SEDIMENTATION According to Brown (1950)‚ sedimentation is the separation of a suspension into a supernatant clear fluid and a rather dense slurry containing a higher concentration of solid. According to Perry ()‚ sedimentation is the partial separation or concentration of suspended solid particles from a liquid by gravity settling. This field may be divided into the functional operations of thickening‚ whose purpose is to increase the concentration of suspended solids in a feed stream; and clarification
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Effect of Tightening Limits and Reducing Tank Size 11 References 13 Appendix 13 Derivation of Transfer Functions 13 Sample Calculation 15 List of Figures Figure 1: Relative density of surge tank feed against time 1 Figure 2: Volumetric flow rate of surge tank feed against time 1 Figure 3: Xcos surge tank simulation 3 Figure 4: Sinusoidal response of the height transfer function 4 Figure 5: Sinusoidal response of the density transfer function 5 Figure 6: Response of density
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Introduction The projects objective is to design a bridge spanning across the Murrumbidgee River located near Gundagai. Through the use of hydrological data and hydraulic analysis we will determine the required height of the bridge corresponding to a specific frequency of flood. To design a bridge capable of spanning the Murrumbidgee River and flood plain will require hydrological analysis which takes into account all upstream data that is required for the catchment area of the river that will
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fluid power symbols Hydraulic Pumps Pump characteristic Operating pressure Speeds Displacement volume (V) – volume of liquid per revolution Volumetric flow rate: Q = n × V where n : number of rotation (rpm) V : displacement volume (per rev) Pump Efficiency (Volumetric) To determine performance of pump Divided into two: Volumetric efficiency (ηvol) : Indicates amount of leakage that takes place in the pump. Effected by pressure. ηvol = QA/QT = (actual flow rate)/(theoretical flow
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deflectors. There are four deflectors used in this experiment. The four deflectors are plate‚ hemisphere‚ slope and cone. The loading weights to be used are 0.8 N‚ 1.0 N‚ 1.5 N and 2.0 N. In this experiment‚ the time taken for the water level in the volumetric tank to raise from 10 to 20 L is determined by using a stop watch. The flow rate‚ calculated force and the error percentage will be calculated in this experiment. The theoretical and measured force will be compared in this experiment.
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Figure 21: Pressure Differential Gauge Δp. 2 Figure 22: Weighing Tank with Dump Valve open. 3 Figure 23: Pressure Differential Gauge between Valve Set-up 3 Table 51: Constants and given values. 5 Table 52: Measured Data. 5 Table 53: Volumetric Flow‚ Velocity‚ Reynolds #‚ Head
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conserved quantity (Φ) in the chemical engineering system is given below Rate of input of Φ - Rate of output of Φ + Rate of generation of Φ = Rate of accumulation of Φ Rate of input of Φ or rate of output of Φ = mass flow rate or mole flow rate or volumetric flow rate Rate of generation of Φ = generation rate or depletion rate per unit volume (r) x volume of the system Depletion rate = - generation rate Where r is rate of reaction Rate of accumulation of Φ = the time rate of change of that particular
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Chapter 4 Fundamentals of Material Balances Material Balance-Part 1 Process Classification 3 type of chemical processes: 1. Batch process – Feed is charge to the process and product is removed when the process is completed – No mass is fed or removed from the process during the operation – Used for small scale production – Operate in unsteady state March 31‚ 2009 ChE 201/shoukat@buet.ac.bd 2 Process Classification 2. Continuous process – Input and output is continuously
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ENGINEERING DIMENSIONS AND UNITS Fundamental dimension A unique quantity that describes a basic characteristic‚ such as force (F) mass (M) length (L) time (t) Systems of units SI system Systeme International d’ Unites Based on meter for length‚ second for time‚ kilogram for mass and Kelvin for temperature. Force is expressed in Newtons. English (now American) system Feet‚ pounds (mass)‚ seconds‚ pounds (force) cgs system Density The density of a substance is defined
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Saimaa University of Applied Sciences Technology‚ Imatra Paper Technology Loan Dinh Development of the Pressure Screen Foil Bachelor’s Thesis 2012 Abstract Loan Dinh Development of the Pressure Screen foil‚ 60 pages‚ 12 appendices Saimaa University of Applied Sciences Technology‚ Imatra Paper Technology Bachelor’s Thesis 2012 Instructors: Mr Ari Pelkiö‚ Chief Technology Manager‚ Andritz Mr Pekka Karppinen‚ Product Manager‚ Andritz Mr Jarkko Männynsalo‚ MSc‚ Senior Lecturer‚ Saimaa UAS
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