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Thermoeconomic modeling of a small-scale gas turbine-photovoltaic-electrolyzer combined-cooling-heating-and-power system for distributed energy applications
(2018)
The purpose of this study is to investigate the potential of a small-scale, combined-cooling-heating-and-power system, consisting of a 1 MWe gas turbine subsystem coupled to a 0.5 MWe photovoltaic (PV) subsystem for ...
Thermo-fluid modeling of direct chill casting of metal alloys using an inverse finite element method
(Publ by Computational Mechanics Inc, 1992)
Direct chill (DC) casting is used extensively in the production of wrought nonferrous metals and alloys, particularly in the aluminum industry. For alloys, a semi-solid region known as the “mushy zone” and defined by the ...
Two-phase model for processing materials in semisolid state
(Affiliation: Worcester Polytechnic Inst, Worcester, United StatesCorrespondence Address: Alexandrou, Andreas N.Worcester Polytechnic Inst, Worcester, United States, 1998)
The importance of processing of metal and metal matrix composites in semisolid state is increasing quite rapidly due to the distinct advantages it offers over similar methods of near-net-shape making. In this investigation ...
The use of generalized eulerian–lagrangian formulations in composite materials processing
(1994)
The advantages of the Generalized Eulerian–Lagrangian (GEL) formulations in modeling and numerical solution of unsteady flow of fiber suspensions are discussed. This formulation offers the flexibility of selectively applying ...
Parametric study and cost analysis of a solar-heating-and-cooling system for detached single-family households in hot climates
(2015)
A solar-heating-and-cooling (SHC) system, consisting of a flat-plate solar collector array, a hot water storage tank, and an absorption chiller unit is designed and modeled to satisfy thermal loads (space heating, domestic ...
Flow development of Herschel-Bulkley fluids in a sudden three-dimensional square expansion
(1999)
The flow development of Herschel-Bulkley fluids in a sudden three-dimensional square expansion is studied numerically. The flow is modeled using the mixed-Galerkin finite element formulation to solve the conservation of ...
Determination of the rheological parameters of self-compacting concrete matrix using slump flow test
(2010)
The classification of a concrete mixture as self-compacting (SCC) is performed by a series of empirical characterization tests that have been designed to assess not only the flowability of the mixture but also its segregation ...
Thixotropic rheology of semisolid metal suspensions
(2001)
Understanding the time-dependent flow behavior of semisolid materials (SSM) is essential for the simulation of semisolid processes. During processing, the structure of the material changes with the processing history due ...
On the determination of yield surfaces in Herschel-Bulkley fluids
(1999)
Herschel-Bulkley fluids are materials that behave as rigid solids when the local stress τ is lower than a finite yield stress τ0, and flow as nonlinearly viscous fluids for τ > τ0. The flow domain then is characterized by ...