Advanced Cooling Systems for Agricultural and Industrial Machines.

摘要

The report describes a number of major modifications and alterations to present engine cooling systems for agricultural and industrial machines. Four categories of cooling system modifications were investigated;passive augmentation of standard heat exchanger cores (packed-beds,gas/solid suspensions,and spray cooling);active augmentation of standard cores, (surface scrapers,acoustic vibrations,and electric fields);new types of cooling arrangements (direct contact heat exchangers,pressurization of cooling air,and vaporization and condensation of engine coolant);and,utilization of waste heat (absorption air-conditioning systems). An extensive literature survey of heat transfer augmentation was carried out to provide the necessary data for evaluation of augmentation schemes.