Energy Analysis Charrette 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 KamholzLauren Almy Kohlhoff

Edna LedesmaAdam Baxter titrington

Cheng Cheng


Materials ConservationMaterials Conservation

Reuse:Brick: East facadeGlass: South & West FaçadeConcrete: 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 wasteSurface 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 ExtendingDouble 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

TrigenerationTrigeneration

Distributed Power Systems OptionsDistributed Power Systems Options


CogenerationCogeneration


Solar AssistedCogeneration System

Solar AssistedCogeneration 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

Single Stage Lo-Temp Exhaust Fired Cogeneration


Two Stage Hi-temp Exhaust Fired Absorption Cogeneration

Two Stage Hi-temp Exhaust Fired Absorption Cogeneration

Chilled waterCooling waterConcentrated solutionRefrigerant waterDiluted solution

1. High stage generator2. Low stage generator3. Condenser4. Evaporator5. Absorber6. High temp. heat exchanger7. Low temp. heat exchanger8. Water heater9. 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. 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 LightingAverage 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/w2,046,000 BTU

÷ 12,000 BTU/tonLighting = 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 FCStrategies :

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

Example: (85 tons)(≥ 20% goal for day lighting) = 17 tons85 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

52.5

805.86 tons

682005152.5

326.5 tons

59% load reduction


Daylight Reduction = 20%Daylight Reduction = 20%

Energy Analysis Charrette Drawings

Design

Transcript of Energy Analysis Charrette Drawings