Aineistot 1-10 / 13
Seabed Sediment as an Annually Renewable Heat Source
Thermal energy collected from the sediment layer under a water body has been suggested for use as a renewable heat source for a low energy network. A prototype system for using this sediment energy was installed in Suvilahti, ...
Microalgae Chlorella vulgaris biomass harvesting by natural flocculant : effects on biomass sedimentation, spent medium recycling and lipid extraction
Background: Microalgal biomass harvesting using traditional chemicals is costly for the production of biofuels, hindering the scale-up process of the technology. Thus, the search for a cost-effective microalgal harvesting ...
Feasibility of New Liquid Fuel Blends for Medium-Speed Engines
(Molecular Diversity Preservation International (MDPI), 2019-07-20)
Several sustainable liquid fuel alternatives are needed for different compression ignition (CI) engine applications. In the present study, five different fuel blends were investigated. Rapeseed methyl ester (RME) was used ...
Utilizing Asphalt Heat Energy in Finnish Climate Conditions
(Molecular Diversity Preservation International (MDPI), 2019)
Geothermal energy is a form of renewable energy, which offers carbon-free solutions for heating and cooling spaces. This study evaluates the use of renewable asphalt heat energy in frozen ground conditions. Asphalt heat ...
Analysis of ground heat exchanger for a ground source heat pump : A study of an existing system to find optimal borehole length to enhance the coefficient of performance
(World Scientific and Engineering Academy and Society (WSEAS), 2017)
Ground Source Heat Hump is one of the emerging technic to utilize the reservoir of geothermal energy in Europe. The crucial factor is to find the optimal length of the borehole to successfully design a heating system. The ...
Fuel blends behavior in freezing-melting phase transition
(Technische Akademie Esslingen, 2019)
Several renewable and sustainable liquid fuel alternatives are needed for different compression-ignition (CI) engine applications to reduce greenhouse gas (GHG) emissions. Biodiesels, FAMEs, have been studied for long time ...
The effect of sulphur content on B20 fuel stability
(Estonian University of Life Sciences, 2016)
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 ...
Effects of sulphur on the storage stability of the bio and fossil fuel blends
(Estonian Agricultural University, Faculty of Agronomy, 2017)
In this study, the aim was to find out if mixing two common fuels together could be beneficial for both the environment and storage stability of fuel. It is obvious, that adding biodiesel to fossil fuel will decrease its ...
Kinematic viscosity studies for medium-speed CI engine fuel blends
(Estonian Agricultural University, Faculty of Agronomy, 2018)
Engine - driven power plants, run by diesel fuel or gas, will be needed for peaking power to keep the electricity grids stable when the production of renewable electricity, e.g. utilizing wind or solar power, is increased. ...
Behavior of B20 fuels in arctic conditions
(Estonian Agricultural University, Faculty of Agronomy, 2019)
Several renewable and sustainable liquid fuel alternatives are needed for different compression-ignition (CI) engine applications to reduce greenhouse gas (GHG) emissions and to ensure proper primary energy sources for the ...