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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 ...
Flow Control Methods and Their Applicability in Low-Reynolds-Number Centrifugal Compressors—A Review
(MDPI, 2018)
The decrease in the performance of centrifugal compressors operating at low Reynolds numbers (e.g., unmanned aerial vehicles at high altitudes or small turbomachines) can reach 10% due to increased friction. The purposes ...
Loss Development Analysis of a Micro-Scale Centrifugal Compressor
(Elsevier, 2018)
The ever-increasing demand for more efficient energy conversion has placed designers under increasing pressure to develop processing equipment that can meet contemporary needs. It has long been known that a decreasing ...
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 ...
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 ...
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 ...
Aksiaalisen labyrinttitiivisteen virtaustekninen suunnittelu
(1994)
Tutkimuksessa selvitettiin eri laskentamenetelmien sopivuutta labyrinttitiivisteen vuodon arviointiin. Tutkimus perustuu julkaistuun kirjallisuuteen ja aikaisemmin suoritettuihin ja raportoituihin koetuloksiin. Omia ...
On the Reversed Brayton Cycle with High Speed Machinery
(1996)
This work was carried out in the laboratory of Fluid Dynamics, at Lappeenranta University of Technology during the years 1991-1996. The research was a part of larger high speed technology development research. First, there ...