Statistical analysis of indoor parameters an subjective responses of building occupants in a hot region of Indian ocean; a case of Madagascar island

Nematchoua, Modeste Kameni; Ricciardi, Paola; Buratti, Cinzia

doi:10.1016/j.apenergy.2017.08.207

Cited by 34 publications

(26 citation statements)

References 34 publications

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“…Energy demand increased to 19.6% between 1975 and 2000. These results are similar at those estimated by Christenson et al [41] , who showed that the heating degree-days were reduced by 11-18% during 1901-2003, but reached 1387% between 1975 and 2085. Some researchers showed that the extent of reduction in heating and increase in cooling varies from one region/climate to another and depends very much on the prevailing local weather conditions and energy efficiency measures [25][26][27] .…”

Section: Energy Demand Of Buildings 321 Time-scale Of the Past And supporting

confidence: 92%

“…Vulnerabilities of climate change varied according to geographic position. Nematchoua et al, in a study carried out in Cameroon, found rather that the maximum temperature tends to increase faster in the dry season than in the rainy season [41] . It's important to note that the consequences of this calamity are visible and vary from one country to another.…”

Section: Case Of Variation In the Annual Maximum Temperaturementioning

confidence: 93%

“…It allows to compare two groups (or two measures) and to easily take the best possible decision. Nowadays, this kind of test knew lot of success [39][40][41] . All the analysis were carried out with a 95% confidence level (CL), considering a level of significance equal to 5%.…”

Section: Model Validationmentioning

confidence: 99%

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A study of climate change and energy consumption in Madagascar island

Nematchoua

2019

Health Environ

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Climate change effect can be either positive or negative on the human. Its impact on the energy consumption of a country for space heating and cooling purposes depends on the current and future regional climate, the required thermal comfort inside buildings, and the technical building features such as thermal insulation quality and occupants' habits. The aim of this research is to study the variation of the air temperature in several regions of Madagascar and then to simulate the impact of climate change on the need for energy consumption in household cooling and heating systems using degree-day index. The results showed that the temperature changes more rapidly in the rainy season than in the dry season. The energy demand for cooling is constantly growing in all the regions of Madagascar. Besides, an average around of 526 degree-day is expected in several regions of island by 2050. In the same year, air temperature is estimated to reach up to 2 • C.

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Section: Energy Demand Of Buildings 321 Time-scale Of the Past And supporting

confidence: 92%

Section: Case Of Variation In the Annual Maximum Temperaturementioning

confidence: 93%

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A study of climate change and energy consumption in Madagascar island

Nematchoua

2019

Health Environ

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“…Thereafter, a differential analysis between residences was made. Such as, in several in-depth statistical types of research (Nematchoua et al,2017), the t-test was used in this part, all statisticalanalyseswere carried out with a 95% confidence level (CL), which was considered the level of significance equal to 5%. In both residences, a meticulous analysis of ten environmental impacts was applied at two-phases (construction and exploitation), as showed on table4.…”

Section: Figure8shows a Comparison Of Environmental Impacts From The mentioning

confidence: 99%

Statistical life cycle assessment of residential buildings in a temperate climate of northern part of Europe

Nematchoua

Teller

Reiter

2019

Journal of Cleaner Production

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Nowadays, with the new technology, the explosion of new products and the implementation of the new construction rules, it is important to evaluate the effect of the strong human pressure on nature. Thus, the analysis of the life cycle of a product (i.e., building) makes it possible to evaluate its main environmental impacts (energy demand, greenhouse gas emissions, product waste, water consumption, etc.) from raw materials manufacturing to its end of life (demolition).The purpose of this research is to carryout a meticulous statistical analysis aimed to better understand and to discern better the impact of sustainable buildings and old buildings on the environment. In addition, this research identifies the main elements that affect the environment during the construction, operation, renovation, and demolition of buildings.59 residences were analyzed (29 durable residences and 30 old residences), distributed in two districts of the Liege city. Several software tools were used(IBM SPSS statistical, ALCYONE, COMFIE-PLEIADES, and nova-EQUER) to statistically evaluate the 12 environmental impacts considered in this study .The results showed that the impacts of sustainable buildings and old buildings on the environment are very significant. Despite that, it is difficult to identify a clear difference between the environmentalimpact from old and sustainable buildings .The total lifecycle greenhouse gas(LCGHG) and energy of the whole the residential buildings represents 17.225 ktCO 2 -e and 362.8TJ, respectively, over 100 years. The building operation phase (or use phase) consume significant amount of life cycle energy (from 81.0 to 94.3%), but also, the largest contribution to the life cycle greenhouse gas (between 75.6% and 91.3%).

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“…To calibrate this model, we compared the different simulated and measured values of a building typically encountered in Madagascar [23], by calculating the linear correlation coefficient (R 2 ) to analyze the margin of error. The literature shows that the error is negligible if the correlation coefficient obtained is around of ±1.…”

Section: Calibration Of Modelmentioning

confidence: 99%

Net Zero Energy Buildings and Low Carbon Emission, a Case of Study of Madagascar Island

Nematchoua¹,

Reiter²

2020

Zero-Energy Buildings - New Approaches and Technologies

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The buildings respecting the concept "Net Zero energy" are becoming more and more flowering in the world these last years. The main goal of this research is to evaluate the different possibilities of implementation of buildings with Net zero energy and low environmental impacts in Sub-Saharan Africa. The proposed building is 80% made of local materials with low carbon emissions and especially at lower cost. The optimization and modeling of the building is carried out by the Design Builder software, which is a world-renowned software in the field of optimization of comfort, cost, carbon reduction, etc. By fixing the insulation thickness up to 11 cm, cooling and heating energy are found equal to zero during the different operating seasons in this residential building. The results show that the optimal solution to consider a net zero energy building in Antananarivo city requires an additional expense estimated at 40% of the cost of buildings more conventional encountered in the island. This will save $475 each year starting in 2030, with 99% reduction in the CO 2 release. The choice of local materials with low conductivity, low emissions, and low cost, has a significant impact on the implementation of a sustainable building, and more adapted to climate change concept.

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Statistical analysis of indoor parameters an subjective responses of building occupants in a hot region of Indian ocean; a case of Madagascar island

Cited by 34 publications

References 34 publications

A study of climate change and energy consumption in Madagascar island

A study of climate change and energy consumption in Madagascar island

Statistical life cycle assessment of residential buildings in a temperate climate of northern part of Europe

Net Zero Energy Buildings and Low Carbon Emission, a Case of Study of Madagascar Island

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