28-08-2014, 02:43 PM
I am working with Ranbaxy Laboratories, Mohali in Engineering Department (boiler room). They are using fire tube boiler for stream generation. A fire-tube boiler is a type of boiler in which hot gases from a fire pass through one or more tubes running through a sealed container of water. The heat of the gases is transferred through the walls of the tubes by thermal conduction, heating the water and ultimately creating steam. Fire tube boilers may be used in steam or hot water applications. They may also be used to heat or vaporize liquids other than water, such as an organic or synthetic fluid. They are using boiler steam for preparing of medicines, which is manufactured to sell in the market. Boiler is operating daily on temperature of 1300C to 1900C and 6 to 7 kg/sq.cm. of steam pressure. In actual practice they require only 4 to 5 kg/sq.cm. of pressure. So, by pressure reducing valve they are decreasing the pressure. By analysis of pressure at every stage we will carry out heat loss and try to reduce the heat loss. It is useful to recover heat loss during operation of boiler