David, I. Shearlock, C. Sweet, D. Using Dry Ice in Your Cooler. Hawaiian Shaved Ice. Cube Ice vs. Block Ice. Eat By Date. Alfaro, D. How to Keep Your Cooler Cool.
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A simple example of evaporative cooling is sweating in humans. As sweat starts to evaporate, it extracts the extra heat absorbed in it from the skin in the form of gas thus resulting in a cooling effect.
In case of air cooler, warm yet fresh air from the environment passes through an evaporating media, cooling pads in this case through which water is moved with the help of a water pump.
The flowing water extracts the heat from the warm air and starts to evaporate leaving behind cool, fresh and moistened air which is thrown via a fan into the room. Many air coolers today come with dedicated trays for adding ice cubes which helps in chilling the water and thus resulting in fast and powerful cooling.
The best thing about using an air cooler is that you can keep the doors and windows partially open to ensure a constant circulation of fresh air. Energy Efficiency — An air cooler on an average consumes up to 10 times less energy than a conventional air conditioner thus promising a significant reduction in electricity bills for consumers.
Some air coolers today also come equipped with inverter technology which further reduces energy consumption. The added advantage is that the inverter air coolers make far lesser noise because of its Electronically Commutated Motor, thus making your working as well as attending a video call far easier and more pleasant. Environment friendly - Unlike ACs which use harmful chlorofluorocarbons CFC , air coolers use the natural process of evaporative cooling with zero carbon emission which makes them an eco-friendly option.
Quality of air — Air coolers circulate fresh air as they pull hot air from outside and then cool it down. In addition, the circulated air is filtered, moist and easy to breathe and it also keeps your skin hydrated. On the other hand, ACs circulate the same stale air present inside the room. Also, air coolers are extremely portable and can be moved around with the utmost ease.
When it comes to selecting an air cooler, you will be overwhelmed by the myriad of options available in the market in terms of sizes, shapes, capacities, designs and features. So, before you begin your search for an air cooler, it is important to first understand the different types of air coolers.
There are four main types of air coolers namely Desert air coolers, Personal air cooler, Tower air coolers and Window air coolers. Let us now take a look at these air cooler types in detail.
A perfect solution for dry climate regions, Desert air coolers are characterised by their large tank capacity, big blower or fan and powerful motor. These coolers are capable of cooling down large spaces with their superior air throw and delivery.
With tank capacity of up to litres, Desert air coolers can run for long hours to provide uninterrupted cooling. Large size does not mean they cannot be moved around, as most desert coolers nowadays come equipped with castor wheels.
Compact and highly portable, Personal air coolers are more of a personalised cooling solution meant for use in small spaces or in areas that do not need open cooling. In order to do this, you need to open windows in the room. You can experiment by adjusting the window a little to improve the amount of cooling.
Another effective way of increasing the cooling efficiency is by adding ice to the water in the tank. Many people have already tried it with their coolers. In fact, some coolers also come with dedicated ice compartments. Adding ice to the water makes the pads cooler, resulting in cool air passing through them. However, it is effective only when you are seated very close to the cooler. In the long run though, adding ice will not help decrease the temperature or the humidity in the room.
Adding too much ice can also cause the evaporation process to slow down, hampering the efficiency of the air cooler. This makes it important know, when to put ice in the cooler. It is important to get your air cooler checked before using it this summer. One of the first things you should do is clean the cooling pads. Think about it from a thermodynamics perspective:.
Generally all commercial coolers use the same method of insulation: foam between the inner and outer walls. Foam is a good insulator for two reasons. First, it is filled with gas bubbles; gases conduct heat less effectively than either liquids or solids, and trapping the gas in small bubbles prevents the gas from effectively transferring heat via convection.
Second, the polymer molecules that make up the walls of the bubbles are bonded fairly loosely; this limits the rate at which heat can be transferred from one molecule to another. Molecules in high heat-conducting materials like metal contain free-flowing electrons, which transfer heat more readily than their less mobile counterparts.
But not all foams are created equal! Closed-cell foam is dense and rigid, and most of the gas bubbles do not touch each other. Open-cell foam is more flexible and lighter-weight, but because most of the gas bubbles are in contact with each other, it's easier for heat to travel through it and is therefore less insulating. The two types of foam also hold different types of gas: Open-cell bubbles are often filled with water vapor, while closed-cell foams are filled with a variety of other chemicals with better insulating properties, such as pentane.
For decades, most insulating closed-cell foams were filled with CFCs; those were phased out after their impact on the ozone layer was discovered. Most current foam gases aren't quite as good for protecting cold meats, but they are significantly better for protecting the atmosphere!
Open-cell is the type of foam used in soft-sided lunch totes and the like, while hard-sided coolers generally contain closed-cell foam in their walls.
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