A throttling calorimeter is used to determine the dryness fraction of the steam sampled from a steam pipe at 11 bar. After throttling, the pressure and temperature of the steam were found to be 1.15 bar and 130°C, respectively. Compute for the dryness fraction of the sampled steam in %. At 11 bar: he = %3D 781.34 kJ/kg, hfg = 2000.4 kJ/kg. At 1.15 bar, tsat = %3D %3D 103.58°C, hg = 2681.7 %3D kJ/kg.

A throttling calorimeter is used to determine the dryness fraction of the steam sampled from a steam pipe at 11 bar. After throttling, the pressure and temperature of the steam were found to be 1.15 bar and 130°C, respectively. Compute for the dryness fraction of the sampled steam in %. At 11 bar: he = %3D 781.34 kJ/kg, hfg = 2000.4 kJ/kg. At 1.15 bar, tsat = %3D %3D 103.58°C, hg = 2681.7 %3D kJ/kg.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Concept explainers

Properties of Pure Substances

A substance with fixed chemical composition throughout is called a pure substance like water, air, and nitrogen. A pure substance does not have to be a single element or compound. A mixture of two or more phases of a pure substance is also a pure substance as long as the chemical composition is the same for all phases. These substances mainly have a constant/ uniform composition. The substances also have fixed boiling and melting points. A pure substance takes part in a chemical reaction to form predictable products.

Question

A throttling calorimeter is
used to determine the
dryness fraction of the
steam sampled from a steam
pipe at 11 bar. After
throttling, the pressure and
temperature of the steam
were found to be 1.15 bar
and 130°C, respectively.
Compute for the dryness
fraction of the sampled
steam in %. At 11 bar: he
%3D
781.34 kJ/kg, hfg = 2000.4
%3D
kJ/kg. At 1.15 bar, tsat =
103.58°C, he = 2681.7
%3D
kJ/kg.

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