Air Cooled Screw Chiller

Shell and Tube Evaporator

2.3 Condenser

The condenser for air cooled screw chiller is equipped with efficient cross-seam fins and female threaded copper tubes for high heat exchange efficiency and good stability.Its function is to cool down the refrigerant steam released from the compressor into a liquid or gas-liquid mixture.

 
Aluminum fin+fan Condenser

2.4 Controller Panel
Tongwei chillers use Integrated PLC control system with human-computer interface and big LED touch screen panel.

PLC Controller Panel

3 .How I Can Choose The Right Air Cooled Screw Chiller?

There are four important chiller specifications you need consider when you choose a chiller for your application :the cooling capacity for chiller ,the voltage required for operation, the associated pump horsepower and flow rate (contact us for custom selection), refrigerant, and the evaporator type.

3.1 Calculate Right Cooling Capacity For Chillrs
One of the most frequently ask about how we can know the cooling capacity for chillers. Let’s see the below formula.

3.2 Power

Different countries and regions have different standards for industrial electricity, the common power supplies are 208-230V, 380-420V,440-480V,50Hz or 60Hz, 3phase.

Such in Philippines ,the power supply is 220V 60HZ 3PH , 380V 60HZ 3PH ,460V 60HZ 3PH;

in Singapore and Malaysia ,the power supply is 415V 50HZ 3PH;

in Mexico ,the power supply is 220V 60HZ 3PH;

In USA ,the power supply is 208V 60HZ 3PH;575V 60HZ 3PH;480V 60HZ 3PH and so on

3.3 Water Pump

When you decide the capacity/tonnage of the chiller, we will recommend you the suitable pump in KW,which standard water pump is about 2 bar .If you need more high water pressure , please us when you inquiry.

3.4 Refrigerant

R22, R407C, R404A, R134A are optional choices.

R22: good cooling effect, but R22 is considered a powerful greenhouse gas, so it’s forbidden in most countries.

R407C: a good replacement for R22, good cooling effect.

R404A: suitable for application that requires low temperature(below -10°c).

R134A: a non-flammable gas used primarily as a “high-temperature” refrigerant, suitable for air-cooled chiller working at a high ambient temperature above 50℃.

3.5 Evaporator Choose

Air cooled screw chiller generally uses one evaporators: just is shell and tube heat exchanger.(See Above 2.2)

Shell and tube type evaporator, which requires an additional water buffer tank to connect.

3.6 Buffer Water Tank Capacity Choose

Buffer tank’s capacity can be customized according to specific needs. It can buffer a larger heat load, store more chilled water .

304 Stainless Steel Water Tank 

4.What is the Difference Between Air Cooled Screw Chiller and an Water Cooled Screw Chiller

Air-cooled and water-cooled screw chillers are both types of chillers used for cooling applications in various industries.
The main difference between air cooled screw chiller and water cooled screw chiller is condenser :
The condenser of an Air-Cooled Screw Chiller is cooled by the ambient air,which the heat generated during the cooling process is dissipated into the surrounding air;
Water Cooled Screw Chiller with a shell and tube water-type condenser that is attached to a cooling tower and is typically used in medium and wide installations where water is available.So Water cooled screw chiller need connect with water cooling tower and water cooling pump outside , the installation is more trouble than air cooled screw chiller .
But if your ambient temperature is very high above 50℃,we suggest you use air cooled screw chiller ,as air cooled screw chiller may consume more energy to achieve the same cooling capacity due to the limitations of air as a heat exchange medium and water cooled screw chiller uses constant water source for more stable and efficient heat dissipation,so in high ambient temperature , water cooled screw chiller is more energy-efficient and better choice for your application .

Water Cooled Screw Chiller 

5.Industrial Applications of Air Cooled Screw Chiller

Air-cooled screw chillers are very popular refrigeration system that can provide steady and reliable water cooling sources for both industrial and commercial usage.
Air cooled screw chillers are also widely used in plastic industry.food industry and Cement/ Concrete Cooling.

5.1 Plastic Industry 

Air-cooled screw chillers are also widely used in plastic processing and plastic industry including plastic injection molding, plastic extruders, and extrusion lines, blowing molding machines.
The function of using an air-cooled screw chiller is to provide the cooling water flow rate for cooling the plastic mold temperature down to make sure the product quality and production efficiency.

Air Cooled Screw Chiller For Plastic Industry  

5.2 Food Industry 

Air cooled chiller chillers are important in the food industry to maintain temperature control, preserve quality, support various production processes, and comply with regulations.

Air Cooled Screw Chiller For Food Industry

5.3 Cement /Concrete Cooling

Cement production involves a series of chemical reactions that generate significant amounts of heat.Cement is usually mixed with water to from the material known as concrete whose temperature is to a great extent determined by the water used in the chemical combination of cement aggregates and water.