SI Engine with Direct Injection of Methanol Reforming Products - First Experimental Results Technion Israel Institute of Technology

Format:

Book

Conference/Event

Author/Creator:

Tartakovsky, Leonid, author.

Contributor:

Amiel, Ran

Baibikov, V.

Fleischman, R.

Gutman, Mario

Poran, A.

Veinblat, M.

Conference Name:

JSAE/SAE 2015 Small Engine Technologies Conference & Exhibition (2015-11-17 : Osaka, Japan)

Language:

English

Physical Description:

1 online resource cm

Place of Publication:

Tokyo, JAPAN Society of Automotive Engineers of Japan 2015

Summary:

In this paper we describe conversion of the gen-set gasoline-fed carburetor single-cylinder SI engine to the direct-injection version operating with the gaseous hydrogen-rich methanol reforming products, and present the first experimental results.It was found that engine feeding by methanol steam reforming products has a great potential of pollutant emissions mitigation as compared with gasoline. NOx concentrations in the exhaust gas were reduced by a factor of 7 as a result of the lean combustion and lowering in-cylinder temperatures. Particle mass emissions were mitigated to zero-impact levels. Harmful emissions of the target pollutants THC, CO and the GHG gas CO2 were reduced by a factor of 6, 25 and 1.5, respectively. The achieved efficiency improvement of the engine fed by the directly injected methanol reformate calculated for primary liquid methanol consumption was found to be in the range of 20-70% (depending on the operating mode) as compared with the carburetor-fed gasoline. Higher values of the improvement were observed at lower engine loads.The in-cylinder maximal pressure and the value of pressure-rise rate were higher under the reformate feeding by 75% and 37%, respectively at the same ignition timing

Notes:

Vendor supplied data

Publisher Number:

2015-32-0712

Access Restriction:

Restricted for use by site license