Critical assessment of water enthalpy characterization through dark environment evaporation.

ABSTRACT: Comparative evaporation rate testing in a dark environment, commonly used to characterize a reduced vaporization enthalpy in interfacial solar evaporators, requires the assumption of equal energy input between cases. However, this assumption is not generally valid, leading to misleading characterization results. Interfacial evaporators yield larger evaporation rates in dark conditions due to enlarged liquid-vapor surface areas, resulting in increased evaporative cooling and larger environmental temperature differentials. Theoretical and experimental evidence is provided, which shows that these temperature differences invalidate the equal energy input assumption. The results indicate that differences in evaporation rates correspond to energy input variations, without requiring enthalpy to b

SUBMITTER: Caratenuto A 

PROVIDER: S-EPMC11409960 | biostudies-literature | 2024 Sep

REPOSITORIES: biostudies-literature