Adiabatic Process: Solving Problems with Formulas & Methods

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SUMMARY

The discussion centers on the adiabatic process, specifically addressing the formulas and methods required to solve related problems. Participants inquire about steam tables and the constraints on the change of enthalpy per unit mass in continuous flow processes. Clarification is sought regarding the starting temperature, whether it is 600 K or 600 °C, which is crucial for accurate calculations in thermodynamics.

PREREQUISITES
  • Understanding of thermodynamic principles, particularly the first law of thermodynamics.
  • Familiarity with steam tables and their application in engineering.
  • Knowledge of enthalpy and its significance in continuous flow processes.
  • Basic proficiency in thermodynamic equations and calculations.
NEXT STEPS
  • Research the specific formulas for calculating enthalpy changes in adiabatic processes.
  • Study the use of steam tables in thermodynamic analysis.
  • Explore the implications of temperature variations (K vs. °C) on thermodynamic calculations.
  • Investigate continuous flow process modeling techniques in thermodynamics.
USEFUL FOR

Students and professionals in mechanical engineering, thermodynamics researchers, and anyone involved in energy systems analysis will benefit from this discussion.

Kajan thana
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TL;DR
T1= 600K
p1= 200 bar
h=3539 (kJ/kg)
s = 6508 (J/kg.k)
cp = 2781 (J/Kg.K)

steam at 200 bar 600 c flows steadily through an adiabatic throttle with a downstream pressure of 1 bar(state 2).

How do I find the cp, h and `T value for state 2?
Could I have help with what formulas or method that is required in order to solve the problem?
 
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Do you have a set of steam tables? For this continuous flow process, what is the constraint on the change of enthalpy per unit mass? Is the starting temperature 600 K or 600 C?
 
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I have encountered a vertically oriented hydraulic cylinder that is designed to actuate and slice heavy cabling into sections with a blade. The cylinder is quite small (around 1.5 inches in diameter) and has an equally small stroke. The cylinder is single acting (i.e. it is pressurized from the bottom, and vented to atmosphere with a spring return, roughly 200lbs of force on the spring). The system operates at roughly 2500 psi. Interestingly, the cylinder has a pin that passes through its...

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