REALL- Riccarton Eco-Village Project A Standard Test facility for - - PowerPoint PPT Presentation

REALL- Riccarton Eco-Village Project

A Standard Test facility for the Integration of Water Efficient Low Carbon Buildings, Technologies and Behaviours Gary Clark Project Director Susan Roaf Research Director

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REALL addresses the needs for:

• Affordable housing that meets 2016 targets
• Integration of construction, technology

and behaviour

• Comparable, independent, first class science
• Role of building fabric in meeting targets
• A test bed for new technologies
• Vital Validation for simulation models and

field trials

• A WORLD LEADING STANDARD TEST

FACILITY FOR LOW CARBON HOUSING

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Introduction:

Findhorn: Field of Dreams

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Context: Scottish Precedents

Scale Testing

Joined up Scotland leading the low carbon enlightenment

Products Products and buildings Products, buildings and people

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Description: Project Aims

Brief: Ten 2-3 bedroom semi-detached houses Standard 2 storey floor plan of 80m2 Physical Factors: Wall Construction Thermal Mass Ventilation Strategy Heating Systems Renewable Systems Water Appliances And Occupant Behaviour Constants: Layout, U-Values, Air-tightness, windows, floors, roofs, internal construction, appliances

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Project: Campus Location

Findhorn Foundation

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Project: Feasibility Layout

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Project: Physical Factors

House Type Performance Wall Type Thermal Mass Vent Type Heating System Renewables Water Use

A1: Heavy 2013 Block Cavity High Natural Air to air PV+ Solar HW Typical A2: Heavy 2013 External Insulated Block High Natural Gas PV+ Solar HW Low B1: Medium 2013 Block Internal Medium Natural GSHP PV+Solar HW Typical B2: Medium 2013 Brick External Medium Natural Gas PV+ Solar HW Low C1: Light 2013 Timber Frame Light Natural Air to Water PV+Solar HW Typical C2: Light 2016 Timber Frame Light Natural Gas PV+ Solar HW low D1: Panel 2013 SIPS Light Natural Gas PV+Solar HW High D2: Panel 2016 SIPS Light Mechanical Recovery Gas PV+ Solar HW Very Low E1: 1918 House Pre 1918 Brick and Stone Hybrid Natural Gas PV+Solar HW High E2:1918 House 2016 Brick and Stone Hybrid Mechanical Recovery Gas PV+ Solar HW Very Low

Retrofit Option

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Delivery: Project Programme

Funding Design Construction

1 Internal Stakeholder Consultation 2 Funding Strategy and Qucik Wins 3 Project Outline Brief 4 Project Board 5 Project Steering Group Meetings 6 Detailed Brief and Business Case 7 Project Team Appointment 8 Project Team Meetings

9 Options Appraisal 10 Stage C Design 11 Finalise Stage C Design and Costings 12 PME/Court Sign Off 13 Stage D- Design 14 Graphics and Presentation Material 15 Publicity Launch Event 16 Fund Raising 17 Planning Submission

18 Stage E-Detailed Deisgn 19 Building Control Submission 20 Stage F- Producation Information 21 Procurement Route and Funding Sign off 22 Contractor Tender Period 23 Construction Period 24 Installation of Monitoring Equipment 25 Commissioning and Soft Landings 26 Building Completion 27 FF&E Installation 28 Occupation and Publicity Event 29 Post-Occupation Research (12-36 Months) 30 Analysis and Research Year 1 Write up 31 Research Conference

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Research: Thematic Structure

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Research

• Building Overheating
• Extreme weather responses – wind / rain / heat / drought /

freezing

• Flood-Proofing Design strategies
• Energy supply sensitivities
• Indoor Comfort / Air Quality
• Ventilation strategies
• Resilience of materials and finishes
• Occupant Behaviours and Education
• Water Flows / Pollution
• Sewage
• Waste Strategies

RESEARCH FIELDS- ADAPTATION RESEARCH

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Research

The Drainage Research Group (DRG) at Heriot-Watt University has an international reputation based upon a range of skills and interests since 1986. These range from finite difference based numerical modelling of the water and airflows within building drainage, waste and ventilation (DWV) systems to its contribution to both industrial product development and research and authorship of national Building Standards legislation in the field of water use. Research Opportunities: The HWY Group

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Research: 3 Drivers

1) Resource limits in a changing world. Both water and energy are limited resources and the steady rise of energy costs, concerns about ‘Peak Oil’ and also of climate change on the long term availability and cost of fresh water supplies are a key drive for new efficiency research. 2) Section 7 of the Scottish Building Regulations recently published that cover a wide raft of sustainability requirements for domestic (and non- domestic) buildings now counts carbon emissions for from distributing, processing and heating water. There are six level ranging from bronze to Platinum but water efficiency requirements are applicable to dwelling only and are mandatory if the dwelling is to meet silver or gold standards. The clear message here is that the Scottish Government sees water consumption reductions as coming largely from housing. 3) New product development and testing. The need for credible results

• n water efficient product performance, in dwellings occupied by different

people and in conjunction with a range of outflow conditions is paramount. How combinations of different water efficient products in systems, in-use, perform must be combined with behavioural and perceptional studies of their acceptability.

• ’

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Building on the Waterwise Phase III work programme

• Build the evidence base for domestic water consumption

reductions through technology applications

• Study behaviour and attitudes to water use and how providing

guidance influences behaviour change

• Apply throughout robust, science-based research which advances

understanding of how society can resolve the problems of reducing availability of water, increasing population and more water-intense lifestyles

• Investigate price sensitivities for water choices
• Apply universal Carbon, Energy and Cost-benefit analysis for to the

water efficiency systems studied in embodied, running + LCA

• Assess and measure issues of sustainability in the researched

water saving studies, over time

Building on the Waterwise Phase III work programme:

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REALL: Water Research

REALL TEST REGIME FOR WATER COLD HOT RAIN GREY PHOS PHOS CONSTRUCT WATER WATER WATER WATER CONSTR EXTERNAL HOUSE SEWAGE REGIME REGIME MATS MATS 1 High Mass BAU - LBD BAU - M LS - XC GUT 1 SYST 1 X HIGH 2 High Mass EFF - LBD EFF - M MS - XC GUT 1 SYST 1 X HIGH 3 Med Mass BAU - MBD BAU - M SS - XC GUT 2 SYST 2 X LOW 4 Med Mass EFF - MBD EFF - M STANDARD GUT 2 SYST 2 X LOW 5 Timber BAU - SBD BAU - M LS - P GUT 3 STANDARD X LOW 6 Timber EFF - SBD EFF - M MS - P GUT 3 STANDARD X LOW 7 SIPS SEPT TANK G4IT - XM SS - P GUT 4 SYST 3 X LOW 8 SIPS SEPT TANK ULT - XM W EVO ST GUT 4 SYST 3 X HIGH 9 HYBRID REED BED G4IT - M POINT USE GUT 5 SYST 4 X HIGH 10 HYBRID REED BED ULT - M OTHER GUT 5 SYST 4 X LOW BAU - Business as Usual ; EFF - Efficient fittings; ULT - Ultra Efficient Fittings LBD - Large Bore Drain ; MBD - Medium Bore Drain ; SBD - Small Bore Drain M - Metered; XM - unmetered; G4IT - no restraints on water usage LS - Large water storage tank ; MS - Medium Storage tank; SS - Small storage tank XC - No cost for energy ; P - energy paid for my tenant W EVO - Water Evolution thermal store POINT USE - point of use geisers GUT - gutter type

Phosphates Projects

Will Brownlie

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Eutrophication

• The enrichment of bodies of fresh water by

inorganic plant nutrients, mainly nitrate and phosphate

• Commonly used to describe enrichment caused by

sources of anthropogenic pollution which have an ecologically deleterious impact

• In extreme cases of eutrophication, toxic algal blooms can occur, causing hypoxia of

waters, fish death and complete ecosystem collapse. Significantly increases filtration costs in potable water reservoirs, in some cases make water unusable as a safe drinking water source

Cost of Eutrophication – dealing with damage

Cost of Eutrophication – responding to policy

Historically focus has been on reduction of points sources

• Agriculture
• Sewage treatment works
• Industrial outputs

Now there is a shift to target diffuse pollution Housing may provide ‘low magnitude, but high frequency point sources’ this may represent a significant source of nutrients to the aquatic environment

Reducing eutrophication

Making our phosphate footprint Questions?

• Does building construction release phosphate into water

systems?

• What are the sources of phosphate from building construction

and house residency?

• What is the magnitude of these sources?
• How do they get into surrounding water systems?
• What techniques effectively reduce phosphate from a

construction site and an occupied house?

Creation of artificial channels Soil Porosity (worm hole density and fissures) Precipitation Mechanical disruption of soil / removal of topsoil Storage of materials Portable toilets

Gardening Precipitation Septic tanks / cesspits Livestock Leakage from main sewerage and mains water supplies

Why REALL as a test site? Ideal scenario is a building in a bubble where we can assess different building types and construction methods The REALL project allows:

• Ten houses ranging from low to high risk phosphate

release scenarios to be tested

• Full access to alter settings and conditions
• Full access for continual assessment
• Pioneering work that has never been achieved on this

scale before

• Create a methodology that can be used to predict the

‘risk’ of phosphate release from the built environment

• Further support phosphate mitigation targets for building

development that have been started in the Loch Leven

• catchment. This will advice legislation
• Support environmentally sustainable building practice

and living methods

• Advice on best practice methods for construction
• Reduce nutrient sources to our water supplies

The output of this work

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Research

BUILT VIRTUAL

EXPERIMENTS – PEOPLE AND BUILDINGS

Open source science

BONKERS

REALL SCIENCE – VIRTUAL / VALIDATED / COMPLEX

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Research

Observer WindTurbineSimulator WindSimulator PVSimulator House Timer

controls controls controls controls

HouseSchedule

controls depends controls depends depends controls

SunSimulator

controls depends depends

TemperatureSimulator

controls depends

STRATEGY - REALL COMPLEX SCIENCE:

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Life Cycle Costing Life Cycle Energy Analysis Life Cycle Carbon Analysis Life Cycle Water Analysis

Payback Period Payback Period Payback Period Payback Period Years

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Life Cycle Appraisal:

REALL PhDs

• Urban Forests – Heat Islands (FR + HWU)
• Building Overheating – Thermal Storage (HWU + ETP)

Webcast: http://cic.adobeconnect.com/p69078233/?launcher=false&fcsContent=true&pbMode=normal

• http://cic.adobeconnect.com/p62481223/?launcher=false&fcsContent=true&pbMode=normal
• Housing Renewables / Fuel Poverty / Carbon Reductions

(HWU + IES) - http://www.youtube.com/view_play_list?p=E8C3E0292DD96A69 webcast: http://cic.adobeconnect.com/p69078233/?launcher=false&fcsContent=true&pbMode=normal

• Flooding and Housing – (HWU + Insurance Ind ?)
• Film: http://www.youtube.com/watch?v=ZuVf9MBMc8c

Webcast:

http://www.cicstart.org/event/xwc_qa_play.php?wc=37&rsvp=d10458d8534a93abb92eff876d03f97b

• Water Conservation and Housing (HWU + Scottish Water?)
• Low Carbon Buildings: webcast:

http://cic.adobeconnect.com/p9h17ul4j2i/?launcher=false&fcsContent=true&pbMode=normal

REALL PhDs

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Research

Standards: Monitoring: Measuring: Recording: Evaluation: Analyses: Surveying:

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