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FC_plate_vertical

 

 

The procedure FC_plate_vertical(Fluid$, T_s, T_infinity, P, L : h, Nusselt, Ra) returns the heat transfer coefficient, Nusselt number and Rayleigh number for a vertical flat plate (heated or cooled) of length L in the manner described in section 6.2.2 of Nellis and Klein.  The width of the plate is assumed sufficiently large such that end effects may be neglected.  The units of the inputs and outputs depend on the unit settings in EES.  The magnitude of gravity is assumed to be 9.807 [m/s^2]. 

 

Inputs:

Fluid$ - string name of any fluid in the EES database. The fluid can be an ideal gas or a real fluid

T_s - surface temperature of the plate in [C], [K], [F], or [R].

T_infinity - bulk temperature of the fluid in [C], [K], [F], or [R].

P -  ambient pressure in [Pa], [kPa], [bar], [MPa], [atm], or [psia]

L - length of the plate [m] or [ft]

 

Outputs:

h -  heat transfer coefficient in [W/m^2-K] or [Btu/hr-ft^2-R] 

Nusselt - Nusselt number [-]

Ra - Rayleigh number [-]

 

Notes:

The procedure FC_plate_vertical is responsible for determining the fluid properties, and calculating the Rayleigh and Prandtl numbers. Once these values are found, the non-dimensional procedure FC_plate_vertical_ND is called to calculate the Nusselt number. FC_plate_vertical, in turn, uses the Nusselt number to calculate the coefficient of heat transfer.

 

Example:

$UnitSystem SI deg K J Pa

$VarInfo h units=W/m^2-K

Fluid$='air'

T_s=350 [K]

T_infinity=300 [K]

P=101300 [Pa]

L=0.5 [m]

W=0.5 [m]

tilt=45 [deg]

Call fc_plate_vertical(Fluid$, T_s, T_infinity, P, L: h, Nusselt, Ra) 

 

{Solution:  

h=5.16 [W/m^2-K]

Nusselt=93.86

Ra=4.128E+08}

 

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