Docstoc

AIR CONDITION PPT

Document Sample
AIR CONDITION PPT Powered By Docstoc
					High pressure liquid & warm temperature

Low pressure liquid /vapour & low temperature

Chiller

Low pressure vapour & low temperature

Thermal Expansion value

Receiver
Liquid line

Suction line

Low pressure vapour & low temperature

Chilled water inlet

Chilled water outlet

Compressor
Chiller refrigerant circuit
Discharge
line
High pressure vapour & high temperature

High pressure liquid & Warm temperature

Condenser

Chiller circuit

Make up water tank Chiller # 1
Chilled water outlet

Stand by

Stand by

Stand by

Chilled water inlet Chiller # 2 Chilled water outlet
Primary pump Secondary pump

2
Chilled water inlet Chiller # 3 Chilled water outlet

3 3
Chilled water inlet

Bypass valve

AHU

Chiller plant

Supply Air

Fresh air supply

Chilled water inlet

Return Air
Drain pipe

Bypass valve
motor

blower

Chilled water outlet

AHU circuit

Chiller refrigeration cycle
• Description of a basic chiller refrigeration system: Starting at the compressor; the refrigerant is compressed and sent out of the compressor as a high temperature, high pressure, superheated gas. The refrigerant travels to the condenser (Which can be air cooled by fans or water cooled by tower). The condenser changes the refrigerant from a high temperature gas to a warm temperature liquid. It then travels into a receiver (optional component). It continues to the Thermal Expansion valve or TXV. The TXV meters the proper amount of refrigerant into the evaporator. The TXV takes the high pressure liquid and changes it to a low pressure cold saturated gas. This saturated gas enters the evaporator where it is changed to a cool dry gas (no liquid present). The cool "dry" gas then re-enters the compressor to be pressurized again.....


				
DOCUMENT INFO
Shared By:
Categories:
Tags: WORK, CHILLERS
Stats:
views:4084
posted:9/8/2009
language:English
pages:4
Description: Chiller & AHU working