Quote:
Originally Posted by seifrob
The only valid test should be performed so: take two identic cars, one with chrome roof, one with white. Put them on the parking lot, put a milkjug full of water in each car, immerse thermometers in milkjugs, measure temperatures every 10 minutes or so. Compare curves.
Ecomodder plausible test: take two identic shoeboxes or banana boxes, chrome top and white top. Take half litre bottle instead of a jug, use the same procedure.
|
When you park a black car in the sun, vs a white car, you only see a few *C difference.
https://www.racq.com.au/~/media/pdf/...rvey_2009.ashx
They recorded only a 3*C delta between near black and white. Since white and chrome a much closer in performance, the delta would be within your margin or error.
The paint surface temperature between white and black can be around 40*C, where as white vs chrome is under 10*C.
Here's chrome on a white panel that I cut out of my old van:
Frankly, you don't need any test, you can easily feel the difference by hand. How much it affects interior temperature is another thing. I did my install on a van without any headliner (which would then get very hot solar panels on top), a black Jeep without headliner and an almost black car with headliner. Basically all worst case scenarios.
If you've got a silver car and a decent headliner, you'll probably see no measurable benefit. For example I insulated my doors, and the IR shows no difference.
You might notice a conspicuous absence of window tint testing (two cars side by side) on line. I can only conclude that such results are underwhelming - even if surface testing is impressive:
https://ecomodder.com/forum/showthre...ted-35441.html
But this is ecomodder, where every bit adds up.