| Author: | Lang, Jun |
| Title: | Site test and validation of free cooling strategies for optimized energy performance in a super-high-rise building |
| Degree: | M.Eng. |
| Year: | 2011 |
| Subject: | Tall buildings -- Energy consumption -- China -- Hong Kong. Tall buildings -- Energy conservation -- China -- Hong Kong. Tall buildings -- Cooling -- China -- Hong Kong. Indoor air quality. Hong Kong Polytechnic University -- Dissertations |
| Department: | Department of Building Services Engineering |
| Pages: | xii, 117 leaves : ill. (some col.) ; 30 cm. |
| Language: | English |
| Abstract: | Energy consumption and indoor air quality (IAQ) have received increasing concern in modern commercial and office buildings. It is the hope of engineers to achieve the satisfied indoor air quality (IAQ) with minimum energy consumption. Then, one key factor, affecting the energy consumption and the indoor air quality (IAQ), is the outdoor air flow rate. To control the outdoor air ventilation is very important for reducing the energy consumption. Therefore, this dissertation considers the energy saving feasibility of free cooling strategies which can apply in primary air units (PAUs) while achieving satisfied indoor air quality (IAO) with minimum energy consumption in winter period in Hong Kong. The aim of the dissertation focuses on the optimized energy performance for using the free cooling strategies in a super-high-rise building in Hong Kong. According to the Hong Kong Observatory (HKO) records, outdoor dry-bulb temperature and outdoor air relative humidity in winter period was found to be feasible to implement free cooling strategies for improved operation. Through a series of calculations, the optimal point can be found. Certainly, the minimum requirement of fresh air flow provided by demand-controlled ventilation (DCV) strategy should be considered. The higher one of these two outdoor air flow rates is the real optimal setting point. |
| Rights: | All rights reserved |
| Access: | restricted access |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| b2449799x.pdf | For All Users (off-campus access for PolyU Staff & Students only) | 9.94 MB | Adobe PDF | View/Open |
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