Explain why we use temperatures at high altitudes? | air-conditioning systems f. air planes despite the low ambient

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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Question
Refrigeration
200
180
20
Q3 :
Solo tempeate 15C
100
A- Choose the correct option of the following
40
40
20
1- Steam-jet water vapor refrigeration is used for
creating temperatures
(a) Above 3° C (b) Above 0°C (c) 0°C (d)
Below 3°C
-20
100
-40
2- The use of thermoelectric system
mainly depend on:
-100
-120
(a) Seebeck effect (b) Peltier effect (c)
Joulean effect (d) Thompson effect.
140
-160
3- Vortex Tube refrigeration systems used
for:
200
40
41
Pet y
(a) Room cooling (b) Ambient cooling (c) Green houses (d) Spot cooling
B- Explain why we use air-conditioning systems fo., air planes despite the low ambient
temperatures at high altitudes?
Transcribed Image Text:200 180 20 Q3 : Solo tempeate 15C 100 A- Choose the correct option of the following 40 40 20 1- Steam-jet water vapor refrigeration is used for creating temperatures (a) Above 3° C (b) Above 0°C (c) 0°C (d) Below 3°C -20 100 -40 2- The use of thermoelectric system mainly depend on: -100 -120 (a) Seebeck effect (b) Peltier effect (c) Joulean effect (d) Thompson effect. 140 -160 3- Vortex Tube refrigeration systems used for: 200 40 41 Pet y (a) Room cooling (b) Ambient cooling (c) Green houses (d) Spot cooling B- Explain why we use air-conditioning systems fo., air planes despite the low ambient temperatures at high altitudes?
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