think tank charrette 2 drawings

CRI Think Tank Charrette #2Designing the Center for Community Renewal Energy, Green Systems & Learning EnvironsOctober 17-18, 2008 10.29.08

Building GreenBuilding GreenCommunity Renewal International (CRI)

Think tank Charrette #2 –

Designing the “Center for Community Renewal” (CCR)10.17-18.08

Focus Area One: “Building green – impacts & systems integration”

Discussion Panel:• Michael Garrison, Professor, University of Texas Architecture

• Don Shea, Director, Shreveport Downtown Development AuthorityFocus Area Two:

“Shaping the Learning Environments of the CCR” Discussion Panel:

• Harold Ledford, PhD. curriculum development & learning specialist for CRI• Barbara Colvin, ASID, learning environments design specialist for MHSM

University of Texas Architecture Graduate Student Charrette Teams:John Christopher Buono

Tracie Ann ChengAlbert Anthony Palacios

Richard William Crum, Jr.Jenna Elise Kamholz Lauren Almy Kohlhoff

Edna LedesmaAdam Baxter titrington

Cheng Cheng


CCR Green Systems IntegrationCCR Green Systems Integration


Materials ConservationMaterials Conservation

Reuse:Brick: East facade

Glass: South & West Façade

Concrete: Frame & (Garage)

From the neighboring community:

• Large steel working industry• Brick is a dominant regional building material

Existing Structure: Less modification = more reuse

Reduce:Modular: Less waste

Surface Area Configuration:• Sphere is ideal; cube is most simple geometric form• Complex configurations use

more material per unit of volume.

• Finish materials = exposed structure

Recycled / Recyclable:

Steel 60% recycled content: • Scrap material based concept.

Example of melted guns or recycled car materials.

Housing scrap: • Recycled furniture, wood

flooring from row houses…Polyethylene, polymers & all

plastics: • (HPDE) made from recycled

materials but not recyclable• PTE: recycled nylon carpet• Styrene from recycled plastic

Organic Fabrics:• Rubber Tires

Glass & Paper:• Energy to reuse is high

Aluminum & Stainless Steel

Reduce Reuse Recycle


Goal: Carbon NeutralGoal: Carbon Neutral

Underutilized & Local:Pecan, Mesquite, Long Leaf Pine, Clay Brick

Certified:R.O. Martin: Only certified within 500 miles

Engineered:Parallam, LVL, MDF:

• Not Necessarily structural but utilized for trim & finish materials.

Underutilized, local materials, certified, engineered, smart low embodied energy

Smart:ETFB, Glass Technologies

• Electro chromic, electro thermal, glass reinforced polymers…

Low Embodied Energy:Local, Wood not Bamboo:

Carbon Balanced:Wood CO2 Producers = CO2 Sequesters

• Planting trees contributes if CO2 is unbalanced through design.

10% of the CO2 emissions produced in the U.S. comes from the concrete hydration process:


Skin Energy Ventilation StrategiesSkin Energy Ventilation Strategies

Venting MullionSystem:• By floor or groups of floors

Full Height Extending Double Envelope

Wind & Solar:• Turbine / wind energy generation• Photovoltaic wall panel & window system

Wind turbine

PhotovoltaicPanels

Cupola

Stack Effect


Spring & Fall VentilationSpring & Fall Ventilation

Cross Ventilation West Wall Stack Exhaust Air


Controlling Heat GainControlling Heat Gain

Shading Devices:• Louvers, fins, screens, etc.

Ventilation:• Summer – draws heat away from building• Winter – traps & stores heat as a thermal blanket

Vegetation:• Cools air before reaching building• O2 production & shading


HVAC SystemHVAC System Displacement SystemDisplacement System

Hot Water Loop Double Duct Multi-Zone

Hotel Office

Outer Loop Displacement wheet under floor

larger volumehigh speed


Mechanical Systems IntegrationMechanical Systems Integration

HVAC AbsorptionUnit

Solar collector


Solar Collector &Hot Water SystemSolar Collector &

Hot Water SystemAtrium Radiant Floor HeatingAtrium Radiant Floor Heating


Gray WaterReuseGray WaterReuse

Sprinkler System& Hose Bibs

Sprinkler System& Hose Bibs

• Toilets, fountains / atrium• Irrigation for landscaping


Biophilia / Green SpaceBiophilia / Green SpaceGoal: Human contact with nature & daylight

1. Sunlight2. Courtyard3. Green Roof4. Green Niches / gardens5. Green Walls for gray water filtration6. Atrium7. Office Plants8. Mechanical Park


Traditional Cogeneration Cogeneration

Trigeneration Trigeneration

Distributed Power Systems OptionsDistributed Power Systems Options


CogenerationCogeneration


Solar Assisted Cogeneration System

Solar Assisted Cogeneration System

Gas turbine 1.Solar collector 2.

Solid oxygen Fuel 3.Internal combustion engine 4.

Two stage hi-temp. absorption unit 5.Single stage low-temp. absorption unit 6.

Fuel cell 7.Domestic hot water 8.

Thermal “ice storage” 9.Pumps 10.

Electric transformers 11.


Single Stage Lo-Temp Exhaust Fired CogenerationSingle Stage Lo-Temp Exhaust Fired Cogeneration


Two Stage Hi-temp Exhaust Fired Absorption CogenerationTwo Stage Hi-temp Exhaust Fired Absorption Cogeneration

Chilled waterCooling waterConcentrated solutionRefrigerant waterDiluted solution

1. High stage generator 2. Low stage generator 3. Condenser 4. Evaporator 5. Absorber 6. High temp. heat exchanger 7. Low temp. heat exchanger 8. Water heater 9. Solution pump10. Refrigerant pump

11. Chilled water valve (open)12. Heating water valve (closed)13. Cooling water valve (open)14. Cooling / heating switch (open)15. Damper16. Damper17. Compressor 18. Combustor19. Turbine20. Generator


Energy ConservationEnergy Conservation

15%10%

5%

40% 30%

By reducing lighting loads & other heat generatorsthe building energy loadcan be reduced by

More than 60%IES Lighting

Average wattage / s.f. = 2 watts / s.f. Goal energy wattage ≤ 1.3 watts / s.f.

Lighting load example:

Existing = 150,000 s.f.New = 150,000 s.f.

300,000 s.f.x 2 watts 600,000 wattsx 3.41 BTU/w 2,046,000 BTU÷ 12,000 BTU/ton

Lighting = 170.5 tons AC

Goal for lighting load:Reduce load to 1 watt / s.f. =170.5÷2= 85.25 tonsTarget Goal = .5 watts / s.f


Lighting StrategiesLighting StrategiesA. Better Lights : CFL, LED, Fiber Optic

B. Glare free Lighting : Task, Ambient lighting

C. Brightness Ratios : 70% walls, 80% ceilings, 50% work surface, 20% floors

D. Lighting Controls : Education, timers, sensors, photocell

E. Day lighting : Goal = .5 watts per square foot

Day LightingDay LightingGoal : Daylight factor for Louisiana sky vault = (1000 FL )(2%) = 20 FC

Strategies : 2% General Spaces / rooms5% Conference / Office8% Atrium / Lobby / Public Areas

Example: (85 tons)(≥ 20% goal for day lighting) = 17 tons 85 tons – 17 tons reduced from daylight = 68 tons for lighting

(60% improvement from 170.5 tons per IES 2 watts / s.f.)


Day Lighting / Lighting ImprovementsDay Lighting / Lighting Improvements

(1 ton / 500 s.f. fans)(250,000 s.f.) = 500 tons x (60%) = 200 tons

Totals:

170.5500127.86 5 2.5

805.86 tons

68200 51 5 2.5

326.5 tons

59% load reduction


Daylight Reduction = 20%Daylight Reduction = 20%


CCR Learning EnvironmentsCCR Learning Environments


Atrium Lobby Levelas an inviting “town square”

Atrium Lobby Levelas an inviting “town square”


CCR Auditorium as a “flexible theatre”CCR Auditorium as a “flexible theatre”


Outdoor / Indoor TransitionOutdoor / Indoor Transition

Axial Circulationthrough building

Central point of arrival (node)Main circulation core

Green connection into atrium. Green wall could be a physical & visual connection to the “Roof Park”

Space for café is transformable.Creates connection from inside to outside.

Café begins to spill out on to sidewalk to increase pedestrian activity

Retail / café improve Downtown pedestrian Experience.

Water element connects through wall

Sensor operated education displays


CCR Impacts on DowntownCCR Impacts on Downtown


Green Roofs and Urban AgricultureGreen Roofs and Urban Agriculture

think tank charrette 2 drawings

Design

recycled materials

water heater

heating water valve

solution refrigerant

building energy load

domestic hot water

cooling water valve

chilled water valve