|
|
|
|
|
|
by outworlder
1433 days ago
|
|
|
> the gases used by AC units are extremely powerful - up to 750 times the greenhouse effect of CO2. They are sealed systems. They only emit gasses when breached. Or when not properly disposed of. > And of course, the AC unit itself heats the city A few watts - whatever power it requires to operate. Say it uses 1.5kw. That's the max it will heat up the city. It will of course move 4x this amount of heat(maybe more!), being a heat pump. But the 'new' heat is only what's imported by the power grid. The rest of the heat was already in the city. It's also worth noting that it's often quite sunny when it's hot. If you power AC units with sunlight, you are actually not introducing any more heat to the system at all. That sunlight would already hit your city and be converted into heat, if you use some of it to move heat around, you are not increasing the overall heat level. |
|
|
And mechanical devices having leaks is a folklore tale told to scare children?
> A few watts - whatever power it requires to operate. Say it uses 1.5kw. That's the max it will heat up the city.
Yeah. 1500W. Times the number of AC units in the city. That's what adds up to the temperature difference between the city and the countryside.
> If you power AC units with sunlight...
...with a solar panel above your own home, with no inefficiency in the electrical grid, the solar panel, or the AC unit itself. Please, this isn't a high school physics exam, you can't assume that there is no friction or that the AC unit is spherical. This is real life.