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A 1-Dimensional model was developed to simulate the performance of an automotive Air Conditioning (AC) system. Its architecture and validation with vehicle test data (over a wide range of environmental and engine load conditions) are presented in this paper. This study demonstrates the ability of a simplified AC model to capture real system phenomena. Its sensitivity and limitations are evaluated, along with its potential as a system design tool.

This paper describes the use of robust engineering in engine cooling system design. 1-D thermal-fluid network simulation software has been used in conjunction with statistical variation analysis software. It shows how we can increase the reliability of an automotive engine cooling system by considering the variations of all factors of design. Design of experiment (DOE) and Monte Carlo simulation techniques have been used to optimize the engine cooling system design.