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Failure Investigation on Reheater Pendent Tubes Due to External Scale Exfoliation and Internal Scale Formation
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper presents failure investigation on reheater pendent SA213-T22 tubes through visual inspections, steam-side scale and tube wall thickness measurements, metallurgical examinations, and creep ...
Effect of Particle Shape on Constitutive Relation: DEM Study
Publisher: ASCE
Abstract: The influence of particle shape was evaluated under drained and undrained (constant volume) condition using three-dimensional (3D) cubical assemblies of spheres, ellipsoids, and cluster of spheres (a combination of seven ...
Optimum Mix Design for Internally Integrated Concrete with Crystallizing Protective Material
Publisher: American Society of Civil Engineers
Abstract: In this research, a silica-based crystallizing protective material was integrated into a fresh concrete mix to evaluate its efficacy in reducing water absorption while preserving the compressive strength level of the ...
A DEM Investigation on the Influence of Cyclic and Static Stress Ratios and State Variables on the Pore Water Pressure Generation in Granular Materials
Publisher: American Society of Civil Engineers
Abstract: A granular soil may undergo liquefaction failure due to excess pore water pressure (Δu) generation when subjected to cyclic loading such as an earthquake. Several past studies indicated Δu generation may be independent of ...
Critical State Soil Mechanics for Cyclic Liquefaction and Postliquefaction Behavior: DEM study
Publisher: ASCE
Abstract: Discrete-element method (DEM) simulations of three-dimensional (3D) assemblies of ellipsoid particles were used to evaluate the critical state (CS) for both drained and undrained (constant volume) conditions. A series of ...
Numerical Study on the Combustion and Performance Characteristics of a HCCI Engine Resulting from the Autoignition of Gasoline Surrogate Fuel
Publisher: American Society of Civil Engineers
Abstract: The objective of this study is to investigate the effect of engine speed, intake air temperature, intake air pressure, and compression ratio on combustion and performance characteristics in a homogeneous-charge ...
Finite Element Simulation of Magnetohydrodynamic Mixed Convection in a Double-Lid Driven Enclosure With a Square Heat-Generating Block
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Magnetohydrodynamic (MHD) mixed-convection flow and heat transfer characteristics inside a square double-lid driven enclosure have been investigated in this study. A heat-generating solid square ...
Multi-Objective Optimization of a Combined Power and Cooling Cycle for Low-Grade and Midgrade Heat Sources
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Optimization of thermodynamic cycles is important for the efficient utilization of energy sources; indeed, it is more crucial for the cycles utilizing low-grade heat sources where the cycle ...
Performance Analysis of a Rankine Cycle Integrated With the Goswami Combined Power and Cooling Cycle
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Improving the efficiency of thermodynamic cycles plays a fundamental role in reducing the cost of solar power plants. These plants work normally with Rankine cycles which present some disadvantages ...