The relation between effective thermal conductivity of a packed bed an – McqOptions

MCQOPTIONS

1.	The relation between effective thermal conductivity of a packed bed and the thermal conductivity of the gas is?
A.	( frac{Ke}{Kg} )=5+0.1RePr
B.	( frac{Ke}{Kg} )=5
C.	( frac{Ke}{Kg} )=5+0.1Re
D.	( frac{Ke}{Kg} )=5+0.1RePr<sup>0.33</sup>
Answer» B. ( frac{Ke}{Kg} )=5

Discussion

No Comment Found

Related MCQs

The relations established for the calculation of heat transfer coefficients is applicable for which of the following?
What is the term X in the calculation of Nusselt Number for the wall side?<br>Nu=X Re<sup>0.5</sup> Pr<sup>0.33</sup>
What is the Nusselt number for the wall side if give Reynolds number = 12000 and Prantl number = 0.47?
For the Calculation of h<sub>wall</sub>, identify the correct relation.
In the given relation, they Reynolds number is calculated with the ______ and the Prantl Number for the _______<br> ( frac{Ke}{Kg} )=5+0.1RePr
The relation between effective thermal conductivity of a packed bed and the thermal conductivity of the gas is?
The effective thermal conductivity of a packed bed is almost ____ the Thermal Conductivity of the gas.
Calculate the heat transfer coefficient of bed if the effective thermal conductivity is 15W/mK and 30mm diameter tube.
What is the term Ke in the expression for h<sub>BED</sub>?<br>h<sub>BED</sub> = ( frac{4Ke}{r} )
To predict the heat transfer for different particles or different tube size, the heat transfer coefficient can be represented as ( frac{1}{hi} = frac{1}{hwall}+ frac{1}{hbed} ).