Project Case Study
An airflow and thermal assessment of a diesel generator test room, examining fresh-air delivery, radiator cooling, hot-air exhaust and potential recirculation around the genset.
Equipment
DG test room
Mesh nodes
686,239
Mesh elements
3,747,403
Assessment
Airflow & thermal
Project summary
The study assessed whether fresh air reaches the radiator and engine as intended and whether heated air is exhausted without harmful recirculation onto the genset.
Results include airflow streamlines, 3D velocity and temperature renderings, and horizontal-plane contours through the DG set.
Equipment
Diesel generator (DG) set test room
Mesh type
Tetrahedral room and genset mesh
Mesh nodes
686,239
Mesh elements
3,747,403
Key sources
Engine heat flux and radiator fan
Evaluation outputs
Velocity streamlines, 3D volume results and horizontal-plane contours
01 / Context
HyperCurve Solutions Private Limited carried out a Computational Fluid Dynamics (CFD) study of a diesel generator (DG) set test room to assess ventilation airflow and thermal performance. The analysis examined whether fresh air reaches the radiator and engine as intended, and whether heated air is exhausted without harmful recirculation back onto the genset.
02 / Scope
The study focused on airflow through the test room, cooling-air delivery across the radiator and engine, exhaust flow, local recirculation and temperature distribution around the DG set. Velocity streamlines, volume renderings and representative plane sections were used to review the ventilation arrangement.
Model preparation
The model includes the room, DG set, radiator, inlet, outlet and exhaust fan. Engine heat flux and the radiator fan were identified as key sources for the airflow and thermal assessment.
Simulation setup
A tetrahedral mesh was generated for the room and genset, with local refinement around the DG set, radiator and inlet/outlet openings to better capture airflow near critical surfaces.
Mesh nodes
686,239
Mesh elements
3,747,403
Simulation results
Velocity streamlines and the three-dimensional velocity rendering show fresh air entering the room and moving through the radiator toward the exhaust. The report describes the resulting cooling airflow as adequate for the assessed setup.
The reported flow path brings incoming air through the radiator before it moves toward the exhaust.
Local recirculation is visible near walls and corners, but the report does not identify harmful backflow onto the genset.
The 3D velocity result provides another view of the airflow paths through the equipment room.
Thermal behaviour
The temperature volume rendering shows hotter air around the engine and radiator-fan discharge, with cooling as air travels toward the outlet. The report does not identify abnormal hot-spot build-up.
The main room is reported to have a broadly uniform temperature distribution.
A localised temperature rise appears downstream of the radiator fan, consistent with the expected hot-air discharge path described in the report.
Sectional review
Horizontal-plane velocity vectors and temperature contours provide a focused view of airflow and thermal behaviour through the DG set.
The report notes localised recirculation near the inlet corner, but it does not cause backflow onto the genset. The main room remains broadly uniform in temperature, with a localised rise downstream of the radiator fan.
Engineering interpretation
These findings summarise the supplied report's stated simulation results. They are not an independent validation of measured site performance.
01
The reported inlet, radiator and exhaust-fan arrangement provides airflow across the DG set and supports the intended cooling path.
02
Local recirculation near walls, corners and the inlet area is reported, but it does not return hot air onto the genset.
03
The main room shows a broadly uniform temperature distribution, with a localised rise downstream of the radiator fan as expected.
Based on the reported airflow and thermal analysis, the original report states that no design change was required for the intended DG capacity.
Project outputs
The study provides geometry, mesh and visual result outputs to review ventilation and thermal performance around the DG set.
Technical basis: the supplied DG Set Test Room CFD report. This page summarises the report's stated simulation results and does not claim independent validation or measured site performance.