Property Diagrams and Steam Tables Summary

FIRST LAW OF THERMODYNAMICS - h1012v1_79

Thermodynamics Heat Transfer and Fluid Flow Volume 1 of 3
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PROPERTY DIAGRAMS AND STEAM TABLES Thermodynamics Summary The important information from this chapter is summarized below. Property Diagrams and Steam Tables Summary • The Mollier diagram can be used to determine various properties of a fluid. Mollier diagram is an h versus s plot. Can only be used when quality is greater than 50% and for superheated steam. Contains a series of constant temperature, constant pressure, constant moisture content, and constant superheat lines. • The steam tables can be used to determine various properties of water using the following equations. v = xv_g + (1 - x)v_f h = xh_g + (1 - x)h_f s = xs_g + (1 - x)s_f x = v v_f v_fg x = h h_f h_fg x = s s_f s_fg • The change in enthalpy of a fluid as it passes through a component can be determined using a Mollier diagram on steam tables. HT-01 Page 52 Rev. 0

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