Nice gyan on desert coolers.
Hehe, there are professional players! Just that they focussed on the least effective forms of a cooler, the small ones that are mounted on a trolley and are used indoors!.......
Like I said, we can manage with our jugaad well enough, but sometimes I do wish we had a more professional player in this space.. ....
(They also offer 5 year warranties that seems pretty unheard of.)For every 100 square feet cooling area, allow 2 square feet of unrestricted air relief through windows or doors.
In fact their ducted models are the only ones using fans of size larger than 21".....
Maybe worth trying? If any Nagpur based BCMtians can share their experience that'd be nice. I am particularly interested in their ducted models, because they have cooling pads on all 4 sides, that seems like a good idea. any thoughts?
Hey, it's not trial and error, as far as I am concerned. Have been using coolers for decades now!... Until then it will be a trial and error process to see what works and what doesn't.
This seems like a pretty jumbo sized machine indeed! What do you do about it for the rest of the year when not under use?Avail from us Air Cooler ideal to be used in offices owing to its effectual cooling, noise free operation and urbane humidity control panel.
High Efficiency cellulose pad (900 mm x 900 mm x 200 mm)
24” Exhaust Fan 900 rpm
Suitable for cooling room area 800 sqft.
Low Electric consumption(550 Watt)
Excellent carton packing
Supplied with remote control units
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Dimensions : W x D x H : 36 x 32 x 46 (inches)
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Fully agree with you reg the fact that its possible to cool a bunch of rooms, although I haven't observed the U-turn effect (maybe because I have a lesser spec cooler). In my case all the contiguous rooms in a straight line get cooled. Nothing beats the cooler in summer (esp since the AC makes it even drier), plus the power savings are just incredible. I hope people in the non coastal regions come to their senses and use this more effectively. It drives me crazy to see all the heat islands and air conditioned malls that are sprouting all over, and apartment blocks stuffed with ACs.The interesting thing about cooling with desert coolers is that any and every room of a connected/contiguous house can be cooled effectively, without the need for rooms to be 'in line'.
These fans 'pressurize' the house; air can flow effectively even if there is a U-turn involved. All that is required is to control exit paths (doors or window openings) to distribute the air flowing through each room.
Having four cooling pads, as in top mounted fan boxes, offers larger cooling area (better cooling efficiency) and is an advantage. However, I have never felt the need for it.
The most important limiting factor for desert coolers is the relative humidity. The outlet temperature does not depend on the ambient temperature; it is determined by the RH only! Hard to believe? Well, that is how it is.
Once the RH crosses about 40% the efficiency of evaporative coolers drops off sharply. They become humidifiers, offering no appreciable cooling!
Ideally the RH should be 5 to 25%. Desert coolers put air conditioning plants to shame in such weather.