#### Multipipe Systems: Screencast

Introduces the different types of multipipe systems.

We suggest you list the important points in this screencast as a way to increase retention.

##### Important Equations:

$\frac{P_1}{\gamma} + \frac{V_1 ^2}{2g} + z_1 = \frac{P_2}{\gamma} + \frac{V_2 ^2}{2g} + z_2 + h_L$where $$P_1$$ and $$P_2$$ are pressures, $$\gamma$$ is the specific weight of the fluid, $$g$$ is the gravitational constant, $$V_1$$ and $$V_2$$ are velocities $$z_1$$ and $$z_2$$ are heights, and $$h_L$$ is the head loss.

$$h_L$$ consists of two components, major and minor.

$h_{L,major} = f \frac{L}{D} \frac{V^2}{2g}$

where $$f$$ is the friction factor, $$D$$ is the pipe diameter, and $$L$$ is the length of the pipe.

$h_{L,minor} = \frac{K_L V^2}{2g} = \frac{f \frac{L_{eq}}{D} V^2}{2g}$

where $$K_L$$ is the minor loss coefficient and $$L_{eq}$$ is the equivalent length of the pipe.