2013年4月7日 · My desire is to retain as much heat within the exhaust system as is possible. B) What colour(s) will minimize heat transfer via reduced absorption. My desire is to keep the incoming air as cool & dense as possible via minimizing thermal transfer of heat generated from underneath the hood of the vehicle into the air intake system.

2007年5月19日 · This is when heat is transferred through contact, such as a pan on a stove; in this case, it would be the hot air and the shirt coming in contact. However, a white color will reflect most UV rays from the sun (most of the energy from sunlight is not visible light), whereas a black shirt will absorb the UV rays, adding this energy to the shirt ...

2008年8月20日 · FAQ: Heat absorption, IR - light - UV, differences? What is heat absorption? Heat absorption is the process by which an object or material absorbs thermal energy from its surroundings. This energy is then converted into internal energy, causing the temperature of the object to increase. What is the difference between IR, light, and UV?

2011年6月20日 · An object is black if it reflects no or very little light (and so absorbs almost all light). And, of course, light is energy. Absorbing little light only a slight increase in energy, absorbing a lot of light means a larger increase in energy and so a larger increase in heat.

2008年1月27日 · They generate heat based on a conversion of energy from the incident light which gives the illusion that they absorb more heat - realistically, they are generating heat. DaleSpam said: If you polish a black rock you can turn a dull black rock into a shiny black rock.

2009年10月9日 · Hi, first-time poster. I hope this is the right area for this topic. It looks like this is the place to find smart people to give me good answers (I haven't seen any good forums dedicated to DIY solar heaters). Ok, I'm going to start building a …

2009年10月3日 · For example, a red color ball placed against a white background may appear brighter than the same ball placed against a black background due to contrast. Can the mystery of red color ball absorption and reflection be applied to other colors? Yes, the principles behind red color ball absorption and reflection can be applied to other colors as well.

2011年7月10日 · In summary, the conversation discusses how to determine the temperature rise for a specific color, such as black, based on the LRV, heat source, and other relevant details. It is suggested that the heat absorption coefficient can be used to calculate this, but the speaker is unable to find this information for black color.

2013年3月26日 · The absorption occurs primarily in band structure of the gases. In addition, each parcel of air, based on its temperature, emits radiation to the surrounding parcels. This radiation is also absorbed by the surrounding parcels, as described by Beer's law.

2012年11月13日 · Thanks for all of the help guys, I think I've got this figured out. I found the engineering toolbox chart earlier today, but was hesitant to use the 1 since I find it hard to believe that a painted surface has the same emissivity as a total black body. I found another resource that claims the most automotive paints are between 0.90-0.96.