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How does a Circulating Fluidized Bed Boiler Work ?

Circulating Fluidized Bed combustion has given boiler and power plant operators a greater flexibility in burning a wide range of coal and other fuels. All this without compromising efficiency and with reduced pollution. How does the boiler work with this technology?

Published by johnzactruba (3,261 pts ) on Nov 24, 2009 to
Mechanical Engineering Articles
What is Boiler Hydrostatic Test?

The boiler in a modern Thermal Power Plant produces steam at very high pressures and temperatures. One of the most important yet simple test that ensures the integrity of the boiler is the ‘Hydrostatic Test’. What is it? How is it done?

Published by johnzactruba (3,261 pts ) on Nov 24, 2009 to
Mechanical Engineering Articles
Robotics: Scope and Limitations of Robots

Robotics engineers can design robots which can do a whole lot of things, ranging from delicate and precision tasks such as fitting small parts of watches and to the hazardous tasks such as fuelling the chambers of nuclear reactors. Robots are thought to be super-machines but they have limitations.

Published by naveenagrawal (3,264 pts ) on Nov 24, 2009 to
Mechanical Engineering Articles

Hydraulic Turbines: The Pelton Turbine

In a Pelton Turbine or Pelton Wheel water jets impact on the blades of the turbine making the wheel rotate, producing torque and power. Learn more about design, analysis, working principle and applications of Pelton Wheel Turbine.

Published by naveenagrawal (3,264 pts ) on Nov 24, 2009 to
Mechanical Engineering Articles
Types of Flexible Coupling – Jaw Type Elastomeric Coupling

This article deals with Jaw type Elastomeric coupling. The article describes the constructional aspects of the coupling and selection procedures.

Published by kkaarthic (3,396 pts ) on Nov 24, 2009 to
Mechanical Engineering Articles
How to Handle Very Low Primary Air Header Pressure in Boilers

The specific causes, plant response, the control room operator action required and the local operator action needed are known when primary header pressure in coal fired boiler goes very low then boiler trip can be avoided.

Published by Dr V T Sathyanathan (4,059 pts ) on Nov 24, 2009 to
Mechanical Engineering Articles

Renewable Energy from Landfill Gas

Although we are rapidly running out of sites for our Municipal Solid Waste (MSW) there are plenty of old sites about. These sites can be exploited for landfill gas, a product of decomposing organic waste. This gas can be used to power reciprocating engines or gas turbines to produce electricity.

Published by WillieS (1,689 pts ) on Nov 24, 2009 to
Mechanical Engineering Articles
Dynamics of Manipulators

After positions, orientations and velocities of manipulator parts this is the right point to introduce you to the forces which cause motion of the manipulator. In this article we will get to know how the motion of manipulator is obtained from forces applied to the manipulator and vice versa.

Published by naveenagrawal (3,264 pts ) on Nov 23, 2009 to
Mechanical Engineering Articles
HVAC System : What is a Zone? Part -1

Have you ever heard about zones in HVAC system? Do you know what are their uses and how they are helpful?We know that there are high thermal variations in any HVAC installation. So how do we really increase the efficiency of any HVAC system? Is it really possible?Lets find out.

Published by Raunekk (16,920 pts ) on Nov 23, 2009 to
Mechanical Engineering Articles
HVAC System: Zones and Designing a Zonal System - Part 2

This article is a continuation to a previous article that describes zones in HVAC system and why zoning is done. In this article we will learn about the various factors that are taken into consideration while zoning or designing a zonal system.

Published by Raunekk (16,920 pts ) on Nov 23, 2009 to
Mechanical Engineering Articles