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Comprehesive Boiler Manual Jan 2019

A Preview of B&CT Training LLC - Boiler Systems I & II Comprehensive Training Manual. We can customize training manuals to include your specific equipment. The outline is specifically designed to assist with compliance to V.A. Handbook 1810 requirements. For more information please call 405-401-0156 or see www.b-ct.net

A Preview of B&CT Training LLC - Boiler Systems I & II Comprehensive Training Manual. We can customize training manuals to include your specific equipment. The outline is specifically designed to assist with compliance to V.A. Handbook 1810 requirements. For more information please call 405-401-0156 or see www.b-ct.net

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Flue Gas Recirculation, recycles a portion of used, inert (low O2) combustion gases from the stack to the burner.<br />

Two results: 1) the burning of the flame becomes “stretched out”, lowering peak flame temperature and 2)<br />

lower excess O2, reducing chance of NOx formation.<br />

No FGR, higher peak<br />

temperature flames<br />

Less concentrated, lower<br />

temperature burning points<br />

in FGR, less NO x emissions<br />

A mod motor controls this<br />

damper for incoming flue gas.<br />

(Closes when boiler is off)<br />

EGR valves (Exhaust Gas Recirculation) on<br />

automobile motors operate under the<br />

same principle as FGR<br />

P a g e 197

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