3. Introduction of Water
Water, a substance composed of the chemical
elements hydrogen and oxygen and existing in
gaseous, liquid, and solid states
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5. Types of water
1. Distilled water
2. Demineralized water
3. Boiler Feed
Water(BFW)
4. Service water
5. Chilled water
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6. 1. Distilled water
Distilled water is water that has had
many of its impurities
removed by distillation.
Distillation involves boiling the
water and then condensing the
steam into a clean container.
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7. Uses of Distilled water
Automobiles
Laboratory
Medical field
Soap Industry
Cosmetic Industry
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8. 2. Demineralised water
Demineralized water is specially
purified water that
has had most or all of its mineral
and salt ions removed.
It is also known as Deionized
water, DI or Demin water.
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9. Uses of Demineralised water
Wash water for computer chip
manufacture, and other microelectronics
Automotive uses
Pharmaceutical manufacturing
Cosmetics
Aquariums
Fire extinguishers
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10. 3. Boiler Feed Water(BFW)
Boiler feed water is an essential part
of boiler operations.
The general process is given as,
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11. Uses of Boiler Feed
Water(BFW)
Boiler water is treated to prevent corrosion and
scaling etc.
It is mainly used by the boilers to make the
steams of different pressures and
temperatures.
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12. 4. Service water
Service water is water that does not meet
drinking water quality standards.
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13. Uses of Service water
Depending on the application, the service
water must be treated according to the
requirements of it use, such as:
Industrial
Agricultural
Domestic
Service water reduces corrosion of equipment
and lessens overhead cost.
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14. 5. Chilled water
Chilled water is a commonly used to cool a
building's air and equipment.
The temperature of chilled water (between 4°
and 7°C (39-44 °F).
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15. Uses of chilled water
In industry, the water chillers is
the use of water cooling instead of air cooling.
Chilled water is used to cool and
dehumidify air at commercial and industrial
level
The chilled water absorbs the heat from the
building. It then returns to the chiller where the
chiller removes the heat from the water using
the refrigeration process. .
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