||Modeling of a Condenser in Dynamic Operation Using Comsol Multiphysics Software
FANNOU JEAN LOUIS COMLAN ,
DOKO KOUANDETÉ VALERY ,
PRODJINONTO Vincent ,
DEGAN GÉRARD ,
SANYA EMILE ADJIBADÉ ,
||Physical Science International Journal
||This paper is about modelling in dynamic operation the heat exchanger system using as condenser
in one dimension characterized by two coaxial tubes with ribbed inner tube by using the equations
of mass, momentum and energy conservation. The Comsol PDE interface is used to simulate the
monophasic and biphasic flows of refrigerant. Heat transfer in water and inner wall of the
condenser are modeled with two Heat Transfer Interfaces (solid, fluid) in Comsol software.
The model has been validated by comparing the numerical and experimental results obtained with
the direct expansion geothermal heat pump. The analysis of the comparative results shows that the obtained model adequately fits the experimental data with an average deviation of less than 5%.
Therefore, it proves that it's a good model which can be used for simulation purposes. This
developed numerical model was used to simulate the superheating, condensing and subcooling
phases in the condenser. Vapor quality, pressure, enthalpy of the refrigerant and water
temperature are also simulated.
||Dynamic operation; comsol multiphysics software; deviation; PDE
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