Water tube boiler

A multiple tube circuit heat exchanger within a gas-containing casing in which steam is generated inside the tubes by heat transferred from a hot gas flowing over the tubes.

Water tube pipe coil HRSG in a pressure vessel

A tube or pipe coil circuit within a pressure vessel in which steam is generated inside the tubes by heat transferred from a high-temperature fluid or fluidized solids surrounding the tube circuits.

Water tube low pressure casing HRSG

A multiple tube circuit heat exchanger within a gas-containing casing in which steam is generated inside the tubes by heat transferred from a hot gas flowing over the tubes.

Whiskers

Whiskers are obtained by elongating single crystal into fibrous form. Greatest Strength is usually observed in whiskers of smallest diameter.

Weber's Number

It is defined as the square root of the ratio of the inertia force of a flowing fluid to the surface tension force

Work

Work is defined for mechanical systems as the action of a force on an object through a distance.

A positive value for work indicates that work is done by the system on its surroundings; a negative value indicates that work is done on the system by its surroundings.

EARTH HOUR

EARTH HOUR is a global event organized by WWF (World Wide Fund for Nature, also known as World Wildlife Fund) and is held on the last Saturday of March annually, asking households and businesses to turn off their non-essential lights and other electrical appliances for one hour to raise awareness towards the need to take action on climate change.

Weight

The weight (wt) of a body is the force exerted by that body when its mass is accelerated in a gravitational field.

Water Tube Boilers:

• It is boiler with heat source outside the tube(shell side) and water to be heated is inside the tube.

Water Tube Boilers

• It is boiler with heat source outside the tube(shell side) and water to be heated is inside the tube.

Wind Up

To bring a limited company to an end either voluntarily or by order of the court.

Wash Sales

It is a transaction in which a speculator sells a security and then buys it at a higher price through another broker. This will create an impression that there is great demand for that security. As a result, people may be induced to purchase them at a very high price.

Wear and Tear

The depreciation of the value of a thing as a result of ordinary usage as distinct from damage resulting from negligence or accidental causes.