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RELATORIO 8 - Perda de Carga Localizada

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Relatório prática de fluidos
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  ESCOLA DE ENGENHARIA DE PIRACICABAFundação Municipal de Ensino de Piracicaa Av. Monsenhor Martinho Salgot, nº 560 – Bairro AreãoCEP: 131!00 – Pira i a#a SP$one: %01&' 3(1!&)( Prática  ! Perda de Car#a locali$ada  André Rosaboni Fernandez201200700 Carlos Eduardo Vaz 201200697 Daniel Rodriues Carlos201200716  Piracicaba  2014 ! D#CE  1$ %&'E(#V%)))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))*2 # (R%D+,-%))))))))))))))))))))))))))))))))))))))))))))))))))))))))))* 2$1$ Conceitos)))))))))))))))))))))))))))))))))))))))))* *$ .ontae/)))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))7 $ .etodoloia do Ensaio))))))))))))))))))))))))))))))))))))))))))))))))))7 $ Dados e #nterreta34o)))))))))))))))))))))))))))))))))))))))))))))))))))5 6$ Conclus4o))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))11 %& &iblioraia  '''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''() (  ( * OB+E,I-OS Me*i*a *a +er*a singlar e- t#la/es o- - registro *e gaveta, evanta-ento *a rva ara tersti a *a anali2aão. Co-+araão o- as 4r-las te4ri as tili2a*as +ara o l lo. ) * IN,ROD./0O  es oa-ento e- *tos 7 est*o *e gran*e i-+ort8n ia, +ois *tos são res+onsveis +elotrans+orte *e l*os *es*e os +ri-4r*ios *a ivili2aão.Por volta *e 1)00, *tos *e -a*eira srgira- nas i*a*es *e Montreal e Boston, na A-7ri a*o 9orte, os ais era- onstr*os +erran*o tron os *e -a*eira. M;lti+los t#os assi- o#ti*osera- instala*os e ve*a*os nas e<tre-i*a*es o- gor*ra ani-al ae i*a, +ore- ho=e, os *tos-ais -o*ernos são onstr*os *e vrios ti+os *e -ateriais -etli os, *e -aterial +lsti o, *e on reto, *e -etal revesti*o interna-ente o- +lsti o o i-ento et . 9o +assa*o, os *tos era- essen ial-ente tili2a*os no trans+orte *e ga. Atal-ente os*tos são tili2a*os no trans+orte *e li*os e gases *os -ais *iversos ti+os e e- vrias sita/es.>an*o os *tos são a o+la*os a -e anis-os *e #o-#ea-ento a*ea*os, or-a- - siste-a e +er-ite o#rir - range *e *ist8n ias e +o*e hegar a -ilhares *e il?-etros. s *tos +o*e-ser instala*os enterra*os, a 7 a#erto e s#ati o, e re+resenta-, ho=e e- *ia, - siste-a *etrans+orte in*is+ensvel @ e ono-ia -n*ial.-a *ierena #si a *o es oa-ento e- *tos e anais 7 e, enanto nos anais a seão*o es oa-ento varia, +ois *e+en*e *a va2ão trans+orta*a, nos *tos, nor-al-ente, a seão *ees oa-ento o +a to*a a seão transversal *is+onvel no *to, in*e+en*ente-ente, at7 erto li-ite,*a va2ão e 7 trans+orta*a. - es oa-ento e- *to o- essa ara tersti a 7 onhe i*o o-oes oa-ento e- *to ora*o.o +onto *e vista *a Me 8ni a *os $l*os, o te-a entral *e interesse são as ara tersti as*o es oa-ento *os l*os no interior *e *tos e, *evi*o @ sa i-+ort8n ia, o l lo *a +er*a *e arga, +ois *ela *e+en*e o +ro=eto e *i-ensiona-ento *as instala/es *e trans+orte *e l*os. )&( * Perda dis1riu2da - l*o, es oan*o e- - *to, sore inln ia *as +are*es o asiona*a +elo atrito. Essa inln ia tra*2!se e- +er*a *e +ressão ao longo *o o-+ri-ento. a*o - t#o, *e *i8-etro  e 3  o-+ri-ento , no al +assa -a va2ão >, onor-e o ese-a *a igra +o*e!se *i2er e a *ierena *a +ressão total entre as se/es 1 e ( re+resenta a +er*a *e arga no on*to. $igra 1 – D#laão on*2in*o -a va2ão >. Po*e!se es rever, +ara a +er*a *e arga P: 1 ¿+ 12  ρv 12 +  ρgz 1 −  P 2 − 12  ρ v 22 −  ρgz 2  P =  P ¿ n*e:P  +ressão estti a %FgG- ( 'v  velo i*a*e %-Gs'2  ota %-' ρ = massa específica (UTM/m³) )&) * Perda sin#ular M7to*o *o Co-+ri-ento Eivalente-a anali2aão e +ossi ao longo *e sa e<tensão *iversas singlari*a*es, eivale, so#o +onto *e vista *e +er*a *e arga, a -en ana-ento retilneo *e o-+ri-ento -aior,se- singlari*a*es. -7to*o onsiste e- a*i ionar @e<tensão *a anali2aão, +ara eeito *e l lo, o-+ri-entos tais e orres+on*a- @ -es-a +er*a *e arga e asaria- as singlari*a*ese<istentes na anali2aão.  $igra ( – M7to*o o-+ri-ento eivalente. 
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