TY - CHAP A1 - Kata, N'detigma A1 - Samah, Hodo-Abalo A1 - Tevi, Gabriel Jean-Philippe T1 - The contribution of solar energy to environmental protection and poverty reduction T2 - Conference Proceedings : 1st German-West African Conference on Sustainable, Renewable Energy Systems SusRes : 1st July 2020 - Kara, Togo N2 - The neighborhood population pressure one Djamdè reserve is investigated in this paper. After noting and observing changes in the microclimate of Djamdè, a survey was conducted. At the end of this survey, market gardening was proposed not only to remove the increased pressure on the reserve, but also to provide an income generating activity for this very vulnerable population. The collection of data on existing wells in the vicinity of the site shows that the availability of water for market gardening can be ensured by drilling. A comparative study between a pumping system with a petrol-powered pump and a photovoltaic system in the town of Kara has been carried out. The solar pumping system is by far the most interesting for Djamdè site. Considering the very high initial investment cost of the components of the solar pumping system, its size can be reduced by organizing and planning the watering of the crops. KW - renewable energy KW - environmental protection KW - solar pumping Y1 - 2020 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:526-opus4-13288 SP - 17 EP - 23 ER - TY - CHAP A1 - Samah, Hodo-Abalo A1 - Banna, Magolmèèna A1 - Zeghmati, Belkacem T1 - Vegetation insulation screen as a passive cooling system in hot humid climate: heat and mass exchanges T2 - Conference Proceedings : 1st German-West African Conference on Sustainable, Renewable Energy Systems SusRes : 1st July 2020 - Kara, Togo N2 - Planted roofs are passive cooling techniques that reduce the thermal load of buildings. In this paper, a dynamic mathematical model based on time average Navier-Stokes equations for a planted roof in hot humid climates has been developed for evaluating the cooling potential.Transfer equations are solved using a finite difference scheme and Thomas algorithm. The model was applied for the simulation of the planted roof in togolese climate conditions. Results showed that, evapotranspiration and Solar Heat gain Factor are functions of the Leaf Area Index which is the most important parameter when considering the foliage material. It is clearly proved that the foliage density and hence the vegetable canopy type selection greatly influence the thermal efficiency of the bioclimatic insulation screen. It was found that a larger Leaf Area Index reduces the solar flux penetration and increases evapotranspiration which is an important parameter when considering surrounding microclimate formation. KW - planted roof KW - sensible heat KW - latent heat KW - evapotranspiration KW - solar heat gains factor Y1 - 2020 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:526-opus4-13408 SP - 102 EP - 110 ER -