  20. System, apparatus and methods to implement high-speed network analyzers

    DOE Patents [OSTI]

    Ezick, James; Lethin, Richard; Ros-Giralt, Jordi; Szilagyi, Peter; Wohlford, David E

    2015-11-10

    Systems, apparatus and methods for the implementation of high-speed network analyzers are provided. A set of high-level specifications is used to define the behavior of the network analyzer emitted by a compiler. An optimized inline workflow to process regular expressions is presented without sacrificing the semantic capabilities of the processing engine. An optimized packet dispatcher implements a subset of the functions implemented by the network analyzer, providing a fast and slow path workflow used to accelerate specific processing units. Such dispatcher facility can also be used as a cache of policies, wherein if a policy is found, then packet manipulations associated with the policy can be quickly performed. An optimized method of generating DFA specifications for network signatures is also presented. The method accepts several optimization criteria, such as min-max allocations or optimal allocations based on the probability of occurrence of each signature input bit.

  1. High speed imager test station

    DOE Patents [OSTI]

    Yates, George J.; Albright, Kevin L.; Turko, Bojan T.

    1995-01-01

    A test station enables the performance of a solid state imager (herein called a focal plane array or FPA) to be determined at high image frame rates. A programmable waveform generator is adapted to generate clock pulses at determinable rates for clock light-induced charges from a FPA. The FPA is mounted on an imager header board for placing the imager in operable proximity to level shifters for receiving the clock pulses and outputting pulses effective to clock charge from the pixels forming the FPA. Each of the clock level shifters is driven by leading and trailing edge portions of the clock pulses to reduce power dissipation in the FPA. Analog circuits receive output charge pulses clocked from the FPA pixels. The analog circuits condition the charge pulses to cancel noise in the pulses and to determine and hold a peak value of the charge for digitizing. A high speed digitizer receives the peak signal value and outputs a digital representation of each one of the charge pulses. A video system then displays an image associated with the digital representation of the output charge pulses clocked from the FPA. In one embodiment, the FPA image is formatted to a standard video format for display on conventional video equipment.

  2. High speed imager test station

    DOE Patents [OSTI]

    Yates, G.J.; Albright, K.L.; Turko, B.T.

    1995-11-14

    A test station enables the performance of a solid state imager (herein called a focal plane array or FPA) to be determined at high image frame rates. A programmable waveform generator is adapted to generate clock pulses at determinable rates for clock light-induced charges from a FPA. The FPA is mounted on an imager header board for placing the imager in operable proximity to level shifters for receiving the clock pulses and outputting pulses effective to clock charge from the pixels forming the FPA. Each of the clock level shifters is driven by leading and trailing edge portions of the clock pulses to reduce power dissipation in the FPA. Analog circuits receive output charge pulses clocked from the FPA pixels. The analog circuits condition the charge pulses to cancel noise in the pulses and to determine and hold a peak value of the charge for digitizing. A high speed digitizer receives the peak signal value and outputs a digital representation of each one of the charge pulses. A video system then displays an image associated with the digital representation of the output charge pulses clocked from the FPA. In one embodiment, the FPA image is formatted to a standard video format for display on conventional video equipment. 12 figs.

  3. Boride-based nano-laminates with MAX-phase-like behaviour

    SciTech Connect (OSTI)

    Telle, Rainer . E-mail: telle@ghi.rwth-aachen.de; Momozawa, Ai; Music, Denis; Schneider, Jochen M.

    2006-09-15

    MAX-phases being usually composed of transition metals, group A elements and carbon/nitrogen are considered interesting materials for many applications because of their tremendous bulk modulus, 'reversible' plasticity, and machinability. This is mainly due to their unique kind of bonding comprising covalent, ionic as well as metallic bonds providing 'easy' planes of rupture and deformability due to the layered crystal structures. In transition metal boride systems, similar types of bonding are available. In particular the W{sub 2}B{sub 5}-structure type and its stacking variations allow the synthesis of strongly layered crystal structures exhibiting unique delamination phenomena. The paper presents ab initio calculations showing the similarities of bonding between the ternary carbides and the corresponding ternary or quaternary borides. Formation of boride-based nano-laminates from auxiliary liquid phases, from the melt as well as during sintering and precipitation from supersaturated solid solutions will be discussed by means of SEM and TEM studies. The role of impurities weakening the interlayer bonding will be addressed in particular. The pronounced cleavage parallel to the basal plane gives rise for crack deflection and pull-out mechanisms if the laminates are dispersed in brittle matrices such as boron carbide, silicon carbide or other transition metal borides. - Graphical abstract: Some transition metal borides crystallise in a layered structure of alternating stacks of metal and boron atoms giving rise for strongly anisotropic properties. Their preferred cleavage parallel and the deformability perpendicular to the basal plan are similar to the peculiar mechanical behaviour recently described for MAX-phases. Ab initio calculations of the crystal structure prove the weak bonds between the layers for a variety of borides which can be used to reinforce ceramic materials on a nano-scale level.

  4. MHL High Speed Cavitation | Open Energy Information

    Open Energy Info (EERE)

    16 Bandwidth(kHz) 20 Cameras Yes Description of Camera Types Wide variety of analog & digital surface cameras; high speed above and underwater cameras Available Sensors...

  5. Signal Speed in Nanomagnetic Logic Chains

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Signal Speed in Nanomagnetic Logic Chains Print The miniaturization of computing architectures has paved the way for personal hand-held electronic devices (smartphones, tablets,...

  6. Nuclear Speed-Dating | Department of Energy

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

    Speed-Dating Nuclear Speed-Dating March 10, 2015 - 10:48am Addthis Photo courtesy of Idaho National Laboratory. Photo courtesy of Idaho National Laboratory. Pat Adams Pat Adams Digital Content Specialist, Office of Public Affairs Nuclear Speed-Dating The future of nuclear energy needs smart, creative thinkers. That's why more than 120 experts met up last week to "speed-date" each other's ideas. Storified by Energy Department * Tue, Mar 10 2015 15:28:50 Nuclear Wetlands * James Marvin

  7. When to Purchase Premium Efficiency Motors | Department of Energy

    Broader source: Energy.gov (indexed) [DOE]

    Consider premium efficiency motors for new motor procurements when specifying motor-driven equipment, repairing or rewinding failed standard efficiency motors, or as replacements for older, operable lower efficiency motors. This is particularly important when the existing motor has been rewound or is oversized and underloaded. This tip sheet provides example calculation of potential savings and offers suggested actions. Motor Systems Tip Sheet #1 PDF icon When to Purchase Premium Efficiency

  8. A Novel MagPipe Pipeline transportation system using linear motor drives

    SciTech Connect (OSTI)

    Fang, J.R.; Montgomery, D.B.; Roderick, L.

    2009-11-15

    A novel capsule pipeline transportation system using linear motor drives, called Magplane MagPipe, is under development with the intention to replace trucks and railways for hauling materials from the mine to the rail head, power plant, or processing plant with reduced operating cost and energy consumption. The initial demonstration of a MagPipe line in Inner Mongolia will be a 500-m-long double-pipe coal transport system with the design transportation capacity of 3 Mega-Mg per year. The pipeline consists of 6-m-long plastic pipe modules with an I-beam suspension system inside the pipe to carry sets of five coupled capsules. The pipe will also contain noncontinuous motor winding modules spaced at 50-m intervals. A set of Halbach-arrayed permanent magnets on the bottom of the capsules interact with the linear motor windings to provide propulsion. The motor is driven by variable frequency drives outside the pipe to control the speed. This paper briefly describes the overall MagPipe pipeline transportation system, including the preliminary conclusions of the linear synchronous motor analysis.

  9. Optimizing Your Motor-Driven System

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

    OPTIMIZING YOUR MOTOR-DRIVEN SYSTEM Electric motor-driven systems are estimated to consume over half of all electricity in the United States and over 70% of all electricity in many industrial plants. This fact sheet presents an overview of electric drive systems and highlights common ways you can improve system efficiency and reli- ability. By optimizing the efficiency of your motor-driven systems, you can increase productivity while saving significant amounts of energy and money. Introduction A

  10. The Importance of Motor Shaft Alignment

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

    The Importance of Motor Shaft Alignment The objective of optimized shaft alignment is to increase the operating life span of rotating machinery. To achieve this goal, components that are the most likely to fail must be made to operate within their acceptable design limits. While misalignment has no measurable effect on motor effciency, correct shaft alignment ensures the smooth, effcient transmission of power from the motor to the driven equipment. Incorrect alignment occurs when the centerlines

  11. Rotary steerable motor system for underground drilling

    DOE Patents [OSTI]

    Turner, William E.; Perry, Carl A.; Wassell, Mark E.; Barbely, Jason R.; Burgess, Daniel E.; Cobern, Martin E.

    2010-07-27

    A preferred embodiment of a system for rotating and guiding a drill bit in an underground bore includes a drilling motor and a drive shaft coupled to drilling motor so that drill bit can be rotated by the drilling motor. The system further includes a guidance module having an actuating arm movable between an extended position wherein the actuating arm can contact a surface of the bore and thereby exert a force on the housing of the guidance module, and a retracted position.

  12. Rotary steerable motor system for underground drilling

    DOE Patents [OSTI]

    Turner, William E.; Perry, Carl A.; Wassell, Mark E.; Barbely, Jason R.; Burgess, Daniel E.; Cobern, Martin E.

    2008-06-24

    A preferred embodiment of a system for rotating and guiding a drill bit in an underground bore includes a drilling motor and a drive shaft coupled to drilling motor so that drill bit can be rotated by the drilling motor. The system further includes a guidance module having an actuating arm movable between an extended position wherein the actuating arm can contact a surface of the bore and thereby exert a force on the housing of the guidance module, and a retracted position.

  13. Design of voice coil motor dynamic focusing unit for a laser scanner

    SciTech Connect (OSTI)

    Lee, Moon G.; Kim, Gaeun; Lee, Chan-Woo; Lee, Soo-Hun; Jeon, Yongho

    2014-04-15

    Laser scanning systems have been used for material processing tasks such as welding, cutting, marking, and drilling. However, applications have been limited by the small range of motion and slow speed of the focusing unit, which carries the focusing optics. To overcome these limitations, a dynamic focusing system with a long travel range and high speed is needed. In this study, a dynamic focusing unit for a laser scanning system with a voice coil motor (VCM) mechanism is proposed to enable fast speed and a wide focusing range. The VCM has finer precision and higher speed than conventional step motors and a longer travel range than earlier lead zirconium titanate actuators. The system has a hollow configuration to provide a laser beam path. This also makes it compact and transmission-free and gives it low inertia. The VCM's magnetics are modeled using a permeance model. Its design parameters are determined by optimization using the Broyden–Fletcher–Goldfarb–Shanno method and a sequential quadratic programming algorithm. After the VCM is designed, the dynamic focusing unit is fabricated and assembled. The permeance model is verified by a magnetic finite element method simulation tool, Maxwell 2D and 3D, and by measurement data from a gauss meter. The performance is verified experimentally. The results show a resolution of 0.2 μm and travel range of 16 mm. These are better than those of conventional focusing systems; therefore, this focusing unit can be applied to laser scanning systems for good machining capability.

  14. System and method for determining stator winding resistance in an AC motor using motor drives

    DOE Patents [OSTI]

    Lu, Bin; Habetler, Thomas G; Zhang, Pinjia

    2013-02-26

    A system and method for determining the stator winding resistance of AC motors is provided. The system includes an AC motor drive having an input connectable to an AC source and an output connectable to an input terminal of an AC motor, a pulse width modulation (PWM) converter having switches therein to control current flow and terminal voltages in the AC motor, and a control system connected to the PWM converter. The control system generates a command signal to cause the PWM converter to control an output of the AC motor drive corresponding to an input to the AC motor, selectively generates a modified command signal to cause the PWM converter to inject a DC signal into the output of the AC motor drive, and determines a stator winding resistance of the AC motor based on the DC signal of at least one of the voltage and current.

  15. IEMDC-IN-LINE ELECTRIC MOTOR DRIVEN COMPRESSOR

    SciTech Connect (OSTI)

    Michael J. Crowley; Prem N. Bansal; John E. Tessaro

    2003-06-01

    During this reporting period, significant progress has been made towards the development of the IEMDC System design. Considerable effort was put forth by Curtiss-Wright EMD in the resolution of the technical issue of aerodynamically induced radial forces. This has provided a design basis with which to establish the radial magnetic bearing load capacity and the rotordynamic design. Dresser-Rand has made considerable progress on the flowpath design for the compressor section particularly on the volute and inlet aerodynamic design. All efforts show progression towards the successful integration of a centrifugal compressor and variable speed electric motor ventilated by the process gas. These efforts continue to confirm the feasibility of the IEMDC system design.

  16. Submerged electricity generation plane with marine current-driven motors

    SciTech Connect (OSTI)

    Dehlsen, James G.P.; Dehlsen, James B.; Fleming, Alexander

    2014-07-01

    An underwater apparatus for generating electric power from ocean currents and deep water tides. A submersible platform including two or more power pods, each having a rotor with fixed-pitch blades, with drivetrains housed in pressure vessels that are connected by a transverse structure providing buoyancy, which can be a wing depressor, hydrofoil, truss, or faired tube. The platform is connected to anchors on the seafloor by forward mooring lines and a vertical mooring line that restricts the depth of the device in the water column. The platform operates using passive, rather than active, depth control. The wing depressor, along with rotor drag loads, ensures the platform seeks the desired operational current velocity. The rotors are directly coupled to a hydraulic pump that drives at least one constant-speed hydraulic-motor generator set and enables hydraulic braking. A fluidic bearing decouples non-torque rotor loads to the main shaft driving the hydraulic pumps.

  17. Catalytically Induced Electrokinetics for Motors and Micropumps...

    Office of Scientific and Technical Information (OSTI)

    Electrokinetics for Motors and Micropumps. Abstract not provided. Authors: Paxton, Walter F Publication Date: 2011-10-01 OSTI Identifier: 1118642 Report Number(s):...

  18. List of Motors Incentives | Open Energy Information

    Open Energy Info (EERE)

    DuctAir sealing Furnaces Heat pumps Lighting Motors Refrigerators Water Heaters Windows Photovoltaics Solar Water Heat Ground Source Heat Pumps Yes Burbank Water & Power -...

  19. Electrical system for a motor vehicle

    DOE Patents [OSTI]

    Tamor, M.A.

    1999-07-20

    In one embodiment of the present invention, an electrical system for a motor vehicle comprises a capacitor, an engine cranking motor coupled to receive motive power from the capacitor, a storage battery and an electrical generator having an electrical power output, the output coupled to provide electrical energy to the capacitor and to the storage battery. The electrical system also includes a resistor which limits current flow from the battery to the engine cranking motor. The electrical system further includes a diode which allows current flow through the diode from the generator to the battery but which blocks current flow through the diode from the battery to the cranking motor. 2 figs.

  20. MotorMaster+ Software Tool Brochure

    Broader source: Energy.gov [DOE]

    This brochure provides information on AMO's MotorMaster+ software tool, including how it works, next steps, and how to access it.

  1. Mission Motors Company | Open Energy Information

    Open Energy Info (EERE)

    Place: San Francisco, California Zip: 94103 Product: San Francisco-based electric Motorcycle manufacturer. References: Mission Motors Company1 This article is a stub. You can...

  2. Blender Net Production of Finished Motor Gasoline

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

    Product: Total Finished Motor Gasoline Reformulated Gasoline Reformulated Blended w Fuel Ethanol Reformulated Other Conventional Gasoline Conventional Blended w Fuel Ethanol ...

  3. ,"Motor Gasoline Sales Through Retail Outlets Prices "

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

    ,"Worksheet Name","Description"," Of Series","Frequency","Latest Data for" ,"Data 1","Motor Gasoline Sales Through Retail Outlets Prices ",60,"Annual",2014,"6301984" ,"Release...

  4. Electrical system for a motor vehicle

    DOE Patents [OSTI]

    Tamor, Michael Alan (Toledo, OH)

    1999-01-01

    In one embodiment of the present invention, an electrical system for a motor vehicle comprises a capacitor, an engine cranking motor coupled to receive motive power from the capacitor, a storage battery and an electrical generator having an electrical power output, the output coupled to provide electrical energy to the capacitor and to the storage battery. The electrical system also includes a resistor which limits current flow from the battery to the engine cranking motor. The electrical system further includes a diode which allows current flow through the diode from the generator to the battery but which blocks current flow through the diode from the battery to the cranking motor.

  5. Sterling Motor Technologie | Open Energy Information

    Open Energy Info (EERE)

    Technologie Jump to: navigation, search Name: Sterling Motor Technologie Place: Karlsruhe, Baden-Wrttemberg, Germany Zip: 76131 Product: Development of sterling engines....

  6. Price of Motor Gasoline Through Retail Outlets

    Annual Energy Outlook [U.S. Energy Information Administration (EIA)]

    & Stocks by State (Dollars per Gallon Excluding Taxes) Data Series: Retail Price - Motor Gasoline Retail Price - Regular Gasoline Retail Price - Midgrade Gasoline Retail Price...

  7. Motor Wave Group | Open Energy Information

    Open Energy Info (EERE)

    Wave Group Jump to: navigation, search Name: Motor Wave Group Place: Hong Kong Region: China Sector: Marine and Hydrokinetic Website: www.motorwavegroup.com This company is listed...

  8. Smaller Footprint Drilling System for Deep and Hard Rock Environments; Feasibility of Ultra-High-Speed Diamond Drilling

    SciTech Connect (OSTI)

    TerraTek, A Schlumberger Company

    2008-12-31

    The two phase program addresses long-term developments in deep well and hard rock drilling. TerraTek believes that significant improvements in drilling deep hard rock will be obtained by applying ultra-high rotational speeds (greater than 10,000 rpm). The work includes a feasibility of concept research effort aimed at development that will ultimately result in the ability to reliably drill 'faster and deeper' possibly with smaller, more mobile rigs. The principle focus is on demonstration testing of diamond bits rotating at speeds in excess of 10,000 rpm to achieve high rate of penetration (ROP) rock cutting with substantially lower inputs of energy and loads. The significance of the 'ultra-high rotary speed drilling system' is the ability to drill into rock at very low weights on bit and possibly lower energy levels. The drilling and coring industry today does not practice this technology. The highest rotary speed systems in oil field and mining drilling and coring today run less than 10,000 rpm - usually well below 5,000 rpm. This document provides the progress through two phases of the program entitled 'Smaller Footprint Drilling System for Deep and Hard Rock Environments: Feasibility of Ultra-High-Speed Diamond Drilling' for the period starting 30 June 2003 and concluding 31 March 2009. The accomplishments of Phases 1 and 2 are summarized as follows: (1) TerraTek reviewed applicable literature and documentation and convened a project kick-off meeting with Industry Advisors in attendance (see Black and Judzis); (2) TerraTek designed and planned Phase I bench scale experiments (See Black and Judzis). Improvements were made to the loading mechanism and the rotational speed monitoring instrumentation. New drill bit designs were developed to provided a more consistent product with consistent performance. A test matrix for the final core bit testing program was completed; (3) TerraTek concluded small-scale cutting performance tests; (4) Analysis of Phase 1 data indicated that there is decreased specific energy as the rotational speed increases; (5) Technology transfer, as part of Phase 1, was accomplished with technical presentations to the industry (see Judzis, Boucher, McCammon, and Black); (6) TerraTek prepared a design concept for the high speed drilling test stand, which was planned around the proposed high speed mud motor concept. Alternative drives for the test stand were explored; a high speed hydraulic motor concept was finally used; (7) The high speed system was modified to accommodate larger drill bits than originally planned; (8) Prototype mud turbine motors and the high speed test stand were used to drive the drill bits at high speed; (9) Three different rock types were used during the testing: Sierra White granite, Crab Orchard sandstone, and Colton sandstone. The drill bits used included diamond impregnated bits, a polycrystalline diamond compact (PDC) bit, a thermally stable PDC (TSP) bit, and a hybrid TSP and natural diamond bit; and (10) The drill bits were run at rotary speeds up to 5500 rpm and weight on bit (WOB) to 8000 lbf. During Phase 2, the ROP as measured in depth of cut per bit revolution generally increased with increased WOB. The performance was mixed with increased rotary speed, with the depth cut with the impregnated drill bit generally increasing and the TSP and hybrid TSP drill bits generally decreasing. The ROP in ft/hr generally increased with all bits with increased WOB and rotary speed. The mechanical specific energy generally improved (decreased) with increased WOB and was mixed with increased rotary speed.

  9. Rare-Earth-Free Traction Motor: Rare Earth-Free Traction Motor for Electric Vehicle Applications

    SciTech Connect (OSTI)

    2012-01-01

    REACT Project: Baldor will develop a new type of traction motor with the potential to efficiently power future generations of EVs. Unlike today’s large, bulky EV motors which use expensive, imported rare-earth-based magnets, Baldor’s motor could be light, compact, contain no rare earth materials, and have the potential to deliver more torque at a substantially lower cost. Key innovations in this project include the use of a unique motor design, incorporation of an improved cooling system, and the development of advanced materials manufacturing techniques. These innovations could significantly reduce the cost of an electric motor.

  10. Avoid Nuisance Tripping with Premium Efficiency Motors

    Broader source: Energy.gov [DOE]

    In most cases, upgrading to premium efficiency motors has no noticeable impact on the electrical system. However, in rare cases nuisance trips can occur during start-up. Addressing this topic requires an understanding of starting current.This tip sheet discusses how to avoid nuisance tripping with premium efficiency motors and provides suggested actions.

  11. Buying an Energy-Efficient Electric Motor | Department of Energy

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

    Buying an Energy-Efficient Electric Motor Buying an Energy-Efficient Electric Motor Efficiency is an important factor to consider when buying or rewinding an electric motor. This...

  12. Proton Motor Fuel Cell GmbH | Open Energy Information

    Open Energy Info (EERE)

    Motor Fuel Cell GmbH Jump to: navigation, search Name: Proton Motor Fuel Cell GmbH Place: Starnberg, Germany Zip: D-82319 Product: Proton Motor Fuel Cell has been developing and...

  13. Honda motor company's CVCC engine

    SciTech Connect (OSTI)

    Abernathy, W.J.; Ronan, L.

    1980-07-01

    Honda Motor Company of Japan in a four-year period from 1968 to 1872 designed, tested, and mass-produced a stratified charge engine, the CVCC, which in comparison to conventional engines of similar output at the time was lower in CO, HC and NO/sub x/ emissions and higher in fuel economy. Honda developed the CVCC engine without government assistance or outside help. Honda's success came at a time when steadily increasing fuel costs and the various provisions of the Clean Air Act had forced US automakers to consider possible alternatives to the conventional gasoline engine. While most major engine manufacturers had investigated some form of stratified charge engine, Honda's CVCC was the only one to find successful market application. This case study examines the circumstances surrounding the development of the CVCC engine and its introduction into the Japanese and American markets.

  14. Electrostatic generator/motor configurations

    DOE Patents [OSTI]

    Post, Richard Freeman

    2012-09-11

    Electrostatic generators/motors designs are provided that include a stator fixedly connected to a first central support centered about a central axis. The stator elements are attached to the first central support. Similarly, a second stator is connected to a central support centered about the central axis, and the second stator has stator elements attached to the second central support. A rotor is located between the first stator and the second stator and includes an outer support, where the rotor is rotatably centered about the central axis, the rotor having elements in contact with the outer support, each rotor element having an extending rotor portion that extends radially from the outer support toward the axis of rotation.

  15. Premium Efficiency Motor Selection and Application Guide - A Handbook for

    Energy Savers [EERE]

    Industry | Department of Energy Premium Efficiency Motor Selection and Application Guide - A Handbook for Industry Premium Efficiency Motor Selection and Application Guide - A Handbook for Industry This handbook informs new motor purchase decisions by identifying energy and cost savings that can come from replacing motors with premium efficiency units. The handbook provides an overview of current motor use in the industrial sector, including the development of motor efficiency standards,

  16. Improve Motor System Efficiency with MotorMaster+, Software Tools for Industry, Industrial Technologies Program (ITP) (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2008-12-01

    This fact sheet describes how the Industrial Technologies Program MotorMaster+ software tool aids industrial plants with finding energy-efficient motor replacement options and managing motor systems.

  17. Counter-Rotating Tandem Motor Drilling System

    SciTech Connect (OSTI)

    Kent Perry

    2009-04-30

    Gas Technology Institute (GTI), in partnership with Dennis Tool Company (DTC), has worked to develop an advanced drill bit system to be used with microhole drilling assemblies. One of the main objectives of this project was to utilize new and existing coiled tubing and slimhole drilling technologies to develop Microhole Technology (MHT) so as to make significant reductions in the cost of E&P down to 5000 feet in wellbores as small as 3.5 inches in diameter. This new technology was developed to work toward the DOE's goal of enabling domestic shallow oil and gas wells to be drilled inexpensively compared to wells drilled utilizing conventional drilling practices. Overall drilling costs can be lowered by drilling a well as quickly as possible. For this reason, a high drilling rate of penetration is always desired. In general, high drilling rates of penetration (ROP) can be achieved by increasing the weight on bit and increasing the rotary speed of the bit. As the weight on bit is increased, the cutting inserts penetrate deeper into the rock, resulting in a deeper depth of cut. As the depth of cut increases, the amount of torque required to turn the bit also increases. The Counter-Rotating Tandem Motor Drilling System (CRTMDS) was planned to achieve high rate of penetration (ROP) resulting in the reduction of the drilling cost. The system includes two counter-rotating cutter systems to reduce or eliminate the reactive torque the drillpipe or coiled tubing must resist. This would allow the application of maximum weight-on-bit and rotational velocities that a coiled tubing drilling unit is capable of delivering. Several variations of the CRTDMS were designed, manufactured and tested. The original tests failed leading to design modifications. Two versions of the modified system were tested and showed that the concept is both positive and practical; however, the tests showed that for the system to be robust and durable, borehole diameter should be substantially larger than that of slim holes. As a result, the research team decided to complete the project, document the tested designs and seek further support for the concept outside of the DOE.

  18. Improving Motor and Drive System Performance: A Sourcebook for Industry

    SciTech Connect (OSTI)

    Not Available

    2008-09-01

    This is one in a series of sourcebooks to assist industrial personnel in understanding and optimizing motors and motor-driven systems

  19. Improving Motor and Drive System Performance: A Sourcebook for Industry

    SciTech Connect (OSTI)

    2010-06-25

    This is one in a series of sourcebooks to assist industrial personnel in understanding and optimizing motors and motor-driven systems.

  20. Improving Motor and Drive System Performance - A Sourcebook for...

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

    The sourcebook is divided into four main sections: Motor and Drive System Basics: Summarizes important terms, relationships, and system design considerations relating to motor and ...

  1. United States Industrial Motor-Driven Systems Market Assessment...

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

    Motor-Driven Systems Market Assessment: Charting a Roadmap to Energy Savings for Industry United States Industrial Motor-Driven Systems Market Assessment: Charting a Roadmap to ...

  2. Improved Organics for Power Electronics and Electric Motors ...

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

    More Documents & Publications Improved Organics for Power Electronics and Electric Motors Thermally Conductive Organic Dielectrics for Power Electronics and Electric Motors John ...

  3. Improved Organics for Power Electronics and Electric Motors ...

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

    More Documents & Publications Thermally Conductive Organic Dielectrics for Power Electronics and Electric Motors Improved Organics for Power Electronics and Electric Motors ORNL: ...

  4. Improve Motor Operation at Off-Design Voltages

    SciTech Connect (OSTI)

    Not Available

    2008-07-01

    This is one in a series of tip sheets to help manufacturers optimize their industrial motor and motor-driven systems.

  5. When Should Inverter-Duty Motors Be Specified?

    SciTech Connect (OSTI)

    Not Available

    2008-07-01

    This is one in a series of tip sheets to help manufacturers optimize their industrial motor and motor-driven systems.

  6. Motor monitoring method and apparatus using high frequency current components

    DOE Patents [OSTI]

    Casada, D.A.

    1996-05-21

    A motor current analysis method and apparatus for monitoring electrical-motor-driven devices are disclosed. The method and apparatus utilize high frequency portions of the motor current spectra to evaluate the condition of the electric motor and the device driven by the electric motor. The motor current signal produced as a result of an electric motor is monitored and the low frequency components of the signal are removed by a high-pass filter. The signal is then analyzed to determine the condition of the electrical motor and the driven device. 16 figs.

  7. Petroleum Products Table 31. Motor Gasoline Prices by Grade...

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

    at end of table. 31. Motor Gasoline Prices by Grade, Sales Type, PAD District, and State 56 Energy Information Administration Petroleum Marketing Annual 1996 Table 31. Motor...

  8. Optimizing Electric Motor Systems at a Corporate Campus Facility...

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

    Electric Motor Systems at a Corporate Campus Facility Optimizing Electric Motor Systems at a Corporate Campus Facility Minnesota Mining and Manufacturing (3M) conducted an in-house...

  9. United States Industrial Electric Motor Systems Market Opportunities...

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

    Electric Motor Systems Market Opportunities Assessment United States Industrial Electric Motor Systems Market Opportunities Assessment The objectives of the Market Assessment were...

  10. TEE-0003 - In the Matter of Emerson Motor Technologies | Department...

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

    03 - In the Matter of Emerson Motor Technologies TEE-0003 - In the Matter of Emerson Motor Technologies This Decision and Order considers an Application for Exception filed by...

  11. Motor monitoring method and apparatus using high frequency current components

    DOE Patents [OSTI]

    Casada, Donald A. (Knoxville, TN)

    1996-01-01

    A motor current analysis method and apparatus for monitoring electrical-motor-driven devices. The method and apparatus utilize high frequency portions of the motor current spectra to evaluate the condition of the electric motor and the device driven by the electric motor. The motor current signal produced as a result of an electric motor is monitored and the low frequency components of the signal are removed by a high-pass filter. The signal is then analyzed to determine the condition of the electrical motor and the driven device.

  12. Premium Efficiency Motor Selection and Application Guide - A...

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

    Premium Efficiency Motor Selection and Application Guide - A Handbook for Industry Premium Efficiency Motor Selection and Application Guide - A Handbook for Industry This handbook...

  13. United States Industrial Motor Systems Market Opportunities Assessment...

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

    Motor Systems Market Opportunities Assessment: Executive Summary United States Industrial Motor Systems Market Opportunities Assessment: Executive Summary In addition to serving...

  14. Replacing an Oversized and Underloaded Electric Motor | Department...

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

    Replacing an Oversized and Underloaded Electric Motor Replacing an Oversized and Underloaded Electric Motor This fact sheet will assist in decisions regarding replacement of...

  15. Vision Industries dba Vision Motor Corp | Open Energy Information

    Open Energy Info (EERE)

    Industries dba Vision Motor Corp Jump to: navigation, search Name: Vision Industries (dba Vision Motor Corp) Place: Santa Monica, California Zip: 90405 Product: Santa Monica-based...

  16. Ford Motor Co Sustainable Technologies and Hybrid Programme ...

    Open Energy Info (EERE)

    Motor Co Sustainable Technologies and Hybrid Programme Jump to: navigation, search Name: Ford Motor Co - Sustainable Technologies and Hybrid Programme Place: Allen Park, Michigan...

  17. Nevada Department of Motor Vehicles | Open Energy Information

    Open Energy Info (EERE)

    Nevada Department of Motor Vehicles Name: Nevada Department of Motor Vehicles Address: 555 Wright Way Place: Carson City, Nevada Zip: 89711 Phone Number: 702-486-4368 Website:...

  18. New rocket propellant and motor design offer high-performance...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    New rocket propellant and motor design offer high-performance and safety New rocket propellant and motor design offer high-performance and safety Scientists recently flight tested...

  19. Motor Systems Efficiency Supply Curves | Open Energy Information

    Open Energy Info (EERE)

    Motor Systems Efficiency Supply Curves Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Motor Systems Efficiency Supply Curves AgencyCompany Organization: United...

  20. Building Green in Greensburg: Dwane Shank Motors GM Dealership...

    Energy Savers [EERE]

    Green in Greensburg: Dwane Shank Motors GM Dealership Building Green in Greensburg: Dwane Shank Motors GM Dealership This poster highlights energy efficiency, renewable energy, and ...

  1. GENERAL MOTORS (GM) DIESEL TREND ANALYSIS RESULTS 1991-1993 ...

    Office of Scientific and Technical Information (OSTI)

    Technical Report: GENERAL MOTORS (GM) DIESEL TREND ANALYSIS RESULTS 1991-1993 (U) Citation Details In-Document Search Title: GENERAL MOTORS (GM) DIESEL TREND ANALYSIS RESULTS ...

  2. Estimating Motor Efficiency in the Field | Department of Energy

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

    Estimating Motor Efficiency in the Field Estimating Motor Efficiency in the Field Some utility companies and public agencies offer rebates to encourage customers to upgrade their ...

  3. Supercomputers Speed Search for New Subatomic Particles

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Supercomputers Speed Search for New Subatomic Particles Supercomputers Speed Search for New Subatomic Particles High-Precision Lattice QCD Computations Find Unexpected 'Penguin' Decay December 2, 2015 Contact: Kathy Kincade, kkincade@lbl.gov, 510-495-2124 penguin Artist's rendering of a rare B-meson "penguin" (decay process) showing the quark-level process. Image: Daping Du, Syracuse University A team of theoretical high-energy physicists in the Fermilab Lattice and MILC Collaborations

  4. Signal Speed in Nanomagnetic Logic Chains

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Signal Speed in Nanomagnetic Logic Chains Signal Speed in Nanomagnetic Logic Chains Print Wednesday, 30 September 2015 00:00 The miniaturization of computing architectures has paved the way for personal hand-held electronic devices (smartphones, tablets, etc.) that feature extraordinary computing power. For such battery-operated devices, keeping the power consumption low while continuing to add features is a major challenge. To address this issue, there is a worldwide research effort dedicated

  5. High-Pressure Flame Speed Measurements

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    and Droplet Processes in Combustion Outline of Presentation 1. Nonpremixed ignition, laminar flame propagation, and mechanism reduction of butanols 2. Effects of hydrogen addition on flame speeds of hydrocarbon fuels 3. Soot formation and explosive gasification in burning droplets of diesel/biodiesel/ethanol blends C. K. Law Princeton University Ignition, Flame Propagation and Mechanism Reduction of Butanols Experimental ď‚— Laminar flame speeds at elevated pressures determined from expanding

  6. Speed control system for an access gate

    DOE Patents [OSTI]

    Bzorgi, Fariborz M.

    2012-03-20

    An access control apparatus for an access gate. The access gate typically has a rotator that is configured to rotate around a rotator axis at a first variable speed in a forward direction. The access control apparatus may include a transmission that typically has an input element that is operatively connected to the rotator. The input element is generally configured to rotate at an input speed that is proportional to the first variable speed. The transmission typically also has an output element that has an output speed that is higher than the input speed. The input element and the output element may rotate around a common transmission axis. A retardation mechanism may be employed. The retardation mechanism is typically configured to rotate around a retardation mechanism axis. Generally the retardation mechanism is operatively connected to the output element of the transmission and is configured to retard motion of the access gate in the forward direction when the first variable speed is above a control-limit speed. In many embodiments the transmission axis and the retardation mechanism axis are substantially co-axial. Some embodiments include a freewheel/catch mechanism that has an input connection that is operatively connected to the rotator. The input connection may be configured to engage an output connection when the rotator is rotated at the first variable speed in a forward direction and configured for substantially unrestricted rotation when the rotator is rotated in a reverse direction opposite the forward direction. The input element of the transmission is typically operatively connected to the output connection of the freewheel/catch mechanism.

  7. Higher Speed, More Precision | The Ames Laboratory

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Higher Speed, More Precision In just a little over a year of operation, Ames Laboratory's dynamic nuclear polarization (DNP) solid-state nuclear magnetic resonance (NMR) spectrometer has successfully characterized materials at the atomic scale level with more speed and precision than ever possible before. Spectra for materials important to catalysis, solar energy, and hydrogen storage have helped scientists better understand how these materials work. Conventional NMR detects the responses of

  8. Aerosol Oxidation Speeds Up in Smoggy Air

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Aerosol Oxidation Speeds Up in Smoggy Air Aerosol Oxidation Speeds Up in Smoggy Air Print Wednesday, 17 February 2016 11:37 Organic aerosols (nanometer-sized liquid or solid particles suspended in air) are important constituents of the troposphere, and their chemistry has large-scale impacts on climate, pollution, and health. Accurate predictions of these aerosol impacts require a robust microphysical understanding of all relevant chemical reaction mechanisms and time scales, including those

  9. CRADA Final Report: Application of Dual-Mode Invertor Control to Commercially Available Radial-Gap Permanent Magnet Motors - Vol. 1

    SciTech Connect (OSTI)

    Lawler, J.S.; McKeever, J.W.; Downing, M.E.; Stahlhut, R.D; Bremmer, R.; Shoemaker, J.M.; Seksarian, A.K.; Poore, B.; Lutz, J.

    2006-05-01

    John Deere and Company (Deere), their partner, UQM Technologies, Inc. (UQM), and the Oak Ridge National Laboratory's (ORNL's) Power Electronics and Electric Machinery Research Center (PEEMRC) recently completed work on the cooperative research and development agreement (CRADA) Number ORNL 04-0691 outlined in this report. CRADA 04-0691 addresses two topical issues of interest to Deere: (1) Improved characterization of hydrogen storage and heat-transfer management; and (2) Potential benefits from advanced electric motor traction-drive technologies. This report presents the findings of the collaborative examination of potential operational and cost benefits from using ORNL/PEEMRC dual-mode inverter control (DMIC) to drive permanent magnet (PM) motors in applications of interest to Deere. DMIC was initially developed and patented by ORNL to enable PM motors to be driven to speeds far above base speed where the back-electromotive force (emf) equals the source voltage where it is increasingly difficult to inject current into the motor. DMIC is a modification of conventional phase advance (CPA). DMIC's dual-speed modes are below base speed, where traditional pulse-width modulation (PWM) achieves maximum torque per ampere (amp), and above base speed, where six-step operation achieves maximum power per amp. The modification that enables DMIC adds two anti-parallel thyristors in each of the three motor phases, which consequently adds the cost of six thyristors. Two features evaluated in this collaboration with potential to justify the additional thyristor cost were a possible reduction in motor cost and savings during operation because of higher efficiency, both permitted because of lower current. The collaborative analysis showed that the reduction of motor cost and base cost of the inverter was small, while the cost of adding six thyristors was greater than anticipated. Modeling the DMIC control displayed inverter efficiency gains due to reduced current, especially under light load and higher speed. This current reduction, which is the salient feature of DMIC, may be significant when operating duty cycles have low loads at high frequencies. Reduced copper losses make operation more efficient thereby reducing operating costs. In the Deere applications selected for this study, the operating benefit was overshadowed by the motor's rotational losses. Rotational losses of Deere 1 and Deere 2 dominate the overall drive efficiency so that their reduction has the greatest potential to improve performance. A good follow-up project would be to explore cost erective ways to reduce the rotational losses buy 66%.

  10. The Paris Motor Show | Department of Energy

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

    The Paris Motor Show The Paris Motor Show October 4, 2010 - 9:39am Addthis David Sandalow at the Paris Auto Show | DOE photo David Sandalow at the Paris Auto Show | DOE photo David Sandalow David Sandalow Former Under Secretary of Energy (Acting) and Assistant Secretary for Policy & International Affairs At the Paris Motor Show today, electric cars are everywhere. Chevrolet is showing off the Volt, its plug-in hybrid due in U.S. showrooms this December. (Motown music blared as a Chevy rep

  11. Extended core for motor/generator

    DOE Patents [OSTI]

    Shoykhet, Boris A.

    2005-05-10

    An extended stator core in a motor/generator can be utilized to mitigate losses in end regions of the core and a frame of the motor/generator. To mitigate the losses, the stator core can be extended to a length substantially equivalent to or greater than a length of a magnetically active portion in the rotor. Alternatively, a conventional length stator core can be utilized with a shortened magnetically active portion to mitigate losses in the motor/generator. To mitigate the losses in the core caused by stator winding, the core can be extended to a length substantially equivalent or greater than a length of stator winding.

  12. Extended core for motor/generator

    DOE Patents [OSTI]

    Shoykhet, Boris A.

    2006-08-22

    An extended stator core in a motor/generator can be utilized to mitigate losses in end regions of the core and a frame of the motor/generator. To mitigate the losses, the stator core can be extended to a length substantially equivalent to or greater than a length of a magnetically active portion in the rotor. Alternatively, a conventional length stator core can be utilized with a shortened magnetically active portion to mitigate losses in the motor/generator. To mitigate the losses in the core caused by stator winding, the core can be extended to a length substantially equivalent or greater than a length of stator winding.

  13. High-Speed Biomass Recalcitrance Pipeline Speeds Up Bio-Mass Analysis -

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Energy Innovation Portal High-Speed Biomass Recalcitrance Pipeline Speeds Up Bio-Mass Analysis Robotic pipeline allows for rapid analysis of optimal substrate/enzyme combination for efficient bio-fuel production. National Renewable Energy Laboratory Ames Laboratory Contact NREL About This Technology Technology Marketing SummaryPipeline analysis speeds up the process for the selection of plant species with the lowest natural recalcitrance (resistance to sugar conversion) as well as the

  14. An In-Depth Look at Ground Source Heat Pumps and Other Electric Loads in Two GreenMax Homes

    SciTech Connect (OSTI)

    Puttagunta, Srikanth; Shapiro, Carl

    2012-04-01

    Building America research team Consortium for Advanced Residential Buildings (CARB) partnered with WPPI Energy to answer key research questions on in-field performance of ground-source heat pumps and lighting, appliance, and miscellaneous loads (LAMELs) through extensive field monitoring at two WPPI GreenMax demonstration homes in Wisconsin. These two test home evaluations provided valuable data on the true in-field performance of various building mechanical systems and LAMELs.

  15. Mineral mining machine cutter driving mechanism having a load sensing device to regulate the haulage speed of the machine when the cutter driving mechanism is overloaded

    SciTech Connect (OSTI)

    Wilson, S.L.

    1981-05-26

    A mineral mining machine is disclosed that has a haulage drive mechanism and at least one cutter drive unit for cutting elements which may be at each end of the mining machine. The cutting elements are driven by an electric motor through a variable speed gear-train and the haulage mechanism is driven by a hydraulic motor through a geartrain. The invention provides for a torque sensing device associated with a part of each cutter drive mechanism to sense the power transmitted by the cutter gear-train and a power sensing device associated with the electric motor. The torque sensing devices are in the form of a mechanical or electrical transducer which provides a signal when the power transmitted by the cutter gear-trains exceed or tends to exceed the rated value of the cutter gears. The signal is transmitted to a hydraulic pump to control the output to the hydraulic motor and thereby effect reduction of the haulage speed. A signal from the power sensing device also controls the hydraulic pump to effect reduction of the haulage speed.

  16. Fabrication, assembly, bench and drilling tests of two prototype downhole pneumatic turbine motors: Final technical report

    SciTech Connect (OSTI)

    Bookwalter, R.; Duettra, P.D.; Johnson, P.; Lyons, W.C.; Miska, S.

    1987-04-01

    The first and second prototype downhole pneumatic turbine motors have been fabricated, assembled and tested. All bench tests showed that the motor will produce horsepower and bit speeds approximating the predicted values. Specifically, the downhole pneumatic turbine motor produced approximately 50 horsepower at 100 rpm, while being supplied with about 3600 SCFM of compressed air. The first prototype was used in a drilling test from a depth of 389 feet to a depth of 789 feet in the Kirtland formation. This first prototype motor drilled at a rate exceeding 180 ft/hr, utilizing only 3000 SCFM of compressed air. High temperature tests (at approximately 460/sup 0/F) were carried out on the thrust assembly and the gearboxes for the two prototypes. These components operated successfully at these temperatures. Although the bench and drilling tests were successful, the tests revealed design changes that should be made before drilling tests are carried out in geothermal boreholes at the Geysers area, near Santa Rosa, California.

  17. Variable Speed Pumping: A Guide to Successful Applications -...

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

    Variable Speed Pumping: A Guide to Successful Applications - Executive Summary Variable Speed Pumping: A Guide to Successful Applications - Executive Summary This document ...

  18. Probing Fukushima with cosmic rays should speed cleanup

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Probing Fukushima with cosmic rays should speed cleanup Probing Fukushima with cosmic rays should speed cleanup The initiative could reduce the time required to clean up the ...

  19. High-Speed, Temperature Programmable Gas Chromatography Utilizing...

    Office of Scientific and Technical Information (OSTI)

    High-Speed, Temperature Programmable Gas Chromatography Utilizing a Microfabricated Chip ... Citation Details In-Document Search Title: High-Speed, Temperature Programmable Gas ...

  20. Tesla Motors Inc | Open Energy Information

    Open Energy Info (EERE)

    Vehicles Product: California-based producer of luxury electric vehicles, such as sports cars. References: Tesla Motors Inc1 This article is a stub. You can help OpenEI by...

  1. Energy-efficient electric motors study

    SciTech Connect (OSTI)

    Not Available

    1981-03-23

    The study identifies the industrial decision makers, investigated the information they needed to know, how they can best be reached, and the motivating factors for purchasing energy-efficient electric motors. A survey was conducted of purchasers of integral horsepower polyphase motors. The survey measured current knowledge of and awareness of energy-efficient motors, decision-making criteria, information sources, purchase and usage patterns, and related factors. The survey data were used for the electric motor market penetration analysis. Additionally, a telephone survey was made. The study also provides analyses of distribution channels, commercialization constraints, and the impacts of government programs and rising energy prices. A description of study findings, conclusions, and recommendations is presented. Sample questionnaires and copies of letters to respondents are presented in 3 appendices. Appendices D and E contain descriptions of the methods used. (MCW)

  2. Trapped field internal dipole superconducting motor generator

    DOE Patents [OSTI]

    Hull, John R.

    2001-01-01

    A motor generator including a high temperature superconductor rotor and an internally disposed coil assembly. The motor generator superconductor rotor is constructed of a plurality of superconductor elements magnetized to produce a dipole field. The coil assembly can be either a conventional conductor or a high temperature superconductor. The superconductor rotor elements include a magnetization direction and c-axis for the crystals of the elements and which is oriented along the magnetization direction.

  3. Equivalent Circuit Modeling of Hysteresis Motors

    SciTech Connect (OSTI)

    Nitao, J J; Scharlemann, E T; Kirkendall, B A

    2009-08-31

    We performed a literature review and found that many equivalent circuit models of hysteresis motors in use today are incorrect. The model by Miyairi and Kataoka (1965) is the correct one. We extended the model by transforming it to quadrature coordinates, amenable to circuit or digital simulation. 'Hunting' is an oscillatory phenomenon often observed in hysteresis motors. While several works have attempted to model the phenomenon with some partial success, we present a new complete model that predicts hunting from first principles.

  4. Summer 2003 Motor Gasoline Outlook.doc

    Gasoline and Diesel Fuel Update (EIA)

    3 1 Short-Term Energy Outlook April 2003 Summer 2003 Motor Gasoline Outlook Summary For the upcoming summer season (April to September 2003), high crude oil costs and other factors are expected to yield average retail motor gasoline prices higher than those of last year. Current crude oil prices reflect a substantial uncertainty premium due to concerns about the current conflict in the Persian Gulf, lingering questions about whether Venezuelan oil production will recover to near pre-strike

  5. Avoid Nuisance Tripping with Premium Efficiency Motors

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

    Avoid Nuisance Tripping with Premium Efficiency Motors In most cases, upgrading to premium effciency motors has no noticeable impact on the electrical system. However, in rare cases nuisance trips can occur during start-up. Addressing this topic requires an understanding of starting current. The National Electrical Manufacturers Association (NEMA) recognizes and describes two components of starting current: instantaneous peak inrush and locked rotor current (LRC). Nuisance tripping primarily has

  6. General Motors Perspective | Department of Energy

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

    General Motors Perspective General Motors Perspective Presented at the R&D Strategies for Compressed, Cryo-Compressed and Cryo-Sorbent Hydrogen Storage Technologies Workshops on February 14 and 15, 2011. PDF icon compressed_hydrogen2011_2_oelerich.pdf More Documents & Publications Research and Development Strategies for Compressed & Cryo-Hydrogen Storage Systems - Workshop Summary Report Technical Assessment of Compressed Hydrogen Storage Tank Systems for Automotive Applications

  7. Continuous Energy Improvement in Motor Driven Systems

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

    Continuous Energy Improvement in Motor Driven Systems A GUIDEBOOK FOR INDUSTRY Continuous Energy Improvement in Motor Driven Systems DISCLAIMER This publication was prepared by the Washington State University Energy Program and the National Renewable Energy Laboratory for the U.S. Department of Energy's Office of Energy Efficiency and Renewable Energy. Neither the United States, DOE, the Copper Development Association, the Washington State University Energy Program, National Electrical

  8. A New Class of Switched Reluctance Motors | Department of Energy

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

    Motors A New Class of Switched Reluctance Motors 2009 DOE Hydrogen Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting, May 18-22, 2009 -- Washington D.C. PDF icon apep_02_burress.pdf More Documents & Publications A New Class of Switched Reluctance Motors without Permanent Magnets A New Class of Switched Reluctance Motors without Permanent Magnets

  9. Convective Cooling and Passive Stack Improvements in Motors (Presentation)

    SciTech Connect (OSTI)

    Bennion, K.

    2014-06-01

    This presentation discusses current research at NREL in convective cooling and passive stack improvements in motors.

  10. Improve Motor Operation at Off-Design Voltages

    Broader source: Energy.gov [DOE]

    Motors are designed to operate within ± 10% of their nameplate rated voltages. When motors operate at conditions of over and undervoltage, motor efficiency and other performance parameters are degraded. This tip sheet describes what happens to motor performance when voltage varies and provides suggested actions.

  11. A Guide to AC Motor Repair and Replacement

    SciTech Connect (OSTI)

    2004-03-01

    This booklet provides helpful information for making informed repair or replace decisions for electric motors.

  12. Laminar flame speeds of moist syngas mixtures

    SciTech Connect (OSTI)

    Das, Apurba K. [Department of Mechanical and Aerospace Engineering, Case Western Reserve University, Cleveland, OH 44106 (United States); Kumar, Kamal; Sung, Chih-Jen [Department of Mechanical Engineering, University of Connecticut, Storrs, CT 06269 (United States)

    2011-02-15

    This work experimentally investigates the effect of the presence of water vapor on the laminar flame speeds of moist syngas/air mixtures using the counterflow twin-flame configuration. The experimental results presented here are for fuel lean syngas mixtures with molar percentage of hydrogen in the hydrogen and carbon monoxide mixture varying from 5% to 100%, for an unburned mixture temperature of 323 K, and under atmospheric pressure. At a given equivalence ratio, the effect of varying amount of water vapor addition on the measured laminar flame speed is demonstrated. The experimental laminar flame speeds are also compared with computed values using chemical kinetic mechanisms reported in the literature. It is found that laminar flame speed varies non-monotonically with addition of water for the carbon monoxide rich mixtures. It first increases with increasing amount of water addition, reaches a maximum value, and then decreases. An integrated reaction path analysis is further conducted to understand the controlling mechanism responsible for the non-monotonic variation in laminar flame speed due to water addition. On the other hand, for higher values of H{sub 2}/CO ratio the laminar flame speed monotonically decreases with increasing water addition. It is shown that the competition between the chemical and thermal effects of water addition leads to the observed response. Furthermore, reaction rate sensitivity analysis as well as binary diffusion coefficient sensitivity analysis are conducted to identify the possible sources of discrepancy between the experimental and predicted values. The sensitivity results indicate that the reaction rate constant of H{sub 2}+OH = H{sub 2}O+H is worth revisiting and refinement of binary diffusion coefficient data of N{sub 2}-H{sub 2}O, N{sub 2}-H{sub 2}, and H{sub 2}-H{sub 2}O pairs can be considered. (author)

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

    SciTech Connect (OSTI)

    Hunt, A.; Easley, S.

    2012-05-01

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

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

    SciTech Connect (OSTI)

    Hunt, A.; Easley, S.

    2012-05-01

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

  15. High Speed SPM of Functional Materials

    SciTech Connect (OSTI)

    Huey, Bryan D.

    2015-08-14

    The development and optimization of applications comprising functional materials necessitates a thorough understanding of their static and dynamic properties and performance at the nanoscale. Leveraging High Speed SPM and concepts enabled by it, efficient measurements and maps with nanoscale and nanosecond temporal resolution are uniquely feasible. This includes recent enhancements for topographic, conductivity, ferroelectric, and piezoelectric properties as originally proposed, as well as newly developed methods or improvements to AFM-based mechanical, friction, thermal, and photoconductivity measurements. The results of this work reveal fundamental mechanisms of operation, and suggest new approaches for improving the ultimate speed and/or efficiency, of data storage systems, magnetic-electric sensors, and solar cells.

  16. Improve Motor Operation at Off-Design Voltages

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

    Improve Motor Operation at Off-Design Voltages Motors are designed to operate within ± 10% of their nameplate rated voltages. When motors operate at conditions of over and undervoltage, motor effciency and other performance parameters are degraded. There are certain standard utilization voltages for motors. These correspond to (but are about 4% lower than) standard service voltages. The voltage difference is established to allow for a reasonable line voltage drop between the transformer

  17. Improving Motor and Drive System Performance - A Sourcebook for Industry

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

    | Department of Energy Improving Motor and Drive System Performance - A Sourcebook for Industry Improving Motor and Drive System Performance - A Sourcebook for Industry This sourcebook outlines opportunities to improve motor and drive systems performance. The sourcebook is divided into four main sections: Motor and Drive System Basics: Summarizes important terms, relationships, and system design considerations relating to motor and drive systems. Performance Opportunity Road Map: Details the

  18. Improving Motor and Drive System Performance - A Sourcebook for Industry

    Office of Environmental Management (EM)

    | Department of Energy Motor and Drive System Performance - A Sourcebook for Industry Improving Motor and Drive System Performance - A Sourcebook for Industry This sourcebook outlines opportunities to improve motor and drive systems performance. The sourcebook is divided into four main sections: Motor and Drive System Basics: Summarizes important terms, relationships, and system design considerations relating to motor and drive systems. Performance Opportunity Road Map: Details the key

  19. Model Repair Specifications for Low Voltage Induction Motors | Department

    Office of Environmental Management (EM)

    of Energy Model Repair Specifications for Low Voltage Induction Motors Model Repair Specifications for Low Voltage Induction Motors These Model Repair Specifications are intended to cover routine repair and rewind of low-voltage random-wound three-phase AC squirrel cage induction motors. PDF icon Model Repair Specifications for Low Voltage Induction Motors (November 1999) More Documents & Publications DOE Navigant Master Presentation Improving Motor and Drive System Performance - A

  20. Subcontract Report: Final Report on Assessment of Motor Technologies for Traction Drives of Hybrid and Electric Vehicles (Subcontract #4000080341)

    SciTech Connect (OSTI)

    Fezzler, Raymond

    2011-03-01

    Currently, interior permanent magnet (IPM) motors with rare-earth (RE) magnets are almost universally used for hybrid and electric vehicles (EVs) because of their superior properties, particularly power density. However, there is now a distinct possibility of limited supply or very high cost of RE magnets that could make IPM motors unavailable or too expensive. Because development of electric motors is a critical part of the U.S. Department of Energy (DOE) Advanced Power Electronics and Motors activity, DOE needs to determine which options should be investigated and what barriers should be addressed. Therefore, in order to provide a basis for deciding which research topics should be pursued, an assessment of various motor technologies was conducted to determine which, if any, is potentially capable of meeting FreedomCAR 2015 and 2020 targets. Highest priority was given to IPM, surface mounted permanent magnet (SPM), induction, and switched reluctance (SR) motors. Also of interest, but with lesser emphasis, were wheel motors, multiple-rotor motors, motors with external excitation, and several others that emerged from the assessment. Cost and power density (from a design perspective, the power density criterion translates to torque density) are emerging as the two most important properties of motors for traction drives in hybrid and EVs, although efficiency and specific power also are very important. The primary approach for this assessment involved interviews with original equipment manufacturers (OEMs), their suppliers, and other technical experts. For each technology, the following issues were discussed: (1) The current state-of-the-art performance and cost; (2) Recent trends in the technology; (3) Inherent characteristics of the motor - which ones limit the ability of the technology to meet the targets and which ones aid in meeting the target; (4) What research and development (R&D) would be needed to meet the targets; and (5) The potential for the technology to meet the targets. The interviews were supplemented with information from past Oak Ridge National Laboratory (ORNL) reports, previous assessments that were conducted in 2004, and literature on magnet technology. The results of the assessment validated the DOE strategy involving three parallel paths: (1) there is enough of a possibility that RE magnets will continue to be available, either from sources outside China or from increased production in China, that development of IPM motors using RE magnets should be continued with emphasis on meeting the cost target. (2) yet the possibility that RE magnets may become unavailable or too expensive justifies efforts to develop innovative designs for permanent magnet (PM) motors that do not use RE magnets. Possible other magnets that may be substituted for RE magnets include samarium-cobalt (Sm-Co), Alnico, and ferrites. Alternatively, efforts to develop motors that do not use PMs but offer attributes similar to IPM motors also are encouraged. (3) New magnet materials using new alloys or processing techniques that would be less expensive or have comparable or superior properties to existing materials should be developed if possible. IPM motors are by far the most popular choice for hybrid and EVs because of their high power density, specific power, and constant power-speed ratio (CPSR). Performance of these motors is optimized when the strongest possible magnets - i.e., RE neodymium-iron-boron (NdFeB) magnets - are used.

  1. A High Vacuum High Speed Ion Pump

    DOE R&D Accomplishments [OSTI]

    Foster, J. S. Jr.; Lawrence, E. O.; Lofgren, E. J.

    1952-08-27

    A vacuum pump based on the properties of a magnetically collimated electric discharge is described. It has a speed in the range 3000 to 7000 liters a second and a base pressure in the order of 10{sup -6} mm. (auth)

  2. Commercial Building Motor Protection Response Report

    SciTech Connect (OSTI)

    James, Daniel P.; Kueck, John

    2015-06-17

    When voltages recover, motors may immediately reenergize and reaccelerate, or delay for a few minutes, or stay stalled. The estimated motor response is given for both the voltage sag magnitude and voltage sag duration. These response estimates are based on experience and available test data. Good data is available for voltage sag response for many components such as relays and contactors, but little data is available for both voltage sag and recovery response. The tables in Appendix A include data from recent voltage sag and recovery tests performed by SCE and BPA on air conditioners and energy management systems. The response of the motor can vary greatly depending on the type of protection and control. The time duration for the voltage sag consists of those times that are of interest for bulk power system modelers.

  3. The Role of Reluctance in PM Motors

    SciTech Connect (OSTI)

    Otaduy, P.J.

    2005-06-16

    The international research community has lately focused efforts on interior permanent magnet (IPM) motors to produce a traction motor for hybrid electric vehicles (HEV). One of the beneficial features of this technology is the additional torque produced by reluctance. The objective of this report is to analytically describe the role that reluctance plays in permanent magnet (PM) motors, to explore ways to increase reluctance torque without sacrificing the torque produced by the PMs, and to compare three IPM configurations with respect to torque, power, amount of magnet material required (cost), and percentage of reluctance torque. Results of this study will be used to determine future research directions in utilizing reluctance to obtain maximum torque and power while using a minimum amount of magnet material.

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

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Replacing Single-Speed Pool Pumps with Variable Speed Pumps for Energy Savings A. Hunt and S. Easley Building America Retrofit Alliance (BARA) May 2012 NOTICE This report was prepared as an account of work sponsored by an agency of the United States government. Neither the United States government nor any agency thereof, nor any of their employees, subcontractors, or affiliated partners makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy,

  5. U.S. Department of Energy's Motor Challenge Program: A National...

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

    Department of Energy's Motor Challenge Program: A National Strategy for Energy Efficient Industrial Motor-Driven Systems U.S. Department of Energy's Motor Challenge Program: A...

  6. Thermodynamics in variable speed of light theories

    SciTech Connect (OSTI)

    Racker, Juan [CONICET, Centro Atomico Bariloche, Avenida Bustillo 9500 (8400), San Carlos De Bariloche (Argentina); Facultad de Ciencias Astronomicas y Geofisicas, Universidad Nacional de La Plata, Paseo del Bosque S/N (1900), La Plata (Argentina); Sisterna, Pablo [Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Mar del Plata, Funes 3350 (7600), Mar del Plata (Argentina); Vucetich, Hector [Facultad de Ciencias Astronomicas y Geofisicas, Universidad Nacional de La Plata, Paseo del Bosque S/N (1900), La Plata (Argentina)

    2009-10-15

    The perfect fluid in the context of a covariant variable speed of light theory proposed by J. Magueijo is studied. On the one hand the modified first law of thermodynamics together with a recipe to obtain equations of state are obtained. On the other hand the Newtonian limit is performed to obtain the nonrelativistic hydrostatic equilibrium equation for the theory. The results obtained are used to determine the time variation of the radius of Mercury induced by the variability of the speed of light (c), and the scalar contribution to the luminosity of white dwarfs. Using a bound for the change of that radius and combining it with an upper limit for the variation of the fine structure constant, a bound on the time variation of c is set. An independent bound is obtained from luminosity estimates for Stein 2015B.

  7. High-speed massively parallel scanning

    DOE Patents [OSTI]

    Decker, Derek E. (Byron, CA)

    2010-07-06

    A new technique for recording a series of images of a high-speed event (such as, but not limited to: ballistics, explosives, laser induced changes in materials, etc.) is presented. Such technique(s) makes use of a lenslet array to take image picture elements (pixels) and concentrate light from each pixel into a spot that is much smaller than the pixel. This array of spots illuminates a detector region (e.g., film, as one embodiment) which is scanned transverse to the light, creating tracks of exposed regions. Each track is a time history of the light intensity for a single pixel. By appropriately configuring the array of concentrated spots with respect to the scanning direction of the detection material, different tracks fit between pixels and sufficient lengths are possible which can be of interest in several high-speed imaging applications.

  8. THE RELATIONSHIP BETWEEN {nu}{sub max} AND AGE t FROM ZAMS TO RGB-TIP FOR LOW-MASS STARS

    SciTech Connect (OSTI)

    Tang, Y. K.; Gai, N. E-mail: ning.gai@hotmail.com

    2013-07-10

    Stellar age is an important quantity in astrophysics, which is useful for many fields both in the universe and galaxies. It cannot be determined by direct measurements, but can only be estimated or inferred. We attempt to find a useful indicator of stellar age, which is accurate from the zero-age main sequence to the tip of red giant branch for low-mass stars. Using the Yale Rotation and Evolution Code (YREC), a grid of stellar models has been constructed. Meanwhile, the frequency of maximum oscillations' power {nu}{sub max} and the large frequency separation {Delta}{nu} are calculated using the scaling relations. For the stars, the masses of which are from 0.8 M{sub Sun} to 2.8 M{sub Sun }, we can obtain the {nu}{sub max} and stellar age by combing the scaling relations with the four sets of grid models (YREC, Dotter et al., Marigo et al., and YY isochrones). We find that {nu}{sub max} is tightly correlated and decreases monotonically with the age of the star from the main sequence to the red giant evolutionary stages. Moreover, we find that the line shapes of the curves in the Age versus {nu}{sub max} diagram, which is plotted by the four sets of grid models, are consistent for red giants with masses from 1.1 M{sub Sun} to 2.8 M{sub Sun }. For red giants, the differences of correlation coefficients between Age and {nu}{sub max} for different grid models are minor and can be ignored. Interestingly, we find two peaks that correspond to the subgiants and bump of red giants in the Age versus {nu}{sub max} diagram. By general linear least-squares, we make the polynomial fitting and deduce the relationship between log(Age) and log({nu}{sub max}) in red giants' evolutionary state.

  9. Soft-commutated direct current motor

    DOE Patents [OSTI]

    Hsu, J.S.

    1999-07-27

    A method and circuit is disclosed for soft-commutation of a direct current (DC) motor. An attenuation circuit is connected through auxiliary brushes A, A[prime], B and B[prime] to the commutator (16) to drain circuit from successive armature coils (15) before the main brushes (27, 28) disconnects from each of the coils (15). This prevents the spark generation that normally occurs in conventional DC motors. The attenuation circuit may also be connected before energization of the coil (15) for a soft turning on operation. 13 figs.

  10. Motor Gasoline Market Model documentation report

    SciTech Connect (OSTI)

    Not Available

    1993-09-01

    The purpose of this report is to define the objectives of the Motor Gasoline Market Model (MGMM), describe its basic approach and to provide detail on model functions. This report is intended as a reference document for model analysts, users, and the general public. The MGMM performs a short-term (6- to 9-month) forecast of demand and price for motor gasoline in the US market; it also calculates end of month stock levels. The model is used to analyze certain market behavior assumptions or shocks and to determine the effect on market price, demand and stock level.

  11. Advanced motor driven clamped borehole seismic receiver

    DOE Patents [OSTI]

    Engler, B.P.; Sleefe, G.E.; Striker, R.P.

    1993-02-23

    A borehole seismic tool is described including a borehole clamp which only moves perpendicular to the borehole. The clamp is driven by an electric motor, via a right angle drive. When used as a seismic receiver, the tool has a three part housing, two of which are hermetically sealed. Accelerometers or geophones are mounted in one hermetically sealed part, the electric motor in the other hermetically sealed part, and the clamp and right angle drive in the third part. Preferably the tool includes cable connectors at both ends. Optionally a shear plate can be added to the clamp to extend the range of the tool.

  12. Soft-commutated direct current motor

    DOE Patents [OSTI]

    Hsu, John S. (Oak Ridge, TN)

    1999-01-01

    A method and circuit is disclosed for soft-commutation of a direct current (DC) motor. An attenuation circuit is connected through auxiliary brushes A, A', B and B' to the commutator (16) to drain circuit from successive armature coils (15) before the main brushes (27, 28) disconnects from each of the coils (15). This prevents the spark generation that normally occurs in conventional DC motors. The attenuation circuit may also be connected before energization of the coil (15) for a soft turning on operation.

  13. Signal Speed in Nanomagnetic Logic Chains

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Signal Speed in Nanomagnetic Logic Chains Print The miniaturization of computing architectures has paved the way for personal hand-held electronic devices (smartphones, tablets, etc.) that feature extraordinary computing power. For such battery-operated devices, keeping the power consumption low while continuing to add features is a major challenge. To address this issue, there is a worldwide research effort dedicated to minimizing the energy required to perform computational operations and to

  14. Signal Speed in Nanomagnetic Logic Chains

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Signal Speed in Nanomagnetic Logic Chains Print The miniaturization of computing architectures has paved the way for personal hand-held electronic devices (smartphones, tablets, etc.) that feature extraordinary computing power. For such battery-operated devices, keeping the power consumption low while continuing to add features is a major challenge. To address this issue, there is a worldwide research effort dedicated to minimizing the energy required to perform computational operations and to

  15. Signal Speed in Nanomagnetic Logic Chains

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Signal Speed in Nanomagnetic Logic Chains Print The miniaturization of computing architectures has paved the way for personal hand-held electronic devices (smartphones, tablets, etc.) that feature extraordinary computing power. For such battery-operated devices, keeping the power consumption low while continuing to add features is a major challenge. To address this issue, there is a worldwide research effort dedicated to minimizing the energy required to perform computational operations and to

  16. Signal Speed in Nanomagnetic Logic Chains

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Signal Speed in Nanomagnetic Logic Chains Print The miniaturization of computing architectures has paved the way for personal hand-held electronic devices (smartphones, tablets, etc.) that feature extraordinary computing power. For such battery-operated devices, keeping the power consumption low while continuing to add features is a major challenge. To address this issue, there is a worldwide research effort dedicated to minimizing the energy required to perform computational operations and to

  17. Signal Speed in Nanomagnetic Logic Chains

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Signal Speed in Nanomagnetic Logic Chains Print The miniaturization of computing architectures has paved the way for personal hand-held electronic devices (smartphones, tablets, etc.) that feature extraordinary computing power. For such battery-operated devices, keeping the power consumption low while continuing to add features is a major challenge. To address this issue, there is a worldwide research effort dedicated to minimizing the energy required to perform computational operations and to

  18. Signal Speed in Nanomagnetic Logic Chains

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Signal Speed in Nanomagnetic Logic Chains Print The miniaturization of computing architectures has paved the way for personal hand-held electronic devices (smartphones, tablets, etc.) that feature extraordinary computing power. For such battery-operated devices, keeping the power consumption low while continuing to add features is a major challenge. To address this issue, there is a worldwide research effort dedicated to minimizing the energy required to perform computational operations and to

  19. CASL - Nuclear Energy - Supercomputer speeds path forward

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Nuclear Energy - Supercomputer speeds path forward When run on graphics processing units, Denovo ran 3.5 times faster than what was possible with ORNL's Jaguar, which uses only central processing units. With this increase, 3D simulations are now within reach, said Tom Evans, who led the Denovo development team. Titan is a GPU/CPU hybrid to be installed over the next several months. This research supports the Consortium for Advanced Simulation of Light Water Reactors (http://www.casl.gov/).

  20. Aerosol Oxidation Speeds Up in Smoggy Air

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Aerosol Oxidation Speeds Up in Smoggy Air Print Organic aerosols (nanometer-sized liquid or solid particles suspended in air) are important constituents of the troposphere, and their chemistry has large-scale impacts on climate, pollution, and health. Accurate predictions of these aerosol impacts require a robust microphysical understanding of all relevant chemical reaction mechanisms and time scales, including those involving highly reactive free-radical molecules. However, detailed modeling is

  1. Aerosol Oxidation Speeds Up in Smoggy Air

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Aerosol Oxidation Speeds Up in Smoggy Air Print Organic aerosols (nanometer-sized liquid or solid particles suspended in air) are important constituents of the troposphere, and their chemistry has large-scale impacts on climate, pollution, and health. Accurate predictions of these aerosol impacts require a robust microphysical understanding of all relevant chemical reaction mechanisms and time scales, including those involving highly reactive free-radical molecules. However, detailed modeling is

  2. Aerosol Oxidation Speeds Up in Smoggy Air

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Aerosol Oxidation Speeds Up in Smoggy Air Print Organic aerosols (nanometer-sized liquid or solid particles suspended in air) are important constituents of the troposphere, and their chemistry has large-scale impacts on climate, pollution, and health. Accurate predictions of these aerosol impacts require a robust microphysical understanding of all relevant chemical reaction mechanisms and time scales, including those involving highly reactive free-radical molecules. However, detailed modeling is

  3. Data Capture Technique for High Speed Signaling

    DOE Patents [OSTI]

    Barrett, Wayne Melvin; Chen, Dong; Coteus, Paul William; Gara, Alan Gene; Jackson, Rory; Kopcsay, Gerard Vincent; Nathanson, Ben Jesse; Vranas, Paylos Michael; Takken, Todd E.

    2008-08-26

    A data capture technique for high speed signaling to allow for optimal sampling of an asynchronous data stream. This technique allows for extremely high data rates and does not require that a clock be sent with the data as is done in source synchronous systems. The present invention also provides a hardware mechanism for automatically adjusting transmission delays for optimal two-bit simultaneous bi-directional (SiBiDi) signaling.

  4. Energy curable compositions having improved cure speeds

    DOE Patents [OSTI]

    Halm, Leo W. (Blaine, MN)

    1993-01-01

    A composition and method provide improved physical properties and cure speed of polyurethane precursors, with or without free radical polymerizable monomers or oligomers present, by use of a two component catalyst system. The resin blend can be activated with a latent organometallic catalyst combined with an organic peroxide which can be a hydroperoxide or an acyl peroxide to decrease the cure time while increasing the break energy and tangent modulus of the system.

  5. Energy curable compositions having improved cure speeds

    DOE Patents [OSTI]

    Halm, L.W.

    1993-05-18

    The composition and method provide improved physical properties and cure speed of polyurethane precursors, with or without free radical polymerizable monomers or oligomers present, by use of a two component catalyst system. The resin blend can be activated with a latent organometallic catalyst combined with an organic peroxide which can be a hydroperoxide or an acyl peroxide to decrease the cure time while increasing the break energy and tangent modulus of the system.

  6. how-to-speed-up-traffic

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    How to Speed up Traffic Simulation and Routing Calculation? Experiences using Simplified Traffic Flow Models, Multi-core Programming Interface, and Cloud Computing Architecture Xuesong Zhou, Ph.D. Assistant Professor Dept. of Civil and Environmental Engineering 122 South Central Campus Dr. Salt Lake City, UT 84112-0561 Phone: 801-585-6590 Fax: 801-585-5477 Email: This email address is being protected from spambots. You need JavaScript enabled to view it. List of Authors ================ Xuesong

  7. Aerosol Oxidation Speeds Up in Smoggy Air

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Aerosol Oxidation Speeds Up in Smoggy Air Print Organic aerosols (nanometer-sized liquid or solid particles suspended in air) are important constituents of the troposphere, and their chemistry has large-scale impacts on climate, pollution, and health. Accurate predictions of these aerosol impacts require a robust microphysical understanding of all relevant chemical reaction mechanisms and time scales, including those involving highly reactive free-radical molecules. However, detailed modeling is

  8. Algae Raceway to speed path to biofuels

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Algae Raceway to speed path to biofuels - Sandia Energy Energy Search Icon Sandia Home Locations Contact Us Employee Locator Energy & Climate Secure & Sustainable Energy Future Stationary Power Energy Conversion Efficiency Solar Energy Wind Energy Water Power Supercritical CO2 Geothermal Natural Gas Safety, Security & Resilience of the Energy Infrastructure Energy Storage Nuclear Power & Engineering Grid Modernization Battery Testing Nuclear Fuel Cycle Defense Waste Management

  9. Collective alignment of polar filaments by molecular motors.

    SciTech Connect (OSTI)

    Ziebert, F.; Aranson, I. S.; Vershinin, M.; Gross, S. P.; Materials Science Division; Univ. of California at Irvine

    2009-04-01

    We study the alignment of polar biofilaments, such as microtubules and actin, subject to the action of multiple molecular motors attached simultaneously to more than one filament. Focusing on a paradigm model of only two filaments interacting with multiple motors, we were able to investigate in detail the alignment dynamics. While almost no alignment occurs in the case of a single motor, the filaments become rapidly aligned due to the collective action of the motors. Our analysis shows that the alignment time is governed by the number of bound motors and the magnitude of the motors stepping fluctuations. We predict that the time scale of alignment is in the order of seconds, much faster than that reported for passive crosslink-induced bundling. In vitro experiments on the alignment of microtubules by multiple-motor covered beads are in qualitative agreement. We also discuss another mode of fast alignment of filaments, namely the cooperation between motors and passive crosslinks.

  10. 38017,"AMERADA HESS CORP ",1,130,"MOTOR...

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

    INC ",1,130,"MOTOR GAS, CONVENTIONAL, OTHER",4912,"GUAYANILLA, PR","PUERTO RICO",6,830,"SPAIN",15,0,0,,,,, 38017,"TRAMMO PETRO INC ",2,130,"MOTOR GAS, CONVENTIONAL,...

  11. Advanced Power Electronics and Electric Motors R&D | Department...

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

    R&D Advanced Power Electronics and Electric Motors R&D 2011 DOE Hydrogen and Fuel Cells ... More Documents & Publications Advanced Power Electronics and Electric Motors (APEEM) R&D ...

  12. TRI State Motor Transit to Resume Shipping Waste to WIPP

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Tri-State Motor Transit to Resume Shipping Transuranic Waste to WIPP CARLSBAD, N.M., January 19, 2001 - Tri-State Motor Transit will resume shipping waste to the Waste Isolation...

  13. Secrets of the Motor That Drives Archaea Revealed

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Secrets of the Motor That Drives Archaea Revealed Secrets of the Motor That Drives Archaea Revealed Print Thursday, 14 February 2013 00:00 An international team led by John Tainer...

  14. Physical context management for a motor vehicle

    DOE Patents [OSTI]

    Dixon, Kevin R. (Albuquerque, NM); Forsythe, James C. (Sandia Park, NM); Lippitt, Carl E. (Albuquerque, NM); Lippitt, legal representative, Lois Diane (Albuquerque, NM)

    2009-10-27

    Computer software for and a method of enhancing safety for an operator of a motor vehicle comprising employing a plurality of sensors of vehicle and operator conditions, matching collective output from the sensors against a plurality of known dangerous conditions, and preventing certain activity of the operator if a known dangerous condition is detected.

  15. Motor Thermal Control | Department of Energy

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

    Thermal Control Motor Thermal Control 2010 DOE Vehicle Technologies and Hydrogen Programs Annual Merit Review and Peer Evaluation Meeting, June 7-11, 2010 -- Washington D.C. PDF icon ape030_bennion_2010_p.pdf More Documents & Publications Thermal Management of PHEV / EV Charging Systems Integrated Vehicle Thermal Management Power Electronic Thermal System Performance and Integration

  16. Optimizing Your Motor-Driven System

    Broader source: Energy.gov [DOE]

    This fact sheet presents an overview of electric drive systems and highlights common ways you can improve system efficiency and reliability. By optimizing the efficiency of your motor-driven systems, you can increase productivity while saving significant amounts of energy and money.

  17. Selected Bibliography on Electric Motor Repair | Department of Energy

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

    Selected Bibliography on Electric Motor Repair Selected Bibliography on Electric Motor Repair The following series of repair documents related to electric motors were produced by the U.S. Department of Energy's Advanced Manufacturing Office (formerly the Office of Industrial Technologies) with input from trade associations, consulting companies, manufacturers, non-profit operations, and others. PDF icon Selected Bibliography on Electric Motor Repair (November 1999) More Documents &

  18. Pulp and Paper Mills: Profiting from Efficient Motor System Use |

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

    Department of Energy Pulp and Paper Mills: Profiting from Efficient Motor System Use Pulp and Paper Mills: Profiting from Efficient Motor System Use This 2-page fact sheet describes The Paper and Allied Products Industry spending to operate electric motor systems and opportunities to reduce these costs. PDF icon Pulp and Paper Mills: Profiting from Efficient Motor System Use (January 1999) More Documents & Publications Bandwidth Study U.S. Pulp and Paper Manufacturing United States

  19. Motor Packaging with Consideration of Electromagnetic and Material...

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

    More Documents & Publications Motor Packaging with Consideration of Electromagnetic and Material Characteristics Alnico and Ferrite Hybrid Excitation Electric Machines Wireless ...

  20. Selected Bibliography on Electric Motor Repair | Department of Energy

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

    Selected Bibliography on Electric Motor Repair Selected Bibliography on Electric Motor Repair The following series of repair documents related to electric motors were produced by the U.S. Department of Energy's Advanced Manufacturing Office (formerly the Office of Industrial Technologies) with input from trade associations, consulting companies, manufacturers, non-profit operations, and others. PDF icon Selected Bibliography on Electric Motor Repair (November 1999) More Documents &

  1. Electric Motors and Critical Materials | Department of Energy

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

    Motors and Critical Materials Electric Motors and Critical Materials Presentation given at the EV Everywhere Grand Challenge Â… Electric Drive (Power Electronics and Electric Machines) Workshop on July 24, 2012 held at the Doubletree O'Hare, Chicago, IL. PDF icon 7b_electric_motors-and_critical_materials_ed.pdf More Documents & Publications EV Everywhere Workshop: Power Electronics and Thermal Management Breakout Session Report EV Everywhere Workshop: Electric Motors and Critical Materials

  2. Motor Energy Savings Potential Report | Department of Energy

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

    Motor Energy Savings Potential Report Motor Energy Savings Potential Report This report describes the current state of motor technology and estimates opportunities for energy savings through application of more advanced technologies in a variety of residential and commercial end uses. The objectives of this report were to characterize the state and type of motor technologies used in residential and commercial appliances and equipment and to identify opportunities to reduce the energy consumption

  3. Continuous Energy Improvement in Motor Driven Systems - A Guidebook for

    Office of Environmental Management (EM)

    Industry | Department of Energy Continuous Energy Improvement in Motor Driven Systems - A Guidebook for Industry Continuous Energy Improvement in Motor Driven Systems - A Guidebook for Industry This guidebook provides a step-by-step approach to developing a motor system energy-improvement action plan. An action plan includes which motors should be repaired or replaced with higher efficiency models, recommendations on maintaining a spares inventory, and discussion of improvements in

  4. Vehicle Technologies Office: Electric Motors Research and Development |

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

    Department of Energy Vehicle Technologies Office: Electric Motors Research and Development Vehicle Technologies Office: Electric Motors Research and Development To reach the EV Everywhere Grand Challenge goal, the Vehicle Technologies Office (VTO) is supporting research and development (R&D) to improve motors in hybrid and plug-in electric vehicles, with a particular focus on reducing the use of rare earth materials currently used for permanent magnet-based motors. In an electric drive

  5. Simple cost model for EV traction motors

    SciTech Connect (OSTI)

    Cuenca, R.M.

    1995-02-01

    A simple cost model has been developed that allows the calculation of the OEM cost of electric traction motors of three different types, normalized as a function of power in order to accommodate different power and size. The model includes enough information on the various elements integrated in the motors to allow analysis of individual components and to factor-in the effects of changes in commodities prices. A scalable cost model for each of the main components of an electric vehicle (EV) is a useful tool that can have direct application in computer simulation or in parametric studies. For the cost model to have wide usefulness, it needs to be valid for a range of values of some parameter that determines the magnitude or size of the component. For instance, in the case of batteries, size may be determined by energy capacity, usually expressed in kilowatt-hours (kWh), while in the case of traction motors, size is better determined by rated power, usually expressed in kilowatts (kW). The simplest case is when the cost of the component in question is a direct function of its size; then cost is simply the product of its specific cost ($/unit size) and the number of units (size) in the vehicle in question. Batteries usually fall in this category (cost = energy capacity x $/kWh). But cost is not always linear with size or magnitude; motors (and controllers), for instance, become relatively less expensive as power rating increases. Traction motors, one of the main components for EV powertrains are examined in this paper, and a simplified cost model is developed for the three most popular design variations.

  6. EERE-2010-BT-STD-0027 Ex Parte Letter NEMA Motor Training re...

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

    0-BT-STD-0027 Ex Parte Letter NEMA Motor Training re DOE Motors Rule 15 July 2013. EERE-2010-BT-STD-0027 Ex Parte Letter NEMA Motor Training re DOE Motors Rule 15 July 2013. This...

  7. Demodulation circuit for AC motor current spectral analysis

    DOE Patents [OSTI]

    Hendrix, Donald E. (Oak Ridge, TN); Smith, Stephen F. (Knoxville, TN)

    1990-12-18

    A motor current analysis method for the remote, noninvasive inspection of electric motor-operated systems. Synchronous amplitude demodulation and phase demodulation circuits are used singly and in combination along with a frequency analyzer to produce improved spectral analysis of load-induced frequencies present in the electric current flowing in a motor-driven system.

  8. Reducing current reversal time in electric motor control

    DOE Patents [OSTI]

    Bredemann, Michael V

    2014-11-04

    The time required to reverse current flow in an electric motor is reduced by exploiting inductive current that persists in the motor when power is temporarily removed. Energy associated with this inductive current is used to initiate reverse current flow in the motor.

  9. Advanced Variable Speed Air-Source Integrated Heat Pump | Department...

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

    Pump Advanced Variable Speed Air-Source Integrated Heat Pump Advanced variable-speed Air Source Integrated Heat Pump prototype system and field test site near Knoxville, TN Credit: ...

  10. Performance of a High Speed Indirect Injection Diesel Engine...

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

    a High Speed Indirect Injection Diesel Engine with Poultry Fat Bio-Diesel Performance of a High Speed Indirect Injection Diesel Engine with Poultry Fat Bio-Diesel Poster presented ...

  11. Software speeds detection of diseases and cancer-treatment targets

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Software speeds detection of diseases Software speeds detection of diseases and cancer-treatment targets The Lab has released an updated version of software that is now capable of...

  12. tomoRecon : High-speed tomography reconstruction on workstations...

    Office of Scientific and Technical Information (OSTI)

    tomoRecon : High-speed tomography reconstruction on workstations using multi-threading Citation Details In-Document Search Title: tomoRecon : High-speed tomography reconstruction ...

  13. File:CV WindSpeed.pdf | Open Energy Information

    Open Energy Info (EERE)

    CV WindSpeed.pdf Jump to: navigation, search File File history File usage Cape Verde-Map Summarizing Average Wind Speed (ms) Size of this preview: 776 600 pixels. Full...

  14. Adjustable Speed Pumping Applications - Pumping Systems Tip Sheet #11

    SciTech Connect (OSTI)

    2007-01-01

    This two-page tip sheet provides practical tips on application of Adjustable Speed Drives in industrial settings.

  15. Variable Speed Pumping: A Guide to Successful Applications; Executive Summary

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

    VARIABLE SPEED DRIVES A WAY TO LOWER LIFE CYCLE COSTS A GUIDE TO SUCCESSFUL APPLICATIONS A GUIDE TO SUCCESSFUL APPLICATIONS VARIABLE SPEED PUMPING VARIABLE SPEED PUMPING EXECUTIVE SUMMARY U.S. Department of Energy Energy Efficiency and Renewable Energy Industrial Technologies Program uropump VARIABLE SPEED DRIVES A WAY TO LOWER LIFE CYCLE COSTS Bringing you a prosperous future where energy is clean, abundant, reliable, and affordable Table of Contents Introduction . . . . . . . . . . . . . . . .

  16. The unstable behavior of low and high-speed compressors

    SciTech Connect (OSTI)

    Day, I.J. . Whittle Lab.); Freeman, C. )

    1994-04-01

    By far the greater part of the understanding about stall and surge in axial compressors comes from work on low-speed laboratory machines. As a general rule, these machines do not model the compressibility effects present in high-speed compressors and therefore doubt has always existed about the application of low-speed results to high-speed machines. In recent years interest in active control has led to a number of studies of compressor stability in engine-type compressors. The instrumentation used in these experiments has been sufficiently detailed that, for the first time, adequate data are available to make direct comparisons between high-speed and low-speed compressors. This paper presents new data from an eight-stage fixed geometry engine compressor and compares then with low-speed laboratory data. The results show remarkable similarities in both the stalling and surging behavior of the two machines, particularly when the engine compressor is run at intermediate speeds. The engine results also show that, as in the laboratory tests, surge is precipitated by the onset of rotating stall. This is true even at very high speeds where it had previously been thought that surge might be the result of a blast wave moving through the compressor. This paper therefore contains new information about high-speed compressors and confirms that low-speed testing is an effective means of obtaining insight into the behavior of high-speed machines.

  17. Lensless magneto-optic speed sensor

    DOE Patents [OSTI]

    Veeser, L.R.; Forman, P.R.; Rodriguez, P.J.

    1998-02-17

    Lensless magneto-optic speed sensor is disclosed. The construction of a viable Faraday sensor has been achieved. Multimode fiber bundles are used to collect the light. If coupled directly into a 100 or 200 {micro}m core fiber, light from a light emitting diode (LED) is sufficient to operate the sensor. In addition, LEDs ensure that no birefringence effects in the input fiber are possible, as the output from such light sources have random polarization. No lens is required since the large diameter optical fibers and thin crystals of materials having high Verdet constants (such as iron garnets) employed permit the collection of a substantial quantity of light. No coupler is required. The maximum amount of light which could reach a detector using a coupler is 25%, while the measured throughput of the fiber-optic bundle without a coupler is about 42%. All of the elements employed in the present sensor are planar, and no particular orientation of these elements is required. The present sensor operates over a wide range of distances from magnetic field sources, and observed signals are large. When a tone wheel is utilized, the signals are independent of wheel speed, and the modulation is observed to be about 75%. No sensitivity to bends in the input or output optical fiber leads was observed. Reliable operation was achieved down to zero frequency, or no wheel rotation. 5 figs.

  18. Lensless Magneto-optic speed sensor

    DOE Patents [OSTI]

    Veeser, Lynn R. (Los Alamos, NM); Forman, Peter R. (Los Alamos, NM); Rodriguez, Patrick J. (Santa Fe, NM)

    1998-01-01

    Lensless magneto-optic speed sensor. The construction of a viable Faraday sensor has been achieved. Multimode fiber bundles are used to collect the light. If coupled directly into a 100 or 200 .mu.m core fiber, light from a light emitting diode (LED) is sufficient to operate the sensor. In addition, LEDs ensure that no birefringence effects in the input fiber are possible, as the output from such light sources have random polarization. No lens is required since the large diameter optical fibers and thin crystals of materials having high Verdet constants (such as iron garnets) employed permit the collection of a substantial quantity of light. No coupler is required. The maximum amount of light which could reach a detector using a coupler is 25%, while the measured throughput of the fiber-optic bundle without a coupler is about 42%. All of the elements employed in the present sensor are planar, and no particular orientation of these elements is required. The present sensor operates over a wide range of distances from magnetic field sources, and observed signals are large. When a tone wheel is utilized, the signals are independent of wheel speed, and the modulation is observed to be about 75%. No sensitivity to bends in the input or output optical fiber leads was observed. Reliable operation was achieved down to zero frequency, or no wheel rotation.

  19. United States Industrial Electric Motor Systems Market Opportunities Assessment

    Broader source: Energy.gov [DOE]

    The objectives of the Market Assessment were to: Develop a detailed profile of the stock of motor-driven equipment in U.S. industrial facilities; Characterize and estimate the magnitude of opportunities to improve the energy efficiency of industrial motor systems; Develop a profile of motor system purchase and maintenance practices; Develop and implement a procedure to update the detailed motor profile on a regular basis using readily available market information; and, Develop methods to estimate the energy savings and market effects attributable to the Motor Challenge Program.

  20. Fuel-based motor vehicle emission inventory

    SciTech Connect (OSTI)

    Singer, B.C.; Harley, R.A.

    1996-06-01

    A fuel-based methodology for calculating motor vehicle emission inventories is presented. In the fuel-based method, emission factors are normalized to fuel consumption and expressed as grams of pollutant emitted per gallon of gasoline burned. Fleet-average emission factors are calculated from the measured on-road emissions of a large, random sample of vehicles. Using this method, a fuel-based motor vehicle CO inventory was calculated for the South Coast Air Basin in California for summer 1991. Emission factors were calculated from remote sensing measurements of more than 70,000 in-use vehicles. Results of the study are presented and a conclusion is provided. 40 refs., 4 figs., 6 tabs.

  1. Unique Lanthide-Free Motor Construction

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

    Unique Lanthanide-Free Motor Construction Josh Ley, Principal Investigator Jon Lutz, Presenter Alan Gilbert, Program Manager UQM Technologies, Inc. April 21, 2014 APE044 This presentation does not contain any proprietary, confidential, or otherwise restricted information Overview Timeline Project start date: 10/01/2011 Project end date: 10/31/2015 Percent complete: 60% Budget Total project funding - $2,667K DOE Share - $889K UQM Share Funding received in FY13: $765K Funding for FY14: $806K

  2. Extend the Operating Life of Your Motor

    Broader source: Energy.gov [DOE]

    Certain components of motors degrade with time and operating stress. Electrical insulation weakens over time with exposure to voltage unbalance, over and undervoltage, voltage disturbances, and temperature. Contact between moving surfaces causes wear. Wear is affected by dirt, moisture, and corrosive fumes and is greatly accelerated when lubricant is misapplied, becomes overheated or contaminated, or is not replaced at regular intervals. When any components are degraded beyond the point of economical repair or replacement, the motor’s economic life ends.

  3. Slow speed object detection for haul trucks

    SciTech Connect (OSTI)

    2009-09-15

    Caterpillar integrates radar technology with its current camera based system. Caterpillar has developed the Integrated Object Detection System, a slow speed object detection system for mining haul trucks. Object detection is a system that aids the truck operator's awareness of their surroundings. The system consists of a color touch screen display along with medium- and short-range radar as well as cameras, harnesses and mounting hardware. It is integrated into the truck's Work Area Vision System (WAVS). After field testing in 2007, system commercialization began in 2008. Prototype systems are in operation in Australia, Utah and Arizona and the Integrated Object Detection System will be available in the fourth quarter of 2009 and on production trucks 785C, 789C, 793D and 797B. The article is adapted from a presentation by Mark Richards of Caterpillar to the Haulage & Loading 2009 conference, May, held in Phoenix, AZ. 1 fig., 5 photos.

  4. Merging of high speed argon plasma jets

    SciTech Connect (OSTI)

    Case, A.; Messer, S.; Brockington, S.; Wu, L.; Witherspoon, F. D.; Elton, R.

    2013-01-15

    Formation of an imploding plasma liner for the plasma liner experiment (PLX) requires individual plasma jets to merge into a quasi-spherical shell of plasma converging on the origin. Understanding dynamics of the merging process requires knowledge of the plasma phenomena involved. We present results from the study of the merging of three plasma jets in three dimensional geometry. The experiments were performed using HyperV Technologies Corp. 1 cm Minirailguns with a preionized argon plasma armature. The vacuum chamber partially reproduces the port geometry of the PLX chamber. Diagnostics include fast imaging, spectroscopy, interferometry, fast pressure probes, B-dot probes, and high speed spatially resolved photodiodes, permitting measurements of plasma density, temperature, velocity, stagnation pressure, magnetic field, and density gradients. These experimental results are compared with simulation results from the LSP 3D hybrid PIC code.

  5. Photodetector having high speed and sensitivity

    DOE Patents [OSTI]

    Morse, Jeffrey D. (Martinez, CA); Mariella, Jr., Raymond P. (Danville, CA)

    1991-01-01

    The present invention provides a photodetector having an advantageous combination of sensitivity and speed; it has a high sensitivity while retaining high speed. In a preferred embodiment, visible light is detected, but in some embodiments, x-rays can be detected, and in other embodiments infrared can be detected. The present invention comprises a photodetector having an active layer, and a recombination layer. The active layer has a surface exposed to light to be detected, and comprises a semiconductor, having a bandgap graded so that carriers formed due to interaction of the active layer with the incident radiation tend to be swept away from the exposed surface. The graded semiconductor material in the active layer preferably comprises Al.sub.1-x Ga.sub.x As. An additional sub-layer of graded In.sub.1-y Ga.sub.y As may be included between the Al.sub.1-x Ga.sub.x As layer and the recombination layer. The recombination layer comprises a semiconductor material having a short recombination time such as a defective GaAs layer grown in a low temperature process. The recombination layer is positioned adjacent to the active layer so that carriers from the active layer tend to be swept into the recombination layer. In an embodiment, the photodetector may comprise one or more additional layers stacked below the active and recombination layers. These additional layers may include another active layer and another recombination layer to absorb radiation not absorbed while passing through the first layers. A photodetector having a stacked configuration may have enhanced sensitivity and responsiveness at selected wavelengths such as infrared.

  6. High Speed/ Low Effluent Process for Ethanol

    SciTech Connect (OSTI)

    M. Clark Dale

    2006-10-30

    n this project, BPI demonstrated a new ethanol fermentation technology, termed the High Speed/ Low Effluent (HS/LE) process on both lab and large pilot scale as it would apply to wet mill and/or dry mill corn ethanol production. The HS/LE process allows very rapid fermentations, with 18 to 22% sugar syrups converted to 9 to 11% ethanol ‘beers’ in 6 to 12 hours using either a ‘consecutive batch’ or ‘continuous cascade’ implementation. This represents a 5 to 8X increase in fermentation speeds over conventional 72 hour batch fermentations which are the norm in the fuel ethanol industry today. The ‘consecutive batch’ technology was demonstrated on a large pilot scale (4,800 L) in a dry mill corn ethanol plant near Cedar Rapids, IA (Xethanol Biofuels). The pilot demonstrated that 12 hour fermentations can be accomplished on an industrial scale in a non-sterile industrial environment. Other objectives met in this project included development of a Low Energy (LE) Distillation process which reduces the energy requirements for distillation from about 14,000 BTU/gal steam ($0.126/gal with natural gas @ $9.00 MCF) to as low as 0.40 KW/gal electrical requirements ($0.022/gal with electricity @ $0.055/KWH). BPI also worked on the development of processes that would allow application of the HS/LE fermentation process to dry mill ethanol plants. A High-Value Corn ethanol plant concept was developed to produce 1) corn germ/oil, 2) corn bran, 3) ethanol, 4) zein protein, and 5) nutritional protein, giving multiple higher value products from the incoming corn stream.

  7. Efficient, High-Torque Electric Vehicle Motor: Advanced Electric Vehicle Motors with Low or No Rare Earth Content

    SciTech Connect (OSTI)

    2012-01-01

    REACT Project: QM Power will develop a new type of electric motor with the potential to efficiently power future generations of EVs without the use of rare-earth-based magnets. Many of today’s EV motors use rare earth magnets to efficiently provide torque to the wheels. QM Power’s motors would contain magnets that use no rare earth minerals, are light and compact, and can deliver more power with greater efficiency and at reduced cost. Key innovations in this project include a new motor design with iron-based magnetic materials, a new motor control technique, and advanced manufacturing techniques that substantially reduce the cost of the motor. The ultimate goal of this project is to create a cost-effective EV motor that offers the rough peak equivalent of 270 horsepower.

  8. Method and apparatus for generating motor current spectra to enhance motor system fault detection

    DOE Patents [OSTI]

    Linehan, Daniel J.; Bunch, Stanley L.; Lyster, Carl T.

    1995-01-01

    A method and circuitry for sampling periodic amplitude modulations in a nonstationary periodic carrier wave to determine frequencies in the amplitude modulations. The method and circuit are described in terms of an improved motor current signature analysis. The method insures that the sampled data set contains an exact whole number of carrier wave cycles by defining the rate at which samples of motor current data are collected. The circuitry insures that a sampled data set containing stationary carrier waves is recreated from the analog motor current signal containing nonstationary carrier waves by conditioning the actual sampling rate to adjust with the frequency variations in the carrier wave. After the sampled data is transformed to the frequency domain via the Discrete Fourier Transform, the frequency distribution in the discrete spectra of those components due to the carrier wave and its harmonics will be minimized so that signals of interest are more easily analyzed.

  9. Method and apparatus for generating motor current spectra to enhance motor system fault detection

    DOE Patents [OSTI]

    Linehan, D.J.; Bunch, S.L.; Lyster, C.T.

    1995-10-24

    A method and circuitry are disclosed for sampling periodic amplitude modulations in a nonstationary periodic carrier wave to determine frequencies in the amplitude modulations. The method and circuit are described in terms of an improved motor current signature analysis. The method insures that the sampled data set contains an exact whole number of carrier wave cycles by defining the rate at which samples of motor current data are collected. The circuitry insures that a sampled data set containing stationary carrier waves is recreated from the analog motor current signal containing nonstationary carrier waves by conditioning the actual sampling rate to adjust with the frequency variations in the carrier wave. After the sampled data is transformed to the frequency domain via the Discrete Fourier Transform, the frequency distribution in the discrete spectra of those components due to the carrier wave and its harmonics will be minimized so that signals of interest are more easily analyzed. 29 figs.

  10. Method for controlling a motor vehicle powertrain

    DOE Patents [OSTI]

    Burba, J.C.; Landman, R.G.; Patil, P.B.; Reitz, G.A.

    1990-05-22

    A multiple forward speed automatic transmission produces its lowest forward speed ratio when a hydraulic clutch and hydraulic brake are disengaged and a one-way clutch connects a ring gear to the transmission casing. Second forward speed ratio results when the hydraulic clutch is engaged to connect the ring gear to the planetary carrier of a second gear set. Reverse drive and regenerative operation result when an hydraulic brake fixes the planetary and the direction of power flow is reversed. Various sensors produce signals representing the position of the gear selector lever operated manually by the vehicle operator, the speed of the power source, the state of the ignition key, and the rate of release of an accelerator pedal. A control algorithm produces input data representing a commanded upshift, a commanded downshift and a torque command and various constant torque signals. A microprocessor processes the input and produces a response to them in accordance with the execution of a control algorithm. Output or response signals cause selective engagement and disengagement of the clutch and brake to produce the forward drive, reverse and regenerative operation of the transmission. 7 figs.

  11. Method for controlling a motor vehicle powertrain

    DOE Patents [OSTI]

    Burba, Joseph C. (Ypsilanti, MI); Landman, Ronald G. (Ypsilanti, MI); Patil, Prabhakar B. (Detroit, MI); Reitz, Graydon A. (Farmington Hills, MI)

    1990-01-01

    A multiple forward speed automatic transmission produces its lowest forward speed ratio when a hydraulic clutch and hydraulic brake are disengaged and a one-way clutch connects a ring gear to the transmission casing. Second forward speed ratio results when the hydraulic clutch is engaged to connect the ring gear to the planetary carrier of a second gear set. Reverse drive and regenerative operation result when an hydraulic brake fixes the planetary and the direction of power flow is reversed. Various sensors produce signals representing the position of the gear selector lever operated manually by the vehicle operator, the speed of the power source, the state of the ignition key, and the rate of release of an accelerator pedal. A control algorithm produces input data representing a commanded upshift, a commanded downshift and a torque command and various constant torque signals. A microprocessor processes the input and produces a response to them in accordance with the execution of a control algorithm. Output or response signals cause selective engagement and disengagement of the clutch and brake to produce the forward drive, reverse and regenerative operation of the transmission.

  12. Save Energy Now in Your Motor-Driven Systems | Department of Energy

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

    Motor-Driven Systems Save Energy Now in Your Motor-Driven Systems This fact sheet describes how manufacturing plants can save energy and money by making energy efficiency improvements to their industrial motor-driven systems. PDF icon Save Energy Now in Your Motor-Driven Systems (January 2006) More Documents & Publications MotorMaster+ Software Tool Brochure MotorMaster+ Fact Sheet MotorMaster+ International Fact Sheet

  13. Motor torque compensation of an induction electric motor by adjusting a slip command during periods of supposed change in motor temperature

    DOE Patents [OSTI]

    Kelledes, William L.; St. John, Don K.

    1992-01-01

    The present invention maintains constant torque in an inverter driven AC induction motor during variations in rotor temperature. It is known that the torque output of a given AC induction motor is dependent upon rotor temperature. At rotor temperatures higher than the nominal operating condition the rotor impedance increases, reducing the rotor current and motor torque. In a similar fashion, the rotor impedance is reduced resulting in increased rotor current and motor torque when the rotor temperature is lower than the nominal operating condition. The present invention monitors the bus current from the DC supply to the inverter and adjusts the slip frequency of the inverter drive to maintain a constant motor torque. This adjustment is based upon whether predetermined conditions implying increased rotor temperature or decreased rotor temperature exist for longer that a predetermined interval of time.

  14. IEMDC - In-Line Electric Motor Driven Compressor

    SciTech Connect (OSTI)

    Michael J. Crowley

    2004-03-31

    This report covers the fifth quarter (01/01/04 to 03/31/04) of the In-Line Electric Motor Driven Compressor (IEMDC) project. Design efforts on the IEMDC continued with compressor efforts focused on performing aerodynamic analyses. These analyses were conducted using computational fluid dynamics. Compressor efforts also entailed developing mechanical designs of components through the use of solid models and working on project deliverables. Electric motor efforts focused on the design of the magnetic bearing system, motor pressure housing, and the motor-compressor interface. The mechanical evaluation of the main interface from both the perspective of the compressor manufacturer and electric motor manufacturer indicates that an acceptable design has been achieved. All mechanical and aerodynamic design efforts have resulted in considerable progress being made towards the completion of the compressor and electric motor design and towards the successful completion of the IEMDC unit.

  15. High Speed Joining of Dissimilar Alloy Aluminum Tailor Welded Blanks |

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

    Department of Energy High Speed Joining of Dissimilar Alloy Aluminum Tailor Welded Blanks High Speed Joining of Dissimilar Alloy Aluminum Tailor Welded Blanks 2013 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting PDF icon lm075_hovanski_2013_o.pdf More Documents & Publications Vehicle Technologies Office Merit Review 2014: High Speed Joining of Dissimilar Alloy Aluminum Tailor Welded Blanks Vehicle Technologies Office

  16. Approach to accurately measuring the speed of optical precursors

    SciTech Connect (OSTI)

    Li Chuanfeng; Zhou Zongquan; Guo Guangcan; Jeong, Heejeong

    2011-10-15

    Precursors can serve as a bound on the speed of information with dispersive medium. We propose a method to identify the speed of optical wave fronts using polarization-based interference in a solid-state device, which can bound the accuracy of the speed of wave fronts to less than 10{sup -4} with conventional experimental conditions. Our proposal may have important implications for optical communications and fast information processing.

  17. Spatial and Temporal Patterns of Global Onshore Wind Speed Distribution

    Office of Scientific and Technical Information (OSTI)

    (Journal Article) | SciTech Connect Spatial and Temporal Patterns of Global Onshore Wind Speed Distribution Citation Details In-Document Search Title: Spatial and Temporal Patterns of Global Onshore Wind Speed Distribution Wind power, a renewable energy source, can play an important role in electrical energy generation. Information regarding wind energy potential is important both for energy related modeling and for decision-making in the policy community. While wind speed datasets with high

  18. Variable Speed Pumping: A Guide to Successful Applications - Executive

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

    Summary | Department of Energy Variable Speed Pumping: A Guide to Successful Applications - Executive Summary Variable Speed Pumping: A Guide to Successful Applications - Executive Summary This document describes the cost and energy savings potential of pumping system applications with variable duty requirements. PDF icon Variable Speed Pumping: A Guide to Successful Applications - Executive Summary (May 2004) More Documents & Publications Energy Conservation Program: Test Procedure for

  19. ARM - Lesson Plans: Observing Wind Speed and Cloudiness

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Observing Wind Speed and Cloudiness Outreach Home Room News Publications Traditional Knowledge Kiosks Barrow, Alaska Tropical Western Pacific Site Tours Contacts Students Study Hall About ARM Global Warming FAQ Just for Fun Meet our Friends Cool Sites Teachers Teachers' Toolbox Lesson Plans Lesson Plans: Observing Wind Speed and Cloudiness Objective The objective is to demonstrate students' skills in observing the atmosphere, specifically in terms of wind speed and cloudiness. Materials Each

  20. Vehicle Technologies Office Merit Review 2014: High Speed Joining of

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

    Dissimilar Alloy Aluminum Tailor Welded Blanks | Department of Energy High Speed Joining of Dissimilar Alloy Aluminum Tailor Welded Blanks Vehicle Technologies Office Merit Review 2014: High Speed Joining of Dissimilar Alloy Aluminum Tailor Welded Blanks Presentation given by Pacific Northwest National Laboratory at 2014 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting about high speed joining of dissimilar alloy aluminum

  1. High speed point derivative microseismic detector

    DOE Patents [OSTI]

    Uhl, J.E.; Warpinski, N.R.; Whetten, E.B.

    1998-06-30

    A high speed microseismic event detector constructed in accordance with the present invention uses a point derivative comb to quickly and accurately detect microseismic events. Compressional and shear waves impinging upon microseismic receiver stations disposed to collect waves are converted into digital data and analyzed using a point derivative comb including assurance of quiet periods prior to declaration of microseismic events. If a sufficient number of quiet periods have passed, the square of a two point derivative of the incoming digital signal is compared to a trip level threshold exceeding the determined noise level to declare a valid trial event. The squaring of the derivative emphasizes the differences between noise and signal, and the valid event is preferably declared when the trip threshold has been exceeded over a temporal comb width to realize a comb over a given time period. Once a trial event has been declared, the event is verified through a spatial comb, which applies the temporal event comb to additional stations. The detector according to the present invention quickly and accurately detects initial compressional waves indicative of a microseismic event which typically exceed the ambient cultural noise level by a small amount, and distinguishes the waves from subsequent larger amplitude shear waves. 9 figs.

  2. High speed point derivative microseismic detector

    DOE Patents [OSTI]

    Uhl, James Eugene (Albuquerque, NM); Warpinski, Norman Raymond (Albuquerque, NM); Whetten, Ernest Blayne (Albuquerque, NM)

    1998-01-01

    A high speed microseismic event detector constructed in accordance with the present invention uses a point derivative comb to quickly and accurately detect microseismic events. Compressional and shear waves impinging upon microseismic receiver stations disposed to collect waves are converted into digital data and analyzed using a point derivative comb including assurance of quiet periods prior to declaration of microseismic events. If a sufficient number of quiet periods have passed, the square of a two point derivative of the incoming digital signal is compared to a trip level threshold exceeding the determined noise level to declare a valid trial event. The squaring of the derivative emphasizes the differences between noise and signal, and the valid event is preferably declared when the trip threshold has been exceeded over a temporal comb width to realize a comb over a given time period. Once a trial event has been declared, the event is verified through a spatial comb, which applies the temporal event comb to additional stations. The detector according to the present invention quickly and accurately detects initial compressional waves indicative of a microseismic event which typically exceed the ambient cultural noise level by a small amount, and distinguishes the waves from subsequent larger amplitude shear waves.

  3. High speed curved position sensitive detector

    DOE Patents [OSTI]

    Hendricks, Robert W. (Montgomery County, VA); Wilson, Jack W. (Knox County, TN)

    1989-01-01

    A high speed curved position sensitive porportional counter detector for use in x-ray diffraction, the detection of 5-20 keV photons and the like. The detector employs a planar anode assembly of a plurality of parallel metallic wires. This anode assembly is supported between two cathode planes, with at least one of these cathode planes having a serpentine resistive path in the form of a meander having legs generally perpendicular to the anode wires. This meander is produced by special microelectronic fabrication techniques whereby the meander "wire" fans outwardly at the cathode ends to produce the curved aspect of the detector, and the legs of the meander are small in cross-section and very closely spaced whereby a spatial resolution of about 50 .mu.m can be achieved. All of the other performance characteristics are about as good or better than conventional position sensitive proportional counter type detectors. Count rates of up to 40,000 counts per second with 0.5 .mu.s shaping time constants are achieved.

  4. High speed exhaust gas recirculation valve

    DOE Patents [OSTI]

    Fensom, Rod (Peterborough, GB); Kidder, David J. (Peterborough, GB)

    2005-01-18

    In order to minimize pollutants such as Nox, internal combustion engines typically include an exhaust gas recirculation (EGR) valve that can be used to redirect a portion of exhaust gases to an intake conduit, such as an intake manifold, so that the redirected exhaust gases will be recycled. It is desirable to have an EGR valve with fast-acting capabilities, and it is also desirable to have the EGR valve take up as little space as possible. An exhaust gas recirculation valve is provided that includes an exhaust passage tube, a valve element pivotally mounted within the exhaust passage tube, a linear actuator; and a gear train. The gear train includes a rack gear operatively connected to the linear actuator, and at least one rotatable gear meshing with the rack gear and operatively connected to the valve element to cause rotation of the valve element upon actuation of the linear actuator. The apparatus provides a highly compact package having a high-speed valve actuation capability.

  5. Enhanced conversion of syngas to liquid motor fuels

    DOE Patents [OSTI]

    Coughlin, Peter K. (Yorktown Heights, NY); Rabo, Jule A. (Armonk, NY)

    1986-01-01

    Synthesis gas comprising carbon monoxide and hydrogen is converted to C.sub.5.sup.+ hydrocarbons suitable for use as liquid motor fuels by contact with a dual catalyst system capable of enhancing the selectivity of said conversion to motor fuel range hydrocarbons and the quality of the resulting motor fuel product. The catalyst composition employs a Fischer-Tropsch catalyst, together with a co-catalyst/support component comprising SAPO silicoaluminophosphate, non-zeolitic molecular sieve catalyst.

  6. Enhanced catalyst for conversion of syngas to liquid motor fuels

    DOE Patents [OSTI]

    Coughlin, Peter K. (Yorktown Heights, NY); Rabo, Jule A. (Armonk, NY)

    1985-01-01

    Synthesis gas comprising carbon monoxide and hydrogen is converted to C.sub.5.sup.+ hydrocarbons suitable for use as liquid motor fuels by contact with a dual catalyst system capable of enhancing the selectivity of said conversion to motor fuel range hydrocarbons and the quality of the resulting motor fuel product. The catalyst composition employs a Fischer-Tropsch catalyst, together with a co-catalyst/support component comprising SAPO silicoaluminophosphate, non-zeolitic molecular sieve catalyst.

  7. Workplace Charging Challenge Partner: American Honda Motor Co., Inc. |

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

    Department of Energy Honda Motor Co., Inc. Workplace Charging Challenge Partner: American Honda Motor Co., Inc. Workplace Charging Challenge Partner: American Honda Motor Co., Inc. Honda is working to minimize the environmental impact of virtually every aspect of their business; from improving the fuel efficiency of Honda products to reducing the impact of corporate operations through adopting renewable energy and eliminating waste-to-landfill at their manufacturing plants to assisting Honda

  8. Workplace Charging Challenge Partner: Ford Motor Company | Department of

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

    Energy Ford Motor Company Workplace Charging Challenge Partner: Ford Motor Company Workplace Charging Challenge Partner: Ford Motor Company Ford's strong commitment to electrification includes six all-new electrified vehicles available in 2013-including three hybrid electric vehicles (HEVs) and three plug-in electric vehicles (PEVs). Workplace charging is consistent with Ford's broader commitment to sustainability. Ford is working to develop an Employee and Visitor Station Installation Plan

  9. Workplace Charging Challenge Partner: General Motors | Department of Energy

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

    General Motors Workplace Charging Challenge Partner: General Motors Workplace Charging Challenge Partner: General Motors GM has installed 269 workplace charging stations (including 74 powered by solar PV) for employees to use at 15 GM U.S. campuses, as well as an additional 400 "private" charging stations for executives and fleet development efforts. The majority of GM's workplace charge spots are located at 5 major sites in southeast Michigan including Detroit (33), Warren (113),

  10. Enhanced catalyst for conversion of syngas to liquid motor fuels

    DOE Patents [OSTI]

    Coughlin, P.K.; Rabo, J.A.

    1985-12-03

    Synthesis gas comprising carbon monoxide and hydrogen is converted to C[sub 5][sup +] hydrocarbons suitable for use as liquid motor fuels by contact with a dual catalyst system capable of enhancing the selectivity of said conversion to motor fuel range hydrocarbons and the quality of the resulting motor fuel product. The catalyst composition employs a Fischer-Tropsch catalyst, together with a co-catalyst/support component comprising a SAPO silicoaluminophosphate, non-zeolitic molecular sieve catalyst.

  11. Magnetic Material for PM Motors | Department of Energy

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

    Magnetic Material for PM Motors Magnetic Material for PM Motors 2009 DOE Hydrogen Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting, May 18-22, 2009 -- Washington D.C. PDF icon pmp_23_anderson.pdf More Documents & Publications Permanent Magnet Development for Automotive Traction Motors Vehicle Technologies Office: 2009 Propulsion Materials R&D Annual Progress Report Iver Anderson, Division of Materials Sciences and Engineering, The Ames Laboratory,

  12. Advanced Power Electronics and Electric Motors R&D

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

    | Vehicle Technologies Program Advanced Power Electronics and Electric Motors R&D Susan Rogers eere.energy.gov 2 | Vehicle Technologies Program CHARTER: Develop APEEM technologies to enable large market penetration of electric drive vehicles. Advanced Power Electronics and Electrical Motors (APEEM) HV Battery (200 - 450 V) DC Torque to Drive Wheels 120 V AC Bi-directional Converter Battery Charger Electric Motor Inverter Accessory Loads DC-DC Converter Technical Targets Traction Drive System

  13. The National Nuclear Security Administration's B61 Spin Rocket Motor

    Energy Savers [EERE]

    Project, IG-0740 | Department of Energy cf Energy's Sandia National Laboratories are refurbishing the Spin Rocket Motor, a 1:rime component of the B61 nuclear weapon system. Both the originai motor produced i2 i906 and the version last produced in 1991 are the subjects of the refurbishment. Rvth motors, which are essentially identical, produce thrust to arm thz weapon. In Deceinber 2001, the National Nuclear Security Administration (NNSA) received Nuclear Weapons Council Standing and Safety

  14. The National Nuclear Security Administration's B61 Spin Rocket Motor

    Energy Savers [EERE]

    Project, IG-0740 | Department of Energy of Energy's Sandia National Laboratories are refurbishing the Spin Rocket Motor, a prime component of the B61 nuclear weapon system. Both the originai motor produced in i966 and the version last produced in 1991 are the subjects of the refurbishment. Both motors, which are essentially identical, produce thrust to arm the weapon. In December 2001, the National Nuclear Security Administration (NNSA) received Nuclear Weapons Council Standing and Safety

  15. Advanced motor driven clamped borehole seismic receiver

    DOE Patents [OSTI]

    Engler, Bruce P. (Sandoval County, NM); Sleefe, Gerard E. (Bernalillo County, NM); Striker, Richard P. (Bernalillo County, NM)

    1993-01-01

    A borehole seismic tool including a borehole clamp which only moves perpendicular to the borehole. The clamp is driven by an electric motor, via a right angle drive. When used as a seismic receiver, the tool has a three part housing, two of which are hermetically sealed. Accelerometers or geophones are mounted in one hermetically sealed part, the electric meter in the other hermetically sealed part, and the clamp and right angle drive in the third part. Preferably the tool includes cable connectors at both ends. Optionally a shear plate can be added to the clamp to extend the range of the tool.

  16. Electric machine for hybrid motor vehicle

    DOE Patents [OSTI]

    Hsu, John Sheungchun (Oak Ridge, TN)

    2007-09-18

    A power system for a motor vehicle having an internal combustion engine and an electric machine is disclosed. The electric machine has a stator, a permanent magnet rotor, an uncluttered rotor spaced from the permanent magnet rotor, and at least one secondary core assembly. The power system also has a gearing arrangement for coupling the internal combustion engine to wheels on the vehicle thereby providing a means for the electric machine to both power assist and brake in relation to the output of the internal combustion engine.

  17. Motor Gasoline Outlook and State MTBE Bans

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Motor Gasoline Outlook and State MTBE Bans Tancred Lidderdale Contents 1. Summary 2. MTBE Supply and Demand 3. Ethanol Supply 4. Gasoline Supply 5. Gasoline Prices A. Long-Term Equilibrium Price Analysis B. Short-Term Price Volatility 6. Conclusion 7. Appendix A. Estimating MTBE Consumption by State 8. Appendix B. MTBE Imports and Exports 9. Appendix C. Glossary of Terms 10. End Notes 11. References 1. Summary The U.S. is beginning the summer 2003 driving season with lower gasoline inventories

  18. High-Speed, Temperature Programmable Gas Chromatography Utilizing...

    Office of Scientific and Technical Information (OSTI)

    High-Speed, Temperature Programmable Gas Chromatography Utilizing a Microfabricated Chip with an Improved Carbon Nanotube Stationary Phase Citation Details In-Document Search...

  19. Exploring the speed and performance of molecular replacement...

    Office of Scientific and Technical Information (OSTI)

    ab initio protein models Citation Details In-Document Search Title: Exploring the speed and performance of molecular replacement with AMPLE using QUARK ab initio protein models Two ...

  20. Probing Fukushima with cosmic rays should help speed cleanup...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Probing Fukushima with cosmic rays Probing Fukushima with cosmic rays should help speed cleanup of damaged plant The initiative could reduce the time required to clean up the ...

  1. Commerce Department to Speed Review of Green Technology Patents...

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

    is designed to speed the development and deployment of green technology, create green jobs, and promote U.S. competitiveness. In particular, the program focuses on...

  2. Advanced Variable Speed Air-Source Integrated Heat Pump 2013...

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

    Pump 2013 Peer Review Advanced Variable Speed Air-Source Integrated Heat Pump 2013 Peer Review Emerging Technologies Project for the 2013 Building Technologies Office's Program ...

  3. Spatial and Temporal Patterns of Global Onshore Wind Speed Distributio...

    Office of Scientific and Technical Information (OSTI)

    Title: Spatial and Temporal Patterns of Global Onshore Wind Speed Distribution Wind power, a renewable energy source, can play an important role in electrical energy generation. ...

  4. High-Speed, Stereoselective Polymerization for Renewable, Bio...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Like This Return to Search High-Speed, Stereoselective Polymerization for Renewable, Bio-Derived Plastics Colorado State University Contact CSU About This Technology...

  5. File:Calabarzon Speed 100m | Open Energy Information

    Open Energy Info (EERE)

    Calabarzon - Republic of the Philippines Wind Speed at 100 meters Sources National Renewable Energy Laboratory Authors Billy Roberts Related Technologies Wind, Wind 100m...

  6. High-Speed Network Enables Industrial Internet | GE Global Research

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Unveils High-Speed Network Infrastructure to Connect Machines, Data and People at Light Speed to the Industrial Internet Click to email this to a friend (Opens in new window) Share on Facebook (Opens in new window) Click to share (Opens in new window) Click to share on LinkedIn (Opens in new window) Click to share on Tumblr (Opens in new window) GE Unveils High-Speed Network Infrastructure to Connect Machines, Data and People at Light Speed to the Industrial Internet New fiber optic network

  7. High-Speed Network Enables Industrial Internet | GE Global Research

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    software scientists and developers to spur high-speed connectivity and access to really big data Disruptive innovation demonstrates industry success in creating viable test beds...

  8. ESnet's Science DMZ Breaks Down Barriers, Speeds up Science

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    ESnet's Science DMZ Breaks Down Barriers, Speeds up Science News & Publications ESnet News Media & Press Publications and Presentations Galleries ESnet Awards and Honors Contact Us...

  9. Software speeds detection of diseases and cancer-treatment targets

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Software speeds detection of diseases and cancer-treatment targets Alumni Link: Opportunities, News and Resources for Former Employees Latest Issue:September 2015 all issues All...

  10. Reduction of Emissions from a High Speed Ferry | Department of...

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

    Reduction of Emissions from a High Speed Ferry 2003 DEER Conference Presentation: West Virginia University PDF icon 2003deerthompson.pdf More Documents & Publications Recent ...

  11. Borehole SASW testing to evaluate log(G{sub max}) - log({sigma}{prime}) relationships in situ

    SciTech Connect (OSTI)

    Kalinski, M.E.; Stokoe, K.H. II; Young, Y.L.; Roesset, J.M.

    1999-07-01

    A new method is being developed for the in-situ measurement of shear wave velocity, V{sub s}, in the soil surrounding a borehole. The method involves the measurement of axially propagating surface waves inside an uncased borehole using the Spectral-Analysis-of-Surface-Waves (SASW) approach. Testing if performed with instrumentation housed inside an inflatable tool. Inflation pressures applied by the tool are used to vary radial stresses in the soil surrounding the borehole. Surface wave velocities over a range of frequencies are measured at each inflation pressure. These measurements are then theoretically modeled so that the variation in V{sub s} (an hence small-strain shear module, G{sub max}) with distance behind the borehole wall is determined at each pressure. The results of field tests with the borehole SASW tool at two sites composed of unsaturated clayey soil are presented. These results are compared with independent field seismic measurements and with laboratory tests on intact specimens using the torsional resonant column to assess the validity of the new field method.

  12. Bent Diamond Crystals and Multilayer Based Optics at the new 5-Station Protein Crystallography Beamline 'Cassiopeia' at MAX-lab

    SciTech Connect (OSTI)

    Mammen, Christian B.; Als-Nielsen, Jens; Ursby, Thomas; Thunnissen, Marjolein

    2004-05-12

    A new 5-station beamline for protein crystallography is being commissioned at the Swedish synchrotron light source MAX-II at Lund University. Of the 2K/{gamma} = 14 mrad horizontal wiggler fan, the central 2 mrad are used and split in three parts. The central 1 mrad will be used for a station optimized for MAD experiments and on each side of the central fan, from 0.5 mrad to 1 mrad, there are two fixed energy stations using different energies of the same part of the beam. These, in total five stations, can be used simultaneously and independently for diffraction data collection. The two upstream monochromators for the side stations are meridionally bent asymmetric diamond(111) crystals in Laue transmission geometry. The monochromators for the downstream side stations are bent Ge(111) crystals in asymmetric Bragg reflection geometry. Curved multilayer mirrors inserted in the monochromatic beams provide focusing in the vertical plane. The first side station is under commissioning, and a preliminary test protein data set has been collected.

  13. Save Energy Now in Your Motor-Driven Systems

    SciTech Connect (OSTI)

    2006-01-01

    This DOE Industrial Technologies Program fact sheet describes how manufacturing plants can save energy and money by making energy efficiency improvements to their industrial motor-driven systems.

  14. Condition monitoring of machinery using motor current signature analysis

    SciTech Connect (OSTI)

    Kryter, R.C.; Haynes, H.D.

    1989-01-01

    Motor current signature analysis (MCSA) is a powerful monitoring tool for motor-driven equipment that provides a nonintrusive means for detecting the presence of mechanical and electrical abnormalities in the motor and the driven equipment, including altered conditions in the process ''downstream'' of the motor-driven equipment. It was developed at the Oak Ridge National Laboratory as a means for determining the effects of aging and service wear systems, but it is applicable to a broad range of machinery. MCSA is based on the recognition that an electric motor (ac or dc) driving a mechanical load acts as an efficient and permanently available transducer by sensing mechanical load variations, large and small, long-term and rapid, and converting them into variations in the induced current generated in the motor windings. These motor current variations are carried by the electrical cables processes as desired. Motor current signatures, obtained in both time and over time to provide early indication of degradation. Successful applications of MCSA technology (patent applied for) include not only motor-operated valves but also pumps of various designs, blowers, and air conditioning systems. Examples are presented briefly, and speculation regarding the applicability of MCSA to a broader range of equipment monitoring and production line testing is also given. 1 ref., 13 figs.

  15. Li ion Motors Corp formerly EV Innovations Inc | Open Energy...

    Open Energy Info (EERE)

    Vegas, Nevada Zip: 89110 Sector: Vehicles Product: Las Vegas - based manufacturer of lithium-powered plug-in vehicles. References: Li-ion Motors Corp (formerly EV Innovations...

  16. Sensor Network for Motor Energy Management | Department of Energy

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

    Remote Sensing Electric Motor Operation Optimizes Maintenance and Energy Efficiency ... and the additional benefits of optimized preventative maintenance and improved uptime. ...

  17. JV between Hybrid Electric and Mullen Motors | Open Energy Information

    Open Energy Info (EERE)

    Name: JV between Hybrid Electric and Mullen Motors Product: Joint Venture to develop a vehicle fitted with hybrid and lithium technologies References: JV between Hybrid Electric...

  18. Motor Packaging with Consideration of Electromagnetic and Material...

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

    More Documents & Publications Alnico and Ferrite Hybrid Excitation Electric Machines Motor Packaging with Consideration of Electromagnetic and Material Characteristics Novel Flux ...

  19. Texas Department of Motor Vehicles | Open Energy Information

    Open Energy Info (EERE)

    Vehicles Name: Texas Department of Motor Vehicles Abbreviation: TxDMV Address: 4000 Jackson Ave. Place: Austin, Texas Zip: 78731 Phone Number: 1-888-368-4689 Website:...

  20. Renewable Motor Fuel Production Capacity Under H.R.4

    Reports and Publications (EIA)

    2002-01-01

    This paper analyzes renewable motor fuel production capacity with the assumption that ethanol will be used to meet the renewable fuels standard.

  1. Next Generation Electric Machines: Megawatt Class Motors FOA Informational Webinar

    Broader source: Energy.gov [DOE]

    The Next Generation Electric Machines: Megawatt Class Motors FOA Informational Webinar will discuss standard procedures regarding the EERE Office and FOA process.

  2. Petroleum Products Table 43. Refiner Motor Gasoline Volumes...

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

    of table. 43. Refiner Motor Gasoline Volumes by Grade, Sales Type, PAD District, and State 262 Energy Information Administration Petroleum Marketing Annual 1997 Table 43....

  3. Petroleum Products Table 43. Refiner Motor Gasoline Volumes...

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

    1995 Table 43. Refiner Motor Gasoline Volumes by Grade, Sales Type, PAD District, and State (Thousand Gallons per Day) - Continued Geographic Area Month Premium All Grades Sales...

  4. Petroleum Products Table 43. Refiner Motor Gasoline Volumes...

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

    2000 Table 43. Refiner Motor Gasoline Volumes by Grade, Sales Type, PAD District, and State (Thousand Gallons per Day) - Continued Geographic Area Month Premium All Grades Sales...

  5. Petroleum Products Table 31. Motor Gasoline Prices by Grade...

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

    Annual 1995 Table 31. Motor Gasoline Prices by Grade, Sales Type, PAD District, and State (Cents per Gallon Excluding Taxes) - Continued Geographic Area Month Premium All...

  6. Petroleum Products Table 31. Motor Gasoline Prices by Grade...

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

    Annual 2000 Table 31. Motor Gasoline Prices by Grade, Sales Type, PAD District, and State (Cents per Gallon Excluding Taxes) - Continued Geographic Area Month Premium All...

  7. Petroleum Products Table 43. Refiner Motor Gasoline Volumes...

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

    of table. 43. Refiner Motor Gasoline Volumes by Grade, Sales Type, PAD District, and State 262 Energy Information Administration Petroleum Marketing Annual 1996 Table 43....

  8. Table 34. Reformulated Motor Gasoline Prices by Grade, Sales...

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

    Information AdministrationPetroleum Marketing Annual 1999 Table 34. Reformulated Motor Gasoline Prices by Grade, Sales Type, PAD District, and Selected States (Cents per...

  9. Table 35. Refiner Motor Gasoline Prices by Grade, Sales Type...

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

    Energy Information Administration Petroleum Marketing Annual 1995 Table 35. Refiner Motor Gasoline Prices by Grade, Sales Type, PAD District, and State (Cents per Gallon...

  10. Table 44. Refiner Motor Gasoline Volumes by Formulation, Sales...

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

    250 Energy Information AdministrationPetroleum Marketing Annual 1999 Table 44. Refiner Motor Gasoline Volumes by Formulation, Sales Type, PAD District, and State (Thousand Gallons...

  11. Table 32. Conventional Motor Gasoline Prices by Grade, Sales...

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

    Information Administration Petroleum Marketing Annual 1995 Table 32. Conventional Motor Gasoline Prices by Grade, Sales Type, PAD District, and State (Cents per Gallon...

  12. Table 44. Refiner Motor Gasoline Volumes by Formulation, Sales...

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

    Energy Information Administration Petroleum Marketing Annual 1995 Table 44. Refiner Motor Gasoline Volumes by Formulation, Sales Type, PAD District, and State (Thousand Gallons...

  13. Table 48. Prime Supplier Sales Volumes of Motor Gasoline by...

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

    Petroleum Marketing Annual 1998 Table 48. Prime Supplier Sales Volumes of Motor Gasoline by Grade, Formulation, PAD District, and State (Thousand Gallons per Day) -...

  14. Table 35. Refiner Motor Gasoline Prices by Grade, Sales Type...

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

    134 Energy Information AdministrationPetroleum Marketing Annual 1998 Table 35. Refiner Motor Gasoline Prices by Grade, Sales Type, PAD District, and State (Cents per Gallon...

  15. Table 35. Refiner Motor Gasoline Prices by Grade, Sales Type...

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

    134 Energy Information AdministrationPetroleum Marketing Annual 1999 Table 35. Refiner Motor Gasoline Prices by Grade, Sales Type, PAD District, and State (Cents per Gallon...

  16. Integration of Novel Flux Coupling Motor and Current Source Inverter...

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

    ape034hsu2011p.pdf More Documents & Publications Integration of Novel Flux Coupling Motor and Current Source Inverter Novel Flux Coupling Machine without Permanent Magnets John...

  17. Table 43. Refiner Motor Gasoline Volumes by Grade, Sales Type...

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

    220 Energy Information AdministrationPetroleum Marketing Annual 1998 Table 43. Refiner Motor Gasoline Volumes by Grade, Sales Type, PAD District, and State (Thousand Gallons per...

  18. Table 33. Oxygenated Motor Gasoline Prices by Grade, Sales Type...

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

    - - - - - - - - - - - - See footnotes at end of table. 33. Oxygenated Motor Gasoline Prices by Grade, Sales Type, PAD District, and State 116 Energy Information...

  19. Table 44. Refiner Motor Gasoline Volumes by Formulation, Sales...

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

    - - - - W W - - - - - - See footnotes at end of table. 44. Refiner Motor Gasoline Volumes by Formulation, Sales Type, PAD District, and State 292 Energy...

  20. Table 48. Prime Supplier Sales Volumes of Motor Gasoline by...

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

    Petroleum Marketing Annual 1999 Table 48. Prime Supplier Sales Volumes of Motor Gasoline by Grade, Formulation, PAD District, and State (Thousand Gallons per Day) -...