| Author: | Wong, Kwok-wah |
| Title: | Design of chilled water system for high rise building |
| Degree: | M.Sc. |
| Year: | 1997 |
| Subject: | Tall buildings -- Air conditioning Refrigeration and refrigerating machinery Hong Kong Polytechnic University -- Dissertations |
| Department: | Multi-disciplinary Studies |
| Pages: | viii, 92 leaves : ill. ; 30 cm |
| Language: | English |
| Abstract: | There are difficulties in building services design for high rise building such as building sway (Berglund 1991), stack effect (Tamblyn 1991), vertical transportation problem, etc. Chilled water system is one of the design problems as a simple single system results in very high hydrostatic pressure due to the building height. Improper design causes high initial cost, operation cost and poor maintainability. This project aims to establish guidelines for designers in selecting a suitable system for high rise buildings with the aids of computer simulation. A survey of existing chilled water system designs for high rise building was carried out to give a general picture of existing designs. Characteristics of different types of design are discussed in detail. Computer program HTB2 and BECON are used to simulate the cooling loading and energy consumption of buildings. Energy consumption data of an existing high rise building is used to verify the accuracy of the computer program. Different types of chilled water system designs with building height ranging from 40 storeys to 80 storeys have been investigated and found that any system over 25 bar operating pressure are not recommendable whereas single system under 25 bar operating pressure is preferred. |
| Rights: | All rights reserved |
| Access: | restricted access |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| b14033380.pdf | For All Users (off-campus access for PolyU Staff & Students only) | 2.38 MB | Adobe PDF | View/Open |
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