Browse Topic: Off-board energy sources

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Identification of Input Force and Contribution for Electric Power UnitUtilizing Virtual Point2024-32-001504/18/2025
In this study, vibration characteristics inside an electric power unit at gravity center where direct measurement is impossible were estimated by using virtual point transformation to consider guideline for effective countermeasures to the structure or generated force characteristics inside the power source. Vibration acceleration, transfer function and the generated force in operation at the gravity center of the electrical power source were obtained by vibration characteristics at around the power source which can be measured directly. In addition, the transfer functions from the gravity center to the power source attachment points on the product were also estimated. And then, the contribution from the gravity center to the power unit attachment point was obtained by multiplying generated force with the transfer function. As results, the obtained total contribution was almost same with the actual measured vibration at the attachment point. Furthermore, the rotational contribution
Kubo, Ryoma, Hara, Kenta, Yoshida, Junji
Technical Paper
bp w revbestPractice204/08/2025
sfg
Best Practice
IAQG-03282025-1 IAQG-03282025-1 (Current)04/02/2025
IAQG-03282025-1
IAQG-1 Standards Committee
Information Report
JMS BP initial productjms_bp_104/01/2025
JMS BP initial product
AESQ Steering Group
Best Practice
TitlebestPractice103/31/2025
Scope
Best Practice
automation test jms - titleSAE-PP-0946501/31/2025
automation test jms - abstact
Rickard, Christopher
Pre-Print Article
SAE TOMORROW TODAY BRIEFS - Power Grid Solutions for EV Charging1349901/28/2025
How do we balance the demands of EV charging with the capabilities of the power grid? The answer lies in coordination between automakers, consumers and utilities. Enter ChargeScape, a software platform that harnesses data analytics and managed EV charging to reward drivers for their flexibility and reduce the total cost of EV ownership. The goal is sustainable, affordable energy from a reliable power grid. To learn more, Roberto Baldwin, Sustainability Editor, SAE Sustainable Mobility Solutions, sat down with Joseph Vellone, CEO of ChargeScape, to discuss the complexities of the power grid and how flexible EV charging can reward consumers and boost EV ownership. For more information on the evolution of sustainability, head on over to sustainablecareers.sae.org. There, you can check out the latest news from CES 2025 including the Honda 0 Series, Toyota's Woven City, and Sony's Afeela 1. We'd love to hear from you. Share your comments, questions and ideas for future topics and guests to
Hineman, Marcie
Podcast
testing author affiliationsSAE-PP-0945801/10/2025
test
SintzADMIn, Jeneane, Gatts, Joshua, GattsCurator, Josh, GattsCurator2, Josh, GattsCurator2, Josh
Pre-Print Article
400Hz High Speed Static Transfer Switch2008-01-287711/11/2024
The objective of this project was to replace electromechanical power line contactors with a Static Transfer Switch (STS) to improve the transfer of electrical power between aircraft generators and decrease required maintenance. The switch requirements include high reliability, lightweight, and high speed (less than 15mS) power transfer. An STS can shorten the bus transfer time to less than the “ride-through” of aircraft electronic loads and therefore have the ability to control and transfer electrical power while maintaining critical mission requirements. The content of this paper and presentation will discuss the initial problem, the research and development approach, design, and initial testing of the STS.
Cooper, Ronald C., Cooper, Evan C.
Journal Article
testing exclusion rulesSAE-PP-0945111/05/2024
testing
SintzADMIn, Jeneane
Pre-Print Article
Effect Analysis of Form Factor on Thermo-Electric Generator Performance2024-26-038601/16/2024
One of the major contributor for the climate change and global warming is the residual thermal energy generated from automobiles as exhaust gases in IC engine powered vehicles and batteries and fuel cell heating in green vehicles. This waste heat or the thermal energy can be converted into useful electric energy using the thermos-electric generator (TEG). TEGs are devices that can generate electricity directly from temperature difference between two surfaces. They are manufactured using semiconductor materials that exhibit Seebeck effect, generating voltage due to temperature gradient across it terminals. These devices are compact, stable and more reliable electric power generators. The main setback of TEG is its low efficiency compared to other power generators. In this paper, form factor of TEG is studied in detail with its effect on figure of merit, for commercial vehicle applications. In addition, bottlenecks in implementing these TEGs in series production is discussed.
Bali, Gaurav, Mutagi, Megha Dharnendra, PONANGI, BABU RAO
Technical Paper
A Novel Approach to Make an Efficient Thermal Management of a Solar Electric Four-Wheeler Through Model-Based System Simulation2024-26-013001/16/2024
The objective of this paper is to determine and design an optimized thermal management system for a solar electric four-wheeler while considering system influence. The major systems that will be analyzed and optimized include the HVAC, solar system, and battery. The HVAC system imposes a challenge to the designers to fulfill the passenger's comfort and to operate it efficiently under a wide range of external loads from solar radiation, ambient temperature & humidity, human metabolic activity, and also other loads like the propulsion system temperature on the cabin. From the literature, it is found that the air conditioning system reduces on average 14% of the total battery capacity whereas the heating system reduces it by 18%, which makes the HVAC system design a crucial aspect to consider for the system influence. The battery car voltage changes significantly to meet the power demand and because of this, the battery system produces a large amount of heat while discharging which will
Karthikeyan, Vikram Raj, Gumma, Muralidhar
Technical Paper
Optimization of Charging Infrastructure for Fleet Customers2024-26-009201/16/2024
In a rush to move towards a sustainable future, the number of electric vehicles has risen significantly in recent years. With this, the need for power to charge those vehicles has also increased. In any electric vehicle fleet location, there could be a large number of vehicles with different arrival and departure times and energy requirements, which might vary every day. Depending on the geographical location, the available solar energy might differ. The electricity costs might change on an hourly basis. This in total can affect the charging costs. In addition, a non-optimal sizing of the energy components could result in an under-sized system, where the energy demands are not met, or it could result in an over-sized system, where the owner has to invest more than required. Based on all the information related to vehicle charging load, electricity charges, energy intensity profile of renewable energy generation like solar and wind, an optimal size of components, operational cost, and
Munirajappa, Chandrashekara, Shrivastava, Himanshu, Prasad P, Shilpa
Technical Paper
Performance Analysis of High gain DC-DC Converter for Solar PV Applications2022-28-049511/18/2022
The conventional energy resources continue to experience a depleting trend particularly with the growing energy demand to support the ongoing automation phase in the industries. Besides the other challenges include environmental issues in the form of global warming and increasing concerns of pollution to the atmosphere. It invites attention to exploring the use of renewable sources and among the many options Solar PV systems draw a greater attention. However, the non-linear nature of the I-V characteristic of the solar cell allows the delivery of the maximum power only at a specific point called Maximum Power Point, which depends on the solar irradiance, cell temperature and load conditions. The immediate requirement relates to improving the efficiency of the Solar PV system and therefore the focus orients to introduce a high gain DC-DC converter interface between the Solar PV and the load, with a purpose to envisage the transfer of power at a high efficiency. The methodology resorts
V, BHUVANESHWARI, Rajendran, R., M, SUBASHINI
Technical Paper
SAE TOMORROW TODAY: What Role Do Electric Utilities Have in the EV Space?1336811/17/2022
As demand for EVs grows, so too does the role of electric utilities. From powering the grid to ensuring the reliability of EV charging stations, the electric utility industry plays a pivotal role in accelerating EV adoption. For more than a century, Duquesne Light Company (DLC) has delivered electricity to more than 600,000 customers in the Pittsburgh region. Currently, there are more than 6,000 EVs in DLC's service territory -- and they expect that number to grow to more than 23,000 by the end of 2025. With this projected growth, DLC is not only providing reliable power, but EV information analysis and incentives like a Community Charging Program and Electric Fleet Advisory Service Program. We sat down with Sarah Olexsak, Senior Manager, Transportation Electrification, to discuss the role of electric utilities and how DLC is supporting EV adoption in Western Pennsylvania.
Hineman, Marcie
Podcast
Immersion Cooling for Power Electronics2022-28-044611/09/2022
The ability to precisely control electrical voltages on a large scale has made possible many efficient, powerful innovations, from high-speed electric trains to wind turbines to electric drive motors for everything from heavy earthmoving equipment to personal electric vehicles (EVs). But the equipment that manages this process — including power inverters, thyristors and variable-speed drives — requires high-performance power electronics cooling. As temperatures rise, the efficiency, reliability, and life spans of these devices drop, and the power electronics inside HEVs and EVs are no exception. Advancements in power electronic thermal management technologies will enable next generation automotive to fulfill increasingly demanding mission objectives. DC-DC converter and inverter systems slated for higher performances, reliable and sustainable applications. Even with very high efficiencies, the components of these systems produce kilowatts of power loss in the form of heat. The current
Sahoo, Pranati
Technical Paper
Reliable Power for Long-Term Lunar Surface OperationsTBMG-4698111/07/2022
null, null
Magazine Article
Liquid Metal Turns Motion into Electricity, Even UnderwaterTBMG-4691311/01/2022
null, null
Magazine Article
Vibration Testing NASA’s X-57 Maxwell Electric AircraftTBMG-4634108/01/2022
It’s not only automobiles that are going electric — airplanes are as well! And, to prove that an aircraft can be electrically powered, NASA has developed the X-57 Maxwell, its first all-electric X-plane. The X-57 airplane, currently in the Mod II configuration, is a modified version of the Italian Tecnam P2006T. In place of the usual gasoline-powered motors, the X-57 has two all-electric motors powered by traction batteries. The X-57 Maxwell project has some lofty goals, including lower energy consumption (the X-57’s motors use one-fifth the energy of a gasoline-powered aircraft), reduced emissions, and lower noise during flight.
Magazine Article
“Development of Autonomous Solar powered RC Aircraft”2022-26-124605/26/2022
In the present-day world due to causing harm to environment and drastic depression in the availability of the non-renewable sources of energy (I.e., petrol, Diesel, Natural gas etc). It’s crucial for us to find alternative energy sources to suit our needs. One of the types of sources which is least used despite its abundance is solar energy. The reasons like “high cost” and “lack of technology” were substantiated in the past to prove its inefficiency. But, recent development in technology and studies have shown the ways of tapping the solar energy and converting it (E.g., electricity, heat etc.) and utilizing it in various applications. Apparently, there is minimal use of solar energy in aviation and RC aircraft fields. The aviation field uses high amount of white petroleum (highly polluting after combustion) and Batteries which are both harmful and expensive. This can pave way to the advent of solar energy which if properly utilized can act as a game changer by increasing the
S, Rakshith
Technical Paper
Nuclear powered air-breathing electric thrusters used in UAV for extra-terrestrial applications2022-26-124205/26/2022
With an interest in space exploration developing at a remarkable rate in the course of the most recent couple of years, it has become a daunting task to explore the different planets because of hostile environmental conditions present on them and here UAVs play a critical role. This paper aims to study and develop Unmanned Aerial Vehicles that run using motors & electric thrusters and uses nuclear fuel Plutonium-238 (238Pu) as their power generation source. The UAV being ideated plans to operate both in earth's atmosphere and extra-terrestrial space. The heat from the decay of 238Pu is extracted by using Multi-Mission Radio Thermoelectric Generator (MMRTGs) using thermocouples thus providing electricity. The idea of utilizing MMRTG in UAVs has been proposed as it works well in both the space vacuum and the planetary atmosphere. The heat energy from the MMRTG can be utilized as a consistent wellspring to keep up with appropriate working temperatures for a UAV and its instruments in cold
Bhurat, Shryas, Shetty, Naman, Das, Shubham
Technical Paper
Energy Scavenging from Passengers for Powering Low-energy Electronics in Aircrafts2022-26-125505/26/2022
With the ever increasing demand for aerial modes of transportation and reduction of different harmful emissions from these modes of transportation has led to demand for more electric modes of powering these aerial vehicles. In addition to that, the aerospace industry is also looking to make the aircrafts more smart and more connected. This involves increased use of more sensors, ICs and many more micro-electronic components. Even though they look small and consume less electricity, the electric battery which is supposed to be used for aircraft propulsion will require to power up these smaller components as well, which will continue to be a concern as the aircrafts begin using more and more of these components. Hence, a solution is needed to reduce the dependency of micro-electronic components or any other aircraft components used within the aircraft on the electric battery to be used for aircraft propulsion. The concept of Energy Harvesting or Energy Scavenging refers to the capturing
Bajpai, Apoorva
Technical Paper
Design of a thermal energy storage panel for reducing the temperature fluctuations in a CubeSat or a NanoSat using a passive thermal cooling system.2022-26-117205/26/2022
The application of CubeSat or a NanoSat for low-orbit data collection has expanded because of their economical cost for development and lightweight structures. Thermal analysis is one of the vital components during the design and configuration procedure of CubeSat or a NanoSat as the thermal loads in orbit can undoubtedly harm the functions of components in the system and therefore the whole framework can be affected. When the satellite travels from the dark side of the planet to the one facing the sun there is a major change in fluctuations of temperature. Due to heat absorption, transfer and emission on one side, the satellite surface presents an asymmetric temperature distribution and causes a change in momentum which can manifest in spinning and non-spinning satellites in different manners which can cause orbital decays in satellites. The purpose of a thermal management system is to maintain the temperatures within each system to their operating range and to minimize the
Mishra, Prem Sangam, Mankar, Suyash, Subudhi, Sudhakar
Technical Paper
Automotive intelligent catalyst that contributes to hydrogen safety for the decommissioning of Fukushima Daiichi2022-01-064803/29/2022
March 2011, the Tohoku-Pacific-Ocean Earthquake and subsequent Tsunami caused insufficient nuclear reactor cooling at the Fukushima Daiichi Nuclear Power Station, resulting in a catastrophe of hydrogen explosion. The development of long-term safe storage technology for high-dose radioactive fuel debris collected by the decommissioning of nuclear power plants is an urgent issue. Inside the storage container, strong radiation from fuel debris decomposes water to generate hydrogen and oxygen. The research and development have been proceeding in order to secure safety by simply placing a catalyst in the container for oxidizing hydrogen and returning it to water. The catalyst is called a Passive Autocatalytic Recombination (PAR), and unlike catalysts for chemical plants, it is required to have robustness that can maintain its activity for more than 30 years in an environment where temperature, humidity, gas concentration, etc. cannot be controlled. Here, it was confirmed that “An
Tanaka, Hirohisa, Masaki, Sayaka, Aotani, Takuro, Inagawa, Kohei, Iwata, Sogo, Aida, Tatsuya, Yamamoto, Tadasuke, Kita, Tomoaki, Ono, Hitomi, Takenaka, Keisuke, Taniguchi, Masashi, Matsumura PhD, Daiju, Reinecke PhD, Ernst-Arndt
Technical Paper
Battery Drain Detection and Prevention Mechanism2022-01-086303/29/2022
The purpose of this model is to prevent the draining of car batteries when not used for several weeks. This model comprises of a voltage monitoring sensor, cut off sensor and solar powered car battery charger. The function of the Voltage sensor is to Constantly Measure and monitor the Battery Voltage. The measured value is then sent to cut off sensor as an input. Based on the battery voltage level input from the voltage monitoring sensor, the cut off sensor takes the necessary action. When the voltage of the battery is above the threshold value, the cut off sensor does not take any action. If the voltage of the battery is low, then the cut off sensor cuts off the power supply from the battery and triggers the solar powered car battery charger to charge the battery. Once the battery is completely charged the charging process is stopped to prevent the damage of the battery. This cycle is repeated to maintain the battery voltage and prevent it from draining completely.
SATYANARAYANAN, Ashwath Narayanan S
Technical Paper
Using Miniaturized Power Modules to Reduce the Weight and Volume of the Power Electronics2022-01-088103/29/2022
New EV’s consume up to 20x more electric power (going from 3kW to over 50kW) which puts significant strain on the power delivery network. Hard switching DC-DC converter topologies result in a hefty increase in conventional power electronics that consume space, increase weight and limit range. Using miniaturized, thermally adept power modules, the power electronics can be reduced significantly and save up to 50% in size and 80% in weight. To meet the immediate and long-term demands of EV power requires innovation and miniaturization of solutions that are flexible, scalable, and re-usable. The ability to convert power between 800/400V and 48 /12 V at high efficiency leveraging fast transients can revolutionize automotive power electronics. A modular approach using fixed ratio converters further reduces size and weight throughout the vehicle by reducing cabling and harness weight. Scalable modules can be added and substituted to create flexible designs that reduce part qualification time
Green, Gregory, Kowalyk, Patrick
Technical Paper
Multi-objective Finite Control Set Model Predictive Control for Interior Permanent Magnet Motors in Electric/Hybrid-Electric Vehicle Applications2022-01-041703/29/2022
The rapid growth of electric and hybrid-electric vehicles (EV/HEV) in the automotive industry has created a need for state-of-the-art technologies to improve their performance, reliability, and cost. EV/HEV powertrains include one or more electric motors to deliver power to the wheels and are essential components in the system. Therefore, it is imperative to develop suitable drive control methodologies that produce the required torque/speed demands and ensure safe and efficient operation under challenging circumstances. Two of the biggest concerns in electric motors and their inverter feeder are thermal cycling and overheating, which lead to component degradation and failures that increase maintenance frequency and reduce the vehicle’s overall lifespan. This study augments the finite control set model predictive control (FCS-MPC) into a multi-objective methodology that includes electric power quality, inverter thermal cycling, and motor thermal efficiency. Suitable lumped-parameter
Badr, Payam R., Ozkan, Gokhan, Hoang, Phuong, Edrington, Christopher S., Parker, Tanner
Technical Paper
The mechanism of spur gear tooth profile deformation due to interference-fit assembly and the resultant effects on transmission error, bending stress, and tip diameter and its sensitivity to gear geometry. 2022-01-075003/29/2022
Gear profile deviation is the difference in gear tooth profile from the ideal involute geometry. There are many causes that result in the deviation. Deflection under load, manufacturing, and thermal effects are some of the well-known causes that have been reported to cause deviation of the gear tooth profile. The profile deviation caused by gear tooth profile deformation due to interference-fit assembly has not been discussed previously. Engine timing gear trains, transmission gearboxes, and wind turbine gearboxes are known to use interference-fit to attach the gear to the rotating shaft. This paper discusses the interference-fit joint design and the mechanism of tooth profile deformation due to the interference-fit assembly in gear trains. A new analytical method to calculate the profile slope deviation change due to interference-assembly of parallel axis spur gears is presented. The effectiveness of the proposed computational algorithm to predict the deformation is demonstrated by
Joshi, Yashodhan, Chowdhury, Sanjib
Technical Paper
115/200 Volt, 400 Hz Aircraft External Electrical Power Connector Contact Maintenance ProceduresAIR4365B (Current)09/30/2021
This SAE Aerospace Information Report (AIR) describes procedures for use in the field to determine if 115/200 Volt, 400 Hz aircraft external electrical power connectors are excessively worn, which may result in the inability of the external power plug to be retained, intermittent electrical performance and arcing.
AGE-3 Aircraft Ground Support Equipment Committee
Information Report
EV System Modelling And Co-simulation With Integrated HVAC And Auxiliary Models2021-26-017209/22/2021
The current simulation models of EV and ICE Vehicles are well known in industry for their use in estimating the fuel economy or Range benefits because of controller calibrations and component sizing. However, there is a gap in understanding the behavior of accessories such as HVAC, power steering and other such auxiliary loads and the energy losses associated with them. Impact of thermal behavior of electronics on vehicle range also needs to be studied in detail. These kinds of studies help OEM and tier 1 manufactures in improving their design concepts significantly with minimum cost and development time. Hence, the focus of this study is on building simulation models of thermal, electrical, traction and control circuits of a typical electric vehicle. These models are then integrated, and analysis is performed to understand vehicle system level performance metrics. Individual models have been built for HVAC and thermal circuit of on EV in AMESim, HV and LV electrical power distribution
Sadaraboina, Moses Vidya Sagar, Joshi, Parth, Negi, Aditya, Zulkefli PhD, Mohd Azrin
Technical Paper
SOLAR POWERED INCABIN EVAPORATIVE COOLING SYSTEM2021-28-014409/15/2021
During summer season, Cabin Temperature of car soaked under the Sun, may rise upto 70 Deg C approx. This makes steering and seats inside the car very hot. At High temperatures hazardous gases are also accumulated inside the cabin. To overcome these problems, the passengers switch ON AC immediately after entering the car, which leads high consumption of fuel. Also doors and windows are to be kept open for some time to throw hot gases out. Also have to wait for getting cooling effect. To eliminate these problems a SOLAR POWERED INCABIN EVAPORATIVE COOLING SYSTEM can be installed in the car. This system uses a solar panel to capture the sunlight and convert the Solar energy into the Electrical energy which is used to recharge the 12V battery, which then gives necessary power for the cooling module which consist of water cooler with fan motor. The cool air is blown inside the car which reduces the temperature in the car cabin. The system is controlled by using a switch device. The
SINGHAL, SUNNY
Technical Paper
Study on the Influence of Mass Flow Rate over a National Advisory Committee for Aeronautics 6321 Airfoil Using Improved Blowing and Suction System for Effective Boundary Layer Control01-14-02-001108/06/2021
The numerical analysis of the three-dimensional (3D) flow over a National Advisory Committee for Aeronautics (NACA) 6321 airfoil to evaluate the mass flow rate by using a novel method Improved Blowing and Suction System (IBSS) to control the boundary layer is presented in this study. Analysis is performed based on 3D Reynolds-Averaged Navier-Stokes (RANS) equation with a K-omega SST solver. The aerodynamic performance of the NACA 6321 is analyzed at a Mach number of 0.10 with three different mass flow rates, namely, 0.08 kg/s, 0.10 kg/s, and 0.12 kg/s. From the study, it is seen that when the mass flow rate decreased, the aerodynamics performance also reduced, and the aerodynamic performance improved with the increase in mass flow rate. Results also show that a mass flow rate of 0.10 kg/s improved the stalling angle of attack (AoA) by 60% and coefficient of lift (CL) by 50%, enabling optimum efficiency of the aircraft wing in all aspects compared to the baseline airfoil model. The mass
Karuppiah, Balaji, Wessley, Jims John
Journal Article
CABLE ASSEMBLY EXTERNAL ELECTRIC POWER, AIRCRAFT 115/200 VOLT, 400 HERTZAS90328A (Current)08/05/2021
AE-8A Elec Wiring and Fiber Optic Interconnect Sys Install
Technical Standard
Hybrid Thermoelectric CompoundTBMG-3958808/01/2021
Thermoelectrics directly convert heat into electricity and power a wide array of items, from NASA’s Perseverance rover currently exploring Mars to travel coolers that chill beverages.
Magazine Article
Bipolar and Unipolar Drives for Stepper Motors: A ComparisonTBMG-3955908/01/2021
A stepper motor is a type of brushless DC motor comprised of connected coils called “phases.” These electromechanical devices are generally driven in open loop without a feedback sensor, with current applied on the phases without knowing the rotor position. The rotor moves into alignment by means of the stator’s magnetic flux, generated by the current flowing in the phases. At each pulse, the current can be supplied to the next phase, allowing incremental rotational movements, or steps.
Magazine Article
Desalination Process Removes Toxic MetalsTBMG-3959608/01/2021
Desalination — the removal of salt — is only one step in the process of producing drinkable water from ocean or wastewater. Either before or after the removal of salt, the water often has to be treated to remove boron, which is toxic to plants, and heavy metals like arsenic and mercury, which are toxic to humans. Often, the process leaves behind a toxic brine that can be difficult to dispose of.
Magazine Article
Stable, Efficient, Anode-Free Sodium BatteryTBMG-3960508/01/2021
The challenges of energy storage — which require the capacity to bank an intermittent and seasonally variable supply of solar energy — have kept the technology from being economically competitive. Researchers have used low-cost materials to create rechargeable batteries that will make energy storage more affordable. These materials could also provide a safer and more environmentally friendly alternative to lithium-ion batteries that currently dominate the market but are slow to charge and have a knack for catching fire.
Magazine Article
Flexible Organic PhotovoltaicsTBMG-3960908/01/2021
Organic solar cells rely on carbon-based materials including polymers — as opposed to hard, inorganic materials like silicon — to capture sunlight and translate it into current. Organics are also thin, lightweight, semi-transparent, and inexpensive. While commercial silicon-based solar cells perform at about 22 percent efficiency, organics top out at around 15 percent.
Magazine Article
SAE TOMORROW TODAY: Soaking Up the Sun: America's First Solar-Powered Town1315607/29/2021
Welcome to Babcock Ranch: the hometown of the future. Powered entirely by 700,000 solar panels across 840 acres of land in sunny Florida, Babcock Ranch is an innovative town that combines everything Americana with the technologies of tomorrow: electric-powered ice cream trucks, city-wide WiFi, expansive public green spaces, and the comfort of being part of a community. Syd Kitson, Chairman and CEO of Kitson & Partners - the founders of Babcock Ranch - joined us to share how he turned his vision for the future into reality - while making it economically viable along the way.
Hineman, Marcie
Podcast
Application Layer - Generator Sets and IndustrialJ1939/75_202107 (Current)07/15/2021
SAE J1939-75 defines the set of data parameters (SPs) and messages (PGs) for information predominantly associated with monitoring and control generators and driven equipment in electric power generation and industrial applications. The data parameters (SPs) and messages (PGs) previously published within this document are published in SAE J1939DA. Applications using the SAE J1939-75 document must refer to SAE J1939DA for the SAE J1939 parameters and messages for monitoring and controlling the power units, e.g., engines and turbines, that power the generators and driven industrial equipment.
Truck Bus Control and Communications Network Committee
Recommended Practice
CONNECTOR, RECEPTACLE, EXTERNAL ELECTRIC POWER, AIRCRAFT, 115/200 VOLT, 400 HERTZAS90362A (Current)06/22/2021
AE-8C1 Connectors Committee
Technical Standard
Systematic Approach to an Improved Electrical Power System Architecture for a Future More Electric Airplane2021-01-003403/02/2021
Commercial transport airplane technology is moving toward a next generation More Electric Airplane (MEA) in order to further improve airplane performance and efficiency. Electricity is seeing increased use for power generation, transmission and energy storage in place of less efficient pneumatics and hydraulics. The MEA is also a technology enabler for new environmentally friendly electrical generation and storage devices such as fuel cells, batteries and super capacitors. Successful use of these new technologies requires systematically analyzing the interface of these technologies with each other, and with other systems that impact overall airplane performance, efficiency, weight and reliability. In this paper, incremental changes in the airplane power system will be analyzed. With each of these changes, the benefits to the electrical power system and the impact that each change has on the airplane will be estimated. These incremental changes and their impact will be incorporated into
Breit, Joseph Sherman
Technical Paper
Improved Energy Management System for Airplane Electrical Power2021-01-000803/02/2021
As commercial transport aircraft progress toward a future More Electric Airplane (MEA) there are numerous opportunities to improve energy management of the electrical power system. Improved energy management of the airplane electrical power system not only has the potential to decrease the weight and improve the efficiency of the system, but also to improve system stability and reliability. This paper analyzes re-architecting of an MEA airplane electrical power system in order to better manage the current electrical loads. It also considers the use of new sources of power generation and energy storage that would enable improved energy management for a new improved MEA such as fuel cells, batteries and super capacitors. The analysis uses data associated with current methods for calculating electrical loads and evaluates how the energy management of those loads can be improved with a better understanding of their usage in various flight phases, their criticality, and their power quality
Breit, Joseph Sherman
Technical Paper
Electric Propulsion ShipTBMG-3853502/01/2021
GE Power Conversion Warwickshire, UK +44 (0) 1788 563 563
Magazine Article
Aircraft Electrical Voltage Level DefinitionsAIR7502 (Current)01/27/2021
The scope of this report will document the various voltage levels and provide a rational for each level as discussed and agreed to in the AE-7 committee.
AE-7C Systems
Information Report
Photonic Wireless System Powers Medical ImplantsTBMG-3834901/01/2021
Medical implants, such as pacemakers, serve various functions in patients and help to improve their quality of life. But to power these devices, re-implanted devices and invasive surgery are often required, which may lead to a risk of surgical complications. In search of a more permanent solution, scientists developed a photonic device that reduces the need for re-implants.
Magazine Article
Generating Renewable Hydrogen Fuel from the SeaTBMG-3835801/01/2021
Researchers have integrated water purification technology into a new proof-of-concept design for a sea water electrolyzer that uses an electric current to split apart the hydrogen and oxygen in water molecules. This new method for “sea water splitting” could make it easier to turn wind and solar energy into a storable and portable fuel.
Magazine Article
Side-Mounted Solar Modules Enhance Energy SustainabilityTBMG-3832901/01/2021
If builders could incorporate solar harvesting into the siding of a building, the amount of energy from the grid that a structure would need may significantly decrease. Researchers have demonstrated the potential of wedge-shaped luminescent solar concentrators (LSCs) that can easily be hung on the side of a building.
Magazine Article
Energy-Harvesting Device Turns Wi-Fi Signals into Usable PowerTBMG-3833401/01/2021
Any device that sends out a Wi-Fi signal also emits terahertz waves — electromagnetic waves with a frequency somewhere between microwaves and infrared light. These high-frequency radiation waves, known as T-rays, are also produced by almost anything that registers a temperature including human bodies and inanimate objects. If harnessed, the concentrated power of terahertz waves could potentially serve as an alternate energy source; however, to date, terahertz waves are wasted energy, as there has been no practical way to capture and convert them into any usable form.
Magazine Article
High-Efficiency Megawatt MotorTBMG-3813712/01/2020
Innovators at NASA Glenn Research Center have designed a High-Efficiency Megawatt Motor (HEMM), a wound-field partially superconducting machine. The HEMM implements a combination of superconducting and non-superconducting elements, along with an integrated cryocooler, to achieve some of the benefits of a superconducting motor without the need for an external cryogenic system.
Magazine Article
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