309-F5 - K.F.U.P.M CHEMICAL ENGINEREEING DEPARTMENT...

Info iconThis preview shows pages 1–4. Sign up to view the full content.

View Full Document Right Arrow Icon
K.F.U.P.M. CHEMICAL ENGINEREEING DEPARTMENT CHE-309 (f-5) SECT # 3 Group # 1A Done By :Khan, Faisal ID # 926952 Partner # 1 : Al-Shehri ,Sultan ID # 924798 Partner # 2 : Al-Dossary ,Nasser ID # 924870 Done For : Mr. Yahya Running Date : NOV. 18, 96 Submission Date: NOV. 25, 96
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Abstract : In this experiment,we were able to estimate the head losses in different sorts of valves and piping connections assembled in two separate hydraulic pipes circuits .Experimental values of loss coefficient (K),the relation between friction coefficient (f)and Reynolds number for a straight pipe,the relation between flow rate (Q)and head loss(h L )were found. Their theoretical values were calculated and compared to the experimental values.For instance,the error % for (h L ) for the pipes with sudden expansion and (Q = 3.177 E-4 m 3 /s) was found to be 19.4% while with the same (Q) the error % for the sudden contraction was 80%.For the same pipe ,the experimental relation (F= 4.456Re -.6465 ) was compared with the literature value to produce an error % of( 20 %).
Background image of page 2
Introduction : In chemical processes, a lot of pipes connections are involved to carry the treated fluids. During fluid transfer,a pressure loss exists due to the change in the flow phenomena such as, a change in pipes diameter or flow direction which cause a resistance of fittings or valves to let the fluid pass smoothly.Pressure loss in pipe circuit is sorted into one due to the viscous resistance throughout the whole system and another due to fitting and pointed effects .The overall loss is the sum of both.So,we can say the total loss can be different than the sum of the losses of the separate components.By conducting this experiment, we’ll be able to find the pressure losses across to different systems .Also, for the straight pipe portion, the relations (f Vs Re)and(Q Vs h L ) will be generated. Theoretical Background : For an incompressible fluid flowing through a pipe the continuity eq. (Q=V 1 A 1 =V 2 A 2 ) is applicable . The head loss in constant diameter straight pipe can be calculated from the expression: (h L = 2f LV 2 / gd ),while f is the friction factor = f (Re,roughness). The head loss that is caused by a sudden expansion can obtained from the equation:
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 4
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 09/27/2011 for the course CHEMICAL E CHE 309 taught by Professor M.elgaily during the Fall '09 term at King Fahd University of Petroleum & Minerals.

Page1 / 7

309-F5 - K.F.U.P.M CHEMICAL ENGINEREEING DEPARTMENT...

This preview shows document pages 1 - 4. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online