Air is being heated with hot oil in banks. The tubes are made of an alloy with thermal conductivity (K= 310 W/mk). The hot oil is at a temperature of 125 degree Celsius and flows inside the tubes. The air flows on the outside. Air enters at 20 degrees Celsius with a mean velocity of 5.8 m/s and at 1 atm. The tubes are thin wall with a diameter of 2cm. The tubes are arranged in staggered arrangement with longitudinal transverse pitches of SL-ST= 5cm. There are 21 rows in the flow direction with 8 tubes per row. Assume an exit temperature of the air from the tube bank as 80 degrees Celsius and based on this, determine the following per unit length of the tubes. Note that you are not supposed to perform any iterations. Just perform calculations for the first iteration with starting temperature of 80 degrees Celsius. For this iteration compute: a) New exit temperature of air from the tube bank b) Rate of heat transfer per unit length of the tubes c) Pressure drop for air flow across the tubes

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
icon
Related questions
Question

The answer options have been included 

rows in the flow
on this, determine the
orm iterations. Just
xit temperature of air. For
Rate of heat transfer (Wim)
Circle one below
1.2 x 105
9.8 x 10
9.6 x 10
1.0 x 10
Pressure drop (N/m2)
Circle one below
464
674
2735
OC
€
374
544
New exit temper
(°C)
Circle one bel
56
59
on
53
50
Transcribed Image Text:rows in the flow on this, determine the orm iterations. Just xit temperature of air. For Rate of heat transfer (Wim) Circle one below 1.2 x 105 9.8 x 10 9.6 x 10 1.0 x 10 Pressure drop (N/m2) Circle one below 464 674 2735 OC € 374 544 New exit temper (°C) Circle one bel 56 59 on 53 50
<
09:02
O LIVE ✓
Today
09:02
row.
Air is being heated with hot oil in banks. The tubes are made of an alloy with thermal conductivity (K =
310 W/mk). The hot oil is at a temperature of 125 degree Celsius and flows inside the tubes. The air
flows on the outside. Air enters at 20 degrees Celsius with a mean velocity of 5.8 m/s and at 1 atm. The
tubes are thin wall with a diameter of 2cm. The tubes are arranged in staggered arrangement with
longitudinal transverse pitches of S₁ =ST= 5cm. There are 21 rows in the flow direction with 8 tubes per
Edit
Assume an exit temperature of the air from the tube bank as 80 degrees Celsius and based on this,
determine the following per unit length of the tubes. Note that you are not supposed to perform any
iterations. Just perform calculations for the first iteration with starting temperature of 80 degrees
Celsius. For this iteration compute:
a) New exit temperature of air from the tube bank
b) Rate of heat transfer per unit length of the tubes
c) Pressure drop for air flow across the tubes
(i)
!!!!
Transcribed Image Text:< 09:02 O LIVE ✓ Today 09:02 row. Air is being heated with hot oil in banks. The tubes are made of an alloy with thermal conductivity (K = 310 W/mk). The hot oil is at a temperature of 125 degree Celsius and flows inside the tubes. The air flows on the outside. Air enters at 20 degrees Celsius with a mean velocity of 5.8 m/s and at 1 atm. The tubes are thin wall with a diameter of 2cm. The tubes are arranged in staggered arrangement with longitudinal transverse pitches of S₁ =ST= 5cm. There are 21 rows in the flow direction with 8 tubes per Edit Assume an exit temperature of the air from the tube bank as 80 degrees Celsius and based on this, determine the following per unit length of the tubes. Note that you are not supposed to perform any iterations. Just perform calculations for the first iteration with starting temperature of 80 degrees Celsius. For this iteration compute: a) New exit temperature of air from the tube bank b) Rate of heat transfer per unit length of the tubes c) Pressure drop for air flow across the tubes (i) !!!!
Expert Solution
steps

Step by step

Solved in 2 steps with 9 images

Blurred answer
Knowledge Booster
Convection
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.
Similar questions
  • SEE MORE QUESTIONS
Recommended textbooks for you
Elements Of Electromagnetics
Elements Of Electromagnetics
Mechanical Engineering
ISBN:
9780190698614
Author:
Sadiku, Matthew N. O.
Publisher:
Oxford University Press
Mechanics of Materials (10th Edition)
Mechanics of Materials (10th Edition)
Mechanical Engineering
ISBN:
9780134319650
Author:
Russell C. Hibbeler
Publisher:
PEARSON
Thermodynamics: An Engineering Approach
Thermodynamics: An Engineering Approach
Mechanical Engineering
ISBN:
9781259822674
Author:
Yunus A. Cengel Dr., Michael A. Boles
Publisher:
McGraw-Hill Education
Control Systems Engineering
Control Systems Engineering
Mechanical Engineering
ISBN:
9781118170519
Author:
Norman S. Nise
Publisher:
WILEY
Mechanics of Materials (MindTap Course List)
Mechanics of Materials (MindTap Course List)
Mechanical Engineering
ISBN:
9781337093347
Author:
Barry J. Goodno, James M. Gere
Publisher:
Cengage Learning
Engineering Mechanics: Statics
Engineering Mechanics: Statics
Mechanical Engineering
ISBN:
9781118807330
Author:
James L. Meriam, L. G. Kraige, J. N. Bolton
Publisher:
WILEY