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Full-Text Articles in Engineering
Online Optimal Control Of The Central Chilling System In A Super High-Rise Commercial Building, Shengwei Wang, Zhenjun Ma
Online Optimal Control Of The Central Chilling System In A Super High-Rise Commercial Building, Shengwei Wang, Zhenjun Ma
Faculty of Engineering - Papers (Archive)
This paper presents the online optimal control strategies of the central chilling system in a super high-rise building in Hong Kong. The work presented aims at developing a package of optimal control strategies and evaluating their energy saving potentials and finally implementing these strategies in the building to enhance its energy efficiency. Based on testing the effects of interactions within the cooling water system and chilled water system on the system operation performance, the optimal control strategies for the cooling water system and variable speed pumps with different installations in the secondary chilled water system are developed. These strategies are …
A Galvanic Cell Driven Controlled Release System Based On Conducting Polymers, Caiyun Wang, Chee O. Too, Philip G. Whitten, G G. Wallace
A Galvanic Cell Driven Controlled Release System Based On Conducting Polymers, Caiyun Wang, Chee O. Too, Philip G. Whitten, G G. Wallace
Faculty of Engineering - Papers (Archive)
A self-powered controlled release system is achieved via galvanic coupling of a conducting polymer and a zinc anode. Release of an anionic dye molecule, phenol red (PR), as the polymer is reduced is quantified. Triggered release using the galvanic cell is demonstrated in a freeze-thaw experiment when melting of the electrolyte completes the galvanic cell and enables oxidation/reduction to occur.
Study On A Magnetorheological Fluid Bladder Spring For Isolation System, Xianzhou Zhang, Weihua Li, Xingyu Wang
Study On A Magnetorheological Fluid Bladder Spring For Isolation System, Xianzhou Zhang, Weihua Li, Xingyu Wang
Faculty of Engineering - Papers (Archive)
Vibration reduction and isolation plays an important role in protecting machinery and structures from unwanted vibration related problems. A variety of passive and active isolation systems have been developed for vibration suppression. However, passive systems are only effective for narrow frequencies while passive systems usually have high costs.