## PREFACE

This textbook has been written as

a higher-education course in steam

boilers for thermal power stations.

It presents the theory of the processes

which occur in steam boilers, designs

of boilers for thermal power stations

and steam generators for nuclear power

stations, and the operating principles

of boilers and steam generators.

The material in the book is based

on four fundamental principles which

are closely interrelated and reflect

the current stale of progress in science

and technology: (1) the physics ico-chemical

processes in the fuel, gas-air, and

water-steam paths of modern high capacity

boilers; (2) the correlation

between these physicochemical processes

and the design, layout and

arrangement of steam boilers and their

elements; (3) advanced technological

processes and their technical and economical

substantiation; and (4) the

carrel ation between the processes occurring

in boilers and the principles

of boiler operation. This method of

analysis encourages the optimal selection

of technological processes, boiler

designs, and operating regimes.

At the beginning of the course, we

explain the role and place of the steam

boiler in the general scheme of electric

power production at modern highcapacity

steam-turbine power stations,

give the classification of steam boliers,

describe the functions of the principal

boiler elem ents and, in introductory

form , the physico-chemical processes

which occur in the water-steam,

fuel and gas-air paths of boilers.

Thus, the students are immediately

introduced to the range of topics which

are later discussed in more detail .

A number of chapters are devoted

‘

to power-producing fu els and their

characteristics , fu el prepnration for

combustion , the theoretical princi pIes

of combustion, techn ology of fuel

combustion , and effi ciency with which

heat is utilized in steam boilers.

Next the hook focuses on the principles

of hydrodynamics and the temperature

and water conditions in steam

boilers. This constitutes the r ange of

probl ems r elated to the procc!:ses of

steam generation.

Having studied the processes of fu el

combustion and steam generation, the

reader is acquainted with several particular

designs of s team boilers and

steam boiler elements. Special emphasis

is placed on the processes and plants

for high and supercritical steam parameters,

monobloc units, the uLilization

of non-traditional fuel s, and

methods for increasing the reliability

and efficiency of power plant equipment.

Furtheron, the book explains tlw

principles, stages and sequence of heat

and hydraulic calculations for steam

boilers, including data on the application

of el ectronic computers and

the development of mathematical models

of steam boilers. Tho concluding

chapters are of a generalized nature

and describe certain particular designs

of modern steam boilers, trends

in their development, and principles

of boiler operation.

In view of recent progress and perspectives

in nuclear power engineering

and the construction of high-capacity

nuclear power stations, of l arge theoretical

and practical interest are data

on tho steam generators of nuclear power

stations. For the first time in

higher-education textbooks, some pro-

cesses occurring in the steam boilers

of thermal power stali!)ns and steam

generators of nuclear power st~t~ons

are discussed in parallel. In addttiOn,

a separate chapter is devoted solely

to the steam generators of nuclear

power stations.

Tho authors have carefully selected

the illustrations for the book. For

deeper analysis of the proble~s hei~g

studied different types of b01ler cucuits

a~d designs are compared in illustrations.

In some illustrations, boilers

or their elements are shown in a

simplified form to facilitate the reader’s

understanding of how they function

and the processes which take

place in thoro.

many years of lectw·ing a course on

steam generators of power stations at

the l\•foscow power engineering institute,

which has been initiated by Academician

M. A. Styrikovich.

The authors would like to express

special tl18nks to their colleagues on

tho faculty of steam generators of

power stations at tho 1\’loscow pow~r

engineering inslitule [faculty cha•r

Prof. V. S. Protopopov, Dr. Sc. (Eng.)],

the reviewers or the book, the faculty

of steam generators at the Saratov

polytechnical institute [faculty chair

Prof. A. V. Zmachinsky, Dr. Sc.

(Eng.)] and B. I. Shmukler, Cand.

Sc. (Eng.), for their valuable comments

on the manuscript.