Air-con from plastic bot­tles

CityPress - - News - NAHELA NOWSHIN projects@city­

In Bangladesh, most of the pop­u­la­tion still re­sides in ru­ral ar­eas where ac­cess to elec­tric­ity is lim­ited. More than 70% of the coun­try’s cit­i­zens live in cor­ru­gated tin houses, which am­plify the sun’s heat. Dur­ing sum­mer, tem­per­a­tures can get as high as 45°C.

Grey Dhaka, the Bangladesh unit of US-based multi­na­tional ad­ver­tis­ing and mar­ket­ing agency Grey Group, has de­vel­oped an in­ge­nious way to tackle the swel­ter­ing con­di­tions for those liv­ing in im­pov­er­ished ar­eas in the coun­try.

The agency has in­tro­duced the Eco-Cooler, the world’s first “zero elec­tric­ity” air con­di­tioner.

Made out of re­pur­posed plastic bot­tles or cold drink cans, the Eco-Cooler is cost-ef­fec­tive, en­vi­ron­men­tally friendly and sim­ple to make.

Re­pur­posed plastic bot­tles are cut in half and mounted onto a board or a grid with the bot­tle­necks fac­ing the in­side of the house, and this board is then in­stalled onto a win­dow.

Hot air en­ters the open end of the bot­tle and is com­pressed at the neck of the bot­tle, turn­ing the air cooler be­fore it reaches the in­side of the house. The EcoCooler can re­duce the tem­per­a­ture by as much as 5°C.

In col­lab­o­ra­tion with Grameen In­tel So­cial Busi­ness, Grey Dhaka dis­trib­uted Eco-Cooler units for free in vil­lages across the coun­try.

To­day, more than 25 000 house­holds have an Eco-Cooler in their homes in Bangladesh.

The innovation has brought relief to thou­sands of peo­ple, whose lives are now a lit­tle more com­fort­able thanks to this sim­ple de­vice.


A BREATH OF FRESH AIR Cheap air-con units, de­vel­oped by Grey Dhaka us­ing bot­tles and cold drink cans, have been in­stalled in homes in Bangladesh

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