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RISPerformance Comparison of Enthalpy Recovery Devices Using Liquid Desiccant and Desiccant Wheel
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Heat recovery between outdoor air and indoor exhaust air is an effective approach for energy-saving in the air-conditioning system. Performances of enthalpy recovery devices using liquid desiccant (LD) and desiccant wheel ...
An Aerodynamic Investigation of the Last-Stage Turbine in an Upgraded Gas Turbine
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Due to the lengthy certification process for newly designed turbine blades, product upgrading of industrial gas turbine units is often performed solely on compressor and combustor. Since their inlet conditions are significantly ...
An Evaluation Approach for the Stall Margin Enhancement With Stall Precursor Suppressed Casing Treatment
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: It is known that a kind of stall precursorsuppressed (SPS) casing treatment can be used to enhance compressor stall margin (SM) without recognizable efficiency loss. The further requirement in this regard is to develop an ...
Basic Studies of Flow Instability Inception in Axial Compressors Using Eigenvalue Method
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper applies a theoretical model developed recently to calculate the flowinstability inception of an axial transonic single stage compressor. After several calculation methods are compared, the singular value ...
Analysis on the Mechanism of Rotating Stall Inner a Pump Turbine in Pump Mode Based on the Proper Orthogonal Decomposition
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: An in-depth understanding of stall behavior is essential to improve the safe and stable operation of the pump turbine. In this research, the detached eddy simulation (DES) is used to investigate the various characteristics ...
Calculation of Flow Instability Inception in High Speed Axial Compressors Based on an Eigenvalue Theory
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper applies a theoretical model developed recently to calculate the flow instability inception point in axial high speed compressors system with tip clearance. After the mean flow field is computed by 3D steady ...
Further Investigation on Transonic Compressor Stall Margin Enhancement With Stall Precursor Suppressed Casing Treatment
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A kind of casing treatment, named as stall precursorsuppressed (SPS), has been developed recently, which was proved to be able to effectively improve stall margin (SM) without significant efficiency loss in lowspeed axial ...
A Theory on the Onset of Acoustic Resonance in a Multistage Compressor
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A novel theoretical model of the internal flow field in multistage axial compressors based on an eigenvalue approach is developed, in order to predict the onset of acoustic resonance in aircraft engines. Using an example ...
Effect of RANS Method on the Stall Onset Prediction by an Eigenvalue Approach
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The eigenvalue approach is a recently developed compressor stability model used to predict stall onset. In this model, the flow field from a Reynolds-averaged Navier–Stokes (RANS) simulation provides the basic flow. This ...
Simulation and Measurement of Refractive Index Variation in Localized Rapid Heating Molding for Polymer Optics
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Localized rapid heating process utilizing carbide-bonded graphene-coated silicon molds is a high-efficiency and energy-saving technique for high-volume fabrication of polymer optics. The graphene coating is used as a rapid ...