How to save electricity?
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Way2GO:
Huh? Wat constant u talking - d same amount of energy expended in heating up d same quantity of water?
YES
The totally amount of energy required to bring the water to boiling is dependent on the amount of water, NOT the rate of power delivery (power rating). (Assuming no energy losses to surroundings etc..).
Just ask any O level kid.
Or maybe some secondary teachers around can answer that question. -
limlim:
:faint:
Please READ carefully before you jump to conclusion and reply.
OK u win.
I old flower eyes.
Peterch, u also old flower eyes? :evil: -
Way2GO:
No disagreement with that.
Yes, my view is d difference is likely insignificant in $ sense.
But since someone asked.. no harm answering. -
Peace! Peace! Just thinking out aloud….
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the amount of heat loss during the boiling process of the same amount of water at the same starting temperature may be different due to the different kettle size / surface area and power rating as has been explained in the few posts above.
notwithstanding the heat loss to be quantified that caused some differences in energy consumed, it also generated some heat among the different forumers in the above few posts...this heat generated is hard to quantify..... :evil: :evil: -
vk as impressive as ever…
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Calling ksp in house consultant Limlim San!
Ooi, I clean up my fan already (finally!) but hor, still the same leh… The power not that powerful anymore… What else can be the problem? Or just simply wear and tear? -
Imami:
Motor weak ... That is y some ppl rather spend more on reliable brand fan that can last longer.Calling ksp in house consultant Limlim San!
Ooi, I clean up my fan already (finally!) but hor, still the same leh.... The power not that powerful anymore... What else can be the problem? Or just simply wear and tear? -
Imami:
err.. where's your original post ar..?
Ooi, I clean up my fan already (finally!) but hor, still the same leh.... The power not that powerful anymore... What else can be the problem? Or just simply wear and tear?
If got wear and tear.. is it noisier than before? maybe add a bit of WD40 at the bearings? Another possibility is corrosion at the electrical contacts. -
limlim:
This one la, Limlim.Imami:
Talking about fans, can someone help me – not sure if it is my imagination but I think my wall fan is not as effective as before. initially, power 1 is good enough. After two years, power 1 like cannot make it, need power 2. Recently, I realise power 2 also like not good enough… haven’t ‘upgrade’ to power 3 yet, cos I find it too noisy. Is there such thing as deterioration in performance when it comes to fan? Like power 1 cannot make it already?
Do you clean it..? :evil:
Dust, particles build up could introduce friction and making the fan \"less easy to turn\".
Especially for the bearings.
Your fan may draw more power to turn at the same speed, or, draw same power and turn at reduced speed.. due to extra need to overcome friction.. How it works, depends on the circuitry of the fan.. so can't comment..
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