【Mechanical Equipment Technology Exchange Edition】Mechanical Equipment 【Daily Question】20190827
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Question: What are black bodies, white bodies, and thermoplastic bodies? There are no answers provided for this series of posts; fellow netizens are free to share their own opinions – just reply with what you understand. Replies earn rewards ranging from 5 to 15 points; all forum members are welcome to participate actively and support the development of the forum! ! ! Chemical Equipment and Machinery
⑴White body (absolute white body): An object that reflects all incident radiation, with rh=1. ⑵ Black body (absolute black body): An object that absorbs all incident radiation, with ρh=1. ⑶ Perfectly transparent body: An object that allows all incident radiation to pass through, with τh=1.
An object with an absorption ratio of α=1 is called an absolute blackbody; an object with a reflection ratio of ρ=1 is known as a white body; an object with a transmission ratio of τ=1 is referred to as a transparent body
An object that can absorb all radiant energy is called a black body； An object that can reflect all radiant energy is called a perfect reflector; an object that can transmit all radiant energy is called a perfect transmitter
An object that can absorb all radiant energy is called a black body or an absolute black body； An object that can reflect all radiant energy is called a perfect blackbody ； An object that can transmit all forms of radiant energy is called a thermopassive material.
⑴White body (absolute white body): An object that reflects all incident radiation, with rh=1. ⑵ Black body (absolute black body): An object that absorbs all incident radiation, with ρh=1. ⑶ Perfectly transparent body: An object that allows all incident radiation to pass through, with τh=1.
I’ve seen it before; it seems to relate to radiation: a black body is a substance that can absorb all radiant energy, a white body is one that can reflect all radiant energy, and a thermal conductor is a substance through which radiant energy can pass.
⑴White body (absolute white body): An object that reflects all incident radiation, with rh=1. ⑵ Black body (absolute black body): An object that absorbs all incident radiation, with ρh=1. ⑶ Perfectly transparent body: An object that allows all incident radiation to pass through, with τh=1.
An object that can absorb all radiant energy is called a black body； An object that can reflect all radiant energy is called a perfect reflector; an object that can transmit all radiant energy is called a perfect transmitter
Perfect reflector (absolute reflector): An object that reflects all incident radiation; rh=1. Perfect absorber (absolute absorber): An object that absorbs all incident radiation; ρh=1. Perfect transparent body: An object that allows all incident radiation to pass through; τh=1.
An object that can absorb all radiant energy is called a black body； An object that can reflect all radiant energy is called a perfect reflector; an object that can transmit all radiant energy is called a perfect transmitter