Working Principle of Boiler
Working Principle of Boiler As we discussed in the previous article, the boiler is a closed container containing water or another fluid to be heated. Even though a boiler does not have to function to boil fluids, we are more familiar with boilers which function to boil water to produce water steam. So that in general we better understand that a boiler is a tool for producing steam
The working principle of the boiler is actually quite simple as when we are boiling water using a pan. The process of boiling the water will always be accompanied by a heat transfer process involving fuel, air, water container material, and water itself. This heat transfer process includes three types of heat transfer that we already know very well, namely conduction, convection, and radiation. water.
In the water pipe boiler above, for example, heat sources are obtained from burning fuel in the furnace. This heat energy will radiate in part to the evaporator pipes so that they heat up the pipes. The heat absorbed by the surface of the pipe will conductively move to the side of the surface in the pipe. In the pipe, water flows that constantly absorb the heat. The process of spreading heat between water molecules in this stream occurs by convection. Convection heat transfer between water molecules, as if creating a separate fluid flow regardless of the flow of water in the boiler pipes.
Steam Formation Process in Boiler Pipes
The combustion gas containing heat energy will continue to flow following the shape of the boiler to the output side. Throughout the trip, the heat contained in the exhaust gas will be absorbed by the boiler tubing surface and forwarded conduction to the water in the pipe. Gradually, the water will change phase into wet steam and can continue to become superheated steam.