Built Environment Sustainability Lecture 14 - PowerPoint PPT Presentation

Loading...

PPT – Built Environment Sustainability Lecture 14 PowerPoint presentation | free to view - id: 2594c3-ZDc1Z



Loading


The Adobe Flash plugin is needed to view this content

Get the plugin now

View by Category
About This Presentation
Title:

Built Environment Sustainability Lecture 14

Description:

Implementation of sustainable construction in buildings ... LEED-NC 2.1 New Construction. LEED-EB Existing Buildings. LEED-CI Commercial Interiors ... – PowerPoint PPT presentation

Number of Views:57
Avg rating:3.0/5.0
Slides: 59
Provided by: charles50
Category:

less

Write a Comment
User Comments (0)
Transcript and Presenter's Notes

Title: Built Environment Sustainability Lecture 14


1
Built Environment Sustainability Lecture 14
2
Overview
  • Forces propelling change
  • Introduction to high performance buildings
  • The USGBC LEED Building Assessment Standard
  • Connection of technology and high performance
    green buildings
  • Key energy technologies
  • Building hydrologic cycle systems
  • Materials innovations
  • Indoor environmental quality strategies
  • Design for Deconstruction and Disassembly (DfDD)
  • Summary and Conclusions

3
General Global Impacts
  • Rainforest loss 1 acre/second
  • Temperate forest loss 10 million acres/yr
  • 50 of all forests have disappeared
  • Grain production is falling
  • Over 24 billion tons of topsoil are lost annually
  • Fisheries are being depleted
  • Humankind is transforming the surface of the
    Earth, moving 2x as much material as nature
  • Global warming
  • Ozone depletion

4
The 6th Major Extinction?
  • Fossil record indicates 5 major planetary
    extinctions
  • Ordovician 440 million years ago
  • Devonian 365 million years ago
  • Permian 245 million years ago
  • Triassic 210 million years ago
  • Cretaceous 66 million years ago
  • Is the 6th major planetary extinction underway?
  • And is it human instigated?

5
The Oil Production Rollover Point
  • Time when the maximum production of oil occurs.
  • General forecasts are in next 5-15 years
  • Gasoline prices will rise rapidly 10/gallon
  • Energy value of oil will be less than extraction
    energy
  • Huge emerging demand from growing economies
    China and India

6
(No Transcript)
7
(No Transcript)
8
The Built Environment
  • Comprised of
  • Public and commercial buildings
  • Houses
  • Industrial plants
  • Infrastructure (roads, ports, airports)
  • Impacts (in U.S.)
  • 40 of extracted materials
  • 30 of electricity
  • 35 of total waste (construction demolition)

9
Sustainable Construction
  • Creating and maintaining a healthy,
    resource-efficient built environment based on
    ecological principles (CIB TG16, 1994)
  • Principles and foundation
  • Targets Factor 4 and Factor 10
  • Timeline Seven generations or 200 years
  • All phases of the built environment

10
Systems underpinning sustainable construction
phases
11
High Performance Green Buildings
  • Implementation of sustainable construction in
    buildings
  • Shift in language High performance vs. green
  • Resource efficient water, energy, materials,
    land, biota
  • Factor 10 Reduction 292 kwhr/m2-yr to 29
    kwhr/m2-yr
  • LEED (Leadership in Energy and Environmental
    Design) is the U.S. green or high performance
    building standard
  • U.S. Green Building Council is the proponent of
    LEED

12
International Organizations
  • iiSBE International Institute for a Sustainable
    Built Environment
  • CIB Conseil Internaional du Batiment
  • Green Building Challenge (GBC)

13
National Standards
  • UK Building Research Establishment Environmental
    Assessment Method (BREEAM) Building Research
    Establishment (BRE)
  • Japan CASBEE
  • Australia Green Star Green Building Council of
    Australia
  • U.S. Leadership in Energy and Environmental
    Design (LEED) U.S. Green Building Council
    (USGBC)

14
The U.S. Green Building Council
  • A non-profit promoting green building in the U.S.
  • Members product manufacturers, academia,
    designers, local government, federal government
  • Creating a suite of LEED standards for new and
    existing buildings
  • http//www.usgbc.org

15
The USGBC LEED Suite of Standards
  • LEED is a suite of standards
  • LEED-NC 2.1 New Construction
  • LEED-EB Existing Buildings
  • LEED-CI Commercial Interiors
  • LEED-CS Core and Shell
  • LEED-Residential (under development)
  • LEED-NC 2.1 Point System (69 Total Points)
  • Certified 26 points
  • Silver 33 points
  • Gold 39 points
  • Platinum 52 points
  • Created to assess buildings but actually serves
    to guide design and construction

16
Growth of Green Building Activity, USGBC
17
Rinker Hall as a HPB
  • Designed using the LEED Standard, first gold
    building in Florida
  • Will use 1/3 rd the energy of a UF building
    designed to code
  • Extensive daylighting strategy
  • Energy shedding building façade wall as shading
    device
  • Automatic lighting controls on/off, throttling
  • Stacked air handlers, full 0 to 100 capability
  • Waste heat recovery system
  • Advanced building automation system

18
Rinker Hall (continued)
  • Materials
  • Brick recycled from Hume Hall (demolished 2001)
  • Recycled asphalt paving and lime rock
  • Linoleum and recycled content carpet flooring
  • Designed for Deconstruction
  • Rainwater harvesting, waterless urinals, low flow
    fixtures
  • Capability for deconstruction

19
Rinker Hall
20
Rainwater Harvesting System
21
Skylights and Roof
22
Benefits of Green Buildings
  • Lower operating costs energy, water, waste
  • Health implications
  • Workforce productivity
  • Marketplace comparability
  • Advantageous financing and incentives
  • Reductions in emissions
  • Reduced liability
  • Positive image

23
(No Transcript)
24
(No Transcript)
25
More on Workforce Benefits
  • Cost of building 22/ft2
  • Energy costs 2/ft2
  • Cost of employees
  • 140 to 350/ft2
  • 10 productivity boost 14 to 35/ft2 added to
    bottom line
  • Problem very difficult to prove the connection
    between health, green buildings, and productivity

26
Technology and the HPB
  • HPB hold the promise for reduced total building
    cost and lowered environmental impacts
  • Both hard and soft technologies are needed to
    execute a HPB
  • Hard products and materials
  • Soft processes, methods, simulations
  • Surge of new products to support HPB design and
    construction
  • Movement in this direction is accelerating

27
Key Energy Technologies
  • Ground coupling
  • Heat Pumping
  • Energy removal ventilators
  • Radiant cooling
  • CO2 sensors
  • Positive Displacement Ventilation
  • Daylight and occupancy sensor integration
  • Lights sodium and LED

28
Radiant Cooling Thermal Image
29
Radiant Cooling - Examples
30
Radiant Cooling-Examples
31
Energy Recovery Ventilator
32
Building Hydrologic Cycle Systems
  • Rainwater harvesting
  • Ultra low flow fixtures
  • Greywater systems
  • Waterless systems
  • Integration of natural systems for stormwater
    uptake and waste processing
  • Infrared control technologies

33
Rainwater Harvesting
  • Roof drains
  • Rainwater leaders
  • Concrete cistern -under exterior stair
  • Waterproofing inside out
  • Overflow lines to storm system
  • Hatch access for cleaning
  • Make-up from water line

34
Waterless Urinals
35
Materials Innovations
  • Low emissions materials
  • Use of post-industrial waste in materials fly
    ash, gypsum
  • Use of post-agricultural waste straw
  • Products from rapidly renewing species bamboo,
    aspen
  • Buildings that can be deconstructed
  • Products that can be disassembled, reused, and
    recycled
  • Sustainable Forestry

36
Fly Ash Concrete Marina City, Chicago
37
Deconstruction and Reuse U. of Florida
  • Brick (right)
  • Hume Hall demolition
  • Cleaned palletized by Students
  • Stored for use
  • Irrigation PVC for brick weeps

38
Rapidly Renewable Material, Certified Wood
  • Linoleum flooring
  • Wood doors from certified sustainable forest
  • Agriboard (pressed straw) cabinetry

39
Indoor Environmental Quality Strategies
  • Broad spectrum approach air, odors, noise,
    light, temperature, humidity, vibration, views
  • Low emissions materials
  • CO2 sensors

40
IEQ Daylighting Strategy
41
CO2 Sensor Fresh Air Intake Control
42
Construction IAQ
  • Eliminate dust, dirt at ductwork
  • Store products off floor (drywall, insulation)
  • 100 outside air flush prior to occupancy
  • No smoking policy during construction

43
Construction IAQ
  • Return air filter media
  • Temporary window protection
  • Temporary entrance grates

44
Soft Technologies
  • Simulation
  • Whole Building Energy Simulation DOE 2.1,
    Energy-10, Energy Scheming
  • Solar Simulation DHW, PV, BPV
  • Computational Fluid Dynamics (CFD)
  • Daylighting and lighting
  • Process
  • Design for deconstruction (DfD)
  • Construction processes waste, IEQ, erosion
    control, site disturbance

45
Closing Materials Loops
  • Most challenging of all green building issues
  • Design for Deconstruction and Disassembly (DfDD)
  • Building Deconstruction component reuse
  • Product Disassembly materials recovery
  • Materials Recyclability
  • Coupled with Extended Producer Responsibility
    (EPR)?
  • CIB Task Group 39 (Deconstruction)
  • www.cce.ufl.edu

46
Source Philip Crowther, TG39 Report,
2000 www.cce.ufl.edu
47
Deconstruction
48
Hume Hall Brick into Rinker Hall Wall
49
(No Transcript)
50
(No Transcript)
51
Solenium Carpeting, Interface, Inc.
52
(No Transcript)
53
(No Transcript)
54
(No Transcript)
55
(No Transcript)
56
Powell Center Efforts in HPB
  • Powell Center for Construction and Environment
    started in 1991
  • Expertise in HPB, construction and demolition
    waste, recycling and reuse of materials
  • Initiated international movements in sustainable
    construction, deconstruction, and construction
    ecology
  • Acted as consultants for HPB projects Summer
    House, Disney Wilderness Preserve, military
    projects, Abacoa, Alachua County Courthouse
  • Engage students in deconstruction projects since
    1997
  • Also started Greening UF and the UF
    Sustainability Task Force

57
Rethinking Sustainable Construction 2006
  • International conference to be held in Sarasota,
    11-14 September 2006
  • Second International Conference on Sustainable
    Construction
  • Focus is on radical or future green buildings
  • http//www.treeo.ufl.edu/rsc06

58
Summary and Conclusions
  • Green buildings meet the goals of resource
    efficiency and protecting the enviornment
  • Energy savings average 30, translating into
    relatively short payback times
  • Additional savings in water, waste, emissions
  • Health and productivity impacts are probably
    substantial but there are no rigorous studies
  • Green buildings provide immediate financial
    advantage to their owners
  • New products and services entering marketplace
  • Key element changing the education and training
    of future professionals
About PowerShow.com