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Abhishek Mukherjee

Mohd. NaumanShamik Laskar

MINISTRY OF EARTH

SCIENCES building

CA

SE

STUDY

-HVAC

BUILDING SERVICES

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AIR

CONDITIONING

AIR COOLEDWATER COOLED

Air conditioning(often referred to as aircon, ACor A/C) is the

process of altering the

properties air (primarily temperature and humidity) to more favourable

conditions. More generally, air conditioning can refer to any form oftechnological cooling, heating, ventilation, or disinfection that modifies

the condition of air.

AIR COOLED Air cooled air conditioning system involves the flow of air

as a medium to bring regulate temperature of a space.

WATER COOLED Water cooled air conditioning system involves the

flow of water as a medium to bring regulate temperature of a space.

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Air conditioning (Air Cooled)

Room air conditioners come in two forms: unitary and packaged terminal (PTAC)

systems. Unitary systems, the common one room air conditioners, sit in a window

or wall opening, with interior controls. Interior air is cooled as a fan blows it over the

evaporator. On the exterior the air is heated as a second fan blows it over the

condenser. In this process, heat is drawn from the room and discharged to theenvironment. A large house or building may have several such units, permitting

Window A/C

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Flow Chart Diagram

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Flow

chartforcentrallyairconditionedplant

Coolingtower

Condensor

Compressor

evaporator

V

V

V

AHU

High temp high pressure coolant R-

22(gas)

HT, HP GAS

Water at normal temp pressure

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Flow

chartforcentrallyairconditionedplant

Coolingtower

Condensor

Compressor

evaporator

V

V

V

AHU

High temp high pressure coolant R-

22(gas)Water at normal temp pressure

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Flow

chartforcentrallyairconditionedplant

Cooling

tower

Condensor

Compressor

evaporator

V

V

V

AHU

High temp high pressure coolant R-

22(gas)Water at normal temp pressure

Water at low temp

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Flow

chartforcentrallyairconditionedplant

Cooling

tower

Condensor

Compressor

evaporator

V

V

V

AHU

High temp high pressure coolant R-

22(gas)Water at normal temp pressure

Water at low temp

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Flow

chartforcentrallyairconditionedplant

Cooling

tower

Condensor

Compressor

evaporator

V

V

V

AHU

High temp high pressure coolant R-

22(gas)Water at normal temp pressure

Water at low temp

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Flow

chartfor

centrallyairconditionedplant

Cooling

tower

Condensor

Compressor

evaporator

V

V

V

AHU

High temp high pressure coolant R-

22(gas)Water at normal temp pressure

Water at low temp

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Flow

chartfor

centrallyairconditionedplant

Cooling

tower

Condensor

Compressor

evaporator

V

V

V

AHU

Relatively high temp water

High pressure low

temp coolant

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Flow

chartfor

centrallyairconditionedplant

Cooling

tower

Condensor

Compressor

evaporator

V

V

V

AHU

Relatively high temp water

High pressure low

temp coolant

HP LT

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Flow

chartfor

centrallyairconditionedplant

Cooling

tower

Condensor

Compressor

evaporator

V

V

V

AHU

Relatively high temp water

High pressure low

temp coolant

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Flow

chartfor

centrallyaircon

ditionedplant

Cooling

tower

Condensor

Compressor

evaporator

V

V

V

AHU

Relatively high temp water

High pressure low

temp coolant

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Flow

chartfor

centrallyaircon

ditionedplant

Cooling

tower

Condensor

Compressor

evaporator

V

V

V

AHU

Relatively high temp water

High pressure low

temp coolant

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Flow

chartfor

centrallyaircon

ditionedplant

Cooling

tower

Condensor

Compressor

evaporator

V

V

V

AHU

Relatively high temp water

low pressure low temp

coolant

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Flow

chartfor

centrallyaircon

ditionedplant

Cooling

tower

Condensor

Compressor

evaporator

V

V

V

AHU

Relatively high temp water from AHU

low pressure low temp

coolant

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Flow

chartfor

centrallyaircon

ditionedplant

Cooling

tower

Condensor

Compressor

evaporator

V

V

V

AHU

Relatively high temp water from AHU

low pressure low temp

coolant

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Flow

chartfor

centrallyaircon

ditionedplant

Cooling

tower

Condensor

Compressor

evaporator

V

V

V

AHU

Relatively high temp water from AHU

low pressure low temp

coolant

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Flow

chartfor

centrallyaircon

ditionedplant

Cooling

tower

Condensor

Compressor

evaporator

V

V

V

AHU

Relatively high temp water from AHU

low pressure low temp

coolant

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Flow

chartfor

centrallyaircon

ditionedplant

Cooling

tower

Condensor

Compressor

evaporator

V

V

V

AHU

Relatively high temp water from AHU

low pressure low temp

coolant

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Flow

chartfor

centrallyaircon

ditionedplant

Cooling

tower

Condensor

Compressor

evaporator

V

V

V

AHU

Relatively high temp water from AHU

low pressure low temp

coolant

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Flow

chartfor

centrallyaircon

ditionedplant

Cooling

tower

Condensor

Compressor

evaporator

V

V

V

AHU

Relatively high temp water from AHU

low pressure low temp

coolant

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Flow

chartfor

centrallyaircon

ditionedplant

Cooling

tower

Condensor

Compressor

evaporator

V

V

V

AHU

High Temp Low pressure coolant

Chilled water

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Flow

chartfor

centrallyaircon

ditionedplant

Cooling

tower

Condensor

Compressor

evaporator

V

V

V

AHU

High Temp Low pressure coolant

Chilled water

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Flow

chartfor

centrallyaircon

ditionedplant

Cooling

tower

Condensor

Compressor

evaporator

V

V

V

AHU

High Temp Low pressure coolant

Chilled water

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Flow

chartfor

centrallyaircon

ditionedplant

Cooling

tower

Condensor

Compressor

evaporator

V

V

V

AHU

High Temp Low pressure coolant

Chilled water

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Control panel

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ondensor

CompressorVoltage control panel

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Cooling tower

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Pipes carrying relatively cool water

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Cooling tower Pressure check valve

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Chiller plants

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Insulated and non insulated

pipes

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AHU vents

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Temp controller

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Return vent