Presentation 1 Arnaud Gibert Bintou Ouedraogo Danny Tang Naeema
Hafeez Paul Dupuy
Slide 2
Aims of Project Develop 3 Conceptual Designs Design for low
Energy, Sustainable Homes Design to Code Level 5 or better Develop
efficient Energy System methods
Slide 3
Design Brief Design of 3 sustainable, energy efficient housing
types. Consisting of 20 dwellings, forming a community of net zero
carbon. Located in rural Ayrshire. Intended design is to be an
exemplar for developments of the future.
Slide 4
Basic Specifications Including: 1) 4 four bedroom house 2) 10
three bedroom house 3) 6 two bedroom house Consider transportation
of commuting Occupants Resources Relevant energy systems for the
site that will create optimum energy efficiency Community size
approx. 60 individuals
Slide 5
Definition of Zero Carbon Home Where no fossil fuels are used
to run the house with heat and power. A house which emits zero or
negative CO 2 emissions from all energy used in the building is
zero over the course of the year using energy efficient materials
and renewable technologies. Zero Carbon is equivalent to Code Level
6 of the Code for Sustainable Homes
Slide 6
Code for Sustainable Homes Introduced in England in April 2007
It is a measure of the whole home as a complete package The Code,
adopted by the Government, consists of 9 sustainable design
categories. credits are awarded, if individual targets are
attained. The total is calculated and a rating between level 1 and
6 is given, where 6 is the most efficient, zero carbon. Nine
Categories: Energy and CO 2 emissions, Pollution, Water, Health and
Well-being, Materials, Surface Water run-off, Waste, Management,
Ecology. Aim for this particular project: achieve a Code Level 5 or
better Energy efficiency for code 5 is 100%
Slide 7
Modern ZC Houses: Code 5 Reduce energy demand as much as
possible Such as insulation, ventilation etc Produce zero carbon
energy High efficiency technologies Reduce building carbon cost
Embodied energy of materials Design of building Interior layout
Exterior of building
Slide 8
Case Study 1 DFM (Design and Manufacturing) House: Oxley Woods
Block B Building Design Structure timber frame panels thermally
efficient structure to minimise heat losses. Walls Warmcel
insulation Roof Timber Cassette, rigid polyurethane insulation
Government led programme to build high quality, sustainable house
with construction cost as low as 60,000.
Slide 9
U-values and Materials Envelope Walls U = 0.12 W/m2K 145mm
cavity fully filled with Warmcel insulation made from recycled
newspaper. Roof U = 0.17 W/m2K Roof panel covered with 100mm rigid
polyurethane board. Having timber underneath the insulation allows
ventilation to limit the risks of timber rot. Windows U = 1.7 W/m2K
Double glazed with low e glass. Air tightness 2.5 m3/m2/hr at 50 Pa
The houses are built using a balloon timber frame system where the
timber stud framing is extended through several storeys with the
upper floor fixed to the studs at an intermediate level.
Slide 10
Case Study 2 Old Apple Store to a private house Awarded Code
Level 5 Construction Materials: Materials locally sourced: off-site
manufactured timber Insulation: recycled newspaper, external
insulation wood fibre planks. Sheeps wool for internal insulation
Sustainability Features Solar thermal water heating PV Cells
Passive solar design Rainwater harvesting Highly insulated with the
use of low embodied carbon material Low air permeability Wood
pellet boilers
Slide 11
U-values of materials Technical Performance External Material:
Thermally efficient timber cassette shell, u-value of 0.14W/m 2 K
Roof: engineered I beams loaded with salvaged newspaper insulation
with wood fibre, u-value 0.12W/m 2 K Floor: Concrete boards,
u-value 0.15W/m 2 K Doors and windows: Triple glazed
Slide 12
Different types of Ecohomes
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Site Location
Slide 14
Site 3km west of the existing communities of Auchinleck and
Cummnock in East Aryshire Site rises from 100 to 120m Need to
consider this in design Proposed site lies on a S-facing slope Site
on reclaimed land Surrounded by agricultural land and forestry
Slide 15
Site Analysis Site nearby Glenmuir water Maybe a resource of
hydro energy, river not big enough for electricity however a
possibility Timber factory next to site Local fabricate material
Biomass for CHP A70 and A76 both close to site Easy access routes
for the community Access for other materials Landscaped pit bing
already mined- CHP
Slide 16
Occupants Auchinleck Academy, Cumnock college and East Ayrshire
hospital all close to site Transportation Railway station Bus
Station Major roads: A70 and A76 Prestwick airport Landscape around
site aesthetically pleasing The site is environmentally pleasing
Agricultural land and forestry There are recreational attractions
Countryside Rugby Club High Quality suburban lifestyle Developments
with gardens In a isolated area gives a sense of privacy
Slide 17
Climate Conditions Estimated 1000 hours of solar gain per year
Yearly rainfall 777mm Water saving measures: Grey water Excellent
visibility Excellent Air quality Clean fresh air
Slide 18
Renewable energy Resources from climate Monthly average wind
speed >3m/s Prevailing wind in Scotland from the south-west,
direction may change from day-to-day Consider Micro wind turbine
Average yearly global radiation 1140 W/m 2 Daily sunshine figures
peak in May and June and are at there lowest in December Consider
PV panels Solar thermal
Slide 19
Energy Demands Average Home 1. Working Couple - 4,117 kWh
electricity 2. Single Person - 3,084 kWh electricity 3. Family with
two children - 5,480 kWh electricity (Parents working, children at
school) Passive House Annual heating requirement is 15kWh/(m 2 a)
Target for future projects is 42kWh/(m 2 a) Should not exceed
120kWh/(m 2 a) Heat, water and household electricity
Slide 20
Energy Efficient Methods
Slide 21
Controlling Energy systems How different types of energy
sources can be used into modern day households to reduce carbon
emissions. This diagram shows how each method can be put into use
so that energy given out is put back into the building.
Slide 22
Plan of Work Finalised 3 conceptual designs Materials Low in
embodied energy Cost Energy demands calculated and finalised An
approximation on the types of energy systems that will be used How
much energy each renewable system can provide Cost