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AIR CONDITIONING
SYSTEM
Group Members
1. P.P.L. Bandara 0286
2. P.L.L.L.S. Alwis 0310
3. A.J.M.K.S. Abeykoon 0224
4. B.M. Wickramage 0235
5. D.L.N.K. Vijemanna 0275
6. K.V.U.S. Gunathilaka 0281
7. H.H.P. Wickramasinghe 0283
8. K.G. Nanayakkara 0309
Content
1. Introduction
2. History
3. Types of Air-conditioning
4. Circuit Diagram
5. New Invented Technology
6. Advantages
7. Disadvantages
8. Conclusion
Introduction
Air conditioning is the process of
altering the properties of air to more
favorable condition.
The control of these conditions may
be desirable to maintain the health
and comfort of the occupants.
History
 In 1902, the first modern electrical air conditioning unit
was invented by Willis Carrier in Buffalo, New York.
 The first air conditioner, designed and built in Buffalo
Carrier, began working on 17 July 1902.
Type of Air-Conditioning
1.Window air-conditioning system
2.Spilt air-conditioning system
3.Central air-conditioning system
4.Package air-conditioning system
Window Air-Conditioning System
 Window air conditioners are one of the most commonly
used and cheapest type air conditioners.
 Window air-conditioner units are reliable and simple-to-
install solution to keep a room cool while avoiding the
costly construction of a central air system.
 To install one of these units, you need the space to make
a slot in the wall, and there should also be some open
space behind the wall.
 Better yet, when the summer heat dies down these units
can be easily removed for storage, and you can use the
window sill for other purpose.
Ac presentation full
Spilt Air-Conditioning System
 The spilt air conditioner comprises of two parts: the
outdoor unit and the indoor unit.
 The outdoor unit, fitted outside the room, houses
components like the compressor and expansion valve.
 The indoor unit comprises the evaporator or cooling coil
and the cooling fan. For this unit you don’t have to make
any slot in the wall of the room.
 Further, the present day spilt units have aesthetic looks
and add to the beauty of the room. The split air
conditioner can be used to cool one or to two rooms.
Ac presentation full
Central Air-Conditioning System
 The central air conditioning plants or the system
are used when large buildings, hotels, theaters,
airports, shopping malls are to be air conditioned
completely.
 The window and spilt air conditioners are used for
single rooms or small office spaces. Further, these
small units cannot satisfactorily cool the large
halls, auditoriums, receptions areas etc.
Ac presentation full
Package Air-Conditioning System
 The window and spilt air conditioners are usually up
to 5 tons.
 The packaged air conditioners are used for the
cooling capacities in between these two extremes.
 These units are used commonly in places like
restaurants, telephone exchanges, homes, small hall
etc.
Circuit Diagram
 Winter Air conditioning System
 Summer Air Conditioning System
Winter Air Conditioning System
 In winter air conditioning the air is heated which is
generally followed by humidification. The schematic
arrangement of the system is shown in figure.
Summer Air Conditioning System
 It is the most important type of air conditioning in which
the air is cooled ang generally dehumidified. The
schematic arrangement of a typical summer air
conditioning system is shown in figure.
New Invented Technology for
Air-Conditioning System
District cooling
system
Chilled beam
system
District Cooling System
The Objectives:
 The centralized production of chilled water
by using district cooling plant. The
generated chilled water will then be
channeled to various building blocks pre-
insulated seamless underground pipes.
Ac presentation full
Advantages
1. Improve energy efficiency
2. Protect environment
3. Save space
4. Improve urban view
5. Reduce manpower for operation and maintenance
How the system work?
 DC means the centralized production and distribution of
cooling energy. Chilled water is delivered via an
underground insulated pipeline to office, industrial and
residential buildings to cool the indoor air of the buildings
within a district.
 The output of one cooling plant is enough to meet the
cooling energy demand to dozens of buildings. DC can be
run on the electricity or natural gas, and can use either
regular water or seawater.
Why it is environmental friendly?
 District cooling helps the environment by increasing
energy efficiency and reducing environmental emissions
including air pollution, the greenhouse gas (GHG) carbon
dioxide(CO2) and ozone destroying refrigerants.
 District cooling can reduce annual CO2 emissions by about
1 ton for every ton of district cooling refrigeration
demand served.
DCS – Components
 Central Chiller Plant :- generate chilled water for
cooling purpose
 Distribution Network :- distribute chilled water to
building
 User Station :- interface own building air-
conditioning circuit
Chilled Beam System
 It is a type of convection HVAC system designed to
heat or cooled high rise building such as
commercial building.
 It is primarily gives off its cooling effect through
convection by using water to remove heat from a
room.
 Pipes of water passed through the beam
suspended short distance from the ceiling of a
room.
Ac presentation full
Advantages
 Quieter than air based HVAC system due to the
lack of moving parts and slower air velocities.
 Maintenance is also reduced due to the lack of
moving parts.
 High indoor air quality resulting from air
recirculated within the zone versus mixed air
from other zones.
 Lower energy consumption.
Disadvantages
Not well known in our industry
Higher construction cost
Main engineers are not familiar with
this technology
The Coolant
 Heat is removed from the cooling by coolant.
 Functions as a heat absorber from the evaporator.
 Good coolant must have ;
1. Non toxic
2. Not explosive
3. Non-corrosive components
 Not explosive
 Soluble in oil to lubricate effectively
 Have a high resistance to electricity
Type of coolant
Can you find where to used each
of this coolant
R-22
MONOKLORODIFLUOROMETANA
R-11
TRIKLOROMONOFLUROMETANA
R-12
DIKLORODIFLU
Applications
 Homes
 Restaurants
 Industry
 Offices
 College or University
 Telephone exchanges
 Auditoriums
 Reception areas
Conclusion
 Air condition system makes our life very
comfortable.
 We can protect hot or cold weather by air
conditioning system.
Ac presentation full

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Ac presentation full

  • 2. Group Members 1. P.P.L. Bandara 0286 2. P.L.L.L.S. Alwis 0310 3. A.J.M.K.S. Abeykoon 0224 4. B.M. Wickramage 0235 5. D.L.N.K. Vijemanna 0275 6. K.V.U.S. Gunathilaka 0281 7. H.H.P. Wickramasinghe 0283 8. K.G. Nanayakkara 0309
  • 3. Content 1. Introduction 2. History 3. Types of Air-conditioning 4. Circuit Diagram 5. New Invented Technology 6. Advantages 7. Disadvantages 8. Conclusion
  • 4. Introduction Air conditioning is the process of altering the properties of air to more favorable condition. The control of these conditions may be desirable to maintain the health and comfort of the occupants.
  • 5. History  In 1902, the first modern electrical air conditioning unit was invented by Willis Carrier in Buffalo, New York.  The first air conditioner, designed and built in Buffalo Carrier, began working on 17 July 1902.
  • 6. Type of Air-Conditioning 1.Window air-conditioning system 2.Spilt air-conditioning system 3.Central air-conditioning system 4.Package air-conditioning system
  • 7. Window Air-Conditioning System  Window air conditioners are one of the most commonly used and cheapest type air conditioners.  Window air-conditioner units are reliable and simple-to- install solution to keep a room cool while avoiding the costly construction of a central air system.
  • 8.  To install one of these units, you need the space to make a slot in the wall, and there should also be some open space behind the wall.  Better yet, when the summer heat dies down these units can be easily removed for storage, and you can use the window sill for other purpose.
  • 10. Spilt Air-Conditioning System  The spilt air conditioner comprises of two parts: the outdoor unit and the indoor unit.  The outdoor unit, fitted outside the room, houses components like the compressor and expansion valve.
  • 11.  The indoor unit comprises the evaporator or cooling coil and the cooling fan. For this unit you don’t have to make any slot in the wall of the room.  Further, the present day spilt units have aesthetic looks and add to the beauty of the room. The split air conditioner can be used to cool one or to two rooms.
  • 13. Central Air-Conditioning System  The central air conditioning plants or the system are used when large buildings, hotels, theaters, airports, shopping malls are to be air conditioned completely.  The window and spilt air conditioners are used for single rooms or small office spaces. Further, these small units cannot satisfactorily cool the large halls, auditoriums, receptions areas etc.
  • 15. Package Air-Conditioning System  The window and spilt air conditioners are usually up to 5 tons.  The packaged air conditioners are used for the cooling capacities in between these two extremes.  These units are used commonly in places like restaurants, telephone exchanges, homes, small hall etc.
  • 16. Circuit Diagram  Winter Air conditioning System  Summer Air Conditioning System
  • 17. Winter Air Conditioning System  In winter air conditioning the air is heated which is generally followed by humidification. The schematic arrangement of the system is shown in figure.
  • 18. Summer Air Conditioning System  It is the most important type of air conditioning in which the air is cooled ang generally dehumidified. The schematic arrangement of a typical summer air conditioning system is shown in figure.
  • 19. New Invented Technology for Air-Conditioning System District cooling system Chilled beam system
  • 20. District Cooling System The Objectives:  The centralized production of chilled water by using district cooling plant. The generated chilled water will then be channeled to various building blocks pre- insulated seamless underground pipes.
  • 22. Advantages 1. Improve energy efficiency 2. Protect environment 3. Save space 4. Improve urban view 5. Reduce manpower for operation and maintenance
  • 23. How the system work?  DC means the centralized production and distribution of cooling energy. Chilled water is delivered via an underground insulated pipeline to office, industrial and residential buildings to cool the indoor air of the buildings within a district.  The output of one cooling plant is enough to meet the cooling energy demand to dozens of buildings. DC can be run on the electricity or natural gas, and can use either regular water or seawater.
  • 24. Why it is environmental friendly?  District cooling helps the environment by increasing energy efficiency and reducing environmental emissions including air pollution, the greenhouse gas (GHG) carbon dioxide(CO2) and ozone destroying refrigerants.  District cooling can reduce annual CO2 emissions by about 1 ton for every ton of district cooling refrigeration demand served.
  • 25. DCS – Components  Central Chiller Plant :- generate chilled water for cooling purpose  Distribution Network :- distribute chilled water to building  User Station :- interface own building air- conditioning circuit
  • 26. Chilled Beam System  It is a type of convection HVAC system designed to heat or cooled high rise building such as commercial building.  It is primarily gives off its cooling effect through convection by using water to remove heat from a room.  Pipes of water passed through the beam suspended short distance from the ceiling of a room.
  • 28. Advantages  Quieter than air based HVAC system due to the lack of moving parts and slower air velocities.  Maintenance is also reduced due to the lack of moving parts.  High indoor air quality resulting from air recirculated within the zone versus mixed air from other zones.  Lower energy consumption.
  • 29. Disadvantages Not well known in our industry Higher construction cost Main engineers are not familiar with this technology
  • 30. The Coolant  Heat is removed from the cooling by coolant.  Functions as a heat absorber from the evaporator.  Good coolant must have ; 1. Non toxic 2. Not explosive 3. Non-corrosive components  Not explosive  Soluble in oil to lubricate effectively  Have a high resistance to electricity
  • 31. Type of coolant Can you find where to used each of this coolant R-22 MONOKLORODIFLUOROMETANA R-11 TRIKLOROMONOFLUROMETANA R-12 DIKLORODIFLU
  • 32. Applications  Homes  Restaurants  Industry  Offices  College or University  Telephone exchanges  Auditoriums  Reception areas
  • 33. Conclusion  Air condition system makes our life very comfortable.  We can protect hot or cold weather by air conditioning system.