Table 1: Parameters Current Heat Flow Cross Sectional Area of the bar Temperature Difference in Heated Section Conductivity in Heated Section Temperature Difference in Intermediate Section Equations Heater Voltage (12V) Heater Voltage(17V) 1.2 Q = VI (watts) 14.4 1.69 28.73 A = πD²/4 (m²) 4.909* 104 4.909104 AThot T1-T3 (°C) 8.11 13.4 Khat X13Q/A Thot A 108.64 131.03 ATint= T₁ - T5 (°C) 1.3 4.3 Conductivity in Intermediate Section Kint X45Q/ATint A 336.90 204.15 Temperature Difference in Cooled Section = ATcold T6-T8 (°C) 6.2 11.79 Conductivity in Cooled Section Kcold X68 Q/ATcold A 141.94 148.92 On Accessibility: Investigate 80.0 70.0 60.0 Temperature/Position along the bar 50.0 40.0 30.0 20.0 10.0 0.0 0.0 20.0 40.0 60.0 80.0 100.0 120.0 140.0 Temperature Readings at 17V [°C] -Temperature Readings at 12V [°C] ANALYSIS
Table 1: Parameters Current Heat Flow Cross Sectional Area of the bar Temperature Difference in Heated Section Conductivity in Heated Section Temperature Difference in Intermediate Section Equations Heater Voltage (12V) Heater Voltage(17V) 1.2 Q = VI (watts) 14.4 1.69 28.73 A = πD²/4 (m²) 4.909* 104 4.909104 AThot T1-T3 (°C) 8.11 13.4 Khat X13Q/A Thot A 108.64 131.03 ATint= T₁ - T5 (°C) 1.3 4.3 Conductivity in Intermediate Section Kint X45Q/ATint A 336.90 204.15 Temperature Difference in Cooled Section = ATcold T6-T8 (°C) 6.2 11.79 Conductivity in Cooled Section Kcold X68 Q/ATcold A 141.94 148.92 On Accessibility: Investigate 80.0 70.0 60.0 Temperature/Position along the bar 50.0 40.0 30.0 20.0 10.0 0.0 0.0 20.0 40.0 60.0 80.0 100.0 120.0 140.0 Temperature Readings at 17V [°C] -Temperature Readings at 12V [°C] ANALYSIS
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
| Parameter | symbol | units | reading 1 | Reading 2 |
| Heater Volatge | V | volts | 12 | 27 |
| Heater Current | I | amps | 1.2 | 1.69 |
| Heated section High Temperatuer | T1 | degrees Celcius | 47.1 | 72.4 |
| Heated Section Mid Temperature | T2 | degrees celcius | 42.4 | 65.6 |
| Heated Section Low Temperature | T3 | degrees celcius | 39 | 59 |
| Intermediate section High Temperature | T4 | degrees celcius | 34.4 | 50.1 |
| Intermediate Section mid Temperature | T5 | degrees celcius | 33.1 | 45.8 |
| Cooled Section High Temperature | T6 | degrees celcius | 27.1 | 35.6 |
| Cooled Section Mid Temperature | T7 | degrees celcius | 23.8 | 29.5 |
| Cooled section Low Temperature | T8 | degrees celcius | 20.9 | 23.9 |
| Cooling Water Flow Rate | Litres/min | 1.43 | 1.5 |
the above results are from a linear heat conduction experiment conducted using the Armfield HT10XC Heat Service Unit. The aim of the experiment is to use the Fourier'rate equation ( Q = -kA(dT/dx) to determine the rate of heat flow through solid materials. Given the following parameters:
- T1 and T3 X13 = 0.03m
- T4 and T5 X45 = 0.015m
3. T6 and T8 X68 = 0.03m
4. Diameter of the brass bar D = 0.025m, the parameters in the attached table were calculated and the ''temperature'' against ''position along the bar'' graph was plotted as seen in the attached document.
Analyze the above results using the following pointers:
Transcribed Image Text:Table 1:
Parameters
Current
Heat Flow
Cross Sectional Area of the bar
Temperature Difference in Heated
Section
Conductivity in Heated Section
Temperature Difference in
Intermediate Section
Equations
Heater Voltage
(12V)
Heater
Voltage(17V)
1.2
Q
= VI (watts)
14.4
1.69
28.73
A = πD²/4 (m²)
4.909* 104
4.909104
AThot T1-T3 (°C)
8.11
13.4
Khat X13Q/A Thot A
108.64
131.03
ATint= T₁ - T5 (°C)
1.3
4.3
Conductivity in Intermediate Section
Kint X45Q/ATint A
336.90
204.15
Temperature Difference in Cooled
Section
=
ATcold T6-T8 (°C)
6.2
11.79
Conductivity in Cooled Section
Kcold X68 Q/ATcold A
141.94
148.92
On Accessibility: Investigate
![80.0
70.0
60.0
Temperature/Position along the bar
50.0
40.0
30.0
20.0
10.0
0.0
0.0
20.0
40.0
60.0
80.0
100.0
120.0
140.0
Temperature Readings at 17V [°C]
-Temperature Readings at 12V [°C]
ANALYSIS](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F5674161e-0912-477a-aebe-0f1db6be3465%2Ff701dd4f-2dda-4021-b2a3-9573b1d243c6%2F52r1yzd_processed.jpeg&w=3840&q=75)
Transcribed Image Text:80.0
70.0
60.0
Temperature/Position along the bar
50.0
40.0
30.0
20.0
10.0
0.0
0.0
20.0
40.0
60.0
80.0
100.0
120.0
140.0
Temperature Readings at 17V [°C]
-Temperature Readings at 12V [°C]
ANALYSIS
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