Experimental study of electric field combined nanofluid to enhance vapor generation in the solar steam generator

IF 9 1区工程技术 Q1 ENERGY & FUELS

Renewable Energy Pub Date : 2024-11-06 DOI:10.1016/j.renene.2024.121819

Chaofan Li , Dongzhi Liu , Yalei Zhang , Shuangfei Li , Deqiang He , Yanjun Chen

{"title":"Experimental study of electric field combined nanofluid to enhance vapor generation in the solar steam generator","authors":"Chaofan Li , Dongzhi Liu , Yalei Zhang , Shuangfei Li , Deqiang He , Yanjun Chen","doi":"10.1016/j.renene.2024.121819","DOIUrl":null,"url":null,"abstract":"<div><div>Volumetric solar steam generation has a wide range of applications in many fields such as electricity generation, water purification, seawater desalination, and wastewater treatment. However, the efficiency of volumetric evaporation using nanofluids as photothermal conversion materials is still low. In this paper, electric field is applied to the volumetric solar steam generation system to enhance steam generation efficiency by utilizing the effect of electric field on nanoparticle resuspension as well as the formation and escape of nanobubbles. The results show that the electric field promotes steam generation at high solar radiation intensities and the promotion is enhanced with the increase of voltage. The steam generation of 0.09 vol% TiN-water nanofluid at 10 kV and solar radiation intensity of 3 sun significantly increases by 21.71 % than that without electric field. Electric field provides an external force for the movement of nanobubble-particle complexes, accelerating the process of rise, fusion, and escape of nanobubbles, and accelerating the resuspension as well as upward and downward circulation of nanoparticles in the cavity. Thus, the vapor generation efficiency is enhanced. The research in this paper provides theoretical guidance to enhance vapor generation in the solar steam generator.</div></div>","PeriodicalId":419,"journal":{"name":"Renewable Energy","volume":"237 ","pages":"Article 121819"},"PeriodicalIF":9.0000,"publicationDate":"2024-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Renewable Energy","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0960148124018871","RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENERGY & FUELS","Score":null,"Total":0}

引用次数: 0

Abstract

Volumetric solar steam generation has a wide range of applications in many fields such as electricity generation, water purification, seawater desalination, and wastewater treatment. However, the efficiency of volumetric evaporation using nanofluids as photothermal conversion materials is still low. In this paper, electric field is applied to the volumetric solar steam generation system to enhance steam generation efficiency by utilizing the effect of electric field on nanoparticle resuspension as well as the formation and escape of nanobubbles. The results show that the electric field promotes steam generation at high solar radiation intensities and the promotion is enhanced with the increase of voltage. The steam generation of 0.09 vol% TiN-water nanofluid at 10 kV and solar radiation intensity of 3 sun significantly increases by 21.71 % than that without electric field. Electric field provides an external force for the movement of nanobubble-particle complexes, accelerating the process of rise, fusion, and escape of nanobubbles, and accelerating the resuspension as well as upward and downward circulation of nanoparticles in the cavity. Thus, the vapor generation efficiency is enhanced. The research in this paper provides theoretical guidance to enhance vapor generation in the solar steam generator.

查看原文本刊更多论文

电场结合纳米流体提高太阳能蒸汽发生器蒸汽生成量的实验研究

体积式太阳能蒸汽发电在发电、水净化、海水淡化和废水处理等多个领域有着广泛的应用。然而，使用纳米流体作为光热转换材料进行体积蒸发的效率仍然很低。本文将电场应用于体积式太阳能蒸汽发生系统，利用电场对纳米粒子再悬浮以及纳米气泡的形成和逸散的影响来提高蒸汽发生效率。结果表明，在太阳辐射强度较高的情况下，电场能促进蒸汽的产生，而且随着电压的增加，促进作用会增强。在 10 kV 和太阳辐射强度为 3 个太阳的条件下，0.09 vol% TiN-水纳米流体的蒸汽产生量比无电场条件下显著增加了 21.71%。电场为纳米气泡-颗粒复合物的运动提供了外力，加速了纳米气泡的上升、融合和逃逸过程，并加速了纳米颗粒在腔体内的再悬浮以及上下循环。因此，蒸汽生成效率得到了提高。本文的研究为提高太阳能蒸汽发生器的蒸汽发生率提供了理论指导。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Renewable Energy 工程技术-能源与燃料

CiteScore

18.40

自引率

9.20%

发文量

1955

审稿时长

6.6 months

期刊介绍： Renewable Energy journal is dedicated to advancing knowledge and disseminating insights on various topics and technologies within renewable energy systems and components. Our mission is to support researchers, engineers, economists, manufacturers, NGOs, associations, and societies in staying updated on new developments in their respective fields and applying alternative energy solutions to current practices. As an international, multidisciplinary journal in renewable energy engineering and research, we strive to be a premier peer-reviewed platform and a trusted source of original research and reviews in the field of renewable energy. Join us in our endeavor to drive innovation and progress in sustainable energy solutions.