Technical Paper
Waste Heat Recovery via Inverted Brayton Cycle Bottoming a Twin-turbo Gasoline Engine
2024-04-09
2024-01-2591
Air pollution from internal combustion engines poses a significant apprehension for both global warming and public health on a worldwide scale. The adoption of hybridization and electrification within the vehicular fleet can help to tackle these challenges. This study evaluates the waste heat recovery for electric power generation using Inverted Brayton Cycle (IBC) coupled with a Mercedes Benz CLS 350 CGI engine . The engine model was developed in AVL software and validated against the reference data to study the proposed hybrid system. Box-Behnken design was employed to perform a statistical analysis of numerical data and optimization of IBC. The IBC power output was calculated at a wide range of engine speeds and loads. . Results showed that up to 18 kW power can be generated from IBC at different operating conditions.