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Fans – Lecture 2

Explore the intricate world of axial and radial flow fans, including propeller, tube-axial, and vane-axial designs. This lecture by Dr. C. L. Jones from Biosystems and Agricultural Engineering covers essential fan types such as centrifugal, mixed-flow, and cross-flow fans, providing valuable insights on performance curves and efficiency metrics. Key topics include total pressure, static efficiency, and various conversion formulas. Enhance your understanding of fan applications in engineering with a focus on practical calculations and industry standards.

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Fans – Lecture 2

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  1. Fans – Lecture 2 • Fan testing: Dr. C. L. Jones Biosystems and Ag. Engineering

  2. Axial flow fans propeller fan tube-axial fan vane-axial fan Dr. C. L. Jones Biosystems and Ag. Engineering

  3. Radial flow fans centrifugal Sukup literature Dr. C. L. Jones Biosystems and Ag. Engineering

  4. cross-flow (tangential) fans Dr. C. L. Jones Biosystems and Ag. Engineering

  5. mixed-flow tubular cent. fans Dr. C. L. Jones Biosystems and Ag. Engineering

  6. Fan Curves • AMCA Handout Dr. C. L. Jones Biosystems and Ag. Engineering

  7. Total pressure, total efficiency, static efficiency • Total Pressure: eqn. 5.1, pg 127 • Find v: eqn. 5.2 • Conversions: • 1 “H2O = 249 Pa • 1 ft/min = .00508 m/sec • 1 lb/in^3 = 27679.9 kg/m^3 • 1 ft^3/min = .000471947 m^3/sec • 1 HP = 745.7 Watts • Total efficiency eqn. 5.3 • Static efficiency eqn. 5.4 • Assume 1750 rpm • Outlet of 10” x 12” • Q = 12030 cfm • Static pressure = 2” • 50 hp • Density = 3.9E-5 lb/in^3 Dr. C. L. Jones Biosystems and Ag. Engineering

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