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 | Lai, Kin Hang | - |
| dc.identifier.uri | https://theses.lib.polyu.edu.hk/handle/200/9720 | - |
| dc.language | English | en_US |
| dc.publisher | Hong Kong Polytechnic University | - |
| dc.rights | All rights reserved | en_US |
| dc.title | Developing a simplified model for chiller optimization | en_US |
| dcterms.abstract | This study presents the method, analysis and result of constructing a simplified performance model to achieve chiller optimization. Energy conservation is always a banner of a world issue. Surveys and researches have been done to investigate the energy consumption portion in commercial buildings, concluding that HVAC system is the dominant energy use. [1-3]The control on energy demanding is unwise since there is no absolute rule to control the demand of cooling capacity. Meanwhile, the improvement of chiller operation can be an efficient way to reduce the total energy used by the HVAC system. The purpose of this study was to build the simplified model based on the actual site measurement data. The analysis on the measured data and the model built from different chillers' characteristics had been done. In order to achieve the goal, site measurement was performed by months. The selection of buildings was considered based on different buildings and chillers' characteristics. These site measurement data was further analyzed and transformed into the desired form, the normalized Coefficient of Performance with the corresponding Part load ratio. A extend function from excel, @Risk, was implemented to calculate the most probable value of the normalized COP to represent the value at that PLR range. Different performance model were built by these calculated data and different validation tests were used as indicators to select the final model. The results showed that the model including all the chillers selected in the building selection was selected as the final simplified model consideration. The finalized model was being compared with some of the result performed by other researchers and discussed with certain possible problems. Overall, the most probable performance value was discovered which could be implemented into the future consideration on the construction of chiller plant, expressing the successful of the construction of the simplified model focusing in chiller optimization. | en_US |
| dcterms.extent | xii, 60, 2 pages : color illustrations | en_US |
| dcterms.isPartOf | PolyU Electronic Theses | en_US |
| dcterms.issued | 2018 | 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 -- Equipment and supplies | en_US |
| dcterms.LCSH | Air conditioning -- Energy conservation | en_US |
| dcterms.LCSH | Buildings -- Energy conservation | en_US |
| dcterms.accessRights | restricted access | en_US |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| 991022168752403411.pdf | For All Users (off-campus access for PolyU Staff & Students only) | 2.52 MB | Adobe PDF | View/Open |
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