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References: Air, Pressure and the Fan

  1. Fan (machine) - Wikipedia - Overview of fans as machines that move air with a rotating impeller, including the main fan types and their uses. Gives context for the chapter's definition of a fan and what it delivers.

  2. Inch of water - Wikipedia - Defines the inch of water column as a pressure unit and gives its conversions to pascals and psi. Supports the chapter's section on inches of water gauge and the manometer.

  3. Density of air - Wikipedia - Explains how air density depends on temperature, pressure and altitude, with tables and the ideal gas relation. Background for the chapter's density ratio, temperature and altitude corrections.

  4. Fan Engineering: An Engineer's Handbook on Fans and Their Applications (9th Edition) - Robert Jorgensen (editor) - Howden Buffalo - The long-running Buffalo Forge handbook, widely used for its practical tables and worked treatment of air properties, density correction and fan power. A deeper companion to this chapter's duty-statement quantities.

  5. Fundamentals of Fluid Mechanics - Bruce R. Munson, Donald F. Young and Theodore H. Okiishi - Wiley - Widely praised for its step-by-step manometry examples, which teach reading U-tube manometers by walking from one fluid level to the next. Reinforces the chapter's static pressure and manometer readings.

  6. FanPedia: The Fan & Blower Encyclopedia (PDF) - Twin City Fan & Blower - The source for this chapter's arrangement descriptions, motor speed and power equivalents, motor load guidance and temperature limits, cited by page number throughout the chapter.

  7. FanPedia online - Twin City Fan & Blower - Online galleries of fan basics, components, construction, accessories and technical descriptions, with a link to the PDF booklet. Useful for seeing the fan types and parts this chapter introduces.

  8. Product Catalogs - Twin City Fan & Blower - Downloadable current catalogs organized by fan type. These are the standard-air performance tables in which the chapter's CFM, static pressure, RPM and brake horsepower appear together.

  9. Air - Density and Specific Volume vs. Altitude - Engineering ToolBox - Tables and charts of air density against elevation. A quick check on the chapter's altitude pressure ratios, such as 0.832 at 5,000 ft.

  10. U-Tube Differential Pressure Manometers - Engineering ToolBox - Explains how a U-tube manometer turns a liquid level difference into a pressure reading, with a calculator. Complements the chapter's description of reading static pressure in inches of water gauge.