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LexIcon, Dun LaoghaireSustainable Approach to the Library andMulti Cultural Centre
CIBSE Masterclass, Croke Park, April 2015
Paul McGrathTadgh Hickey
Modern“a building of it’s time”
SignificanceRe-generation, revitalise, eliminationof the secluded nature of the park andremoval of the stagnant pond
Re-generation, revitalise, eliminationof the secluded nature of the park andremoval of the stagnant pond
SpatialProvide pedestrian movement from thetown centre to the promenade, seafrontRedesign and open up the landscape tothe public
Moran Park,Overgrow,unattended
Moran Park,Overgrow,unattended
Water feature
Initially the pond laid stagnant for aconsiderable time, albeit frequented byducks.
The source of the pond was believed tobe from underground streams.
Locals recall industrial pipes leadingfrom the pond, it is believed these fedlocal residents, businesses or suppliedwater to steamships in the Harbour.
Water feature
Initially the pond laid stagnant for aconsiderable time, albeit frequented byducks.
The source of the pond was believed tobe from underground streams.
Locals recall industrial pipes leadingfrom the pond, it is believed these fedlocal residents, businesses or suppliedwater to steamships in the Harbour.
No more ducks,well hopefully!
Built over 5 levels covering 6500m2
Consisting of parking, auditorium,Kitchen, bar, café, staff support,book storage, art gallery, communityrooms, plant area, water feature…….. and library
Built over 5 levels covering 6500m2
Consisting of parking, auditorium,Kitchen, bar, café, staff support,book storage, art gallery, communityrooms, plant area, water feature…….. and library
Local Authority Members Awards
- Best Public Building 2015- Grand Prix Award 2015 "dlr LexIcon is by far the most
significant piece of publicinfrastructure in Dún Laoghairefor over 100 years and is thesingle biggest investment by theCouncil in a civic amenity."
Chief Executive of Dún Laoghaire-RathdownCounty CouncilPhilomena Poole
"dlr LexIcon is by far the mostsignificant piece of publicinfrastructure in Dún Laoghairefor over 100 years and is thesingle biggest investment by theCouncil in a civic amenity."
Chief Executive of Dún Laoghaire-RathdownCounty CouncilPhilomena Poole
Inspiration
EnvironmentalEconomic
- Local Economic Improvement- Education- Reduction in anti-social behaviour- Provision of Local Employment
- Low Greenhouse Gas Emissions- Low Atmospheric Pollution- Re-use Of Previously Developed Land
SustainabilityParameters
11
Social Natural Resources
- Investment in Social Facilities- Reduction in Social Exclusion- Provision of Education- Provision of Employment
- Use of Renewable Resources- Use of Low Embodied Energy Materials- Re-use of Excavated Material- Low Use of Fossil Fuel Derived Power- Through Efficient Building Envelopes & Systems
SustainabilityDelivered
- Orientation, massing & geometry- Envelope- Low carbon technology
Maximisation of daylightcontribution, bringing naturallighting deep into the spaces.
Lighting isintelligently linked toutilise natural light andprovide artificiallighting throughdaylight compensationand occupancysensing.
Concept toConstruction
- Form optimised- Façade performance- Low energy thermal environment
• Low/High LevelNatural Ventilation
• Cross Ventilation
• Single sided &Cross Ventilation
15 Level 4 Floor Plan
• Natural Ventilation c/wdual speed localoccupant/BMS control
• Mixed Mode strategy• Space control via °C and
CO2 monitoring
• Single sided &Cross Ventilation
• Single sided &Cross Ventilation
Supply Extract
Intelligent ControlsNatural Ventilation• Manual control option• Automatic Control &
vent strategies
Mixed ModeNatural Vent disabled MechanicalVentilation (AHU enabled)
Natural Ventilation• Manual control option• Automatic Control &
vent strategies
Mixed Mode
24.5°C
24°C
23°C
22°C
21°C
20°C
19°C
18°C
17°C
Natural Ventilation(Temperature dead band)
Mechanical Ventilation (AHUenabled)
Mixed Mode Control
Mechanical Ventilation (AHU enabled)
Natural Vent disabled MechanicalVentilation (AHU enabled)
User Interface• Adjustable space setpoints• Adjustable opening limits• Adjustable wind speed limits• Rain sensor override
Measurement & Verification
- Power & Lighting DB metering- Large plant load metering (Pond/Lifts/Boiler room)- Primary plant and secondary circuit heat metering
(LTHW/CHW))- Utilities metering (Gas/Water/Electricity)
100Seat multi purposeAuditorium
Key Facts and FiguresCentral Library and Cultural Centre
Biomassboiler 100
Seat multi purposeAuditorium
24hrAutomatedbook returnservice
ExhibitionSpace
40,000Visitors per year
over 5 floors
Cafe
Mixed ModeVentilation
100Study spaces
Paul McGrath021 4277670Paul.mcgrath@arup.com
Tadgh Hickey021 4277670Tadgh.hickey@arup.com
Thank you
Paul McGrath021 4277670Paul.mcgrath@arup.com
Tadgh Hickey021 4277670Tadgh.hickey@arup.com
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