Construction And Working Of Lancashire Boiler Pdf

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• To study the constructional features of Lancashire Boiler | BME Lab Manual
• Lancashire Boiler
• Lancashire Boiler : Principle, Construction & Working

Lancashrie boiler is a horizontal internally fired, natural circulation fire tube boiler.

To study the constructional features of Lancashire Boiler | BME Lab Manual

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Lancashire Boiler

Lancashire Boiler is a fire tube boiler. It was developed in by Sir William Fairbairn. It is a stationary type boiler and works on the principle of a Heat exchanger. In this paper, we will study the definition, Construction, Working principle, Advantages, Disadvantages, and Application of Lancashire Boiler. Make sure if you want to download the PDF version then at the end of the article you can download it.

Lancashire Boiler : Principle, Construction & Working

BOILERS introduction :A closed metallic vessel in which the water is heated beyond the boiling temperature by the application of heat by the combustion of fuels to convert it into steam. The function of the boiler is to supply the steam at constant pressure with desired quality by maintaining the steam generation rate and the steam flow rate equal. Classification of Boiler: Based upon relative position of water and flue gas hot gas carrying tubes, 1 Fire tube boiler 2 Water tube boiler Based upon location of furnace, 1 Externally fired boiler 2 Internally fired boiler Based upon method of water circulation, 1 Natural circulation 2 Forced circulation Based upon direction of principle axis of the shell, 1 Horizontal axis boiler 2 Vertical axis boiler 3 Inclined axis boiler Based upon pressure of the steam produced, 1 High pressure boiler 2 Low pressure boiler Based upon usage, 1 Stationary boiler 2 Portable boiler 3 Locomotive boiler 4 Marine boiler Fire tube Boiler: In the fire tube boiler, the hot gases produced by the combustion of fuel are passed through tubes around which the water circulates as shown in the figure 1 Example: Lancashire boiler, Cornish boiler.

Lancashire boiler works on the principle of the heat exchanger. The heat is a transfer from exhaust gases to the water through convection. It is a natural circulation boiler which uses natural current to flow the water inside the boiler. It is basically a shell and tube type heat exchanger in which the exhaust gases flow through the tubes and the water flows through shell.

Lancashire Boiler is a horizontal, low pressure, internally fired, stationary fire tube and natural circulation boiler. This boiler was invented in the year by William Fairbairn. William Fairbairn was a Scottish civil engineer. It is called internally fired because the furnace is present inside the boiler. The main purpose of this boiler is to produce steam and this steam is used for different purposes.

It is a stationary, fire tube, internally fired boiler. The size is approximately from meters in length and meters in diameter. Construction of Lancashire Boiler: It consists of Cylindrical shell Furnace tubes, bottom flue and side flues Grate Fire bridge Dampers Cylindrical shell It is placed in horizontal position over a brick work.

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