PRELIMINARY DESIGN AND DEVELOPMENT OF THE 1962 GENERAL MOTORS AUTOMOTIVE AIR CONDITIONING COMPRESSOR

1962 ◽  
Author(s):  
William K. Steinhagen ◽  
Donald C. Unger
Author(s):  
R J Fowler

This paper describes in detail the original methods used in the design and development of a microprocessor-based climate control system for the XJ40 Jaguar car. It takes the concept of air conditioning and applies modern technology and materials to produce a unit for a new passenger car. It describes those areas of design where experience in automotive air conditioning has shown the need for improvement, and also explains the operational procedures. The theories presented can be used in any automotive application and lead through concept and development to a final design implementation.


Author(s):  
Atul Bajpai

AbstractAn expert system approach for designing air-conditioning systems for cars and trucks is presented. A brief introduction to the automotive application of the vapor-compression refrigeration cycle is provided as general background. The method presented uses an integrated approach combining the power of conventional analysis programs, databases and model-based expert system technology. Some sample rules from the knowledge base have been included in the paper to illustrate the application of the domain knowledge and its interaction with algorithmic programs. The system architecture is very open and modular, and it lends itself to easy modifications and future expansions. Possibilities for system enhancements are also outlined in the paper. The approach presented in this paper provides substantial benefits to the automotive air-conditioning design engineer particularly in the early stages of new vehicle platform planning and development. A pilot system has been successfully tested at General Motors for preliminary design of automotive air-conditioning systems.


2016 ◽  
Vol 819 ◽  
pp. 202-206
Author(s):  
Reza Maziar ◽  
Kasni Sumeru ◽  
M.Y. Senawi ◽  
Farid Nasir Ani

In this study, two experiments were performed, one with the conventional compression refrigeration cycle (CRC) and the other with an ejector refrigeration cycle (ERC). The CRC system for automotive air conditioning was designed, fabricated and experiments were conducted. The system was then retrofitted with an ejector as the expansion device and experiments were repeated for the ERC system. Calculations of the entrainment ratio, compressor compression ratio and coefficient of performance (COP) were made for each cycle. The calculations showed that ERC has some advantages over the CRC. In this study, an average improvement of 5% in COP has been obtained for the ERC compared with the CRC.


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