| 11. | Sodium hydroxide was also added to'scour'the inside of the boiler tubes and remove any silica particles.
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| 12. | The products, flue gas and un-combusted fuel, then leave the burner and pass over the boiler tubes.
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| 13. | The boiler tube used in this case had already been introduced in 1816 at the Vienna Polytechnic.
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| 14. | From here the hot gases travelled up through the boiler tubes which pass through the water jacket.
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| 15. | Both of the locomotives were damaged, and the crew of one were scalded when the boiler tubes burst.
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| 16. | They were fitted with the Parry soot-blower, which enabled the boiler tubes to be cleaned during running conditions.
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| 17. | This prevents the ash from building up and sintering onto the boiler tubes thus significantly reducing thermal efficiency.
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| 18. | A boiler tube failure on 4 September, however, forced the warship to proceed to Yokosuka for temporary repairs.
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| 19. | The thermal radiation of the fireball heats the water that circulates through the boiler tubes near the boiler perimeter.
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| 20. | One day after a brief fuel stop at Midway Island, however, the warship suffered yet another boiler tube failure.
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