Diesel engines on board of fishing trawlers produce significant quantities of heat. About 20% of the fuel energy is recoverable from the exhaust gases at temperatures of 320 to 400 deg. C and about 30 % of the fuel energy is recoverable from the jacket coolant system at a temperature level of 75 to 100 deg. C. On board of fishing vessels there is a need for refrigeration. Rapid freezing requires low evaporating temperatures in the equipment used, generally plate freezers and air coolers in the related freezing stores. The evaporating temperature can then be as low as -55 deg. C. At this evaporating temperature and heat rejection to the sea water, single stage absorption cycles can only be driven by the hot exhaust gases and have very low COP's. The paper investigates the possibilities of a two stage absorption resorption cycle to make optimal use of the recoverable heat available at the two different temperature levels. The paper gives a comparison between model results for the cooling capacity obtainable under different operating conditions for both single and two stage cycles. The two stage option delivers approximately a 25 % larger cooling capacity.


    Zugriff

    Zugriff über TIB

    Verfügbarkeit in meiner Bibliothek prüfen


    Exportieren, teilen und zitieren



    Titel :

    Absorption resorption cycle for heat recovery of diesel engines exhaust and jacket heat


    Beteiligte:


    Erscheinungsdatum :

    2008


    Format / Umfang :

    8 Seiten, 9 Bilder, 2 Tabellen, 4 Quellen


    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    Exhaust heat recovery for smaller engines

    Bowman,GB | Kraftfahrwesen | 1986


    Waste heat recovery from diesel engines

    Bjoerkvist,T. / Nahab Diesel,SE | Kraftfahrwesen | 1986


    Waste heat recovery from diesel engines

    Bjoerkrist, T. | Tema Archiv | 1986


    Optimization of waste heat recovery from the exhaust gas of marine diesel engines

    Benvenuto, Giovanni / Trucco, Alessandro / Campora, Ugo | SAGE Publications | 2016