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Updated: May 24, 2025

Experimental System of Solar Adsorption Refrigeration with Concentrated Collector
Published on: October 18, 2017
Solar evaporator coupled with strong/weak convection and its cascade utilization
Zhengtong Li1, Jia-Han Zhang2, Jing Zhang3
1The National Key Laboratory of Water Disaster Prevention, Yangtze Institute for Conservation and Development, State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Hohai University, Nanjing 210098, China.
Abstract:
Modulating the macro/nanoarchitecture of evaporators to effectively harness diverse renewable energy sources is of paramount importance for optimizing the performance of solar-driven interfacial evaporation. Inspired by the geometric structure of a windmill, we designed an innovative solar evaporator that expertly harnesses both strong and weak convection. During the purification of heavy metal wastewater, the maximum evaporation rate can reach 4.95 kg m-2 h-1 under one sun irradiation by introducing an ultralow wind flow (0.1 m s-1), yielding an evaporation rate that is twice that of traditional evaporators. However, the gradual deposition of inorganic salt sediments on the evaporator surface is clearly observable. To address this issue, we present several innovative proof-of-concept cascade treatments that significantly extend the evaporator's operational lifespan. The innovative design and exceptional performance of this solar evaporator open avenues for advancements in sustainable water treatment, energy generation, and environmental remediation.
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