Please solve this Question in 30 minutes i will give you positive feedback Problem 3:A heat exchanger is built as a bundle of 120 small steel tubes (outer diameter: 1 cm, inner diameter:0.9 cm, thermal conductivity: 80 W/(m K)) and operated in counter-flow configuration. The heatexchanger is used to preheat the combustion air supplied to a combustion chamber through the hotexhaust gas from the chamber. The exhaust gas flowing inside all tubes has a combined flow rateof 15 kg/s, an inlet temperature of 1100 K, and a convective heat transfer coefficient of 120 W/(m2K) on the inside of the tubes. The cold air has a flow rate of 10 kg/s, an inlet temperature of 300K, and a convective heat transfer coefficient of 250 W/(m? K) on the outside of the tubes. Theexhaust gas and the air have a specific heat capacity of 1080 J/(kg K).Determine the length of a single tube required to achieve an air outlet temperature of 850 K.In your own words, what is the physical meaning of NTU?

GIVEN: numbers of tube: n=120 outer diameter of tube: do=0.01m inner diameter of tube: di=0.009m…

A heat exchanger is built as a bundle of 120 small steel tubes (outer diameter: 1 cm, inner d 0.9 cm, thermal conductivity: 80 W/(m K)) and operated in counter-flow configuration. exchanger is used to preheat the combustion air supplied to a combustion chamber througl exhaust gas from the chamber. The exhaust gas flowing inside all tubes has a combined f of 15 kg/s, an inlet temperature of 1100 K, and a convective heat transfer coefficient of 120 K) on the inside of the tubes. The cold air has a flow rate of 10 kg/s, an inlet temperatur

A heat exchanger is built as a bundle of 120 small steel tubes (outer diameter: 1 cm, inner d 0.9 cm, thermal conductivity: 80 W/(m K)) and operated in counter-flow configuration. exchanger is used to preheat the combustion air supplied to a combustion chamber througl exhaust gas from the chamber. The exhaust gas flowing inside all tubes has a combined f of 15 kg/s, an inlet temperature of 1100 K, and a convective heat transfer coefficient of 120 K) on the inside of the tubes. The cold air has a flow rate of 10 kg/s, an inlet temperatur

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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Project Management Techniques

The guideways or the roadways that are undertaken to perform a project efficiently and all the tools required to accomplish the task are the general outlines for project management techniques.

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Please solve this Question in 30 minutes i will give you positive feedback

Problem 3:
A heat exchanger is built as a bundle of 120 small steel tubes (outer diameter: 1 cm, inner diameter:
0.9 cm, thermal conductivity: 80 W/(m K)) and operated in counter-flow configuration. The heat
exchanger is used to preheat the combustion air supplied to a combustion chamber through the hot
exhaust gas from the chamber. The exhaust gas flowing inside all tubes has a combined flow rate
of 15 kg/s, an inlet temperature of 1100 K, and a convective heat transfer coefficient of 120 W/(m2
K) on the inside of the tubes. The cold air has a flow rate of 10 kg/s, an inlet temperature of 300
K, and a convective heat transfer coefficient of 250 W/(m? K) on the outside of the tubes. The
exhaust gas and the air have a specific heat capacity of 1080 J/(kg K).
Determine the length of a single tube required to achieve an air outlet temperature of 850 K.
In your own words, what is the physical meaning of NTU?

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