Energy of Waste Heat: Is Exergy of Steam Less?

  • Thread starter Thread starter Rafe Zayed
  • Start date Start date
  • Tags Tags
    Energy Heat
Click For Summary
SUMMARY

The discussion centers on the relationship between the exergy of waste heat and the exergy of steam within a combined cycle power plant. It concludes that energy and exergy are properties of substances, indicating that the exergy of waste heat and the exergy of steam are fundamentally the same. Therefore, it is not possible for the exergy of waste heat to be less than that of steam at any point in the power plant, as they represent the same thermodynamic property.

PREREQUISITES
  • Understanding of thermodynamic properties, specifically exergy
  • Knowledge of combined cycle power plant operations
  • Familiarity with heat transfer principles
  • Basic concepts of working fluids in thermodynamic cycles
NEXT STEPS
  • Research the principles of exergy analysis in thermodynamics
  • Explore the design and operation of combined cycle power plants
  • Study the properties of working fluids, focusing on steam
  • Investigate the implications of waste heat recovery systems
USEFUL FOR

Thermodynamic engineers, power plant designers, and students studying energy systems will benefit from this discussion, particularly those interested in the efficiency of combined cycle power plants and the role of exergy in thermodynamic processes.

Rafe Zayed
Messages
6
Reaction score
0
Suppose a combined cycle power plant is made using waste heat as the heat source for second cycle.let the second cycle working fluid be steam.Is it possible that the exergy of waste heat is less than exergy of steam at any point of the powerplant?
 
Engineering news on Phys.org
Rafe Zayed said:
Is it possible that the exergy of waste heat is less than exergy of steam at any point of the powerplant?

Energy (and exergy) is a property of a substance. Therefore "the exergy of waste heat" and "extergy of the steam" are not separate things, they are the same thing.
 

Similar threads

  • · Replies 14 ·
Replies
14
Views
3K
Replies
2
Views
2K
  • · Replies 2 ·
Replies
2
Views
2K
  • · Replies 3 ·
Replies
3
Views
3K
Replies
7
Views
2K
  • · Replies 1 ·
Replies
1
Views
2K
  • · Replies 1 ·
Replies
1
Views
1K
  • · Replies 34 ·
2
Replies
34
Views
5K
  • · Replies 7 ·
Replies
7
Views
2K
Replies
7
Views
5K