ABSTRACT
This appendix is included to enhance the appreciation of the fundamentals and to simplify basic process calculations.
Boilers encounter different steaming conditions using a variety of fuels, and are calculation-intensive. All boiler users are required to perform the peripheral or process calculations. For that reason they are included here. The sizing calculations of various boiler parts that require proprietary data and the coded strength calculations for various pressure parts (PPs), are not included because they are of interest only to boiler designers. A small nonreheat industrial stoker-fi red boiler for coal fi ring was selected (see Table A1) to keep the calculations simple, so that the methodology is well understood. When calculations are done on different systems of units, some marginal differences are inevitable in the end results because of rounding of fi gures and small differences in conversions. These are best ignored. The calculations are kept simple. Complex calculations may be required only by the boilermakers. Calculation methods, safety margins, range of conditions, etc., vary with the boilermakers, boiler sizes, and clients/consultants. Other than in coded calculations, there are slight variations in sizing and design practices. Most calculations are performed in all three systems, namely, FPS, metric, and SI units to make them understandable to all.
