Portal de Periódicos da CAPES

Artigo Produção Nacional Revisado por pares

BIBTEX RIS

Acceleration tests using gasolines formulated with di-TAE, TAEE and MTBE ethers

2010; Elsevier BV; Volume: 90; Issue: 3 Linguagem: Inglês

10.1016/j.fuel.2010.10.031

1873-7153

Renato Cataluña, Díocles Dalávia, Rosângela da Silva, Eliana Weber de Menezes, Vanessa Venturi, Rafael Wagner,

Vehicle emissions and performance

Abstract This study evaluates the acceleration and performance of car engines fueled by gasoline formulated with di-tert-amyl ether (di-TAE), tert-amyl ethyl ether (TAEE), and methyl tert-butyl ether (MTBE), whose compositions contain an oxygen concentration of 2.7 wt.%. The performance tests were carried out in a roll dynamometer using a Fiat–Strada commercial vehicle equipped with open-loop electronic fuel injection. The use of ethers from partially renewable sources, such as di-TAE and TAEE in gasoline formulations, is an attractive alternative to reduce fossil fuel consumption. These ethers, both pure and in formulations, require a lower air/fuel ratio, since part of the oxygen needed to oxidize the fuel is already present in the molecule. The results obtained in acceleration tests using gasoline formulated with the di-TAE, TAEE and MTBE ethers indicated that the best acceleration response was obtained with the gasoline/TAEE mixture and the lowest specific consumption was with the gasoline/di-TAE mixture. TAEE is an adequate alternative to replace MTBE in Otto cycle internal combustion engines, since this compound is partially biorenewable and provides a comparable thermal efficiency and lower specific fuel consumption.