Engine cooling by nucleate boiling requires a profound knowledge of cooling systems components: heat exchangers, water pumps, eventually liquid-vapor separators, on the part of equipment manufacturers. Experimental and theoretical studies of the principal heat exchanger, I.E., the vapor-condensor, were effected. The experimental phase required the development, after careful study, of a test set-ups specifically designed for vapor-condensors. Tests are conducted under controlled intake pressures and temperatures, and sub-cooled outlet conditions. Under varying air-flows, outlet-liquid measurements yield instructive information relative to exchanger thermic performance. The influence on performance of tube shape, direction of liquid circulation (horizontal or vertical) and number of passes was also studied. Concurrently, thermic visualization by infra-red camera permits qualitative evaluation of vapor distribution within the condenser. Thermic models based on exchange condensation theory permits comparisons between theoretical models and experimental results. We enunciate expected gains in performance and space-requirements due to the use of boiling liquid cooling systems.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Optimization of Nucleate Boiling Engine Cooling Systems - Condenser Study


    Additional title:

    Sae Technical Papers


    Contributors:
    Ap, N. S. (author) / Palier, P. (author) / Bouyer, Th. (author)

    Conference:

    International Congress & Exposition ; 1991



    Publication date :

    1991-02-01




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Optimization of nucleate boiling engine cooling systems - condenser study

    Palier,P. / Ap,N.S. / Bouyer,T. et al. | Automotive engineering | 1991


    Nucleate Boiling Engine Cooling System - Vehicle Study

    Pretscher, M. / Ap, N. S. | SAE Technical Papers | 1993


    Nucleate boiling engine cooling system - vehicle study

    Pretscher,M. / Ap,N.S. / Valeo,FR | Automotive engineering | 1993


    Nucleate boiling investigations using simulated engine cooling passages

    Campbell,N.A. / Hawley,J.G. / Tilley,D.G. et al. | Automotive engineering | 1999


    Nucleate boiling investigations using simulated engine cooling passages

    Campbell, N. A. F. / Hawley, J. G. / Tilley, D. G. et al. | British Library Conference Proceedings | 1999