Evaporative Air Cooler Manufacturer.

Evaporative air coolers often used to cool Open Spaces in production workshops or warehouses.

Evaporative Air Cooler Manufacturer.

Evaporative Air Cooler Manufacturer.

What is evaporative air cooler?

An industrial evaporative air cooler (also called a swamp coolerdesert cooler) is a device that cools air through water evaporation, often used to cool Open Spaces in production workshops or warehouses. Evaporative cooling uses the fact that water absorbs heat in order to evaporate (that is, it has a large enthalpy of vaporization). The temperature of dry air can be dropped significantly through the phase transition of liquid water to water vapor (evaporation). This can cool air using much less energy than refrigeration. In extremely dry climates, evaporative cooling of air has the added benefit of humidifying and adding more moisture to space.

The cooling potential for evaporative cooling is dependent on the wet-bulb depression, the difference between dry-bulb temperature and wet-bulb temperature (see relative humidity). In arid climates, evaporative cooling can reduce energy consumption and total equipment for conditioning as an alternative to compressor-based cooling.

What is the basic working principle of air cooler?

Filtered and cooled by an evaporative air cooler, the fresh outdoor air is sent into the indoor space through the air duct and air supply outlets continuously. With the continuous supply of fresh air, the indoor space is in a positive pressure condition. Thus the original hot air containing odour and dust will be emitted out of the room, resulting in a fresh, ventilated, clean and comfortable environment. Suitable exhaust area and active exhaust are essential for satisfactory performance of any evaporative air cooling system.

 
 

Air Cooler Relative Humidity

This zone is not applicable as in reality when the temperature is relatively high, RH is predominantly lower than the supply air temperature.With the wind-chill effect, the effective temperature for thermal human comfort is 1~2℃ lower than the Supply Air Temperature.

 
 
Amb.
Temp
Relative Humidity
20% 30% 40% 50% 60% 70% 80% 90%
20 12 13 14.5 15.5 16.5 17.5 18.5 19.2
25 16 17 18.5 20 21 22 23 24
30 19.5 21 22.5 24 25 25 28 28.9
35 23 25 26.5 28.5 30 30 32.5 33.7
40 25.6 28.1 30.4 32.3 33.9
45 29.2 32 34.4
50 32.7 35.8

Air Cooler Model List

Model Voltage Frequency Max Airflow Working Current Power Consumption Physical Size (mm) AirOutlet (mm) Net Weight Water Tank Water Consumption Applicable Area
RTF-20A 380V/50Hz 20000m³/h 3.5A 1.1kW 1120*1120*1030 670*670 60KG 25L 60L/Day 100~150m²
RTF-20B 380V/50Hz 20000m³/h 3.5A 1.1kW 1120*1120*1030 670*670 57KG 35L 60L/Day 100~150m²
RTF-20C 380V/50Hz 20000m³/h 3.5A 1.1kW 1120*1120*1030 670*670 60KG 25L 60L/Day 100~150m²
Model Voltage Frequency Max Airflow Working Current Power Consumption Physical Size (mm) AirOutlet (mm) Net Weight Water Tank Water Consumption Applicable Area
RTF-25A 380V/50Hz 25000m³/h 4.5A 1.5kW 1120*1120*1300 670*670 79KG 25L 105L/Day 150~200m²
RTF-25B 380V/50Hz 25000m³/h 4.5A 1.5kW 1120*1120*1300 730*730 87KG 35L 105L/Day 150~200m²
RTF-25BL 380V/50Hz 25000m³/h 11.6A 5.5kW 1470*1470*1400 620*570 360KG 65L 110L/Day 200~250m²
Model Voltage Frequency Max Airflow Working Current Power Consumption Physical Size (mm) AirOutlet (mm) Net Weight Water Tank Water Consumption Applicable Area
RTF-30A 380V/50Hz 30000m³/h 5.6A 2.2kW 1470*1470*1350 800*800 175KG 65L 112L/Day 200~250m²
RTF-30B 380V/50Hz 30000m³/h 5.6A 2.2kW 1470*1470*1350 800*800 185KG 65L 112L/Day 200~250m²
RTF-30C 380V/50Hz 30000m³/h 5.6A 2.2kW 1470*1470*1380 800*800 188KG 65L 112L/Day 200~250m²
Model Voltage Frequency Max Airflow Working Current Power Consumption Physical Size (mm) AirOutlet (mm) Net Weight Water Tank Water Consumption Applicable Area
RTF-35B 380V/50Hz 35000m³/h 15.4A 7.5kW 1770*1770*1350 780*702 360KG 80L 110L/Day 200~250m²
RTF-36A 380V/50Hz 36000m³/h 6.5A 3.0kW 1470*1470*1350 800*800 175KG 65L 120L/Day 200~250m²
RTF-36B 380V/50Hz 36000m³/h 6.5A 2.2kW 1470*1490*1350 800*800 185KG 65L 120L/Day 200~250m²
RTF-36C 380V/50Hz 36000m³/h 6.5A 3.0kW 1470*1470*1380 800*800 185KG 65L 120L/Day 200~250m²
RTF-45B 380V/50Hz 45000m³/h 24.5A 11kW 2090*1970*1630 858*764 585KG 100L 260L/Day 200~300m²
Model RTF-20A
Voltage Frequency 380V/50Hz
Max Airflow 20000m³/h
Working Current 3.5A
Power Consumption 1.1KW
Physical Size 1120*1120*1030mm
Air Outlet 670*670mm
Net Weight 60KG
Water Tank 25L
Water Consumption 60L/Day
Applicable Area 100~150m²
Model RTF-25B
Voltage Frequency 380V/50Hz
Max Airflow 25000m³/h
Working Current 4.5A
Power Consumption 1.5KW
Physical Size 1120*1120*1300mm
Air Outlet 730*730mm
Net Weight 87KG
Water Tank 35L
Water Consumption 105L/Day
Applicable Area 150~200m²
Model RTF-30C
Voltage Frequency 380V/50Hz
Max Airflow 30000m³/h
Working Current 5.6A
Power Consumption 2.2KW
Physical Size 1470*1470*1380mm
Air Outlet 800*800mm
Net Weight 188KG
Water Tank 65L
Water Consumption 112L/Day
Applicable Area 200~250m²
Model RTF-36A
Voltage Frequency 380V/50Hz
Max Airflow 36000m³/h
Working Current 6.5A
Power Consumption 3.0KW
Physical Size 1470*1470*1350mm
Air Outlet 800*800mm
Net Weight 175KG
Water Tank 65L
Water Consumption 120L/Day
Applicable Area 200~250m²

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RTFANS Air Cooler Application Solutions

Air Cooler For Warehouse

Air Cooler For Factory

Air Cooler For Industrial

RTFANS Innovation Standard

bigger-airflow
Bigger Airflow
greater-wind-pressure
Greater Wind Pressure
lower-wind-resistance
Lower Wind Resistance
clean-automatically
Clean Automatically
international-appearance
International Appearance
  • High efficiency cooling pad
  • Innovative frequency conversion control design
  • Water spray resistance grille in streamline design
  • Multiple anti-blocking filter net
  • Motor with low failure and high temperature resistance
  • Simulation fluid dynamics design
  • Open soft pipe water distribution system
  • High quality and durable water pump
  • Automatic water replenishment design

RTFANS Air Cooler Advantage

Evaporative Air Cooler Low investment and high efficiency.
Evaporative Air Cooler Low power consumption, only 1 kWh per hour.
Evaporative Air Cooler Increase the oxygen content in the space and improve working efficiency.
Evaporative Air Cooler The cooling effect is strong and rapid.
Evaporative Air Cooler Wind a large amount of air distance and easy maintenance.
Evaporative Air Cooler Stable performance, reliable quality.
Evaporative Air Cooler Freely adjust air humidity.

Data for air exchange frequency in various places.

  • Air exchange frequency(times/h)=total air flow rate(m3/h) ÷ indoor space volume.
  • 20~30 times per hour for general environment;
  • 30~40 times per hour for crowded public place;
  • 40~50 times per hour for workshop with heating equipment;
  • 50~60 times per hour for workshop with high temperature and high air pollution;
  • Air exchange frequency can be increased in damp areas, and decreased in dry places.

The way to calculate the cooler quantity needed.

  • Cooler quantity needed = indoor space volume × air exchange frequency ÷ cooler air flow rate.
  • Spot cooling projects shall vary based on the actual situation.
  • The ducting system shall be matched with the air cooler model, and air outlet quantity shall be considered when designing.

Air Cooler Product Comparison

Cooling Equipment
Type Evaporative Air Cooler Air Conditioning Ventilation Fan
Capacity 18000m³/h 400000 BTU/h 40000m³/h
kW 1.1 54 1.1
Workspace Area(㎡) 1000 1000 1000
Effective Height(m) 4 4 4
Air Change Per Hour 30 Recirculating 30
Electrical Energy Consumed
@10hrs/days @26day/mth
Total Units Installed 10 2 8
Total KW Installed(kW) 11 108 8.8
Electrical Units Consumed

34320 KW/Y 336960 KW/Y 27456 KW/Y
Cost Comparison With

Reference to AC

10.1% 100% 8%
Effects Of Various Cooling Methods Pushes out hot, taste air and ventilates with Cool
Clean & Fresh Air.
Circulates air inside only It is ineffective in heat generating space. Only moves ambient air but offers no relief as temperature rises.
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