Thermodynamic Steam Generator Problem.

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SUMMARY

The discussion centers on calculating the power output of a turbine in a heat recovery steam generator (HRSG) system, focusing on the heat transfer dynamics between combustion products and water. The combustion products, treated as air and an ideal gas, exit the steam generator at a lower temperature, indicating heat transfer to the water. The participant seeks to understand how to quantify this heat transfer, specifically whether a conversion from volumetric flow rate to mass flow rate is necessary for accurate calculations.

PREREQUISITES
  • Understanding of heat recovery steam generators (HRSG)
  • Knowledge of thermodynamics, specifically heat transfer principles
  • Familiarity with ideal gas laws and properties of combustion products
  • Ability to convert volumetric flow rates to mass flow rates
NEXT STEPS
  • Research the principles of heat transfer in heat recovery steam generators (HRSG)
  • Learn how to apply the ideal gas law to combustion products in thermodynamic calculations
  • Study methods for converting volumetric flow rates to mass flow rates in fluid dynamics
  • Explore the calculation of turbine power output in thermodynamic systems
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Students and professionals in mechanical engineering, particularly those focusing on thermodynamics, power generation, and heat transfer systems.

andycampbell1
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Homework Statement


I have a problem which I will attach a picture of, regarding a system composing of a heat recovery steam generator and a turbine. I have to work out the power output of the turbine, which I think I will be fine with. What I would like to know is, how does the combustion products entering and exiting the steam generator affect the other input of water which also enters and exits the steam generator. I noticed that the temperature decreases when the combustion products exits the system. Does the drop in temperature mean that the heat transfers to the water flowing through the system? The combustion products are to be treated as air and an ideal gas.

Thanks in advance.
 

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Heat transfer from the combustion products to the water is the general purpose of the heat recovery steam generator. For the purpose of solving this problem, assume that the given flow rates of the working fluid (water) and the combustion products remain constant.
 
How would I work this heat transfer out? I have a volumetric flow rate would I need to convert this to a mass flow rate?
 

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