Portal de Periódicos da CAPES

Effect of biogas-enriched with hydrogen on the operation and performance of a diesel-biogas dual engine

2013; Volume: 5; Issue: 2 Linguagem: Inglês

10.29047/01225383.57

2382-4581

Juan Pablo Gómez Montoya, Karen Paola Cacua Madero, Layrisser Iral Galeano, Andrés Adolfo Amell Arrieta,

Combustion and flame dynamics

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.