Resumo

GOMEZ-MONTOYA, Juan-Pablo; CACUA-MADERO, Karen-Paola; IRAL-GALEANO, Layrisser  e  AMELL-ARRIETA, Andrés-Adolfo. EFFECT OF BIOGAS ENRICHED WITH HYDROGEN ON THE OPERATION AND PERFORMANCE OFADIESEL-BIOGAS DUALENGINE. C.T.F Cienc. Tecnol. Futuro [online]. 2013, vol.5, n.2, pp.61-71. ISSN 0122-5383.

The effect of hydrogen enrichment was tested for a diesel-biogas dual fuel engine. The operation and performance characteristics, such as thermal efficiency, pollutant emissions and combustion parameters were determined. Experiments have been carried with a stationary compression ignition (CI) engine coupled with a generator in dual mode using a typical biogas composition of 60% vol. CH₄ and 40% vol. CO₂. For every load engine evaluated, the hydrogen concentration was varied from 5 to 20% H₂ v/v. The results showed increases in peak pressure chamber up to 10.7 bar, and diesel substitution levels up to 80% under conditions of steady combustion without knocking. Also, thermal efficiency increases up to 16% and carbon monoxide emissions decreases up to 13% at full load, and 20% of hydrogen in engines operating in diesel-biogas dual mode.

Palavras-chave : Diesel dual engines; Biogas; Enrichment with hydrogen; Contaminant emissions; Thermal efficiency.

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