The engine oil at 150 degree Celsius is cooled to 80 degree Celsius in a parallel flow heat exchanger by water entering at 25 de
gree Celsius and leaving at 60 degree Celsius. Estimate the number of transfer units If you think you require the specific heats for water and oil, use 4.18 and 2.20 respectively
1 answer:
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Answer:
0.17 degrees
Explanation:
From the question we are given the following:
acceleration due to gravity =
radius (r) = 6.5 cm = 0.065 m
time (s) = 9.3 s
angle = ?
- we first have to calculate the distance the water moves, and this is the circumference of the microwave
circumference = 2 x π x r = 2 x π x 0.065 = 0.408 m
- Now we find the speed with which it moves at
speed =
= = 0.044
- The next step is to find the centripetal acceleration
a =
= = 0.03
being a vector quantity, acceleration has direction, the centripetal acceleration is the x component while the y component would be the acceleration due to gravity (g)
A = 0.03 x + 9.8 y
to find the angle we can apply tan θ =
θ = 0.17 degrees