The water mixer is used to mix water steam with cold water as shown in the figure below. The properties are indicated for inlets 1 (steam) and 2 (Water) and the exit 3 (Saturated liquid). A₂-25 cm² T₂-20°C P2-3 bar T₁-180°C Pi 3 bar m₁ 40 kg/s Control volume Saturated liquid P3-3 bar (AV)-0.6 m³/s Compute using NIST tables: a. temperature at the exit 3. boundary b. The mass flow rates at 2 and 3. c. Velocity at inlet 2

The water mixer is used to mix water steam with cold water as shown in the figure below. The properties are indicated for inlets 1 (steam) and 2 (Water) and the exit 3 (Saturated liquid). A₂-25 cm² T₂-20°C P2-3 bar T₁-180°C Pi 3 bar m₁ 40 kg/s Control volume Saturated liquid P3-3 bar (AV)-0.6 m³/s Compute using NIST tables: a. temperature at the exit 3. boundary b. The mass flow rates at 2 and 3. c. Velocity at inlet 2

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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The water mixer is used to mix water steam with cold water as shown in the figure below. The properties
are indicated for inlets 1 (steam) and 2 (Water) and the exit 3 (Saturated liquid).
A₂ = 25 cm²
T₂=20°C
P2-3 bar
T₁-180°C
-3 bar
m₁ =40 kg/s
3
Control volume
boundary
Saturated liquid
P3-3 bar
(AV)=0.6 m³/s
Compute using NIST tables:
a. temperature at the exit 3.
b. The mass flow rates at 2 and 3.
c. Velocity at inlet 2

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Step 1: Determine temp at exit 3, mass flow rates at 2 and 3, and velocity at inlet

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Step 2: Determine temperature at the exit 3

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Step 3: Determine mass flow rates at 2 and 3

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Step 4: Determine the velocity at inlet 2

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