Answer:
a) The exit temperature is 39.25°C
b) The highest component surface is 132.22°C
c) The average temperature for air equal to 35°C is a good assumption because the air temperature at the inlet will increase due to the result in the heat gain produced by the duct and whose surface is exposed to a flow of hot.
Explanation:
a) The properties of the air at 35°C:
p = density = 1.145 kg/m³
v = 1.655x10⁻⁵m²/s
k = 0.02625 W/m°C
Pr = 0.7268
cp = 1007 J/kg°C
a) The mass flow rate of air is equal to:
The exit temperature is:
°C
b) The mean fluid velocity is:
The hydraulic diameter is:
The Reynold´s number is:
Assuming fully developed turbulent flow, the Nusselt number is:
The highest component surface temperature is:
°C
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- Step One: He or she needs to define the Problem.
- Step Two: He or she needs to find out possible Resources to solve the problem and then Brainstorm on the List for the Potential Solutions to the problem.
- Step Three : Evaluate and examine those Alternatives. ...
- Step Four : Make his or her Decision, Implement It and then examine your Decision.
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An ethical decision-making model is known to be a kind of a tool that can be used by a person to help create the ability to think in regards to an ethical dilemma and come to an ethical decision.
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Therefore, The Steps my friend need to make an ethical decision are:
- Step One: He or she needs to define the Problem.
- Step Two: He or she needs to find out possible Resources to solve the problem and then Brainstorm on the List for the Potential Solutions to the problem.
- Step Three : Evaluate and examine those Alternatives. ...
- Step Four : Make his or her Decision, Implement It and then examine your Decision.
Learn more about ethical decision from
brainly.com/question/21105288
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Answer:
Check the attached image below
Explanation:
Kindly check the attached image below to get the step by step explanation to the question above.
Answer:
23.3808 kW
20.7088 kW
Explanation:
ρ = Density of oil = 800 kg/m³
P₁ = Initial Pressure = 0.6 bar
P₂ = Final Pressure = 1.4 bar
Q = Volumetric flow rate = 0.2 m³/s
A₁ = Area of inlet = 0.06 m²
A₂ = Area of outlet = 0.03 m²
Velocity through inlet = V₁ = Q/A₁ = 0.2/0.06 = 3.33 m/s
Velocity through outlet = V₂ = Q/A₂ = 0.2/0.03 = 6.67 m/s
Height between inlet and outlet = z₂ - z₁ = 3m
Temperature to remains constant and neglecting any heat transfer we use Bernoulli's equation
Work done by pump
∴ Power input to the pump 23.3808 kW
Now neglecting kinetic energy
Work done by pump
∴ Power input to the pump 20.7088 kW
