Talk:2790: Heat Pump
woah! an xkcd with color what was the last one with color? (im kinda new to xkcd) 172.71.122.48 21:17, 16 June 2023 (UTC)Erfaniom
I suppose color was needed to show the air temperature. Odd, though, that in summer (in the northern hemisphere), the character is trying to increase the indoor temperature. Davidhbrown (talk) 21:27, 16 June 2023 (UTC)
- He's not. He's moving the hot air from inside to the cooler outside. Barmar (talk) 22:18, 16 June 2023 (UTC)
- I actully think he's warming the inside, already warmer than outside, by effectively (and literally!) squeezing the heat out of the cooler outdoors air.
- By compressing the cool outdoor air, he increases its temperature (p1v1/t1=p2v2/t2) to warmer than the warm indoor air, creating a squeezebox->room flow of heat energy, then returns to the outside before decompressing and lowering the temperature in his squeezebox below the cool-air temperature in order to create an outdoors->squeezebox flow of energy and repeat. (The comic has the cycle start at roughly half-way through that, and wraps round, but the heat-to-room seemed the most obvious starting place here.)
- Right now, I'd not wish to heat my indoors up (even at 11:30pm, like now), so I agree that it's a funny time of year show heat-adding (rather than heat removing), but it definitely is that. 172.70.86.154 22:31, 16 June 2023 (UTC)
Wasnt there a "My hobby is to open my refrigerator and when people tell me that doesnt help, I sneak into their house and use their AC?" Comic? I cant find it, but we should link it in the "how leaving a fridge open doesnt help" section 172.71.142.158 23:36, 16 June 2023 (UTC)
I think it's talking about leaving the door open in general i.e. forgetting to close it when getting groceries, not specifically when he's moving the heat pump Firestar233 (talk) 23:40, 16 June 2023 (UTC)
I can't think of a good reason to say this, but my new fridge doesn't warm up on the back. It warms on the sides. A bad (and quite a PITA reason) is I had to get a new fridge. Protip: don't panic, and do put the sacks of ice into something that won't leak. First time I've met a fridge that doesn't warm on the back. Btw, red hot blue cold. Pink? Light blue? A light blue a pink? Shrug. 172.70.43.31 23:57, 16 June 2023 (UTC)
How many trips would this take? I'll leave the exact parameters of the calculation up to you. (Nerd sniping attempt.) ~ Megan she/her talk/contribs 00:20, 17 June 2023 (UTC)
