Xi Chen , Guixiang Chen , Longfei Yue , Deqian Zheng , Haitao Wang , Minmin Jiang
{"title":"中国卧式仓库小麦熏蒸过程中磷化氢流动的数值研究","authors":"Xi Chen , Guixiang Chen , Longfei Yue , Deqian Zheng , Haitao Wang , Minmin Jiang","doi":"10.1016/j.eaef.2019.02.005","DOIUrl":null,"url":null,"abstract":"<div><p>The phosphine flow during fumigation of wheat in a Chinese horizontal warehouse is studied by computational fluid dynamics modeling. The Renormalization Group k-ε turbulence model is adopted to simulate the three-dimensional airflow field and the species transport model is used to calculate the species mixing. The phosphine concentrations in the warehouse with different leaky area positions during the fan-forced fumigation and the tablet fumigation are continuously predicted for 28.5 days. Also, the effects of the fumigation methods and the leaky area positions on the phosphine concentrations are discussed. The results reveal that the phosphine concentration in the tablet fumigation takes longer time to be uniform than that in the fan-forced fumigation. The maximum value of the phosphine concentration in the fan-forced fumigation is larger and appears earlier than that in the tablet fumigation. We also found that the fumigation methods have greater impact on the phosphine concentration than the leaky area positions in this study. And the impacts of the leaky area positions on the phosphine concentration could be further influenced by the fumigation methods.</p></div>","PeriodicalId":38965,"journal":{"name":"Engineering in Agriculture, Environment and Food","volume":"12 3","pages":"Pages 279-288"},"PeriodicalIF":0.0000,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.eaef.2019.02.005","citationCount":"4","resultStr":"{\"title\":\"Numerical investigation on phosphine flow during fumigation of wheat in a Chinese horizontal warehouse\",\"authors\":\"Xi Chen , Guixiang Chen , Longfei Yue , Deqian Zheng , Haitao Wang , Minmin Jiang\",\"doi\":\"10.1016/j.eaef.2019.02.005\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>The phosphine flow during fumigation of wheat in a Chinese horizontal warehouse is studied by computational fluid dynamics modeling. The Renormalization Group k-ε turbulence model is adopted to simulate the three-dimensional airflow field and the species transport model is used to calculate the species mixing. The phosphine concentrations in the warehouse with different leaky area positions during the fan-forced fumigation and the tablet fumigation are continuously predicted for 28.5 days. Also, the effects of the fumigation methods and the leaky area positions on the phosphine concentrations are discussed. The results reveal that the phosphine concentration in the tablet fumigation takes longer time to be uniform than that in the fan-forced fumigation. The maximum value of the phosphine concentration in the fan-forced fumigation is larger and appears earlier than that in the tablet fumigation. We also found that the fumigation methods have greater impact on the phosphine concentration than the leaky area positions in this study. And the impacts of the leaky area positions on the phosphine concentration could be further influenced by the fumigation methods.</p></div>\",\"PeriodicalId\":38965,\"journal\":{\"name\":\"Engineering in Agriculture, Environment and Food\",\"volume\":\"12 3\",\"pages\":\"Pages 279-288\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2019-07-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://sci-hub-pdf.com/10.1016/j.eaef.2019.02.005\",\"citationCount\":\"4\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Engineering in Agriculture, Environment and Food\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S1881836618301721\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"Engineering\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Engineering in Agriculture, Environment and Food","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1881836618301721","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"Engineering","Score":null,"Total":0}
Numerical investigation on phosphine flow during fumigation of wheat in a Chinese horizontal warehouse
The phosphine flow during fumigation of wheat in a Chinese horizontal warehouse is studied by computational fluid dynamics modeling. The Renormalization Group k-ε turbulence model is adopted to simulate the three-dimensional airflow field and the species transport model is used to calculate the species mixing. The phosphine concentrations in the warehouse with different leaky area positions during the fan-forced fumigation and the tablet fumigation are continuously predicted for 28.5 days. Also, the effects of the fumigation methods and the leaky area positions on the phosphine concentrations are discussed. The results reveal that the phosphine concentration in the tablet fumigation takes longer time to be uniform than that in the fan-forced fumigation. The maximum value of the phosphine concentration in the fan-forced fumigation is larger and appears earlier than that in the tablet fumigation. We also found that the fumigation methods have greater impact on the phosphine concentration than the leaky area positions in this study. And the impacts of the leaky area positions on the phosphine concentration could be further influenced by the fumigation methods.
期刊介绍：
Engineering in Agriculture, Environment and Food (EAEF) is devoted to the advancement and dissemination of scientific and technical knowledge concerning agricultural machinery, tillage, terramechanics, precision farming, agricultural instrumentation, sensors, bio-robotics, systems automation, processing of agricultural products and foods, quality evaluation and food safety, waste treatment and management, environmental control, energy utilization agricultural systems engineering, bio-informatics, computer simulation, computational mechanics, farm work systems and mechanized cropping. It is an international English E-journal published and distributed by the Asian Agricultural and Biological Engineering Association (AABEA). Authors should submit the manuscript file written by MS Word through a web site. The manuscript must be approved by the author''s organization prior to submission if required. Contact the societies which you belong to, if you have any question on manuscript submission or on the Journal EAEF.
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