The Effect of Water Flow Rate on the Effectiveness of the Mitsubishi Fuso 6D Engine Radiator

Abstract

This study aims to analyze the effect of water flow rate on the cooling effectiveness of a radiator using the MITSUBISHI FUSO 6D14 engine. Data were collected at various engine speeds (1000–3000 rpm) and water flow rates (0.011–0.033 m³/min). Measurements were conducted using a Radiator Tester with an initial temperature of 60°C and a reference temperature ranging from 70°C to 75°C. The results indicate that higher engine speeds lead to greater water flow rates, thereby enhancing the radiator's cooling effectiveness. Heat absorption is more optimal in turbulent flow compared to laminar flow, accelerating heat transfer between the fluid and pipe walls. Radiator effectiveness showed a significant increase within the first five minutes and tended to stabilize after 30 minutes of holding time. This study has limitations, such as focusing only on the MITSUBISHI FUSO 6D14 engine without load, a maximum operating temperature of 93°C, and certain parameters that were not considered. Nevertheless, this research provides valuable insights for optimizing vehicle radiator cooling systems.