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AIR CONDITIONING SYSTEM
OBJECTIVES
 COMPONENTS OF THE AIR CONDITIONING
SYSTEM
 PROCESS OF THE CYCLE OF AIR CONDITIONER
INTRODUCTION
Building Services is what make the building comes to its life.
• What makes the building work.
• Building sho...
IMPORTANT BUILDING SERVICES
• HVAC
• Electrical
• Fire Services
• Plumbing and Drainage
• Lift Services
• Security
• Telec...
WHY WE NEED AC ?
• Due to the various sources of heat the temperature
inside the room becomes very high and the relative
h...
Human beings
Electrical and electronic appliances
THE HEAT PRODUCES IN TWO WAYS
WHAT IS AIR CONDITIONING SYSTEM
Air conditioning is the process of removing heat from a
confined space, thus cooling the a...
ELEMENTS OF AIR
CONDITIONING SYSTEM
BASIC ELEMENTS OF AIR
CONDITIONING SYSTEM
Compressor
Condenser
Expansion Valve
Evaporator
COMPRESSOR
• Air conditioner compressor is used
to remove the heat-laden vapour
refrigerant from the evaporator of the
air...
COMPRESSOR
• There are basically 5 types of air conditioner compressor
that are commonly used in the HVAC industry:
1.Reci...
CONDENSER
In systems involving heat
transfer, a condenser is a
device or unit used to condense
a substance from its gaseou...
CONDENSER
• There are basically three types of condensing unit
depending on how the heat is removed by the
condensing medi...
EXPANSION VALVE
• The main purpose of this is removes pressure from the liquid
refrigerant to allow expansion or change of state from a li...
EVAPORATOR
• It is remove heat from air , water or other
substance.
• Refrigerant liquid is converted to gas,
absorbing he...
PROCESS OF AIR-CONDITIONING
MAINLY AIR CONDITIONER HAS 4 COMPONENTS.
– The compressor
– The condenser
– The expansion valve
– The evaporator
Apart fro...
BRIEFLY IDENTIFY THE PROCESS OF
EACH COMPONANTS
HOW REFRIGERANT GAS FLOW
THROUGH THE CYCLE
ACTUAL PROCESS OF THE AIR
CONDITIONING
TYPES OF AIR CONDITIONERS
TYPES OF AIR CONDITIONERS
• There are three types of air conditioners
• Room Air Conditioning system
» Split Air Condition...
ROOM AIR CONDITIONING SYSTEM
• Split Air Conditioning system
This is consisted with two parts,
 Indoor unit
 Outdoor uni...
ROOM AIR CONDITIONING SYSTEM CNT.
ROOM AIR CONDITIONING SYSTEM CNT.
 Window Air Conditioning system
This is the most common system for single rooms
ROOM AIR CONDITIONING UNIT CNT.
Split Air Conditioning system Vs. Window Air Conditioning system
Split Unit Window unit
Su...
PACKAGE AIR CONDITIONING SYSTEM
• Water cooled condenser
In this system condenser is cooled by water.Water has to be
suppl...
PACKAGE AIR CONDITIONING SYSTEM CNT.
Air cooled condenser
This system is called as air cooled
condenser because in this sy...
CENTRAL AIR CONDITIONING
SYSTEM
WHAT ARE THE TYPES OF CENTRAL AIR
CONDITIONER???
• Split-system unit
• Packaged unit
SPLIT-SYSTEM UNIT
• In many split-system air conditioners, this indoor cabinet
also contains a furnace or the indoor part ...
PACKAGED CENTRAL AIR CONDITIONER
• In a packaged central air conditioner, the evaporator, condenser,
and compressor are al...
CHILLED WATER CENTRAL AIR
CONDITIONING PLANTS
• The chilled water types of central air conditioning plants are
installed i...
CHILLED WATER CENTRAL AIR CONDITIONING
PLANTS
DIRECT EXPANSION (DX) TYPE OF CENTRAL
AIR CONDITIONING PLANT
• In the direct expansion or DX types of air central conditio...
THREE MAIN COMPARTMENTS OF THE DX TYPE OF
CENTRAL CONDITIONING SYSTEMS
• DX Central Air Conditioning Plant
• The Plant Roo...
CONCLUSION
QUESTION AND ANSWERS
Air conditioning system
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Air conditioning system

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Air conditioning system

  1. 1. AIR CONDITIONING SYSTEM
  2. 2. OBJECTIVES  COMPONENTS OF THE AIR CONDITIONING SYSTEM  PROCESS OF THE CYCLE OF AIR CONDITIONER
  3. 3. INTRODUCTION Building Services is what make the building comes to its life. • What makes the building work. • Building should be designed in such a way to provide an environment, where people can feel comfortable, work, live and achieve. • So everything inside a building which make it safe and comfortable, comes under the title of Building Services.
  4. 4. IMPORTANT BUILDING SERVICES • HVAC • Electrical • Fire Services • Plumbing and Drainage • Lift Services • Security • Telecommunication • Building Automation Systems
  5. 5. WHY WE NEED AC ? • Due to the various sources of heat the temperature inside the room becomes very high and the relative humidity can also be high. Further, there can also be less flow of air inside the room. All these factors lead to creation of highly uncomfortable conditions inside the room
  6. 6. Human beings Electrical and electronic appliances THE HEAT PRODUCES IN TWO WAYS
  7. 7. WHAT IS AIR CONDITIONING SYSTEM Air conditioning is the process of removing heat from a confined space, thus cooling the air, and removing humidity. Air conditioning can be used in both domestic and commercial environments. This process is used to achieve a more comfortable interior environment, typically for humans or animals, however, air conditioning is also used to cool/dehumidify rooms filled with heat- producing electronic devices, such as computer servers, power amplifiers, and even to display and store artwork.
  8. 8. ELEMENTS OF AIR CONDITIONING SYSTEM
  9. 9. BASIC ELEMENTS OF AIR CONDITIONING SYSTEM Compressor Condenser Expansion Valve Evaporator
  10. 10. COMPRESSOR • Air conditioner compressor is used to remove the heat-laden vapour refrigerant from the evaporator of the air conditioning systems.
  11. 11. COMPRESSOR • There are basically 5 types of air conditioner compressor that are commonly used in the HVAC industry: 1.Reciprocating 2.Scroll 3.Screw 4.Rotary 5.Centrifugal
  12. 12. CONDENSER In systems involving heat transfer, a condenser is a device or unit used to condense a substance from its gaseous to its liquid state, by cooling it
  13. 13. CONDENSER • There are basically three types of condensing unit depending on how the heat is removed by the condensing medium which is usually water, air or a combination of both. 1.Air-Cooled 2.Water-Cooled 3.Evaporative
  14. 14. EXPANSION VALVE
  15. 15. • The main purpose of this is removes pressure from the liquid refrigerant to allow expansion or change of state from a liquid to a vapor in the evaporator. • The high pressure refrigerant entering the expansion valve is quite warm. • The is mainly two types used in the air condition system 1. Internally equalized valve : most common. 2. Externally equalized valve : for special control.
  16. 16. EVAPORATOR • It is remove heat from air , water or other substance. • Refrigerant liquid is converted to gas, absorbing heat from the air in the compartment.
  17. 17. PROCESS OF AIR-CONDITIONING
  18. 18. MAINLY AIR CONDITIONER HAS 4 COMPONENTS. – The compressor – The condenser – The expansion valve – The evaporator Apart from these 4 components we have to consider about The copper refrigerant tube
  19. 19. BRIEFLY IDENTIFY THE PROCESS OF EACH COMPONANTS
  20. 20. HOW REFRIGERANT GAS FLOW THROUGH THE CYCLE
  21. 21. ACTUAL PROCESS OF THE AIR CONDITIONING
  22. 22. TYPES OF AIR CONDITIONERS
  23. 23. TYPES OF AIR CONDITIONERS • There are three types of air conditioners • Room Air Conditioning system » Split Air Conditioning system » Window Air Conditioning system • Package Air Conditioning system » Water cooled condenser » Air cooled condenser • Central Air Conditioning system » Direct expansion or DX central Air Conditioning plant » Chilled water central Air Conditioning plant
  24. 24. ROOM AIR CONDITIONING SYSTEM • Split Air Conditioning system This is consisted with two parts,  Indoor unit  Outdoor unit – Types of Split Air Conditioning system • Ceiling Mounted (Cassette Unit) • Floor Mounted • Duct type
  25. 25. ROOM AIR CONDITIONING SYSTEM CNT.
  26. 26. ROOM AIR CONDITIONING SYSTEM CNT.  Window Air Conditioning system This is the most common system for single rooms
  27. 27. ROOM AIR CONDITIONING UNIT CNT. Split Air Conditioning system Vs. Window Air Conditioning system Split Unit Window unit Suitable for small rooms with a window sill Suitable any room with or without a window Noise is relatively on the higher side Minimal noise Capacity range is 0.75 ton to 2 ton Capacity range 0.8 to 2 ton Ease of installation Need some effort in installation
  28. 28. PACKAGE AIR CONDITIONING SYSTEM • Water cooled condenser In this system condenser is cooled by water.Water has to be supplied continuously in these systems to maintain functioning of the air conditioning system. The water cooled condenser is used as a function to reject the heat that was absorbed by the refrigerant in the evaporator. Water which is used for the purpose is transferred to a drain line after using in the condenser.
  29. 29. PACKAGE AIR CONDITIONING SYSTEM CNT. Air cooled condenser This system is called as air cooled condenser because in this system atmospheric air is used for cooling the condenser.
  30. 30. CENTRAL AIR CONDITIONING SYSTEM
  31. 31. WHAT ARE THE TYPES OF CENTRAL AIR CONDITIONER??? • Split-system unit • Packaged unit
  32. 32. SPLIT-SYSTEM UNIT • In many split-system air conditioners, this indoor cabinet also contains a furnace or the indoor part of a heat pump. • The air conditioner's evaporator coil is installed in the cabinet or main supply duct of this furnace or heat pump. • If your home already has a furnace but no air conditioner, a split-system is the most economical central air conditioner to install.
  33. 33. PACKAGED CENTRAL AIR CONDITIONER • In a packaged central air conditioner, the evaporator, condenser, and compressor are all located in one cabinet, which usually is placed on a roof or on a concrete slab next to the house's foundation. • This type of air conditioner also is used in small commercial buildings.
  34. 34. CHILLED WATER CENTRAL AIR CONDITIONING PLANTS • The chilled water types of central air conditioning plants are installed in the place where whole large buildings, shopping mall, airport, hotel, etc. comprising of several floors are to be air conditioned • In chilled water plants, the ordinary water is chilled to very low temperatures of about 6 to 8 degree Celsius by the refrigeration plant
  35. 35. CHILLED WATER CENTRAL AIR CONDITIONING PLANTS
  36. 36. DIRECT EXPANSION (DX) TYPE OF CENTRAL AIR CONDITIONING PLANT • In the direct expansion or DX types of air central conditioning plants the air used for cooling space is directly chilled by the refrigerant in the cooling coil of the air handling unit. Since the air is cooled directly by the refrigerant the cooling efficiency of the DX plants is higher
  37. 37. THREE MAIN COMPARTMENTS OF THE DX TYPE OF CENTRAL CONDITIONING SYSTEMS • DX Central Air Conditioning Plant • The Plant Room • The Air Handling Unit Room • Air Conditioned Room
  38. 38. CONCLUSION
  39. 39. QUESTION AND ANSWERS

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