ajdelange
Well-known member
- First Name
- A. J.
- Joined
- Dec 8, 2019
- Threads
- 4
- Messages
- 3,213
- Reaction score
- 3,403
- Location
- Virginia/Quebec
- Vehicles
- Tesla X LR+, Lexus SUV, Toyota SR5, Toyota Landcruiser
- Occupation
- EE (Retired)
I assume you wrote that without looking at the curves in my last post. It is obvious that at the shiny end of the scale the gradient has a much larger reflectcitivity component than emissivity. You may find the explanation eloquent and perhaps it is but it is dead wrong. At 40 °C surface temperature it only takes a 7% change in reflectivity to cover a 77% drop in emissivity. Please look at the data.Dids has explained everything well in his latest post.
Then they aren't that shiny or the air is very hot.A lot of us (older folks) have noticed shiny chrome bumpers get very hot to the touch in direct sun.
Clearly they aren't going to polish it to a mirror fininish. Probably have an albedo of about 0.8 when it leaves the factory. Probably have a temperature of 60 - 70°C (no wind) or 45 - 55 with moderate breeze."Pickling" the SS could be a way to achieve the best of all worlds. A very shiny CT will be quite annoying for other drivers to look at depending on the sun angle, etc.
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