fluid expt 1

8/6/2019 Fluid Expt 1

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Q(PER'MENT NO.: IMyE oF rHE EXPERT |4ENI:

Pe-rf orma.nce 'Te5;b of a- CenVrif zrVal Pump

NA M E: Ao-shig,-,a Atarn R'ezuanSTD. NO.: 06 IO Ot2SEC.: A GR OUP: AnDEPT. : t Aethanico-l E n qi rte.eri ngDATE oF ge PERF)RMANCE: 14/ o5/ttDATE OF suBMlSSloN: Oolo5/ll


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EXPERIMENT NO,: IEXPERIMENT NAME:Porformwlce Tbsb of & Cenwifz-r-gal PumpOBAECTIVES:Tha ob6ecvives of bhe,sA erperimonb CLyo &s FolloLus:

a'-To svudg bhQ- perform&nee ctaracaerievics ofbho PumP ab ConsAanb speed uhen va'Aing ahellous rObO

b"To comPate bho perlormxnce characberisDios olbho purnp ob difletenv speads b6 smitaribU TirctpLe

APPARATUS:-Tha followinys @ro z.r,sed )n bhis e,xperime,nD-

l. ELochric Mobor frttor,and Etecbrie.al Co. Lbel.H.ru, 2.1 . Volv: 2lQA; 2ooPR'P M 2gAO" RtoVtnA ' CON T, T6pe: Shzrr{

2 " Press?-Lre Gau-ge3. T:ochomeber4. Morcur\ Manom>Verb, @nArtfu4at Punp [Armfiald Ter.hnianl Educauion]


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SCHEMATIC UA1RAM:

Pump

dt-Ttu4so

hs

H

PumpC,cnLCi lir;r

ooooccooo

Fig, : CenL lif rr'Lcrl Pamp --.-a.gt U?


4/9

DATA:Suc,Aton .9i64 Diameber: 2 jnch :5O.8mmDol\ver6 Sjda Diameber: t. Sinch: 38.1 mm

CALCULATION:

No. olObervabior 5pd,

N,rpm

ManameberRPadix6foroisehar8eHvl,Irlrrt

SucbtonGaugeRe,ading.H ps,In

Del\ver6AaugzR^eading

14pd, m

I\namonehNeighDi

N,kB ]I 1600 lv t.t t.g 2_5aeL 155C^ I6 t.l t.B 2.O5z 145C/ t6 ,.o t.B 2.6834 I4bo to o.s 2.t 2.65 lSoo

t 350 5 o.va ".t 2.26 2 o.62 4.3 2"t3

No. ofOdv.rUablorl

Diseharge9, mo/s

Tobal HeadH, rrt

hPW PouterPin, kN

OUbpubPou)etPoyo, kN

Ellicienct6ryry"

l -Q2.42xlo 5.oog o.Bqg o.nBb t3.gg2 2.baxtrP 4.6Y1 o.65L o. t06" t 6.3g -a2.O\xlo" 4.5;24 o.7gg o.t04 13" ot4 -32.llxlo* --.- il.3xlo."

4.66985,40V

o.715o"6+9

o.o%7 t2.\B5 o.o6ag6 t0. t76 o.axfc3 6.bgb1 o.678 o.o62l v,68


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Roll No

--: MICRO @ 20cmx25cm


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54MPLL CALCULATION:Observabion Alo. : 3

JPee,d, N = /{t 50 rPmManomeDer Q,'eadin$t llm: l6mm of /-{3Slrc b'ion Hend, H s: I m ol LaabelDetiverg llaad, Hd: l-B m ol LaqverDt6namamaber @, Neighb, ltl = ).6A2 ag

.' . Dr'sch &rba t 9: O- SAAIF /{ in rnm ol l{B+ g- 2.344 0/s -39 2 "344xtotnVeloc\bt6ol noi)dvLLcVTort PiPe, \9.s:A :@* 'Us : !.156n/sG 2.ob44ntbuVe,locibt6 ol *rc;;* detiverlJ y\ee, Dd: tr: ffiffi"r^* llO - 2-O 56 n/s

Tobal HeaS, H : ha- /t"+ H: (load+zd *ui/zO)*U"astZs+vi/2g) [-ou hs being+ H : ft +- .B4 " mi * L,.a+ o- a*(ffi\": {:Z: ilf'+H - 4-52\m ol Daber

Inp*bPoNer,'Pin=-[-r-lJ:o.2x2'6B3xg,B,^#:o.7ggkNOubpuv Po*er, Poua--T OH: g.B lx 2.g4rrx(-oox 4 '524:O' lO 4kU-' Etrie\enc|, rl.,: +T-: +#.: o' too2 N Io'o27'


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DrscussroN:In hhis experinenb No have spzrdied o_c.enbrifugalpump and dobermines bho pe.rforrnqnce characturistrics,ol bho Pum P. Q-enbrifugal p urn ps consis v ol art inpe.(terrovaaing uivhin a spiral c-asing .Tho f (uid e.nvers bhePumPs aNiallry ahrough bho eu-cbiort pipo via tzho e:4oofbho inpetlQr ) iP is disc-hargad radiail6 from ahoimpe)te.raroand ahe e-rtvire. ci rc.urnfere*ce d*ter irruo & rinB ofguaDtonar6 diPferser vane,s or direc-b{6 invo &te, caaing,-Tho easing c, otlec;Vs Uhe f taid , dexelerabee tb_ tzhusoonverbing some of aho kinabic energu irtao pre*,eut^.,energA-a-nd finatlg disc hqrgee rhe f tud6sttverg flange bhroug{t vhern bhis expe-rirnenb, bha had decraaees a bhedischa rge i ncreAses T o el Fici oncy incre&*aa a.Lp boacexbain finip and vhen decreasas Ni*1 inere&s4n|digchar}e 1he Westmum elfiaonc| pound tor tshoPumP is aboub l4%.-l\o poiler inera&ses ujtzhtncreasi rig disc,ha"Ae Ln pua pouer incraaeas rno'r-e,sharplq ahan oubpub po uerREFERENCESl. Douprlcls, il. f,, GAs bre,k, A. M.) g waPfield, d . A ' ilack, LrB.,e'Flu\d Moc'harl'rc-E)): 20o5, pp A54


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ASSIGN f4ENT:WhU Dho Head on o- Cenariftrgal Pump de.rlrqtsoe nh.'ertbhe d,schar6e, is incru,seal2Ane:

tho l'@d ol d, @nvitPugl pump dec,reasas ui*t bhe,lncraeo of discharAe. Frorn, bernoulls e,qlf,+" #*z- consbanD0-6

Sro, uiUh bho incrense o* dischangg, bhe. ve)ociVg ofPloN lncre.ases in & &,e, frou area- -To l.aep pha wta(enArgg @ns7ant Ahe pre-seure, hAad daCraa,.Ses.-ho etficiena4 ol a- @nti Putgtl pump is maximun uhen )a isrun'vt\ ab irs deaign speed an{ de.ti vqbi"g bhe de,sign

,/^'\ '3Cr\


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discharge. Lr hho discha-rga is increaeed uhere isa- loee of head dUo Po shoCk aD enbr1 and Ahe, elficienc1drops. -\fi.o /oes ol head is given b6,

Hr: g frelerrinfl ao lho +,4**]P2g-__\ t, (v'eoao- u)'_q nL_ n

fluid expt 1

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