diseno de un canal cerrado[1]

21
UNIVERSIDAD NACIONAL DE CAJAMARCA FACULTAD DE INGENIERÍA Escuela Académico Profesional de Ingeniería Civil DISEÑO DE TUBERÍAS Método Teoría lineal 1. Datos iniciales: 2. Datos de entrada DATOS DE ENTRADA Tram o Longit ud Diámetr o Cauda l (1- 2) 300 0.2 0.1 (1- 6) 400 0.15 0.1 (2- 3) 400 0.1 0.1 (3- 4) 200 0.25 0.1 (4- 5) 300 0.1 0.1 (2- 5) 300 0.15 0.1 (5- 6) 500 0.2 0.1 METODOS NUMERICOS ܳ ͳ ʹ ͵ Ͷ ͷ ܮ͵Ͳ ݉݉݉݉݉݉݉݉݉݉݉݉݉ ݉ ൌͲǤʹͲ ܮͶͲ ݉݉݉݉݉݉݉݉݉݉݉݉݉ ݉ ൌͲǤͳ ݉݉݉݉݉݉݉݉݉݉݉݉݉݉ ܮͷͲ ݉݉݉݉݉݉݉݉݉݉݉݉݉ ݉ ൌͲǤʹ0 ܮ͵Ͳ ݉݉݉݉݉݉݉݉݉݉݉݉݉ ݉ ൌͲǤͳ0 ܮ͵Ͳ ݉݉݉݉݉݉݉݉݉݉݉݉݉ ݉ ൌͲǤͳͷ ܮʹͲ ݉݉݉݉݉݉݉݉݉݉݉݉݉ ݉ ൌͲǤʹ5 ܮͶͲ ݉݉݉݉݉݉݉݉݉݉݉݉݉ ݉ ൌͲǤ15

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DISEO DE TUBERASMtodo Teora lineal1. Datos iniciales:

2. Datos de entrada DATOS DE ENTRADA

TramoLongitudDimetroCaudal

(1-2)3000.20.1

(1-6)4000.150.1

(2-3)4000.10.1

(3-4)2000.250.1

(4-5)3000.10.1

(2-5)3000.150.1

(5-6)5000.20.1

3. Iteraciones.Calculo del coeficiente de friccin:

TRAMO 2-5

Longitud=300Caudal0.135425712

Viscosidad=0.00000115Dimetro0.2

Rugosidad Ks PVC0.000100Velocidad4.310724231

fKs/dRef

0.0010.000500749,6917.2359317.235931230.019099022

0.01910.000500749,6917.5952347.595233940.017334754

0.017330.000500749,6917.5887027.58870190.017364609

0.017360.000500749,6917.588827.588820210.017364068

0.017360.000500749,6917.5888187.588818070.017364078

Tramo 1-6

Longitud=400Caudal0.06457429

Viscosida=1.15E-06Dimetro0.15

Rugosidad Ks PVC0.000100Velocidad3.65414863

fKs/dReffKs/d

0.0010.000667476,6286.9200656.9200650.02088236

0.020882360.000667476,6287.3285937.3285930.0186191

0.01861910.000667476,6287.320017.320010.0186628

0.01866280.000667476,6287.3201897.3201890.01866188

0.018661880.000667476,6287.3201857.3201850.0186619

Tramo 2-3

Longitud=400Caudal0.03450257

Viscosida=0.00000115Dimetro0.15

Rugosidad Ks PVC0.000100Velocidad1.95244166

fKs/dReffKs/d

0.0010.000667254,6666.616325166.616325160.02284369

0.0228440.000667254,6667.220283057.220283050.0191819

0.0191820.000667254,6667.199464547.199464540.01929299

0.0192930.000667254,6667.200173917.200173910.01928919

0.0192890.000667254,6667.200149737.200149730.01928932

Tramo 3-4

Longitud=200Caudal-0.00534118

Viscosidad=0.00000115Dimetro0.25

Rugosidad Ks PVC0.000100Velocidad0.108809313

fKs/dReffKs/d

0.0010.00040023,6544.9209274.920926540.041295834

0.04130.00040023,6546.4009356.400934810.024406932

0.024410.00040023,6546.2076916.207691210.025950145

0.025950.00040023,6546.2306136.230612990.02575956

0.025760.00040023,6546.2278626.227862270.02578232

Tramo 4-5

Longitud=300Caudal0.03600524

Viscosida=1.15E-06Dimetro0.1

Rugosidad Ks PVC0.000100Velocidad4.58431878

fKs/dReffKs/d

0.0010.001000398,6366.6569476.6569470.02256575

0.022565750.001000398,6367.0111757.0111750.02034316

0.020343160.001000398,6367.0049917.0049910.02037909

0.020379090.001000398,6367.0050997.0050990.02037847

0.020378470.001000398,6367.0050977.0050970.02037848

Tramo 2-5

Longitud=300Caudal0.04154814

Viscosida=0.00000115Dimetro0.15

Rugosidad Ks PVC0.000100Velocidad2.35113825

fKs/dReffKs/d

0.0010.000667306,6706.715065536.715065530.02217683

0.0221770.000667306,6707.257343667.257343660.01898649

0.0189860.000667306,6707.241101517.241101510.01907176

0.0190720.000667306,6707.24158367.24158360.01906922

0.0190690.000667306,6707.241569297.241569290.01906929

Tramo 5-6

Longitud=500Caudal0.02473054

Viscosida=0.00000115Dimetro0.2

Rugosidad Ks PVC0.000100Velocidad0.78719562

fKs/dReffKs/d

0.0010.000500136,9046.291498046.291498040.0252634

0.02526340.000500136,9047.202440357.202440350.01927705

0.019277050.000500136,9047.146375257.146375250.01958071

0.019580710.000500136,9047.149723297.149723290.01956237

0.019562370.000500136,9047.149522997.149522990.01956347

TramoLongitudDimetCaudalVelocidadfhfiKmiHFI+km

1-23000.20.13.1830914180.0175779413.616280136.1628

1-64000.150.15.6588291880.0183835980.011640800.1164

2-34000.10.112.732365670.01838359607.5884106158.51

3-42000.250.12.0371785080.017133522.899318028.99318

4-53000.10.112.732365670.01991439493.636704936.367

2-53000.150.15.6588291880.0183835960.008730600.0873

5-65000.20.13.1830914180.0175779422.693790226.9379

Elaboramos la matriz-1.00-1.000.000.000.000.000.00Q1-2-0.2

1.000.00-1.000.000.00-1.000.00Q1-60.06

0.000.001.00-1.000.000.000.00Q2-30.04

0.000.000.001.001.000.000.00Q340.03

0.000.000.000.00-1.001.001.00Q540.03

136.16-800.120.000.000.00600.09-226.94Q250.00

006158.5128.99-4936.367-600.08730Q650.00

-0.461803890.4596069230.277670.276813710.1310.000577172.95E-05Q1-20.143278

-0.53819611-0.45960692-0.27767-0.2768137-0.131-0.0005772-3E-05Q1-60.056722

-0.02363729-0.027659860.4377350.435218170.0072.9542E-058.68E-05Q2-30.033835

-0.02363729-0.02765986-0.562270.435218170.0072.9542E-058.68E-05Q34-0.00617

0.023637290.0276598590.5622650.56478183-0.00670427-2.954E-05-8.7E-05Q540.036165

-0.4381666-0.51273322-0.16006-0.15840450.1242777020.00054763-5.7E-05Q250.049443

0.461803890.5403930770.722330.723186290.869018025-0.0005772-3E-05Q650.016722

Siendo nuestros nuevos caudales para la prxima iteracin:Nuevos

Q1-20.12163894

Q1-60.07836106

Q2-30.06691747

Q340.04691747

Q540.06808253

Q250.07472147

Q650.05836106

Este proceso lo repetiremos durante 9 iteraciones obteniendo finalmente los siguientes resultados:Q1-20.13546767

Q1-60.06453233

Q2-30.03437682

Q34-0.00554506

Q540.03587709

Q250.04140335

Q650.02461046

METODO DE HARDY CROSSCalculo del coeficiente de friccin:

Primera iteracinTubera (1-2)

Longitud=300Caudal0.12

Viscosidad=1.15E-06Dimetro0.2

Rugosidad Ks PVC0.000100Velocidad3.819709702

fKs/dReffKs/d

0.0010.000500664,2977.188227.1882170.019353419

0.019350.000500664,2977.579397.5793880.017407312

0.017410.000500664,2977.571517.5715140.017443538

0.017440.000500664,2977.571677.5716720.017442811

0.017440.000500664,2977.571677.5716680.017442825

Tubera (2-5)

Longitud=300Caudal0.01

Viscosida=1.15E-06Dimetro0.15

Rugosidad Ks PVC0.000100Velocidad0.56588

fKs/dReffKs/d

0.0010.00066773,8115.80235.8023390.0297

0.0297030.00066773,8116.84626.8461810.02134

0.0213360.00066773,8116.76816.768120.02183

0.0218310.00066773,8116.77376.7737210.02179

0.0217940.00066773,8116.77336.7733180.0218

Tubera (5-6)

Longitud=500Caudal-0.04

Viscosida=1.15E-06Dimetro0.2

Rugosidad Ks PVC0.000100Velocidad1.2732366

fKs/dReffKs/d

0.0010.000500221,4326.613276.61327020.0228648

0.0228650.000500221,4327.3551547.35515430.0184849

0.0184850.000500221,4327.3210667.32106570.0186574

0.0186570.000500221,4327.3226037.3226030.0186496

0.018650.000500221,4327.3225347.32253360.0186499

Tubera (1-6)

Longitud=400Caudal-0.08

Viscosida=1.15E-06Dimetro0.15

Rugosidad Ks PVC0.000100Velocidad4.527063

fKs/dReffKs/d

0.0010.000667590,4877.00457.00450.020382

0.02038210.000667590,4877.35587.35580.018482

0.01848190.000667590,4877.34967.34960.018513

0.01851280.000667590,4877.34977.34970.018512

0.01851230.000667590,4877.34977.34970.018512

Tubera (2-3)

Longitud=400Caudal0.05

Viscosida=1.15E-06Dimetro0.1

Rugosidad Ks PVC0.000100Velocidad6.366182837

fKs/dReffKs/d

0.0010.001000553,5816.766736.7667310.021839476

0.021840.001000553,5817.043017.0430070.020159684

0.020160.001000553,5817.03947.0393990.020180354

0.020180.001000553,5817.039457.0394460.020180085

0.020180.001000553,5817.039457.0394460.020180088

Tubera (3-4)

Longitud=200Caudal0.01

Viscosida=1.15E-06Dimetro0.25

Rugosidad Ks PVC0.000100Velocidad0.20372

fKs/dReDenomindenominaG(f)

0.0010.00040044,2865.44235.4423220.03376

0.0337620.00040044,2866.76066.7606460.02188

0.0218790.00040044,2866.61736.6173460.02284

0.0228370.00040044,2866.63186.6318260.02274

0.0227370.00040044,2866.63046.630352Correcin

Tubera (4-5)

Longitud=300Caudal-0.02

Viscosida=1.15E-06Dimetro0.1

Rugosidad Ks PVC0.000100Velocidad2.5464731

fKs/dReDenomindenominaG(f)

0.0010.001000221,4326.4030816.40308070.0243906

0.0243910.001000221,4326.9297896.92978910.0208238

0.0208240.001000221,4326.9147946.91479370.0209142

0.0209140.001000221,4326.9152176.91521710.0209117

0.0209120.001000221,4326.9152056.91520510.0209117

UNIVERSIDAD NACIONAL DE CAJAMARCA FACULTAD DE INGENIERAEscuela Acadmico Profesional de Ingeniera Civil

METODOS NUMERICOS

CIRCUITOTUBERALONGITDIAMETROCAUDALVELOCIDADfhfiKmiHFI+kmCorrecinNuevo

supuestoCaudal

I(1-2)3000.20.1203.819710.0174419.4567280162.13940.018090.138

I(2-5)3000.150.0100.5658830.02180.7115104071.151040.018090.0162930.044

I(5-6)5000.2-0.0401.2732370.01865-3.852445096.311130.01809-0.022

I(6-1)4000.15-0.0804.5270630.01851-51.566020644.57520.01809-0.062

sumas-35.25022974.1768

Correcin Q=

0.0180923

CIRCUITOTUBERALONGITDIAMETROCAUDALVELOCIDADfhfiKmiHFI+kmCorrecinNuevo

supuestoCaudal

II(2-3)4000.10.0506.3661830.02016166.57236103352.104-0.016290.034

II(3-4)2000.250.0100.2037180.021880.037023103.70231-0.01629-0.006

II(4-5)3000.1-0.0202.5464730.02082-20.6471601032.358-0.01629-0.036

II(2-5)3000.15-0.0100.5658830.02134-0.696446069.6446-0.01629-0.01809-0.044

sumas145.265774457.809

Correcin Q=

-0.016293

Podemos apreciar el valor de los nuevos caudales, que para 9 iteraciones es el siguiente:

CIRCUITOTUBERALONGITDIAMETROCAUDALVELOCIDADfhfiKmiHFI+kmCorrecinNuevo

Caudal

I(1-2)3000.20.1354.3103760.0188326.7460330197.5119-8.7E-090.13541

I(2-5)3000.150.0422.3566450.0205811.6520760279.7922-8.7E-092.28E-090.04165

I(5-6)5000.2-0.0250.782570.02064-1.610823065.51998-8.7E-09-0.02459

I(6-1)4000.15-0.0653.6547670.02026-36.787270569.5927-8.7E-09-0.06459

sumas1.943E-051112.417

Correcin Q=

-8.73E-09

CIRCUITOTUBERALONGITDIAMETROCAUDALVELOCIDADfhfiKmiHFI+kmCorrecinNuevo

Caudal

II(2-3)4000.10.0344.2996340.022384.048526102498.324-2.3E-090.03377

II(3-4)2000.25-0.0060.126930.02430.01596330-2.56204-2.3E-09-0.00623

II(4-5)3000.1-0.0364.6130220.02226-72.4426701999.485-2.3E-09-0.03623

II(2-5)3000.15-0.041652.3566450.02053-11.621790279.0651-2.3E-098.73E-09-0.04165

sumas2.173E-054774.312

Correcin Q=

-2.28E-09

Que como podemos notar en ambos mtodos los resultados coinciden por lo que podemos decir que no hubo errores al realizar el diseo de tuberas.MODELADOS MATEMATICOS.

1) Analizaremos las propiedades fisicas del agua tales como la viscosidad y la densidadPARA LA VISCOSIDAD (MODELO LINEAL)

Modelo polinmico

Modelo exponencial

Siendo el mejor modelo el polinomico puesto que (r cuadrado=0.9997) ms prximo a uno