Increasing energy efficiency in passenger ships by novel energy conservation measures

ABSTRACT To achieve increasing emission requirements, the cruise ship industry is working to develop higher efficiency ships. Cruise ships are different from other ship types in their relatively higher consumption of electrical power, steam and hot water. Several novel high-efficiency system concepts are possible for on-board electrical power generation and other utility services, each with differing impacts and first costs. Low-emission concepts novel to the cruise ship industry include combinations of exhaust gas heat recovery, heat pumps, steam turbines and organic Rankine cycles (ORCs). Yet, evaluation of these concepts is difficult given the different operating modes of cruises, and overall efficiency is dependent on the dynamic operational sequences. In this paper, we compare alternative energy efficiency concepts for cruise ships through simulation studies of the ship operations when equipped with different novel power generation systems. We find that the dual pressure steam systems and ORC offer the greatest potential for energy efficiency improvements in the cruise ship industry. We also find that relatively conventional technologies enable cruise ships to comply with planned upcoming higher ship energy efficiency requirements.

[1]  Peilin Zhou,et al.  Analysis by computer simulation of a combined gas turbine and steam turbine (COGAS) system for marine propulsion , 2003 .

[2]  Jian Song,et al.  Thermodynamic analysis and performance optimization of an Organic Rankine Cycle (ORC) waste heat recovery system for marine diesel engines , 2015 .

[3]  Ian Jenkinson,et al.  A proposed methodology for assessing the reduction of a seafarer’s performance with insufficient recuperative rest , 2013 .

[4]  Fredrik Haglind,et al.  Design and modeling of an advanced marine machinery system including waste heat recovery and removal of sulphur oxides , 2013 .

[5]  E. Sofras,et al.  Developing a new methodology for evaluating diesel—electric propulsion , 2014 .

[6]  Vincent Lemort,et al.  Techno-economic survey of Organic Rankine Cycle (ORC) systems , 2013 .

[7]  Z Bazari.  Ship energy performance benchmarking/rating: methodology and application , 2007 .

[8]  Jinyue Yan,et al.  Exergy and Pinch Analysis of Diesel Engine Bottoming Cycles with Ammonia-Water Mixtures as Working Fluid , 2000 .

[9]  Gequn Shu,et al.  A review of waste heat recovery on two-stroke IC engine aboard ships , 2013 .

[10]  Christos A. Frangopoulos,et al.  Synthesis, design and operation optimization of a marine energy system , 2008 .

[11]  G Benvenuto,et al.  Comparison of ship plant layouts for power and propulsion systems with energy recovery , 2014 .

[12]  Marek Dzida.  On the possible increasing of efficiency of ship power plant with the system combined of marine diesel engine, gas turbine and steam turbine, at the main engine - steam turbine mode of cooperation , 2009 .

[13]  Rajoo Balaji,et al.  An analysis of shipboard waste heat availability for ballast water treatment , 2012 .

[14]  Fredrik Haglind,et al.  Design and optimisation of organic Rankine cycles for waste heat recovery in marine applications using the principles of natural selection , 2013 .

[15]  Eur Ing,et al.  On certain peculiarities in the simulation of marine power plants , 2013 .