Performance of small spark ignition engine fueled with biogas at different compression ratio and various carbon dioxide dilution
- Performance of small spark ignition engine fueled with biogas at different compression ratio and various carbon dioxide dilution
- 신유환; 최선; 김민수; 권의창; 송경수
- Biogas; Spark ignition engine; Compression ratio; Cumbustion chamber; Carbon dioxide
- Issue Date
- VOL 196-224
- In order to cope with power shortage in rural areas of developing countries and to reduce greenhouse gas emissions, we study the performance of small biogas-fueled internal combustion engines of which power is less than 5 kW. In particular, the influence of compression ratio on the engine is primarily examined. By decreasing the combustion chamber volume (from 19.3 cc to 16.6 cc), compression ratio (from 8.01:1 to 9.22:1) is increased to enhance brake power output (from 2.2 kW to 2.68 kW), brake thermal efficiency (from 22.0% to 29.8%) and brake specific fuel consumption of the engine (from 290.6 (sic) to 218.6 (sic)). In addition, as means to examine the effect of the biogas composition on engine performances, various carbon dioxide dilution ratios (from 0% to 50%) are tested. At lowest carbon dioxide dilution, maximum engine performance is obtained.
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