It’s less then one
Effectiveness of heat exchanger is defined as the ratio of actual heat transfer rate to the maximum possible heat transfer rate. Since the actual heat transfer is always less than maximum possible heat transfer effectiveness is always less than one
Answer:
222.5 Gpa
Explanation:
From definition of engineering stress,
where F is applied force and A is original area
Also, engineering strain, where l is original area and is elongation
We also know that Hooke's law states that
Since A=20 mm* 20 mm= 0.02 m*0.02 m
F= 89000 N
l= 100 mm= 0.1 m
By substitution we obtain
Answer: 2.4 x 10^8 Joules
Explanation:
1. 10m x 10 m =100 m^2
Or (10 x 100 )cm x (10 x 100)cm = 1,000,000cm^2
2. Converting to an hour: 1 hour= 60 minutes
3. 4.0 J x 1,000,000 x 60 minutes ^ -1 = 2.4 x 10^8 J
Answer:
Explanation:
from figure
taking summation of force in x direction be zero
.....1
taking summation of force in Y direction be zero
.........2
putting T value in equation 1
.........3
Water at 10 degree C has kinetic viscosity v = 1.3 \times 10^{-6} m^2/s
Reynold number
so for Re = cd is 0.072
degree