Presentation 2 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

Tasks

Passive House Standard Exterior shell insulated to achieve a u-value not exceeding 0.15W/m 2 U-value between W/m 2 Making full use of solar energy Southern orientation and shade considerations Energy Efficient window glazing and frames U-value should not exceed 0.80W/m 2 for both the glazing and frame of window Total energy demand for space heating and cooling should be less than 15kWh/m 2 /yr

Study of Materials Structural Frame of Building Steel High in embodied energy Rarely ever used in construction of homes Omitted from selection Concrete High in embodied energy Heavyweight material Used mainly for larger buildings Should be avoided Timber-final choice Low in embodied energy Can be locally sourced from site Energy efficient material

Study of Materials Insulation materials Recycled newspaper Hemp Straw Bales Sheep’s wool In the end it was decided that insulation will not be required because the material we are using are straw bales and therefore act as a load bearing wall and provide insulation Walls Timber cladding ThermoPlan Ziegel Blocks Excellent thermal performance Finished construction airtight Low wastage Very low in embodied energy- However, they have to be transported from Germany- increase the embodied energy of the material Rammed Earth

Straw Bales-Final choice 450mm thick can be 300mm Very Low in embodied energy- 0.24MJ/kg (University of Bath) Low u-value 0.13W/m2 Very high level of insulation Windows and Frame Triple-glazing windows with Timber frame Improved energy efficiency Exterior noise reduced U-value for triple glazing is 2.0W/m 2 U-value for triple-glazing with multiple low emissivity coatings and Xenon filled = 0.4W/m2

2 Bedroom Design

3 Bedroom Design

4 Bedroom Design

Energy Demands Passive house standards : Space heating : 15 kWh/m²/year Hot water : 9 kWh/m²/year Appliances : 16 kWh/m²/year Ventilation : 2 kWh/m²/year Total habitable surface : 2640 m² Total thermal requirements : 9.7 kW (average) Total electrical requirements : 7 kW (average)

Solar Surface available : 524 m² for the community. Power density : 152 W/m²

Thermal Schuco Sol Premium line Thermal output : 2kW Surface : 2.69 m² Total surface for the community : 60 m² Using power density for calculation Total output (Community): 10kW

Photovoltaic Solar century C21e Electrical output : 143 W/m² Module efficiency : 14.9 % Surface for the community :450 m² Using power density for calculation Total output : 10kW

CHP Yanmar : CP10VB1 Electrical output : 9.9 kW Thermal output : 16.8 kW

Ventilation Ventilation system: Mechanical Ventilation mixed with passive natural ventilation Displacement ventilation Heat recovery system Heat loss 7kWh/m 2 per year

Ventilation Ventilation requirement: Excellent outdoor air quality -> 0 decipol Indoor air quality B (20% PD) -> 1.4 decipol Pollution level from materials 0.1 olf/m2 Pollution from occupant 1olf/pers Expected ventilation effectiveness 1.5 Required Ventilation 10 x Pollution load/(( Indoor AQ – Outdoor AQ)x effectiveness) -> 0.67 l/s per m2 or 78l/s, 84 l/s and 112l/s for the 3 houses

Ventilation Ventilation- Energy consumption: 120W for the 2 Bedrooms, 150W for the 3 and 200W for the 4 12h/ days, 250 days per year -> 360kWh/year for the 2 bedrooms house -> 450kWh/year for the 3 bedrooms house -> 600kWh/year for the 4 bedrooms house

Lighting Lighting Requirement: Kitchen, Bedrooms, Study, Bathroom 300 lux Living room, Dinning Room 200 lux Corridors 100 lux Required lighting = Required illuminance x Area / lamp lumen output x utilization factor

Lighting Lighting System: Natural Lighting Windows on the south Solar tubes on the north Luminaries for the night or cloudy days Fluorescent Lamp Compact

Lighting Lighting- Energy Consumption: 350W for the 2 bedrooms 420W for the 3 bedrooms 500W for the 4 bedrooms 10h/days in winter 8h/days in spring and autumn 6h/days in summer -> 650kWh/year for the 2 bedrooms house -> 850kWh/year for the 3 bedrooms house -> 1,000kWh/year for the 4 bedrooms house

Water Water requirement: 100l/day per person Water system Grey water recycling system

Transportation Alternative for cars Cycling, rollerblading and walking Public Transports Bus stop Electric Cars Advantages: Price of electricity Little noise Solar Parking Solar Panel

Transportation Blue Car Bats cap Lithium Metal polymer battery Life span 10 years Entirely recyclable Recharging time: 4 hours Average autonomy: 25o km

Plan of Work Use ESP-r model More details drawings Model ventilation and Lighting in more detail Homer Calculate embodied energy of materials Cost Transportation- more detail

Any Questions??