An evaporative cooling medium and low-temperature screw chiller in a brewery cooling system is an industrial-grade refrigeration unit designed to efficiently maintain low temperatures during brewing processes—particularly for wort cooling, fermentation temperature control, and cold storage. Here’s a breakdown of its components and purpose:
What is a Screw Chiller?
A screw chiller uses a rotary screw compressor to compress refrigerant.
Known for high efficiency, quiet operation, and reliable continuous duty.
Ideal for medium to large breweries needing 24/7 cooling.
Evaporative Cooling Explained:
Evaporative condensers use water evaporation and airflow to cool the refrigerant.
Compared to air-cooled or water-cooled systems, evaporative cooling is: More energy-efficient. Offers better heat rejection, especially in hot climates. Reduces overall cooling water consumption.
Medium and Low-Temperature Range:
Medium-temperature chillers: Typically maintain temperatures around +5°C to +15°C—used for fermentation tanks.
Low-temperature chillers: Go down to -5°C to -10°C or lower—used for:
*Cold crashing.
*Glycol cooling loops.
*Cold storage of finished beer.
Specification of Evaporative cooling medium and low-temperature screw chiller:
| Item | Unit | Model | |
| TTZFCWZ690D | |||
| Cooling Capacity | kw | 712.4kw | |
| 104cal | 61.3 | ||
| Voltage | 3N/380V/50HZ | ||
| Powder | kw | 107.9*2 | |
| Compressor | タイプ | Semi-hermetic twin-screw compressor | |
| Q’ty | set | 2 | |
| starting mode | 25% Load＋Star-delta reduced-voltage start-up | ||
| Evaporator | タイプ | Shell and tube type | |
| Water Flow Rate | m³/h | 136.8 | |
| Water pressure drop | kPa | ≤100 | |
| Condensor | タイプ | Counter-flow full tube, hot-dip galvanized, high-efficiency variable frequency type | |
| Model | CEC-2000 | ||
| Q’ty | set | 1 | |
| Heat exhaust | kw | 2000 | |
| Fan power | kw | 7.5*2 | |
| Water pump power | kw | 4 | |
| Length | mm | 4000 | |
| Width | mm | 2700 | |
| Height | mm | 4990 | |
| Shipping Weight | Kg | 8500 | |
| Running Weight | Kg | 13200 | |
| refrigerant | 名称 | R407C | |
| Filling Weight | Kg | 820 | |
| Pipe Size | Condensor | 4-DN64 | |
| Evaporator | 2-DN200 | ||
| Size of main machine | Length | mm | 4200 |
| Width | mm | 1900 | |
| Height | mm | 2500 | |
| Weight | Net Weight | Kg | 5306 |
| Running Weight | Kg | 6155 | |
Note：Condenser temperature 36℃,
Inlet water temperature of the evaporator 0℃，outlet water temperature-5℃. The coolant is an aqueous solution of ethylene glycol
How it Fits in a Brewery:
Connects to glycol cooling lines that run through:
Fermenters (unitanks).
Bright beer tanks (BBTs).
Wort heat exchangers.
Provides precise control over fermentation and storage temperatures.
Advantages in a Brewery Setup:
High cooling capacity—suitable for large-volume or continuous production.
Energy-efficient due to evaporative design.
Reliable and low-maintenance compared to reciprocating compressors.
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