Multi-Fidelity Combustor Design and Experimental Test for a Micro Gas Turbine System
Multi-Fidelity Combustor Design and Experimental Test for a Micro Gas Turbine System
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DOI：
10.3390/en15072342
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发表时间：
2022-03
期刊：
影响因子：
3.2
通讯作者：
Yize Liu;T. Nikolaidis;S. H. Madani;M. Sarkandi;Abdelaziz Gamil;Muhamad F. Sainal;S. Hosseini
中科院分区：
文献类型：
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作者：
Yize Liu;T. Nikolaidis;S. H. Madani;M. Sarkandi;Abdelaziz Gamil;Muhamad F. Sainal;S. Hosseini
针对小型热电联产系统，提出了一种多保真度微燃烧室设计方法。该方法的特点是采用三维高保真建模和实验测试相结合的方法，将所开发的初步设计模型耦合起来。初步给出了集成的多物理场方案及其潜在的相互作用。在初步设计阶段，通过耦合降阶模型实现快速设计探索，其中定义了燃烧室布局，流动分布和燃烧器几何形状的细节以及燃烧室的基本性能。然后遵循高保真建模方法，提供详细的流动和发射物理的见解，探索设计参数的影响并优化设计。然后在MGT试验台制造和组装燃烧室。实验结果表明，所设计的燃烧室成功地应用于MGT系统。然后根据测试数据对多物理场模型进行验证和验证。基于高保真度方法获得的洞见，给出了对低阶模型的细化细节。传统化石燃料的短缺和对能源供应的持续需求导致了运行可再生燃料的微型涡轮系统的发展。然后进行数值分析，以评估沼气在排放和性能方面的潜在操作。它产生较少的氮氧化物排放，但在较低的甲烷含量下提出了火焰稳定性设计挑战。还提供了解决火焰稳定问题的策略的细节。
A multi-fidelity micro combustor design approach is developed for a small-scale combined heat and power CHP system. The approach is characterised by the coupling of the developed preliminary design model using the combined method of 3D high-fidelity modelling and experimental testing. The integrated multi-physics schemes and their underlying interactions are initially provided. During the preliminary design phase, the rapid design exploration is achieved by the coupled reduced-order models, where the details of the combustion chamber layout, flow distributions, and burner geometry are defined as well as basic combustor performance. The high-fidelity modelling approach is then followed to provide insights into detailed flow and emission physics, which explores the effect of design parameters and optimises the design. The combustor is then fabricated and assembled in the MGT test bench. The experimental test is performed and indicates that the designed combustor is successfully implemented in the MGT system. The multi-physics models are then verified and validated against the test data. The details of refinement on lower-order models are given based on the insights acquired by high-fidelity methods. The shortage of conventional fossil fuels and the continued demand for energy supplies have led to the development of a micro-turbine system running renewable fuels. Numerical analysis is then carried out to assess the potential operation of biogas in terms of emission and performance. It produces less NOx emission but presents a flame stabilisation design challenge at lower methane content. The details of the strategy to address the flame stabilisation are also provided.