Air Curtain: An Effective Solution for Clean and Cool Spaces
Air curtains are becoming essential in modern buildings due to their energy-saving capabilities, dust protection, and ability to maintain indoor environments. Join Cong Nghe Loc Khi as we dive into the structure, working principle, benefits, and real-world applications of air curtains in this detailed guide!
1. What Is an Air Curtain?
An air curtain, also known as an air door, is a device that generates a high-velocity airflow horizontally or vertically, creating an "invisible air barrier" at entrances. Its key functions include:
- Separating indoor and outdoor temperatures.
- Blocking dust, insects, and odors from entering.
- Enhancing air conditioner efficiency and reducing energy costs.
2. How Do Air Curtains Work?
Air curtains operate through three simple steps:
- Air Intake: Air is drawn in through a filter grille or honeycomb mesh.
- Fan Operation: The motor spins the blades, producing a high-speed airflow.
- Air Barrier: The airflow forms a dynamic shield, preventing air stratification.
3. Key Benefits of Using Air Curtains
Installing an air curtain offers numerous advantages:
- Energy Savings: Reduces heat loss and optimizes air conditioning performance.
- Cleaner Spaces: Keeps out dust, bacteria, and insects effectively.
- No Door Needed: Maintains temperature separation without obstructing access.
- Modern Appeal: Adds professionalism and sophistication to any space.
4. Practical Applications of Air Curtains
Air curtains are widely used across various settings:
- Supermarkets & Malls: Ensures clean, comfortable shopping environments.
- Restaurants & Hotels: Maintains hygiene and guest satisfaction.
- Factories & Cold Storage: Protects production and storage conditions.
- Homes: Ideal for households near busy roads or dusty areas.
5. Air Velocity Standards by Door Height
For optimal performance, air curtain velocity should match door height:
| Door Height | Required Air Velocity | Application |
|---|
| Under 3m |
8 – 12 m/s |
Offices, Shops |
| 3 – 4m |
15 – 18 m/s |
Supermarkets, Restaurants |
| Over 4m |
≥ 20 m/s |
Cold Storage, Large Factories |
6. Technical Standards for Air Curtains
- ISO 27327-1:2009: Defines methods for measuring air curtain performance.
- ASHRAE Handbook – HVAC: Guides the use of air curtains as vestibule alternatives.
- Proven Efficiency: Tests show air curtains achieve 60–80% air-blocking effectiveness, delivering superior energy savings.
7. Common Types of Air Curtains
Air curtains come in various classifications:
- Airflow Direction: Horizontal or vertical.
- Motor Count: 1, 2, or 3 motors.
- Length Options: 0.9m, 1.2m, 1.5m, 1.8m.
- Blowing Height: Ranges from 2m to 5m.
8. Contact Us for Consultation and Quotes
Looking for the perfect air curtain solution? Reach out today:
BACH LONG PRODUCTION TRADING SERVICE CO., LTD
- Address: 75 Nguyen Hong Street, Ward 1, Go Vap District, Ho Chi Minh City
- Hotline: +84 93 143 54 54
- Email: info@congnghelockhi.vn
- Website: www.congnghelockhi.vn
