Study On Performance Of Alcohol-based Fuel Burner And Its Multi-fields Synergy Mechanism

The alcohol-based fuel supported strongly by the state is a wide variety of sources, the environmentally-friendly and the very promising alternative fuel. Based on the increasing energy-conserving and environment-protective awareness and market regulation, the alcohol-based fuel is playing more and more important role in the structure of the energy industry in our country. If the R&D processes of alcohol-based fuel burner always depend on the Engineering Experiment, there must be such significant disadvantages as high costs, long development cycle and high risk. However, the combustion numerical simulation technology, improving constantly and developing rapidly, provides a feasible new approach to resolve the issues. Therefore, performance optimization and analysis of multi-fields synergy for the alcohol-based fuel burner can be completed by the numerical simulation. And these numerical simulation results will be brought in the design improvement of the alcohol-based fuel burner, which will provide the solid theoretical evidence to the optimization design of alcohol-based fuel burner.Therefore, this work is supported by National Technical Innovation Fund for Mid and Small Size Enterprise of China [07C26214301758]. Several exploratory researches have been done for the high efficient and low-emission alcohol-based fuel burners. The following are the major works and innovations.①Using the combustion numerical simulations with experimental verification methods, the paper have analyzed the performance of alcohol-based fuel burners. The CH3OH, CO, NOx, O2 mass fraction and the pressure field, velocity field, temperature field have been obtained in the paper.②The performance of alcohol-based fuel burner is analyzed by the field synergy principle. When the pressure is the rated pressure, the synergy between the velocity vector and temperature gradient is the best, and further, the performance of the alcohol-based fuel burner is at its best.③Based on alcohol-based fuel burner field synergy analysis results, the new burner has been designed and developed. Experimental results prove the correctness of the Field synergy optimization theory.