Improving solar still performance with heat pipe/pulsating heat pipe evacuated tube solar …
Ref. Method of Enhancement Location Working-Fluid/PCM Type Results [38] Heat pipe Iran Ethanol Produced freshwater → 6.3 kg/m 2 day Thermal efficiency → 65 % [52] Heat pipe Iran Acetone Produced freshwater t → 6.55 kg/m 2 day Thermal efficiency → 50 % Produced freshwater of modified system (using PCM) → 86 %↑