Exposure the role of hydrogen with algae spirogyra biodiesel and fuel-borne additive on a diesel engine: An experimental assessment on dual fuel combustion mode
S. Aravind, Debabrata Barik, Gandhi Pullagura, Sreejesh S. R. Chandran, Elumalai PV, Prabhu Paramasivam, Dhinesh Balasubramanian, Yasser Fouad, Manzoore Elahi M. Soudagar, Md Abul Kalam, Choon Kit Chan
Abstract
This investigation is focused on the study of the overall performance of a single-cylinder diesel engine with the use of 99.99 % pure elemental hydrogen (H 2 ), as a gaseous fuel and algae Spirogyra biodiesel 30 % (SBD30) with 1.5 % Di-tert Butyl Peroxide (1.5%DTBP) as cetane improver and 2 % Algae Residual Carbon Nanoparticle (2%ARCNP). During the investigation, the hydrogen flow rate was controlled by an electronic gas injector and varied in the range of 5–20 lpm in the increment of 5 lpm. Among the fuel blends SBD30 + 1.5%DTBP+2%ARCNP+15H 2 acted as a good combination to reduce ID and CD; and to boost HRR, BTE, and EGT. Additionally, this resulted in a drastic decline in the emission components such as HC, CO, and smoke. However, a surge in NO was observed for all the fuel sampled by the induction of H 2 . For SBD30 + 1.5%DTBP+2%ARCNP+15H 2 a shorter ID and CD were observed at 7.2°CA and 34.5 °CA than diesel respectively at full load. The MCP for SBD30 + 1.5%DTBP+2%ARCNP+15H 2 was 81 bar which occurred at 9.2°CA, however, the HRR was 61.3 J/°CA which was 1.2 % lower than that of 20 LPM hydrogen flow rate, at full load respectively. By using hydrogen + DTBP + ARCNP, the BSFC was overall lower by about 22 % and the BTE was improved by about 36.1 %. The CO, HC, and smoke for SBD30 + 1.5%DTBP+2%ARCNP+15H 2 was 64.8 %, 38.8 %, and 29.2 % lower than diesel however, the NO emission was 32.6 % higher than diesel at full load respectively.