Performance analysis of a producer gas-fuelled heavy-duty SI engine at full-load operation

摘要

Biomass gasification converts a solid fuel into a gaseous \udmixture (syngas or producer gas) which can be burnt in \udreciprocating internal combustion engines (ICEs) to produce \udelectrical power. A wide variety of bio-residues can be \udprocessed to obtain syngas, making biomass gasification a very interesting way to exploit the energy content of \udindustrial by-products and agricultural wastes. \udThis paper focuses on the operation of a spark ignition \ud(SI) ICE burning low-heating va\udlue gas produced in a fixed-\udbed downdraft gasifier. The biomass gasification power plant \udhas collected more than nine months of operation till \udnow without need of any extraordinary maintenance of\ud the engine. Engine performance is calculated using \udexperimental data acquired at different air-to-fuel ratios \udand spark timings, and then compared with results of test \udperformed by other authors. The work is mainly aimed at analysing the effect of PG fuelling on brake power, \udefficiency and emissions of heavy-duty engines