Heat Flow thru a cylindrical wall PV to External Sea Water / Air.
09 /06/17
REQUIRED:
Find the interior air temp. for a given convective/conductive heat flow to CH2O
or Air. Given Temp. and input watts.
GIVEN:
PV TUBE:
6061-T6 Aluminum
ID dia. (d):
OD dia. (D):
Case Length in.
Thermal Conductivity. (k):
INTERIOR AIR (forced convection)
Air Velocity (v):
Convection Coeff.
Note! - this is an empirical equation and can be used for velocities - v - from 2 to 20 m/s.
Interior Heat to be Transfered (Q_air):
Interior Heat to be Transfered (Q_air):
EXTERIOR AIR (free convection):
EXTERIOR WATER (free convection):
Convection Coeff:
Convection Coeff:
Free Air Temp (T.o):
Free Water Temp (T.o):
ASSUME:
ASSUME:
1. Thick Wall Tube.
1. Thick Wall Tube.
SOLUTION:
SOLUTION:
Inner Area of Tube (A.i):
Inner Area of Tube (A.i):
Outer Area of Tube (A.o):
Outer Area of Tube (A.o):
Log Mean Area of Tube Body (A.lm):
Log Mean Area of Tube Body (A.lm):
Over All Heat Tranfer Coeff.
Over All Heat Tranfer Coeff.
Interior Free Air Temp (T.i):
Interior Free Air Temp (T.i):