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What we need is a paint that turns white when air temperature is high, and black when air temperature is low to reduce our heating and cooling needs.
by goda90 6y ago
What we need is a paint that turns white when air temperature is high, and black when air temperature is low to reduce our heating and cooling needs.
- devenson 6y agoThough black surfaces radiate energy more easily due to higher emissivity, and white radiate less due to low emissivity. So the benefit may be less than you think.
- buran77 6y agoNotably, the benefit may be "less" than expected but for all intents and purposes any building or vehicle painted black will be consistently warmer than the equivalent in white. Unless your item is built for purpose it's highly unlikely painting something black will make a visible difference in the cooling rate compared to the white one, at least not in conditions that might be relevant for our discussion.
- icedistilled 6y ago"Darker materials also emit radiation more readily than light-colored materials, so they cool faster."
- hinkley 6y agoOnly if they are warmer than their environment and don’t have a huge influx of radiant energy incident on their surfaces.