Boiler Specification The heating surface
A boiler is an enclosed vessel that provides a means for combustion heat to be transferred into water until it becomes heated water or steam.
- The heating surface is any part of the boiler metal that has hot gases of combustion on one side and water on the other.
- Any part of the boiler metal that actually contributes to making steam is heating surface.
- The amount of heating surface of a boiler is expressed in square meters.
- The larger the heating surface a boiler has, the more efficient it becomes.
- The quantity of the steam produced is indicated in tons of water evaporated to steam per hour.
- Maximum continuous rating is the hourly evaporation that can be maintained for 24 hours.
- F & A means the amount of steam generated from water at 100 °C to saturated steam at 100 °C.
Indian Boiler Regulation
The Indian Boilers Act was enacted to consolidate and amend the law relating to steam boilers. Indian Boilers Regulation (IBR) was created in exercise of the powers conferred by section 28 & 29 of the Indian Boilers Act.
IBR Steam Boilers means any closed vessel exceeding 22.75 liters in capacity and which is used expressively for generating steam under pressure and includes any mounting or other fitting attached to such vessel, which is wholly, or partly under pressure when the steam is shut off.
IBR Steam Pipe means any pipe through which steam passes from a boiler to a prime mover or other user or both, if pressure at which steam passes through such pipes exceeds 3.5 kg/cm2 above atmospheric pressure or such pipe exceeds 254 mm in internal diameter and includes in either case any connected fitting of a steam pipe.