Information the Might be Useful for the Exam

Slides:



Advertisements
Similar presentations
Fluid Mechanics.
Advertisements

SAMPLE SLIDES OF THE 1-DAY SEMINAR FOR PUMP USERS
CTC 261 Bernoulli’s Equation.
Pumps and Pumping Stations
Our Plan – Weeks 6 and 7 Review energy relationships in single pipes Extend analysis to progressively more complex systems – Pipes in parallel or series.
Operation of Centrifugal pump
Chapter 2 Hydraulics: Major Forms of water transport Gravity Flow Pumping Water Properties incompressible liquid (constant volume) Unit wt. = 62.4 pcf.
1 CTC 450 Review Friction Loss Over a pipe length Darcy-Weisbach (Moody’s diagram) Connections/fittings, etc.
CE 230-Engineering Fluid Mechanics
ES 202 Fluid and Thermal Systems Lecture 12: Pipe Flow Overview (1/9/2003)
Test 1A Same material Voluntary Outside regular class.
The Centrifugal Pump.
CEE 345, Spring 2012 Part 2: Hydraulics and Open Channel Flow Instructor: Mark Benjamin, 335 More Hall;
Lesson 26 CENTRIFUGAL PUMPS
FE Hydraulics/Fluid Mechanics Review
1 CTC 450 Pumps Pumps
MER Design of Thermal Fluid Systems Pumps and Fans Professor Anderson Spring Term
Pumps.
DESIGN AND CONSTRUCTION OF AN INDUCTION FURNACE (COOLING SYSTEM) Presented by MG THANT ZIN WIN Roll No: Ph.D-M-7 Supervisors : Dr Mi Sanda Mon Daw Khin.
Fluid Dynamics. Floating An object floats on a fluid if its density is less than that of the fluid When floating F B = F W ρ f V disp g = ρ o V o g ρ.
1 Pumping Learning Outcomes Upon completion of this training one should be able to: Know what are the key pump components and how they impact pump.
1 CTC 450 Review Energy Equation Energy Equation Pressure head Pressure head Velocity head Velocity head Potential energy Potential energy Pumps, turbines.
Fluid Properties: Liquid or Gas
CE 3372 Water Systems Design
Things to grab for this session (in priority order)  Pencil  Henderson, Perry, and Young text (Principles of Process Engineering)  Calculator  Eraser.
1 CTC 261 ► Energy Equation. 2 Review ► Bernoulli’s Equation  Kinetic Energy-velocity head  Pressure energy-pressure head  Potential Energy ► EGL/HGL.
Things to grab for this session (in priority order)  Pencil  Henderson, Perry, and Young text (Principles of Process Engineering)  Calculator  Eraser.
For calculating energy loss to friction the special case of the flow of water (Newtonian fluid) in pipeline systems. Limited to the flow of water in pipe.
General Energy Equation. Chapter Objectives Identify the conditions under which energy losses occur in fluid flow systems. Identify the means by which.
Hydraulics & Hydrology Review 1 Lecture3 Dr. Jawad Al-rifai.
Urban Storm Drain Design: Multiple Pumps. Multiple Pumps The HDM and FHWA recommend more than one pump Redundancy Flexibility Ability to manage flows.
Background 1. Energy conservation equation If there is no friction.
Outcome 3 Pressure, force and flow of water Unit 203: Scientific principles for domestic, industrial and commercial plumbing.
Water Resources System Modeling
ME444 ENGINEERING PIPING SYSTEM DESIGN CHAPTER 1: INTRODUCTION.
Lecture Objectives: Answer question related to Project 1 Finish with thermal storage systems Learn about plumbing systems.
Things to grab for this session (in priority order)  Pencil  Henderson, Perry, and Young text (Principles of Process Engineering)  Calculator  Eraser.
1 ME444 ENGINEERING PIPING SYSTEM DESIGN CHAPTER 6 : PUMPS.
Water Management Water is an important natural resource that requires proper management. Appropriate flow rate, pressure, and water quality are necessary.
Pipe l (ft)D (in)C HW KK  1/n Note that the calculation.
Basic Hydraulics: Energy and Momentum concepts. Energy of flow Three kinds of energy gradients cause flow Elevation (called potential energy) Pressure.
FLUID FLOW FOR CHEMICAL ENGINEERING Dr Mohd Azmier Ahmad Tel: +60 (4) EKC 212 CHAPTER 8 (Part 5) TRANSPORTATION SYSTEM.
SUGGESTED MINIMUM KNOWLEDGE OF FLUID MECHANICS AND FOR FE EXAM
Major loss in Ducts, Tubes and Pipes
Chapter 10: Flows, Pumps, and Piping Design
General and basic pump knowledge
8.2 OBJECTIVES  Describe the appearance of laminar flow and turbulent flow  State the relationship used to compute the Reynolds number  Identify the.
Power – Energy Relationships
System One Pumps S1-200 Centrifugal Hydraulics
CE 3372 Water Systems Design
CE 3372 Water Systems Design
Components Pumps.
EXERCISES Two water reservoirs are connected by a pipe 610m of 0.3m diameter, f’=0.038 and the flow produced by the difference in water surface elevations.
and the like in the pipe or duct system.
Basic Hydrology & Hydraulics: DES 601
Environmental Engineering CIV2257
CTC 450 Review Friction Loss Over a pipe length
Chapter 4. Analysis of Flows in Pipes
Chapter 16 A: PUMPS AND SYSTEM EFFECTS
ME444 ENGINEERING PIPING SYSTEM DESIGN
Find: Q gal min 1,600 1,800 2,000 2,200 Δh pipe entrance fresh water h
CTC 450 Review Energy Equation Pressure head Velocity head
Chapter 5. Pipe System Learning Outcomes:
Simplifying Pipe Networks: Equivalent Pipes
50 m EML3015C Thermal-Fluid I Fall 2000 Homework 4
Pumps and pumping station
8. FLUID FLOW: mechanical energy equation
29. Non-Newtonian Flow 2 CH EN 374: Fluid Mechanics.
9. FLUID FLOW: Working Problems
Presentation transcript:

Information the Might be Useful for the Exam

Unit conversions and physical properties of water 1 ft3 = 7.48 gal; 1 cfs = 448.8 gpm; 1 hp = 550 ft-lb/s 20oC: r = 998.2 kg/m3 g = 9.79 kN/m3 n = 1.00x10-6 m2/s m = 1.00x10-3 N-s/m2 pvap = 2.34 kPa = 0.00234 atm 60oF: r = 1.94 slug/ft3 g = 62.4 lb/ft3 n = 1.21x10-5 ft2/s m = 2.34x10-5 lb-s/ft2 pvap = 0.256 lb/ft2

Equations characterizing friction and headloss in turbulent pipe flow: Colebrook Eqn. Haaland Eqn.

Hazen-Williams Eqn for SI units (for BG units, replace 0. 849 by 1 Hazen-Williams Eqn for SI units (for BG units, replace 0.849 by 1.318, 10.7 by 4.73, and 0.278 by 0.432): Headloss equations for equivalent pipes: Iterative corrections for analysis of pipe networks:

Net Positive Suction Head Available (NPSHA): The absolute dynamic head in the pump inlet in excess of the vapor pressure Some useful dimensionless groups for pump similitude: To a good approximation, for geometrically similar pumps, all are functions of only .

Some Basic Information Expected to be Known For a given pipe:

Explain some aspect of these diagrams Explain some aspect of these diagrams. For example, why do the curves change as they do?; what would happen if a new pump or pipe were added to the system, or if an existing pump were replaced with a similar one with a larger diameter?; etc.

Typical Exam Questions Characterize a pipe equivalent to A, B, C, and D. If an equivalent pipe were identified, and a second pipe parallel to D were then installed, would the length of the equivalent pipe increase, decrease, or not change?

Given initial guesses of Q and the values of K and n for hL=KQn in each pipe, what would be the correction to the flow in pipe BE?

Sketch reasonable pump curves and system curves for the above network, for conditions where the upper reservoir is at its (1) highest and (2) lowest levels.

CP CH CQ h If the conditions in a system with this fixed-speed pump changed so that CQ increased from 0.05 to 0.06, how much would the fluid power change, if at all? h