Why Condition Your Boiler Water?

Written by Thomas Yoon

A boiler is used for generating steam. It does this by heating water to its boiling point, after which steam will evaporate from it.

When you boil a kettle of water, you will shut offrepparttar fire or electric power whenrepparttar 127640 water comes to a boil.

No so with a steam boiler. Generation of steam is a continuous process. Once a boiler is generating steam, it may take quite a long while before it is stopped. When steam is evaporated fromrepparttar 127641 water, new water has to be added in to replacerepparttar 127642 water given out.

As more and more steam is evaporated,repparttar 127643 water becomes more and more concentrated with salts and other impurities. If you use your kettle for a long while, you will see some chalky deposits inside it.

The fresh water supplied to replenish those lost through evaporation cannot be pure and free from salts. Even minute quantities of salt inrepparttar 127644 water will eventually become so concentrated as to form scales or deposits. The deposits are usually calcium or magnesium salts.

These scales are very damaging torepparttar 127645 boiler because they interfere withrepparttar 127646 heat transfer and can lead to overheating and eventually, boiler rupture.

Get Hot on Combustion!

Written by Thomas Yoon

Energy inrepparttar form of heat is obtained when fuel is burnt in air. The release of this heat energy can be slow or can be very rapid.

When fuel oil is sprayed as a fine mist inrepparttar 127639 boiler burners, it is able to burn at a relatively slow rate. When fuel is sprayed intorepparttar 127640 cylinders of diesel engines,repparttar 127641 fuel burns in such a rapid rate that explosions occur. Fortunately, these explosions are protected from persons as these engines are called internal combustion engines.

Whatever type of combustion, it is a chemical reaction between carbon, hydrogen, sulphur and oxygen.

C + O2 = CO2 2CO + O2 = 2CO 2H2 + O2 = 2H2O S + O2 = SO2 2S + 3O2 = 2SO3

Air consists of 77% Nitrogen and 23% Oxygen by mass. For a particular design of combustion air,repparttar 127642 theoritical oxygen multiplied by 100/23 will giverepparttar 127643 theoritical air required.

How do you measure a good combustion. The percentage of Oxygen or Carbon Dioxide will tell us whetherrepparttar 127644 combustion is good or not good.

The lowerrepparttar 127645 Oxygen content inrepparttar 127646 exhaust gas,repparttar 127647 betterrepparttar 127648 combustion. It means thatrepparttar 127649 Oxygen has been fully utilized for burning. It also means thatrepparttar 127650 fuel air ratio is set properly. Too much excess air is no good becauserepparttar 127651 heat generated will be lost throughrepparttar 127652 exhaust trunking.

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