REHAU
REHAU
REHAU
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<strong>REHAU</strong><br />
RENEWABLE AND SUSTAINABLE SOLUTIONS<br />
www.rehau.co.uk<br />
Building Solutions<br />
Automotive<br />
Industry
Agenda<br />
• Introduction to <strong>REHAU</strong><br />
• Basics of ground-source energy<br />
•Distributing energy efficiently through a building<br />
• Reducing building fabric heat losses<br />
• Water management<br />
• Waste to generate energy<br />
www.rehau.co.uk<br />
Building Solutions<br />
Automotive<br />
Industry
<strong>REHAU</strong> COMPANY HISTORY<br />
UK LOCATIONS<br />
Private Company<br />
- 1948 Founded in the Bavarian town of <strong>REHAU</strong><br />
- 1962 First UK Sales Office and Warehouse<br />
opened in Slough<br />
- 1975 First Manufacturing Plant was opened in<br />
Amlwch<br />
- 1995 Opening of the new headquarters in<br />
Ross-on-Wye<br />
- 2003 <strong>REHAU</strong> celebrated its 40th anniversary<br />
trading in the UK<br />
www.rehau.co.uk<br />
Building Solutions<br />
Automotive<br />
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<strong>REHAU</strong> WORLDWIDE<br />
THINK GLOBALLY – ACT LOCALLY<br />
6 CONTINENTS 174 LOCATIONS OVER 14,000 EMPLOYEES<br />
www.rehau.co.uk<br />
Building Solutions<br />
Automotive<br />
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<strong>REHAU</strong> DIVISIONS<br />
UNLIMITED POLYMER SOLUTIONS<br />
Industry<br />
Automotive<br />
Building<br />
Solutions<br />
www.rehau.co.uk<br />
FURNITURE, HOUSEHOLD APPLIANCES,<br />
HOSES AND INDUSTRIAL DEVELOPEMENTS<br />
EXTERIOR, WATER MANAGEMENT, AIR<br />
MANAGEMENT & SEALING<br />
WINDOW AND CURTAIN WALLING<br />
TECHNOLOGY, BUILDING TECHNOLOGY,<br />
CIVIL ENGINEERING<br />
Building Solutions<br />
Automotive<br />
Industry
RENEWABLE ENERGY SOLUTIONS<br />
RELIABILITY FOR GENERATIONS<br />
Ground-air heat<br />
exchanger<br />
Underfloor<br />
heating/cooling<br />
Ground-source<br />
probes/collectors<br />
www.rehau.co.uk<br />
Stormwater<br />
management<br />
Low energy windows /<br />
curtain walling<br />
District heating<br />
pipework<br />
Rainwater harvesting<br />
Building Solutions<br />
Automotive<br />
Industry
INTRODUCTION<br />
WHAT TYPES OF GEOTHERMAL ENERGY ARE THERE?<br />
Deep geothermal (from within the ground) (> 400m)<br />
- Hydrothermal systems (using water stores)<br />
- Petrothermal systems (artificially pumping water deep underground)<br />
- Deep geothermal probes (using a closed loop system)<br />
Ground-source (from the sun & rain) (< 300m)<br />
- Ground-source collectors (sub-surface, at a depth of 1.5m)<br />
- Ground-source probes (using boreholes at depths of ca.100m)<br />
- Ground-source spiral probes (spiral probes buried up to 5m deep)<br />
- Ground-source energy piles (using the building foundations)<br />
- Ground water bore holes (open loop systems using ground water)<br />
- Ground-to-air heat exchanger (using mechanical ventilation)<br />
www.rehau.co.uk<br />
0 m<br />
10m<br />
300m<br />
Rain 13 W/m² Solar radiation<br />
up to 600 W/m²<br />
0° 10°<br />
winter<br />
20°<br />
summer<br />
0,06 W/m² Geothermal heat flow<br />
Building Solutions<br />
Automotive<br />
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INTRODUCTION<br />
HOW DOES A HEAT PUMP WORK?<br />
Ground-source system<br />
www.rehau.co.uk<br />
0°C<br />
5°C<br />
Evaporator<br />
Heat pump<br />
Expansion<br />
valve<br />
Compressor<br />
Lower pressure Higher pressure<br />
25°C<br />
Condensor<br />
35°C<br />
Heating<br />
Building Solutions<br />
Automotive<br />
Industry
THE RIGHT SYSTEM CHOICE<br />
FOR EVERY DEMAND AN INDIVIDUAL GROUND-SOURCE SOLUTION<br />
www.rehau.co.uk<br />
Probes Collectors Spiral Coaxial probes Energy piles<br />
Space requirement Low High Medium Low None<br />
Laying depth<br />
Installation type<br />
50 – 300 m<br />
Driller<br />
ca. 1.5 m<br />
Groundworker<br />
1.5 – 4.5 m<br />
Groundworker<br />
10 – 50 m<br />
GRD-driller<br />
5 – 20 m<br />
Specialist driller<br />
Permissions Necessary Less stringent Less stringent Necessary Necessary<br />
Laying costs High Low Medium Medium-high Very low<br />
Retrofit possible? Yes Yes Yes Yes No<br />
Typical COP<br />
(heating operation)<br />
4 – 4.5 3 – 3.5 3.5 - 4 4 – 4.5 4 – 4.5<br />
Building Solutions<br />
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THE RIGHT SYSTEM CHOICE<br />
FOR EVERY DEMAND AN INDIVIDUAL GROUND-SOURCE SOLUTION<br />
www.rehau.co.uk<br />
Probes* Collector* Sprial Coaxial probes Energy piles*<br />
Poor soil 25 W/m 10 W/m² 100-400 W/probe 25 W/m 25 W/m<br />
Average soil 50 W/m 20 - 30 W/m² 400-500 W/probe 50 W/m 50 W/m<br />
Excellent soil 80 W/m 40 W/m² 600-700 W/probe 80 W/m 80 W/m<br />
Ave. brine temp. 0 to 3°C -3 to 5°C -3 to 5°C 0 to 3°C 2 to 8°C<br />
* According to the VDI 4640 (with 1800 hours of operation per year)<br />
Building Solutions<br />
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GROUND-SOURCE SYSTEMS<br />
CASE STUDIES<br />
Moseley Hall Hospital, Birmingham<br />
Ground-source heating using 28 RAUGEO<br />
probes PE-Xa at 152m deep<br />
www.rehau.co.uk<br />
Building Solutions<br />
Automotive<br />
Industry
GROUND-SOURCE SYSTEMS<br />
CASE STUDIES<br />
Solar Storage Crailsheim (DE)<br />
In one of the largest geothermal heat reserves in<br />
Germany, the excess heat from 10,000m 2 of solar<br />
collectors in the summer is saved for use in the<br />
winter with help of 80 RAUGEO PE-Xa probes.<br />
www.rehau.co.uk<br />
Building Solutions<br />
Automotive<br />
Industry
GROUND-SOURCE SYSTEMS<br />
CASE STUDIES<br />
Suffolk One College, Ipswich<br />
Used ICAX interseasonal heat transfer<br />
system. 14,000m of 25mm RAUGEO PE-<br />
Xa pipe used for solar capture and 18 x<br />
100m PE-Xa probes for heat storage<br />
www.rehau.co.uk<br />
Building Solutions<br />
Automotive<br />
Industry
GROUND-SOURCE SYSTEMS<br />
CASE STUDIES<br />
Platform Heating Bad Lauterberg<br />
Clearing of snow and ice on the platforms with<br />
ground-source energy using RAUGEO collect<br />
PE-Xa and RAUGEO probes PE 100.<br />
www.rehau.co.uk<br />
Building Solutions<br />
Automotive<br />
Industry
GROUND-SOURCE SYSTEMS<br />
CASE STUDIES<br />
Kinsale Lifeboat Station, Ireland<br />
Ground-source heating using 1200m of PE-Xa pipe<br />
integrated into structural concrete caissons, which support<br />
the building. Uses tidal flow to extract ground-source<br />
energy.<br />
www.rehau.co.uk<br />
Building Solutions<br />
Automotive<br />
Industry
RENEWABLE ENERGY SOLUTIONS<br />
RELIABILITY FOR GENERATIONS<br />
Ground-air heat<br />
exchanger<br />
Underfloor<br />
heating/cooling<br />
Ground-source<br />
probes/collectors<br />
www.rehau.co.uk<br />
Stormwater<br />
management<br />
Low energy windows /<br />
curtain walling<br />
District heating<br />
pipework<br />
Rainwater harvesting<br />
Building Solutions<br />
Automotive<br />
Industry
INTRODUCTION<br />
HOW A GROUND-AIR HEAT EXCHANGER WORKS<br />
www.rehau.co.uk<br />
Building Solutions<br />
Automotive<br />
Industry
CASE STUDIES<br />
GROUND-AIR HEAT EXCHANGER<br />
Tesco supermarket in Poland<br />
- Air flow rate 2,700 m³/h<br />
- Distribution pipes AWADUKT Thermo 500 OD<br />
- 20 x 35m runs of 200 OD pipe = 700m<br />
- Energy saving: 20,500 kWh/a<br />
- 1 year research of system by University of Poznan<br />
www.rehau.co.uk<br />
Building Solutions<br />
Automotive<br />
Industry
CASE STUDIES<br />
GROUND-AIR HEAT EXCHANGER<br />
QE School, Wimborne, Dorset<br />
- Flow rate: 36,000 m 3 /h<br />
- 3 Tichelmann grids, each 60m long<br />
- DN1200 header pipe<br />
- 60 AWADUKT Thermo runs of DN250, total length of<br />
3,500m<br />
- BSF ‘Pathfinder’ school<br />
www.rehau.co.uk<br />
Building Solutions<br />
Automotive<br />
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CASE STUDIES<br />
GROUND-AIR HEAT EXCHANGER<br />
Sutton Life Centre, Surrey<br />
1 st grid:<br />
- Flow rate 2,880 m³/h<br />
- 26m of DN500 header pipes<br />
- 11 x AWA Thermo runs of DN200 (each 18m<br />
long)<br />
2 nd grid:<br />
- Flow rate 7,200 m³/h<br />
- 52m DN750 header pipe<br />
- 35 x AWA Thermo runs of DN200 (each 30m<br />
long)<br />
www.rehau.co.uk<br />
Building Solutions<br />
Automotive<br />
Industry
CASE STUDIES<br />
GROUND-AIR HEAT EXCHANGER<br />
Tuke School, London<br />
- Flow rate: 9,000 m 3 /h<br />
- DN1050 header pipes<br />
- 5 x 30m runs of DN 500 AWADUKT Thermo<br />
- Special methane resistant NBR seals<br />
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Building Solutions<br />
Automotive<br />
Industry
CASE STUDIES<br />
GROUND-AIR HEAT EXCHANGER<br />
Carclaze School, Cornwall<br />
- Flow rate: 3,457 m 3 /h<br />
- DN500 AWA Thermo header pipes<br />
- 16 x 30m runs of DN200 AWADUKT Thermo<br />
www.rehau.co.uk<br />
Building Solutions<br />
Automotive<br />
Industry
RENEWABLE ENERGY SOLUTIONS<br />
RELIABILITY FOR GENERATIONS<br />
Ground-air heat<br />
exchanger<br />
Underfloor<br />
heating/cooling<br />
Ground-source<br />
probes/collectors<br />
www.rehau.co.uk<br />
Stormwater<br />
management<br />
Low energy windows /<br />
curtain walling<br />
District heating<br />
pipework<br />
Rainwater harvesting<br />
Building Solutions<br />
Automotive<br />
Industry
UNDERFLOOR HEATING / COOLING<br />
ENERGY REQUIREMENTS<br />
• Energy requirements of a UK home can typically come from 40-50<br />
W/m²<br />
• Average family home (120-160m² ) requires 6-7kW<br />
• Optimum flow temperature for heating from ground-source heat<br />
pumps (≈ 35-40°C)<br />
• Optimum flow temperature for cooling is ≈ 14°C, possible to obtain<br />
cooling directly from primary ground-source circuit, i.e. simple pump<br />
(no heat pump)<br />
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Building Solutions<br />
Automotive<br />
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CONCRETE CORE TEMPERING<br />
IDEAL FOR UNDERFLOOR HEATING / COOLING<br />
Low warm-up temperatures - Heat where it is needed - Heating and Cooling with a single system<br />
www.rehau.co.uk<br />
Building Solutions<br />
Automotive<br />
Industry
RENEWABLE ENERGY SOLUTIONS<br />
RELIABILITY FOR GENERATIONS<br />
Ground-air heat<br />
exchanger<br />
Underfloor<br />
heating/cooling<br />
Ground-source<br />
probes/collectors<br />
www.rehau.co.uk<br />
Stormwater<br />
management<br />
Low energy windows /<br />
curtain walling<br />
District heating<br />
pipework<br />
Rainwater harvesting<br />
Building Solutions<br />
Automotive<br />
Industry
HEAT LOSSES THROUGH THE BUILDING FABRIC<br />
WINDOWS AND CURTAIN WALLING<br />
Between 10-20% of the energy losses through the building fabric is related to glazed<br />
areas. Energy efficient window and curtain walling solutions enable to realise modern<br />
architecture, maximise the use of natural day light and minimise thermal losses.<br />
www.rehau.co.uk<br />
Building Solutions<br />
Automotive<br />
Industry
WINDOW SYSTEMS<br />
TYPICAL THERMAL PERFORMANCES<br />
BRE Green Guide 2008<br />
A+ Rating for PVC Windows in commercial<br />
applications.<br />
Thermal Performance<br />
UK style windows – U w Value of up to 0.9 W/m2K<br />
Passive house standard – U w Value of up to 0.73 W/m2K<br />
Can be achieved by<br />
100% polymeric<br />
reinforcement.<br />
www.rehau.co.uk<br />
Building Solutions<br />
Automotive<br />
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CURTAIN WALLING<br />
EFFECTIVE AND SUSTAINABLE NATURAL DAYLIGHT<br />
www.rehau.co.uk<br />
Curtain walling system U f = 0.74 / 0.76W/m 2 K<br />
CONTROLLED NATURAL DAYLIGHT REDUCES NEED FOR ARTIFICAL LIGHT. DIRECT CORRELATION TO<br />
REDUCED POWER STATION DEMAND THUS SUBSTANTIAL C0 2 SAVINGS ARE GUARANTEED<br />
Building Solutions<br />
Automotive<br />
Industry
RENEWABLE ENERGY SOLUTIONS<br />
RELIABILITY FOR GENERATIONS<br />
Ground-air heat<br />
exchanger<br />
Underfloor<br />
heating/cooling<br />
Ground-source<br />
probes/collectors<br />
www.rehau.co.uk<br />
Stormwater<br />
management<br />
Low energy windows /<br />
curtain walling<br />
District heating<br />
pipework<br />
Rainwater harvesting<br />
Building Solutions<br />
Automotive<br />
Industry
UK WATER CONSUMPTION<br />
FACTS AND FIGURES<br />
Each person in UK consumes 130 litres of potable water a day<br />
43 litres of that from flushing the toilet<br />
Possible to save 50% of daily water consumption by harvesting<br />
rainwater<br />
www.rehau.co.uk<br />
Building Solutions<br />
Automotive<br />
Industry
STORMWATER MANAGEMENT<br />
ATTENUATION SYSTEMS<br />
• Can be used for soakaways or stormwater<br />
storage<br />
• No silting up of sediments<br />
• Easy and flexible installations<br />
• Can be used for commercial / industrial<br />
rainwater harvesting applications<br />
www.rehau.co.uk<br />
Building Solutions<br />
Automotive<br />
Industry
RENEWABLE ENERGY SOLUTIONS<br />
RELIABILITY FOR GENERATIONS<br />
Ground-air heat<br />
exchanger<br />
Underfloor<br />
heating/cooling<br />
Ground-source<br />
probes/collectors<br />
www.rehau.co.uk<br />
Stormwater<br />
management<br />
Low energy windows /<br />
curtain walling<br />
District heating<br />
pipework<br />
Rainwater harvesting<br />
Building Solutions<br />
Automotive<br />
Industry
PRE-INSULATED DISTRICT HEATING PIPE<br />
IDEAL FOR BIOMASS AND BIOGAS INSTALLATIONS<br />
Pipe requirements:<br />
- Low heat losses<br />
- Single and dual pipes<br />
- Resistant to temperatures up to<br />
95°C<br />
- Fast installation<br />
- Reliable carrier pipe<br />
www.rehau.co.uk<br />
Building Solutions<br />
Automotive<br />
Industry
BIOGAS – CHP & DISTRICT HEATING<br />
RENEWABLE & SUSTAINABLE ELECTRICITY PRODUCTION<br />
1. Cow manure is heated to<br />
produce methane<br />
2. Methane generated sent to CHP<br />
unit for electrical generation.<br />
3. Excess heat from CHP fed back<br />
into fermenter and used for<br />
district heating<br />
4. Solid waste reused as fertiliser<br />
Liquid animal<br />
waste<br />
www.rehau.co.uk<br />
Fermenter<br />
Biogas powered<br />
CHP<br />
District heating<br />
Solid waste for<br />
fertilizer<br />
CHP supplies<br />
electricity to grid<br />
Building Solutions<br />
Automotive<br />
Industry
ANAEROBIC DIGESTION<br />
CASE STUDY<br />
Alderley Edge, Cheshire<br />
- Produces heat and electricity from tomato<br />
plant leaves and waste tomatoes.<br />
- Plant built by Biotech Services<br />
Used 400m of<br />
RAUBIO digester<br />
heating pipework<br />
www.rehau.co.uk<br />
Building Solutions<br />
Automotive<br />
Industry
THANK YOU FOR YOUR ATTENTION<br />
ANY QUESTIONS?<br />
www.rehau.co.uk<br />
Building Solutions<br />
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