Improvement of exhaust gas heat recovery from marine diesel engines

Benvenuto, G.; Trucco, Alessandro; Campora, Ugo

doi:10.1201/b15813-73

Cited by 2 publications

(14 citation statements)

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“…As shown in recent literature 1,2,3,4 an increase in the diesel engine energy conversion efficiency can be achieved recovering part of this wasted thermal energy through Waste Heat Recovery (WHR) dedicated devices. In a previous study 4 the authors optimized and compared between them some different Thermo Efficiency Systems (TES as indicated by MAN Diesel & Turbo), able to recover part of the exhaust gas thermal energy of a two-stroke marine diesel engine, by means of a steam plant and, in some of them, also with the assistance of a gas turbine.…”

Section: Introductionmentioning

confidence: 95%

“…Both solutions have been analysed, optimized and compared by simulation codes. 4 The first is a typical steam plant layout, based on a two pressure levels Heat Recovery Steam Generator (HRSG), similar to that proposed by Aalborg. 3 The steam plant is part of the WHR system whose scheme is presented in Fig 1. The diesel engine hot gases supply two groups of gas turbines in parallel: the turbocharging set (turbo charger in Fig 1) and a gas turbine (EGT, gas turbine in Fig 1) for power production.…”

Section: Considered Whr Steam Plantsmentioning

confidence: 99%

“…This is characterised primarily by the steam plant subsystem, for which two different configurations have been tested and compared: the typical one, adopted by some diesel engine manufacturers, and that proposed by the authors. 4 The developed numerical methodology, aimed to optimize the propulsion and power plant layout for a ship of known characteristics, has been applied to a crude oil tanker ship, belonging to the Premuda Company, whose characteristics are given later in the paper.…”

Section: G Benvenuto Full Professor University Of Genoa -Diten Itamentioning

confidence: 99%

“…In a previous study 4 the authors optimized and compared between them some different Thermo Efficiency Systems (TES as indicated by MAN Diesel & Turbo), able to recover part of the exhaust gas thermal energy of a two-stroke marine diesel engine, by means of a steam plant and, in some of them, also with the assistance of a gas turbine.…”

Section: Introductionmentioning

confidence: 99%

“…In the aforementioned study 4 the TES plants optimization was focused on the advantage of better energy conversion…”

Section: Introductionmentioning

confidence: 99%

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Comparison of ship plant layouts for power and propulsion systems with energy recovery

Benvenuto

Campora

Trucco

2014

Journal of Marine Engineering & Technology

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Section: Introductionmentioning

confidence: 95%

Section: Considered Whr Steam Plantsmentioning

confidence: 99%

Section: G Benvenuto Full Professor University Of Genoa -Diten Itamentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…In the aforementioned study 4 the TES plants optimization was focused on the advantage of better energy conversion…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Comparison of ship plant layouts for power and propulsion systems with energy recovery

Benvenuto

Campora

Trucco

2014

Journal of Marine Engineering & Technology

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Waste Heat Recovery from Marine Gas Turbines and Diesel Engines

et al. 2017

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Abstract:The paper presents the main results of a research project directed to the development of mathematical models for the design and simulation of combined Gas Turbine-Steam or Diesel-Steam plants for marine applications. The goal is to increase the energy conversion efficiency of both gas turbines and diesel engines, adopted in ship propulsion systems, by recovering part of the thermal energy contained in the exhaust gases through Waste Heat Recovery (WHR) dedicated installations. The developed models are used to identify the best configuration of the combined plants in order to optimize, for the different applications, the steam plant layout and the performance of WHR plant components. This research activity has allowed to obtain significant improvements in terms of energy conversion efficiency, but also on other important issues: dimensions and weights of the installations, ship load capacity, environmental compatibility, investment and operating costs. In particular, the main results of the present study can be summarized as follows: (a) the quantitative assessment of the advantages (and limits) deriving by the application of a Combined Gas And Steam (COGAS) propulsion system to a large container ship, in substitution of the traditional two-stroke diesel engine; (b) the proposal of optimized WHR propulsion and power systems for an oil tanker, for which a quantitative evaluation is given of the attainable advantages, in terms of fuel consumption and emissions reduction, in comparison with more traditional solutions.

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Improvement of exhaust gas heat recovery from marine diesel engines

Cited by 2 publications

References 0 publications

Comparison of ship plant layouts for power and propulsion systems with energy recovery

Comparison of ship plant layouts for power and propulsion systems with energy recovery

Waste Heat Recovery from Marine Gas Turbines and Diesel Engines

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