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GoBro
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Virtually every river rat I boat with sleeps on their boat. That's worth 10-15 degrees right there. I sleep on a mesh roll-a cot on the boat, so that doubles the evaporation off you. You also don't have to find a spot or set up and take down the tent, or move your stuff off your boat. That's 30 minutes in the morning and 30 minutes in the evening I don't spend packing. Buy a used bimini from a powerboat, and you have rain protection at night and shade all day. Less sunblock application. My brother works with seniors in Phoenix, and he asked them how they got along without air conditioning pre-1950's. They slept out on the porch in a damp sheet. Humans are adaptable. We evolved in equatorial Africa for christs sake. Here in Utah I frequently ride my bike around in mid-day heat. You find a sprinkler to ride through every 20 minutes. I floated Grand in July, it was 114 at Phantom. So what? A couple people got panikey hot. I was drinking beer all day. We float Cataract mid-summer every year too. I don't go boating to haul a bunch of engineering projects along. Change thyself first.
Could you rephrase using more words and value judgements?
 

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Hey Catsailor. That is awesome. You riding your bike around and all that. Floating the river and drinking beer!! Wow. Way to go. I'll definitely be using your criteria for choosing a girlfriend as well. Is that to make sure she isn't hot?


Jim
 

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I know the thread is old but is there a better solution for creating a no-ice evap aircon? My last summer 5-days trip with friends was tough as hell. Even the water was near boiling temperature (in fact, it wasn't, but swimming definitely didn't refresh us). However, evenings and nights were good. Maybe I should somehow stop the sunrise, lol. The worst part is that when I came home, my air conditioner was under an aircon chemical overhaul, so the hell was following me... Maybe it sounds weird, but is there a mini aircon that works from a solar panel?
 

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I think a better solution is a mister. If you want to get fancy you could get a pump and battery to power it.
 

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No reason why it wouldn't work but as you said if you are wanting it for sleeping you will need a battery to go with your solar panel. It should produce about 70 degree air on a hot dry day
Step 1 Figure up how many amps the fan and pumps use (assuming its 12V).
Step 2 Multiply the amps by of run time to get A-hrs.
Step 3 Your battery should have about 1.5 time this amount of storage capacity to prevent over drawing. I would use a sealed lead acid battery.
Step4 Take the A-hr rating of the fan load from step 1 and multiply by 12 to get W-hrs
Step 5. Divide the W-hrs in step 4 by 8 hrs per day (or however long you think you can keep the panel in direct sun). This will give you the W rating of the solar panel that you need
Step 6 Look for a panel that has the watt rating from step 5 and an open circuit voltage of about 18V.
Step 7. Wire the panel to the battery with a fuse and a charge controller in the positive wire.
Step 6 Wire the battery to the fan with a fuse and a switch in the positive wire.
Step 7 Wire the pump to the battery with a fuse and a switch in the positive wire.


I have a small version of this I use for charge station mounted on/in an ammo can. Depending on how bit the panel is it may or may not be worth your trouble but do the math and decide. I could see this as a major babe magnet during cocktail hour!

Stay cool

Good idea on the battery for night time use ;)

As for battery math- yikes
 

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Sleep on your boat

Virtually every river rat I boat with sleeps on their boat. That's worth 10-15 degrees right there. I sleep on a mesh roll-a cot on the boat, so that doubles the evaporation off you. You also don't have to find a spot or set up and take down the tent, or move your stuff off your boat. That's 30 minutes in the morning and 30 minutes in the evening I don't spend packing. Buy a used bimini from a powerboat, and you have rain protection at night and shade all day. Less sunblock application. My brother works with seniors in Phoenix, and he asked them how they got along without air conditioning pre-1950's. They slept out on the porch in a damp sheet. Humans are adaptable. We evolved in equatorial Africa for christs sake. Here in Utah I frequently ride my bike around in mid-day heat. You find a sprinkler to ride through every 20 minutes. I floated Grand in July, it was 114 at Phantom. So what? A couple people got panikey hot. I was drinking beer all day. We float Cataract mid-summer every year too. I don't go boating to haul a bunch of engineering projects along. Change thyself first.
Lots of good beta in this post-
 
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