DuctBend_Rect_CL
Returns the pressure drop in a rectangular duct bend given the fluid, its flow rate and state, the width and height of the duct, the bend radius, and the turning angle. This function calls the function K_Bend_Rect from the minor loss category of the heat transfer library.
DELTAP = DuctBend_Rect_CL(F$, m_dot, T, P, b, W, r, alpha)
Inputs:
F$: fluid string identifier
m_dot: mass flow rate (kg/s, lbm/hr)
T: inlet temperature (K, C, F, or R)
P: inlet pressure (bar, atm, Pa, kPa, or MPa)
b: duct width (m or ft)
W: duct height (m or ft)
r: turning radius (m or ft)
alpha: turning angle (radian or degree)
Output:
DELTAP: pressure drop (bar, atm, Pa kPa, or MPa)
Example:
$Load Component Library
$UnitSystem SI Mass J K Pa Degree
$VarInfo DP_Duct units=Pa
m_dot = 0.25 [kg/s]
T = 300 [K]
P = 100e3 [Pa]
b = 0.2 [m]
W = 0.1 [m]
r = 0.15 [m]
alpha=65 [degree]
F$ = 'Air'
DP_Duct = ductbend_rect_cl(F$, m_dot, T, P, b, W, r, alpha)
{Solution:
DP_Duct = 10.72 [Pa]}