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Failure of Furnace Seal - Causes and Effect
Furnace seal breakage can result in unit trip either due to high furnace pressure or due to flame failure. Hence it is a good operating practice to keep a regular check and maintain the water level in the furnace bottom seal trough.
Published by
Dr V T Sathyanathan
(4,014 pts
) on Nov 20, 2009 to
Mechanical Engineering Articles
High Furnace Pressure Problems in Boilers
High furnace pressure is a direct indication of a disturbance in combustion performance. The rate of change in the furnace pressure can vary very much, that is from a simple sudden surge due to fuel variations to a huge furnace explosion.
Published by
Dr V T Sathyanathan
(4,014 pts
) on Nov 15, 2009 to
Mechanical Engineering Articles
How to Conduct a Boiler Performance Test
The performance test in a boiler evaluates the practically achievable boiler efficiency. Performance tests are also carried out to prove boiler guarantees. As guarantees involve contractual conditions, the procedure involved are more elaborate than the test for evaluating performance.
Published by
Dr V T Sathyanathan
(4,014 pts
) on Nov 13, 2009 to
Mechanical Engineering Articles
Effect of Mill Outlet Temperature on Boiler Performance
The mill outlet temperature directly impacts the dry gas loss in boiler which is a major loss and in turn a loss of boiler performance and efficiency. Two major parameters which decide the mill capacity and performance are the hardness of the coal and the total moisture level in the coal.
Published by
Dr V T Sathyanathan
(4,014 pts
) on Nov 11, 2009 to
Mechanical Engineering Articles
How does a Power Plant Boiler work? - Water and Steam System.
The boiler generates high pressure steam by transfering the heat of Combustion in various heat transfer sections. This part of the article series briefly describes the flow and arrangement of the heat transfer sections in a boiler. In line diagrams help make the concept clear.
Published by
johnzactruba
(3,208 pts
) on Oct 31, 2009 to
Mechanical Engineering Articles
How does a Power Plant Boiler work? - Combustion System
Boilers burn coal to produce steam. Burning coal involves fuel preparation, providing the necessary combustion air and removal of the flue gases and ash. What are the main elements of the Combustion system in a large power plant boiler? Read this article to find the answers.
Published by
johnzactruba
(3,208 pts
) on Oct 31, 2009 to
Mechanical Engineering Articles
Boiler Efficiency Calculation Simplified
A practical and simple method for calculating the efficiency of coal fired boilers is given in this article. Practical assumptions are used to simplify the otherwise elaborate calculations of the Boiler test codes.
Published by
johnzactruba
(3,208 pts
) on Oct 30, 2009 to
Mechanical Engineering Articles
Determining Boiler Efficiency
Determining and adjusting the efficiency of a boiler in a power plant or a process industry is essential for energy savings. The main requirements for determining the boiler efficiency is detailed in this article.
Published by
johnzactruba
(3,208 pts
) on Oct 30, 2009 to
Mechanical Engineering Articles
Reheater Temperature Control in Boilers
Reheater temperature variation will have an impact on the cycle efficiency of the plant. Boiler designers adopt methods like divided second pass, burner tilting, water injection, gas recirculation, etc. to control reheater steam outlet temperature.
Published by
Dr V T Sathyanathan
(4,014 pts
) on Oct 24, 2009 to
Mechanical Engineering Articles
Both Regenerative Air Pre-Heater Motors Trip - Tips to Handle
In regenerative type air heater in boiler when the electrical motor trips always the air motor start on auto. Failure of this will lead to a major breakdown of air pre-heater and loss of availability of boiler.
Published by
Dr V T Sathyanathan
(4,014 pts
) on Oct 13, 2009 to
Mechanical Engineering Articles
showing 1-10 of 28
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