Air Conditioning & Europe - at work and at home.
Jun 12th 2003, 4:22 am
#361
Guest
Posts: n/a
Re: Air Conditioning & Europe - at work and at home.
On Thu, 12 Jun 2003 21:03:53 +0800, Bernd Felsche
wrote:
>[email protected] (Miguel Cruz) writes:
>>Bernd Felsche wrote:
>>> "devil" writes:
>>>> The "pump" is actually a refrigeration machine working backward.
>>> Nope. A heat pump always pumps from cold to hot.
>>What's the difference?
>>Pumping heat into space A is the same as pumping it out of space B.
>"Pumping" from hot to cold requires *much* less work; in fact, you
>could do negative work. :-)
Then why doesn't my power company pay me for running my air
conditioner?
>When opening a door/window is more energy-efficient, you'd do that,
>wouldn't you?
Not around here, thank you. Although I was amused by yesterday's
local weather forecast: "Cool today and tomorrow with high
temperatures in the mid-90s" (that's about 35C).
************* DAVE HATUNEN ([email protected]) *************
* Tucson Arizona, out where the cacti grow *
* My typos & mispellings are intentional copyright traps *
wrote:
>[email protected] (Miguel Cruz) writes:
>>Bernd Felsche wrote:
>>> "devil" writes:
>>>> The "pump" is actually a refrigeration machine working backward.
>>> Nope. A heat pump always pumps from cold to hot.
>>What's the difference?
>>Pumping heat into space A is the same as pumping it out of space B.
>"Pumping" from hot to cold requires *much* less work; in fact, you
>could do negative work. :-)
Then why doesn't my power company pay me for running my air
conditioner?
>When opening a door/window is more energy-efficient, you'd do that,
>wouldn't you?
Not around here, thank you. Although I was amused by yesterday's
local weather forecast: "Cool today and tomorrow with high
temperatures in the mid-90s" (that's about 35C).
************* DAVE HATUNEN ([email protected]) *************
* Tucson Arizona, out where the cacti grow *
* My typos & mispellings are intentional copyright traps *
Jun 12th 2003, 7:14 pm
#362
Guest
Posts: n/a
Re: Air Conditioning & Europe - at work and at home.
>> "Pumping" from hot to cold requires *much* less work; in fact, you
>> could do negative work. :-)
> Then why doesn't my power company pay me for running my air
> conditioner?
Because the air conditioner is taking heat from your room at 22C and
pumping to the outside where it's 30C?
From cold to hot, not hot to cold.
Tim.
>> could do negative work. :-)
> Then why doesn't my power company pay me for running my air
> conditioner?
Because the air conditioner is taking heat from your room at 22C and
pumping to the outside where it's 30C?
From cold to hot, not hot to cold.
Tim.
