Answer / baskar

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.

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.

Answer / abhinav

reduce

Answer / sachin khandait

there will be only some frictional losses in the pipe if
it horizontal and the pipe is uniform throuout.

Answer / guest

halved

Answer / rahaman

p1-p2=32uvl/d
if length is doubled the pressure drop also gets doubled

Answer / junaid_1215

It will be half of last value

how many TDS & TOTAL HARDNESS, PH of drinking water is recomanded for human being use.

4 Answers  

Define octane number?

0 Answers  

what is petrol density ? why ?

3 Answers   Reliance,

What are the different characteristics that can affect the flow of bulk solids and how?

0 Answers  

what is Vx-EHT(RED) complex chemical compound.

1 Answers   Excel,

How to caliculate the boil up rate, dia and height in both packed and tray distillation columns and any referance books for the design.

0 Answers  

While there, are many tests available to detect leaks on vessels, is there a technology available to quantify the leak, or measure the flow through a leak?

0 Answers  

Why is double the amount of gas collected in one of the test tubes in electrolysis of water than th amount collected in the other? Name this gas?

0 Answers  

What are the steps involved in wine making?

2 Answers   Aramco,

What is minimum flow required of NG having BTU value of 920 btu/scf for flame stability of LBTU gas of BTU value 220 BTU/SCF against the flow 80KPPH.

0 Answers  

THERMODYNAMIC - EXAMPLE 10.1 : The water is superheated steam at 440 degree Celsius and 17.32 megapascals. Estimate the enthalpy of the steam above. From the steam table for water at 440 degree Celsius, enthalpy of steam, h at 18 megapascals is 3103.7 kilojoules per kilogram and at 16 megapascal is 3062.8 kilojoules per kilogram. Assume that h = mP + c where P is pressure; m and c are constants at fixed temperature with small differences in P.

1 Answers  

PETROLEUM ENGINEERING - QUESTION 25.2 : (a) The American Petroleum Institute gravity, or API gravity, is a measure of how heavy or light a petroleum liquid is compared to water. Let SG = specific gravity of petroleum liquid, and V = barrels of crude oil per metric ton. Given the formula for API gravity = 141.5 / SG - 131.5 and V = (API gravity + 131.5) / (141.5 x 0.159), find the relationship of SG as a function of V. (b) An oil barrel is about 159 litres. If a cylinder with diameter d = 50 cm and height h = 50 cm is used to contain the oil, find the volume V of the cylinder in the unit of oil barrel by using the formula V = 3.142 x d x h x d / 4. (c) First reference : 1 cubic metre = 6.2898 oil barrels. Second reference : 1 cubic metre = 6.37 oil barrels. What are the 2 factors that cause the difference in such reference data?

1 Answers