Publications related to Axial compressor

Fire performance of water-cooled cellular GFRP columns

Structural fire endurance experiments were conducted on full-scale cellular glass fiber reinforced (GFRP) columns under axial compression and subjected to ISO 834 fire exposure from one side. Unprotected columns could resist fire for more than 30 min, whic ...

Springer-Verlag New York, Ms Ingrid Cunningham, 175 Fifth Ave, New York, Ny 10010 Usa2010

Fire endurance performance of cellular GFRP columns with water-cooling system

Thomas Keller, Christian Ludwig, Yu Bai

Experimental results on the fire endurance of full-scale glass fiber-reinforced polymer (GFRP) composite columns are reported in this paper. The pultruded four-cell profiles were first loaded to axial compression (uniform serviceability stress of 5 MPa) an ...

DEStech Publications Inc.2010

High-speed flow visualization in a pump-turbine under off-design operating conditions

François Avellan, Mohamed Farhat, Vlad Hasmatuchi, Steven Roth, Francisco Botero

The flow hydrodynamics in a low specific speed radial pump-turbine reduced scale model is experimentally investigated under off-design operating conditions in generating mode. Wall pressure measurements, in the stator, synchronized with high-speed flow vis ...

International Association For Hydraulic Research2010

Transition of Bubbly Flow in Vertical Tubes: Effect of Bubble Size and Tube Diameter

John Richard Thome

In a companion paper ("Modelling Bubbly Flow by population Balance Technique Part I: Axial Flow Development and Its Transitions, " ASME J. Fluids Eng), a two fluid model along with a multiclass population balance technique has been used to find out compreh ...

American Society of Mechanical Engineers2009

Experimental investigation of a direct driven radial compressor for domestic heat pumps

Daniel Favrat, Jürg Alexander Schiffmann

The presence of oil in domestic heat pumps is an obstacle toward higher efﬁciency, particularly for enhanced surface evaporators and for advanced concepts based on two- stage cycles. Very compact direct driven radial compressors supported on oil-free beari ...

2009

EXPERIMENTAL INVESTIGATION OF FLOW INSTABILITIES AND ROTATING STALL IN A HIGH-ENERGY CENTRIFUGAL PUMP STAGE

François Avellan, Maher Kayal, Mohamed Farhat, Laurent Fabre, Stefan Berten, Philippe Dupont

In centrifugal pumps, the interaction between the rotating impeller and the stationary diffuser generates specific pressure fluctuation patterns. When the pump is operated at off design conditions, these pressure fluctuations increase. The resulting rise o ...

ASME2009

SURFACE ROUGHNESS IMPACT ON FRANCIS TURBINE PERFORMANCES AND PREDICTION OF EFFICIENCY STEP UP

François Avellan, Pierre Maruzewski, Vlad Hasmatuchi, Henri-Pascal Mombelli

In the process of turbine modernizations, the investigation of the influences of water passage roughness on radial flow machine performance is crucial and validates the efficiency step up between reduced scale model and prototype. This study presents the s ...

2009

Experimental Evidence of Hydroacoustic Pressure Waves in a Francis Turbine Elbow Draft Tube for Low Discharge Conditions

François Avellan, Christophe Nicolet

The complex three-dimensional unsteady flow developing in the draft tube of a Francis turbine is responsible for pressure fluctuations, which could prevent the whole hydropower plant from operating safely. Indeed, the Francis draft tube is subjected to inl ...

2009

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Axial compressor

Fire performance of water-cooled cellular GFRP columns

Fire endurance performance of cellular GFRP columns with water-cooling system

Feasibility analysis of a micro gas turbine for hybrid cycle

High-speed flow visualization in a pump-turbine under off-design operating conditions

Delamination of pultruded glass fiber-reinforced polymer composites subjected to axial compression

Transition of Bubbly Flow in Vertical Tubes: Effect of Bubble Size and Tube Diameter

Experimental investigation of a direct driven radial compressor for domestic heat pumps

EXPERIMENTAL INVESTIGATION OF FLOW INSTABILITIES AND ROTATING STALL IN A HIGH-ENERGY CENTRIFUGAL PUMP STAGE

SURFACE ROUGHNESS IMPACT ON FRANCIS TURBINE PERFORMANCES AND PREDICTION OF EFFICIENCY STEP UP

Experimental Evidence of Hydroacoustic Pressure Waves in a Francis Turbine Elbow Draft Tube for Low Discharge Conditions

Graph Chatbot

Chat with Graph Search

High-speed flow visualization in a pump-turbine under off-design operating conditions

Transition of Bubbly Flow in Vertical Tubes: Effect of Bubble Size and Tube Diameter

Experimental investigation of a direct driven radial compressor for domestic heat pumps

Experimental Evidence of Hydroacoustic Pressure Waves in a Francis Turbine Elbow Draft Tube for Low Discharge Conditions

Fire endurance performance of cellular GFRP columns with water-cooling system

Fire performance of water-cooled cellular GFRP columns

Feasibility analysis of a micro gas turbine for hybrid cycle

EXPERIMENTAL INVESTIGATION OF FLOW INSTABILITIES AND ROTATING STALL IN A HIGH-ENERGY CENTRIFUGAL PUMP STAGE

Delamination of pultruded glass fiber-reinforced polymer composites subjected to axial compression

SURFACE ROUGHNESS IMPACT ON FRANCIS TURBINE PERFORMANCES AND PREDICTION OF EFFICIENCY STEP UP