Safety Features
All components are designed to keep safety as the first aspect of fan performance. Additional safety provisions are configured considering CE requirements.
| Features | Conventional Ceiling Fans / Wall Mounted Fans | HVLS Fans |
|---|---|---|
| Size | Maximum up to 36” (36 Inch) Diameter | 8 feet to 24 feet Diameter |
| Area Coverage | Need 100 No of Fans for 15000 Sq. feet Area | Need Only 1 Fan for 15000 Sq. feet Area |
| Power Consumption | 2.5 Watt / Sq. Feet Area | 0.1 Watt / Sq. Feet Area |
| Air Quality | Low Volume of Air at High Speed | High Volume of Air at Low Velocity |
| Comfort Feel | Gives Artificial feel | Gives Natural Breeze Air feel |
| Working Comfort | Person gets irritated after certain time | Person can stay / work for longer hours comfortably |
| Noise | Higher | Very Low |
| Maintenance | High | Low |
| Capital Cost | Low | High |
| Operating Cost | High | Low |
| Details | Value |
|---|---|
| Area | 15000 Square Feet |
| Working Hours | 20 Hours |
| Working Days / Month | 25 Days |
| Total Working Hours / Year | 20 × 25 × 12 = 6000 Hours |
| No. of Conventional Fans | 30 Nos |
| No. of HVLS Fans | 1 No |
| Total Cost (Conventional Fans) | 8000 × 30 = ₹2,40,000 |
| Total Cost (HVLS Fan) | ₹2,40,000 |
| Extra Initial Cost | ₹0 |
| Power Consumption (Conventional) | 0.300 KWH × 30 = 9 KWH |
| Power Consumption (HVLS) | 1.5 KWH |
| Power Saving / Hour | 9 - 1.5 = 7.5 KW |
| Saving / Hour (₹7 per unit) | 7.5 × 7 = ₹52.5 |
| Yearly Working Hours | 12 × 25 × 12 = 3600 Hours |
| Total Saving per Year | ₹52.5 × 3600 = ₹1,89,000 |
All components are designed to keep safety as the first aspect of fan performance. Additional safety provisions are configured considering CE requirements.
Is made from IS 2062 M.S. tested raw material and welded by certified welders. All fasteners are selected with additional factory safety and all nuts are Nyloc Nuts. SS wire rope is wrapped twice among roof and fan hanging structure for extra safety.
Blade mounting hub is single piece die-cast LM6 aluminium grade material. All hubs are radiography tested for checking internal cracks if any.
Motor and hub are coupled with fail-free couplings. Additional S clamps are provided to prevent fall out of hub in unlikely situations.
Blades are made from aluminium material with broad sections and two ribs for additional safety. Internal wire rope wrapping is provided to prevent fall out in case of blade breakage.
The High-volume Low-speed Fan is shortly known as an HVLS FANS. It is a Mechanical Fan that distributes a large amount of air at low rotational speed and its SIze is at least feet (2.1 m) or greater, hence the name high volume low speed. The fan smoothly mixes the layers of air to maintain a comfortable temperature without raising the heat. It is an effective cooling or heating solution for large spaces. This Fan is generally mounted on the ceiling although some are pole mounted.
Cooling a large premise is a very complicated process. Large ceiling fans are designed to move a high volume of air at low speed creating a blowing breeze environment on any premise. They are normally installed in Airports, Godowns, warehouses, shopping malls, Animal sheds, Hospitals, Schools, Dairy farms, Horse Stables, hangars, and more. The large ceiling fans are versatile, environmentally friendly, and cost-effective fans. They are very much suitable for industrial and commercial spaces. The Austar HVLS Fans are suitable for workshop or building that is bigger than 2500 Sq. Ft and the roof height more than 18ft. These fans also contribute to increasing the productivity of the workers.
Usually, there are air conditioners installed in the large premises to keep the place cool. The air conditioner keeps the place cool, while the HVLS fan keeps the people cool. The HVLS fans more temperature consistent. The fan does not directly heat or cool the air, but it can make the place more comfortable and the environment more pleasant.
Normally the cool air remains at the bottom on floor level and hot air remain at the top on ceiling level. In this way, air separates into layers and this Is called stratification. The industrial ceiling fan mixes the layers or air together and evaporative cooling happens. Ine ran blows a high volume of air toward the floor and then the air migrates outwards until it reaches a sidewall. As soon as the air reaches a side wall or any vertical surface, it turns upward and flows back towards the ceiling. In this way, air circulates in the room and the increased air circulation effectively removes hot humid air and replaces it with cool air.
The ceiling fan accelerates the evaporation of moisture of the body and creates a cooling effect. The fan increases the evaporative heat loss from the body and helps keep the skin cool. The evaporative effect also works to eliminate humidity from the air. The fan minimizes the dampness in the air and keeps the air dry, thus making the place more comfortable. The cool breeze flows throughout the premises and it gives a pleasant feeling to the occupants.
The hot air remains at the top and the cool air remains at the bottom. In wintertime, the occupants are left with cold air at the bottom and thus the temperature becomes uncomfortable for them. An HVLS fan by moving in the reverse direction mixes the hot air with the cool air and maintains a comfortable temperature without raising the heat.
The HVLS fans are normally needed in large places where people are working, seating, or standing for some activity. In large places where air movement is not available, the occupants feel suffocated, and here the need for this fan arises. These fans are originally designed for installation in large spaces such as factories, workshops, barns, hangars, animal sheds, and more.
The HVLS fans are very useful in industrial establishments and commercial establishments. In an Industrial establishment generally, HVAC systems are installed. The HVAC system cools the room, but it cannot give the feel of a cool breeze flowing around the room. Here the HVLS fan works to distribute the air uniformly on the premises. The people working there would feel a pleasant breeze on their skin and they would enjoy staying and working there. This can increase the productivity and efficiency of the workers.
industrial ceiling fans are very useful at the Commercial establishment. Several people come to visit in commercial establishments. There is air conditioning on the premises, but it does not give the feeling of a cool breeze. The customers might feel uneasy, and they would not stay longer. The industrial ceiling fan circulates the cool air and creates a flowing breeze environment; thus, customers would feel good and stay long and might purchase more as well.
Before HVLS fans got introduced in INDIA, most of the big industrial and commercial buildings were using either HVAC systems or conventional wall-mounted Air Circulating Fans.
Being Capital and Operation cost of the HVAC system at a higher nod, most of the users tend to use wall-mounted Air Circulator Fans. Wall-mounted Air Circulators also have their own challenges like High Noise level, Limited area coverage, Frequent Maintenance, Limited working life, etc.
Once HVLS fans got introduced, users got solutions to both of these two options HVAC and Wall Mounted Air Circulator Fans. Capital cost and Operation cost of HVLS Fan found very less than HVAC systems and Performance and comfort very high than Air Circulators.
In some the applications like Airports, HVLS Fans are used to reduce HVAC operation costs also.