Annotated Bibliography
This study focused on the methods of improving a turbocharger’s efficiency at low engine RPMs through the use of steam. Other methods of increasing turbocharging efficiency include two-stage turbos and electrically assisted turbos; however, steam was determined to be the most efficient. The authors determined that by injecting steam into the turbine rather than exhaust gases at low RPMs, engine performance “can be increased by 25.0% over the exhaust turbocharging engine…” The test were conducted using mathematical equations and simulations run through the GT-power simulations program. The seven authors of this article are thoroughly qualified to research this topic. All of the authors are researchers and professors at Hunan University in China, working …show more content…
Regenerative braking is the process of capturing the kinetic energy of the vehicle and converting it into electrical energy to power and electric motor or charge a battery. According to the authors’ experiment, the addition of regenerative braking can achieve a fourteen percent fuel savings (Silva). Fuel cut is a system that stops fuel injection while slowing down, and can achieve a ten percent decrease in fuel consumption and carbon dioxide emissions (Silva). Engine stop/start is a simple concept: when the vehicle is stopped for a time at a stop light or a traffic jam, the engine shuts off, stopping all fuel consumption and emission release. Engine downsizing and turbocharging is perhaps the most encompassing of all of the previous solutions. The overall size of the engine is decreased and a turbocharger is added, allowing for the same or sometimes more power and torque to be produced and lowering fuel consumptions and
This study focused on the methods of improving a turbocharger’s efficiency at low engine RPMs through the use of steam. Other methods of increasing turbocharging efficiency include two-stage turbos and electrically assisted turbos; however, steam was determined to be the most efficient. The authors determined that by injecting steam into the turbine rather than exhaust gases at low RPMs, engine performance “can be increased by 25.0% over the exhaust turbocharging engine…” The test were conducted using mathematical equations and simulations run through the GT-power simulations program. The seven authors of this article are thoroughly qualified to research this topic. All of the authors are researchers and professors at Hunan University in China, working …show more content…
Regenerative braking is the process of capturing the kinetic energy of the vehicle and converting it into electrical energy to power and electric motor or charge a battery. According to the authors’ experiment, the addition of regenerative braking can achieve a fourteen percent fuel savings (Silva). Fuel cut is a system that stops fuel injection while slowing down, and can achieve a ten percent decrease in fuel consumption and carbon dioxide emissions (Silva). Engine stop/start is a simple concept: when the vehicle is stopped for a time at a stop light or a traffic jam, the engine shuts off, stopping all fuel consumption and emission release. Engine downsizing and turbocharging is perhaps the most encompassing of all of the previous solutions. The overall size of the engine is decreased and a turbocharger is added, allowing for the same or sometimes more power and torque to be produced and lowering fuel consumptions and