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CANAL DE ADUCCION
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CANAL DE ADUCCION DE UNA CENTRAL HIDROELECTRICA
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DISEÑO DE CANAL TRAPEZOIDAL CON MAXIMA EFICIENCIA HIDRÁULICAPara poder diseñar el canal derivador que va desde la bocatoma en el rio hasta la camara de carga se ha optado
por la implementacion de un canal de seccion trapezoidal con maxima eficiencia hidraulica.Este canal sera
revestido de concreto (concreto frotachado) con n= 0.015. La pendiente del canal es de:
Cota sup 1969.00
Cota inf 1955.00
Long Canal 0.95 m
Para garantizar una estibilidad de latud se considera que
el angulo de este no debe exceder de 60°
Elcaudal obtenido con el metodo de Lutz schools es de
1. DIMENCIONES A ENCONTRAR
b =? Ancho de la solera
y =? Tirante en el canal
DATOS:
2. PARA EL ELEMENTO HIDRAÚLICO
Q 0.55 Caudal que transportará el canal
S 0.0022 Pendiente del canal
n 0.0150 Rugosidad (Canal revestido con concreto frotachado)
3. PARA EL ELEMENTO GEOMÉTRICO
Z 0.577 Talud de los lados de canal
ANGULO 60.00 °C para Gatantizar estabilidad en los laterales del
canal de acuerdo al tipo de suelo
1.0472 RAD
0.5774 Cotangente
4. SOLUCION
Y 0.50 Valor asumido para diseño
m 1.15 Valor de maxima eficiencia hidraulica
b=my 0.58 Ancho o fondo del canal
T 1.15 Espejo de agua
Area Hidraulica 0.43
Radio Hidraulico 0.25
Elemen.Geometrico 0.17
Elemen. Hidr´zulico 0.18
DIFERENCIA 0.00 Debe ser igual a "0" para Diferencia entre
elemento geometrico e hidraulico
Area 0.43
Perimetro mojado 1.73
Radio hidráulico 0.25
, velocidad 1.27
N Froude 0.57
Y/2 0.25
E 0.58
R=Y/2 Para canal trapezoidal y rectangular
SECCIÓN DEL CANAL TRAPEZOIDAL
CONTROL DEL NÚMERO DE FROUDE
Progresiva Q(m3/s) A(m2) PM(m) y(m) S (m/m) V (m/s) F
0+000 0.55 0.43 1.73 0.50 1.27 0.57
0+020 0.55 0.50 66.95 0.55 1.11 0.48
0+040 0.55 0.48 1.67 0.54 1.13 0.49
0+060 0.55 0.52 2.23 0.57 1.06 0.45
0+080 0.55 0.52 1.90 0.57 1.06 0.45
0+095 0.55 0.58 1.82 0.62 0.95 0.39
OK!!! Velocidad Autolimpiante
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