Evaluation of a Phenomenological Spray-Combustion Model for Two Open-Chamber Diesel Engines

Format:

Conference/Event

Author/Creator:

Kuo, Tang-Wei, author.

Conference Name:

1987 SAE International Fall Fuels and Lubricants Meeting and Exhibition (1987-11-02 : Toronto, Canada)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 1987

Summary:

The predictive capability of a phenomenological spray-combustion model was evaluated for diesel engine performance, combustion, and emissions. The data used for comparisons with the predictions resulted from tests on two single-cylinder research-type open-chamber diesel engines -- a 2.0-L per cylinder heavy-duty engine and a 0.52-L per cylinder light-duty engine. The data covered wide ranges of speed and overall air-fuel ratio.Such global performance quantities as indicated mean effective pressure and indicated thermal efficiency predicted by the model agreed with experimental results from both engines within 5%. Pressure-time and heat-release rate predictions agreed within 5-15%. However, further improvements are needed before the model can be used reliably for emissions predictions. Specifically, predictions of nitric oxide (NO) and non-volatile particulate (soot) were in poor agreement with the measurements, especially for the light-duty engine. Inadequate modeling of the spray-wall impingement could be the reason for the observed disagreement

Notes:

Vendor supplied data

Publisher Number:

872057

Access Restriction:

Restricted for use by site license