Can radiation particles contribute to heat transfer in space?

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Discussion Overview

The discussion revolves around the role of radiation particles in heat transfer in space, particularly focusing on whether radiation from the sun can contribute to the loss of heat from objects in a low-pressure environment. Participants explore the relationship between radiation and temperature, as well as the mechanics of refrigeration cycles.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • One participant questions whether radiation from the sun, described as high pressure, can "steal" energy from objects in space, which are in a low-pressure state, and whether radiation behaves similarly to matter in terms of pressure states.
  • Another participant asserts that electromagnetic radiation generally imparts energy to objects it contacts, leading to heating, and cites various entities in space that are affected by this radiation.
  • A participant expresses concern about spelling and grammar but acknowledges the response received.
  • Another participant critiques the understanding of refrigeration cycles presented in the initial post, emphasizing that temperature, rather than pressure, is the key driver for heat transfer, and outlines the steps of an ideal gas refrigeration cycle to clarify this point.

Areas of Agreement / Disagreement

Participants exhibit disagreement regarding the role of pressure in heat transfer and the initial premise about radiation's effect on energy loss in space. No consensus is reached on these points.

Contextual Notes

There are limitations in the understanding of refrigeration cycles and the definitions of pressure and temperature as they relate to heat transfer. The discussion reflects varying levels of familiarity with these concepts.

mike foster
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Freon is used every day to reduce temperature by compressing the gas then releasing the pressure. The Question is dose radiation from the sun (witch would be high pressure) steal energy from the objects it comes in contact with in space (witch is low pressure), Thus contribute to the loss of heat in space? dose radiation act the same as other mater in pressure to non pressure states?
 
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mike foster said:
The Question is dose radiation from the sun (witch would be high pressure) steal energy from the objects it comes in contact with in space (witch is low pressure), Thus contribute to the loss of heat in space? dose radiation act the same as other mater in pressure to non pressure states?

no, EM radiation will in general impart energy to whatever it comes in contact with and will heat it up ...
the earth, its atmosphere, satellites in orbit, comets and anything else out there

BTW it is does not dose
does = does this or that happen
dose = I will give you your dose of medicine to make you well

witch = casts spells and does incantations
which = used referring to something previously mentionedDave
 
sorry spelling is not a strong subject for me or grammar. Thank you for the answer.
 
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mike foster said:
sorry spelling is not a strong subject for me or grammar. Thank you for the answer.

no probs :smile:
hope the answer to your Q was useful
 
"Freon is used every day to reduce temperature by compressing the gas then releasing the pressure."

I think your understanding of refrigeration cycles needs improving because it has lead you astray when it comes to other areas. Pressure is not the driver for heat transfer, temperature is. Here is a brief outline of an ideal gas refrigeration cycle.
  1. A gas is compressed, so it goes to a higher P and a higher T than ambient (high T is needed for step 2).
  2. The gas is then allowed to cool, at a constant P, by heat transfer to the ambient. This lowers the T of the gas.
  3. Then the gas is throttled, which lowers the P and brings the T to below that of the refrigerated space (low T is required for step 4).
  4. Finally, the gas is heated at constant P by heat transfer from the refrigerated space. This increases the T of the gas on its way back to step 1.
This cycle repeats over and over with the gas. Throughout the cycle, pressure is manipulated as a proxy to control temperature, which is the property that determines the heat transfers. Pressure, of itself, is not actually aiding in the heat transfers that need to take place - that is determined entirely by temperature.

I hope this helps. :-)
 

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