{"title":"利用垂直冷冻装置进行渐进式冷冻脱盐的传热模拟","authors":"Abdul Najim","doi":"10.1016/j.ijthermalsci.2023.108427","DOIUrl":null,"url":null,"abstract":"<div><p>This study presents an analytical study of heat transfer for progressive freeze desalination<span> of brackish water, seawater, and brine utilizing the vertical freezing apparatus. An analytical model was formulated by applying a heat balance at the ice-liquid interface. The model accounted for a reduced ice-liquid interface temperature during the process. Moreover, the convective heat transfer coefficient<span> for the forced flow (saltwater and coolant) situation was considered in the model. The solution of the model predicts the rate of ice formation, ice thickness, and overall heat transfer coefficient. The influence of saltwater stirring rate, coolant temperature, initial concentration, and immerse speed of the crystallizer into the coolant on the rate of ice formation, ice thickness, and overall heat transfer coefficient was investigated. The analytical data of the rate of ice formation was compared with the experimental findings from the literature. The analytical data and the experimental findings matched reasonably. A marginal error between analytical and experimental data was observed in the range of 5%–8%. The model assists in understanding the heat transfer during the process.</span></span></p></div>","PeriodicalId":341,"journal":{"name":"International Journal of Thermal Sciences","volume":"192 ","pages":"Article 108427"},"PeriodicalIF":4.9000,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Modelling of heat transfer for progressive freeze desalination utilizing the vertical freezing apparatus\",\"authors\":\"Abdul Najim\",\"doi\":\"10.1016/j.ijthermalsci.2023.108427\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>This study presents an analytical study of heat transfer for progressive freeze desalination<span> of brackish water, seawater, and brine utilizing the vertical freezing apparatus. An analytical model was formulated by applying a heat balance at the ice-liquid interface. The model accounted for a reduced ice-liquid interface temperature during the process. Moreover, the convective heat transfer coefficient<span> for the forced flow (saltwater and coolant) situation was considered in the model. The solution of the model predicts the rate of ice formation, ice thickness, and overall heat transfer coefficient. The influence of saltwater stirring rate, coolant temperature, initial concentration, and immerse speed of the crystallizer into the coolant on the rate of ice formation, ice thickness, and overall heat transfer coefficient was investigated. The analytical data of the rate of ice formation was compared with the experimental findings from the literature. The analytical data and the experimental findings matched reasonably. A marginal error between analytical and experimental data was observed in the range of 5%–8%. The model assists in understanding the heat transfer during the process.</span></span></p></div>\",\"PeriodicalId\":341,\"journal\":{\"name\":\"International Journal of Thermal Sciences\",\"volume\":\"192 \",\"pages\":\"Article 108427\"},\"PeriodicalIF\":4.9000,\"publicationDate\":\"2023-10-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"International Journal of Thermal Sciences\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S1290072923002880\",\"RegionNum\":2,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"ENGINEERING, MECHANICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"International Journal of Thermal Sciences","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1290072923002880","RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, MECHANICAL","Score":null,"Total":0}
Modelling of heat transfer for progressive freeze desalination utilizing the vertical freezing apparatus
This study presents an analytical study of heat transfer for progressive freeze desalination of brackish water, seawater, and brine utilizing the vertical freezing apparatus. An analytical model was formulated by applying a heat balance at the ice-liquid interface. The model accounted for a reduced ice-liquid interface temperature during the process. Moreover, the convective heat transfer coefficient for the forced flow (saltwater and coolant) situation was considered in the model. The solution of the model predicts the rate of ice formation, ice thickness, and overall heat transfer coefficient. The influence of saltwater stirring rate, coolant temperature, initial concentration, and immerse speed of the crystallizer into the coolant on the rate of ice formation, ice thickness, and overall heat transfer coefficient was investigated. The analytical data of the rate of ice formation was compared with the experimental findings from the literature. The analytical data and the experimental findings matched reasonably. A marginal error between analytical and experimental data was observed in the range of 5%–8%. The model assists in understanding the heat transfer during the process.
期刊介绍：
The International Journal of Thermal Sciences is a journal devoted to the publication of fundamental studies on the physics of transfer processes in general, with an emphasis on thermal aspects and also applied research on various processes, energy systems and the environment. Articles are published in English and French, and are subject to peer review.
The fundamental subjects considered within the scope of the journal are:
* Heat and relevant mass transfer at all scales (nano, micro and macro) and in all types of material (heterogeneous, composites, biological,...) and fluid flow
* Forced, natural or mixed convection in reactive or non-reactive media
* Single or multi–phase fluid flow with or without phase change
* Near–and far–field radiative heat transfer
* Combined modes of heat transfer in complex systems (for example, plasmas, biological, geological,...)
* Multiscale modelling
The applied research topics include:
* Heat exchangers, heat pipes, cooling processes
* Transport phenomena taking place in industrial processes (chemical, food and agricultural, metallurgical, space and aeronautical, automobile industries)
* Nano–and micro–technology for energy, space, biosystems and devices
* Heat transport analysis in advanced systems
* Impact of energy–related processes on environment, and emerging energy systems
The study of thermophysical properties of materials and fluids, thermal measurement techniques, inverse methods, and the developments of experimental methods are within the scope of the International Journal of Thermal Sciences which also covers the modelling, and numerical methods applied to thermal transfer.
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