ISBN-13/EAN: 9780820601731
ISBN: 082060173X
Author: Colin Frayne
Chemical Publishing
Book - Paperback
Pub Date: July, 2013
64 pages
Table of Contents:
About the Author
Saturated steam temperatures at various boiler pressures
Boiler Energy and Power Units
Typical gross heating values of common fuels (based on approximately 80% fuel to steam efficiency)
Typical energy consumption and output ratings for a fire tube boiler
Steam tables suitable for pressure deaerators
Calculating Blowdown
Coefficients of thermal conductivity for some heat-exchanger metals and boiler deposits
Types of water or steam commonly employed in most HW heating and steam generating plants
Commonly occurring minerals in natural MU water sources
Specific waterside / steamside problems affecting MPHW and HPHW boiler plants
Salt concentration indicators
Summary of waterside / steamside problems affecting LPHW and LP steam heating boiler plants
FW contamination from MU water
FW contamination from returned condensate
Problems associated with the final FW blend
Deposition of boiler section waterside surfaces by alkaline earth metal salts, other inorganic salts and organics
Silica and silicate crystalline scales and deposits affecting boiler section waterside surfaces
Iron oxide and other boiler section corrosion debris deposits
Boiler section corrosion problems involving oxygen, concentration cells and low pH
Stress and high temperature related corrosion
Steam purity, quality and other operational problems
Specification for grades of high-quality water suitable for higher pressure WT boilers
Practical considerations for a RW ion-exchange softener
Types of Internal Treatment Program
Carbonate Cycle Requirement Calculations
Phosphate-Cycle Requirement Calculations
A Guide to Tannin Residuals in BW
Carbonate-Cycle Program. BW Carbonate Reserve Requirements by Pressure and Sulfate Concentration
Carbonate-Cycle Coagulation and Precipitation Program. Recommended BW Control Limits for Non-Highly-Rated FT Boilers Employing Hard or Partially Softened FW
Phosphate-Cycle Coagulation and Precipitation Program. Recommended BW Control Limits for Non-Highly-Rated FT Boilers Employing Hard, Partially Softened, or Fully Softened FW
Phosphate-Cycle Coagulation and Precipitation Program. Recommended BW Control Limits for Non-Highly-Rated WT Boilers Employing Hard, Partially Softened, or Fully Softened FW
Chelant demand (ppm product) per 1ppm substrate
EDTA Chelant or All-Polymer/All-Organic Program. Recommended BW Control Limits for Fired WT Boilers Employing Demineralized or Similar Quality FW
Oxygen Solubility at Atmospheric Pressure
Properties of Oxygen Scavengers
Carbon Dioxide Evolution from FW Alkalinity
Amine Requirement to Reach a Stable Condensate pH
Amine Basicity Dissociation Constants
Neutralizing Amine Summary Notes
Some DR values for CO2, NH3 and neutralizing amines at various pressures
Calculating Alkalinity Feed-Rate Requirements
ASME Consensus table 1: Suggested water chemistry limits. Industrial watertube, high duty, primary fuel fired, drum typeMakeup water percentage: Up to 100% of feedwater. Conditions: Includes superheater, turbine drives or process restriction on steam purity
ASME Consensus table 2: Suggested chemistry limits. Industrial watertube, high duty, primary fuel fired, drum type
ASME Consensus table 3: Suggested chemistry limits. Industrial firetube, high duty, primary fuel fired
ASME Consensus table 4: Suggested water chemistry limits. Industrial coil type, watertube, high duty, primary fuel fired rapid steam generators
ASME Consensus table 5: Suggested water chemistry limits. Marine propulsion, watertube, oil fired drum type
ASME Consensus table 6: Suggested water chemistry limits. Electrode, high voltage, forced circulation jet type
Reduction in heat transfer efficiency with increase in deposit thickness, where A = iron oxides and silica, B = iron oxides, C = calcium carbonate
Notes
