Dundar CM 16.2H Hot Environment Radial Snail Fan (Single Phase) 120 Degree 1500 m³ 2700 RPM

Ürün Tipi	V	AC/DC	Hz	W	rpm	m3/h	Ağırlık
CM 16.2 H	220	AC	50	550	2700	1500	9,8

 

 

MODEL	C	D	E	H	L	O	P	S	T
CM 16.2H	310	180	280	350	142	140	110	130	145

 

What is a Hot Environment Fan?

Dündar Hot Environment Fans are specially designed centrifugal fans capable of operating at temperatures up to 120°C. They are used for the ventilation and cooling of existing environments.

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Applications of Hot Environment Fans:

• Evacuation of hot air in areas with high air temperatures.
• Channel applications where the pressure and flow rates of axial fans are insufficient.
• Solid-fuel heating boilers.

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Fan Body and Blade Features:

• Ability to evacuate hotter air with an intermediate cooling blade that prevents heat transfer from the radial body to the motor.
• Radial body made of cold-drawn, high-quality DKP sheet metal.
• High resistance to corrosion with eco-friendly electrostatic epoxy powder coating.
• Dynamically balanced forward-curved radial blade tested to ISO 1940 standards.
• High-pressure and flow values achieved with the application of suction nozzle.
• Sturdy and smooth body structure with special seam body assembly.
• Low noise levels.

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Motor Features:

• High-quality production using advanced CNC machines without manual intervention.
• Aluminum-finned motor body with high thermal conductivity.
• Insulation class Class F, providing a wide operating range from -40°C to +70°C.

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Important Parameters in Fan Selection:

Four parameters must be considered when selecting a fan:

1. Required air flow rate.
2. Pressure losses.
3. Acceptable noise level.
4. Type of electrical power connection.

The air exchange needed for ventilation depends on the purpose of the area, the number of living beings and objects within, and their activities. The table below provides the necessary air exchange coefficients for different environments.

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Environment	Air Exchange Coefficient
Auditoriums	6-8
Paint Booths	25-50
Vault Rooms	3-6
Cinemas and 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	10-15
Photocopy Rooms	10-15
Machine Rooms	10-40
Shops	4-8
Dry Cleaning Facilities	5-15
General Manufacturing Areas	4-8
Hospitals	8-12
Laboratories	8-15

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Air flow rates per person by activity level:

• Normal activity (non-smoking): 29 m³/hour.
• Normal activity (smoking): 58 m³/hour.
• Light activity: 45 m³/hour.
• Heavy activity (industrial work areas): 60 m³/hour.

To determine the required air flow rate for a space:

$Q \, [m^3/hour] = \text{Air exchange coefficient (per hour)} \times \text{Room volume (m³)}$

or

$Q \, [m^3/hour] = \text{Number of people} \times \text{Required air flow per person}$

After determining the required air flow, suitable duct design should be performed (considering noise and air speed criteria), and pressure losses should be calculated. Depending on the operating environment, the type of fan (axial, radial, roof, smoke extraction, etc.) should be selected, and the appropriate fan curve should be chosen for the determined flow rate-pressure pair.

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Example:

For an office with 5 people, a ceiling height of 2.6 meters, and a floor area of 50 m²:

$\text{Volume} = 2.6 \times 50 = 130 \, m³$
Air exchange coefficient for an office is 4-8; let’s assume 5.

$130 \times 5 = 650 \, m³/hour$

If normal activity is assumed, the air requirement for workers is:

$5 \times 29 = 145 \, m³/hour$

Total air requirement:

$650 + 145 = 795 \, m³/hour$

Fan selection is made based on this air flow requirement.

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After calculating the flow rate, the fan's installation area should be determined. For example, will the fan be installed on the ceiling, wall, chimney, or ventilation pipe? Another point to consider is the voltage of the electricity connected to the fan. For office use, fans are typically wall-mounted or window-mounted. If household electricity is used, a single-phase fan should be chosen. For industrial use, a three-phase (380 Volt) fan is recommended.