Each project should be presented in written and oral forms. A written individual report should contain a summary, introduction, short literature review, objectives, methodology, results and discussion and conclusion. Project 1 A vortex tube is a mechanical-thermal device that separates a compressed flow of air (or any inert gas) into hot and cold streams and has no mechanical moving parts. Cold Air Problem 1 Vortex tube simple modeling [1] Compressed Air Supply Vortex Spin Chamber (2 cold outlet f=0.25 P₁ = 100 kPa a. Start by solving using the simple problem (problem 1) described below. b. Derive the basic equations allowing its performance evaluation. c. Develop an EES model and conduct an analysis on the thermal performance of this device. Consider three working fluids. d. Consider the integration of the vortex tube with a refrigeration system. e. Develop the main equations f. Estimate the COP with and without the vortex tube. Control Valve https://blog.exair.com/2018/10/31/the-theory-of-the-vortex-tube/ Hot Air A vortex tube takes in high-pressure air at 650 kPa and 305 K, and splits it into two streams at a lower pressure, 100 kPa: one at a higher temperature of 325 K and one at a lower temperature. The fraction of mass entering that leaves at the cold outlet is f-0.25. The vortex tube operates continuously at steady state, is adiabatic, and performs/experiences no work. Air should be modeled as an ideal gas with constant specific heat: R=287 J/kg-K and Cp=1004 J/kg.K. inlet T. = 305 K P₁ = 650 kPa vortex tube hot outlet T₂-325 K P₂ = 100 kPa a) Determine the temperature at the cold end. Then, determine whether this device is physically possible. b) Analyze the effect of inlet pressure P1 (from 1 bar to 10 bars) on the cold end temperature. c) Consider the case of steam and repeat a) and b). d) Discuss the practical problems that may occur when using steam. [1] https://kyleniemeyer.github.io/computational-thermo/content/second-law/vortex- tube.html

Elements Of Electromagnetics
7th Edition
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Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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Each project should be presented in written and oral forms. A written individual report should
contain a summary, introduction, short literature review, objectives, methodology, results and
discussion and conclusion.
Project 1
A vortex tube is a mechanical-thermal device that separates a compressed flow of air (or any
inert gas) into hot and cold streams and has no mechanical moving parts.
Cold Air
Compressed
Air Supply
Vortex Spin
Chamber (2
cold outlet
f = 0.25
P₁ = 100 kPa
d.
e. Develop the main equations
f. Estimate the COP with and without the vortex tube.
https://blog.exair.com/2018/10/31/the-theory-of-the-vortex-tube/
a. Start by solving using the simple problem (problem 1) described below.
b. Derive the basic equations allowing its performance evaluation.
c.
Develop an EES model and conduct an analysis on the thermal performance of this device.
Consider three working fluids.
Consider the integration of the vortex tube with a refrigeration system.
Control Valve
Hot Air
6
Problem 1
Vortex tube simple modeling [1]
A vortex tube takes in high-pressure air at 650 kPa and 305 K, and splits it into two streams at a
lower pressure, 100 kPa: one at a higher temperature of 325 K and one at a lower temperature.
The fraction of mass entering that leaves at the cold outlet is f-0.25. The vortex tube operates
continuously at steady state, is adiabatic, and performs/experiences no work. Air should be
modeled as an ideal gas with constant specific heat: R=287 J/kg K and Cp=1004 J/kg.K.
inlet
T₁ = 305 K
P₁ = 650 kPa
vortex tube
hot outlet
T₂=325 K
P₂ = 100 kPa
a) Determine the temperature at the cold end. Then, determine whether this device is
physically possible.
b) Analyze the effect of inlet pressure P1 (from 1 bar to 10 bars) on the cold end temperature.
c) Consider the case of steam and repeat a) and b).
d) Discuss the practical problems that may occur when using steam.
[1] https://kyleniemeyer.github.io/computational-thermo/content/second-law/vortex-
tube.html
Transcribed Image Text:Each project should be presented in written and oral forms. A written individual report should contain a summary, introduction, short literature review, objectives, methodology, results and discussion and conclusion. Project 1 A vortex tube is a mechanical-thermal device that separates a compressed flow of air (or any inert gas) into hot and cold streams and has no mechanical moving parts. Cold Air Compressed Air Supply Vortex Spin Chamber (2 cold outlet f = 0.25 P₁ = 100 kPa d. e. Develop the main equations f. Estimate the COP with and without the vortex tube. https://blog.exair.com/2018/10/31/the-theory-of-the-vortex-tube/ a. Start by solving using the simple problem (problem 1) described below. b. Derive the basic equations allowing its performance evaluation. c. Develop an EES model and conduct an analysis on the thermal performance of this device. Consider three working fluids. Consider the integration of the vortex tube with a refrigeration system. Control Valve Hot Air 6 Problem 1 Vortex tube simple modeling [1] A vortex tube takes in high-pressure air at 650 kPa and 305 K, and splits it into two streams at a lower pressure, 100 kPa: one at a higher temperature of 325 K and one at a lower temperature. The fraction of mass entering that leaves at the cold outlet is f-0.25. The vortex tube operates continuously at steady state, is adiabatic, and performs/experiences no work. Air should be modeled as an ideal gas with constant specific heat: R=287 J/kg K and Cp=1004 J/kg.K. inlet T₁ = 305 K P₁ = 650 kPa vortex tube hot outlet T₂=325 K P₂ = 100 kPa a) Determine the temperature at the cold end. Then, determine whether this device is physically possible. b) Analyze the effect of inlet pressure P1 (from 1 bar to 10 bars) on the cold end temperature. c) Consider the case of steam and repeat a) and b). d) Discuss the practical problems that may occur when using steam. [1] https://kyleniemeyer.github.io/computational-thermo/content/second-law/vortex- tube.html
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