Valorisation of local and low-cost eco-materials have become an imperative for the sustainable development of Concentrating Solar Power (CSP) in West Africa. In these studies, the compatibility tests were carried out. These involve the application of jatropha curcas oil (JaCCO) and ceramic balls, which were developed from clay coal bottom ash and sands with a focus on Burkina dune sand ceramic. The aim was to assess the applicability of using JaCCO as heat transfer fluid in concentrated solar power plants with direct thermocline thermal energy storage. The tests involve the use of small container to put in contact with Jatropha oil with ceramic balls for 2160 hours and at 210 °C. From the chemical properties’ analysis, the peroxide value in the oil decrease with aging time while the acidity increase. However, the acidity remains below the limited value that is 25 mg KOH.g-1. Therefore, thermal properties that drive heat transfer (density, thermal conductivity, kinematic viscosity and so on) were not adjusted significantly at the storage temperature (of about 210°C). Thermal stability temperature decreased to 261.93°C for the oil aged alone as against 263.41 °C for the one that was put in contact with filler material. From the whole findings, it could be concluded that there is no incompatibility between JaCCO, and the new thermal energy storage material (TESM) developed. This couple of materials could be suitable for thermocline energy storage in CSP plant and for other application like there use in solar cooker box.

Compatibility studies, Thermal energy storage, Ceramic ball, Jatropha curcas crude oil, Concentrating solar power plant