The  "CETHAR"  Heat Recovery steam generator is a vertical  single  drum  boiler consisting  of economiser, evaporator, superheater, hot gas inlet  duct,  outlet gas duct, interconnecting pipings, instruments and controls etc.,  The  HRSG   unit  is   suitable  for  outdoor  installation  and  designed  to  generate   steam  at   High pressure and high temperature  from hot gases of kiln outlet around 900 to 950 Deg C.

Exhaust gas from ABC (After Burning Chamber) of kiln enters the radiant chamber where it gets cooled sufficiently before entering into screen tube section.  The gas then passes through super heater section, evaporator section and economiser section and let into the ESP. ID fan draws the exhaust gas and lets into atmosphere through the chimney.

Steam drum is of cylindrical fusion welded construction. It is provided with Turbo separators, screen separators and baffle boxes for effective separation of water from steam water mixture.

The purpose of radiant chamber is to cool the dust laden gas below ash fusion temperature before it enters the screen and super heater section the gas travels vertically downwards and takes a 180 degree turn at the bottom.  This will greatly aid in removal of dust particles in the gas. Evaporator section has horizontal, inclined, inline tube arrangement.  It is connected to the steam drum through adequately sized down comers and risers. The evaporator tubes are supported from water wall. Adequate soot blowers are provided to remove soot deposition.