CFD study for optimized cooling performance Influence on cooling performance of a diesel generator from using a stator
Typ
Examensarbete för masterexamen
Program
Publicerad
2022
Författare
Lago, Caspian
Haidari, Mohamed Hadi
Modellbyggare
Tidskriftstitel
ISSN
Volymtitel
Utgivare
Sammanfattning
Almost every part of society relies on electricity, ranging from hospitals, supermar kets and construction sites. This dependency means that electric generators are nec essary to provide electrical power during power outages and at off-grid sites. Diesel
generators are by far the most common type of generator and providing high effi ciency power generation engines are important for keeping emissions and operating
costs at a minimum. The thesis will investigate if adding a stator to the cooling sys tem of the Volvo Penta D16 GENSET engine can help improve cooling performance.
The D16 GENSET engines are stationary units that lack the ram effect of air to
aid with cooling. This puts a high demand on the engine’s cooling system that
uses a significant part of the available output power. A single axial fan produces
the airflow required for cooling purposes resulting in an uneven distribution of the
airflow over the radiator. The project focuses on how the distribution of airflow over
the radiator can be improved by adding a stator between the fan and the radiator.
Five stators with different meridional designs are evaluated, all stators are designed
using the turbomachinery design program TURBOdesign suite. The CFD program
STAR-CCM+ is used to simulate the flow over the radiator for the different stator
cases. To determine if the stators can improve the amount of heat transferred away
from the engine the airflow across the radiator and the temperature of the engine
coolant is evaluated.
Beskrivning
Ämne/nyckelord
Axial fan, heat exchanger, stator design, rotor-stator interaction, cooling performance, STAR-CCM+.