Working Principle of Air Washer Unit

Keeping large spaces cool, clean, and comfortable is always a challenge, especially in industries and commercial areas where traditional air conditioning becomes expensive. This is where an Air Washer Unit comes in as a smart solution. Designed to cool the air using natural evaporative cooling, it sprays water into the incoming hot air, reducing temperature while also washing away dust and impurities. In this blog, we explain about the working principle of an Air Washer Unit and the factors that influence its price.

What is Air Washer

An Air Washer is a type of air conditioning and air cleaning system that helps in improving indoor air quality by washing the air with water. It removes dust, dirt, smoke, and other impurities from the air while also adding humidity.

  • Hot, dusty air is drawn inside the air washer.
  • The air passes through water-sprayed pads or nozzles.
  • Dust particles get trapped in water droplets.
  • The clean, cool, and humidified air is then circulated into the building.
working principle of air washer systems

The working principle of air washer systems involves the integration of air purification and humidification. These systems use a combination of filters, such as HEPA filters, to capture airborne particles like dust and allergens. Simultaneously, water is circulated through the unit, and air passes over wet surfaces, promoting the evaporation of water vapor into the air. This dual functionality not only removes particulate matter but also adds moisture to the indoor environment. The evaporative process helps in maintaining optimal humidity levels, addressing issues related to dry air. Some advanced air washer systems may also incorporate additional technologies like UV light or ionization for disinfection and odor removal. Overall, the working principle of air washer units aims to create a cleaner and more comfortable indoor atmosphere by simultaneously purifying and humidifying the air. Regular maintenance, including cleaning and water treatment, is essential for efficient and sustained operation.

Air Washer Diagram

Air Washer is an equipment used in HVAC systems to clean, cool, and humidify the air. It works on the principle of washing the air with water to remove dust, dirt, and other impurities. A diagram of air washer generally includes components such as a fan, water spray system, eliminators, filters, and a casing.

In the Air washer diagram, air enters the unit through the inlet section and passes through water spray nozzles or wetted pads. The dust particles and pollutants in the air get trapped in the water droplets, ensuring only clean air moves forward. After this, the mist eliminators remove excess moisture from the air before it is supplied to the ducting system. The fan then circulates this cooled and cleaned air throughout the required space.

Air washers not only clean the air but also help in maintaining humidity levels, making them highly suitable for industries like textiles, pharmaceuticals, and commercial buildings.

Air Washer

Air Washer Working Principle:

1. Evaporative Cooling Process

  • The air washer works on the principle of adiabatic cooling, where hot air comes in direct contact with water sprays or wetted surfaces.
  • As the water evaporates, it absorbs heat from the air, reducing the air temperature effectively without using refrigerants.

2. Air Filtration and Washing

  • When air passes through water sprays, suspended dust, dirt, and other impurities get trapped in water droplets.
  • This process makes the air cleaner, healthier, and free from many airborne contaminants.

3. Humidification of Air

  • Apart from cooling, the air washer also adds necessary moisture to the dry incoming air.
  • This helps maintain indoor air quality and prevents dryness in industrial environments, especially in textile and paper industries.

4. Continuous Water Circulation

  • Water used in spraying is collected in a sump at the bottom of the unit.
  • A circulation pump reuses this water after filtration, ensuring efficiency and less wastage.

5. Uniform Air Distribution

  • With the help of high-capacity blowers/fans, the conditioned (cooled, humidified, and cleaned) air is distributed evenly into the workspace.
  • This ensures proper ventilation and comfort in large areas.

6. Energy-Efficient Operation

  • Unlike conventional air conditioning, air washers do not use compressors or refrigerants.
  • They consume less power and provide natural cooling, making them cost-effective for large-scale applications.

7. Industrial Suitability

  • Air washer units are widely used in textile mills, food processing plants, foundries, and other industries where fresh, cool, and humidified air is required for processes as well as worker comfort.

Air Washer Price in India

Air washers are industrial machines, there are a lot of manufacturers which build air washer units. All the manufacturers have their own price range. We Refcon engineering – Leading Air Washer Manufacturer, offer air washers at cost efficient pricing with assurity of quality, durability and reliability. The price of an air washer depends on various factors including designs, models, sizes, capacity etc. We ensure that our price range always maintains that it is efficient and affordable for customers. We have a wide range of air washers as per the requirement of small to large scale industries.