Thermodynamics - Internally reversivble process

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SUMMARY

The discussion centers on the concept of internally reversible processes in thermodynamics, specifically analyzing a scenario involving water flowing through a pipe with a constant diameter. The initial conditions are 50 ºC and 7000 kPa, while the final conditions are 450 ºC and 6000 kPa. The participants explore whether this process can be classified as internally reversible, emphasizing the importance of infinitesimal changes in initial conditions to determine reversibility.

PREREQUISITES
  • Understanding of thermodynamic processes
  • Knowledge of temperature and pressure relationships
  • Familiarity with the concept of reversibility in thermodynamics
  • Basic principles of fluid mechanics
NEXT STEPS
  • Study the criteria for internally reversible processes in thermodynamics
  • Learn about the implications of pressure and temperature gradients in fluid flow
  • Explore the concept of infinitesimal changes in thermodynamic systems
  • Investigate real-world applications of reversible processes in engineering
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Mechanical engineering students, thermodynamics enthusiasts, and professionals interested in fluid mechanics and energy systems will benefit from this discussion.

Bruno Silva
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Hi everyone,

just created my account so this is my first post. I'm from Portugal and I'm studying Mechanical Engineering in FEUP.

So my doubt basically is about internally and externally reversible processes.

"Water is on a pipe with constant diameter initially at 50 ºC 7000kPa, and in the end of the pipe at 450ºC 6000kPa. Can this process be considered internally reversible? Why?"

Thanks
 
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Bruno Silva said:
Hi everyone,

"Water is on a pipe with constant diameter initially at 50 ºC 7000kPa, and in the end of the pipe at 450ºC 6000kPa. Can this process be considered internally reversible? Why?"
Welcome to PF Bruno!

Could you reverse the temperature and pressure gradient in the pipe by changing the initial conditions by an infinitesimal amount?

AM
 
Well i don't really know, that was a question in my exam..
 

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