Maurice Tutor

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Category > Management Posted 10 Jul 2017 My Price 9.00

mixing valve and exit at high velocity

Two ideal gases (Inlet 1: H2 and Inlet 2: O2) are mixed in an insulated mixing valve and exit at high velocity. Assuming no pressure drop in the valve and constant specific heats (evaluated at 300K) determine the following given the conditions below.

--Given Values--
Mass flow rate 1: m_H2 (kg/s) = 0.2
Mass flow rate 2: m_O2 (kg/s) = 0.3
T1 (K) = 300
V1 (m/s) = 50
T2 (K) = 60
V2 (m/s) = 70
V3 (m/s) = 500
P (kPa) = 325

mass flow rate of H2=0.09921

mass flow rate of O2=0.009375
c) Determine the mixture molecular weight(kg/kmol).
       4.6048
d) Determine the constant pressure specific heat (kJ/kg-K) of H2 at 300K.
14.307
  
e) Determine the constant pressure specific heat (kJ/kg-K) of O2 at 300K.
0.9180
  
f) Determine T3.
        Your Answer = Correct! Exact Answer= 259.32 +/- 1.0E+00
        Answer=259.32 +/- 1.0E+00
g) Determine the rate of entropy production (kW/K) in the valve.
        Your Answer = Correct! Exact Answer= 0.25152 +/- 1.0E-03
        Answer=0.25152 +/- 1.0E-03
h) Determine the exit area (cm2).
        Your Answer = Correct! Exact Answer= 14.406 +/- 5.8E-02
        Answer=14.406 +/- 5.8E-02

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Maurice Tutor
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Status NEW Posted 10 Jul 2017 08:07 AM My Price 9.00

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