Conceptual Design and Performance Analysis of an Exhaust Gas Waste Heat Recovery System for a 10000TEU Container Ship

Ma, Zheshu; Yang, Dong; Guo, Qiang

doi:10.2478/v10012-012-0012-8

Cited by 17 publications

(20 citation statements)

References 4 publications

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“…In spite of the lower temperature of the exhaust gas, steam-based Rankine cycles have also been proposed for application on two-stroke engines. Ma et al evaluated the part-load peformance of a single-pressure design (Ma et al, 2012). Dimopoulos et al proposed the thermo-economic optimisation of a steam-based WHR system for a containership powered by a two-stroke engine (Dimopoulos et al, 2011(Dimopoulos et al, , 2012.…”

Section: Introductionmentioning

confidence: 99%

Comparison of different procedures for the optimisation of a combined Diesel engine and organic Rankine cycle system based on ship operational profile

2015

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At a time of strong challenges in relation to economic and environmental performance, the potential of waste heat recovery for ships fuel consumption has proved a considerable potential. This paper presents the comparison of four different procedures for the optimisation of an organic Rankine cycle based on an increasing level of accounting of the ship operational profile and on the inclusion of engine control parameters to the optimisation procedure. Measured data from 2 years of operations of a chemical tanker are used for the application of the different procedures. The results suggest that for the investigated case study the application of a optimisation procedure which takes the operational profile into account can increase the savings of the installation of an organic Rankine cycle from 2.8% to 11.4% of the original yearly fuel consumption. The results of this study further suggest that i. simulating the part-load behavior of the ORC is important to insure its correct operations at low engine load and ii. allowing the engine control strategy to be part of the optimisation procedure leads to larger fuel savings than the optimisation of the waste recovery system alone.

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Section: Introductionmentioning

confidence: 99%

Comparison of different procedures for the optimisation of a combined Diesel engine and organic Rankine cycle system based on ship operational profile

2015

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“…Ma et al proposed and evaluated a singlepressure system, both in design conditions and at part-load (Ma et al, 2012). Ma et al proposed and evaluated a singlepressure system, both in design conditions and at part-load (Ma et al, 2012).…”

Section: The Application Of Organic Rankine Cycles For Waste Heat Recmentioning

confidence: 99%

Organic Rankine Cycle systems for large-scale waste heat recovery to produce electricity

Tian

Shu

2017

Organic Rankine Cycle (ORC) Power Systems

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“…According to MAN Diesel & Turbo [2], the combined power turbine and dual pressure SRC system enables a 11.6% increase of the engine efficiency at full load. The results presented by Ma et al [3] indicated an engine efficiency increase from 48.5% to 53.8% when installing a single pressure SRC unit in combination with a power turbine unit. Benvenuto et al [4] suggested an alternative design of the dual pressure SRC unit and demonstrated 34% higher electricity generation at design (SRC stand-alone unit) compared to the dual pressure SRC system design typically used in industry.…”

Section: Introductionmentioning

confidence: 98%

A Comparison of Organic and Steam Rankine Cycle Power Systems for Waste Heat Recovery on Large Ships

2017

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This paper presents a comparison of the conventional dual pressure steam Rankine cycle process and the organic Rankine cycle process for marine engine waste heat recovery. The comparison was based on a container vessel, and results are presented for a high-sulfur (3 wt %) and low-sulfur (0.5 wt %) fuel case. The processes were compared based on their off-design performance for diesel engine loads in the range between 25% and 100%. The fluids considered in the organic Rankine cycle process were MM(hexamethyldisiloxane), toluene, n-pentane, i-pentane and c-pentane. The results of the comparison indicate that the net power output of the steam Rankine cycle process is higher at high engine loads, while the performance of the organic Rankine cycle units is higher at lower loads. Preliminary turbine design considerations suggest that higher turbine efficiencies can be obtained for the ORC unit turbines compared to the steam turbines. When the efficiency of the c-pentane turbine was allowed to be 10% points larger than the steam turbine efficiency, the organic Rankine cycle unit reaches higher net power outputs than the steam Rankine cycle unit at all engine loads for the low-sulfur fuel case. The net power production from the waste heat recovery units is generally higher for the low-sulfur fuel case. The steam Rankine cycle unit produces 18% more power at design compared to the high-sulfur fuel case, while the organic Rankine cycle unit using MM produces 33% more power.

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Conceptual Design and Performance Analysis of an Exhaust Gas Waste Heat Recovery System for a 10000TEU Container Ship

Abstract: According to operation characteristics of the main engine 9K98ME-C7, a combined turbines-exhaust gas waste heat recovery system is proposed to recover waste heat and increase system energy efficiency.

Cited by 17 publications

References 4 publications

Comparison of different procedures for the optimisation of a combined Diesel engine and organic Rankine cycle system based on ship operational profile

Comparison of different procedures for the optimisation of a combined Diesel engine and organic Rankine cycle system based on ship operational profile

Organic Rankine Cycle systems for large-scale waste heat recovery to produce electricity

A Comparison of Organic and Steam Rankine Cycle Power Systems for Waste Heat Recovery on Large Ships

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