Need help on how to figure out the problems (Steam)

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SUMMARY

This discussion focuses on solving thermodynamic problems related to steam using steam tables. Key calculations include determining the boiling point at 5 MPa, finding pressure at a boiling point of 195°C, calculating the enthalpy of evaporation at 2800 kPa, and computing the total enthalpy required to produce 2 kg of wet steam with a dryness factor of 0.7 at 4 MPa. The user seeks guidance on the appropriate equations and methods to utilize steam tables effectively for these calculations.

PREREQUISITES
  • Understanding of steam tables and their applications
  • Knowledge of thermodynamic properties of steam
  • Familiarity with enthalpy calculations
  • Basic principles of pressure and temperature relationships in steam systems
NEXT STEPS
  • Study the use of steam tables for thermodynamic calculations
  • Learn how to calculate enthalpy using the specific enthalpy values from steam tables
  • Research the relationship between pressure and boiling point in steam systems
  • Explore the concept of dryness fraction and its impact on steam properties
USEFUL FOR

This discussion is beneficial for students studying thermodynamics, engineers working with steam systems, and anyone involved in energy production or HVAC systems requiring steam calculations.

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Homework Statement


Determine by using steamtables for 2kg of steam
- Boiling point if pressure is 5MPa
- pressure if the boiling point is 195°C
- enthalpy of evaporation at pressure 2800kPa
- total elathapy in MJ required to produce 2kg of wet steam with dryness factor of 0.7 at a pressure of 4MPa

What equations would I need to solve the problem?


Homework Equations



What equations would I need to solve the problem?

The Attempt at a Solution


My book isn't very descriptive and its the first time in 5 years I am doing physics, long distance learning as well.

I just need help in the right direction to solve the problem
 
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What equations would I need to solve the problem?

Doesn't the problem ask you to use the steam tables?
Or is an answer to that question part of the problem also?
 
Yes it does ask to use the steam tables. I am just more lost as to use which equations with the steam tables to help with my problem
 

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