Monday, January 13, 2014

What are some effective but easy ways people can save energy?

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ksenia





Answer
Monitor your electricity use by buying a Kill-A-Watt or other such monitor.

http://the-gadgeteer.com/review/kill_a_watt_electric_usage_monitor_review

'An average household uses about 4300kWh of electricity each year. This results in emissions of over 2 tonnes of CO2 per household, or ¾ tonne per person - just for domestic electricity supply. In comparison, total CO2 emissions per person in the UK are around 10 tonnes, and emissions per person in India are about 1 tonne. Luckily, it is possible to cut domestic electricity use in half with simple energy efficiency measures.
'This table shows how electricity use is divided up in an average house (excluding electric heating):

Lighting 19%
Cold Appliances 18%
Wet Appliancs 15%
Cooking 15%
Consumer Electronics 19%
ICT (computers, etc) 9%
Other 5%'
(source Centre for Alternative Technology)
http://www.cat.org.uk/information/catinfo.tmpl?command=search&db=catinfo.db&eqSKUdatarq=InfoSheet_SavingElectricity

EASY WAYS to save energy

â Don't use standby on tv or computer.
â Switch off when not in use.
â Use energy efficient lightbulbs.
â Lower you thermostat.
â Install timers.
â Heat only what is needed.
â Turn down the water heater.
â Insulate your property.
â Turn air conditioning and heating down
â Sign up to a green energy supplier.
â Dress appropriately. When itâs cold put on a jumper rather than turn up the heating, when itâs warm take it off again rather than use the air con.
â Wash full loads.
â Wash at lower temperatures.
â Dry washing outside.
â Avoid dishwashers.
â Reduce draughts.

Use rechargeable batteries..
â Donât leave (re)chargers on for longer than is needed
â Only boil the water you need.
â Buy local produce.
â Reduce reuse and recycle - in that order
â Work from home. If possible work from home, it saves time and fuel travelling.
â Eat less meat and dairy products. Modern farming methods produce large quantities of greenhouse gases.
â Shower instead of bath.
â Conserve Water The less water you use the less energy is needed to pump it to your home or office and to deal with the waste at a sewerage treatment works.

â Drive a fuel efficient vehicle, if you have more than one vehicle use the most economical one more often.
â Walk or cycle to work or when taking the kids to schools, if you have to drive consider car sharing.
â Use public transport where possible
â Take a coach or train instead of using domestic flights.
â When replacing your vehicle look at diesel and liquid petroleum gas models.
â Combine multiple journeys into one and do your weekly shopping in a single trip.
â Stagger journeys where possible to avoid rush hour traffic and hold ups.
â Avoid harsh braking, accelerate gently, drive at a steady speed.
â Keep tyres properly inflated.
â Remove bike and ski and roof racks when not in use.
â Carrying unnecessary weight wastes fuel, declutter your vehicle.
â Use the correct gear, use cruise control if your vehicle has it.
â Keep your vehicle regularly serviced.
â Turn the engine off when stopped or waiting.

Source Trevor a climatologist , who used to be Top Answerer in Global Warming.

how do I biuld a chargeable little 70 speed motor to fit on a bicycle?




Ricky naja


I'm trying to use a battery powerd motor thats small enough to fit on a BMX bike


Answer
I would look at already manufatured addon motors for bicycles.In UK theye were originally made around my Grandad's era( im 42 lol) as a bolt-on motor to help you get up hills. During the 70's companies like Puch made something that has peddles and an engine, ( the Maxi- i think) which was suposed to be like a bicycle with an engine, but wieghed alot and so wasnt a pleasant ride, especially in summer, uphill with a defective motor.
Recent years there has been the re-introduction of not only the bolt-on motor but also manufactured 'motorised bicycles' and an electric moped(which you dont need a licence to operate).
I would look at that technology, ideally buy one and dismantle it, learn from it and see if you can improove it.
The problem will be creating enough torque to move you at a reasonable pace, ideally on any surface (uphill,down,flat, gravel) and have a battery that is small yet carries alot of amps. You would also need to look into a charging system i.e solar,dynamo/generator. As running a battery flat constantly is not good for it and depending on you project's efficiancy will dictact how often it will need charging an for how long 8-12hours....which if you plan to use this everyday, will be expensive to charge. Boat batteries can handle being drained fully alot better than standard motor vehicle types, but they are bigger and heavier- so not practical for a bicycle.
I dont understand why you would need 70 gears though??




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