Technico – economic study of an indirect solar dryer for Drying Cocoa Beans in Madagascar

摘要

In this paper, the authors discuss the technical and economic feasibility of using an indirectsolar dryer for drying cocoa beans after fermentation in the northern region of Madagascar after five years.Ambient air is sucked in by a fan and through a resistance installed at the sensor inlet to raise its temperature incase of insufficient heat from the sun inside the chamber. The circulation of hot air is one-dimensional, constantspeed and ensured by a second fan placed at the entrance of the room. The purpose of our study is to acceleratethe drying technique to improve the quality of the dried products until the moisture content reaches 8%. On theother hand, we present the variation of the solar power received by the absorber used during the drying of a daysunshine as well as the advantage procured using this apparatus in the face of the exploitation of others. typesof energies Result is profitable, the investment is achievable because the net present value is positive at thediscount rate of 15% used as an indicator of financial profitability.