Construction and Working of Steam Boilers (With Diagram ...
ADVERTISEMENTS: In this article we will discuss about the construction and working of various boilers with diagram. Construction of Lancashire Boilers: The modern Lancashire boilers are dish ended and welded pattern at least for higher pressures instead of the older flat ended riveted type. The dish ended construction reduces the tendency of bulging of the 
If the saturated steam produced in a boiler is exposed to a surface with a higher temperature its temperature will increase above the evaporating temperature. The steam is then described as superheated by the number of temperature degrees through which it
Overheated steam: The specific heat of the steam lies between 2.08 and 6.7 kj/kg °C (according to the pressure of use) For the networks of big length the overheated vapor avoids the presence of condensates which can be formed only if the vapor is saturated.