if the length of a pipe doubled what will be the effect on
Pressure in line?
Answers were Sorted based on User's Feedback
If it is a gas then the pressure will reduce to half .Use
the below gas equation,
p1/p2 = v1/v2
If it is an incompressible fluid,also the pressure gets
reduced.Then the major loss of energy in pipe is caused by
friction in pipe.It may be computed by Darcy-weisbach
equation.
Head loss due to friction hf = 4fLV2/2gD
where,
f= friction factor
L=length of pipe
v=velocity of the fluid
D=diameter of the pipe
If L is doubled obviously friction increases and therfore
the pressure is reduced.
Is This Answer Correct ? | 16 Yes | 3 No |
Answer / venkatesh a
In pipes lines,As per the pascal law "even though the length is increased pressure will be the constant, if the pipe is not having any leakage".
Flow rate only can decrease with respect to the length as mentioned in answer-3.
Is This Answer Correct ? | 11 Yes | 2 No |
Answer / sachin khandait
there will be only some frictional losses in the pipe if
it horizontal and the pipe is uniform throuout.
Is This Answer Correct ? | 1 Yes | 0 No |
Answer / rahaman
p1-p2=32uvl/d
if length is doubled the pressure drop also gets doubled
Is This Answer Correct ? | 1 Yes | 3 No |
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