%0 Journal Article %T Extended experimental investigation of a double-effect active solar still with a paraffin wax, in Owerri, Nigeria %A C. NWOSU, E. %A NSOFOR, K. %A N. NWAJI, G. %A ONONOGBO, C. %A OFONG, I. %A V. OGUEKE, N. %A E. ANYANWU, E. %J Journal of Thermal Engineering %D 2023 %V 9 %P 1189-1207 %R 10.18186/thermal.1374686