Dr V T Sathyanathan's Latest Articles

61 years old

Trichy, Tamil Nadu, India

Male

11.30.08

Dr V T Sathyanathan (4,014 pts

)

Writer in 2 Channels

Contributions: 53

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

Reheater Steam Temperature Imbalance in Tangential Fired Boilers
Reheat steam temperature imbalance in tangential fired boiler is common when coal is the fuel and the quality of coal changes. It can lead to higher tube metal temperature and can bring down life of tube depending upon increase from the allowable value. Reasons and how to correct this are discussed.
Published by Dr V T Sathyanathan (4,014 pts ) on Nov 5, 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

Fouling in Boiler Heat Transfer Surface
Fouling of the heat transfer surface of a boiler is a factor which can reduce availability of the boiler as well as reduce the operating efficiency of the plant. Fuel composition, heat transfer surface arrangement, gas velocity adopted, etc, are the key factors for reducing fouling in boiler.
Published by Dr V T Sathyanathan (4,014 pts ) on Oct 22, 2009 to
Mechanical Engineering Articles

Flame Failure Causes in Boiler and Operator Action
There are many causes that can contribute to boiler flame failure. Operating the boiler with unstable flame is always dangerous and can lead to boiler explosion. Tripping the boiler is the option for all boiler designers and operators.
Published by Dr V T Sathyanathan (4,014 pts ) on Oct 15, 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

Carryover From Boiler Drum
Carryover from the boiler drum leads to deposit in superheaters of boiler and turbine blades. Carryover from drum is of two types- mechanical and vaporous carryover. Deposits in superheater tubes results in overheating failure. In the turbine, this reduces the turbine efficiency.
Published by Dr V T Sathyanathan (4,014 pts ) on Oct 10, 2009 to
Mechanical Engineering Articles

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