Bulging of a tube

      Bulging is generally an indication of overheating. Continuing under the same temperature and stress conditions will eventually lead to creep and stress rupture. The amount of bulging varies with the specific metal and the type of damage, creep or overstress. If the bulge is attributed to overstress (short-term overheating), and the temperature and stress have been returned to normal, typically the life of the tube has not been reduced. Creep life will be reduced, if the bulge is the result of creep damage (long-term overheating). Bulging is considered more serious than sagging or bowing.

Bowing of a tube

Excessive bowing is generally caused by uneven metal temperatures, which may be due to flame impingement or coke accumulation inside the tube. Heating on one side of the tube causes greater thermal expansion on the hotter side and bowing toward the heat source. Bowing may also be caused by binding of the tube in the tube sheets or improper suspension of the tube so that longitudinal expansion is restricted or by the use of improper tube lengths when individual tube replacements are made.

Bragg peak

The peak of radiation dosage at the end of the proton's path is known as the Bragg peak.

Butterfly Damper

A single-blade damper pivoted about its center

Bridgewall

A division or gravity wall which separates two adjacent heater zones.

Breeching

The heater section where the flue gases are collected after the last convection coil for transmission
to the stack or the outlet duct work.

Backup layer (Boiler)

Any refractory layer behind the hot face layer

Boyle's Law

The pressure of a gas expanding at constant temperature varies inversely to the volume.

Battery electric vehicles (BEV)

Electric vehicles driven purely by an electric motor. The BEV battery pack must be charged using external power from a wall outlet.

Brayton cycle

A thermodynamic cycle that describes gas turbine engines. Inlet gas is brought to high pressure through a compressor, after which it is heated in a combustion chamber and expanded through a turbine for energy extraction. It is an "open" system, in that the working fluid is not recycled.

Barrel

A unit of volume equal to 42 U.S. gallons.

Boiler

• A boiler is a closed vessel in which water or other fluid is heated under pressure.
• The hot fluid is then circulated out of the boiler for use in various purposes or heating applications.

Boiler

• A boiler is a closed vessel in which water or other fluid is heated under pressure.
• The hot fluid is then circulated out of the boiler for use in various purposes or heating applications.

Bill purchase / discounting

Bill purchase / discounting are modes of extending credit to the seller of
goods who has raised demand / usance bill of exchange. Demand bills are
purchased and usance bills are discounted.

Bills

Bills are financial negotiable instruments such as Bills of Exchange or
Promissory Notes. Bill of Exchange is issued by a seller to his buyer directing
him to make payment for the goods supplied/ services rendered. Bill in the
form of a promissory note is issued by a buyer to his seller undertaking to
make payment for the goods received/ services rendered.

Banking Ombudsman

Banking Ombudsman is an independent dispute resolution authority set up
by the Reserve Bank of India to redress customer complaints against
deficiency in certain banking services.

Bank guarantee

Bank guarantee is a promise by a bank on behalf of its customer to a third
party to pay an amount specified in the guarantee deed in case the customer
fails to perform the obligation as stipulated in the deed.

Balanced Fund

The aim of balanced funds is to provide both growth and regular income as such schemes invest both in equities and fixed income securities in the proportion indicated in their offer documents. These are appropriate for investors looking for moderate growth. They generally invest 40-60% in equity and debt instruments. These funds are also affected because of fluctuations in share prices in the stock markets. However, NAVs of such funds are likely to be less volatile compared to pure equity funds.

BOND ENERGY

The certain amount of energy which is released when a new bond is formed is called bond energy.

Bandwidth

Amount of data transfer used on your account, whenever an email is received or sent, or when files are downloaded and uploaded.