From the article:
Biomass gasification is environmentally benign and holds large promise for the future. The research on producer gas engines commenced about a decade ago at Indian Institute of Science, Bangalore and today IISc and Cummins India Limited are partnering in developing and deploying producer gas engines. There are nearly 5 MWe power plants installed in the country and gained a cumulative experience of over 60,000 hours. Cummins India Limited is now offering producer gas engines in India backed with all commercial warranties coupled with the gasification technologies developed at the Indian Institute of Science. A range of gas engines up to 250 kWe capacity has undergone rigorous testing. The trials include tests for gas quality on engine performance, power output, emission and engine’s response to load changes. The gas engines currently adapted for power generation application are fitted with a patented producer gas carburetion system which ensures nearly constant air-to-fuel ratio at various load factors. The producer gas engine power plants are serving applications like captive power, grid linked independent power and for distributed power generation. Some of these plants have been closely monitored and reliability studies conducted by the engine manufacturer. The studies indicate the wear of the engine’s components assessed at the end of 5000 hours of operation are well within limits when compared to natural gas engine.