Thermodynamic steam tables help.

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Discussion Overview

The discussion revolves around determining the temperature of steam when it is dry saturated, given specific properties such as mass, pressure, volume, and an initial temperature. The context includes thermodynamic principles and the use of steam tables.

Discussion Character

  • Exploratory, Technical explanation, Conceptual clarification

Main Points Raised

  • One participant presents initial properties of steam, including mass, pressure, volume, and temperature, seeking to find the temperature at which it becomes dry saturated.
  • Another participant suggests that the temperature could be 250°C, indicating uncertainty in their response.
  • A later reply clarifies that the question pertains to the cooling process of steam and asks at what temperature it will reach the dry saturated state.
  • There is a question raised about whether the volume remains constant during the cooling process, indicating a consideration of thermodynamic constraints.

Areas of Agreement / Disagreement

Participants do not appear to reach a consensus on the correct temperature for dry saturated steam under the given conditions, and multiple viewpoints regarding the cooling process and assumptions about volume remain unresolved.

Contextual Notes

There are limitations regarding assumptions about the cooling process, the constancy of volume, and the specific definitions of dry saturation that are not fully addressed.

MMCS
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I am trying to figure out the temperature of steam when it is only dry saturated, it has the follwoing properties

Mass = 0.05kg
pressure = 15bar
volume = 0.0076m^3
temperature = 250°C

Thanks
 
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I'm just guessing, but I think I'm right... how about 250°C?
 
chemisttree said:
I'm just guessing, but I think I'm right... how about 250°C?

Ha, My fault, bad question. it was supposed to mean, when steam is cooled from the initial properties given, at what temperature will it be just dry saturated
 
Is it correct to assume that the volume is held constant during the cooling?
 

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