India's lattice buildings cool without air con
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Re: India's lattice buildings cool without air con
#2They also make it impossible to add air conditioning if I'm reading this right and can only really cool things down to the surrounding temperature (basically attempts to keep buildings from turning into greenhouses). Very cool but I don't see this being implemented anywhere where someone can afford AC
Re: India's lattice buildings cool without air con
#3They also make it impossible to add air conditioning if I'm reading this right and can only really cool things down to the surrounding temperature (basically attempts to keep buildings from turning into greenhouses). Very cool but I don't see this being implemented anywhere where someone can afford AC
From the article:
"Jaali’s cooling feature relies on the Venturi effect in a similar way to an air conditioning unit. 'When air passes through holes, it picks up velocity and penetrates afar. Due to the small apertures, air gets compressed and when released it gets cooler,' says Pandya."
Re: India's lattice buildings cool without air con
#4No post body was provided.
Re: India's lattice buildings cool without air con
#5They also make it impossible to add air conditioning if I'm reading this right and can only really cool things down to the surrounding temperature (basically attempts to keep buildings from turning into greenhouses). Very cool but I don't see this being implemented anywhere where someone can afford AC
Using an airconditioner and lattice structures/jaali are not mutually exclusive.
As an example, if you consider large buildings like hotels that have an open central courtyard, the open spaces could use the lattice structures for cooling/circulation while the rooms, banquet/conference halls and other closed spaces can use airconditioners.
Since the lattices offer passive cooling, they can lower the overall energy bill.
Re: India's lattice buildings cool without air con
#6They also make it impossible to add air conditioning if I'm reading this right and can only really cool things down to the surrounding temperature (basically attempts to keep buildings from turning into greenhouses). Very cool but I don't see this being implemented anywhere where someone can afford AC
Also from article, this technique has reduced AC required by ~30%.
Re: India's lattice buildings cool without air con
#7They also make it impossible to add air conditioning if I'm reading this right and can only really cool things down to the surrounding temperature (basically attempts to keep buildings from turning into greenhouses). Very cool but I don't see this being implemented anywhere where someone can afford AC
Using an airconditioner and lattice structures/jaali are not mutually exclusive. As an example, if you consider large buildings like hotels that have an open central courtyard, the open spaces could use the lattice structures for cooling/circulation while the rooms, banquet/conference halls and other closed spaces can use airconditioners. Since the lattices offer passive cooling, they can lower the overall energy bil…
Given the amount of traffic, street level noise, and air pollution in many Asian countries I don’t see this being implemented any time soon, in places where it matters.
Ceiling fans would also work really well, but similarly require openings in buildings. Now you only see them in traditional buildings (read: museums most often) because they were made with airflow in mind, before the age of AC.
People will prefer a hermetically sealed building because it’s the best escape from their own mess.
Re: India's lattice buildings cool without air con
#8They also make it impossible to add air conditioning if I'm reading this right and can only really cool things down to the surrounding temperature (basically attempts to keep buildings from turning into greenhouses). Very cool but I don't see this being implemented anywhere where someone can afford AC
So, everywhere apart from the top 5% of the world?
Re: India's lattice buildings cool without air con
#9Really interesting!
It reminds me of Majorcan shutters (in spanish persianas mallorquinas).
In Majorca/Minorca you cannot shut the windows when theres hot outside: humidity will make interiors as hot as the outside; but you can open the window while you have the shutter closed... and survive.
Probably in California there are some Majorcan shutters, too (Juniper Serra was from Majorca after all) ???
Re: India's lattice buildings cool without air con
#10Define "cool".
I dunno about the author, but for me "cool" means something like $temperature No amount of ventilation is going to keep a building "cool" like that when there's a 49C (120F) heat wave outside as the article says. Or even 35C, if there's any humidity involved.
A large temple with thick stone walls, on the other hand, could remain substantially cooler than its surroundings through a couple of weeks of unusual heat wave, because it has a large thermal mass. That's an architectural style that we might actually want to emulate. Increasing ventilation probably isn't going to help, though, in that case.