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 [DPRG] Solar still Message index sorted by: [ date ] [ thread ] [ subject ] [ author ] Previous message: [DPRG] Solar still Next message: [DPRG] Solar still Subject: [DPRG] Solar still From: Randy M. Dumse rmd at newmicros.com Date: Mon Dec 23 16:25:01 CST 2002 ```Ed, Found some formulas you can deal with on a very nice physics site. (Not a bad idea to book mark this site, all, for good explanations of many of the physical aspects encountered in robotoics from time to time.) See http://hyperphysics.phy-astr.gsu.edu/hbase/thermo/heatra.html#c1 One of the effects, radiative, goes up with the fourth power of the temperature difference, even worse than I implied earlier. Another factor that will work against you badly, which is not as obvious as the others, is that of evaporation. Being in relatively dry central California, the heated water will be readily picked up by the dry cooler air, and the heat of vaporization from the phase change from liquid to vapor will draw away huge amounts of heat, the same way sweating keeps your body cooled down. The bubble wrap covers probably help more than you think, by limiting the amount of surface area from which evaporation can occur. Randy www.newmicros.com > -----Original Message----- > From: dprglist-admin at dprg.org > [mailto:dprglist-admin at dprg.org]On Behalf > Of Ed Okerson > Sent: Sunday, December 22, 2002 12:39 PM > To: Kipton Moravec > Cc: DPRG List > Subject: Re: [DPRG] Solar still > > > What I was hoping to find were > formulas to help calculate how much heat I would get > if I were to make a 6 > foot, or larger still. ``` Previous message: [DPRG] Solar still Next message: [DPRG] Solar still Message index sorted by: [ date ] [ thread ] [ subject ] [ author ] More information about the DPRG mailing list