S.V. Syrodoy, G.V. Kuznetsov, N.A. Nigay, J.A. Kostoreva, R.R. Zamaltdinov, N.Y. Gutareva, V. Akimov
{"title":"Crushing droplets of coal-water fuel under conditions of high-speed impact on a solid barrier","authors":"S.V. Syrodoy, G.V. Kuznetsov, N.A. Nigay, J.A. Kostoreva, R.R. Zamaltdinov, N.Y. Gutareva, V. Akimov","doi":"10.1016/j.icheatmasstransfer.2024.107732","DOIUrl":null,"url":null,"abstract":"<div><p><strong>Annotation.</strong> Currently, one of the problems significantly hindering the development and implementation of the water-coal technologies in the energy sector is the lack of reliable methods of spraying CWF to a finely dispersed state in the furnace space of the boiler units. The article provides a scientific justification for the new technology of spraying water-coal fuel. The results of the experimental studies of the processes of crushing single drops of water-coal fuel when the latter collide with a metal plate rotating at high angular velocity are presented. Based on the results of the experiments, the main modes of crushing fuel drops have been established depending on the impact velocity at the time of collision with an obstacle. Also, according to the results of the experiments, the distributions of the number of secondary drops of water-coal fuel in size depending on the collision velocity of the drop with an obstacle were established. The relationship between the efficiency of the crushing process and the impact velocity is shown.</p></div>","PeriodicalId":332,"journal":{"name":"International Communications in Heat and Mass Transfer","volume":null,"pages":null},"PeriodicalIF":6.4000,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"International Communications in Heat and Mass Transfer","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0735193324004949","RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"MECHANICS","Score":null,"Total":0}
引用次数: 0
Abstract
Annotation. Currently, one of the problems significantly hindering the development and implementation of the water-coal technologies in the energy sector is the lack of reliable methods of spraying CWF to a finely dispersed state in the furnace space of the boiler units. The article provides a scientific justification for the new technology of spraying water-coal fuel. The results of the experimental studies of the processes of crushing single drops of water-coal fuel when the latter collide with a metal plate rotating at high angular velocity are presented. Based on the results of the experiments, the main modes of crushing fuel drops have been established depending on the impact velocity at the time of collision with an obstacle. Also, according to the results of the experiments, the distributions of the number of secondary drops of water-coal fuel in size depending on the collision velocity of the drop with an obstacle were established. The relationship between the efficiency of the crushing process and the impact velocity is shown.
期刊介绍：
International Communications in Heat and Mass Transfer serves as a world forum for the rapid dissemination of new ideas, new measurement techniques, preliminary findings of ongoing investigations, discussions, and criticisms in the field of heat and mass transfer. Two types of manuscript will be considered for publication: communications (short reports of new work or discussions of work which has already been published) and summaries (abstracts of reports, theses or manuscripts which are too long for publication in full). Together with its companion publication, International Journal of Heat and Mass Transfer, with which it shares the same Board of Editors, this journal is read by research workers and engineers throughout the world.
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