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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 ...
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 ...
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 ...
Greenhouse gas reduction potential by producing electricity from biogas engine wate heat using organic Rankine cycle
(Elsevier, 2016)
Organic Rankine cycles have been identified as a suitable technological option for converting low-grade heat into electricity with relatively high efficiency, and the organic Rankine cycle technology has been successfully ...
Centrifugal Compressor efficiency improvements and its environmental impact in waste water treatment
(Elsevier, 2015)
Energy costs typically dominate the life-cycle costs of centrifugal compressors used in various industrial and municipal processes, making the compressor an attractive target for energy efficiency improvements. This study ...
Analysis of radial-outflow turbine design for supercritical CO2 and comparison to radial-inflow turbines
(Elsevier, 2021-12-09)
Cycles using supercritical carbon dioxide have been recognized as potential future power technology. However, the turbines in these systems tend to experience very high rotational speeds and entail small physical sizes, ...
Study of the Intelligent Control and Modes of the Arctic-Adopted Wind–Diesel Hybrid System
(MDPI, 2021-07-11)
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 ...
Modelling of Low-Reynolds-Number Centrifugal Compressors: Challenges in Performance and Flow Control Prediction
(2018)
A low-Reynolds-number causes a performance deterioration in centrifugal compressors due to the relative increase in boundary layer thickness, tip clearance, and surface roughness. The degradation of the efficiency can be ...
Validation of the Axial Thrust Estimation Method for Radial Turbomachines
(Hindawi, 2021-02-24)
The fast preliminary design and safe operation of turbomachines require a simple and accurate prediction of axial thrust. An underestimation of these forces may result in undersized bearings that can easily overload and ...
Effect of non-ideally manufactured riblets on airfoil and wind turbine performance
(Elsevier, 2020-03-25)
Riblets are a passive flow control method, which can be used for drag reduction, especially with small wind turbines that have a low Reynolds number. Riblet manufacturing, however, is a challenging task and the required ...