Selaus tekijän mukaan kokoelmassa "Turunen-Saaresti, Teemu"Tieteelliset julkaisut
Aineistot 1-17 / 17
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Centrifugal compressor tip clearance and impeller flow
(Springer Verlag, 2016)Compressors consume a considerable portion of the electricity used in the industrial sector. Hence, improvements in compressor efficiencylead to energy savings and reduce environmental impacts. The efficiency of an unshrouded ... -
CFD-DEM simulations of hydrodynamics of combined ion exchange-membrane filtration
(Elsevier, 07.08.2019)The combined ion exchange-membrane filtration system, whereby an active filtration layer is formed using a slurry flow of resin beads and water, has the potential to reduce energy usage and increase the quality of purified ... -
Design and verification of a hermetic high-speed turbogenerator concept for biomass and waste heat recovery applications
(Elsevier, 11.09.2020)Many waste heat recovery and biomass applications offer opportunities for small-scale steam turbines to produce electricity and to improve systems’ energy efficiency. However, the currently used axial turbine-based technology ... -
Effect of Vaneless Diffuser Width on the Overall Performance of a Centrifugal Compressor
(Sage Journals, 2011)Three vaneless diffuser designs, varying in diffuser width, for centrifugal compressor were studied experimentally. Along with the diffuser width, the tip clearance was altered. The compressor overall performance and ... -
Effects of Different Blade Angle Distributions on Centrifugal compressor performance
(Hindawi, 2009)A centrifugal compressor with three different shrouded 2D impellers is studied numerically. All impellers have the same dimensions, and they only differ in channel length and geometry. Noticeable differences in efficiency ... -
Experimental study of centrifugal compressor tip clearance and vaneless diffuser flow fields
(Sage Journals, 2013)Three vaneless diffuser designs, varying in diffuser width, for centrifugal compressor were studied experimentally. Along with the diffuser width, the tip clearance was altered. The compressor overall performance and ... -
Experimental study of centrifugal compressor vaneless diffuser width
(Korean Society of Mechanical Engineers, 2013)Seven different vaneless diffuser designs for a centrifugal compressor, varying only in diffuser width, were studied experimentally. The studied diffuser widths versus impeller exit width were 1.0, 0.903, 0.854, and 0.806. ... -
Experimental study of small scale and high expansion ratio ORC for recovering high temperature waste heat
(Elsevier, 11.07.2020)In recent times, the use and development of small-scale ( 10 kW) ORC systems has received an increasing interest. However, the operational characteristics of small-scale high-expansion ratio ORC turbines are not yet well ... -
Importance of the vane exit mach number on the axial clearance-related losses
(Sage Journals, 2016)More efficient and physically smaller axial turbine designs are promoted to lower emissions and increase revenue. The physical size and the weight of the axial turbine can be minimised by adjusting the distance between ... -
Influence of the axial turbine design parameters on the stator–rotor axial clearance losses
(Sage Journals, 2014)The drive towards lower emissions in aerospace engines promotes more efficient and physically smaller engines. One way to decrease the size of the axial turbine is to minimize the distance between successive stator and ... -
Investigation of the Stage Performance and Flow Fields in a Centrifugal Compressor with a Vaneless Diffuser
(Hindawi, 2014)The effect of the width of the vaneless diffuser on the stage performance and flow fields of a centrifugal compressor is studied numerically and experimentally. The diffuser width is varied by reducing the diffuser flow ... -
Measurement System of Small-Scale High Expansion Ratio ORC Turbine
(Springer, Cham, 13.02.2021)Small-scale and high temperature ORCs have received increasing interest in recent times. This type of power systems can have high expansion ratio turbines with gas dynamic effects differing significantly from the behaviour ... -
Numerical analysis of working fluids for large scale centrifugal compressor driven cascade heat pumps upgrading waste heat
(Elsevier, 14.05.2020)Heat pump technology has the capability to upgrade unusable low-temperature waste heat and make the upgraded heat usable for different types of industrial and domestic heating applications. Heat upgrading could allow to ... -
Performance and flow fields of a supersonic axial turbine at off-design conditions
(Institution of Mechanical Engineers, 2013)The increasing demand of energy efficiency and the utilisation of small-scale energy sources require efficient, small and versatile turbines. Supersonic turbines have a high power density and therefore small size and fewer ... -
Profile loss and turbulence modelling in radial outflow turbine cascades
Proceedings of the European Turbomachinery Conference (The European Turbomachinery Society, 2023)Radial outflow turbines (ROTs) offer an alternative for single stage high-work axial turbines in steam and organic Rankine cycle applications. Their main benefits are lower Mach number levels, improved design and off-design ... -
Study of the Intelligent Control and Modes of the Arctic-Adopted Wind–Diesel Hybrid System
(MDPI, 11.07.2021)For energy supply in the Arctic regions, hybrid systems should be designed and equipped to ensure a high level of renewable energy penetration. Energy systems located in remote Arctic areas may experience many peculiar ... -
Thermodynamic and turbomachinery design analysis of supercritical Brayton cycles for exhaust gas heat recovery
(Elsevier Ltd., 01.11.2018)Significant amount of energy is wasted in engine systems as waste heat. In this study, the use of supercritical Brayton cycles for recovering exhaust gas heat of large-scale engines is investigated. The aim of the study ...
