Air A Gas out Air H= 100 ft Gas Air in Furnace B Ah Water manometer (relative positions of levels not necessarily correct)

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
Question

 Air (ρa = 0.08 lbm/ft3) flows through a furnace where it is burned with fuel to
produce a hot gas (ρg = 0.05 lbm/ft3) that flows up the stack, as shown in the following figure.
The pressures in the gas and the immediately surrounding air at the top of the stack at point A
are equal. What is the difference Δh (in.) in water levels in the manometer connected
between the base B of the stack and the outside air at point C? Which side rises? Except for
the pressure drop across the furnace (which you need not worry about), treat the problem as
one in hydrostatics. That is, ignore any frictional effects and kinetic energy changes in the
stack. Also, you can neglect compressibility effects and assume that the density of gas is
constant.

Air
A
Gas out
Air
H= 100 ft
Gas
Air in
Furnace
B
Ah
Water manometer (relative positions
of levels not necessarily correct)
Transcribed Image Text:Air A Gas out Air H= 100 ft Gas Air in Furnace B Ah Water manometer (relative positions of levels not necessarily correct)
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