{"title":"Effects of hydrogen blending on combustion and pollutant emission of propane/air in a model furnace with a rotary kiln burner","authors":"Yuangang Wang , Chae Hoon Sohn , Jong-Young Kim","doi":"10.1016/j.tsep.2023.102330","DOIUrl":null,"url":null,"abstract":"<div><p>A rotary kiln burner is one of the critical equipment in various industrial processes, particularly in the field of material calcination. This study focuses on the effects of hydrogen blending in a rotary kiln burner operating with propane as a fuel. The primary objectives are to explore the effects of key parameters, such as hydrogen blending ratio, fuel hole size, and air flow rate, on the combustion and emission characteristics under the ignition condition. Results reveal that a hydrogen blending ratio of 10% leads to a 3.4% and 1.5% reduction in COx and NOx emission indexes, respectively. The hydrogen can be mixed with propane while maintaining the same total heat release, reducing carbon and nitrogen oxide emissions. Although adjusting the fuel hole size allows the flow characteristics after hydrogen blending to be restored to their pre-blending state, the combustion characteristics would be changed. With a 30% increase in air flow rate under fuel-rich ignition conditions, the propane consumption rate witnesses a 20.8% growth, accompanied by a parallel rise of 6.8% in both COx and NOx emission indexes. These numerical results can be a reference in designing kiln burners and selecting operating conditions.</p></div>","PeriodicalId":23062,"journal":{"name":"Thermal Science and Engineering Progress","volume":"47 ","pages":"Article 102330"},"PeriodicalIF":5.4000,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Thermal Science and Engineering Progress","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2451904923006832","RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2023/12/12 0:00:00","PubModel":"Epub","JCR":"Q2","JCRName":"ENERGY & FUELS","Score":null,"Total":0}
引用次数: 0
Abstract
A rotary kiln burner is one of the critical equipment in various industrial processes, particularly in the field of material calcination. This study focuses on the effects of hydrogen blending in a rotary kiln burner operating with propane as a fuel. The primary objectives are to explore the effects of key parameters, such as hydrogen blending ratio, fuel hole size, and air flow rate, on the combustion and emission characteristics under the ignition condition. Results reveal that a hydrogen blending ratio of 10% leads to a 3.4% and 1.5% reduction in COx and NOx emission indexes, respectively. The hydrogen can be mixed with propane while maintaining the same total heat release, reducing carbon and nitrogen oxide emissions. Although adjusting the fuel hole size allows the flow characteristics after hydrogen blending to be restored to their pre-blending state, the combustion characteristics would be changed. With a 30% increase in air flow rate under fuel-rich ignition conditions, the propane consumption rate witnesses a 20.8% growth, accompanied by a parallel rise of 6.8% in both COx and NOx emission indexes. These numerical results can be a reference in designing kiln burners and selecting operating conditions.
期刊介绍：
Thermal Science and Engineering Progress (TSEP) publishes original, high-quality research articles that span activities ranging from fundamental scientific research and discussion of the more controversial thermodynamic theories, to developments in thermal engineering that are in many instances examples of the way scientists and engineers are addressing the challenges facing a growing population – smart cities and global warming – maximising thermodynamic efficiencies and minimising all heat losses. It is intended that these will be of current relevance and interest to industry, academia and other practitioners. It is evident that many specialised journals in thermal and, to some extent, in fluid disciplines tend to focus on topics that can be classified as fundamental in nature, or are ‘applied’ and near-market. Thermal Science and Engineering Progress will bridge the gap between these two areas, allowing authors to make an easy choice, should they or a journal editor feel that their papers are ‘out of scope’ when considering other journals. The range of topics covered by Thermal Science and Engineering Progress addresses the rapid rate of development being made in thermal transfer processes as they affect traditional fields, and important growth in the topical research areas of aerospace, thermal biological and medical systems, electronics and nano-technologies, renewable energy systems, food production (including agriculture), and the need to minimise man-made thermal impacts on climate change. Review articles on appropriate topics for TSEP are encouraged, although until TSEP is fully established, these will be limited in number. Before submitting such articles, please contact one of the Editors, or a member of the Editorial Advisory Board with an outline of your proposal and your expertise in the area of your review.
京公网安备 11010802042870号
京ICP备2023020795号-1
分享
求助内容：
应助结果提醒方式：
扫码关注我们
