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Introduction (problem statement and relevance). At low vehicle driving speeds, when the ram airfl ow is minimal or completely absent, the airfl ow created by the radiator fan is of high importance for the heat removal. In this paper, the airfl ow through the radiator created by the radiator fan was used as a criterion of the heat removal effi ciency, which is calculated from the pressure drop in the radiator for various fan speeds. The possibility of increasing the airfl ow through the radiator by increasing the distance between the fan and the radiator through improvement of the casing design was considered.The purpose of the study is to analyze the infl uence of the radiator casing design on the heat removal effi ciency of the cooling system radiator.Methodology and research methods. The static pressure created at diff erent fan speeds was defi ned at the radiator inlet and outlet in 32 points (16 on each side) using the air pressure probes. The pressure readings were recorded using a 64-channel pressure scanner.Scientifi c novelty and results. The paper deals with research into the infl uence of the distance between the fan and the cooling system radiator surface on the heat removal effi ciency by increasing of the airfl ow through the cooling system radiator. The results of the experiment to determine the optimal distance between the radiator and the fan for various rotational speeds are presented.Practical signifi cance. The value of the distance between the fan and the radiator was determined, which makes it possible to achieve an increase in the airfl ow through the radiator due to more uniform distribution of the airfl ow created by the fan mounted on the radiator casing over the radiator surface |
