#garfield | Logs for 2016-07-09

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[00:42:09] <rue_house> ki hat!
[00:42:13] <rue_house> ...
[00:42:39] <rue_house> so I been having energy drinks after work to try to keep myself awake
[00:42:44] <rue_house> they have no effect on me
[00:42:48] <rue_house> so it seems
[00:43:02] <rue_house> so whatever my problem is, its not that
[00:43:12] <rue_house> oh and there are holes in the top of the muffler of the truck
[00:43:13] <rue_house> :/
[00:49:22] <katsmeow> it's too hot to wear a muffler anyhow
[01:02:29] <katsmeow> what else do you do when you get home?
[01:02:42] <katsmeow> what are you doing an hour before you start the drive home?
[01:03:51] <katsmeow> how fast must you pump water thru 1000m of pvc so it doesn't temperature rise more than 5C, as the outside water goes from 40C to 25C ?
[01:11:25] <rue_house> working
[01:12:05] <rue_house> what size pipe?
[01:12:21] <katsmeow> 1" or 2"
[01:12:23] <rue_house> I wonder how many watts per degree c
[01:13:01] <rue_house> Pin Pout flow = watts
[01:13:09] <katsmeow> the goal may be to put the 1" inside the 2", with centering springs and air as insulator
[01:13:28] <rue_house> double coil spring with current thru it?
[01:13:49] <katsmeow> no, straight line 1000m
[01:14:11] <rue_house> 1000m, I'm guessing 12 guage wire, with about 60V and 2A?
[01:14:24] <katsmeow> PIPE pumping WATER
[01:14:25] <rue_house> wrapped in insulation
[01:14:29] <rue_house> yea
[01:14:31] <rue_house> but
[01:14:32] <katsmeow> [00:37] <katsmeow> how fast must you pump water thru 1000m of pvc so it doesn't temperature rise more than 5C, as the outside water goes from 40C to 25C ?
[01:14:37] <rue_house> yea
[01:14:45] <rue_house> pipe has pressure drop
[01:14:58] <rue_house> the pressure drop [math] the flow is power, aka watts
[01:15:06] <rue_house> those watts are heat over the length of the pipe
[01:15:28] <rue_house> but I dont have a degrees-heat / watt ref
[01:16:01] <rue_house> how many watts do you need to dissipate over the length of the pipe
[01:16:06] * rue_house shrugs
[01:16:09] <katsmeow> don't care about the pressure drop atm, that's merely a matter of pump, what i dunno is what the speed of the water must be so it's still cold at the far end
[01:16:18] <katsmeow> zero watts
[01:16:33] <rue_house> oooh, I reversed the problem to keep it from freezing in winter
[01:17:18] <rue_house> I am reading this several ways, is this a heat exchanger?
[01:17:33] <katsmeow> it's a plain water pipe that i am talking about
[01:17:41] <rue_house> yea
[01:17:43] <katsmeow> i do not want to exchange any heat
[01:17:50] <rue_house> but the temp is going down
[01:18:14] <rue_house> I thought the outside water is getting colder cause winter is comming
[01:18:19] <katsmeow> how is it going down if i pump cold water in a pipe thru warmer water?
[01:18:39] <rue_house> there are two seperate waters in the pipe, I'm sorry
[01:18:42] <katsmeow> it's a static day in August in northern hemisphere
[01:18:50] <katsmeow> shit
[01:19:01] <rue_house> I cant understand the problem properly
[01:19:20] <rue_house> you said this isn't a heat exchanger
[01:19:40] <rue_house> but your exchanging heat between two waters
[01:19:47] <rue_house> and gone...