Boiler Water Treatment - Principles and Practice, Volumes by Frayne, Colin

By Frayne, Colin

This accomplished reference analyzes the basics of the mechanical operation of boilers, including the utilized chemistry required to accomplish waterside cleanliness, rate effectiveness and optimum boiler operation. it's the such a lot useful box advisor on hand on steam and boiler water therapy.
entrance subject
• Symbols and Abbreviations
• advent: The functionality of Boiler Water therapy and its advertising and marketing
• Preface
• desk of Contents
•Volume I: Boiler fundamentals and Steam Water Chemistry 1. Steam new release
2. Boiler forms and purposes
three. Boiler Plant Subsystems, Appurtenances, and Auxiliaries
four. Waterside and Steamside difficulties: the fundamentals
five. Waterside and Steamside difficulties: scorching Water Heating and Low-Pressure Steam Boiler Specifics
6. Waterside and Steamside difficulties: Pre-Boiler part Specifics
7. Waterside and Steamside difficulties: Boiler part Specifics
eight. Waterside and Steamside difficulties: Post-Boiler part Specifics
•Volume II: remedies, software layout, and administration nine. Pre-Boiler and Post-Boiler remedy tactics
10. inner remedy courses
eleven. Adjuncts and Conjuctional remedies
12. regulate of Boiler Water Chemistry
thirteen. Operational keep an eye on of Waterside Surfaces
14. regulate of hearth stipulations and Surfaces
Appendix I. necessary information
Appendix II. word list
• Bibliography

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Traps that stick shut lead to waterlogged lines and water hammer. • Traps that are corroded and leak steam and water waste heat ener­ gy. This wastage can add up to a significant extra requirement for primary fuel. • Traps should be fitted to steam heated tracing lines, rather than allowing them to blow to the atmosphere (as is common), to avoid a direct steam loss. 6 Blowdown Efficiency All steam-generating boilers operating at over 15 psig require at least daily blow down (blow off) to deconcentrate total dissolved solids 20 Boiler Water Treatment: Principles and Practice (TDS) in the boiler water, to remove sludges, and for safety reasons.

In dry-back boiler designs the tubes pass through the rear tube sheet before returning to the steam and BW compartment, which provides for a relatively larger horizontal heating surface and thus quicker steaming. Boiler Types and Applications 33 Also, there is an unrestricted access to the rear of the tubes for cleaning. However, valuable heat is lost to the refractory rather than the water. 4 Firebox Boilers Firebox boilers (FB boilers), like SM boilers, have a long history, and many old, riveted, and unlagged shell boilers dating from the 1920s can still be found in large apartment complexes and commercial buildings, where concern over optimum operating efficiency is not critical.

Also space requirements are smaller and capital and maintenance costs often are lower. In addi­ tion, electric boilers typically do not require full-time operators. The efficiency of electric boilers is high, often 95 to 98%, with per­ haps a 5 to 10% efficiency decrease from high fire to low fire (compared with an oil-fired boiler, which may only ever reach 82% efficiency and may have a 10 to 15% spread). There are two principal types of electric boiler, the electrical resist­ ance boiler and the electrode boiler.

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