DÜNDAR
Dündar CT 18.4H Hot Environment Radial Snail Fans (Three Phase) 120 Degrees 1100 m³ 1445 RPM
| Product Type | Voltage (V) | AC/DC | Frequency (Hz) | Power (W) | Speed (rpm) | Flow Rate (m³/h) | Weight (kg) |
|---|---|---|---|---|---|---|---|
| CT 18.4 H | 380 | AC | 50 | 190 | 1445 | 1100 | 11.5 |
| MODEL | C | D | E | H | L | O | P | S | T |
| CT 18.4H | 312 | 180 | 280 | 395 | 167 | 140 | 110 | 130 | 145 |
What is a Hot Environment Fan?
Dündar Hot Environment Fans are centrifugal fans specially designed to handle temperatures up to 120°C. They are used for ventilating and cooling the current environment.
Applications of Hot Environment Fans
- Exhausting hot air in areas with high air temperatures,
- Duct applications where axial fans are insufficient in terms of pressure and airflow,
- Solid-fuel heating systems like central heating boilers.
Fan Body and Impeller
- Enhanced heat resistance with an intermediate cooling impeller preventing heat transfer from the radial body to the motor, enabling hot air evacuation.
- High-quality radial body made of cold-rolled DKP steel.
- Corrosion resistance with eco-friendly electrostatic epoxy powder coating.
- Dynamically tested impeller for forward-curved radial fans, compliant with ISO 1940 standards.
- High-pressure and airflow values achieved with a nozzle application on the suction mouth.
- Robust and smooth body structure with a specially designed clamping system.
- Low noise levels for quieter operation.
Motor Specifications
- High-quality production using advanced CNC machines without manual interference.
- High heat conductivity with aluminum-finned motor housing.
- Insulation Class F for wide operating temperature ranges (-40°C to +70°C).
Key Factors to Consider in Fan Selection
When selecting a fan, four main parameters should be considered:
- Required airflow volume
- Pressure losses
- Acceptable noise level
- Electrical power connection type
The required air exchange for a space depends on the purpose of the environment, the number of people and objects within, and their activity levels. Below is a table of air exchange rates for various environments:
| Environment | Air Exchange Rate (times/hour) |
|---|---|
| Auditoriums | 6-8 |
| Paint Booths | 25-50 |
| Vault Rooms | 3-6 |
| Cinemas & Theaters | 5-8 |
| Commercial Kitchens | 15-30 |
| Foundries | 8-15 |
| Gymnasiums | 4-6 |
| Laundries | 10-20 |
| Indoor Pools | 3-4 |
| Restaurants | 8-12 |
| Conference Rooms | 6-8 |
| Waiting Rooms | 4-8 |
| Copy Rooms | 10-15 |
| Machine Rooms | 10-40 |
| Shops | 4-8 |
| Dry Cleaners | 5-15 |
| General Manufacturing Areas | 4-8 |
| Hospitals | 8-12 |
| Laboratories | 8-15 |
Airflow Requirements Based on Activity
| Activity Type | Airflow per Person (m³/hour) |
|---|---|
| Normal Activity (Non-Smoking) | 29 |
| Normal Activity (Smoking) | 58 |
| Light Activity | 45 |
| Heavy Activity (Industrial) | 60 |
The required airflow (Q) can be calculated as follows:
- Q [m³/hour] = Air Exchange Rate (per hour) × Room Volume (m³)
or - Q [m³/hour] = Number of People × Airflow per Person
Example Calculation
Consider an office with 5 people, a ceiling height of 2.6 meters, and a floor area of 50 m². The room volume is:
2.6 × 50 = 130 m³
From the air exchange table, the air exchange rate for an office is 4-8. Let’s take 5 as the rate:
130 × 5 = 650 m³/hour
For the people in the office, assuming normal activity:
5 people × 29 m³/hour = 145 m³/hour
The total airflow requirement would be:
650 + 145 = 795 m³/hour
Fan Selection and Installation
After determining the airflow, consider the following:
- Fan placement: Will the fan be mounted on the ceiling, wall, chimney, or ventilation duct?
- Electrical connection:
- For offices, fans are usually mounted on walls or windows. If domestic electricity is used, a single-phase (monophase) fan is preferred.
- For industrial applications, a three-phase (380 Volt) fan is recommended.
Similar Products
