Solar Powered Block Heaters - Page 2 - Fuelly Forums
Go Back   Fuelly Forums > Fuel Talk > General Fuel Topics
Search Today's Posts Mark Forums Read
Thread Tools Display Modes
Old 12-28-2007, 03:21 PM   #11
Team GasMisers5!
landspeed's Avatar
Join Date: Nov 2006
Posts: 440
Country: United States
JanGeo - that idea of having an extra reservoir is something I have already toyed with (also designed), and have considered fitting to my car at some point.

I also have an idea for solar-powered block heaters....

(1) Insulate the engine bay quite well
(2) Have some way of doing quickly adjustable grille block. Make sure this is closed overnight.
(3) Have a full undertry to reduce convertion cooling

(the above will mean that the engine will warm more quickly (due to less environmental loss).

Then... Get hold of a matt-black-painted 'solar panel', a mini version of what is used for hot-water heating on home solar setups. Then, get a small 12v water pump, with just enough solar-electric/voltaic panel, to power it. Then, you will get 10% efficiency or so from the electric panel... But much more efficiency of capturing heat on the 'matt-black' heat absorbing panel.

Then, when you drive to work, make sure you park where the sun will shine strongly enough towards the end of the day, flick the switch in the cabin to activate the engine heater, and away you go!. You could even use a layer or two of glass to provide insulation to the water-heater-panel (or even get some form of vacuum there, like double glazing), to reduce conducted loss, improving efficiency further.


Team GasMisers5 - #1 for first three rounds of the original GS Fuel Economy Challenge
Miles displaced by e-bike since 1 Jan 2008: 62.6 (0 kWh used)
landspeed is offline   Reply With Quote
Old 12-28-2007, 09:58 PM   #12
Registered Member
Join Date: Dec 2007
Posts: 3
Country: United States
I have found a 250 watt heat unit that says it will heat the fluids in the engine (from "the oil pan up") for vehicles up to 12 liters in one hour. I believe that time will be a bit quicker if I did insulate the system really well so that as much heat as possible would have been maintained from the drive from home to work. I am looking into that now. So one hour of a 250 watt heater on a 1000 watt battery would be about 3/4 of the battery, which isn't taking it under that half way point, so I am going to research how fast batteries charge up. And I am pretty sure I can manage to have two batteries. Do those trickle solar panels you always see advertised everywhere that you just plug into the outlet in the car work at all? It seems like any extra energy I could provide would help out.

tibbittsa is offline   Reply With Quote
Old 12-29-2007, 12:16 AM   #13
Registered Member
kamesama980's Avatar
Join Date: Nov 2007
Posts: 742
Country: United States
Location: Columbus, IN, USA
Send a message via AIM to kamesama980 Send a message via Yahoo to kamesama980

Yea, it's mspaintacular. If anyone has a better idea, feel free to put your money where your mouth is and post it up.

1991 Toyota Pickup 22R-E 2.4 I4/5 speed
1990 Toyota Cressida 7M-GE 3.0 I6/5-speed manual
mechanic, carpenter, stagehand, rigger, and know-it-all smartass
"You don't get to judge me for how I fix what you break"
kamesama980 is offline   Reply With Quote

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
Broken Odometer PReta General Fuel Topics 6 12-15-2009 04:18 AM
8WG wire rings terminals. omgwtfbyobbq For Sale 2 08-24-2007 12:03 PM
hypermiling t-shirts GasSavers_hypermile For Sale 1 06-21-2007 06:19 PM
1994 Geo Prism popimp General Fuel Topics 16 06-04-2007 02:18 PM
Smokey Yunick's hot vapor cycle engine GasSavers_maxc General Fuel Topics 0 06-09-2006 05:20 AM

Powered by vBadvanced CMPS v3.2.3

All times are GMT -8. The time now is 07:09 AM.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2016, vBulletin Solutions, Inc.