Application Research Of New Energy In The Ship

As the shortage of fossil fuels and harmful pollutants emission become increasinglyserious, energy conservation has become a topic which is concerned by the whole country.Shipping industry also pay much attention to skimp on fuel and reduce harmful emission. Inthis case, new energy, especially solar energy and wind energy used in the ship, has causedgreat concern. Use of Solar and wind energy can reduce a certain amount of fuel consumptionand decrease CO2and other pollutants emission.MEPC continue to strengthen specification and standard of Energy Efficiency DesignIndex for new ships, but the factor f_{eff（i）}is not clearly defined. New energy-saving coefficientis mainly analyzed in this thesis. The change of f_{eff（i）}with latitude, month, time and slopeangle for the solar energy applied in ship was analyzed and discussed; the different oflatitude,wind direction and wind frequency impact on the change of new energy-savingfactor f_{eff（i）}for wind energy applied in the ship was also discussed.Waste heat recovery system equipped on the diesel engine in ship can effectively reducefuel consumption and pollutant emission, and it is also the main method to save energy at thepresent stage. In this thesis, thermodynamic calculation models of the waste heat recoverysystem of diesel engine are established. The calculation results showed that the exergy anlysiswas more scientific and effective than the thermal equilibrium. Waste heat recovery systemequipped after main diesel could improve exergy efficiency of the whole system. Theapplication of solar and wind energy in the ship also could reduce fuel consumption andpollutant emission, and tt can be seen that better energy saving effect and higher investmentreturn are provided with wind energy than the solar energy in this thsis.