EGN_3358_Notes_Ch3_Properties of a pure substances-Part 1

EGN_3358_Notes_Ch3_Properties of a pure substances-Part 1 -...

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EGN-3358 – Thermo-Fluids-Heat Transfer EGN 3358 Thermo-Fluids-Heat Transfer Lecture 4: Properties of a Pure Substance “Chapter 3 - Part 1”
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EGN-3358 – Thermo-Fluids-Heat Transfer Chapter 3 Properties of a Pure Substance
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EGN-3358 – Thermo-Fluids-Heat Transfer State Postulate The number of independent properties needed to completely define the state of a thermodynamic system is one more than the number of possibly relevant work interactions. The state of a simple compressible system is completely specified by 2 independent, intensive properties.
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EGN-3358 – Thermo-Fluids-Heat Transfer Simple System A simple system is one where there is only one possibly relevant work interaction, e.g. expansion or compression work.
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EGN-3358 – Thermo-Fluids-Heat Transfer State Postulate for Simple System One plus one equals two. Therefore, for a simple system, two independent properties are needed to completely define the state of the system.
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EGN-3358 – Thermo-Fluids-Heat Transfer Fluid, e.g. H 2 O Fluid, e.g. H 2 O
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EGN-3358 – Thermo-Fluids-Heat Transfer Experiment - heat water at constant pressure: v T p p 1
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EGN-3358 – Thermo-Fluids-Heat Transfer Experiment - heat water at constant pressure: v T p p 1 p p 2
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EGN-3358 – Thermo-Fluids-Heat Transfer Experiment - heat water at constant pressure: v T p p 1 p p 2 Saturation Saturation Curve Curve
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EGN-3358 – Thermo-Fluids-Heat Transfer T, 0 C Specific Volume, v Experiment - heat water at constant pressure: 20 100 1 4 2 3 5 300 Saturated mixture Superheated vapor Compressed liquid P=1atm
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EGN-3358 – Thermo-Fluids-Heat Transfer Pressure Specific Volume Critical Point Saturated Vapor locus Saturated Liquid locus
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EGN-3358 – Thermo-Fluids-Heat Transfer Pressure Specific Volume Superheated Vapor region Wet Vapor region Compressed Liquid region
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EGN-3358 – Thermo-Fluids-Heat Transfer Substance contracts on freezing Substance expands on freezing
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Equations of State Relation among three thermodynamic properties.
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This note was uploaded on 11/25/2011 for the course EGN 3358 taught by Professor Sleiti during the Fall '07 term at University of Central Florida.

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EGN_3358_Notes_Ch3_Properties of a pure substances-Part 1 -...

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