Classification

1. BRANCH-CIVIL
 ENROLLMENT NO
 131100106042-PATELYASHKUMAR
 131100106022-NASIT VIMAL PRAFULBHAI
 131100106026-PATEL DIPESHKUMAR JAYANTIBHAI
 131100106016-KUNJ NILAMKUMAR NAIK
 131100106009-GAJERA VIVEK HASMUKHBHAI
 131100106039-PATEL SHIVANIBAHEN BHASKARBHAI
 131100106046-RANA SHIVANI RAJESHBHAI
 131100106057-VAGHASIYA PRATIKKUMAR B
 131100106012-JANI RIDHAM ASOKBHAI
 131100106049-SAVALIYA HARSHKUMAR

2.  Boiler is a closed vessel in which
the heat produced by the
combustion of fuel is transferred
to water for its conversion into
steam at the desired temperature
and pressure.
 Broadly speaking, a boiler is a
device used for generating :-
a) Steam for power generation
b) Hot water for heating purpose

3.  It is a closed pressure vessel in which steam
is generated with capacity exceeding 25
liters, gauge pressure greater than or equal
to 1 kg/cm², and water is heated at 100 °C
or above.

4. mechanical power is produced
by a heat engine that transforms
thermal energy (from combustion
of a fuel) into rotational energy
Heat (generated in the
furnace) is transmitted to the
boiler where water forced into
the boiler by the feed pump is
converted into steam

5.  The primary requirements of steam generators or boilers
are:
a) The water must be contained safely
b) The steam must be delivered safely in desired conditions
as regards its pressure, temperature, quality and
required rate

6.  The selection of type and size of a steam boiler depends upon the following
factors:
 The power required and the working pressure
 Geographical position of the plant
 Availability of fuel
 Supply and quality of feed water
 The probable load factor
 Space available
 Labour available
 Adaptability to the type of furnace and stoker
 Steam pressure and superheat desired
 Nature and intensity of draught

7. The Boilers may be classified as under:
 Horizontal boiler, vertical or inclined boilers
 Fire tube and water tube boilers
 Externally fired and internally fired boilers
 Forced circulation and natural circulation boilers
 High, medium and low pressure boilers
 Stationary boiler and portable boiler
 Single tube boilers and multi tube boilers

8.  Cylindrical shell: different parts of boiler are enclosed &
fitted on it
 Grate: platform in furnace on which fuel is burnt
 Furnace (fire box): space above the grate & below the
shell in which combustion takes place
 Fire hole: hole through which fuel is added to furnace
 Ash pit: area in which ash of burnt coal is collected

9.  Smoke chamber (smoke box): waste gases is collected here
& then release to chimney & then to atmosphere
 Man hole: hole on boiler shell through which workman
can go inside for inspection, cleaning & maintenance
 Hand hole: for cleaning water tubes or other internal
parts of boiler
 Mud box: collects impurities present in water
 Blow of cock: impurities collected in mud box is removed
by blow of cock

10.  SPECIFICATION:
 VERTICAL
 FIRE TUBE
 MULTI TUBE
 INTERNALLY FIRED
 NATURAL CIRCULATION
 STATIONARY BOILER

11.  SPECIFICATION:
 HORIZONTAL
 FIRE TUBE
 MULTI TUBE
 INTERNALLY FIRED
 NATURAL CIRCULATION
 STATIONARY BOILER
 MEDIUM PRESSURE

12.  SPECIFICATION:
 HORIZONTAL
 WATER TUBE
 MULTI TUBE
 EXTERNALLY FIRED
 NATURAL CIRCULATION
 STATIONARY BOILER
 HIGH PRESSURE