LOW ENERGY ARCHITECTURE IN THE TROPICS : FROM DESIGN TO BUILDING

CONTRUCTION

Third African conference Power and Energy Systems, 6-8 Septembre 2010, Gaborone, Bostwana

Harry BOYER, Frédéric MIRANVILLE, François PAYET Réunion Island University

PIMENT Laboratory 117 rue du général Ailleret

97430 Le Tampon Réunion Island – France

harry.boyer@univ-reunion.fr

Design stage

Third African conference Power and Energy Systems, 6-8 Septembre 2010, Gaborone, Bostwana

Désign sketch : initial drawing

Third African conference Power and Energy Systems, 6-8 Septembre 2010, Gaborone, Bostwana

Building orientation

Third African conference Power and Energy Systems, 6-8 Septembre 2010, Gaborone, Bostwana

Building orientation towards winds

Third African conference Power and Energy Systems, 6-8 Septembre 2010, Gaborone, Bostwana

Global view of the project

Third African conference Power and Energy Systems, 6-8 Septembre 2010, Gaborone, Bostwana

Some details on indoor space distribution

Third African conference Power and Energy Systems, 6-8 Septembre 2010, Gaborone, Bostwana

Solar protection of the roof

Third African conference Power and Energy Systems, 6-8 Septembre 2010, Gaborone, Bostwana

Overhangs for walls solar protection

Third African conference Power and Energy Systems, 6-8 Septembre 2010, Gaborone, Bostwana

Specific bioclimatic design : summer confort

Espaces tampons

Rooms on crawl space (garage)

Veranda for day use

Thermal protection par buffer space (corridor)

Vegetal solar protection

Third African conference Power and Energy Systems, 6-8 Septembre 2010, Gaborone, Bostwana

Specific bioclimatic design : tropical winter design

Confort d’hiver

Solar gains on North façades

Compromise summer confort – winter confort (270 m)

in a windy region

Third African conference Power and Energy Systems, 6-8 Septembre 2010, Gaborone, Bostwana

Ventilation and solar protection of windows

Third African conference Power and Energy Systems, 6-8 Septembre 2010, Gaborone, Bostwana

Natural ventilation : room part of the building

Porosity :

Room 1 North : 19% South : 19%Room 2 North : 31% Internal 20 %Room 3 North 31% Internal 20 %

1 2 3

Third African conference Power and Energy Systems, 6-8 Septembre 2010, Gaborone, Bostwana

Natural ventilation : daytime part of the building

POROSITY : 24 % North facade 26 % South facade

+ cross ventilation

Third African conference Power and Energy Systems, 6-8 Septembre 2010, Gaborone, Bostwana

CODYRUN et son application

Third African conference Power and Energy Systems, 6-8 Septembre 2010, Gaborone, Bostwana

Third African conference Power and Energy Systems, 6-8 Septembre 2010, Gaborone, Bostwana

Solar hot water supply

Conclusion

Third African conference Power and Energy Systems, 6-8 Septembre 2010, Gaborone, Bostwana