L03. Governing LAWS

L03. Governing LAWS - EGR10. Introduction to Engineering...

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Unformatted text preview: EGR10. Introduction to Engineering Problems Engineers Solved Fall 2008 Lecture 03: Governing LAWS Guiding Lectures for Download L01: Course Outline, Design Methodology Approaches, including the Template Example How did Engineers Solve the Pump Fluids Problem? L02: Bow Tie hierarchy and Define the Function of the Hierarchical Scales L03: Laws governing the Hierarchical Scales L04: Component Design and Analyses L05: Materials Choice and Analysis of Materials Performance L06: The Specification Sheet L07: Production L08: Prototypes L09: Performance in Service L10. Reverse Engineering Engineered Devices: What Did We Learn? Downloadable from: Blackboard. (2008 Fall) INTRO TO ENGINEERING (01L) How will we ever carry it down this hill? Lecture 04. Governing LAWS So, you want to be a Lawyer do you? Well, you came to the right place,. Its called ENGINEERING! http://www.alcyone.com/max/physics/laws/ Tereshkova 2.95 days Engineer. First woman in space http://www.astronautix.com/articles/womspace.htm Charlotte Lawyer http://www.humorpower.com/blog/2007/10/cartoon-caption-contest-results-2/ Slide 1. How Did Engineers Solve the move fluid from a lower potential energy to a higher potential energy Problem? Macro Device Sub Component Level 1 Neal Simmons O Seat Ring David Needham Ball Check Valve Abrasion of O Ring Leakage of Fluid Macro Device Sub Component Level 1 Sub Component Level 2 Sub Component Level 2 Normal System System Failure Diaphragm pump Reduction/Los s of Pumping Slide 2. The Macro Device The Macro Device Diaphragm pump Slide 3. The Functions of the Diaphragm Pump The overall function of the diaphragm pump is to move fluid from a lower potential energy to a higher potential energy Sub functions of this device are to Propel a fluid (sludge) Increase the relative pressure of a fluid Decrease the relative pressure of the fluid Quietly propel a fluid Efficiently propel a fluid Propel a fluid with minimal shear Propel a fluid containing large particles The Macro Device Diaphragm pump 400L/min 1 Bar to 8.5 Bar 1 Bar to 0.5 Bar less than 90 Db not less than 20% 3 < mm Note that 1 bar = 1 x 10 5 Pa or N/m 2 A diaphragm pump is a positive displacement pump that uses a combination of the reciprocating action of a rubber , thermoplastic or teflon diaphragm and suitable non-return check valves to pump a fluid (like sludge) Slide 12. The Ball Check Valve Sub Component Level 1 http://en.wikipedia.org/wiki/Check_valve Slide 13. The Function(s) of the Ball Check Valve With a ball check valve The Function(s) of the ball check valve are To prevent back flow up to a pressure of 8.6 Barr To seat a Ball in the valve .....
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This note was uploaded on 02/14/2011 for the course EGR 10 taught by Professor Staff during the Fall '08 term at Duke.

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L03. Governing LAWS - EGR10. Introduction to Engineering...

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