Puente Mixto

Esquema del sifon:

Cot.I= 1514.07 Cot.s= 1513.57 1.0

0.5

Datos: Qd= Qd= R1= R2=

0.20 0.205 5 [m^ [m^3/s] 3/s] 1.80 [m] 1.40 [m]

9.7 6

α1=   45.00 45.00 [grad] [grad]

α  1

α2=   72.35 72.35 [grad] [grad] Δz=

0.50

 R 1

[m]

R2

α 2

Desnive

D= 14. 14.00 [! [!g]

8.2

"s#mi s#mido do 2

 L V  hf  = f ∗ ∗  D 2∗g

Perdidas por friccion;

 "s#minedo de %#e&

v=

1.145'(0) Re =

 "s#miendo #n diametro de&

[m^2/ *ara +=17 grad ,tem!erat#ra midia en +ari-a

V ∗ D υ

V =

4∗Qd

π ∗ D

2

D= 14.00 [!g] =

2.0)41

[m/s]

Re= )410571 )4105713. 3. [adim] [adim] a e#aion %#e se #tiiara !ara determinar  ,Coeroo6

1

√ f f 

=−2∗ Log

Donde&

(

e 3.71∗ D e=

+

  2.50 Re* √ f 

0.05

)

[mm]

'n des!e-ada&

ong#it#d tota&

Lt= 25.40 [m] hf= 0.1989 [m]

*or o tanto&

2

hf  = K ∗

 Log

(

e 3 . 7 1∗ D

R#gosidad reativa !ara ierro #ndido

f= 0.01 0.0128 282 2

 "demas

0.25

f  =

V 

2∗g

+

5.74 Re

0.90

)

2

2

Perdidas locales:

hf  = K ∗

V 

2∗g

o Perdidas por entrada:

he = K ∗

( Vs −Vo )

= 0.5 De taas o=s/2

2

2∗ g

9e=

0.02715

()

 s  K =Cf ∗ b

o Perdidas por rejilla: θ=   0

s= 2.0)41 o= 1.0321

[m]

4/ 3

∗Sen ( θ )

[grad] s=3/8:= 0.005 [m] = 0.03 [m] C= 1.7 [m]

hr = K ∗

( Vs )

2

Donde&

=  0.34))1

2∗ g

hr= 0.075 [m]

o Perdidas por cambio de direccion:

 K =Cc∗

α 

90

Con&

R1=

1.80

[m]

;1= 45.00 [grad] D= 0.355) [m]

Con&

 R  D

e =  D

[grad]

 R

;2=   72.35 [grad]

 D

R2=

1.40

D= 0.355) [m]

 K 1 =Cc 1∗

α 1

=

e =  D

α 2

0.00014

90

= 1< 2= 0.12 0.0261 [m]

o Perdidas por salida:

eneramente& 9s =

C1=

0.08

De taas&

C2=

0.1

3.37

2= 0.0804

hcd=

De taas & 0.00014

1= 0.04

90

 K 2 =Cc 2∗

= 5.0)1

hs = 2∗ he

0.0543 [m]

o Perdidas totales:

>t= 9 < 9 >t= 9 < , 9e<9r<9d<9s Ht= 0.382 [m] Δz

0.50

> >t >   0.382 Es optimo ! " " "

o Dimenciones de la camara de recarga:

?eg#n taas en #nion de a#da otiene as dimeniones de a de rearga@ !or o %#e&

h c % d #

e

$

#= $= c= d= e= %= h'=

0.40 0.50 0.20 0.15 0.10 16& 0.25

[m] [m] [m] [m] [m] [m]