How many gallons of gasoline would it take to charge an iPhone?
exxonmobilperspectives.com
How many gallons of gasoline would it take to charge an iPhone?
1–10 of 66 posts
Re: How many gallons of gasoline would it take to charge an iPhone?
#2Since they don't really follow through on the original question: the article implies it will take ~137 micro gallons to charge an iphone. The size of the fuel would be slightly inferior to an M&M [1].
[1] http://www.wolframalpha.com/input/?i=1+%2F+20+%2F+365+gallon...
Re: How many gallons of gasoline would it take to charge an iPhone?
#3I guessed 5 ml; but I was off by an order of magnitude, it's more like 0.5 ml.
Re: How many gallons of gasoline would it take to charge an iPhone?
#4Key takeaway: Vehicles powered by petroleum fuels are incredibly power consuming. Driving a car a single hour on a highway consumes as much energy as an iPhone does in about 46 years.
http://www.wolframalpha.com/input/?i=1+hour+*+100km%2Fh+%2F+...
Re: How many gallons of gasoline would it take to charge an iPhone?
#5"I bet they're going to talk about the total amount of energy in a gallon of gas, without mentioning anything about how that's translated to electrity, and how much of the energy is lost in the process"
click
"Yup."
Re: How many gallons of gasoline would it take to charge an iPhone?
#6We don't mine batteries from the ground.
Misleading industry puff piece. The question isn't how much would it take but rather how much does it take.
Petrochemical / coal, fossil fuels in general are already generating our power at increasing cost in terms of the raw materials, processing (more difficult processing of oil sands, frakking, etc.)
Give me modern nuclear combined with alternatives like increasingly cheap solar.
Of course, at this moment the US government is mulling tariffs on chinese solar panels since they are too cheap. Evidently the free market is awesome except when it results in cheap products that threaten an established industry.
Re: How many gallons of gasoline would it take to charge an iPhone?
#7This is a facepalm on so many levels:
- oil company predicts oil will still be used in (a lot of) years
- oil company realizes that a) there is an incredible amount of energy in oil and b) the most efficient machines available use only small percentages of that energy
Dumping the remaining energy as heat in a climate-change world. Great!
Re: How many gallons of gasoline would it take to charge an iPhone?
#8Key takeaway: Vehicles powered by petroleum fuels are incredibly power consuming. Driving a car a single hour on a highway consumes as much energy as an iPhone does in about 46 years. http://www.wolframalpha.com/input/?i=1+hour+*+100km%2Fh+%2F+...
All vehicles are incredibly power consuming (compared to iPods) and there are basic limits to improving this. If you want a vehicle that is large enough to hold a human and can push air out of the way at 60 mph, it's going to take a lot of energy. Driving habits, aerodynamics, and size can change this usage by a factor of order unity, but they can't do it by orders of magnitude. Thus, alternative energy sources must approach the energy density of petroleum if they are to be competitive.
Re: How many gallons of gasoline would it take to charge an iPhone?
#9Key takeaway: Vehicles powered by petroleum fuels are incredibly power consuming. Driving a car a single hour on a highway consumes as much energy as an iPhone does in about 46 years. http://www.wolframalpha.com/input/?i=1+hour+*+100km%2Fh+%2F+...
I realize you're being slightly snarky...
If the chart on the website is to be believed, gasoline is second only to diesel in terms of energy density of viable fuel sources.
The power consumption of a vehicle has little to do with gasoline, though there is an important consideration for efficiency in terms of converting the fuel to linear motion (internal combustion engine and drivetrain).
Vehicles powered by any method are incredibly power consuming. Your average vehicle weighs more than 10x the weight of a single passenger, or in many cases 10x the weight of 2 pax.
Public transportation (impractical in the suburbs), or self-navigating vehicles (more practical) would seem to be a key in reducing the vehicle:occupant weight ratio and increasing overall efficiency.
Re: How many gallons of gasoline would it take to charge an iPhone?
#10> And energy density is one of the key factors behind the reliability
Density can actually be per-mass or per-volume. Per mass hydrogen is pretty attractive.
http://en.wikipedia.org/wiki/Energy_density
Now we just need an efficient, safe and clean way to turn gasoline into electricity and problem solved ;-) right ?