Material | Mild Steel |
Compressor Type | Kirloskar Reciprocating |
Automation Grade | Automatic |
Evaporator | PHE or Shell & Tube |
Refrigerant Used | Ammonia R717 NH3 |
Plant Type | Chill Water Plant |
Water Flowing Rate | 15000 LPH + |
An Ammonia Chilled Water Plant using glycol or brine is a refrigeration system designed to cool water or maintain low temperatures for industrial processes. Here’s a breakdown of its components and operation:
Components:
1. Ammonia Compressor: Compresses ammonia gas, raising its temperature and pressure.
2. Condenser: Cools the high-pressure ammonia gas into a liquid by transferring heat to the surroundings.
3. Expansion Valve: Reduces the pressure of the liquid ammonia, causing it to evaporate.
4. Evaporator: Ammonia evaporates at low pressure, absorbing heat from the glycol or brine circulating through it.
5. Circulation Pump: Pumps chilled glycol or brine to the desired locations for cooling.
Operation:
1. Ammonia is compressed, condensed, expanded, and evaporated in a continuous cycle.
2. In the evaporator, ammonia absorbs heat from glycol or brine, which acts as a secondary refrigerant.
3. The chilled glycol or brine is circulated to cool water or maintain low temperatures in various processes.
Why Glycol or Brine?
• Glycol (ethylene or propylene): Used for medium to low temperatures (-10°C to -40°C) and prevents freezing.
• Brine (saltwater solutions): Effective for very low temperatures but more corrosive than glycol.
Applications:
• Cold storage warehouses
• Food processing industries
• Ice rinks
• Chemical and pharmaceutical plants
Would you like a detailed process flow diagram for better understanding?