Google Slides is most similar to which of the following programs?
2 answers:
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Given Information:
Qin = 8*10 = 80 W
Win = 25 W
Temperature = T2-T1 = 10°C
Required Information:
(a) flow rate of the air = m = ?
(b) fraction of the temperature rise of air = f = ?
Answer:
(a) flow rate of the air m = 0.01044 kg/s
(b) fraction of the temperature rise of air f = 23.8 %
Solution:
(a) The flow rate of the air that fan needs to deliver can be found by
Where the value of specific heat of air is 1005 j/kg.C
m = (80 + 25)/1005*10
m = 0.01044 kg/s
(b) fraction of the temperature rise of air due to fan
ΔT = Q/mCp
ΔT = 25/0.01044*1005
ΔT = 2.38°C
So the fan causes a temperature rise of 2.38°C
f = ΔT/T2-T1
f = 2.38/10
f = 0.238 = 23.8 %