Thermodynamic analysis of waste heat recovery using Organic Rankine Cycle (ORC) for a two-stroke low speed marine Diesel engine in IMO Tier II and Tier III operation

Lion, Simone; Taccani, Rodolfo; Vlaskos, Ioannis; Pietro, Scrocco; Vouvakos, Xenakis; Kaiktsis, Lambros

doi:10.1016/j.energy.2019.06.123

Cited by 60 publications

(16 citation statements)

References 28 publications

(30 reference statements)

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“…Therefore a total cost of production (TPC) analysis of the WHR system of the engine that generates exhaust gases through the different ORC configurations was performed. This analysis consists of estimating the total capital to be invested (TCI), as well as the operation and maintenance costs (O&M), as shown in Equation (6).…”

Section: Thermoeconomic Analysismentioning

confidence: 99%

“…However, the different waste heat recovery configurations based on ORC cycle should be studied to be optimized under a thermoeconomic point of view for a particular heat source. Lion et al [6] present a complete thermodynamic study of a Winterthur Gas & Diesel's marine diesel engine, which is alow-speed 6 MW of power, using Ricardo Wave simulation software (2018.1, Ricardo UK Ltd, United Kingdom). The model was validated by comparing the results with experimental data, an exhaust gas recirculation low-pressure architecture was implemented to measure engine performance within the framework of international maritime organization Tier III regulations, where the data obtained from the simulation were the inputs used in a thermodynamic model implemented in engineering equation solver, capable of quantifying the performance of the ORC, of evaluating the viability of the proposed system.…”

Section: Introductionmentioning

confidence: 99%

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Thermoeconomic Optimization with PSO Algorithm of Waste Heat Recovery Systems Based on Organic Rankine Cycle System for a Natural Gas Engine

2019

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To contribute to the economic viability of waste heat recovery systems application based on the organic Rankine cycle (ORC) under real operation condition of natural gas engines, this article presents a thermoeconomic optimization results using the particle swarm optimization (PSO) algorithm of a simple ORC (SORC), regenerative ORC (RORC), and double-stage ORC (DORC) integrated to a GE Jenbacher engine type 6, which have not been reported in the literature. Thermoeconomic modeling was proposed for the studied configurations to integrate the exergetic analysis with economic considerations, allowing to reduce the thermoeconomic indicators that most influence the cash flow of the project. The greatest opportunities for improvement were obtained for the DORC, where the results for maximizing net power allowed the maximum value of 99.52 kW, with 85% and 80% efficiencies in the pump and turbine, respectively, while the pinch point temperatures of the evaporator and condenser must be 35 and 16 °C. This study serves as a guide for future research focused on the thermoeconomic performance optimization of an ORC integrated into a natural gas engine.

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Section: Thermoeconomic Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Thermoeconomic Optimization with PSO Algorithm of Waste Heat Recovery Systems Based on Organic Rankine Cycle System for a Natural Gas Engine

2019

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“…Mathematics 2020, 8, x FOR PEER REVIEW 10 of 34 In the current study, the blade is not radially fibred. The blade distribution of blade angles is determined by the numerical integration of Equations (15) and (16), where is the meridional distance along the − contour, Figure 7. The coefficients to are summarized in Table 3.…”

Section: Shroud Hubmentioning

confidence: 99%

Generation of 3D Turbine Blades for Automotive Organic Rankine Cycles: Mathematical and Computational Perspectives

2020

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Organic Rankine cycle technology is gaining increasing interest as one of potent future waste heat recovery potential from internal combustion engines. The turbine is the component where power production takes place. Therefore, careful attention to the turbine design through mathematical and numerical simulations is required. As the rotor is the main component of the turbine, the generation of the 3D shape of the rotor blades and stator vanes is of great importance. Although several types of commercial software have been developed, such types are still expensive and time-consuming. In this study, detailed mathematical modelling was presented. To account for real gas properties, REFPROP software was used. Moreover, a detailed 3D CFD numerical analysis was presented to examine the nature of the flow after generating the 3D shapes of the turbine. Moreover, finite element analysis was performed using various types of materials to obtain best-fit material for the current application. As the turbine is part of a larger system (i.e., ORC system), the effects of its performance on the whole ORC system were discussed. The results showed that the flow was smooth with no recirculation at the design point except at the last part of the suction surface where strong vortices were noticed. Despite the strong vortices, the mathematical model proved to be an effective and fast tool for the generation of the 3D shapes of turbine blades and vanes. The deviations between the 1D mean-line and 3D CFD in turbine efficiency and power output were 2.28% and 5.10%, respectively.

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“…The results showed that the EGR-ORC combination has higher economic potential than the other options, as significant reductions at the temperature of the exhaust gas take place during the reactions on SCR systems. Lion et al 13 have also supported the idea of using emission reduction technologies combined with ORC systems. They developed a thermodynamic model of two scenarios (Tier II and Tier III configurations) for a tanker propelling with a 13.6-MW main engine and compared them with and without low-pressure EGR system.…”

Section: Introductionmentioning

confidence: 95%

Heat exchanger network design of an organic Rankine cycle integrated waste heat recovery system of a marine vessel using pinch point analysis

et al. 2020

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Thermodynamic analysis of waste heat recovery using Organic Rankine Cycle (ORC) for a two-stroke low speed marine Diesel engine in IMO Tier II and Tier III operation

Cited by 60 publications

References 28 publications

Thermoeconomic Optimization with PSO Algorithm of Waste Heat Recovery Systems Based on Organic Rankine Cycle System for a Natural Gas Engine

Thermoeconomic Optimization with PSO Algorithm of Waste Heat Recovery Systems Based on Organic Rankine Cycle System for a Natural Gas Engine

Generation of 3D Turbine Blades for Automotive Organic Rankine Cycles: Mathematical and Computational Perspectives

Heat exchanger network design of an organic Rankine cycle integrated waste heat recovery system of a marine vessel using pinch point analysis

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