Browse Publications Technical Papers 2018-28-0013

Design Optimization of Engine Cooling Unit Packaging For Commercial Vehicle 2018-28-0013

Abstract An engine cooling system is required to maintain stable operating temperature for the engine and it prevents overheating. Thermal distortion of engine parts can take place if proper cooling is not maintained and engine may seize. Many vehicle manufacturing units are facing common problems to incorporate separate cooling systems for the different variants of engines (different power rating). A single optimized cooling unit is required to manage the entire range of engine rated power. On road cooling trials have been conducted to minimize the issue. The factors that affect the cooling system are front end grill opening area, air recirculation, location of snorkel inlet, fan diameter, radiator and intercooler core size; these need to be tuned to get appropriate results. Through virtual analyses, the above parameters are tuned to obtain appropriate results using the Computational Fluid Dynamics (CFD) approach. In the next stage, on road cooling trials are performed and real time data is collected. A correlation is established between physical trials and CFD results which may be helpful in future projects as well. Optimized relations are obtained which satisfy the cooling requirement for range of engine variants. These analyses provide sufficient temperature drop in both heat exchangers (radiator and intercooler) and efficient heat rejection is made possible through the heat exchanger to maintain proper functioning temperature of engine. All trials are performed at extreme conditions i.e., full throttle, 100% load and high gradient conditions, to obtain maximum possible heat rejection to coolant fluid. Key words: Cooling trials, radiator, intercooler, snorkel, front end grill opening area, sealing, CFD


Subscribers can view annotate, and download all of SAE's content. Learn More »


Attention: This item is not yet published. Pre-Order to be notified, via email, when it becomes available.
Members save up to 43% off list price.
Login to see discount.
Special Offer: Purchase more aerospace standards and aerospace material specifications and save! AeroPaks off a customized subscription plan that lets you pay for just the documents that you need, when you need them.