Study on the Modification and Performance of Compressed Natural Gas Engine

Abstract

To modify a diesel engine into a natural gas engine, the supplying system, intake system, ignition system, combustion system and post-processing system are redesigned to meet the requirements of applying natural gas on the engine. Then on the basis of calibration of basic ignition advance angle and volumetric efficiency of natural gas engine, bench test is done to study the velocity performance, load performance and universal performance, as well as a comprehensively evaluation on the performance of natural gas engine. The result indicates that the modifying of nature gas engine is reasonable as it achieves the application of CNG on the engine and a comprehensive performance of engine.

A Review of Development of Natural Gas Engines

“…After years of exploration and research by scholars and engineers, the great progress of technologies in NGEs have been made [45]. These technologies include the heterogeneous compression combustion, homogeneous charge compression ignition (HCCI) [46], dual fuel (natural gas and diesel) combustion, Miller cycle, long stroke, exhaust gas recirculation (EGR), and a combination of these technologies.…”