Energy and environmental issues are critical to human society. In 2013, the United States emitted about 5,500 million tons of carbon dioxide [1] and consumed 88,159 trillion Btu of energy [2]. Nearly one-third of the total energy is consumed in the industry sector. Significant efforts have been dedicated to improving industrial energy efficiency. A valuable approach is to capture and reuse the "waste heat" that is intrinsic to all industrial manufacturing since as much as 20% to 50% of the consumed energy is eventually lost as waste heat. The major challenge for this approach is the design and development of the waste heat recovery unit. The goal of this project is to design a concentric tube heat exchanger for waste heat recovery. The length of the tube should not exceed 10 m, and its outer diameter should be less than 2 m. The hot air (initial temperature 250°C) is the residual exhaust from the industrial processes, and its mass flow rate is 0.5 kg/s. The wastewater (initial temperature 30°C) is used to recover and restore this wasted energy, and its mass flow rate is 0.5 kg/s. The fouling factor can be ignored. The basic objective is to heat the cold fluid (water) to a temperature as high as possible while controlling the cost at an acceptable level. Fluid 1 Fluid 2 Total space 10 m 2 m E
Energy and environmental issues are critical to human society. In 2013, the United States emitted about 5,500 million tons of carbon dioxide [1] and consumed 88,159 trillion Btu of energy [2]. Nearly one-third of the total energy is consumed in the industry sector. Significant efforts have been dedicated to improving industrial energy efficiency. A valuable approach is to capture and reuse the "waste heat" that is intrinsic to all industrial manufacturing since as much as 20% to 50% of the consumed energy is eventually lost as waste heat. The major challenge for this approach is the design and development of the waste heat recovery unit. The goal of this project is to design a concentric tube heat exchanger for waste heat recovery. The length of the tube should not exceed 10 m, and its outer diameter should be less than 2 m. The hot air (initial temperature 250°C) is the residual exhaust from the industrial processes, and its mass flow rate is 0.5 kg/s. The wastewater (initial temperature 30°C) is used to recover and restore this wasted energy, and its mass flow rate is 0.5 kg/s. The fouling factor can be ignored. The basic objective is to heat the cold fluid (water) to a temperature as high as possible while controlling the cost at an acceptable level. Fluid 1 Fluid 2 Total space 10 m 2 m E
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
Related questions
Question
Can I get help on the criteria and assumptions part please? I think that counter flow arrangement would be better to use due to it being more efficient, but I'm not exactly sure.
![Energy and environmental issues are critical to human society. In 2013, the United States emitted
about 5,500 million tons of carbon dioxide [1] and consumed 88,159 trillion Btu of energy [2].
Nearly one-third of the total energy is consumed in the industry sector. Significant efforts have
been dedicated to improving industrial energy efficiency. A valuable approach is to capture and
reuse the "waste heat" that is intrinsic to all industrial manufacturing since as much as 20% to 50%
of the consumed energy is eventually lost as waste heat. The major challenge for this approach is
the design and development of the waste heat recovery unit.
The goal of this project is to design a concentric tube heat exchanger for waste heat recovery. The
length of the tube should not exceed 10 m, and its outer diameter should be less than 2 m. The hot
air (initial temperature 250°C) is the residual exhaust from the industrial processes, and its mass
flow rate is 0.5 kg/s. The wastewater (initial temperature 30°C) is used to recover and restore this
wasted energy, and its mass flow rate is 0.5 kg/s. The fouling factor can be ignored. The basic
objective is to heat the cold fluid (water) to a temperature as high as possible while controlling the
cost at an acceptable level.
Fluid 1
Fluid 2
Total space
10 m
2 m
E](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F073654f7-f6ae-4088-9c12-c0cdcc78aade%2F9f2489b8-08b9-4ade-a72f-b42798597e56%2F5ehdjx_processed.png&w=3840&q=75)
Transcribed Image Text:Energy and environmental issues are critical to human society. In 2013, the United States emitted
about 5,500 million tons of carbon dioxide [1] and consumed 88,159 trillion Btu of energy [2].
Nearly one-third of the total energy is consumed in the industry sector. Significant efforts have
been dedicated to improving industrial energy efficiency. A valuable approach is to capture and
reuse the "waste heat" that is intrinsic to all industrial manufacturing since as much as 20% to 50%
of the consumed energy is eventually lost as waste heat. The major challenge for this approach is
the design and development of the waste heat recovery unit.
The goal of this project is to design a concentric tube heat exchanger for waste heat recovery. The
length of the tube should not exceed 10 m, and its outer diameter should be less than 2 m. The hot
air (initial temperature 250°C) is the residual exhaust from the industrial processes, and its mass
flow rate is 0.5 kg/s. The wastewater (initial temperature 30°C) is used to recover and restore this
wasted energy, and its mass flow rate is 0.5 kg/s. The fouling factor can be ignored. The basic
objective is to heat the cold fluid (water) to a temperature as high as possible while controlling the
cost at an acceptable level.
Fluid 1
Fluid 2
Total space
10 m
2 m
E
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