Youth Involvement in an Innovative Coconut Value Chain by Mwalimu Menza
Potential For Electronic Glass For Commercial Buildings [Keith Murray]
1. Switchable variable-tint electro-Switchable variable-tint electro-
chromic (EC) windows in achromic (EC) windows in a
commercial building façade atcommercial building façade at
UK latitudesUK latitudes
Greenspace Research, LewsGreenspace Research, Lews
Castle College UHI, StornowayCastle College UHI, Stornoway
Keith MurrayKeith Murray
2. Windows are theWindows are the
weakest part of theweakest part of the
building envelope forbuilding envelope for
heat lossesheat losses
Windows of theWindows of the
Future?Future?
4. Internal wallInternal wall
surfacessurfaces
Low e-coating on the outer surface of the innerLow e-coating on the outer surface of the inner
pane of double glazingpane of double glazing
Inner glass
Inner glasspanepane
Outer glass pane
Outer glass pane
Air GapAir Gap
e-coatinge-coating
Solar Short Wave RadiationSolar Short Wave Radiation
D. GlazingD. Glazing
Long waveLong wave
RadiationRadiation
11. Building ±Building ± 4545ºº
orientationorientation
SE façadeSE façade
SW façadeSW façade
Hypothetical CommercialHypothetical Commercial
Building modelBuilding model
13. Urban Heat IslandUrban Heat Island
EffectsEffects
(UHI)(UHI)
For Central London, +32%For Central London, +32%
working hours (900-1800)working hours (900-1800)
+25+25ººCC
For Central Glasgow, (900-For Central Glasgow, (900-
1800)1800)
Summer months May-Summer months May-
SeptemberSeptember
14. Potential savingsPotential savings
electrical charge of 12p/kW-helectrical charge of 12p/kW-h
EC glazing on the three cardinalEC glazing on the three cardinal
façade (E;S;W)façade (E;S;W)
Saving in London~£17,000/aSaving in London~£17,000/a
Saving £7,000/a in Glasgow.Saving £7,000/a in Glasgow.
15. Current cost of EC glassCurrent cost of EC glass
~£450/m²~£450/m²
Would be financiallyWould be financially
“attractive” if ec glass <“attractive” if ec glass <
£250/m²£250/m²
Low-e cost ~£350/m² in 70’sLow-e cost ~£350/m² in 70’s →→ byby
Cost Implications ReplacingCost Implications Replacing
low–e with Electro chromiclow–e with Electro chromic
glass?glass?
16. Call me obtuse, but youCall me obtuse, but you
could stand me on acould stand me on a
beach till the end ofbeach till the end of
time and never would ittime and never would it
occur to me to try tooccur to me to try to
make it into windows.”make it into windows.”