A new trapezoidal pyramid solar still design with multi thermal enhancers

•A new trapezoidal pyramid solar still design was proposed and investigated.•Multi thermal enhancers with low cost was provided and investigated.•The thermo-economic performance was tested compared a conventional still.•Maximum enhancement of 147.3 and 144.2% was achieved in production and efficiency.•Feasible freshwater production was achieved with 42.6% reduction in cost.