Washington (CNN) -- After three weeks on the ground, Boeing's 787 Dreamliner soon will return to the skies -- but only so engineers can test the plane's troubled electrical and battery systems, the Federal Aviation Administration said Thursday.
The devices do not include electrical wiring or battery replacements, making it a likely candidate for powering remote sensor networks and medical-sensing technologies.
Let's turn it over to the electrical engineers and battery experts who read Engadget on a regular basis so we can sort this out, once and for all!
Each of the relevant muscles has been wired up to the internal box (which is powered by electrical induction from a battery in the external one).
For every additional item that needs electrical power, added battery capacity is needed, and both of those result in added thermal loading, which requires a more robust thermal control system.
Boeing did some of the safety testing on the 787 battery system, but much of the testing was done by a subcontractor, Thales of France, which made the 787's electrical system, and by battery maker GS Yuasa of Japan, according to a previously released NTSB report.
Small flames were noted in one of the two incidents reported when gases escaping from the battery were ignited by an electrical short-circuit in the presence of ambient oxygen, but that was all external to the battery case.
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In place of a rechargeable battery, it may use an ultracapacitor a more expensive component that stores electrical energy in the same way as a battery, but can retain it almost indefinitely and is not worn out by repeated charging and discharging.
Boeing has suggested an electrical insulator that wraps around each battery cell to isolate each cell from each other and the battery case.
That means electrical storage, typically in an electrochemical battery, but capacitors also store and discharge electricity.
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The crank-handle drives a dynamo through a clever transmission system, and the resulting electrical energy goes straight into a rechargeable battery.
Boeing said in a statement that the fire was traced to a battery unit that helps power electrical systems when the engines are idle -- typically while a plane is being serviced or cleaned.
It currently doesn't believe the cause was its ( previously recalled) Lithium-ion battery, exhaust routing or electrical components, having learned that the ignition zone was outside the engine compartment, in front of the driver's side front tire.
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Boeing said the fire was traced to a battery unit that helps to power electrical systems when the engines are idle -- typically while a plane is being serviced or cleaned.
The electricity generated by a micro-wind turbine is transmitted and stored in a battery before being used to drive home electrical appliances such as lights, LCD monitors and TV sets.
The TDI engine charges the battery while driving in order to store enough electrical energy for EV operation later in the journey-for instance, in an urban area.
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The Japanese automaker also designed the battery pack to sense a crash and disable its electrical charge when involved in an accident.
The first socket is used to charge the lithium-ion battery and the second can be used to connect electrical devices such as coolers or camping lights.
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Severinsky's bright idea was to run the electric motor on a high voltage--say, 40 times the 14 volts that is standard for the electrical system in a gasoline car with a 12-volt battery.
When LeMieux was hiking the Appalachian Trail a decade ago, he identified the problem that would become the focus of his work: how to turn the kinetic energy of a hiker into electrical energy that could keep devices charged (and reduce the battery weight he carried for 1, 500 miles).
Electrical energy will be stored in a liquid-cooled lithium-ion battery that can be recharged from a standard household outlet.
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Richard Walsh, a Massport spokesman, said the jet's auxiliary power unit battery, which is housed in a small compartment known as the aft electrical equipment bay, exploded after crews believed the fire was extinguished.
The SMILE Plug includes a 5V Lithium-Ion polymer battery for back-up power, making it ideal for learning environments where electrical power can be inconsistent.
These components are combined with electrical parts that are also "made by Volkswagen, " such as the lithium-ion battery in the center tunnel and the 54-hp front and 114-hp rear electric motors.
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Japanese battery maker GS Yuasa has seen its shares fall 11% since 7 January when an electrical fire broke out on a JAL 787 at Logan International Airport in Boston, although they rebounded 1% on Monday as it became apparent the fault may not have been a pure battery problem.
The battery-operated device is switched on when the diver or surfer enters the water and the electrical current is generated continuously.
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