Think Tank Charrette 2 Drawings

Building Green

Community 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 Authority

Focus 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 Cheng

Albert Anthony Palacios

Richard William Crum, Jr.

Jenna Elise Kamholz

Lauren Almy Kohlhoff

Edna Ledesma

Adam Baxter titrington

Cheng Cheng

CCR Green Systems Integration

Materials 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 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 CO 2 Producers =

CO 2 Sequesters

Planting trees contributes if CO 2 is unbalanced through design.

10% of the CO 2 emissions produced in the U.S. comes from the concrete hydration process:

Skin Energy Ventilation Strategies

Venting Mullion

System:

By floor or

groups of floors

Full Height Extending Double Envelope

Wind & Solar:

Turbine / wind

energy generation

Photovoltaic

wall panel & window

system

Wind turbine Photovoltaic Panels Cupola Stack Effect

Spring & Fall Ventilation Cross Ventilation West Wall Stack Exhaust Air

Controlling 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

O 2 production & shading

HVAC System Displacement System Hot Water Loop Double Duct Multi-Zone Hotel Office Outer Loop Displacement wheet under floor larger volume high speed

Mechanical Systems Integration HVAC Absorption Unit Solar collector

Solar Collector & Hot Water System Atrium Radiant Floor Heating

Gray Water Reuse Sprinkler System & Hose Bibs

Toilets, fountains / atrium

Irrigation for landscaping

Biophilia / Green Space Goal: Human contact with nature & daylight 1. Sunlight 2. Courtyard 3. Green Roof 4. Green Niches / gardens 5. Green Walls for gray water filtration 6. Atrium 7. Office Plants 8. Mechanical Park

Traditional Cogeneration Trigeneration Distributed Power Systems Options

Cogeneration

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 Cogeneration

Two Stage Hi-temp Exhaust Fired Absorption Cogeneration 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 pump 10. Refrigerant pump 11. Chilled water valve (open) 12. Heating water valve (closed) 13. Cooling water valve (open) 14. Cooling / heating switch (open) 15. Damper 16. Damper 17. Compressor 18. Combustor 19. Turbine 20. Generator Chilled water Cooling water Concentrated solution Refrigerant water Diluted solution

Energy Conservation 15% 10% 5% 40% 30% By reducing lighting loads & other heat generators the building energy load can 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 watts x 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 tons Target Goal = .5 watts / s.f

Lighting Strategies A. 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 Lighting Goal : Daylight factor for Louisiana sky vault = (1000 FL )(2%) = 20 FC Strategies : 2%  General Spaces / rooms 5%  Conference / Office 8%  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 Improvements (1 ton / 500 s.f. fans)(250,000 s.f.) = 500 tons x (60%) = 200 tons Totals: 170.5 500 127.86 5 2.5 805.86 tons 68 200 51 5 2.5 326.5 tons 59% load reduction 

Daylight Reduction = 20%

CCR Learning Environments

Atrium Lobby Level as an inviting “town square”

CCR Auditorium as a “flexible theatre”

Outdoor / Indoor Transition Axial Circulation through 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 Downtown

Green Roofs and Urban Agriculture