| Author: | Huang, Yawen |
| Title: | A study of water demand at a university hall |
| Advisors: | Wong, L. T. (BSE) |
| Degree: | M.Eng. |
| Year: | 2017 |
| Subject: | Hong Kong Polytechnic University -- Dissertations Water consumption -- Measurement Water-supply |
| Department: | Department of Building Services Engineering |
| Pages: | ix, 104 pages : color illustrations |
| Language: | English |
| Abstract: | As the preliminary step of determining equipment used for water supply system, calculation of water demand load serves as an important role. Different regions have defined the corresponding water quota values for different types of buildings in standards for designing the water supply system. In Mainland China, statistical methods including the probability evaluation method and the quadratic average method are commonly used to develop the water quota for buildings in a specific type. However, some conventional methods have been found to overestimate water supply load of some types of buildings. In order to exam this tendency for the student hall, this study focused on the students living in the Hung Hom Halls of Residence of the Hong Kong Polytechnic University and analyzed the characteristics of their usage of fresh water and life style. The cumulative method, which is composed of duration discharge time, flow rate, frequency per hour, was applied based on data from the survey carried out in February 2017. Time series loads, such as hourly, daily demand were derived by a software named Origin based on data from the site measurement carried out in March 2017 by using the ultrasonic flowmeter. As an underestimating tendency of the hourly variation coefficient and an overestimating tendency of the water quota for the collective dormitory defined among the design standards of Mainland China and British were clarified and the feasibility of the cumulative method in college dormitory was identified, examination on the standard values for other types of buildings and promote the accuracy of the cumulative method based on sufficient research study on each parameters included in this method could be increasingly important, which may contribute to saving water and energy. |
| Rights: | All rights reserved |
| Access: | restricted access |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| 991021980635003411.pdf | For All Users (off-campus access for PolyU Staff & Students only) | 2.01 MB | Adobe PDF | View/Open |
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