Role of feedwater heaters in a steam boiler is important to make efficiency of steam boiler higher. A feedwater heater is a heat exchanger that has function to heat feedwater before to be supplied to a steam boiler. The feedwater heater is used to bring...
Water Treatment Before Supplied to Steam Boiler
Water treatment is the process of making the raw water from any natural source, such as a river, well, or lake, suitable for feeding into a steam boiler. Water must be treated to prevent scale deposit and to control corrosion. If a steam boiler surface...
Heat Transfer within Steam Boiler
Fig. 1: Heat Transfer within Steam Boiler
A steam boiler is designed to absorb the maximum amount of heat released from the process of combustion. Heat transfer within steam boiler is accomplished by three methods: radiation, convection, and conduction....
Steam Boiler Efficiency
Steam boiler efficiency is very important information to indicate among other factors the fuel usage, which in turn determines operating cost. There are several ways of defining steam boiler efficiency:
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Requirement of Water for Steam Boiler
Fig.1: Water Tank of Steam Boiler
Water is only medium for generation of steam. In a steam boiler system, water is continuously fed as feedwater that is converted into steam and delivered constantly to main steam header. The quality of water is obviously...
Combustion System of Steam Boiler
Combustion is the name given to the chemical reaction between fuel and oxygen which results in the production of heat. The oxygen is usually derived from the air, which unites chemically with the carbon, hydrogen, and a few minor elements in the fuel...
Reference:
Books:
1. Mohammad A. Malek: Power Boiler, Design, Inspection, and Repair ASME Code Simplified, MacGraw Hill 20042. Carl D. Shield: BOILERS Type, Characteristic, and Fuctions, MacGraw Hill 19823. ...
Simple Flow Diagram of Steam Boiler
Fig.1: Simple Fowl Diagram of Steam Boiler
The simple flow diagram of steam boiler in Figure 1 shows that steam boiler comprises various system, such us a feedwater system, a fuel system, a steam system, product of combustion system, a stack system,...
Classification Steam Boiler Based on Tube Type
A steam boiler is closed vessel in which water, is transformed into steam by application of heat. Classification of steam boiler generally can be seen here and the heating transfer through tubes can be classified as:
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Classification Steam Boiler Based on Fuel
A steam boiler is closed vessel in which water, is transformed into steam by application of heat. Heating is caused by combustion of mixture of fuel, oxygen, and heat source. Classsification of steam boiler generally can be seen here and the...
Classification Steam Boiler Based on Pressure
A steam boiler is closed vessel in which water, is transformed into steam by application of heat in under pressure condition. Classification of steam boiler generally can be seen here and based on pressure can be classified as:
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Steam Boiler Classification
Steam boilers are built in the world from 200 BC until today, many developments have taken place that allow us to classify steam boiler in different ways. Hence steam boiler may be classified based on the following characteristics:
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Steam Boiler Definition
Figure 1. Steam Boiler 2x7 MW
A steam boiler is defined as a boiler use heat to convert water into steam for a variety of application. Though useful to heat one's home or business, the steam can still be used to power steam engines or other, similar...
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