Numerical Investigation of Thermal Storage Performance of a Fluidized Sand Bed

Hiçdurmaz, Serdar
Tarı, İlker


Numerical investigation of effective surge tank dimensions in hydropower plants under various hydraulic conditions
Berberoğlu, Pınar; Bozkuş, Zafer; Department of Civil Engineering (2013)
In water conveyance systems, sudden changes in the flow velocity cause a phenomenon called waterhammer associated with high pressure head changes. Unless a control device is used as a precaution, waterhammer may result in costly damages and even in some cases, loss of human lives. In light of this concept, different control devices that can protect the systems against waterhammer are introduced so that the great pressure differences are absorbed and the system is maintained undamaged. In this thesis, the ma...
Numerical investigation of coupled heat and mass transfer inside the adsorbent bed of an adsorption cooling unit
Solmus, Ismail; Rees, D. Andrew S.; Yamali, Cemil; Baker, Derek Keıth; KAFTANOĞLU, BİLGİN (2012-05-01)
In this study, the influence of several design parameters on the transient distributions of temperature, pressure and amount adsorbed in the radial direction of a cylindrical adsorbent bed of an adsorption cooling unit using silica gel/water have been investigated numerically. For this purpose, a transient one-dimensional local thermal non-equilibrium model that accounts for both internal and external mass transfer resistances has been developed using the local volume averaging method. For the conditions in...
Numerical investigation of self-organization and stable burning conditions of moderate pressure glow discharges in argon gas
Eylenceoğlu, Ender; Rafatov, İsmail; Department of Physics (2011)
In this study numerical modelling of a moderate pressure DC glow discharge plasma is car- ried out in 1D and 2D geometry. The governing equations include continuity equations for the plasma species (electrons, positive ions and metastable atoms), the electron energy equation (EEE), Poisson equation for the electric field in the discharge volume and the surface charge equation on the dielectric side walls. The electron transport coefficients such as the electron diffusion and mobility as well as the electron-imp...
Numerical investigation of bubbling fluidized bed to be used as high temperature thermal energy storage
Hiçdurmaz, Serdar; Tarı, İlker; Department of Mechanical Engineering (2017)
A thermal energy storage unit designed to be used in a solid particle concentrated solar energy system is analysed with the help of a commercial Computational Fluid Dynamics tool. Hydrodynamics of the bubbling fluidized sand bed of which dimensions are 0.28 m x 1 m x 0.025 m to be used as direct contact heat exchanger are modelled and validated. Geldart B type particles with diameter of 275 micron and density of 2500 kg/m3 are used in modelling of bubbling fludized sand bed. Syamlal O’Brien drag model with ...
Numerical investigation of forced convection thermal management of high power electronics on a rotary platform
Anıl, Calıskan; Tarı, İlker (null; 2015-08-12)
An package on a rotary platform including two components with 600 W, one component with 350 W and one small component with 70 W heat dissipation rates (1620 W total heat load) is numerically and experimentally investigated under steady state conditions. In order to avoid rotary joints and to reduce the cost, the thermal management solution for the heat dissipation is placed entirely on the rotary platform. The thermal management solution consists of heat sinks attached on vertical side surfaces of the platf...
Citation Formats
S. Hiçdurmaz and İ. Tarı, “Numerical Investigation of Thermal Storage Performance of a Fluidized Sand Bed,” 2017, Accessed: 00, 2021. [Online]. Available:,2e54cab65583012c,71b88bdd7079cb15.html?year=2017.