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Events / Activities
 

 
Technical Seminar on Dynamic Glass Technology - Introduction and Application
 


Date, time & venue

2019-07-23;6:30 -8:00 pm;Chan Yat Mei Sophie Room – 9/F

 

Topic: Technical Seminar on Dynamic Glass Technology - Introduction and Application

 

Organizer

Materials Division

 

 

Date, Time & Venue

 

23 July 2019, Tuesday, Time: 6:30 -8:00 pm at 9/F, Chan Yat Mei Sophia Room at the HKIE Headquarters,

 

 

Speaker:

 

Ir. Andrew Xie is the Senior Engineer of Ove Arup and Partners, which offers professional services across almost every aspect of today’s built environment.

Ir. Xie holds a BEng and MSc from the University of Hong Kong. He is a Chartered Engineer, a Member of HKIE and a BEAM Pro. He has contributed to two ultra-high-rise building which are taller than 500m and a number of complex boutique development. Currently his professional focus is the building envelope and the sustainability of the built environment.

 

 

Programme Highlights

 

Glass is one of the greatest invention of human being. In the building and infrastructure, it is widely used with great appreciation as a transparent shield that shelters the occupants against unfavorable weather but allowing an interaction in vision with the external environment. Traditional architectural glass with static characteristics can only be designed as an optimal solution for the annual statistics. It will lead to over-bright or over-shaded at certain circumstances. Now the dynamic glass is one of the new solution being able to correspond to a range of scenarios, enhancing the conform of occupants and improving the performance of the building. The dynamic glass can be passive which adapts to changing environment, or active which uses electrical intervention to tint. The following content will be discussed in the seminar:-

1)     The development of glass in architectural engineering

2)     The dilemma in the built-environment

3)     Dynamic glass technology

4)     Continued discussion - What is more we can do for a greener Hong Kong?

 

 

Registration & Enquiries

 

No. of Participants 80. No prior registration is required. CPD certificate will be issued after the talk. For enquiries, please contact Ir CS Lam at 91527659 or email lamchising@hotmail.com.





Report

 

Dynamic Glass Technology – Introduction and Application

By LAM Chi-sing

A Technical seminar on Dynamic Glass Technology –Introduction and Application was conducted on 23 July 2019. The speaker Ir Andrew Xie delivered the history of glass from the beginning when glass come from obsidian mineral in the old age and used for houseware. After industrialization, different glasses were developed. Float glass was invented in 1950 and launched in UK in 1959. Tempered glass was invented in 1874. Float glass consisted a number of composition and the major of which is silicon dioxide. The glass can absorb, let through and reflect solar energy. 

Solar energy consisted 53% of infrared light, ultra-violet 3% and 44% of visible light.

To reduce the solar transmitted and visible light transmittance, low-E coating application to glass is one of the energy saving method. Magnetron Sputtering Vapor Deposition (MSVD) process of solar central low E-coating and pyrolytic process with while passive low-E coating would be considered.

For balancing the shape of daylight in different seasons, dynamic glass technology was introduced. Two types of dynamic glass namely Thermos-chromic (TC) and electro-chromic (EC) were introduced. The former is passive, the latter is active.

Thermo-chromic glass is a component consisting of Suntuitive interlayer in between two glasses with one spacer and low-e coating film. It should become gradually change with the warmer and cooler. It based on changes in Transmission and solar heat gain coefficient (SHGC) of the Suntuitive window based on brightness of sun on the window.

In electro-chromic (EC) glass, the glass is in such way that the high visible light transmission, the high solar heat gain efficiency. It can have more than one tint zones within single glass unit. The glass has two products. It contained metal oxide sputtered coating type, another product consisted of Ion-conductor polymer laminated inside between two glass panels. It has a cable with plug for controller. In fact Dynamic glass is a new solution to help us to adapt to the changing environment.

321 words


Photo: souvenir presenting to the speaker Ir Andrew Xie –left second

 

 
 

 

 
 
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