1. Dec 11, 2014 #1

   csmaster

   

   Hi experts... I'm new to this forum and want to know that why does COP(Coefficient of Performance) in heat pumps depend on time?

    

   csmaster, Dec 11, 2014
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3. Dec 11, 2014 #2

   DrClaude

   

   Staff: Mentor

   What do you mean by "depends on time"? Are you asking why a heat pump's COP decreases as it ages?

    

   DrClaude, Dec 11, 2014
4. Dec 11, 2014 #3

   csmaster

   

   Yes you got it right. Please explain

    

   csmaster, Dec 11, 2014
5. Dec 11, 2014 #4

   DrClaude

   

   Staff: Mentor

   I don't have anything specific to say. It's like for any other machine: wear and tear leads to reduced efficiency.

    

   DrClaude, Dec 11, 2014
6. Dec 11, 2014 #5

   csmaster

   

   okay thanks

    

   csmaster, Dec 11, 2014

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