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References: High Temperature, Leak-Tight and RTO Construction

  1. Thermal expansion - Wikipedia - Explains linear expansion and the coefficient of thermal expansion, with tables for common metals. It is the background for this chapter's \( \Delta L = \alpha L \Delta T \) shaft-growth calculation and its fixed and floating bearings.

  2. Thermal oxidizer - Wikipedia - Describes thermal oxidizers, including a section on regenerative thermal oxidizers (RTOs) with ceramic heat-storage beds and flow reversal. It explains the process the chapter's RTO fans serve.

  3. Gasket - Wikipedia - Covers gasket materials and how bolted joints compress a gasket to seal. It supports the chapter's point that gasketing on leak-tight fans needs close bolt spacing to keep the gasket clamped.

  4. Fan Engineering: An Engineer's Handbook on Fans and Their Applications (9th edition) - Robert Jorgensen (editor) - Buffalo Forge Company (later Howden Buffalo) - A long-standing industry handbook on fan design and application. It is useful for the materials and temperature effects behind FanPedia's high temperature packages.

  5. Fan Handbook: Selection, Application, and Design - Frank P. Bleier - McGraw-Hill (1998) - Bleier writes from an application engineer's point of view, organizing fan types, construction and special-duty fans around how they are selected and specified. That is the same quoting perspective this chapter takes.

  6. FanPedia: The Fan & Blower Encyclopedia (PDF) - Twin City Fan - The source for every construction detail here. See Fan Construction pp. 103-121 for spark resistance, high temperature packages, leak-tight and RTO pages, and p. 192 for the shaft cooler.

  7. FanPedia online - Twin City Fan - The web edition of FanPedia, with the same fan construction topics in browsable form. Use it alongside the current catalogs, which take priority when they differ from FanPedia.

  8. High Temperature Fans (FE-3200) - Twin City Fan Fan Engineering Letter - The letter every FanPedia high temperature package page refers to. It reviews material limits, creep, thermal stresses and cyclic operation for fans exposed to elevated temperatures.

  9. Sealing of Fan Housings (FE-700) - Twin City Fan Fan Engineering Letter - The letter FanPedia cites for nominally leak-tight fans. It covers why leakage matters, degrees of housing sealing, shaft seal types, and the role of caulks and gaskets.

  10. Spark Resistant Fan Construction (FE-2200) - Twin City Fan Fan Engineering Letter - Explains AMCA Standard 99-0401's spark-resistant Types A, B and C and their limits. It is a companion to the chapter's Type A and Type B comparison.

  11. TCVS and TCVSSH Vaneaxial Fans Catalog (AX255) - Twin City Fan - States that standard construction is good to 200°F and that fans can be customized to handle up to 500°F. The TCTA (AX200) and TCVA (AX100) catalogs list high temperature construction only to 250°F, and the TCTS product page (tcf.com/products/axial-fans/tcts/) says up to 300°F customized.

  12. Fan Bearing Maintenance and Troubleshooting (FE-1300) - Twin City Fan Engineering Letter - Recommends special high temperature greases when the bearing temperature exceeds 160°F, which is a bearing temperature, not an airstream band.