4. Air is compressed polytropically from 101 kPa and 23°C and delivered to a tank at 1500 kPa and 175°C. Determine per kilogram of air (a) the value of n. b) power need in KW for 1 kg/sec of air. Useful data: k of air = 1.4, Rair= 0.287 KJ/Kgm-K; k of He = 1.66, RHe = 2.078 KJ/Kgm-K
4. Air is compressed polytropically from 101 kPa and 23°C and delivered to a tank at 1500 kPa and 175°C. Determine per kilogram of air (a) the value of n. b) power need in KW for 1 kg/sec of air. Useful data: k of air = 1.4, Rair= 0.287 KJ/Kgm-K; k of He = 1.66, RHe = 2.078 KJ/Kgm-K
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
![V
S
Air is compressed polytropically from 101 kPa and
23°C and delivered to a tank at 1500 kPa and 175°C.
Determine per kilogram of air (a) the value of n.
b) power need in KW for 1 kg/sec of air.
Useful data: k of air = 1.4, Rair= 0.287 KJ/Kgm-K;
k of He = 1.66, RHe = 2.078 KJ/Kgm-K
5.a
5.b
P
T
S](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F78faef1f-af7d-4b18-8cfd-2dead0a982c5%2Faa6c92c2-a30a-4d54-be3a-6d9470be45e4%2Fml6qkej_processed.jpeg&w=3840&q=75)
Transcribed Image Text:V
S
Air is compressed polytropically from 101 kPa and
23°C and delivered to a tank at 1500 kPa and 175°C.
Determine per kilogram of air (a) the value of n.
b) power need in KW for 1 kg/sec of air.
Useful data: k of air = 1.4, Rair= 0.287 KJ/Kgm-K;
k of He = 1.66, RHe = 2.078 KJ/Kgm-K
5.a
5.b
P
T
S
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