{"title":"An experimental investigation and thermo-economic performance analysis of solar desalination system by using nano-enhanced PCM","authors":"Varun Kumar Singh, Devesh Kumar","doi":"10.1016/j.mtsust.2024.100884","DOIUrl":null,"url":null,"abstract":"<div><p>Desalination combined with nano-enhanced phase change material has the potential to significantly transform water sustainability by offering an ecologically responsible resolution. This work introduces single-slope solar still coupled with a novel helical parabolic collector, incorporating nanoparticles doped phase change materials to enhance desalination system performance. Various objective functions include as heat transfer coefficient, useful heat gain, productivity analysis, energy efficiency, overall thermal efficiency, exergy analysis (for both collector and solar still), and economic parameters are thoroughly examined. Experimental studies explore the impact on objective functions by comparing PCM coupled system to the system without PCM. Varying mass concentrations of nanoparticles (CuO/TiO<sub>2</sub>), PCM (Paraffin Wax, KCl, MgCl<sub>2</sub>.6H<sub>2</sub>O) are taken as decision values. Additionally, PCM configurations (1–6) are examined through scanning electron microscopy (SEM). The analysis resulted an average evaporative heat transfer coefficient range of 14.74–26.79 W/m<sup>2</sup>.K, maximum productivity yield of 3268 ml/m<sup>2</sup>/day. Energy and exergy efficiency are 46.23% and 10.67% respectively with a payback period of 129 days, and a cost per liter of $ 0.012. The study further highlights an increment in temperature drop between water and glass temperature and improved daily yield with PCM-3. Preheating of feed water exhibited improved efficiency of solar still desalination system. A comparative study of solar desalination systems is also included.</p></div>","PeriodicalId":18322,"journal":{"name":"Materials Today Sustainability","volume":null,"pages":null},"PeriodicalIF":7.1000,"publicationDate":"2024-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Materials Today Sustainability","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2589234724002203","RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"GREEN & SUSTAINABLE SCIENCE & TECHNOLOGY","Score":null,"Total":0}
引用次数: 0
Abstract
Desalination combined with nano-enhanced phase change material has the potential to significantly transform water sustainability by offering an ecologically responsible resolution. This work introduces single-slope solar still coupled with a novel helical parabolic collector, incorporating nanoparticles doped phase change materials to enhance desalination system performance. Various objective functions include as heat transfer coefficient, useful heat gain, productivity analysis, energy efficiency, overall thermal efficiency, exergy analysis (for both collector and solar still), and economic parameters are thoroughly examined. Experimental studies explore the impact on objective functions by comparing PCM coupled system to the system without PCM. Varying mass concentrations of nanoparticles (CuO/TiO2), PCM (Paraffin Wax, KCl, MgCl2.6H2O) are taken as decision values. Additionally, PCM configurations (1–6) are examined through scanning electron microscopy (SEM). The analysis resulted an average evaporative heat transfer coefficient range of 14.74–26.79 W/m2.K, maximum productivity yield of 3268 ml/m2/day. Energy and exergy efficiency are 46.23% and 10.67% respectively with a payback period of 129 days, and a cost per liter of $ 0.012. The study further highlights an increment in temperature drop between water and glass temperature and improved daily yield with PCM-3. Preheating of feed water exhibited improved efficiency of solar still desalination system. A comparative study of solar desalination systems is also included.
期刊介绍:
Materials Today Sustainability is a multi-disciplinary journal covering all aspects of sustainability through materials science.
With a rapidly increasing population with growing demands, materials science has emerged as a critical discipline toward protecting of the environment and ensuring the long term survival of future generations.