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Radiator Heated With Solar Panel CFD Simulation

$155.00 $32.00

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In this project fluid heat exchange is simulated inside the radiator pipes, which is heated by a solar panel.

 

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Description

Radiator Introduction

Radiators are one of the most common heating devices in homes and office spaces and have a great impact on the energy consumption rate. In a radiator, heat transfer increases due to factors such as increased airflow along hot surfaces or increased temperature difference between ambient air and the heat source.

Project description

In this project fluid heat exchange is simulated inside the radiator pipes, which is heated by a solar panel. The simulations are done for 0.01 and 0.05 Kg/s fluid mass inlet and two different types of pipe, adiabatic and convective. The energy model is activated and the standard k-epsilon model with standard wall function is used for analyzing the fluid flow.

Radiator Geometry and mesh

The geometry for analyzing this simulation consists of a room and a radiator on one side of the room. Geometry is designed in ANSYS design modeler® and is meshed in ANSYS meshing®. The meshes used for this geometry are unstructured and the total number of mesh cells is 2031556.

The following figure shows the geometry of the radiator.

heat exchange

The following figure shows the radiator meshing.

radiatorCFD simulation

The assumptions considered in this project are:

  • Simulation is done using a pressure-based solver.
  • The present simulation and its results are considered to be steady and do not change as a function time.
  • The effect of gravity has not been taken into account.

The applied settings are recapitulated in the following table.

(radiator)

Models
Viscous model k-epsilon
k-epsilon model standard
near-wall treatment standard wall function
Energy on
Cell zone conditions
Fluid water
Solid Copper Source term: 242424.242 W/m3
(radiator) Boundary conditions
Inlet Mass flow inlet
Mass flow rate 0.05 Kg/s , 0.01 Kg/s
Turbulent intensity 5 %
Turb. Visc. ratio 10
Outlet Pressure outlet
Gauge pressure 0 Pa
Turbulent intensity 5 %
Turb. Visc. ratio 10
Walls (radiator)
 

Panel wall

Thermal condition convective
heat transfer coeff. 5 W/m2K
Free stream temp. 300 K
Thermal condition convective
Target face heat transfer coeff. 5 W/m2K
Free stream temp. 300 K
Thermal condition Heat flux
Pipe wall(adiabatic setting) heat flux 0 W/m2
Heat generation rate 0 W/m3
Thermal condition convective
Pipe wall(convective setting) heat transfer coeff. 5 W/m2K
Free stream temp. 300 K
(radiator) Solution Methods
Pressure-velocity coupling   SIMPLE
Spatial discretization pressure Second-order
momentum second-order upwind
energy second-order upwind
turbulent kinetic energy first-order upwind
turbulent dissipation rate first-order upwind
(radiator) Initialization
Initialization method   Standard
gauge pressure 0 Pa
velocity (x,y,z) (0,0, 1.629489) m/s-1
temperature 300 K
Turbulent kinetic energy 0.009957127 m2/s2
Turbulent dissipation rate 0.8880291 m2/s3

Radiator Results

The temperature, velocity, and pressure contours for different simulation settings are obtained.

 

All files, including Geometry, Mesh, Case & Data, are available in Simulation File. By the way, Training File presents how to solve the problem and extract all desired results.

This ANSYS Fluent project includes CFD simulation files and a training movie.

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