Numerical Analysis of Phase Change Material Characteristics in a Thermal Energy Storage Heat Exchanger

Nıma, Bonyadı
Somek, Suleyman Kazım
Ozalevlı, C Cıhan
Baker, Derek Keıth
Tarı, İlker


Numerical Analysis of Phase Change Material Characteristics Used in a Thermal Energy Storage Device
Bonyadi, Nima; Somek, Suleyman Kazim; Ozalevli, Cemil Cihan; Baker, Derek Keıth; Tarı, İlker (2018-01-01)
In this study, a numerical analysis is performed to investigate the freezing process of phase change materials (PCM) in a predesigned thermal energy storage (TES) device. This TES device is integrated with a milk storage cooling cycle operating under predefined practical conditions. Using this cooling unit, 100 litres of milk is kept cool at 4 degrees C for 48 hours before it is collected. A 2-D model of the TES device is developed in COMSOL Multiphysics to analyze the phase change performance of water-base...
Numerical analysis of phase change material characteristics used in a thermal energy storage device
Bonyadi, Nima; Kazım, Sömek; Özalevli, Cihan; Baker, Derek Keıth; Tarı, İlker (null; 2015-05-05)
Numerical modelling of spatio-temporal patterns in a DC-driven gas discharge-semiconductor system
Özden, Gözde; Rafatov, İsmail; Karasözen, Bülent; Department of Scientific Computing (2015)
In this thesis, numerical modelling of temporal and spatial pattern formation in the planar layered system, consisted of a DC driven planar gas discharge layer, coupled to high ohmic semiconductor layer, is carried out in 1D and 2D Cartesian geometry. Numerical model includes continuity equations for ions and electrons, the Poisson equation for the electric field, the energy balance equation for the background gas. The conditions correspond to a transition from the Townsend regime to the glow discharge. Cal...
Numerical calculation of rough turbulent boundary layer for incompressible fluids
Atay, Görkem; Bayer, Özgür; Çıray, Cahit; Department of Mechanical Engineering (2018)
In this thesis, a numerical code for calculating turbulent boundary layer parameters is developed. Two-dimensional turbulent flow over a rough flat plate with zero pressure gradient is numerically solved by using the integral method. Fluid mechanics formulations, such as momentum integral equation are coupled with the results of Nikuradse’s experiment. Throughout the calculation, turbulent boundary layer parameters, such as boundary layer thickness, displacement thickness, momentum thickness, local skin-fri...
Numerical simulation of ice accretion and consequent power loss estimation in wind turbine blades
Özgen, Serkan; Berker, Ayşe Meriç; Çakmak, Ali (null; 2019-07-01)
The aim of this study is to simulate atmospheric ice accretion on wind turbine blades and to estimate power losses. A computational tool is developed that comprises six modules, one for estimating the local flow velocity and the angle of attack using the Blade Element Momentum Method (BEM), one for solving the flow field employing the Panel Method, one for computing the droplet trajectories with the Lagrangian approach, a module for calculating the convective heat transfer coefficients using the Integral Bo...
Citation Formats
B. Nıma, S. K. Somek, C. C. Ozalevlı, D. K. Baker, and İ. Tarı, “Numerical Analysis of Phase Change Material Characteristics in a Thermal Energy Storage Heat Exchanger,” presented at the ASME-ATI-UIT 2015 Conference on Thermal Energy Systems: Production, Storage, Utilization and the Environment (2015), Napoli, İtalya, 2015, Accessed: 00, 2021. [Online]. Available: