Full metadata record
| DC Field | Value | Language |
|---|---|---|
| dc.contributor | Department of Building Services Engineering | en_US |
| dc.contributor.advisor | Chan, M. Y. (BSE) | - |
| dc.creator | Cheung, Man Him Eric | - |
| dc.identifier.uri | https://theses.lib.polyu.edu.hk/handle/200/8212 | - |
| dc.language | English | en_US |
| dc.publisher | Hong Kong Polytechnic University | - |
| dc.rights | All rights reserved | en_US |
| dc.title | Chiller plant optimization with considering the thermal comfort with the use of IES | en_US |
| dcterms.abstract | Climate change has become an increasing concern for the environment on a global scale, and here in Hong Kong, it has been recognised as an issue that needs to be dealt with urgently. One major concern is the electricity consumption that gives rise to carbon emissions, where buildings consume 90% of the city's overall electricity usage and more than 50% of this is for the central air conditioning systems required for the sub-tropical climate. Air-conditioning is essential in order to keep building occupants thermally comfortable and more importantly to ensure the productivity of employees, as it has been proven that thermal comfort has a direct effect on productivity. Thus, this study aims to investigate the relationship between indoor thermal comfort and indoor design temperature that may lead to potential energy and cost savings from the central air conditioning plant. With the use of building energy software, Integrated Environmental Solution (IES), the maximum tolerable indoor design temperature of a typical office environment is investigated whilst not compromising the level of indoor thermal comfort in terms of Predicted Mean Vote (PMV). The minimum allowable indoor dry bulb temperature has been stipulated in the BEC2012 as 23 degC and it has become a standard design temperature that most building developers typically use. However, is 23 degC the most energy efficient temperature to provide a thermally comfortable working area within an office building? In answer to this question, a number of scenarios are defined to test the maximum indoor design temperature from 23 degC up to 24.5degC. Results from the simulations show that even at 24.5degC, building occupants would still be able to work comfortably and thus not hinder productivity, and the temperature difference of 1.5 degC also leads to approximately 12.8% reduction in peak cooling load and energy consumption and subsequently provide an approximate HKD 36,898,414.3 of annual cost saving in terms of electricity tariff. | en_US |
| dcterms.extent | 62 pages : color illustrations | en_US |
| dcterms.isPartOf | PolyU Electronic Theses | en_US |
| dcterms.issued | 2015 | en_US |
| dcterms.educationalLevel | All Master | en_US |
| dcterms.educationalLevel | M.Eng. | en_US |
| dcterms.LCSH | Architecture and energy conservation. | en_US |
| dcterms.LCSH | Office buildings -- Air conditioning. | en_US |
| dcterms.LCSH | Work environment -- Psychological aspects. | en_US |
| dcterms.LCSH | Hong Kong Polytechnic University -- Dissertations | en_US |
| dcterms.accessRights | restricted access | en_US |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| b28261161.pdf | For All Users (off-campus access for PolyU Staff & Students only) | 1.7 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/200/8212