Optimize Fired Heater Operations To

CHAPTER Utilities and Energy Efficient Design 3

The fuel consumed in a fired heater can be estimated from the fired heater duty divided by the furnace efficiency. The furnace efficiency will typically be about 0.85 if both the radiant and convective sections are used (see Chapter 19) and about 0.6 if the process heating is in the radiant section only. Example 3.1

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