PIPING
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Transcript of PIPING
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PIPING
PROFESOR:SANTIAGO GEYWITZ B.INGENIERO INDUSTRIAL
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MATERIA
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PROPIEDADESV/S
TAMAÑO DE MOLECULA
PROPIEDAD
N° de ATOMOS DE “C” en la MOLECULA
3 26 500 350.000
POLIMEROS
GAS
SOLIDOS
LIQUIDOS
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CONCEPTOS FISICOS
• T° Kelvin/Celcius/Fahrenheit
• Peso Masa x Gravedad
• Masa Volumen x Densidad
• Densidad Masa / Volumen
• Vespecifico 1 / Peso especifico
• Pespecifico Peso sustancia/Volumen
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PRESION• ATMOSFERICA
• MANOMETRICA
• TORRICELI
• PASCAL
• BAROMETRO Hg
• MANOMETRO BOURDON
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Pa= Nm2
bar atm kp/cm2 m c a (H2O)
cm col Hg
p.s.i. pulg.
col H2O pulg. col
Hg Pa=N
m2 1 10-5 9,87*10-4 1,02*10-5 0,000102 7,52*10-4 1,45*10-4 4*10-3 2,95*10-4
bar 105 1 0,987 1,02 10,2 75,2 14,5 400 29,67
atm 1,013*105 1,013 1 1,033 10,33 76 14,68 405,2 30,06
kp/cm2 98067 0,981 0,968 1 10 73,56 14,22 392,4 28,96
m c a (H2O)
9807 0,098 0,968 0,1 1 7,355 1,42 0,39 2,896
cm col Hg
1330 1,33*10-2 1,31*10-2 1,36*10-2 0,13 6 1 0,19 5,32 0,39
p.s.i. 6895 0,069 0,0681 0,07 0,703 5,19 1 27,6 2,04
pulg. col
H2O 250 2,5*10-3 2,46*10-3 2,55*10-3 0,0254 0,19 0,036 1 0,074
pulg. col Hg
3370 3,37*10-2 3,32*10-2 3,43*10-2 0,343 2,54 0,49 13,6 1
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FLUIDOS
• VELOCIDAD y CAUDAL
• CAUDAL y PERDIDAS
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TIPOS DE FLUJO• LAMINAR
• CRITICO
• TURBULENTO
• REYNOLDS
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VISCOSIDAD
• DINAMICA
• CINEMATICA
• VISCOSIMETRO
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VISCOSIDADESFLUIDO (Kg/m x s) ρ (Kg/m3) ν m2/sHIDROGENO 8.9 x 10-6 0.084 1.06 x 10-4
AIRE 1.8 x 10-5 1.2 1.51 x 10—5
GASOLINA 2.9 x 10-4 680 4.27 x 10-7
AGUA 1.0 x 10-3 999 1.01 x 10-6
ETANOL 1.2 x 10-3 789 1.51 x 10-6
MERCURIO 1.5 x 10-3 13540 1.16 x 10-7
ACEITE SAE30 0.26 933 2.79 x 10-4
PETROLEO 1.7 x 10-1 876 1.94 x 10-4
GLICERINA 1.5 1263 1.19 x 10-3
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VELOCIDAD MEDIA
• V = Q/A = W/A x δ = W x Ve / A
• V = VELOCIDAD m/sQ = CAUDAL m3/s
• A= AREA m2
• W= CAUDAL Kg/s
• Ve= VOL. ESPF. m3/Kg
• δ = DENSIDAD Kg/m3
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CAUDAL• RELACION ENTRE LA VELOCIDAD
DEL FLUIDO Y EL DIAMETRO DE LA TUBERIA
• Q = V x A
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ECUACION DE CONTINUIDAD
δ 1 x A1 x V1 = δ 2 x A2 x V2 = δ 3 x A3 x V3
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ECUACION DE BERNOULLI
P1/γ + z1 + V12/2g = P2/γ + z2 + V2
2/2g
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DIMENSIONAMIENTO DE TUBERIAS
C A L C U L O D E P E R D ID A D E P R E S IO N
P L A N O M O N TA JE
C A L C U L O D E E S P E S O R D E P A R E D
P R E S IO N E S N O M IN A L E S
S E L E C C IO N D E L M A TE R IA L
D IA M E TR O D E L A TU B E R IA
D A TO S P A R A D IM E N S IO N A M IE N TO
E S Q U E M A D E L C IR C U ITO
MAYORDIAMETRODEBIDO APERDIDAS
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CALCULO DEL ESPESOR
e = P x d / 2S
S = P x D / 2e
FORMULA DE BARLOW
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ECUACION DE DARCY-WEISBACH
hƒ = ƒ x L xV2
D x 2g
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OSBORNE REYNOLDS• NUMERO DE REYNOLDS:
• Re “o” Nr = D x V / υ = D x V x δ / μ
• υ = VISCOSIDAD CINEMATICA• μ = VISCOSIDAD DINAMICA
• μ / g = υ
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FACTOR DE FRICCION
• ƒ = 6 4 / Nr
• ƒ = 0,316 / 4 Re
ECUACION DE BLASSIUS:
ECUACION DE HAGEN-POISUILLE:
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ECUACION DE COLEBROOK y WHITE
1 = -2 log ( ε + 2,51 )f 3,7d Re f
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PERDIDA DE CARGAPOR ACCESORIOS
hA = K V2
2g
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DESIGNACION DE TUBERIAS
• SCHEDULE :
• PN :
• SDR :
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CODIFICACION DE TUBERIAS
AREA N° LINEA
TIPO DE FLUIDO MATERIAL TUBERIA
DIAMETRO NOMINAL
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NORMAS Y STANDARS
• DIN:
• ASTM:
• BSP:
• API:
• ANSI:
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TUBERIAS
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TUBERIAS
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SOPORTACIONES
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SOPORTACIONES
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ACCESORIOS
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INSTRUMENTACION
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VALVULAS
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VALVULAS DE
REGULACION
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VALVULAS DE
CORTE
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VALVULAS DE
SEGURIDAD
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ACCIONAMIENTO DE VALVULAS
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METODOS DE UNION
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FLANGES
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ISOMETRICOS DE TUBERIAS
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P & I D