Ndaïdoura is the name of Envodev Chads new oven which in the local language of Laka means “Above the Limit”. Ndeïdura was fabricated to enhance the process of carbonization—an important stage in the production of eco-charcoal. The old model took approximately 46 minutes to produced 1kg of biochar (biochar is the product produced after biomass--rice or sesame stalk—is put through the process of carbonization or the technical term “pyrolysis”).
Envodev needed a way to increase the efficiency of their carbonization process, Ndaïdoura was the solution. Ndeïdura has the capacity to produce roughly 10.5kg of biochar in roughly two hours. This is a great achievement! The idea for the new oven was locally inspired by Envodev Chads Aquilas Dadje and Ghislain Rodoumbaye with assistance from Envodev Chad volunteers—Nathan Schmidt, Rodrigue Mbailassem, and Mahamat Youssouf. It was constructed by local welders at their workshop. It has a total volume of 1.36 meters cubed. The successful results of the new oven have been a great encouragement and victory for Envodev Chad.
In this photo the smoke that is being emitted carries away the humidity of the sesame biomass as well as harmful carcinogens. The process is being conducted outside of the city of Moundou where fewer people will be affected by the smoke. The chimney has been a recent addition which helps disperse the smoke further away from the oven so that it is safer and more comfortable for those performing the process of carbonization.
The oven has been taken to Envodev Chads community group in a village called Domane which is an hour outside Chads economic capital, Moundou. The community group will use it to repurpose field waste such as sesame stalk into a much needed environmentally friendly fuel source. In this photo the group is being trained how to properly use the larger oven. Ndaïdoura functions under the same principles as the old oven, however the time required and the amount of biomass converted with each cycle is different. The members understood the training very well and greatly appreciated the time together. We are optimistic and hopeful that Ndaïdoura will continue to advance the good work of Envodev Chad—supplying a sustainable fuel source for Chad.