5 Reasons Why You Should Choose Sunwins Air Cooler

Sunwins Evaporative air coolers are cooling systems use only water and blower to circulate air. Here we listed the top 5 reasons why you should buy a super cooler:

1. Highest efficiency natural cooling by water evaporation

Super Cooler Evaporation Techniques
Nature’s most efficient means of cooling is through the evaporation of water. Evaporative cooling works on the principle of heat absorption by moisture evaporation. It also happens on human skin, the body sweat to cool temperature down.This process is same as you feel cooler when wind blowing from sea.

Super Cooler Technical
The evaporative air cooler produces effective cooling by combining the natural process water evaporation with a simple, reliable air moving system. Fresh outside air is filtered through the saturated evaporative media, cooled by evaporation, and circulated by a blower.

Evaporative Air cooler is one of longest history home appliance, even elder than air conditioner. It is called desert cooler in Middle East, and also is called swamp cooler in US.The frame of evaporative cooler is very simple. Water from bottom pan of the unit is pumped to the top and allowed to flow down over the evaporation cooling pad of the spot cooler, evenly saturating the pads, Then a powerful blower pulls air through the pads, forcing the water to evaporate which lowers the ambient temperature . The air cooler air air is then blown by the unit at a high velocity where you direct the cooler air to go.

Advantages of evaporative air cooling
a. Low carbon green product, environmentally friendly,no CFC’S, no damage to the Ozone layer
b. Super energy-saving, only cost 1/10 electricity than air conditioner
c. Less than 1/2 the price of air conditioning
d. Vent cooling, no air re-circulation

It is definitely perfect for outdoor cooling.

2. Higher quality standard
Water proof motor and water pump protection function against low water level.

3. Better accessories parts
Aluminum material cabinet motor, 100% copper wire, Long lifetime water pump, and high quality auto water inlet valve.

4. Unique designed float valve, available water pressure from 0 bar to 5.5 bar.
The latest super cooler comes with more functions, includes auto swing, remote control, auto timing off and etc. These make things easier to manage.

5. More clean air and therefore healthier
The machine comes with optional auto clean function, however you need to change water every several hours.


Advantages of Super Cooler

Super Cooler Spec 1Super Cooler Spec 2Super Cooler Spec 3


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5 Things You Never Know About HVLS Fan

If you want to provide a long lasting solution for the cooling and heating solution of your factory, HVLS fan (high volume low speed fan) should be considered. These fans help greatly in reducing and stabilizing work environment temperatures and therefore produce a corresponding productivity for the human resources in workplace.

If you are still in doubt about how powerful these fans, please keep on reading this article.

1. Do you know the effect of HVLS Fan on HVAC Systems in your industry?
A HVLS (high volume, low speed) fan helps to improve the productivity and functioning of HVAC systems. In hot seasons, it enables the free flow of air around the workplace and promotes cooling. It helps in redistributing hot air that flow into the ceiling to where they are needed in the factory. This is the main reason why it is widely used in places where there are no central cooling systems. HVLS fan is dynamic in action, that in cold season its fans run in reverse direction to disperse heat stocked up in the ceiling and so improve airflow in the cold seasons.

2. Reduction in energy cost.
It operates at low speeds; it utilizes a very little power compared to other type of industrial fans and air conditioning system. It can be powered with the amount of power needed to light up three light bulbs. It saves a lots energy.

3. Do you know HVLS (high volume low speed) fan move 11355 cubic meter of air in a minute?
You can’t compare this fan with your industrial fan or air conditioning system. It comes with blades shaped like airfoil that move air down from the ceiling to the floor and then circulate it to other areas before the air rises again and pushed down again. Heat is therefore circulated in cold seasons and cooling effect is better in hot periods.

4. HVLS fan reduces cooling costs.
It transports large amount of air to produce a cooling effect of 6 to 8 degrees cooler. And it moves air at 3 to 5 miles per hour. Even if you have cooling systems, they will not work at optimum rates because they won’t have much impact due to the cooling effect of the fan or air conditioning system.

5. Do you know HVLS (high volume low speed) fan much quitter then others fan?
Compared to others type of industrial fans or air conditioning system, HVLS fan is much more conducive for a quieter work environment. Commercial HVLS ceiling fans start off powerfully and smoothly and it continues to operate in quiet manner. Air conditioning system produces some noise when start and during air pushes through vents (at random). This creates a less desirable working environment. For other industrial fans, a higher speed of rpm will produces whining sound and causing pressure to the environment.

Interested to know more about technical specifications of HVLS Fans (Click This)?

How to Select the Best Blower for Your Factory

It is important to study the types of blower before select the suitable to use. Here we listed 2 types of blowers and required technical information:

Centrifugal Blower.

Centrifugal blowers use high speed impellers or blades to impart velocity to air or other gases. They can be single or multi-stage units. Like fans, centrifugal blowers offer a number of impeller orientations, including backward curved, forward curved, and radial. Blowers can be multi- or variable speed units. They are usually driven by electric motors, often through a belt but some centrifugal blowers are directly coupled to drive motors. Fan speed can be changed to vary flow rates by resizing sheaves, using variable speed drives.

Most standard centrifugal type blowers impart energy to incoming air by simply hurling it outward from a central point. And operate on a regenerative principle that provides much higher pressure and vacuum. In these devices, air enters through an inlet port and is accelerated by the impeller. Through centrifugal force, this air is thrown against the walls of casing where it is reflected back to the base of the impeller blades. The process is repeated many times during each revolution of impeller and constantly compounds the energy and acceleration imparted to incoming air. The overall effect is not unlike that obtained in multi-stage devices. However , in the case of the centrifugal blower, the increased output is due to many regenerative cycles that take place during each revolution of the impeller . To meet specific requirements, many combinations of these blowers are possible.

Positive Displacement Blower.

Positive Displacement blowers are similar in principle to positive displacement pumps in that they use mechanical means to squeeze fluid and thereby increase pressure and/or velocity. Centrifugal designs, on the other hand, impart velocity and pressure to media by flinging them outward with impellers. Among positive displacement blowers, the Roots, or rotary lobe, type is common, which uses two counter-rotating lobed rotors to move fluid through the blower. A cutaway blower shows one of the two rotors. A pair of symmetrical rotors rotates in opposite directions, by means of the rotors rotation. Air is captured from the inlet orifice. And in the meantime, the other parts of the rotor compress air and expel it through the outlet orifice. Totally 6 motions are taken place within the air chamber in one full revolution of rotors. Positive displacement blowers are often driven by electric motors .

Technical Information To Select A Blower.

To select a blower , the required data includes the flow rate (m3/min), static pressure , and air density.

Airflow is rated in cubic meter of air per minute (CMM) or in feet calculation, please use converter to CMM.

Example: If you are conveying material, you must have enough Air Volume (CMM) for the duct, pipe, hose size and the material will maintain the required velocity to carrying it completely through the system. Selecting the suitable air flow for the system can be very technically. It cannot be too low or too high that cause the clogging or blow out in the system. The right air flow can take the material conveying velocity into consideration for the material to move to another location that required.

Static Pressure is the resistance to air flow caused by air moving through a pipe, duct, hose, filter or air control systems. Static pressure is rated in Bar, mbar, PSI, mmAq or others. Please use converter.

The Total Static Pressure for the system must include static pressure of the total air flow moving through the entire system. Please calculate the pressure drop through all of the of ductwork on inlet and outlet of the blower , include filter , controller and others component that restrict air flow.

When a large amount of static pressure is on the inlet of a blower, it requires additional suction to move the air , That is because it is easier to blow air than suck air . This is called Rarefication.

Density changes resulting from temperature and/or barometric pressure variations, such as higher altitudes, must be corrected to standard conditions before selecting a fan or blower based on standard performance data.

Others factors – temperature of air ,altitude , mmbient temperature and safety conditions.

The temperature of the air going through the blower will affect the performance of the fan or blower.

The altitude the blower will be operating at will also affect the performance of the blower. The altitude should be given in feet above sea level.

The ambient temperature is the temperature of the air outside the blower. This can affect the operation of the motor and the fan bearings and/or belts for any belt driven fans blowers.

When a blower or fan will be moving air at temperatures substantially above 32 C, the safe operating speed of the blower impeller must be consideration .

Most metals characteristically weaker at higher temperatures. There are maximum operating temperature will listed in catalog for various blowers.

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