Sentences with phrase «electrical energy when»

This mechanical energy could would then be converted back to electrical energy when the train is ready to leave the station again.

Not exact matches

But when it comes to moving the electrical energy, there are some things that need to be addressed.

For example, when physicists explain the electrical conductivity of metals in terms of the «band structure» of the energy levels of the electrons in a crystal lattice of atoms, to which of the four causes does that correspond?

The window's opacity to visible light and solar energy varies when an electrical current flows between the oxide layers.

When the chemical elements are later combined, electrical energy can be created.

In addition, when stretched to four times its original length, it maintains nearly 98 per cent of the initial ability to store electrical energy, even after 10,000 stretch - and - release cycles.

The new system is also designed to allow a PHEV to use its battery as an energy storage device, enabling the car to hold electrical energy in the battery while the grid has surplus power (during off - peak hours, for example) and contribute its surplus energy back to the grid when the latter needs more power to meet peak demand, Su says.

When electrical power is not available, the rapid milk chiller can cool up to 500 liters of milk using only the thermal energy stored in the battery.

Previously, researchers have produced hydrogen gas in microbial - powered, batterylike fuel cells, but only when they supplemented the energy produced by the bacteria with electrical energy from external sources — such as that obtained from renewable sources or burning fossil fuels, says Bruce Logan, an environmental engineer at Pennsylvania State University, University Park.

When superconducting materials are cooled, they can carry a current with zero electrical resistance without losing any energy.

When energy is added to the material, either by a laser «pump» or as an electrical current, it kicks some of the electrons orbiting the molecules into higher energy states.

Electrical energy is created when the device is compressed by human motion, or mechanical energy.

If your pinwheel were a wind turbine, and spinning counterclockwise turned wind energy into electrical energy, then it would most efficiently produce electricity when wind blows directly into the cups.

The team then monitored the cells» action potential patterns — the «bursts» of electrical energy that cells emit when communicating — and observed how the cells interacted over time.

To salvage some of that energy, the team added a regenerative braking system: when the driver's foot is removed from the accelerator, the electrical connections are reconfigured so that instead of electricity going from the batteries to turn the motor, the motor generates electricity that flows back through the inverter to recharge the batteries.

Using light increases transmission rates and reduces the energy loss caused by heating when an electrical signal is used.

The local electric company performs that service far more efficiently when it burns fossil fuels in its big generators; the car stores only the residual electrical energy in its rechargeable batteries.

These defects were observed by measuring tiny electrical currents created when charges that were frozen in the traps at extremely cold temperatures escape by receiving a jolt of thermal energy as the device is heated, a process called thermally stimulated current.

But when light hits certain materials the energy turns into an electrical current instead, which we can then harness for power.

We can also store the leftover renewable energy in the form of compressed hydrogen for a later use when the electrical demand is higher, or as fuel for vehicles,» Serra adds.

«When needed, the battery can be discharged so that the stored chemical energy is effectively converted to electrical power.»

The team used the key properties of zinc oxide, a material that when squashed or stretched creates a voltage by converting energy from motion into electrical energy, in the form of nanorods.

Like astronomers tweaking images to gain a more detailed glimpse of distant stars, physicists at Brookhaven National Laboratory have found ways to sharpen images of the energy spectra in high - temperature superconductors â $» materials that carry electrical current effortlessly when cooled below a certain temperature.

This flexibility enables the hydrogen in materials to be readily converted between different forms — a property that can be exploited to store electrical energy as chemical energy to be released later when needed.

When the engine is off, the vehicle's electrical system draws energy from the AGM battery to power all electrical loads in the vehicle.

When scraps of steel and brass are anodized using a common household chemical and residential electrical current, the researchers found that the metal surfaces are restructured into nanometer - sized networks of metal oxide that can store and release energy when reacting with a water - based liquid electrolWhen scraps of steel and brass are anodized using a common household chemical and residential electrical current, the researchers found that the metal surfaces are restructured into nanometer - sized networks of metal oxide that can store and release energy when reacting with a water - based liquid electrolwhen reacting with a water - based liquid electrolyte.

Energy flows from the loops when they interact, producing electrical and magnetic «short circuits.»

From the macroscopic standpoint, superconductivity is a property of certain materials that, when cooled below a given temperature, conduct electricity without any energy loss — i.e., with zero electrical resistance.

They are encased in energy fields which are barely visible but reveal themselves when they pass anything electrical — like a car or a streetlamp — which reacts to their presence.

The lithium - ion battery provides the necessary electrical power for the belt - alternator starter, and the battery itself is recharged by the concept car's regenerative braking function: when decelerating, the fuel is shut off and the vehicle's kinetic energy is transformed into electrical energy.

Your vehicle's battery supplies and stores electrical energy from the alternator when the vehicle's engine is running.

It also controls the electric motor, so that kinetic energy is transformed into electrical energy during coasting and when braking.

Regenerative braking captures the kinetic energy when you slow down, converts it to electrical energy, and stores it in the battery.

Using features like intelligent start / stop technology (shuts the engine down at stoplights or when the A / C system demands are low), direct fuel injection, and smart regenerative charging that puts the vehicle's kinetic energy back into the electrical system to reduce fuel demands, the 2014 Range Rover Sport delivers economy numbers of vehicles easily half its horsepower.

Events such as negotiating towns on the way to the destination are taken into account when planning the available electrical energy, and during recuperation and thermal conditioning of the drive components.

For the first time, the turbocharger of the internal combustion engine is linked to an electrical machine, which makes it possible to convert the thermal energy of the exhaust gas flow into electric energy — for instance, when the boost pressure limit has been reached.

When the Insight is coasting or its brakes are applied, and the vehicle is in gear, its electric - assist motor becomes a generator, converting forward momentum into electrical energy, instead of wasting it as heat during conventional braking (vented front disc / rear drum brakes are still the main means of braking).

When in regenerative mode, the propulsion motor converts the kinetic energy of the decelerating vehicle into electrical energy to recharge the battery.

Additionally, when the driver applies the brakes during everyday driving, the A8 converts a large percentage of the braking energy — normally lost in the form of heat — into electrical energy for future use.

The output of the alternator is increased during low engine load conditions, for example when decelerating, with the excess electrical energy stored in the car's battery.

Eco DAS includes Coasting Guide Control (CGC) and Predictive Energy Control (PEC), enabling drivers to maximize fuel mileage by suggesting when to coast or brake, and using or harvesting electrical energy depending on the topography of the road Energy Control (PEC), enabling drivers to maximize fuel mileage by suggesting when to coast or brake, and using or harvesting electrical energy depending on the topography of the road energy depending on the topography of the road ahead.

The newly developed lithium - ion battery pack allows for increased energy density and improved electrical output when compared to similar systems in existing vehicle models.

For example, when driving along the freeway it is possible to protect or even increase the amount of electrical energy stored.

• SAVE ENERGY & WATER: WHEN NOT INSIDE THE ROOM, Management highly discourages guests from leaving electrical appliances turned on.

«When we communicate with a cell tower or Wi - Fi router, so much energy goes to waste,» explained Chi - Chih Chen, research associate professor of electrical and computer engineering.

Knowing which windows to open, and when, to create an air current inside the home can do as much to keep cool as an electrical air conditioner, but without any extra energy inputs.

When power needs to be taken out of the flywheels - because a cloud crosses in front of the sun for example and a solar farm stops producing power for a short while - the motor shifts to generator mode and converts kinetic to electrical energy, feeding it into the grid.

And that did not include the electrical distribution systems necessary for the whole country to take power from this one spot, nor any kind of storage technology for using electricity at night (it was hard to cost one out when no technology exist for storing America's total energy needs for 12 hours).

Also, some of the energy used to overcome inertia and accelerate the vehicle — normally lost when the vehicle is slowed, to aerodynamic forces and rolling resistance as well to the mechanical brakes (as heat)-- may be recaptured as electrical energy if regenerative braking is available (see the discussion of hybrid electric drive trains).

In his paper, «How Green Roofs Partition Water, Energy and Costs in Urban Energy - Air Conditioning Budgets,» Paul S. Mankiewicz PhD of the Gaia Institute illustrated the hidden relationship of water and energy when he asked the question, «Is it more cost - effective to utilize potable water for cooling than electrical air conditioning?&Energy and Costs in Urban Energy - Air Conditioning Budgets,» Paul S. Mankiewicz PhD of the Gaia Institute illustrated the hidden relationship of water and energy when he asked the question, «Is it more cost - effective to utilize potable water for cooling than electrical air conditioning?&Energy - Air Conditioning Budgets,» Paul S. Mankiewicz PhD of the Gaia Institute illustrated the hidden relationship of water and energy when he asked the question, «Is it more cost - effective to utilize potable water for cooling than electrical air conditioning?&energy when he asked the question, «Is it more cost - effective to utilize potable water for cooling than electrical air conditioning?»