Performance of a bi-layer solar steam generation system working at a high-temperature of top surface
| Autor: | Jinxin Zhong, Congliang Huang |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Surface (mathematics)
Work (thermodynamics) Materials science 020209 energy Nuclear engineering Evaporation Energy Engineering and Power Technology 02 engineering and technology 021001 nanoscience & nanotechnology Steam generation Finite element method Electricity generation Mass transfer 0202 electrical engineering electronic engineering information engineering 0210 nano-technology Porosity Physics::Atmospheric and Oceanic Physics |
| Zdroj: | Frontiers in Energy. 17:141-148 |
| ISSN: | 2095-1698 2095-1701 |
| DOI: | 10.1007/s11708-021-0725-4 |
| Popis: | Many efforts have been focused on enhancing the vapor generation in bi-layer solar steam generation systems for obtaining as much pure water as possible. However, the methods to enhance the vapor temperature is seldom studied although the high-temperature vapor has a wide use in medical sterilization and electricity generation. In this work, to probe the high-temperature vapor system, an improved macroscopic heat and mass transfer model was proposed. Then, using the finite element method to solve the model, the influences of some main factors on the evaporation efficiency and vapor temperature were discussed, including effects of the vapor transport conditions and the heat dissipation conditions. The results show that the high-temperature vapor could not be obtained by enhancing the heat-insulating property of the bi-layer systems but by applying the optimal porosity and proper absorbers. This paper is expected to provide some information for designing a bi-layered system to produce high-temperature vapor. |
| Databáze: | OpenAIRE |
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