A review of emissions reduction technologies for low and medium speed marine Diesel engines and their potential for waste heat recovery

Lion, Simone; Vlaskos, Ioannis; Taccani, Rodolfo

doi:10.1016/j.enconman.2020.112553

Cited by 161 publications

(62 citation statements)

References 60 publications

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“…Перспективы использования вторичных энергетических ресурсов и технические средства для реализации данного ресурса повышения энергоэффективности рассмотрены в работах [11]- [15]. Основными источниками вторичных энергетических ресурсов являются: теплота, отводимая отработавшими газами; теплота, отводимая от надувочного воздуха; теплота, отводимая теплоносителем системы охлаждения [16]. Совершенствование рабочих процессов судовых дизелей с целью повышения их энергоэффективности связывают также с когенерационными циклами, такими как органический цикл Ренкина [17]- [20], в котором может использоваться как вода из системы охлаждения дизеля, так и специальные теплоносители.…”

Section: методы и материалы (Methods and Materials)unclassified

Classification of Modern Methods for Improving the Working Process of Marine Diesel Engine

Erofeev¹,

Zhukov²,

Chernyi³

2020

Vestnik GUMRF imeni admirala S. O. Makarova

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An analytical review of the main methods for improving the working process of marine diesel engines, with a method for their systematization and grouping is provided in the paper. The issue of modern methods and ways of improving the criteria for environmental friendliness, economy and energy efficiency of a diesel engine as the main ship power plant, taking into account the requirements of the MARPOL 73/78 convention, as well as compliance with the Register rules, has been studied. Based on the analysis performed, a block diagram of methods for improving the working process of a marine diesel engine is presented. The proposed block diagram makes it possible for the user to easily select the method of interest for modernizing the operation of the ship power plant, with its further detailed study. The object of scientific research is methods of improving the working process of marine diesel engines. The purpose of the research is: analysis of both basic and modern methods of modernization of the working process of the marine diesel engine, with the further possibility of their systematization and grouping in the form of a structural diagram; implementation of the collected and analyzed information in the form of the structural diagram of methods for modernizing the working process of the marine diesel engine. The research of both modern approaches and basic methods of modernization of the working process of the marine diesel engine is carried out by an analytical method followed by implementation into the block-diagram. A block diagram of the classification of modern methods for improving the working process of marine diesel engines is obtained. The results obtained allow us to conclude that the proposed block diagram makes it possible for the user to easily select the method of interest for modernization of the ship power plant operation with its further detailed study. There are uniqueness and novelty of the block diagram associated with the use of new topical methods for improving the diesel engine.

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Section: методы и материалы (Methods and Materials)unclassified

Classification of Modern Methods for Improving the Working Process of Marine Diesel Engine

Erofeev¹,

Zhukov²,

Chernyi³

2020

Vestnik GUMRF imeni admirala S. O. Makarova

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“…The TOPSIS decision making is used in the present study. In order to achieve the optimal operating parameters more reasonably, all candidate points of Π 1 and Π 2 are normalized between 0.05 and 0.95 with Equations (12) and (13), respectively.…”

Section: Objective Functions and Decision Makingmentioning

confidence: 99%

“…Because electricity is convenient to use and store, thermal power cycles for WHR have been widely studied. organic Rankine cycle (ORC) system, uniquely suited for WHR and power generation from low and high temperature heat sources, is regarded as one of the most promising technologies [12,13]. With respect to ORC system researches, efforts are mainly focused on three topics: working fluid (WF) selection [14,15], heat and cold source (e.g., solar, industrial waste heat, geothermal, seawater and LNG cold) [16,17] and system configuration [18,19].…”

Section: Introductionmentioning

confidence: 99%

Multi-Objective Thermo-Economic Optimization of a Combined Organic Rankine Cycle (ORC) System Based on Waste Heat of Dual Fuel Marine Engine and LNG Cold Energy Recovery

et al. 2020

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In this paper, a combined organic Rankine cycle (ORC) system that can effectively utilize the cold energy of Liquefied Nature Gas (LNG) and the waste heat of dual fuel (DF) marine engine was proposed. Particularly, the engine exhaust gas and the jacket cooling water of the DF marine engine were used as heat sources. Firstly, a thorough assessment of thermo-economic performance was conducted for the combined ORC system using 11 environmentally friendly working fluids (WFs). Afterwards, the effects of evaporation and condensation pressures on the net output work, energy efficiency, exergy efficiency, total investment cost and payback period were examined. Furthermore, the thermo-economic performances of the ORC system were optimized via multi-objective optimization with a genetic algorithm. Finally, exergy destructions and investment costs of each component under the optimal operating conditions were analyzed to make suggestions for further improvement. The results show that R1150-R1234yf-R600a and R170-R1270-R152a are the two most promising WF combinations. The exergy destruction of the combined ORC system mainly exists in heat exchangers. Through WF optimization, the exergy destruction in the intermediate heat exchanger was reduced by 18.99%. The proportion of expanders investment cost could be greater than 50% and the payback period of the combined ORC system varies in the range of 7.68–9.43 years. This study demonstrated that the selection of WF and the optimization of operating conditions had important potential to improve thermo-economic performances of ORC systems.

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“…According to the available literatures, HRSG modeling of a cogeneration plant are performed with different approaches including energy modeling, [27][28][29] energy and exergy modeling, 30,31 exergo-economic modeling, 8,10,18,21 energy-economic modeling, 32,33 and the major prime movers used in cogeneration or CHP systems such as gas turbine 8,10,34,35 or diesel engine. 32,[36][37][38][39][40][41][42] Accordingly, the comprehensive modeling and optimization of fire tube HRSG in energy, exergy, and economic aspects for a gas microturbine cogeneration plant were not found in open literature. Although the design procedure for water and fire tube HRSGs are almost similar and the only difference returns to different heat transfer coefficients, but the main focus of research activities is on water tube HRSGs for their wide usage in CCPP.…”

Section: Application Of Hrsg In Novel Cyclesmentioning

confidence: 99%

“…According to the available literatures, HRSG modeling of a cogeneration plant are performed with different approaches including energy modeling, 27‐29 energy and exergy modeling, 30,31 exergo‐economic modeling, 8,10,18,21 energy‐economic modeling, 32,33 and the major prime movers used in cogeneration or CHP systems such as gas turbine 8,10,34,35 or diesel engine 32,36‐42 . Accordingly, the comprehensive modeling and optimization of fire tube HRSG in energy, exergy, and economic aspects for a gas microturbine cogeneration plant were not found in open literature.…”

Section: Introductionmentioning

confidence: 99%

Modeling and optimization of finless and finned tube heat recovery steam generators for cogeneration plants

Ghaffari

Ahmadi

Eyvazkhani

2020

Engineering Reports

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This article aims to model and optimize the fire tube Heat Recovery Steam Generator (HRSG) used in a gas microturbine cogeneration of heat and power system. Here, six cases including a finless and finned tube (solid and serrated) HRSGs with the inline and staggered arrangements are optimized and compared using techno-economic assessment. Optimization of HRSG was carried out by applying two objective functions of minimizing the total annual cost as well as maximizing the exergy efficiency. Nondominated Sorting Genetic Algorithm II is used to find out the optimal values of design variables. The TOPSIS decision-making process is employed to choose the optimum point of the Pareto front. A 600 kW gas microturbine cogeneration plant is considered as a case study. The results revealed that the finless tube HRSG with an inline arrangement has the lower pinch and approach temperatures (3.5 • C and 3.1 • C, respectively), the higher steam mass flow rate (12.7%), the lower total annual cost (64 096$/year), and the higher exergy efficiency (60.6%). It is also found that using the staggered arrangement tube banks along with the solid fins in HRSG leads the total annual cost, the steam mass flow rate, and exergy efficiency increase up to 41.6%, 100%, and 12.6%, respectively. This means that the thermodynamic performance improvement will compensate the total annual cost increment. Furthermore, it is demonstrated that HRSG with solid fins and staggered arrangement with total annual costs of (90 810$/year), exergy efficiency of (73.2%), and steam mass flow rate of (4680 kg/h) has the best performance in comparison with other finned tube cases. K E Y W O R D S cogeneration of heat and power systems, gas microturbine, genetic algorithm, heat recovery steam generator, inline and staggered arrangement, multiobjective optimization 1 INTRODUCTION In combined heat and power (CHP) systems, the prime mover waste heat is recovered to produce hot water/steam for heating or power generation. Heat recovery along with power generation, increases the efficiency of CHP systems up to This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

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A review of emissions reduction technologies for low and medium speed marine Diesel engines and their potential for waste heat recovery

Cited by 161 publications

References 60 publications

Classification of Modern Methods for Improving the Working Process of Marine Diesel Engine

Classification of Modern Methods for Improving the Working Process of Marine Diesel Engine

Multi-Objective Thermo-Economic Optimization of a Combined Organic Rankine Cycle (ORC) System Based on Waste Heat of Dual Fuel Marine Engine and LNG Cold Energy Recovery

Modeling and optimization of finless and finned tube heat recovery steam generators for cogeneration plants

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