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Mathematical model of a plenum to obtain the dynamic characteristics of the mass flow of a turbo-charger

ABSTRACT

Turbochargers have proven to be essential in the automotive field as they are machines responsible for increasing power, reducing fuel consumption, and generating less carbon dioxide in an internal combustion engine. This article presents the development of a mathematical model based on a plenum to obtain the dynamic characteristics of the mass flow generated by a turbocharger. To comply with the proposal, it was based on the theoretical-practical knowledge of the laws and concepts that make up a turbocharger, resulting in the simulation of a mathematical model using the Simulink tool. For the development of the mathematical model, theoretical and test data in stable and dynamic regimes were used, as well as the behavior of the plenum subjected to the compression system. This proposed model will contribute to the scientific community by obtaining the characteristics between the compression ratio and the compressor mass flow of a turbocharger and will also contribute to the field of detection and diagnosis of targeted failures in vehicle turbochargers.

Keywords
Turbochargers; mass flow; compressor; turbine; surge; simulation

Laboratório de Hidrogênio, Coppe - Universidade Federal do Rio de Janeiro, em cooperação com a Associação Brasileira do Hidrogênio, ABH2 Av. Moniz Aragão, 207, 21941-594, Rio de Janeiro, RJ, Brasil, Tel: +55 (21) 3938-8791 - Rio de Janeiro - RJ - Brazil
E-mail: revmateria@gmail.com