Supervision and control prototyping for an engine exhaust gas heat recovery system based on a steam Rankine cycle

Tona, Paolino; Peralez, Johan; Sciarretta, Antonio

doi:10.1109/aim.2012.6266053

Cited by 17 publications

(15 citation statements)

References 17 publications

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“…The considered supervision structure for the Rankine pilot process is similar to that described in [40]. For the sake of completeness, safety and management modes used during the experiment are detailed in the following.…”

Section: ) Sh Regulation On a Representative Heavy-duty Roadmentioning

confidence: 99%

Organic Rankine Cycle for Vehicles: Control Design and Experimental Results

Peralez

Nadri

Dufour

et al. 2017

IEEE Trans. Contr. Syst. Technol.

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The system considered here is an organic Rankine cycle for recovering waste heat from a heavy-duty diesel engine. Because of the highly transient conditions these systems are subject to, control plays a fundamental role to enable the viability and efficiency of those systems. In this context, this paper investigates the problem of control design for superheating (SH) and pressure at evaporator outlet. Based on a moving boundary heat exchanger model, a first controller, which consists of a dynamic feedforward combined to a gain-scheduled PID, is implemented on the pump speed to maintain the SH close to the set-point value. Experimental results illustrate the enhanced performance in terms of disturbance rejection. Then, a second controller based on nonlinear state estimation is proposed. This is a nonlinear feedback law, which allows to adjust the evaporating pressure to time-varying demand with a good accuracy.

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Section: ) Sh Regulation On a Representative Heavy-duty Roadmentioning

confidence: 99%

Organic Rankine Cycle for Vehicles: Control Design and Experimental Results

Peralez

Nadri

Dufour

et al. 2017

IEEE Trans. Contr. Syst. Technol.

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“…[5][6][7] Additional papers were found on the control of small-scale steam Rankine cycles for waste heat recovery in automotive applications. [8,9] Both of these papers applied proportional-integral controllers to a simulation of a small scale steam Rankine cycle for recovery of heat from combustion engines. Due to the nature of the waste heat applications, these papers focused on the regulation of the rapid fluctuations that are present in these processes.…”

Section: Introductionmentioning

confidence: 99%

Simulation of set‐point feed‐forward control of wellhead valves in an organic Rankine cycle geothermal power plant

Proctor

Young

2015

Asia-Pacific J Chem Eng

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Organic Rankine cycles (ORCs) are an energy conversion technology particularly suitable for low enthalpy heat resources. In this paper, the application of a different kind of feed-forward scheme called set-point feed-forward control to an organic Rankine cycle geothermal power plant is examined. The set-point feed-forward control scheme uses a set-point for a pressure controller in the plant to govern the position of valves located at the geothermal wellheads. It was tested using a dynamic model of an ORC geothermal plant, which shows an improvement in the time taken to reach steady state by a factor of 4-6. Testing the scheme with a simplified optimisation programme and disturbance in ambient temperature showed it reduced the emission of 4 tonnes of geothermal vapour to the atmosphere, which ultimately improves plant sustainability and profitability.

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“…Analogue to [12], two parallel PI controllers are implemented to control the post-EGR and post-exhaust evaporator temperature to their desired values (Fig. 7): …”

Section: Low-level Whr Controlmentioning

confidence: 99%

“…However, control studies mainly focus on low level WHR system control [8][9][10][11][12]. Only a very few studies concentrate on energy management strategies for the complete engine [13].…”

Section: Introductionmentioning

confidence: 99%

Integrated Energy and Emission Management for Diesel Engines with Waste Heat Recovery Using Dynamic Models

Willems

Kupper²,

Rascanu

et al. 2014

Oil Gas Sci. Technol. – Rev. IFP Energies nouvelles

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-Rankine-cycle Waste Heat Recovery (WHR) systems are promising solutions to reduce fuel consumption for trucks. Due to coupling between engine and WHR system, control of these complex systems is challenging. This study presents an integrated energy and emission management strategy for an Euro-VI Diesel engine with WHR system. This Integrated Powertrain Control (IPC) strategy optimizes the CO 2 -NO x trade-off by minimizing online the operational costs associated with fuel and AdBlue consumption. Contrary to other control studies, the proposed control strategy optimizes overall engine-aftertreatment-WHR system performance and deals with emission constraints. From simulations, the potential of this IPC strategy is demonstrated over a World Harmonized Transient Cycle (WHTC) using a highfidelity simulation model. These results are compared with a state-of-the-art baseline engine control strategy. By applying the IPC strategy, an additional 2.6% CO 2 reduction is achieved compare to the baseline strategy, while meeting the tailpipe NO x emission limit. In addition, the proposed low-level WHR controller is shown to deal with the cold start challenges.

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Supervision and control prototyping for an engine exhaust gas heat recovery system based on a steam Rankine cycle

Cited by 17 publications

References 17 publications

Organic Rankine Cycle for Vehicles: Control Design and Experimental Results

Organic Rankine Cycle for Vehicles: Control Design and Experimental Results

Simulation of set‐point feed‐forward control of wellhead valves in an organic Rankine cycle geothermal power plant

Integrated Energy and Emission Management for Diesel Engines with Waste Heat Recovery Using Dynamic Models

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