• Eulerian CFD model of direct absorption solar collector with nanofluid 

      Bårdsgård, Runa By; Kuzmenkov, Dmitriy M.; Kosinski, Pawel Jan; Balakin, Boris (Journal article; Peer reviewed, 2020)
      Solar energy is the most promising source of renewable energy. However, the solar energy harvesting process has relatively low efficiency, while the practical use of solar energy is challenging. Direct absorption solar ...
    • Experimental investigation of erosion due to nanofluids 

      Braut, Marthe; González-Fernández, Luis; Kosinska, Anna Dorota; Grosu, Yaroslav; Kosinski, Pawel Jan; Balakin, Boris (Journal article; Peer reviewed, 2022)
      The demand for efficient and sustainable energy is continuously increasing. Among the many technologies with great potential within this field are nanofluids. Nevertheless, there is still a considerable lack of information ...
    • Experimental study of hydrogen production using electrolyte nanofluids with a simulated light source 

      Wei, Shihao; Hikmati, Javad; Balakin, Boris; Kosinski, Pawel Jan (Journal article; Peer reviewed, 2022)
      In this research, we conducted water electrolysis experiments of a carbon black (CB) based sodium sulfate electrolyte using a Hoffman voltameter. The main objective was to investigate hydrogen production in such systems, ...
    • Extension of the hard-sphere model for particle-flow simulations 

      Kosinski, Pawel Jan; Balakin, Boris; Kosinska, Anna Dorota (Journal article; Peer reviewed, 2020)
      Discrete element methods require appropriate models for particle-particle collisions. Usually, researchers use soft-sphere types of models where the collision dynamics is solved numerically. This makes the simulation ...
    • Non-invasive studies of multiphase flow in process equipment. Positron emission particle tracking technique 

      Balakin, Boris; Adamsen, Tom Christian Holm; Chang, Yu-Fen; Kosinski, Pawel Jan; Hoffmann, Alex Christian (Peer reviewed; Journal article, 2017)
      Positron emission particle tracking (PEPT) is a novel experimental technique for non-invasive inspection of industrial fluid/particle flows. The method is based on the dynamic positioning of a positron-emitting, flowing ...
    • A numerical study of flow field and particle deposition in nasal channels with deviant geometry 

      Thune, Eveline Løvaas; Kosinski, Pawel Jan; Balakin, Boris; Alyaev, Sergey (Journal article; Peer reviewed, 2021)
      Deviant geometry of nasal channels results in significant changes to nasal aerodynamics that alter flow resistance, sensation, and the ability to filter aerosols. The invasive, operative modification of nasal geometry might ...
    • Photothermal convection of a magnetic nanofluid in a direct absorption solar collector 

      Balakin, Boris; Stava, Mattias; Kosinska, Anna Dorota (Journal article; Peer reviewed, 2022)
      Nanofluid-based direct absorption of solar heat results in thermal efficiencies superior to conventional solar thermal technology. In addition, convection of nanofluid can be sustained pump-free in the collector. In this ...
    • Photothermal conversion of biodegradable fluids and carbon black nanofluids 

      Kosinska, Anna Dorota; Balakin, Boris; Kosinski, Pawel Jan (Journal article; Peer reviewed, 2022)
      The paper is devoted to the topic of direct absorption solar collectors (DASCs). Various kinds of fluids can be used as heat transfer fluid in DASCs, and the main focus of our paper is on comparing nanofluids (water with ...
    • Theoretical analysis of erosion in elbows due to flows with nano- and micro-size particles 

      Kosinska, Anna Dorota; Balakin, Boris; Kosinski, Pawel Jan (Journal article; Peer reviewed, 2020-02-05)
      The present paper focuses on the issue of erosion due to fluid flow laden with nano- and microparticles. We investigated the case of a pipe elbow using theoretical analysis and numerical simulations. For the case when the ...
    • Use of biodegradable colloids and carbon black nanofluids for solar energy applications 

      Kosinska, Anna Dorota; Balakin, Boris; Kosinski, Pawel Jan (Journal article; Peer reviewed, 2021)
      The conversion of solar energy to heat can be performed in direct absorption solar collectors, where the radiation from the sun is absorbed by a fluid. There are various types of fluids that can be used, and recently, ...