Exergetic analysis of compressed air for vehicular propulsion Petrobras - Petroleo Brasileiro S.A

Format:

Conference/Event

Author/Creator:

Carvalho, Leonardo de Oliveira, author.

Conference Name:

2008 SAE Brasil Congress and Exhibit (2008-10-07 : Sao Paulo, Brazil)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2008

Summary:

Exergy analysis is a valuable tool for new combustion engine technologies evaluation. By combining both first and second laws of thermodynamics, the availability content of a control system can be precisely calculated, and maximum available work can be determined. One of the main features of exergy evaluation is that it can be performed without knowledge of intrinsic working details of the device being tested.Compressed air vehicles have been studied in the latter years, and several commercial solutions are being developed. While each developer approaches the problem with a different setup, all must be constrained by the second-law analysis.In this paper, a theoretical exergy analysis is performed for the compressed air engine, and the exergy content is determined as a function of the storage pressure. The exergy density of a typical compressed air tank is compared to those of hydrocarbons. It is shown that this technology isn't capable of supplying the necessary mileage for a typical light commercial vehicle, unless significant power saving procedures are implemented

Notes:

Vendor supplied data

Publisher Number:

2008-36-0315

Access Restriction:

Restricted for use by site license