The most basic trade-off is between HEAT and TIME to boiling. Assume a circular base boiling medium on an average liquefied petroleum gas (LPG) stove, for this is where the question is practically applicable. Well, it might also work for electric stoves.
At a higher heat setting, there will be more fuel consumed per unit time, but the time it will take for the water to boil will be shorter. At a lower heat, less fuel is consumed per unit time, but it will take longer to boil the water.
The desired final comparison is between CONSTANT HEAT and OVERALL FUEL CONSUMPTION (from beginning to heat room-temperature water).
Thank you! :-)
2006-12-27 06:23:28 · 10 answers · asked by neLL n. 2 in Environment
It depends on the effeciency of your fuel and of your heating source. Natural Gas is very clean-burning (meaning that it converts most of its potential energy into heat) but on a gas stove you lose most of the heat of that combustion to the air.
So, to answer the question: consider the rate that you lose heat from water versus from air. Water retains heat much better than air (it also heats much slower) so if you use a less intense flame, one could imagine that more of the heat will actually make it into the water instead of to the air, and you don't have to worry so much about the water cooling down, because water stays warm on its own pretty well.
So the most effecient way would be the way the wastes the least heat, and I would postulate that this would be low heat for a long time (but not so low that the water loses the heat to the air via evaporation) but that might not be the case...
and with electric it's different, because you're losing less heat to the air, so it only matters where your electricity is coming from (gas, oil, hydro, solar, nuclear, etc) whichever uses less fuel would give the best ratio.
2006-12-27 07:01:52 · answer #1 · answered by Topher 2 · 0⤊ 0⤋
Well, I'm not sure. Water takes the same amount of heat to boil no matter how you do it. However, you could modify the surrounding pressure to make boiling easier. Heat water in a low pressure enviornment. It'll boil with less energy.
If you want to make a compound, mix chemicals with it to lower its boiling point. Good luck. Hope I helped.
2006-12-27 06:28:33 · answer #2 · answered by M 4 · 2⤊ 1⤋
Use the highest possible heat setting. Gas is 30% energy efficient, which means that 70% of the potential energy yield is lost. Therefore, time is not on your side.
2006-12-27 21:20:04 · answer #3 · answered by jordannadunn 2 · 0⤊ 0⤋
The most efficient method of boiling water would be where the wtaer had been heated in a Solar Panel.
2006-12-27 06:31:28 · answer #4 · answered by Anonymous · 2⤊ 1⤋
Well, you could form a vacuum around the water, removing the air pressure and allowing the water boil. Doesn't mean the water is hot, but it is technically boiling.
2006-12-27 06:31:13 · answer #5 · answered by Jason C 2 · 0⤊ 1⤋
Put the water at the focal point of a parabolic solar oven.
2006-12-27 06:35:10 · answer #6 · answered by John's Secret Identity™ 6 · 1⤊ 0⤋
use a pressure cooker
a lid on the pan will boil water faster
start with hot tap water
cook over a wood fire
2006-12-27 06:33:59 · answer #7 · answered by saltydunes24 4 · 0⤊ 2⤋
Use John's recommendation.
2006-12-27 09:04:27 · answer #8 · answered by Anonymous · 0⤊ 0⤋
01; ALUMIUM FOIL
02; MAGNIFYING GLASS
03; SNAD AND LIMESTONE ROCKS
04; METAL BARBAQUE STAND
05; PRESSURE COOKER, WITH SAFETY VALVE REMOVED AND COPPER COILED TUBING IN PLACE , OVER TO A GLASS JAR .
GET THE PICTURE ?
2006-12-27 06:34:21 · answer #9 · answered by Anonymous · 0⤊ 0⤋
how about starting with hot tap water....that would cut down the time and energy consumption
2006-12-27 06:25:57 · answer #10 · answered by Button Face 4 · 0⤊ 3⤋