Low Energy Building Design 2010 Presentation 3 TEAM ZERO Arnaud Gibert Bintou Ouedraogo Danny Tang Naeema Hafeez Paul Dupuy

Aim Is 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

Materials Concrete Foundation Timber Frame Construction 25% fly ash replacing Portland cement- 25% reduction in the embodied energy Timber Frame Construction Source: Approx. 50-55 miles from the site Straw Bale with concrete stucco finish Straw bale used as an infill material Source: approx 55-60 miles from site Cost 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 frame High performance glazing with timber frames help keep the heat trapped.

Our House built to Passive Standards Embodied Energy Material 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 Insulation 36616 Polyurethane everywhere 735 cellulose below slabs and straw bales act as an insulation for the walls Windows and doors 13955.75 Aluminium 9175 Wood Wall 4283.33 Drywall with paint finish 2865.148 Straw bales with stucco concrete finish Flooring 19113.6 Synthetic carpet in the whole house 844.8 hardwood in the whole house Total 89785.28 23497.548 This table shows the calculated embodied energy for the 3 bedroom house designed to passive standards, using energy efficient materials, the table also shows embodied energy of a typical house of the same size but this time using standard construction materials that have a high embodied energy. The calculated figure shows approximately 75% reduction in embodied energy when you use energy efficient materials, only some of the materials have been considered as in this calculation

Embodied Energy Embodied energy is a significant contribution to Scotland’s CO2 emissions Conclusion 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

Heating System DHW LaZer2 Gledhill BoilerMate Night By pass Summer Winter Summer Night By pass DHW LaZer2 Gledhill BoilerMate Water supply

Electricity and lack of thermal power PV 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) Table for electrical consumption (2bed. Houses), appliances + lighting + ventilation 2 Bedrooms houses: 21kWh/m2/year 3 Bedrooms houses: 22kWh/m2/year 4 Bedrooms houses: 20kWh/m2/year

Electrical consumption

Trasnportation Alternative transports Electrical Transports Walking, cycling, rollerblading Public Transport Car sharing Electrical Transports Electric Car Electric Bicycle Cheap: Minimum cost £500

Transportation Blue Car with Solar Panels Batscap Lithium Metal Polymer battery, lifespan: 10 yrs and entirely recyclable Recharging time : 4 hours Automony: 250 km Battery power rating: 30 kWh Solar panels efficiency: 17.5% Surface: 2.55m² Irradiance: 152W/m² Recharge Time only by solar panels: 443h E=P*t and P=S*G*Eff

Waste Water Management Biotank 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 work Gather all information Finalise each component Come up with a conclusion Website

ANY QUESTIONS?!