Carrie, Logan (2017) Modelling of a Portable Air Conditioner. [USQ Project]
Abstract
With buildings getting larger and more people working inside within office spaces, the need to keep people comfortable while working and living in these buildings is ever increasing. One way to ensure that the inside environment is comfortable is through temperature control. This temperature control usually comes in the form of an air conditioning system such as a HVAC system for larger builds while smaller spaces would rely on wall mounted units. Due to the importance of these devices, the performance.
The use of CFD analysis has been used to address and understand fluid flow in other devices such as automobile engines and water networks. While the flow within these areas are complex, the flow within an air-conditioning system involves the changing of phases as well as continued heat transfer. As such, CFD analysis of these devices can be done to assess the performance of a design at certain working parameters such as temperature or pressure. One of the main goals of this dissertation is to simulate the fluid flow within the condenser of one of these air conditioning units using CFD.
Numerical models have also been created to assess the performance of these devices and model the flow and heat transfer under different operating conditions. It is also the aim of this dissertation to submit a model which calculates the heat transfer of a condenser unit under different environmental conditions using numerical methods.
The numerical and CFD models proposed within this dissertation only account of the single phase nature of the refrigerant within the condenser coil. As such, the values presented in the results section do not particularly agree with the experimental study values of which these models were based on. Towards the end of the dissertation as a part of the numerical modelling segment, it is proposed that a relationship between that of a finned coil and a normal coil could be found based on geometry changes and velocity of the flow. The findings of this relationship are also incomplete and require further work to accurately predict the amount of heat transfer changed based on geometry and velocity values.
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| Item Type: | USQ Project |
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| Item Status: | Live Archive |
| Additional Information: | Bachelor of Engineering (Honours) (Mechanical) |
| Faculty/School / Institute/Centre: | Historic - Faculty of Health, Engineering and Sciences - School of Mechanical and Electrical Engineering (1 Jul 2013 - 31 Dec 2021) |
| Supervisors: | Sharifian-Barforoush, Ahmad |
| Date Deposited: | 08 Sep 2022 03:59 |
| Last Modified: | 08 Sep 2022 03:59 |
| Uncontrolled Keywords: | temperature control; air conditioning system; fluid flow; condenser |
| URI: | https://sear.unisq.edu.au/id/eprint/40899 |
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