Major losses occur in pipe network due to the friction between fluid and pipe wall. On the other hand, minor losses occur when the velocity of fluid changes. There are several reason for the change.
In this video, a simple example is used to illustrate the calculation revolving the minor head loss due to various condition. These conditions are contraction, valves or fittings, bends or branches and enlargement.
The procedure of calculation is similar for all conditions, where the loss coefficient is first determined accordingly. Then, the coefficient is multiplied with the velocity head, and producing the minor losses for that specific condition.
The following introduces the minor losses. Watch the video above for full details.
Problem overview
Head loss due to contraction
Entry loss calculation
Gradual contraction head loss calculation
Head loss due to valve
Valve head loss calculation
Head loss due to bend/ branch
Bend head loss calculation
Head loss due to enlargement
Gradual enlargement head loss calculation
Exit loss calculation
Minor head losses in the system
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