Study on Miller Cycle Gas Engine for Co-generation Systems - Effect of Miller Cycle on the Performance of Gas Engine 960949
The Miller cycle was applied to a turbo-charged 324 kW gas engine with three-way catalyst. Three different methods of the Miller cycle were applied, the Early Rotary-Valve Closing (ERVC), Late Intake-Valve Closing (LIVC) and a combination of the ERVC and LIVC methods. The effect of the methods on engine performance was extensively investigated. The experimental results demonstrate a promising performance of the LIVC method, which substantially improves the thermal efficiency up to 38%, compared to 34% by the conventional Otto Cycle. The LIVC method is expected to improve engine performance with inexpensive modification. The combination of the ERVC and LIVC methods appears to further improve thermal efficiency.
Citation: Okamoto, K., Zhang, F., Shimogata, S., Shoji, F. et al., "Study on Miller Cycle Gas Engine for Co-generation Systems - Effect of Miller Cycle on the Performance of Gas Engine," SAE Technical Paper 960949, 1996, https://doi.org/10.4271/960949. Download Citation