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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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3) Heat Exchangers<br />

i. Shell and Tube<br />

Shell and Tube<br />

U-Tube<br />

= Two pass<br />

Fixed Tube Sheet Heat Exchanger<br />

Stationary Tube Sheets<br />

Easy to clean (punch) tubes.<br />

May incur expansion stress<br />

during high and low loads.<br />

U-shaped bundle is only attached on one side:<br />

expands easily with temperature change.<br />

Difficult to clean tubes.<br />

Interior head is only attached to end tube<br />

sheet, not to the shell, this permits free<br />

expansion and contraction of tubes with little<br />

stress. The straight tubes are easy to clean.<br />

Domestic use hot water heaters<br />

P a g e 110

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