Answer:
A) i) 984.32 sec
ii) 272.497° C
B) It has an advantage
C) attached below
Explanation:
Given data :
P = 2700 Kg/m^3
c = 950 J/kg*k
k = 240 W/m*K
Temp at which gas enters the storage unit = 300° C
Ti ( initial temp of sphere ) = 25°C
convection heat transfer coefficient ( h ) = 75 W/m^2*k
<u>A) Determine how long it takes a sphere near the inlet of the system to accumulate 90% of the maximum possible energy and the corresponding temperature at the center of sphere</u>
First step determine the Biot Number
characteristic length( Lc ) = ro / 3 = 0.0375 / 3 = 0.0125
Biot number ( Bi ) = hLc / k = (75)*(0.0125) / 40 = 3.906*10^-3
Given that the value of the Biot number is less than 0.01 we will apply the lumped capacitance method
attached below is a detailed solution of the given problem
<u>B) The physical properties are copper</u>
Pcu = 8900kg/m^3)
Cp.cu = 380 J/kg.k
It has an advantage over Aluminum
C<u>) Determine how long it takes a sphere near the inlet of the system to accumulate 90% of the maximum possible energy and the corresponding temperature at the center of sphere</u>
Given that:
P = 2200 Kg/m^3
c = 840 J/kg*k
k = 1.4 W/m*K
Answer:
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Answer:
if (code == 'Y')
cout << "This is a check\n";
Explanation:
I believe you want to check whether it is equal to "Y", because there is no option that checks "C". You may see the correct structure above, none of the option you provided is totally correct.
In order to check the character, we need to use if statement. Also, since "Y" is a character, we need to use ' ' not " ".
To output "This is a check", we need to use cout. The string should be inside " " not ' ' or ' ".
To have a new line, we may use \n. At the end, we need to use ; not :
The answer is: Work below ground level.
Explanation:
Δ
= Δ
(1)
= 
Q = 32,800 N
now put this value in equation 1.
Deflection of B = 
= 0.0728 mm
