OSUVA - Selaus tekijän "https://orcid.org/0000-0001-6399-6253" mukaan

    • Calibration Method for the Determination of the FAME and HVO Contents in Fossil Diesel Blends Using NIR Spectroscopy 

      Wikberg, Elena; Heikkilä, Sonja; Sirviö, Katriina; Välisuo, Petri; Niemi, Seppo; Niemi, Antti (MPDI, 07.05.2021)
      article
      The European diesel fuel standard, EN590, allows a 7% (V/V) biodiesel (FAME) addition to automotive diesel fuel. The allowed addition of renewable diesel (HVO) to fossil diesel is not defined, as long as the properties of ...
    • Crude Tall Oil based Renewable Diesel: Performance, Emission Characteristics and Storage Stability 

      Spoof-Tuomi, Kirsi; Vauhkonen, Ville; Niemi, Seppo; Ovaska, Teemu; Lehtonen, Vilja; Heikkilä, Sonja; Nilsson, Olav (SAE International, 21.09.2021)
      article
      International policies aiming at replacing fossil fuels with bio-components are getting stronger. Hydrotreating of bio-oils is a sustainable way to produce premium quality diesel fuels from completely renewable feedstocks. ...
    • Effects of Crude Tall Oil Based Renewable Diesel on the Performance and Emissions of a Non-Road Diesel Engine 

      Spoof-Tuomi, Kirsi; Vauhkonen, Ville; Niemi, Seppo; Ovaska, Teemu; Lehtonen, Vilja; Heikkilä, Sonja; Nilsson, Olav (SAE International, 21.09.2021)
      article
      Environmental concerns and government policies aiming to increase biofuel shares have led to the search for alternative fuels from a variety of renewable raw materials. The development of hydrotreated vegetable oil (HVO) ...
    • Effects of storage on the properties of rapeseed oil and alcohol blends 

      Nuortila, Carolin; Heikkilä, Sonja; Help, Riikka; Suopanki, Helena; Sirviö, Katriina; Niemi, Seppo (Estonian University of Life Sciences, 2021)
      article
      Kinematic viscosity and density are important fuel properties because they influence fuel atomisation during injection into the engine cylinder. The viscosity and density of neat vegetable oils usually are too high to allow ...
    • Selected Fuel Properties of Alcohol and Rapeseed Oil Blends 

      Nuortila, Carolin; Help, Riikka; Sirviö, Katriina; Suopanki, Helena; Heikkilä, Sonja; Niemi, Seppo (Molecular Diversity Preservation International (MDPI), 25.07.2020)
      article
      The alcohols ethanol and 1-butanol are interesting options as blending components for renewable fuels. We studied whether it is possible to mix these alcohols with a little refined material, rapeseed oil, to obtain stable ...
    • Selective Catalytic Reduction on Filter Performance Testing on Non-road Diesel Engine 

      Spoof-Tuomi, Kirsi; Niemi, Seppo; Ovaska, Teemu; Nilsson, Olav; Heikkilä, Sonja; Ekman, Krister (SAE International, 10.05.2021)
      article
      High-efficiency lean-burn compression ignition engines are expected to continue to play an important role as a power source for non-road mobile machinery. The challenge for these engines is that they suffer both high levels ...
    • Storage stability of rapeseed methyl ester stored in a sealed barrel for seven year 

      Heikkilä, Sonja; Sirviö, Katriina; Nuortila, Carolin; Niemi, Seppo (Estonian University of Life Sciences, 2021)
      article
      Storage stability is one of the main quality parameters related to fatty acid methyl esters (FAME) biofuels. The deterioration of biofuels´ properties during storage is a more serious issue than with conventional fuels. ...
    • The effect of sulphur content on B20 fuel stability 

      Sirviö, Katriina; Niemi, Seppo; Heikkilä, Sonja; Hiltunen, Erkki (Estonian University of Life Sciences, 2016)
      article
      The aim of this study was to investigate if a high amount of sulphur is favourable for the fuel blends' storage stability. The parameters that correlate with the storage stability of the fuel blends were compared with two ...