斯特林发动机
有机朗肯循环
热能储存
汽车工程
热能
余热
巡航
工程类
储能
能源消耗
海洋工程
环境科学
工艺工程
机械工程
功率(物理)
电气工程
航空航天工程
物理
热交换器
生物
量子力学
生态学
作者
Francesco Catapano,Andrea Frazzica,Angelo Freni,Marco Manzan,Diego Micheli,Valeria Palomba,Paolo Sementa,Bianca Maria Vaglieco
出处
期刊:Applied Energy
[Elsevier]
日期:2022-04-01
卷期号:311: 118673-118673
被引量:22
标识
DOI:10.1016/j.apenergy.2022.118673
摘要
This paper focuses on an advanced energy system, able to increase the overall efficiency of ships by recovering the heat wasted by the propulsion system. A small-scale prototype has been realized, developed, and tested under realistic operating conditions of boat during a winter and summer cruise. The main novelty of the research that has been presented in this paper lies in a significant contribution by developing an integrated dynamic device for electrical production and thermal energy storage. It is based on a 1000 cm3 light duty compression ignition engine coupled with a properly adapted Stirling Engine (SE), an Organic Rankine Cycle group (ORC) and a latent Thermal Energy Storage system (TES). All the components have been managed by means of a specifically developed electronic control, simulating two standard cruise profiles. Scaled engine power data have been imposed to simulate port, manoeuvring and open sea navigation phases. The consumption of hot water has been obtained by considering the typical hourly use profile of a cruise ship. It has been demonstrated that the proposed integrated system allows recovering all the thermal energy needed to satisfy the hot water request during the cruise, avoiding the use of auxiliary boilers. The results indicate a favourable effect because the recovered thermal energy represents the 7.7 % of the total energy consumed by fuel. The net electrical energy generated by ORC and Stirling engine resulted to be about 1 % of the total fuel energy consumption, respectively 0.8 % and 0.2 %. The developed prototype can be a useful tool in viability analysis and can easily be reproduced for several uses. In conclusion, the integration of different systems with an optimal integration and sizing of the thermal energy storage considerably improve the thermodynamic, economic and environmental results for future clean ships.
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