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Indrajuana, A. (author), Bekdemir, C. (author), Feru, E. (author), Willems, F. (author)The operation of a dual fuel combustion engine using combustion mode-switching offers the benefit of higher thermal efficiency compared to single-mode operation. For various fuel combinations, the engine research community has shown that running dual fuel engines in Reactivity Controlled Compression Ignition (RCCI) mode, is a feasible way to...conference paper 2018
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Hunicz, J. (author), Mikulski, M. (author), Geca, M.S. (author), Kordos, P. (author), Komsta, H. (author)Homogeneous charge compression ignition concepts despite high efficiency and ultra-low nitrous oxides emissions, suffer from week controllability and load range limited by excessive pressure rise rates. In the present work, controlled auto-ignition is achieved via direct injection of gasoline into the exhaust gasses recompressed during negative...article 2018
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- Mikulski, M. (author), Balakrishnan, P.R. (author), Doosje, E. (author), Bekdemir, C. (author) conference paper 2018
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- Seykens, X. (author), Kupper, F. (author), Mentink, P. (author), Ramesh, S. (author) article 2018
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Kupper, F. (author), Forrai, A. (author), Indrajuana, A. (author), Weijst, R.V.D. (author), Keulen, T.V. (author), Willems, F.T.P. (author)Accurate estimation of Brake Specific Fuel Consumption (BSFC) is required to enable on-line optimization of real-world fuel efficiency of diesel engines. This work aims to develop a BSFC estimation method which is accurate enough for an adaptive controller for on-line engine optimization, e.g., using Extremum Seeking. In this paper two different...article 2018
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Secure Real-Time Monitoring and Management of Smart Distribution Grid Using Shared Cellular NetworksNielsen, J.J. (author), Ganem, H. (author), Jorguseski, L. (author), Alic, K. (author), Smolnikar, M. (author), Zhu, Z. (author), Pratas, N.K. (author), Golinski, M. (author), Zhang, H. (author), Kuhar, U. (author), Fan, Z. (author), Svigelj, A. (author)Electricity production and distribution is facing two major changes. First, production is shifting from classical energy sources such as coal and nuclear power toward renewable resources such as solar and wind. Second, consumption in the low voltage grid is expected to grow significantly due to the expected introduction of electrical vehicles....article 2017
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Mikulski, M. (author), Bekdemir, C. (author)Natural gas - diesel, Reactivity Controlled Compression Ignition (RCCI) is currently one of the most promising combustion strategies for the next generation heavy-duty engines. A major issue to be addressed for this dual fuel concept to become practically applicable is its low combustion efficiency and associated high methane emissions in...article 2017
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Mikulski, M. (author), Wierzbicki, S. (author)Increasing demands for the reduction of exhaust emissions and the pursuit to reduce the use of fossil fuels require the search for new fuelling technologies in combustion engines. One of the most promising technologies is the multi-fuel compression ignition engine concept, in which a small dose of liquid fuel injected directly into the cylinder...article 2017
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Steinmann, Z.J.N. (author), Schipper, A.M. (author), Hauck, M. (author), Giljum, S. (author), Wernet, G. (author), Huijbregts, M.A.J. (author)Environmental footprints are increasingly used to quantify and compare environmental impacts of for example products, technologies, households, or nations. This has resulted in a multitude of footprint indicators, ranging from relatively simple measures of resource use (water, energy, materials) to integrated measures of eventual damage (for...article 2017
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Mookhoek, S.D. (author), van Kanten-Roos, W. (author), Bijleveld, F. (author)The Province of Zuid-Holland encourages the development of innovations to make the provincial road network more energy efficient. This is one way the province can contribute to reducing energy consumption and CO2 emissions in accordance with the Dutch energy agreement. To this end, the Province of Zuid-Holland, Strukton Civiel and TNO have...other 2017
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- Banerjee, R. (author), Mikulski, M. (author), Chakraborty, A. (author), Roy, S. (author), Bose, P.K. (author) article 2017
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Luo, X. (author), Donkers, M.C.F. (author), de Jager, A.G. (author), Willems, F.P.T. (author)Multi-pulse fuel injection in diesel engines enables a large flexibility in controlling the fueling profile, such that the engine performance can be maintained subject to disturbances, i.e., ambient condition changes and fuel injection deviations. Based on linearized systems, current fuel injection controller synthesis methods do not consider...conference paper 2016
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Mikulski, M. (author), Wierzbicki, S. (author)This study discusses the model of operation of a dual-fuel compression-ignition engine, powered by gaseous fuel with an initial dose of diesel fuel as the ignition inhibitor. The study used a zero-dimensional multiphase mathematical model of a dual-fuel engine to simulate the impact of enhancing Natural Gas (NG) with other gases on the...article 2016
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Ramachandran, S.N. (author), Hommen, G. (author), Mentink, P. (author), Seykens, X. (author), Willems, F. (author), Kupper, F. (author)Heavy-duty diesel engines are used in a wide range of applications. For varying operating environments, the engine and aftertreatment system must comply with the real-world emission legislation limits. Simultaneously, minimal fuel consumption and good drivability are crucial for economic competitiveness and usability. Meeting these requirements...article 2016
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Peetz, M.H. (author), de Rijke, M. (author), Kaptein, R. (author)In reputation management, knowing what impact a tweet has on the reputation of a brand or company is crucial. The reputation polarity of a tweet is a measure of how the tweet influences the reputation of a brand or company. We consider the task of automatically determining the reputation polarity of a tweet. For this classification task, we...article 2016
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Pham, T.H. (author), Rosea, B. (author), Wilkins, S. (author)This paper presents a battery peak power shaving strategy for battery electric buses. The developed strategy restricts the battery charge/discharge power when the propulsion power demand is high to avoid high deterioration of the battery capacity during operation. Without reducing the propulsion power, the developed strategy optimizes the power...article 2016
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Indrajuana, A. (author), Bekdemir, C. (author), Luo, X. (author), Willems, F.P.T. (author)Advanced combustion concepts such as Reactivity Controlled Compression Ignition (RCCI) demonstrate very high thermal efficiencies combined with ultra low NOx emissions. As RCCI is sensitive for operating conditions, closed-loop control is a crucial enabler for stable and robust combustion. The feedback design is complex due to the coupling...conference paper 2016
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Luo, X. (author), de Jager, B. (author), Willems, F.P.T. (author)With the application of multiple-pulse fuel injection profiles, the performance of diesel engines is enhanced in terms of low fuel consumption and low engine-out emission levels. However, the calibration effort increases due to a larger number of injection timing parameters. The difficulty of controlling the combustion phase also increases...conference paper 2015
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Luo, X. (author), Wang, S. (author), de Jager, B. (author), Willems, F.P.T. (author)With an increased number of fuel injection pulses, the control problem in diesel engines becomes complex. Consisting of multiple single-input single-output (SISO) controllers, the conventional control strategy shows unsatisfactory dynamic performance in tracking combustion load and phase reference metrics. In this paper, a general framework is...conference paper 2015
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Lomonova, E.A. (author), Paulides, J.J.H. (author), Wilkins, S. (author), Tegenbosch, J. (author)Alternative energy sources for traditional combustion engines (e.g. fuel cells, solar cells, batteries) in vehicles like motorbikes, cars, trucks, boats, planes will go hand in hand with a massive growth of the application of electric machines inside ('E-propulsion'). For automotive, marine, aerospace and other heavy duty transportation for...conference paper 2015