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Gdańsk University of Technology

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2019 5 Czasopisma spoza wykazu ministerialnego
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2019 5 Czasopisma spoza wykazu ministerialnego
2012 0 zagraniczne czasopisma naukowe

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2100-014X

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total: 15

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2017
  • Application of ANN and PCA to two-phase flow evaluation using radioisotopes
    Publication

    - EPJ Web of Conferences - 2017

    In the two-phase flow measurements a method involving the absorption of gamma radiation can be applied among others. Analysis of the signals from the scintillation probes can be used to determine the number of flow parameters and to recognize flow structure. Three types of flow regimes as plug, bubble, and transitional plug – bubble flows were considered in this work. The article shows how features of the signals in the time and...

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  • Comparative study of operation of condensing and traditional boilers equipped with the ORC module for electricity generation
    Publication

    - EPJ Web of Conferences - 2017

    Condensing technology applied to boilers is to make full use of thermal energy contained in the fuel. That means that additionaly the heat from condensation of exhaust gases can be used for the purposes of heating the domestic hot water and to cover the demand for central heating. The study analyzed the operation of the "traditional" boiler equipped with the ORC module as the similar arrangement but with the condensing boiler....

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  • Estimating the uncertainty of the liquid mass flow using the orifice plate
    Publication

    - EPJ Web of Conferences - 2017

    The article presents estimation of measurement uncertainty of a liquid mass flow using the orifice plate. This subject is essential because of the widespread use of this type of flow meters, which renders not only the quantitative estimation but also qualitative results of this type so those measurements are important. To achieve this goal, the authors of the paper propose to use the theory of uncertainty. The article shows the...

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  • Graphene field-effect transistor application for flow sensing
    Publication

    - EPJ Web of Conferences - 2017

    Microflow sensors offer great potential for applications in microfluidics and lab-on-a-chip systems. However, thermal-based sensors, which are commonly used in modern flow sensing technology, are mainly made of materials with positive temperature coefficients (PTC) and suffer from a self-heating effect and slow response time. Therefore, the design of novel devices and careful selection of materials are required to improve the overall...

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  • Improvement of radiotracers experiments in mass transfer processes
    Publication

    - EPJ Web of Conferences - 2017

    The greatest part of industrial mass transfer is based on continuous transportation of different substances throughout especially constructed installations. In that kind of practice, a flow of such mass in each part determines the process unit and can be described by the residence time distribution (RTD) of the substance inside this unit. This parameter may be evaluated by the properly arranged tracer experiment. It is worthwhile...

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  • Methods of measurement signal acquisition from the rotational flow meter for frequency analysis
    Publication

    - EPJ Web of Conferences - 2017

    One of the simplest and commonly used instruments for measuring the flow of homogeneous substances is the rotational flow meter. The main part of such a device is a rotor (vane or screw) rotating at a speed which is the function of the fluid or gas flow rate. A pulse signal with a frequency proportional to the speed of the rotor is obtained at the sensor output. For measurements in dynamic conditions, a variable interval between...

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2016
  • Air flow phenomena in the model of the blind drift
    Publication

    - EPJ Web of Conferences - 2016

    In the presented paper, Particle Image Velocimetry (PIV) has been used to investigate flow pattern and turbulent structure in the model of blind drift. The presented model exist in mining, and has been analyzed to resolve ventilation issues. Blind region is particularly susceptible to unsafe methane accumulation. The measurement system allows us to evaluate all components of the velocity vector in channel cross-section simultaneously....

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  • Possibilities of radioisotope measuring in control of an unstable solid particles hydrotransport
    Publication

    - EPJ Web of Conferences - 2016

    The paper presents γ-radiation proposal to control a multiphase flow, independently from circumstances. So this method may be applied even in compound industrial or environmental processes. Moreover in many cases, it is the only method for applications for dense mixture containing coarse angular grains. The constructed equipment allows continuous measurement of density as well as solid phase for both concentration and average velocity....

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2015

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