· PDF filewater until it becomes heated water or steam. The hot water or steam under pressure is then usable for transferring the heat to a process. Water is a useful and cheap medium for transferring heat to a process. When water is boiled into steam its volume increases about 1,600 times, producing a force that is almost as explosive as gunpowder. This causes the boiler to be extremely dangerous equipment …

This is particularly true for the case of steam networks in which steam condensation occurs at discrete temperature intervals (latent heat) as shown in the example in Fig. 5.15. This implies that the stack temperature is determined by the steam temperature at the lowest pressure level (LP in the figure), or possibly by feed-water preheating if the condensate returns at a temperature much below saturation.

Fire tube boiler; Water tube boiler; In a fire tube boilers hot gas or fires goes inside the tubes and tubes are surrounded with water. Hot gases transfer heat to the water through a couple tubes. Earlier fire is inside the tube so it is naming as fire tube. Cochran boiler and locomotive boiler is an example of fire tube boiler.

Fire-tube boiler: Here, water partially fills a boiler barrel with a small volume left above to accommodate the steam (steam space).This is the type of boiler used in nearly all steam locomotives.The heat source is inside a furnace or firebox that has to be kept permanently surrounded by the water in order to maintain the temperature of the heating surface below the boiling point.The furnace can be situated …

The use of heat from a boiler's flue gases by installing heat and mass transfer devices and heating the network water in heat supply systems [10], the cold air supplied for combustion [11] or the

· DOC file· Web view5) In a steam boiler, hot gases from a fire transfer heat to water which vaporizes at constant temperature. In a certain case, the gases are cooled from 1100oC to 550oC. The specific heat of gases is 1.005kJ/kg K and the latent heat of water at 220oC is 1858.5kJ/kg. All the heat transferred from the gases goes to the water. How much does the total entropy of the combined system of gas and …

A fire-tube boiler is a type of boiler in which hot gases pass from a fire through one or (many) 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.. The fire-tube boiler developed as the third of the four major historical types of boilers: low-pressure tank or …

19-07-2019· Definition of a Boiler: A boiler is a closed insulted case where heat is generated inside by the combustion of coal, A draught fan should be arranged to escape combustion gases. The produced steam should be used effectively; there should not be any heat loss. Due to the difference in temperature heat will be transferred naturally from one object to the other. Different Types of Heat …

The water supplied to the boiler that is converted into steam is called feed water. The two sources of feed water are: Boilers can be classified as follows: water and hot gases – fire tube (or

27-12-2013· The hot gases from the combustion chamber flow through the horizontal fire tubes and transfer the heat to the water by convection.The flue gases coming out of fire tubes pass through the smoke box and are exhausted to the atmosphere through the chimney.Smoke box is provided with a door for cleaning the fire tubes and smoke box.The following mountings are fitted to the boiler:Pressure …