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RISExperimental Investigations on the Pressure Fluctuations in the Sealing Gap of Dry Gas Seals With Embedded Pressure Sensors
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Dry gas–lubricated noncontacting mechanical seals (DGSs), most commonly found in centrifugal compressors, prevent the process of gas flow into the atmosphere. Especially when high speed is combined with high pressure, DGS ...
PDA Laser Measurements of Droplet-Laden Flows in a Four-Stage Axial Compressor
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Droplet-laden flows play a significant role in the development of turbomachinery. For example, fine water droplets are injected into the flow path of axial compressors to increase the power output of gas turbines by making ...
A Novel Test Rig Using Air for Investigation of Vibration and Interaction of Two Steam Turbine Control Valves
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The governing of steam turbines is often realized by a set of two or more valves, which control the amount of steam entering the turbine. During part-load operation forces caused by pressure fluctuations and turbulence are ...
Flow-Induced Steam Valve Vibrations—A Literature Review of Excitation Mechanisms, Preventive Measures, and Design Improvements
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Steam turbine inlet valves are used to control the power output of steam turbines for power generation. These valves may be subject to vibration under certain operating conditions, especially in part-load operation. Several ...
Condensation in Radial Turbines—Part I: Mathematical Modeling
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In this two-part paper, the investigation of condensation in the impeller of radial turbines is discussed. In Paper I, a solution strategy for the investigation of condensation in radial turbines using computational fluid ...
Condensation in Radial Turbines—Part II: Application of the Mathematical Model to a Radial Turbine Series
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In the second part of this two part paper, the condensation process and the movement of the liquid phase near the impeller blades of a radial turbine are studied. The investigation methodology presented in part 1 is applied ...
Clarifying the Physics of Flow Separations in Steam Turbine Inlet Valves at Part Load Operation and Improved Design Considerations
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In steam turbine inlet valves used to adjust the power output of large steam turbines, the through-flow is reduced by lowering the valve plug and hence reducing the cross-sectional area between the plug and the seat. At ...
Cycle Calculations of a Small-Scale Heat Removal System With Supercritical CO2 as Working Fluid
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In the case of an accident in a nuclear power plant with combined initiating events (loss of ultimate heat sink and station blackout), an additional heat removal system could transfer the decay heat from the core to an ...
Experimental Data of Supercritical Carbon Dioxide (sCO2) Compressor at Various Fluid States
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper presents experimental data on a centrifugal compressor operated with CO2. Temperature and pressure at the inlet of the compressor are varied to cover the supercritical region from the liquid-like to the gas-like ...
Numerical Investigation on the Time Variant Flow Field and Dynamic Forces Acting in Steam Turbine Inlet Valves
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The unsteady flow in inlet valves for large steam turbines used in power stations was investigated using the method of computational fluid dynamics (CFD). As the topology of the flow depends on the stroke and the pressure ...