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Heat Transfer

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Cover Story Part 1: Heat Flux And Film Temperature In Fired, Thermal-Fluid Heaters

| By R.G. Pelini RGP Engineering

In a fired thermal fluid heater, a thermal fluid is heated by the metal surfaces of a fired heater or fluegas heat-recovery exchanger. Generally, the heat input rate is controlled to achieve some desired bulk-fluid temperature exiting the heater. However,…