Hot water with the mass flow rate of 3 kg/s and temperature of 90 C enters a 2 inch copper pipe with the length of 3 m. The pipe is exposed to cold air at the constant temperature of 1C and wind velocity is 5 m/s. Find the outlet temperature of water and the rate of heat loss from the pipe.
Given data:
We will first find the external convection heat transfer coefficient,
Reynold's Number =
where
The appropriate Nusselt Number from Heat Transfer Data book is:
where
Also, we know,
where
Now, we shall find the internal convective heat transfer coeff =
Reynold's Number =
where
The appropriate Nusselt Number from Heat Transfer Data book is:
where
Also, we know,
where
-----
There are 3 thermal resistances present:
-----
Internal Heat Convection (R1):
Thermal Resistance =
where
Thermal Resistance =
-----
External Heat Convection (R2)
Thermal Resistance =
where
Thermal Resistance =
------
The total resistance =
Thus, the total heat transferred in steady state:
where
The amount of heat transfer can be written as:
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Hot water with the mass flow rate of 3 kg/s and temperature of 90 C enters...
Hot water with the mass flow rate of 3 kg/s and temperature of 90 C enters a 2 inch copper pipe with the length of 3 m. The pipe is exposed to cold air at the constant temperature of 1C and wind velocity is 5 m/s. Find the outlet temperature of water and the rate of heat loss from the pipe.
Hot water with the mass flow rate of 3 kg/s and temperature of 90 C enters a 2 inch copper pipe with the length of 3 m. The pipe is exposed to cold air at the constant temperature of 1C and wind velocity is 5 m/s. Find the outlet temperature of water and the rate of heat loss from the pipe
Hot water with the mass flow rate of 3 kg/s and temperature of 90 C enters a 2 inch copper pipe with the length of 3 m. The pipe is exposed to cold air at the constant temperature of 1C and wind velocity is 5 m/s. Find the outlet temperature of water and the rate of heat loss from the pipe.
Hot water with the mass flow rate of 3 kg/s and temperature of 90 C enters a 2 inch copper pipe with the length of 3 m. The pipe is exposed to cold air at the constant temperature of 1C and wind velocity is 5 m/s. Find the outlet temperature of water and the rate of heat loss from the pipe.
Hot water with the mass flow rate of 3 kg/s and temperature of 90 C enters a 2 inch copper pipe with the length of 3 m. The pipe is exposed to cold air at the constant temperature of 1C and wind velocity is 5 m/s. Find the outlet temperature of water and the rate of heat loss from the pipe. P2: 20%
Hot water with a mass flow rate of 3 kg/s and a temperature of 90 degrees Celsius enters a 2-inch copper pipe with a length of 3 m. The pipe is exposed to cold air at the constant temperature of 1C and wind velocity is 5 m/s. Find the outlet temperature of the water and the rate of heat loss from the pipe.
Hot water with the mass flow rate of 3 kg/s and temperature of 90 Centers a 2 inch copper pipe with the length of 3 m. The pipe is exposed to cold air at the constant temperature of 1C and wind velocity is 5 m/s. Find the outlet temperature of water and the rate of heat loss from the pipe.
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