Guangchai made the first natural gas engine 8M23G performance indicators in China

On March 7, 2017, after nearly two months of performance commissioning test, 711 of China Shipbuilding Heavy Industry Co., Ltd. independently researched and developed the first intrinsically safe natural gas engine 8M23G gas machine manufactured by Guangzhou Diesel Engine Factory at 1000 rpm and 1600 kW rated power. The engine is running stably, the average effective pressure and heat rate have reached the design and development goals, and the emission meets the IMO Tier III standard, marking a milestone for the project – the performance indicators have reached the standard.
During the test period, the test team members were stationed at the Guangzhou Diesel Engine Factory. With the spirit of innovation and high enthusiasm, they successfully completed the phased test tasks. For gas engines, reasonable air-fuel ratio, tissue-efficient lean combustion, and control of heat load on heated parts are the focus of experimental development. Team members work together, boldly assume, and carefully verify, overcoming the changes in gas source composition. The difficulty solved the problems of testing and peripheral equipment imperfections, and provided parameter adjustment schemes through data analysis to improve the test efficiency.

Through repeated exploration and development of the key parameters of the performance control parameters of the throttle valve, bypass valve and gas injection valve under different operating conditions, the stable and safe operation of the gas machine is realized, and the performance development goal required by the mission book is achieved.
While harvesting the results of the work, the technical ability and self-confidence of the test team have also been greatly improved. In the next step, the project team will carry out natural gas engine reliability test and type approval test, laying a solid foundation for the early entry of the product into the market.

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