Low-cost high-efficiency solar steam generator by combining thin film evaporation and heat localization: Both experimental and theoretical study

Generating water steam is a significant process for many fields. By combining heat localization and thin-film evaporation, a low-cost high-efficiency solar steam generator is proposed here. The measurements show that the energy efficiency is 78% at 1 kW/m2. Meanwhile, the experimental results agree...

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Bibliographic Details
Published in:Applied thermal engineering 2018-10, Vol.143, p.1079-1084
Main Authors: Peng, Guilong, Ding, Hongru, Sharshir, Swellam Wafa, Li, Xiaojia, Liu, Hanchen, Ma, Dengke, Wu, Lirong, Zang, Jianfeng, Liu, Huan, Yu, Wei, Xie, Huaqing, Yang, Nuo
Format: Article
Language:English
Subjects:
Boilers
Carbon nanotubes
Dependence
Evaporation
Graphene
Graphite
Graphite micro/nano particles
Localization
Low cost
Molybdenum disulfide
Nanoparticles
Nanotechnology
Position (location)
Solar energy
Steam generation
Thin films
Thin-film evaporation
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Summary:Generating water steam is a significant process for many fields. By combining heat localization and thin-film evaporation, a low-cost high-efficiency solar steam generator is proposed here. The measurements show that the energy efficiency is 78% at 1 kW/m2. Meanwhile, the experimental results agree well with our theoretical prediction based on thin-film evaporation theory. Besides, the dependence of efficiency on particle concentration and size are discussed. It’s found that the performance of the generator has a weak correlation to a few different particles (graphite, graphene, MoS2, and carbon nanotubes). This work offers a new in-depth understanding of high-efficiency solar steam generation and shows an example of using nanotechnology in practical application by a cheap and simple way.
ISSN:1359-4311
1873-5606
DOI:10.1016/j.applthermaleng.2018.08.004