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Theoretical and Experimental Investigation of a 34 Watt Radial-Inflow Steam Turbine with Partial-Admission

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Analytical and Numerical Investigation of a Small-scale Radial-Inflow Steam Turbine

This thesis compares experiments to the analytical and numerical investigation of a small-scale radial-inflow turbine (diameter of 15 mm). This turbine is part of the Fan-Turbine Unit (FTU). The turbine of this FTU propels the fan that recirculates the unu ...

2019

A New Miniature Wind Turbine for Wind Tunnel Experiments. Part II: Wake Structure and Flow Dynamics

Fernando Porté Agel, Majid Bastankhah

An optimized three-bladed horizontal-axis miniature wind turbine, called WiRE-01, with the rotor diameter of 15 cm is designed and fully characterized in Part I of this study. In the current part of the study, we investigate the interaction of the turbine ...

2017

Wind Turbine Wake Mitigation through Blade Pitch Offset

Fernando Porté Agel, Deepu Dilip

The reduction in power output associated with complex turbine-wake interactions in wind farms necessitates the development of effective wake mitigation strategies. One approach to this end entails the downregulation of individual turbines from its maximum ...

2017

In a future sustainable energy vision, in which diversified conversion of renewable energies is essential, vertical axis wind turbines (VAWTs) exhibit some potential as a reliable means of wind energy extraction alongside conventional horizontal axis wind ...

2016

A Large-Eddy Simulation Study of Vertical Axis Wind Turbine Wakes in the Atmospheric Boundary Layer

Fernando Porté Agel, Sina Shamsoddin

2016

Optimal Operations and Resilient Investments in Steam Networks

François Maréchal, Greta Martha Van Eetvelde, Laurent Gabriel Félix Alexandre Stéphane Bungener

Steam is a key energy vector for industrial sites, most commonly used for process heating and cooling, cogeneration of heat and mechanical power as a motive fluid or for stripping. Steam networks are used to carry steam from producers to consumers and betw ...

2016

Turbulent scale resolving modelling of rotating stall in low-pressure steam turbines operated under low volume flow conditions

Peter Ott, Benjamin Megerle, Ivan William McBean

Non-synchronous excitation under low volume operation is a major risk to the mechanical integrity of last stage moving blades (LSMBs) in low-pressure (LP) steam turbines. These vibrations are often induced by a rotating aerodynamic instability similar to r ...

2015

Unsteady Aerodynamics of Low-Pressure Steam Turbines Operating Under Low Volume Flow

Peter Ott, Benjamin Megerle, Ivan William McBean

Nonsynchronous excitation under low volume operation is a major risk to the mechanical integrity of last stage moving blades (LSMBs) in low-pressure (LP) steam turbines. These vibrations are often induced by a rotating aerodynamic instability similar to ro ...

American Society of Mechanical Engineers2014

The research scope of GTT includes efforts to increase reliability, efficiency and power output of gas turbines and aero engines. The most important areas of research are the following: fluid-structure interaction at forced response and flutter for turbine ...

2014

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Numerical simulation and stability analysis of an islanded power network comprising 40 MW of hydropower, 20 MW of wind power and 60 MW of gas-fired power plant are investigated. First, the modeling of each power plant is fully described. The wind farm is m ...

Springer Singapore2014