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Notas II Parcial

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Notas de clase y estudio individual basado en el libro recomendado para el segundo examen parcial.

Institution
Course

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Análisis demasa
y energía ensistemas abiertos
Durante flujoestable cantidadtotal demasa dentrodevolumencontrol es constante en tiempo
cantidadtotalde masaentrando a volumencontrol esiguala cantidadquesale

min miout
Finodemasa enovanmétrico



µ www µ y qua qua ni pi u
Entrada salida volumen
e specifico




Trabajodeflujo en volumencontrol trabajo esrequerido paraempujar masa haciaafuera o hacia adentrodel
volumencontrol necesario para mantenerflujo continuo



weno FL PAL Pu Ko

won Pu Ko Kg

Relacióndeflujode trabajo es igual si fluido está siendoempujadodentro o fuera del volumencontrol


Energíatotal de un sistemacompresiblesimple

velocidad

elevación

Fluidonoenmovimiento e n 2 ga eo ra
interna cinética potencia




Fluidoenmovimiento o pu n a ga n L t
ga ka kg
defino
Energía entalpía


Transportede energía por masa
masa
cantidad deenergía Émasa mo m n L ga tú

Ritmodeenergía Émasa mio in n E ga Kw

Procesodeflujoestable un fluidofluyepor un volumencontrol deforma estable propiedades puedencambiar deunpunto
a otrodentrodelvolumencontrol pero encualquier puntose mantiene constante cum rota constante
Trabajo en frontera es o para sistemas deflujoestable
masatotal o energía entrandoal volumencontrol debe serequivalente a lamasatotal o energíasaliendo

Balancedeenergía
Én Én Kw
n l he cnn.net ti paragasesideales re pero despreciable


acaganaáspera oadiabático ke pe
á ú ni na h a g z z
trabajopotencia y a

, Análisisdeenergía


la leyparasistemasabiertos termodinámica



z posición

da
in constante nie mis sua kg s

hs Entalpíadesalida y y y
p presión
T temperatura

Cp c Depende deltipodesistema
ME V y
Q caudal velocidadporáreadeentrada o salida
µ uy y
in ún q
ven t p Ep l
m veo vate

Ejemplo


Mezclador solución

Psn 20 kgm asandomezcla caudal flujoestable
airey metano misma Balancedemasa nie mil
E
S ni rien www.msn
Ae a mi YAgua EveaAeatInventen mismo t Pavada
y n
tiro 10kg s vimeo.ru m s
f 5 kg mi
Ae a5 Metano

usa y 5m s

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Uploaded on
January 8, 2023
Number of pages
13
Written in
2021/2022
Type
Class notes
Professor(s)
Omar zúñiga
Contains
Ii parcial

Subjects

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