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SUMMARY:Optimisation of multi-functional\, responsive and energy-efficient
  glazing facades - Michalis Michael\, Department of Engineering\, Universi
 ty of Cambridge
DTSTART:20200221T150000Z
DTEND:20200221T160000Z
UID:TALK140023@talks.cam.ac.uk
CONTACT:Dr Maria Marques de Carvalho
DESCRIPTION:Buildings are at the pivotal centre of our lives. We spend\, o
 n average\, 87-90% of our time in buildings. The characteristics of a buil
 ding\, its design\, its look and feel as well as its technical standards n
 ot only influence our productivity\, our wellbeing\, our moods and our int
 eractions with others\, but they also define how much energy is consumed i
 n and by a building\, particularly for heating\, ventilation\, cooling and
  lighting.\nThe envelope of a building has an important and direct effect 
 on its overall performance and whole-life cost. Glazing is particularly cr
 itical because it is the most vulnerable envelope element to heat gain and
  heat loss that counts for around 42% of the total building energy consump
 tion (U.S Department of Energy). However\, con-ventional static glazing te
 chnologies have relatively poor per-formance characteristics which cause s
 ignificant heat losses during winter and undesired heat gain in summer.\nT
 his project aims to develop an innovative high-performance closed cavity f
 acade (CCF) prototype\, combining static and dynamic glazing technologies 
 with integrated solar radiation control features and strategies in order t
 o\, besides achieving a high thermal resistance\, also be able to dynamica
 lly control (harvesting or rejecting) the incident solar radiation\, optim
 ising the incoming thermal and lighting flows. In this regard\, the main o
 bjective of this research is to investigate the thermal and visual perform
 ance of glazing technologies and glazing systems’ solu-tions\, in the co
 ntext of low-energy office buildings with large sea-sonal heating and cool
 ing loads variations\, without compromising the indoor environmental quali
 ty (IEQ).\nExperimental research will be used\, in combination with nume-r
 ical simulations and optimisation methods (Figure 1)\, to assess and optim
 ise the overall performance of glazing systems and associated solar radiat
 ion control features. The ultimate aim is to devise and develop a multi-fu
 nctional high-performance closed cavity facade prototype\, incorporating n
 ew adaptive features like switchable technologies and advanced solar contr
 ol strategies\, in order to achieve optimised configuration and geometry f
 or maximising energy saving in office buildings whilst minimising the whol
 e-life cost and ensuring the required IEQ level.\nAt a preliminary case st
 udy\, simulating the performance of the MATELab (Mobile Adaptive Technolog
 ies Experimental Lab) at the University of Cambridge\, two scenarios were 
 studied\, one with CCF incorporating shading system and control strategies
  and the other one without any shading features. The study concluded that 
 the employed CCF with incorporated shading system and control strategy res
 ulted in a yearly reduction of 68% of the cooling energy consumption compa
 red to the conventional insulated double glazing units.
LOCATION:Seminar Room\, Civil Engineering Building\, JJ Thomson Avenue 7a.
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