CO2 Concentration; Indoor Air; Buildings; Equatorial; Climate; Health
Abstract :
[en] Elevated CO2rateinabuildingaffectthehealthofoccupant. Thisdocumentpresentsresultsofanexperimentalanalysisconductedin50officeslocatedin12buildings withdifferent layerinCameroon(Yaounde). This study tookplacein2012,duringthedryandtherainyseasons.Themaingoalistoshowtheinfluenceofthebuildingstructure,theventilationandthenumberofoccupantsontheCO2concentrationinbuildings.Theareaschosen wereventilated at 60%.Materials and Methods:A questionnaire was distributed to occupants. The different valuesintermsoftemperature,airspeed,humidity,CO2concentrationandluminosityrateweremeasuredsimultaneouslyduringworkinghoursandwithouttheoccupants.Themeasurementtookplacewhileofficeswerenaturallyventilated.Valuesobtainedwereanalyzedandintegrated. Results:Paintedbuildingswithglassesweremorepollutantthanthosemadewithsoilandwood. A mechanicallycontrolledareawasmorecomfortablebutmorepollutantthananaturallyventilated area. Conclusion:TheCO2concentrationchangesexponentiallywhenthenumberofpeopleinahallincreasedespeciallywhentherearesmokers.Fortemperaturerangedfrom20.5°Cto28.8°CandtheCO2from350ppmto1450ppm,theaverageconsumptionofO2bypersonvaried between 0.0097cfm and 0.0162 cfm.
Disciplines :
Architecture
Author, co-author :
Kameni Nematchoua, Modeste ; Université de Liège - ULiège > Département ArGEnCo > Urbanisme et aménagement du territoire
Language :
English
Title :
Study of dioxide carbon concentration and indoor àir quality in some buildings in the equatorial region of Cameroon (Yaoundé)
