Low Energy Building Design 2010

Presentation 3TEAM ZEROArnaud Gibert

Bintou OuedraogoDanny Tang

Naeema HafeezPaul Dupuy

AimIs to design 3 housing types which will form a

20 dwelling net zero carbon community, located in rural Ayrshire

Designed to Code Level 5 or better

To be an exemplar of sustainable, low energy design for the future developments

2 Bedroom

3 Bedrooms

4 Bedrooms

MaterialsConcrete Foundation

25% fly ash replacing Portland cement- 25% reduction in the embodied energy

Timber Frame ConstructionSource: Approx. 50-55 miles from the site

Straw Bale with concrete stucco finishStraw bale used as an infill materialSource: approx 55-60 miles from siteCost of bales: approx. £1.50/ bale (pick up yourself)OR £2.50-£3.50 (delivered, costs depends where and how far)

Triple Glazing windows with multiple low emissivity coatings and a xenon fill with timber frameHigh performance glazing with timber frames help keep the

heat trapped.

Embodied EnergyMaterial Typical

House(same size)

Our House built to Passive

Standards

Notes

Concrete Foundation

15816.6 -- 1500 sq ft average 0.38m thick

Concrete with 25% fly ash

-- 11877.6 25% fly ash replacing Portland cement

Insulation36616 -- Polyurethane everywhere

-- 735 cellulose below slabs and straw bales act as an insulation for the walls

Windows and doors

13955.75 -- Aluminium-- 9175 Wood

Wall4283.33 -- Drywall with paint finish

-- 2865.148 Straw bales with stucco concrete finish

Flooring19113.6 -- Synthetic carpet in the whole

house-- 844.8 hardwood in the whole house

Total 89785.28 23497.548

Embodied EnergyEmbodied energy is a significant contribution to

Scotland’s CO2 emissionsConclusion

Embodied energy of a home varies according to its size, type of construction, building materials, where the building materials come from, and where the home is built.

To obtain a low embodied energy Using lightweight construction, this is why timber frame

was used for our project Locally sourced materials, in this case straw bales, where

such little energy is required to extract, process and manufacture this material.

Solar Gain/Loss

1 4 7 10 13 16 19 220

10000

20000

30000

40000

50000

60000

70000

Winter Heat Gain/Loss

Heat gainsHeat lossDHWTotal heat demand

Pow

er in

W

1 4 7 10 13 16 19 22-100000

1000020000300004000050000600007000080000

Summer Heat Gain/Loss

Heat gainsHeat lossDHWTotal heat demand

Pow

er in

W

Heating System

Winter

Summer

NightBy pass

LaZer2

DHW

Water supply

GledhillBoilerMate

Electricity and lack of thermal powerPV panels and CHP

PV : Base load Solar Century C21e

CHP : Baxi DACHS : 5.5kWe ; 12.5kWth

Lighting• T5 28W, 2900 lumens• Compact Fluorescent 9W, 450 lumens

• 2 Bedrooms houses: 376W• 3 Bedrooms houses: 460W• 4 Bedrooms houses: 551W

Ventilation• Heat Recovery System ComfoD 350 (95%

efficiency)• 2 Bedrooms houses: 160m3/h

45W• 3 Bedrooms houses: 180m3/h

60W• 4 Bedrooms houses: 240m3/h

120W

Electrical consumption•A, A+ and A++ appliances• For each houses 4 typical days (Winter, Spring, Summer and Autumn)

• 2 Bedrooms houses: 21kWh/m2/year• 3 Bedrooms houses: 22kWh/m2/year• 4 Bedrooms houses: 20kWh/m2/year

Table for electrical consumption (2bed. Houses), appliances + lighting + ventilation

Electrical consumption

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 240

200

400

600

800

1000

1200

1400

1600

1800

2000 Energy consumtion per day (2 bedrooms)

WinterSpringSummer

Hours

Watt

TrasnportationAlternative transports

Walking, cycling, rollerbladingPublic TransportCar sharing

Electrical TransportsElectric CarElectric Bicycle

Cheap: Minimum cost £500

TransportationBlue Car with Solar PanelsBatscap Lithium Metal Polymer battery, lifespan:

10 yrs and entirely recyclable Recharging time : 4 hoursAutomony: 250 kmBattery power rating: 30 kWhSolar panels efficiency: 17.5%Surface: 2.55m²Irradiance: 152W/m²Recharge Time only by solar panels: 443hE=P*t and P=S*G*Eff

Waste Water ManagementBiotank by Biokube• Certified and tested to European Standard EN 12566• Installing this systems is low risk, high gain. • Biokube guarantee that their system will perform as

what has been stated by them.• The Biokube system is maintained and serviced by

the supplier• 5 year warranty for part

• Water can be used for irrigation purposes due to more efficient treatment (less than 10mg/l BOD : 15 mg/l Suspended Solids : 5 mg/l Ammonia).

BioKube Mars• Dimensions for BioKube Mars are Ø 200

cm., Height 150 cm. and Weight 320 kg.• Very compact in size for a system

designed to clean wastewater up to 30 people.

• The Mars system comes in a range of treatment capacities from 15PE to 30PE.

• Annual Maintenance Cost - £170 • Cost to buy £7000- £8000 per tank

Plan of workGather all informationFinalise each componentCome up with a conclusion Website

ANY QUESTIONS?!