Steam Boiler: July 2011

Pressure Gauge with Bellow

Pressure gauge with bellow is the pressure gauge that is equipped with bellow. Bellow is thin metal which is shaped like an accordion bellow. Same as pressure gauge bourdon tubes, bellow also expands when the inside pressure is greater than outside pressure....

Pressure Gauge-Bourdon Tube

Pressure gauge with bourdon tube is a pressure gauge with is equipped with metal which easy to expands and hole is created on the metal. One end is created with closed condition and other end is made open to be connected with the pressure which then...

Definitions for Pressure in Boiler

Pressure is the force that occurs for each unit area in the plane, the unit of pressure which is widely used is kg/m2, Newton/m2, lb/inc2, kip/ft2 and so on. Besides that, there are units of pressure that are known and used in steam boiler or power plant...

Strainer in Steam and Condensate System

Shutdown, repair, and downtime of steam boiler or power plant should be reduced. This matter can be done by maintain steam and condensate systems in well performance. Plant or boiler damage is often caused by impurities in the pipeline such as scale,...

Steam Distribution Factors in Boiler

Steam pressure distribution in boiler is influenced by many factors and limited by: - The maximum safe working pressure in boiler- The minimum...

Steam Distribution System

Steam distribution system has important relationship between steam generator and steam users. There are various methods for carrying steam from the central source to the point of use. Central source may be boiler room or expenditure of the cogeneration...

Steam Quality Parameters

The following below are parameters in determining the quality of steam produced by boiler: - The amount of steam which is generated by boilers in accordance with required amount to drive turbine generator....

Phase Steam Diagram

The data provided in the steam table can also be expressed in graph form. Figure 1 illustrates the relationship between enthalpy and temperature at various pressures, and known as the phase steam diagram. Figure 1: Phase Steam Diagram When water is...

Waste Heat Boiler

Waste heat boiler is one of type boiler based on method of combustion. When waste heat at medium or high temperature is available, so waste heat boiler can be installed economically. If waste heat boiler needs more steam from the steam which is generated...

Thermic Fluid Heater Boiler

Currently, thermic fluid heater boiler has been widely used in various applications for indirect heating process. By using petroleum fluids as heat transfer medium, these heaters provide constant temperature. Combustion system consists of fixed grate...

Boiler Heat Balance

Boiler performance parameters such as efficiency and evaporation ratio, decreases with time due to poor combustion, surface fouling of heat transfer, poor operation and bad maintenance. Even for a new boiler, for reasons such as poor fuel quality and...

Boiler Fuel

The fuel can be defined technically as any material that can burn. While commercially, the fuel can be called as any material that has specific calorific value and is able to react with oxygen in air to produce heat. Generally, fuel can be classified...

Boiler Feed Water Treatment

Water used in boilers is water which the content of mineral had been released and filtered (demin water) because the mineral content in water can damage the parts of boiler. To eliminate the mineral content in water, can use the flocculation and clarification...

Circulation Water in Steam Boiler

Circulation of water in the pipes/tubes in steam boiler is a very important thing to be designed. Boiler must be designed in such a way that avoided the formation of steam and out of the water wall tubes from steam drum. In other words, should not be...

Convection Heat Transfer in Liquid Phase

Convection heat transfer with heat flux (φ) constant is calculated using the following equation: qconv = φ . A Where: A = Area of the heated surface (m2). In the pipe, cross-sectional area which is heated is π.D.z φ = Heat flux on the surface of pipe...

Boiler Type O and Type A

Boiler Type O Boiler type O has 2 drums, they are steam drum and mud drum. The composition of the convection tubes and water wall tubes forming the letter O. Combustion chamber is placed in the middle between convection tubes and water wall tubes. Boiler...

Water Tube Boiler

In water tube boilers, boiler feed water flowing through the tubes into steam drum, water drum and header. Water is heated by gas burners or other fuel combustion to form steam and to be distributed into steam drum. Water tube boiler is selected if its...

Characteristic Output of ESP (Electrostatic Precipitator)

Characteristic output of ESP (Electrostatic Precipitator) is a comparison between voltage and current density. Characteristic voltage and current generated in the control system is a combination of high voltage rectifier transformer and precipitator...

Economizer as Supporting Instrument in Steam Boiler

Economizer has similar function with deaerator as supporting instrument in steam boiler, though only enhancements, the usefulness of economizer can make working process of steam boiler will be more efficient. Where we know the burning water in economizer...

Deaerator as Supporting Instrument in Power Plant

In this deaerator water will be heated to a temperature of 100 oC -105oC, temperature of water is initially 30 oC - 50 oC. After going through the process of preheating the feed water then flowed into the economizer to be heated back up to the...

Deaerator-Economizer as Feedwater Heater in Steam Boiler

Use of deaerator and economizer as auxiliary instruments in warm feedwater before the feedwater is burned in a boiler. Water is obtained from the raw water that has been in treatment to conform to the standards set supplied to deaerator with the aim...

Heating Process in Steam Boiler

With rising temperatures and water near its boiling conditions, some molecules gain enough kinetic energy to reach the speed that made him any time off from the liquid into the space above surface, before falling back into the liquid. Further heating...

Feed Water Process of Boiler

A boiler is a closed vessel where the combustion heat flowed into the water until it forms a hot water or steam. Hot water or steam at a certain pressure and then used for transferring heat to a process. Water is a useful and inexpensive medium for...