Subject Code : ENGT5141
Country : Australia
Assignment Task:

Task:

The learning outcomes that are assessed by this coursework are:
1 Demonstrate proficiency in analysing advanced thermal cycles and heat transfer modes and their applications
2 Design and model heat and mass transfer on complex geometries using commercial or in-house computational codes and critically evaluate the results

 

Tasks to be undertaken:
AIM
The overall aim of this assignment is to demonstrate that you have a clear understanding of Thermal Analysis and Computational Fluid Dynamics (CFD) Methods, and the role these techniques play in development of heat and mass transfer systems, the benefits associated with their use and the problems and limitations encountered when using these methods. The above aim is to be achieved through a written report, not exceeding 3000 words.
 

CASE STUDY 1
In a heat recovery system, Cold water enters the counter-flow helical heat exchanger at Tc,in o C at a rate of mA ? kg/s, where it is used to recover heat from engine oil that enters the heat exchanger at Th,in o C at a rate of mB ? kg/s. For the bench mark case use a pitch distance of 100mm for the helical coil. Each student will generate 2 case studies - A bench mark case which corresponds to the boundary conditions in the table below – ( Use the row that matches the last ID of your student P No). And another case where you optimise the design and operation of the heat exchanger. The objective is to optimise the rate of heat transfer, within the constraints of 1m length and a fixed outer shell diameter of 250mm. Flow rates must be realistic!

 

You will need to work through the following steps
1. Geometry Creation: using Ansys Design Modeller or importing from other CAD software such as Creo, Solidworks. etc
2. Meshing the geometry: (Mesh)
3. Setting the boundary conditions: (setup)
4. Performing the simulation (Solution): Ansys fluent solver (steady state calculation)
5. Post processing the results:
CASE STUDY 2
The burner with the dimensions below should be built on meshed and solved in Ansys workbench using a basic combustion model (for methane-air mixture or any other mixture the student may opt to go for should be set in

 

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  • Uploaded By : Pearl
  • Posted on : April 09th, 2019
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