Increasing the productivity of pyramid solar still augmented with biomass heat source and analytical validation using RSM

A pyramid type solar still with 0.82 × 0.81 × 0.75 m has been fabricated with galvanized iron sheet and tried with different water depths of 2–4 cm integrated with biomass heat source. The tail of the basin was attached with a heat exchanger having 0.025 m diameter and 3.5 m length, and having five...

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