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Publications (10 of 82) Show all publications
Zhu, B., Seifeddine, S., Jarfors, A. E. .., Leisner, P. & Zanella, C. (2018). A study of anodising behaviour of Al-Si componentsproduced by rheocasting. In: : . Paper presented at S2P2018, Shenzhen, China 22-24 October 2018.
Open this publication in new window or tab >>A study of anodising behaviour of Al-Si componentsproduced by rheocasting
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2018 (English)Conference paper, Oral presentation with published abstract (Other academic)
National Category
Metallurgy and Metallic Materials
Identifiers
urn:nbn:se:ri:diva-36950 (URN)
Conference
S2P2018, Shenzhen, China 22-24 October 2018
Available from: 2018-12-28 Created: 2018-12-28 Last updated: 2019-01-11Bibliographically approved
Leisner, P., Hansen, Å. & Zanella, C. (2018). Applicationof Assaf panel for evaluating the throwing power of pulse reverse plating. In: : . Paper presented at 8th European Pulse Plating Seminar, Vienna 2 March 2018.
Open this publication in new window or tab >>Applicationof Assaf panel for evaluating the throwing power of pulse reverse plating
2018 (English)Conference paper, Oral presentation with published abstract (Other academic)
National Category
Manufacturing, Surface and Joining Technology
Identifiers
urn:nbn:se:ri:diva-36947 (URN)
Conference
8th European Pulse Plating Seminar, Vienna 2 March 2018
Available from: 2018-12-28 Created: 2018-12-28 Last updated: 2019-01-11Bibliographically approved
Ahmadkhaniha, D., Eriksson, F., Leisner, P. & Zanella, C. (2018). Effect of SiC particle size and heat-treatment on microhardness and corrosion resistance of NiP electrodeposited coatings. Journal of Alloys and Compounds, 769, 1080-1087
Open this publication in new window or tab >>Effect of SiC particle size and heat-treatment on microhardness and corrosion resistance of NiP electrodeposited coatings
2018 (English)In: Journal of Alloys and Compounds, ISSN 0925-8388, E-ISSN 1873-4669, Vol. 769, p. 1080-1087Article in journal (Refereed) Published
Abstract [en]

Electrodeposition of NiP composite coatings with nano and sub-micron sized SiC has been carried out to investigate the possibility of replacing hard chromium coatings. The composition and structure of the coatings were evaluated by energy dispersive X-ray spectroscopy (EDS) and X-ray diffraction (XRD) analysis, respectively. Microhardness was measured by Vickers indentation and polarization measurements were carried out to study the corrosion behavior of the coatings. The results showed that submicron particles can be codeposited with a higher content as compared to nano sized ones. However, even if a smaller amount of the nano-sized SiC particles are incorporated in the coating, the contribution to an increasing microhardness was comparable with the submicron sized particles, which can be related to the higher density of codeposited particles. SiC particles did not change the anodic polarization behavior of NiP coatings in a 3.5% NaCl solution. Finally, the effect of heat-treatment on the coatings properties at 400 °C for 1 h was studied to investigate the contribution of particles and heat-treatment on hardness and corrosion properties. It was found that the heat-treatment doubled the microhardness and changed the anodic polarization behavior of the coatings from passive to active with respect to the as-plated conditions.

Keywords
Electrodeposition, Heat-treatment, Microhardness, NiP, Polarization, SiC
National Category
Natural Sciences
Identifiers
urn:nbn:se:ri:diva-35030 (URN)10.1016/j.jallcom.2018.08.013 (DOI)2-s2.0-85051683091 (Scopus ID)
Note

Financial support of European Union's for PROCETS project (Horizon 2020 research and innovation program under grant agreement No 686135 ).

Available from: 2018-08-27 Created: 2018-08-27 Last updated: 2018-08-27Bibliographically approved
Cornander, A. & Leisner, P. (2018). Emissionfree non-road mobile machinery. In: : . Paper presented at City of Copenhagen Climate Conference, Copenhagen 12 November 2018.
Open this publication in new window or tab >>Emissionfree non-road mobile machinery
2018 (English)Conference paper, Oral presentation only (Other academic)
National Category
Vehicle Engineering Energy Engineering
Identifiers
urn:nbn:se:ri:diva-36949 (URN)
Conference
City of Copenhagen Climate Conference, Copenhagen 12 November 2018
Funder
Interreg Öresund-Kattegat-Skagerrak
Available from: 2018-12-28 Created: 2018-12-28 Last updated: 2019-01-11Bibliographically approved
Belov, I., Alavizadeh, Z., Lindgren, M., Rydén, J. & Leisner, P. (2018). Experimental and CFD evaluation of active anti-condensation methods for non-hermetic cabinets. In: 2018 19th International Conference on Thermal, Mechanical and Multi-Physics Simulation and Experiments in Microelectronics and Microsystems (EuroSimE): . Paper presented at 2018 19th International Conference on Thermal, Mechanical and Multi-Physics Simulation and Experiments in Microelectronics and Microsystems (EuroSimE) (pp. 1-6).
Open this publication in new window or tab >>Experimental and CFD evaluation of active anti-condensation methods for non-hermetic cabinets
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2018 (English)In: 2018 19th International Conference on Thermal, Mechanical and Multi-Physics Simulation and Experiments in Microelectronics and Microsystems (EuroSimE), 2018, p. 1-6Conference paper, Published paper (Refereed)
Abstract [en]

Experimental evaluation of several active anti-condensation methods for application in non-hermetic electronics enclosures was performed in harsh climatic conditions, including RH = 70% and T = 43 °C. The studied methods included blowing the air along the exposed surface, combination of blowing and air heating as well as local heating of the exposed surface in natural convection conditions. The purpose was to prevent/remove the dew on/from the exposed surface of a micro-condensation sensor. The difference between the methods was quantified in terms of time for dew removal. The power consumption aspects were discussed. A CFD based optimization methodology was developed to determine the heating profiles for the local anti-condensation PCB heater in a non-hermetic cabinet exposed to the quickly changing climatic conditions. The potential for 60% energy savings was revealed by simulation.

Keywords
computational fluid dynamics, condensation, electronics packaging, heating, natural convection, microcondensation sensor, CFD based optimization methodology, nonhermetic cabinet, active anti-condensation methods, natural convection conditions, air heating, temperature 43.0 degC, Heating systems, Surface treatment, Humidity, Plastics, Electron tubes, Temperature measurement, Bars
National Category
Natural Sciences
Identifiers
urn:nbn:se:ri:diva-34345 (URN)10.1109/EuroSimE.2018.8369863 (DOI)2-s2.0-85048877385 (Scopus ID)
Conference
2018 19th International Conference on Thermal, Mechanical and Multi-Physics Simulation and Experiments in Microelectronics and Microsystems (EuroSimE)
Available from: 2018-08-06 Created: 2018-08-06 Last updated: 2019-01-08Bibliographically approved
Belov, V., Leisner, P., Mannikoff, A. & Belov, I. (2018). Mathematical Model of Multi-Phase Power Converter for Parallel Computation. International Journal of Emerging Electric Power Systems, Article ID 20170114.
Open this publication in new window or tab >>Mathematical Model of Multi-Phase Power Converter for Parallel Computation
2018 (English)In: International Journal of Emerging Electric Power Systems, ISSN 2194-5756, E-ISSN 1553-779X, article id 20170114Article in journal (Refereed) Published
Abstract [en]

A mathematical model of a multi-phase power conversion system composed of modified bridge-elements (B-system) capable for parallel computation has been developed. Experimental validation on the example of a power system including a synchronous generator and an AC-DC rectifier has been performed. A mathematical algorithm for B-system assembly and steps to obtain mathematical model of the B-system have been developed. Integration of mathematical models of conversion system into the complete model of a multi-phase power system has been explained and evaluation of computational efficiency of parallel computation techniques for the developed model of an AC-DC-AC converter has been performed. The presented modelling method can be employed in the design phase of smart grids, for power quality and conducted emission analysis.

Keywords
mathematical model, parallel computation, power converter, power quality, power system, rectifier, AC-AC power converters, Computational efficiency, Electric inverters, Electric power transmission networks, Mathematical models, Power converters, Quality control, Rectifying circuits, Smart power grids, AC-DC-AC converters, Conducted emissions, Experimental validations, Mathematical algorithms, Power conversion systems, Electric rectifiers
National Category
Natural Sciences
Identifiers
urn:nbn:se:ri:diva-33442 (URN)10.1515/ijeeps-2017-0114 (DOI)2-s2.0-85042112535 (Scopus ID)
Available from: 2018-03-09 Created: 2018-03-09 Last updated: 2018-08-22Bibliographically approved
Zanella, C. & Leisner, P. (2018). mCBEEs Nytt europeisktutbildningsnätverk loser korrosionsproblem på mikro- och nanonivå. Ytforum
Open this publication in new window or tab >>mCBEEs Nytt europeisktutbildningsnätverk loser korrosionsproblem på mikro- och nanonivå
2018 (Swedish)In: YtforumArticle in journal (Other (popular science, discussion, etc.)) Published
National Category
Metallurgy and Metallic Materials
Identifiers
urn:nbn:se:ri:diva-35104 (URN)
Available from: 2018-09-01 Created: 2018-09-01 Last updated: 2018-09-05Bibliographically approved
Leisner, P. (2018). Prizes and grants from the European Academy of Surface Technology. Transactions of the Institute of Metal Finishing, 96(6), 287-289
Open this publication in new window or tab >>Prizes and grants from the European Academy of Surface Technology
2018 (English)In: Transactions of the Institute of Metal Finishing, ISSN 0020-2967, E-ISSN 1745-9192, Vol. 96, no 6, p. 287-289Article in journal (Other academic) Published
National Category
Natural Sciences
Identifiers
urn:nbn:se:ri:diva-36427 (URN)10.1080/00202967.2018.1520484 (DOI)2-s2.0-85054905608 (Scopus ID)
Available from: 2018-11-22 Created: 2018-11-22 Last updated: 2018-11-22Bibliographically approved
Magagnin, L. & Leisner, P. (2018). Professor Pietro Luigi Cavallotti: 11 November 1938 – 12 October 2017. Transactions of the Institute of Metal Finishing, 96(1), 7
Open this publication in new window or tab >>Professor Pietro Luigi Cavallotti: 11 November 1938 – 12 October 2017
2018 (English)In: Transactions of the Institute of Metal Finishing, ISSN 0020-2967, E-ISSN 1745-9192, Vol. 96, no 1, p. 7-Article in journal, Editorial material (Other (popular science, discussion, etc.)) Published
National Category
Manufacturing, Surface and Joining Technology
Identifiers
urn:nbn:se:ri:diva-32934 (URN)
Available from: 2017-12-29 Created: 2017-12-29 Last updated: 2018-08-22Bibliographically approved
Solér, O., Bye, Å., Aronsson, B., Wiberg, E., Leisner, P., Cornander, A., . . . Baden, N.-A. (2018). Rammevilkår og strategier for hydrogen i transportsektoren.
Open this publication in new window or tab >>Rammevilkår og strategier for hydrogen i transportsektoren
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2018 (Norwegian)Report (Other academic)
Alternative title[sv]
Ramvillkor och strategier för vätgas inom transportsektorn
Abstract [en]

The Interreg project Blue Move promotes increased use of renewable energy to replace fossil fuels in the Øresund-Kattagat-Skagerrak (ØKS) region. International, national, regional and local framework conditions, strategies and measures are crucial in making the transport sector emission-free. Such framework conditions and strategies providing examples of what can be done at local and regional level to promote emission-free transport are described including analysis of business models for the use of hydrogen for transport, as well as proposals for strategic roadmap bullet points and a concrete checklist for municipalities that wish to facilitate emission-free transport. The purpose of the report is to help both public and private stakeholders succeed in introducing hydrogen as a fuel. A tight interaction between the public and private sector is seen crucial to secure a successful outcome. Municipalities and counties/regions have important roles as facilitators and first movers including hydrogen vehicles in their own car fleet and for public transport. Through its purchasing power, public authorities can drive development in the right direction by demanding the use of emission-free fuels. At the same time, the private sector has important roles in building and operating infrastructure, as well as adopting hydrogen fuelled passenger cars and utility vehicle.The report describes framework conditions and strategies for reducing greenhouse gas emissions from transport at EU level and down to local level. There is a strong connection between these strategies; To achieve the EU goals, each country must set its own goals. Similar, to reach the national targets, measures must be taken at local and regional level. In Chapter 3, the EU goals and strategies are described. Chapter 4 addresses the national framework conditions and strategies in Sweden, Denmark, and Norway. It appears that there are great variations in which instruments are used in the countries to promote emission-free transport. In Chapter 5, a range of insights into regional and local strategies, action plans and measures are provided. In an early phase, sustainable business models might be hard to find without financial support both for private and public stakeholders. In a Blue Move feasability study [BLUE MOVE WP3] the potential of hydrogen as an energy carrier in the ØKS region was illuminated through several case descriptions. In Chapter 6, a brief analysis of the business models described by these cases is provided. Then, a numerical example is presented illustrating the profitability of a small hydrogen station related to a fixed refuelling demand. Next, the possibility of infrastructure development in elucidation of construction machinery and coordinated initiatives in the field of heavy transport are described. At the very end of the chapter, a study of the potential for temporary hydrogen filling stations in Norway and Sweden is summarised. Finally, the report provides some practical advice on how to get more hydrogen on the road. Here, 10 roadmap bullet points at a slightly higher level for what and how to focus are given. Furthermore, a concrete 10-point checklist for municipalities is presented. The municipalities play an important role in transforming their own vehicle fleet and facilitating that private sector and its residents being able to run emissions-free. Our aim is that the report will inspire both public and private sector to plan and implement concrete measures to increase the use of hydrogen for transport and by these means achieve its goals of reduced greenhouse gas emissions.

Publisher
p. 69
National Category
Energy Engineering
Identifiers
urn:nbn:se:ri:diva-36945 (URN)
Projects
Blue Move Interreg ÖKS
Available from: 2018-12-28 Created: 2018-12-28 Last updated: 2019-01-08Bibliographically approved
Identifiers
ORCID iD: ORCID iD iconorcid.org/0000-0002-7095-1907

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