Full metadata record
| DC Field | Value | Language |
|---|---|---|
| dc.contributor | Department of Building Services Engineering | en_US |
| dc.contributor.advisor | Lee, Wai Ling (BSE) | - |
| dc.creator | Chen, Zeyi | - |
| dc.identifier.uri | https://theses.lib.polyu.edu.hk/handle/200/9096 | - |
| dc.language | English | en_US |
| dc.publisher | Hong Kong Polytechnic University | - |
| dc.rights | All rights reserved | en_US |
| dc.title | Optimizing extra-low temperature DX system | en_US |
| dcterms.abstract | The proposal of the extra-low temperature dedicated outdoor air system (XT-DOAS) could make fully use of the advantages of the dedicated outdoor air system (DOAS) as well as make it better applicable in the hot and humid area like Hong Kong, which could avoid the issues of the conventional air-conditioning (AC) system. This study is to optimize the XT-DOAS so as to have the best energy and thermal comfortable performance by the employment of the EnergyPlus simulation investigations. The simulations were carried out based on two equipment performance data from a pilot study and the manufacturer, and a realistic building and corresponding system characteristics. In order to optimize the system, three key variables of the system were focused, the supply air temperature (TSA), the treated outdoor air temperature (TOA) and the number of stages. It can be concluded that the optimal system configuration and setting were TOA 8°C, TSA 18°C and 2-stage which could have a relative desirable performance for both energy saving and thermal satisfaction. | en_US |
| dcterms.extent | viii, 76 pages : color illustrations | en_US |
| dcterms.isPartOf | PolyU Electronic Theses | en_US |
| dcterms.issued | 2017 | en_US |
| dcterms.educationalLevel | M.Eng. | en_US |
| dcterms.educationalLevel | All Master | en_US |
| dcterms.LCSH | Hong Kong Polytechnic University -- Dissertations | en_US |
| dcterms.LCSH | Air conditioning | en_US |
| dcterms.LCSH | Air conditioning -- Design and construction | en_US |
| dcterms.accessRights | restricted access | en_US |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| 991021959950203411.pdf | For All Users (off-campus access for PolyU Staff & Students only) | 2.99 MB | Adobe PDF | View/Open |
Copyright Undertaking
As a bona fide Library user, I declare that:
- I will abide by the rules and legal ordinances governing copyright regarding the use of the Database.
- I will use the Database for the purpose of my research or private study only and not for circulation or further reproduction or any other purpose.
- I agree to indemnify and hold the University harmless from and against any loss, damage, cost, liability or expenses arising from copyright infringement or unauthorized usage.
By downloading any item(s) listed above, you acknowledge that you have read and understood the copyright undertaking as stated above, and agree to be bound by all of its terms.
Please use this identifier to cite or link to this item:
https://theses.lib.polyu.edu.hk/handle/200/9096