Lec16 - ME 200: Thermodynamics I Lecture 16: Control volume...

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ME 200: Thermodynamics I Lecture 16: Control volume analysis - mass conservation Sections 4.1-4.3 Problems: SP16; 4.6, 4.11 Professor Hukam Mongia Office Hours: MWF 2:30 to 3:30 pm in ME 83 (Other times email for appointment) Email: hmongia@purdue.edu Phone: 765-494-5640 Course Website: https://engineering.purdue.edu/ME200 Course Secretaries: Diana Akers (ME 84) and Marilyn Morrison (ME 100) See Kul Inn (ME 189) about grading Homework Assignments 9/28/2009 Problem answers: 4.6: 1200 lbm;4.11: (a) 0.989 lb/s, (b) 117.8 ft3/min, (c) 13.41 ft/s Prof. Lucht's lecture notes modified 1
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This Lecture Conservation of Mass Flow Energy 9/28/2009 2 Prof. Lucht's lecture notes modified
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Mass Flow Rate Amount of mass flowing through a cross section per unit time (kg/s) For most cases of practical interest One-dimensional flow i.e. properties vary in the bulk flow direction only Velocity and density almost constant across the cross-section ˆ n n A A m V dA V V n  av m ρV A 9/28/2009 3 Prof. Lucht's lecture notes modified
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Mass Flow Rate Formal Derivation Figures from Cengel and Cimbala, Fluid Mechanics: Fundamentals and Applications 9/28/2009 4 Prof. Lucht's lecture notes modified
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Lec16 - ME 200: Thermodynamics I Lecture 16: Control volume...

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