How Desert Air Coolers Keep Rooms Cool During North Indian Summers
A desert air cooler cools your room with the help of hot, dry air and water. Hot air goes through wet cooling pads. These pads evaporate the air, and during the evaporation process, it absorbs the heat from the air.
This enables the fan to push cooler air into the environment.
It makes the desert air cooler and works well in the dry North Indian summers. Since you are already getting dry air, it helps absorb water quickly. This results in better cooling.
Enumerate the exact reason that makes a desert cooler perform optimally in a dry summer.
The May or June period in North India becomes so dry and hot, especially in Jaipur or Delhi. The reason being the air not only feels hot but also dry on your face and hands.
Step outside for some time, and your lips start drying. Your skin feels rough. Your throat also starts asking for water.
This same dry air helps a cooler. A desert air cooler is dependent upon evaporation. When the dry air passes via wet pads, it catches moisture from those pads.
During this process, the heat is driven away from the air So the air coming out from the cooler feels cooler.
In humid weather, this does not happen so easily. The air already has moisture. It cannot take much more water. That is why coolers do not feel very strong in sticky weather. So, if your city has dry heat, a cooler has the right conditions to work.
- What is the working mechanism of an air cooler?
Several people make effective use of air coolers during the summer. However, they are still unaware of the working process of the machine. So here is the simple answer to how an air cooler works.
There is water in the tank. A pump lifts that water and sends it to the cooling pads. These pads become wet.
A fan pulls hot air via the wet pads. When air comes in contact with the wet surface, some water evaporates. This cools down the air. The cooler then sends that cool air into the room.
It is a simple process. No compressor. No gas. No closed-room cooling. Just air, water, cooling pads, and a fan.
You may have felt the same thing after washing your face in summer. For a few minutes, your face feels cooler. That happens because water is drying from your skin and taking away heat. A cooler makes use of the same idea; albeit on a large scale.
- How does a desert cooler work?
A desert cooler functions in the same way as a normal air cooler. However, it has been developed for stronger cooling.
It is usually bigger. It has a larger water tank. It has wider cooling pads. It also has a stronger fan. That is why people use a desert cooler for home cooling in bigger spaces.
Here is what happens inside it. Hot dry air enters the cooler from the back or sides.
The air passes through wet cooling pads. Water evaporates from the pads. The air loses heat. The fan throws this cooler air into the room. This keeps happening again and again while the cooler is running.
That is the reason a desert cooler can be useful for a large bedroom, hall, living room, shop, or home office.
A small air cooler for room use may be enough if the room is compact. But when the room is bigger and the heat is stronger, a desert cooler usually works better.
- What is the primary reason to keep a window open?
The biggest mistake that people make with the coolers is that they close the room fully and expect the cooler to work like an AC. But a cooler is not an AC.
An AC works best in a closed room. A cooler needs fresh air. It has to pull hot dry air, cool it through wet pads, and send it inside. The warm air already inside the room should also get a way to move out.
So keep one window or door slightly open. If possible, keep another small opening on the other side of the room. This helps air move properly.
When the room is fully closed, moisture keeps building up. After some time, the room may feel heavy or sticky. The cooler may still blow air, but it will not feel as fresh. With coolers, airflow is very important.
- Where should you place a desert cooler?
Place the cooler where it can get fresh air. Near a window is usually best. A balcony door can also work.
Some people keep it near an open passage or ventilated area. The back of the cooler should face the fresh air source. The front should face the room.
Do not keep it in the middle of a closed room. It will only move the same indoor air again and again. Also, avoid blocking the front side with a sofa, chair, curtain, or table. The air should move freely.
Sometimes the cooler is fine, but the placement is wrong. That is why even a good household air cooler may not cool properly. Before blaming the cooler, check where it is kept.
Is a desert cooler good for a large room?
Yes, a desert cooler is usually a good option for a large room, especially in dry heat.
It has a stronger air throw than many small coolers. It also comprises a bigger tank. This makes it operate for extended hours without needing frequent refilling.
Its perfect use is in a large bedroom, hall, study space, semi-open area, and living room. But size still matters.
A very small cooler will struggle in a large room. A very large cooler may not be needed in a small bedroom. So, choose according to your room.
If you only need cooling near your bed or study table, a small air cooler for room comfort may be fine. In case you wish the air to reach a wider space, a desert cooler is the apt choice.
Concluding Thoughts
To sum it up, the desert cooler in India cools a room with the help of evaporation. It pulls hot, dry air through wet cooling pads.
The evaporation process runs from the water through the pads and gets rid of the heat from the air. Next, the fan pushes cooler and fresher air into the room.
This way, it operates seamlessly in dry North Indian summers as dry air absorbs water swiftly.
If you want an even better cooling, keep the cooler in close proximity to fresh air, leave a window or door slightly open, make use of clean air, clean the tanks and pads, and select the right cooler size for your room.
When you use it appropriately, a desert air cooler can make your hot and dry summer days more comfy without using a lot of electricity when compared to an air conditioner.
