Reusing lost energy from Compressed air

AI Thread Summary
Heat is not typically reused during the expansion of compressed air due to the logistical challenges of transporting the heat efficiently. Implementing an extra set of pipes to carry the heat to various usage points would be cumbersome and may not justify the effort for the amount of heat recovered. However, there are potential applications for the recovered heat, such as heating water. To optimize heat reuse during expansion, a well-designed system could integrate heat exchangers to capture and redirect heat effectively. Overall, while reusing heat in air expansion presents challenges, strategic configurations could enhance efficiency.
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Why is Heat not normally trapped when compressing Air, and reused again in the expansion process of the same air?
 
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It would be hard to reuse it in the expansion in most cases I can think of -- you'd need an extra set of pipes going to each usage point in order to carry the heat. That would be cumbersome for the amount of heat that can be recovered.

If you're lucky, you may be able to find other uses for that heat, such as heating water.
 
Ok Russ, thanks for that...just tell me, if Heat was used for expansion, how might it be configured to offer the best outcomes?
 
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