The
average
household needs at least a 6000 watts
unit to be able to power up all the appliances in that home.
Lighting
Common
household electricity consumption. for lights per room is 0.1
kWh / h
Incandescent bulbs produce light when an electric current passes through a filament and causes it to glow. Because they are less energy efficient than other light sources, they are best used for task lighting that demands high levels of brightness.
Tungsten-halogen
incandescent
bulbs produce a brighter and whiter light than other incandescent
bulbs. They also have a longer life and provide more light per watt
than standard incandescent bulbs, making them a more efficient
choice.
Fluorescent
bulbs produce
light when an electric arc passes between cathodes to excite mercury
and other gases producing radiant energy, which is then converted to
visible light by a phosphor coating. They use 1/5 to 1/3 as much
electricity as incandescents with comparable lumen ratings and last
up to 20 times longer.
Light
Emitting Diodes (LEDs) produce
light when voltage is applied to negatively charged semiconductors,
causing electrons to combine and create a unit of light (photon). In
simpler terms, an LED is a chemical chip embedded in a plastic
capsule. Because they are small, several LEDs are sometimes combined
to produce a single light bulb. LED lighting in general is more
efficient and longer
Heating
Electric
heating is any process in which electrical
energy
is
converted to heat.
Common applications include space
heating,
cooking,
water
heating
and
industrial processes. An electric heater is an electrical
device
that converts electric current to heat.
The
heating
element
inside
every electric heater is an electrical resistor,
and works on the principle of Joule
heating:
an electric
current
passing
through a resistor will convert that electrical energy into heat
energy. Most modern electric heating devices use nickel-chrome
wire
as the active element.
- An electric water heater or geyser with a 60 gallon (227 liter) tank has a 4 500 W heating element, which at 100% efficiency results in a heating time of about 2.34 hours.
- Electric showers have electric heating elements incorporated into the shower heads to instantly heat the water as it flows through. The power consumption of electric showers in the maximum heating setting is about 5.5 kW for 120 V and 7.5 kW for 220 V. The lower costs with electric showers compared to the higher costs with geysers is due to the time of use: an electric shower uses energy only during the water flow, while a boiler works many times a day to keep a quantity of standing water hot for use throughout the day and night.
- Oven – 3 400 W
- Microwave – 750 W
- Clothes Washer – 2.3kWh each use
- Clothes Dryer – 3.3 kWh each us
Scientists
at the University of Tokyo announced
in
2015
that they had created a material that could store up heat and then
release it on command, with just a little bit of pressure applied.
The material is a ceramic called
stripe-type-lambda-trititanium-pentoxide. It
can release stored heat with the application of pressure. It can also
use light or an electrical current to store energy that can be
released as heat.
Cooling
Refrigeration
is a process of moving heat
from
one location to another. The work
of heat
transport
is traditionally driven by mechanical
work,
but can also be driven by heat, magnetism,
electricity,
laser,
or other means. Refrigeration has many applications, including, but
not limited to: household refrigerators,
industrial freezers,
cryogenics,
and air
conditioning.
- Refrigerator – 4.8 kWh / day
- Deep freezer – 500 W
- Fan – 75 W
Electric
motors and tools
An
electric motor is an electrical
machine
that
converts electrical
energy into mechanical
energy.
The reverse of this would be the conversion of mechanical
energy
into
electrical
energy
and
is done by an
electric
generator.
In normal motoring mode, most electric motors operate through the
interaction between an electric motor's magnetic
field
and
winding
currents
to
generate force within the motor. In certain applications, such as in
the transportation industry with traction
motors,
electric motors can operate in both motoring and generating
or braking
modes
to also produce electrical energy from mechanical energy..
Information,
Entertainment and Communicating
Mobile
phone, Internet and TV are the most sought after services in urban
and rural communities alike and none of them can work without
electricity
While
4 watts are enough to charge a mobile phone, it takes 200
watts to operate a desktop computer
and
about
50
watts for a laptop.
- Laptop – 0.05 kWh / h
- DVD/PS3/Xbox – 100 W
- Flat Screen TV – 0.1 kWh / h
Transportation
An electric vehicle(EV), also referred to as an electric drive vehicle, uses one or more electric motors or traction motors for propulsion. An electric vehicle may be powered through a collector system by electricity from off-vehicle sources, or may be self-contained with a battery or generator to convert fuel to electricity. EVs include road and rail vehicles, surface and underwater vessels, electric aircraft and electrically powered space vehicles.
- Tesla Motors began development in 2004 on the Tesla Roadster, which was first delivered to customers in 2008. Tesla Motors uses laptop -size cells for the battery packs of its electric cars, which are 3 to 4 times cheaper than dedicated electric car battery packs of other auto makers. Dedicated battery packs cost $700–$800 per kilowatt hour, while battery packs using small laptopcells cost about $200.
By
mid-2015 7he following electric cars were on the market:
Electric motorcycle manufacturers include
- Brammo,
- Zero Motorcycles,
- Lightning Motorcycle,
- Energica Motor Company,
- Quantya,
- Electric Motorsport,
- Hollywood Electrics,
- Yo
- Yamaha plans to enter the market shortly with at least two models.
- Spanish company Bultaco intends to enter the electric motorcycle market in 2015.
- Heavyweight Harley Davidson introduced a new prototype electric motorcycle in June 2014.
Electric
scooters: the primary commercial production supplier for worldwide
markets, is
- Z Electric Vehicle.
- The BMW C Evolution electric scooter was released in Germany in May 2014.
- Honda participated in European lease demonstration and driving tests for its electric scooter in 2012 but has not yet announced its availability for sale.
- Terra Motors, a Japanese electric vehicle maker, will begin selling electric scooters in India by 2015.
- Gogoro announced a swappable battery electric scooter at CES 2015.
Bolt Motorbikes is
a San Francisco-based startup that makes electric motorbikes. The
Bolt M-1 is the first Bolt bike off the line. The bike is keyless
and can start with a unique passcode or from your smartphone. The
Bolt app will locate your vehicle and
also
comes with a USB port for plugging in your smartphone while on the
go.
Bolt
bikes start in economy or sport mode, depending on how much power
you want to utilize. Economy mode will speed up to 20 mph, and sport
has a little more power from the start, revving up to 40 mph.
Economy
mode can take the Bolt 50 miles on a single charge and sport mode
will go 35 miles on a charge if you are going an average of 35 mph.
The
Zero S Electric Motorcycle features advanced cell chemistry and battery
management systems that provide greater capacity and range. Not only
does the power pack enable you to go beyond 150 miles, it is
also designed to last the life of the motorcycle. The highly
efficient on board charger minimizes charge time and can work in
parallel with Zero’s scalable off-board charging systems.
Airbus E-Fan has two
electric motors, 32 kW each, driving
a pair of ducted, variable pitch fans positioned toward the center
line of the carbon fiber composite body, which quickly and quietly
get the E-Fan to a take off speed of 110 km/h (68 mph), 160 km/h
cruising speed and a top speed of over 200 km/h. The aircraft also
has an electrically-driven aft main wheel to taxi and assist with
acceleration during take off. Its
29 kWh Li-ion 18650 batteries can be found in the inboard section of
the wings (catering for ventilation and passive cooling) and offer
from 45 minutes to an hour of flight time per charge, with the
design also allowing for battery pack hotswaps. Electrical system
management is undertaken by a full authority digital control to
reduce pilot workload. Much of what the Airbus Group has learned
over the last few years will be incorporated into the "world's
first series production electric planes" – the E-Fan 2.0 and
4.0 aircraft. Work on the new all-electric, battery-powered
two-seater pilot training version
and the four person hybrid electric motor/combustion engine version
will be undertaken by Voltair
SAS,
a wholly-owned subsidiary of Airbus, which will also offer
post-production services.
On June 10 2015,
a NASA astronaut from Italy, Maurizio Cheli, set a world record for
piloting the fully electric SkySpark.
The flight lasted for eight-minute at the World Air Games 2009 in
Turin, Italy. Maurizio Cheli hit a top speed of 155 mph (250 km/h).
That’s a record speed for a 100-percent electrically powered
aircraft.
Surveying
Micro
electric drones are
used for quick and less costly topographic and other surveys.
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