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  • 51.
    Mattiasson, Kerstin
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Mätteknik, Volym, flöde, temperatur o densitet.
    MID Consequences Nordtest project 040372005Report (Refereed)
  • 52.
    Merlone, Andrea
    et al.
    INRIM Istituto Nazionale di Ricerca Metrologica, Italy.
    Lopardo, Giuseppina
    INRIM Istituto Nazionale di Ricerca Metrologica, Italy.
    Francesca, Sanna
    CNR Consiglio Nazionale delle Ricerche, Italy.
    Bell, Stephanie A.
    NPL National Physical Laboratory, UK.
    Benyon, Robert
    Instituto Nacional de Técnica Aeroespacial, Spain.
    Bergerud, Reidun Anita
    Justervesenet, Norway.
    Bertiglia, Fabio
    INRIM Istituto Nazionale di Ricerca Metrologica, Italy.
    Bojkovski, Jovan
    University of Ljubljana, Slovenia.
    Böse, Norbert
    PTB Physikalisch-Technische Bundesanstalt, Germany.
    Brunet, Manola
    Rovira i Virgili University, Spain.
    Cappella, Andrea
    LNE Laboratoire national de métrologie et d'essais, France.
    Coppa, Graziano
    INRIM Istituto Nazionale di Ricerca Metrologica, Italy.
    Del Campo, Dolores
    CEM Centro Espanol de Metrologia, Spain.
    Dobre, Miruna
    SMD Service Métrologie Scientifique, Belgium.
    Drnovšek, Janko
    University of Ljubljana, Slovenia.
    Ebert, Volker
    PTB Physikalisch-Technische Bundesanstalt, Germany.
    Emardson, Ragne
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Mätteknik, Kommunikation.
    Fernicola, Vito
    INRIM Istituto Nazionale di Ricerca Metrologica, Italy.
    Flakiewicz, Krzysztof
    Ministry of Economy, Poland.
    Gardiner, Thomas
    NPL National Physical Laboratory, UK.
    García-Izquierdo, Carmen
    CEM Centro Espanol de Metrologia, Spain.
    Georgin, Éric
    LNE Laboratoire national de métrologie et d'essais, France.
    Gilabert, Alba
    University Rovira i Virgili, Spain.
    Grykałowska, Agnieszka
    Włodzimierz Trzebiatowski Institute of Low Temperature and Structure Research, Poland.
    Grudniewicz, Elżbieta
    GUM Central Office of Measures, Poland.
    Heinonen, Martti
    MIKES Centre for Metrology and Accreditation, Finland.
    Holmsten, Magnus
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Mätteknik, Volym, flöde, temperatur o densitet.
    Hudoklin, Domen
    University of Ljubljana, Slovenia.
    Johansson, Jan
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Mätteknik. Chalmers University of Technology, Sweden.
    Kajastie, Heikki
    MIKES Centre for Metrology and Accreditation, Finland.
    Kaykisizli, Hakan
    TÜBİTAK UME National Metrology Institute, Turkey.
    Klason, Peter
    RISE, SP – Sveriges Tekniska Forskningsinstitut.
    Kňazovická, Lenka
    CMI Czech Metrology Institute, Czech Republic.
    Lakka, Antti
    MIKES Centre for Metrology and Accreditation, Finland.
    Kowal, Aleksandra
    Włodzimierz Trzebiatowski Institute of Low Temperature and Structure Research, Poland.
    Müller, Harald
    PTB Physikalisch-Technische Bundesanstalt, Germany.
    Musacchio, Chiara
    INRIM Istituto Nazionale di Ricerca Metrologica, Italy.
    Nwaboh, Javis Anyangwe
    PTB Physikalisch-Technische Bundesanstalt, Germany.
    Pavlásek, Peter
    Slovak Institute of Metrology, Slovakia.
    Piccato, Aline
    INRIM Istituto Nazionale di Ricerca Metrologica, Italy.
    Pitre, Laurent
    LNE Laboratoire National de Métrologie et d'Essais, France.
    de Podesta, Michael
    Instituto Nacional de Técnica Aeroespacial, Spain.
    Rasmussen, Morten K.
    Danish Technological Institute, Denmark.
    Sairanen, Hannu
    MIKES Centre for Metrology and Accreditation, Finland.
    Smorgon, Denis
    Karlsruhe Institute of Technology, Germany.
    Sparasci, Fernando
    LNE Laboratoire National de Métrologie et d'Essais, France.
    Strnad, Radek
    CMI Czech Metrology Institute, Czech Republic.
    Szmyrka- Grzebyk, Anna
    Włodzimierz Trzebiatowski Institute of Low Temperature and Structure Research, Poland.
    Underwood, Robin
    NPL National Physical Laboratory, UK.
    The MeteoMet project – metrology for meteorology: challenges and results2015In: Meteorological Applications, ISSN 1350-4827, E-ISSN 1469-8080, Vol. 22, no S1, p. 820-829Article in journal (Refereed)
    Abstract [en]

    The study describes significant outcomes of the ‘Metrology for Meteorology’ project, MeteoMet, which is an attempt to bridge the meteorological and metrological communities. The concept of traceability, an idea used in both fields but with a subtle difference in meaning, is at the heart of the project. For meteorology, a traceable measurement is the one that can be traced back to a particular instrument, time and location. From a metrological perspective, traceability further implies that the measurement can be traced back to a primary realization of the quantity being measured in terms of the base units of the International System of Units, the SI. These two perspectives reflect long-standing differences in culture and practice and this project – and this study – represents only the first step towards better communication between the two communities. The 3 year MeteoMet project was funded by the European Metrology Research Program (EMRP) and involved 18 European National Metrological Institutes, 3 universities and 35 collaborating stakeholders including national meteorology organizations, research institutes, universities, associations and instrument companies. The project brought a metrological perspective to several long-standing measurement problems in meteorology and climatology, varying from conventional ground-based measurements to those made in the upper atmosphere. It included development and testing of novel instrumentation as well as improved calibration procedures and facilities, instrument intercomparison under realistic conditions and best practice dissemination. Additionally, the validation of historical temperature data series with respect to measurement uncertainties and a methodology for recalculation of the values were included.

  • 53.
    Nyberg, Anders
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Mätteknik, Volym, flöde, temperatur o densitet.
    Fallstudie styr och regler - kylriggen VV1 på energiteknik2004Report (Refereed)
  • 54.
    Palm, Magnus
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor, Material och ytteknik.
    Mattiasson, Kerstin
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Mätteknik, Volym, flöde, temperatur o densitet.
    Nordling, Bengt
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Energi och Bioekonomi, Klimatisering och installationsteknik.
    Segerdahl, Karin
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor.
    Kopparbeläggningar på induktiva flödesmätare2005Report (Refereed)
  • 55.
    Pendrill, Leslie
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Mätteknik.
    Andersson, Anne
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Mätteknik, Kommunikation.
    Löfdahl, Gunn-Mari
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Mätteknik, Volym, flöde, temperatur o densitet.
    Linkova, Marcela
    Ptackova, Katerina
    Henson, Andy
    Lea, Deborah
    Kovrzková, Jana
    Havrlantová, Silvie
    T2.8 - Social and ethical issues of metrology Deliverable D2.11. Recommendations to imporove the gender balance in European metrology.2007Report (Refereed)
  • 56.
    Pendrill, Leslie
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Mätteknik.
    Löfdahl, Gunn-Mari
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Mätteknik, Volym, flöde, temperatur o densitet.
    Magnusson, Bertil
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Oorganisk kemi (Kmoo).
    Sacconi, A.
    Metrology needs and measurement priorities in the Environmental sector2007Report (Refereed)
  • 57.
    Penttinen, Olle
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Mätteknik, Volym, flöde, temperatur o densitet.
    Nilsson, Håkan
    Chalmers University of Technology, Sweden.
    A fully synthetic turbulent boundary condition with a homogeneous vortex distribution2015In: Computer Physics Communications, ISSN 0010-4655, E-ISSN 1879-2944, Vol. 190, p. 23-32Article in journal (Refereed)
    Abstract [en]

    Temporally and spatially resolved simulations of turbulent flow need realistic inlet velocity fluctuations. The vortex method, described and implemented in this work, adds vortices to the inlet mean flow profile. The vortices are randomly distributed over the inlet and they move across the extent of the inlet with a finite life-time. The initial vortex sizes, strengths, as well as their developing motion and life-times, are determined by the inlet mean velocity and turbulence distributions. In contrast to previous studies of the vortex method, the inlet mean velocity and turbulence distributions are in the present work theoretically determined, and thus form an explicit part of the boundary condition. This makes the method independent of precursor RANS simulations. Special care has been taken to distribute the vortices evenly across the inlet. The tangential velocity of the vortices is randomly initialized and the spatial and temporal correlation is preserved. An edge bouncing mechanism is implemented at solid boundaries.

    The boundary condition is applied to a DNS simulation of pipe flow at a Reynolds number of 5300, based on pipe diameter, aiming at reaching fully developed conditions at a short distance from the inlet. The results are compared with those using cyclic boundary conditions, and with two DNS results found in the literature. It is shown that a good agreement is reached for the mean velocity profiles five pipe diameters downstream from the inlet. Also the resolved velocity fluctuations at that location are reasonable. It is concluded that the present implementation of the vortex method boundary condition, based on theoretical mean velocity and turbulence profiles, gives an inlet flow that is sufficiently realistic to reach a well-resolved fully developed turbulent pipe flow at five pipe diameters downstream the inlet.

  • 58.
    Persson, Henry
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research.
    Bremer, Peter
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Elektronik, Produktsäkerhet.
    Rosell, Lars
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Organisk kemi (Kmo).
    Lindström, Kent
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Mätteknik, Volym, flöde, temperatur o densitet.
    Arrhenius, Karine
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Organisk kemi (Kmo).
    Fuel vapour composition and flammability properties of E852008Report (Refereed)
  • 59.
    Persson, Henry
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Brandteknik, skydd (BRs ).
    Bremer, Peter
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Elektronik, Produktsäkerhet.
    Rosell, Lars
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Organisk kemi (Kmo).
    Lindström, Kent
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Mätteknik, Volym, flöde, temperatur o densitet.
    Arrhenius, Karine
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Organisk kemi (Kmo).
    Sammansättning och antändningsegenskaper hos bränsleångor i tankar innehållande E852007Report (Refereed)
  • 60.
    Rabone, J
    et al.
    Swinton Technology – UK.
    Lewis, K
    Swinton Technology – UK.
    Buker, O
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Mätteknik, Volym, flöde, temperatur o densitet.
    Differential Pressure Meter Diagnostics – Independent Evaluation on Orifice Meter with Liquid Flow2015Conference paper (Other academic)
  • 61.
    Stolt, Krister
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Mätteknik, Volym, flöde, temperatur o densitet.
    Riktad jämförelsemätning år 2003, för ackreditereade kontrollorgan för vattenmätare. Utfört i samband med ordinarie årlig tillsyn.2004Report (Refereed)
    Abstract [sv]

    -

  • 62.
    Stolt, Krister
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Mätteknik, Volym, flöde, temperatur o densitet.
    Nerijus, Pedisius
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Mätteknik, Volym, flöde, temperatur o densitet.
    Bilateral intercomparison between Lithuanian Energy Institute (LEI) and Swedish National Testing and Research Institute (SP), in the field of volume of kerosene. Flow rate 150-700 l/min2004Report (Refereed)
    Abstract [en]

    The result of this bilateral intercomparison between LEI and SP, of calibration of a PD-meter for kerosene, indicate excellent agreement of the calibration results. The resulting En-values range from 0,03 to 0,32, i.e. with very good margins to the limit value of 1.

  • 63.
    Tawackolian, K.
    et al.
    PTB Physikalisch-Technische Bundesanstalt, Germany.
    Büker, Oliver
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Mätteknik, Volym, flöde, temperatur o densitet.
    Hogendoorn, J.
    KROHNE Altometer, The Netherlands.
    Lederer, T.
    PTB Physikalisch-Technische Bundesanstalt, Germany.
    Investigation of a ten-path ultrasonic flow meter for accurate feedwater measurements2014In: Measurement science and technology, ISSN 0957-0233, E-ISSN 1361-6501, Vol. 25, no 7, p. 75304-Article in journal (Refereed)
    Abstract [en]

    The flow instruments used in thermal power plants cannot be calibrated directly for the actual process conditions, since no traceable calibration facility with known uncertainty is available. Asystematic investigation of the relevant influence parameters is therefore needed. It was found in earlier investigations that the dominant influences on the measurement uncertainty are the flowvelocity profile and the temperature. In the present work, we report on our experimental study of the temperature and Reynolds number dependence of a new ten-path ultrasonic flow meterprototype. An improved measuring program is developed that allows for a systematic characterization. Special emphasis was placed on producing and validating well defined velocity profiles on aprecision calibration flow rig. It was also for the first time intended and validated to generate fully developed Reynolds-similar velocity profiles for different temperatures so that the two main influence parameters, namely temperature and Reynolds number, can be clearly characterized separately. Since such ideal measurement conditions are not found in practical applications, the approach is also tested for a disturbed flow condition. A well defined disturbance is generated with a new flow disturber.

12 51 - 63 of 63
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