Exploring the Benefits of Annular Rectangular Rib for Enhancing Thermal Efficiency of Nonpremixed Micro-Combustor
Joint Authors
Meng, Lei
Wang, Hongcai
Fang, Hongru
Lou, Bingqian
Abubakar, Shitu
Li, Yuqiang
Source
Issue
Vol. 2020, Issue 2020 (31 Dec. 2020), pp.1-13, 13 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2020-02-13
Country of Publication
Egypt
No. of Pages
13
Main Subjects
Abstract EN
Micro-combustor can provide the required thermal energy of micro-thermal photovoltaic (MTPV) systems.
The performance of MTPV is greatly affected by the effectiveness of a micro-combustor.
In this study, a numerical simulation was conducted to explore the benefits of annular rectangular rib for enhancing the thermal performance of a nonpremixed micro-combustor.
Based on the investigations under various rib heights, rib positions, and inlet mass flow rates, it is found that the addition of annular rectangular ribs in the micro-combustor creates a turbulent zone in the combustion chamber, thereby enhancing the heat transfer efficiency between the inner wall of the combustion chamber and the burned gas.
The micro-combustor with annular rectangular rib shows a higher and more uniform wall temperature.
When the H2 mass flow is 7.438 × 10−8 kg/s and the air mass flow is 2.576 × 10−6 kg/s, the optimum dimensionless rib position is at l = 6/9 and r = 0.4.
At this condition, the micro-combustor has the most effective and uniform heat transfer performance and shows significant decreases in entropy generation and exergy destruction.
However, the optimum l and r significantly depend on the inlet mass flow of H2/air mixture.
American Psychological Association (APA)
Wang, Hongcai& Fang, Hongru& Lou, Bingqian& Abubakar, Shitu& Li, Yuqiang& Meng, Lei. 2020. Exploring the Benefits of Annular Rectangular Rib for Enhancing Thermal Efficiency of Nonpremixed Micro-Combustor. Journal of Chemistry،Vol. 2020, no. 2020, pp.1-13.
https://search.emarefa.net/detail/BIM-1182541
Modern Language Association (MLA)
Wang, Hongcai…[et al.]. Exploring the Benefits of Annular Rectangular Rib for Enhancing Thermal Efficiency of Nonpremixed Micro-Combustor. Journal of Chemistry No. 2020 (2020), pp.1-13.
https://search.emarefa.net/detail/BIM-1182541
American Medical Association (AMA)
Wang, Hongcai& Fang, Hongru& Lou, Bingqian& Abubakar, Shitu& Li, Yuqiang& Meng, Lei. Exploring the Benefits of Annular Rectangular Rib for Enhancing Thermal Efficiency of Nonpremixed Micro-Combustor. Journal of Chemistry. 2020. Vol. 2020, no. 2020, pp.1-13.
https://search.emarefa.net/detail/BIM-1182541
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1182541