Performance of a bi-layer solar steam generation system working at a high-temperature of top surface

Abstract

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.

Key words： solar steam generation; solar energy; numerical method; porous material

Acknowledgments

This work was supported by the Fundamental Research Funds for the Central Universities (No. 2019ZDPY06).

References

1 Liu Y, Yu S, Feng R, A bioinspired, reusable, paper-based system for high-performance large-scale evaporation. Advanced Materials, 2015, 27(17): 2768–2774

2 Shannon M A, Bohn P W, Elimelech M, Science and technology for water purification in the coming decades. Nature, 2008, 452(7185): 301–310

3 Cartlidge E. Saving for a rainy day. Science, 2011, 334(6058): 922–924

4 Wang F, Ma L, Cheng Z, Radiative heat transfer in solar thermochemical particle reactor: a comprehensive review. Renewable & Sustainable Energy Reviews, 2017, 73: 935–949

5 Wei G, Huang P, Xu C, Experimental study on the radiative properties of open-cell porous ceramics. Solar Energy, 2017, 149: 13–19

6 Tan J, Xie Y, Wang F, Investigation of optical properties and radiative transfer of TiO₂ nanofluids with the consideration of scattering effects. International Journal of Heat and Mass Transfer, 2017, 115: 1103–1112

7 Zhong J, Huang C. Crowding effects of nanoparticles on energy absorption in solar absorption coatings. Journal of Applied Physics, 2019, 125(3): 033103

8 Sharshir S W, Peng G, Wu L, The effects of flake graphite nanoparticles, phase change material, and film cooling on the solar still performance. Applied Energy, 2017, 191: 358–366

9 Zhong J, Huang C. Electromagnetic field decomposition model for understanding solar energy absorption in multi-nanoparticle systems. Journal of Quantitative Spectroscopy & Radiative Transfer, 2019, 236: 106588

10 Wang Y, Sun D, Li Y, Migration behaviors of leaky dielectric droplets with electric and hydrodynamic forces. Physical Review E, 2019, 100(3): 033113

11 Li L, Li Y, Sun J. Prospective fully-coupled multi-level analytical methodology for concentrated solar power plants: applications. Applied Thermal Engineering, 2017, 118: 159–170

12 Xiao K, Chen L, Chen R, Artificial light-driven ion pump for photoelectric energy conversion. Nature Communications, 2019, 10(1): 74

13 Zhao F, Zhou X, Shi Y, Highly efficient solar vapour generation via hierarchically nanostructured gels. Nature Nanotechnology, 2018, 13(6): 489–495

14 Ni G, Zandavi S H, Javid S M, A salt-rejecting floating solar still for low-cost desalination. Energy & Environmental Science, 2018, 11(6): 1510–1519

15 Luo X, Huang C, Liu S, High performance of carbon-particle/bulk-wood bi-layer system for solar steam generation. International Journal of Energy Research, 2018, 42(15): 4830–4839

16 Cooper T A, Zandavi S H, Ni G W, Contactless steam generation and superheating under one sun illumination. Nature Communications, 2018, 9(1): 5086

17 Ni G, Li G, Boriskina S V, Steam generation under one sun enabled by a floating structure with thermal concentration. Nature Energy, 2016, 1(9): 16126

18 Zhou L, Tan Y, Wang J, 3D self-assembly of aluminium nanoparticles for plasmon-enhanced solar desalination. Nature Photonics, 2016, 10(6): 393–398

19 Mehr A S, Gandiglio M, MosayebNezhad M, Solar-assisted integrated biogas solid oxide fuel cell (SOFC) installation in wastewater treatment plant: energy and economic analysis. Applied Energy, 2017, 191: 620–638

20 Abraham J P, Plourde B, Minkowycz W J. Continuous flow solar thermal pasteurization of drinking water: methods, devices, microbiology, and analysis. Renewable Energy, 2015, 81: 795–803

21 Xue G, Xu Y, Ding T, Water-evaporation-induced electricity with nanostructured carbon materials. Nature Nanotechnology, 2017, 12(4): 317–321

22 Li X, Lin R, Ni G, Three-dimensional artificial transpiration for efficient solar waste-water treatment. National Science Review, 2018, 5(1): 70–77

23 Zhong J, Huang C. Thermal-driven ion transport in porous materials for thermoelectricity applications. Langmuir, 2020, 36(6): 1418–1422

24 Zhong J, Huang C. Influence factors of thermal driven ion transport in nano-channel for thermoelectricity application. International Journal of Heat and Mass Transfer, 2020, 152: 119501

25 Ghasemi H, Ni G, Marconnet A M, Solar steam generation by heat localization. Nature Communications, 2014, 5(1): 4449

26 Li H, He Y, Hu Y, Commercially available activated carbon fiber felt enables efficient solar steam generation. ACS Applied Materials & Interfaces, 2018, 10(11): 9362–9368

27 Xu N, Hu X, Xu W, Mushrooms as efficient solar steam-generation devices. Advanced Materials, 2017, 29(28): 1606762

28 Ying P, Li M, Yu F, Band gap engineering in efficient solar-driven interfacial evaporation system. ACS Applied Materials & Interfaces, 2020, 12(29): 32880–32887

29 Geng Y, Zhang K, Yang K, Constructing hierarchical carbon framework and quantifying water transfer for novel solar evaporation configuration. Carbon, 2019, 155: 25–33

30 Li Y, Gao T, Yang Z, 3D-printed, all-in-one evaporator for high-efficiency solar steam generation under 1 sun illumination. Advanced Materials, 2017, 29(26): 1700981

31 Li X, Min X, Li J, Storage and recycling of interfacial solar steam enthalpy. Joule, 2018, 2(11): 2477–2484

32 Zhong J, Huang C, Wu D, Influence factors of the evaporation rate of a solar steam generation system: a numerical study. International Journal of Heat and Mass Transfer, 2019, 128: 860–864

33 Li W, Li Z, Bertelsmann K, Fan D E. Portable low-pressure solar steaming-collection unisystem with polypyrrole origamis. Advanced Materials, 2019, 31(29): 1900720

34 Zhong J, Huang C, Wu D. Surrounding effects on the evaporation efficiency of a bi-layered structure for solar steam generation. Applied Thermal Engineering, 2018, 144: 331–341

35 Cussler E L. Diffusion: Mass Transfer in Fluid Systems. Cambridge: Cambridge University Press, 2009

36 Eckert E R G, Drake R M Jr. Analysis of Heat and Mass Transfer. Washington D. C.: Hemisphere Publishing Corp., 1987