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

2. 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

3. 2 Bedroom

4. 3 Bedrooms

5. 4 Bedrooms

6. Materials Concrete Foundation Timber Frame Construction
25% fly ash replacing Portland cement- 25% reduction in the embodied energy
Timber Frame Construction
Source: Approx miles from the site
Straw Bale with concrete stucco finish
Straw bale used as an infill material
Source: approx 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.

7. Our House built to Passive Standards
Embodied Energy
Material
Typical House
(same size)
Our House built to Passive Standards
Notes
Concrete Foundation --
1500 sq ft average 0.38m thick
Concrete with 25% fly ash
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
Aluminium
9175
Wood
Wall
Drywall with paint finish
Straw bales with stucco concrete finish
Flooring
Synthetic carpet in the whole house
844.8
hardwood in the whole house
Total
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

8. 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.

9. Solar Gain/Loss

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

11. Electricity and lack of thermal power
PV panels and CHP
PV : Base load
Solar Century C21e
CHP : Baxi DACHS :
5.5kWe ; 12.5kWth

12. Lighting T5 28W, 2900 lumens Compact Fluorescent 9W, 450 lumens
2 Bedrooms houses: 376W
3 Bedrooms houses: 460W
4 Bedrooms houses: 551W

13. 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

14. 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

15. Electrical consumption

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

17. 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

18. 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).

19. 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

21. Plan of work Gather all information Finalise each component
Come up with a conclusion
Website

22. ANY QUESTIONS?!