pompa.pptx

© Fox, McDonald & Pritchard

Mesin Fluida


Definisi

Rotating equipment atau turbo machinery adalah peralatan yang mengalirkan fluida secara kontinu melalui satu atau lebih barisan rotating blade.

Energy, sebagai kerja, diambil dari atau diberikan kepada fluida berdasar aksi dinamik barisan rotating blade.

Aksi dinamik pada blade menghasilkan atau dihasilkan oleh torsi poros.


Fluida

Klasifikasi

Inkompresibelkompresibel

Energi

Energi Kinetik (V2/2)Energi Potensial (gz)Energi Dalam (u)Energi Kerja (p/)


KlASIFikasi


Prinsip Kerja Mesin Tenaga

Perubahan Momentum

Momen Di Poros

Daya Di Poros


Prinsip Kerja Mesin kerja

Perubahan Momentum

Momen Di Poros

Daya Di Poros


Klasifikasi

Aliran Fluida


Klasifikasi PompaPompa

Kinetik/Dinamik

Perpindahan

Pompa spesial

Sentrifugal

Konstruksi

Aliran Fluida

Tingkat kompresi

Sisi Masuk

Radial

Aksial

CampuranJenis Sudu

Satu TingkatBanyak TingkatSingleDouble

TerbukaSemi terbukaTertutup

JetVenturi

PositifRotari


Klasifikasi pompa


Komponen Pompa


Klasifikasi Kompresor


Komponen kompresor


Klasifikasi turbin

Jenis SuduJenis Fluida

Cairan

Uap

Singgle casing

Tandem casing

Gas


Gas Turbine


Steam Turbine


Klasifikasi turbin Air


Turgo Turbine


Cross-flow Turbine


Bulb Turbine


Tubular Turbine


Kaplan Turbine


Propeller Blade Turbine


Francis Turbine


POMPA


Pump component


Gearhead for engine drive

Holloshaft electric motor

(Discharge Heads)


Putaran Spesifik


Pump HEad

Hsis = HS+ hL


Turbomachinery AnalysisThe Angular Momentum Principle

Apply to Control Volume:


Triangle velocity


Turbomachinery Analysis

Euler Turbomachine Equation

Mechanical Power:

Theoretical Head:



Velocity Diagrams


Turbomachinery AnalysisExample: Idealized Centrifugal Pump

• Negligible torque due to surface forces (viscous and pressure).

• Inlet and exit flow tangent to blades.• Uniform flow at inlet and exit.• Zero inlet tangential velocity



(Continued)

Head Equation:

Shutoff Head:



(Continued)



Machines for Doing Work on a Fluid

Hydraulic Power:

Pump Efficiency:


Turbomachinery AnalysisMachines for Extracting Work (Power)

from a Fluid

Hydraulic Power:

Turbine Efficiency:


Performance Characteristics



Performance CharacteristicsMachines for Extracting Work (Power)

from a Fluid



Dimensional Analysis and Specific Speed

Flow Coefficient:

Head Coefficient:

Power Coefficient:




Torque Coefficient:




Specific Speed:

Specific Speed(Customary Units):

Specific Speed(Customary Units):



Similarity Rules

For Dynamic Similarity:

… and …

… so …


Applications to Fluid Systems




Machines for Doing Work on a Fluid• Pump Wear



Machines for Doing Work on a Fluid• Pumps in Series



Machines for Doing Work on a Fluid• Pumps in Parallel



Machines for Doing Work on a Fluid• Fans, Blowers, and Compressors


Applications to Fluid SystemsMachines for Doing Work on a Fluid

• Fans, Blowers, and Compressors



• Positive-Displacement Pumps



• Propellers

Speed of Advance Coefficient:

Thrust, Torque, Power Coefficients, and Propeller Efficiency


Applications to Fluid SystemsMachines for Extracting Work (Power)

from a Fluid• Hydraulic Turbines• Wind-Power Machines

pompa.pptx

Documents

performance

idealized

fluid systems

specific speed

performance

fluid pumps

fluid fans

turbomachinery