1. Sustainable Hotel Design Presentation 2 Passive Design Group 5

2. Site Analysis Site C –Panoramic Views –Better Access –“Easier” Excavation –Less Visual Impact –Greatest Water Source

3. Group Aims Passive Design Design out mechanical services as much as possible Demand Reduction

4. Group Aims Simulation – form, fabric, orientation Ventilation and Air flow Building Layout

5. Base Case ‘Shoe box’ 2 Storey Floor Area 82x18 = 1476m² Volume 82x18x6 = 8856m³ Glazing area 30% each façade Construction U-value 0.3 W/m²k Operations: occupancy, lighting, equipment Control – heating set point 15ºC N

6. Orientation Does orientation make a difference? 1.8% change in heating requirement from best to worst. 3369 kWh Annual heating requirement 3432 kWh3391 kWh3384 kWh

7. Form Panoramic Views Building Layout

8. Orientation L-shape 3416 kWh3412 kWh3438kWh Confirms that orientation does not make much of a difference Less than 1% change in heat loss

9. Glazing Areas SOUTH50%3362 kWh NORTH30% SOUTH70%3358 kWh NORTH30% SOUTH90%3378 kWh NORTH30% SOUTH70%3265 kWh NORTH15% South glazing 70% optimum Decrease in north glazing gives a decrease in heat loss A decrease in north glazing from 30 -15% only gives a 2.7% decrease in heat loss NORTH SOUTH

10. Marc Smeed Materials and Constructions

11. Construction Materials Base Case Material Cavity Wall U-Value 0.3W/m2K 3412kWhrs Lt Brown Brick103mm Cavity50mm Aerated Concrete115mm Insulation board55mm

12. Construction Materials High insulation wall construction Has low U-value U-Value 0.2W/m2K 3324kWhrs Reduction 3.2% Lt Brown Brick100mm Glass wool150mm Air50mm Glass wool150mm Breeze block100mm

13. Construction Materials High external Thermal mass + Well insulated U-Value 0.12W/m2K 3291 kWhrs Reduction 4.2% Slate100mm Glasswool150mm Air50mm Glasswool150mm Inner leaf brick100mm

14. Construction Materials High internal Thermal mass + Well insulated U-Value 0.12W/m2K 3259 kWhrs Reduction 5% Lt Brown Brick100mm Glasswool150mm Air50mm Glasswool150mm Slate100mm

15. Glazing Base Case material Standard Double Glazing U-Value 2.75W/m2K 3412kWhrs Plate Glass6mm Air16mm Plate Glass6mm

16. Glazing Low-E glass U-Value of 2.78 W/m2K 3191kWhrs Reduction 4.4% Low-e glass6mm Air12mm Low-e glass6mm

17. Glazing Low-E glass Triple Glazing U-Value of 1.78kW/m2K 2991kWhrs Reduction 10.4% Low-e glass6mm Air10mm Low-e glass6mm Air10mm Low-e glass6mm

18. Form and Fabric Combining: –Orientation –Optimum Glazing Areas –Materials Demand 2475kWhrs Overall demand reduction of - 28%

19. Bruce Henry Heat Recovery and Natural Ventilation

20. Ventilation for hotels Main criteria As Quiet as possible. Offer a high level of control to allow for maximum comfort. Increased ventilation for kitchen/gym and swimming pool. Acoustic isolation from other rooms and corridors.

21. CIBSE Guide Highlighted areas of increased ventilation Swimming pool = 1.35 to 2m 3 /s 26-30°C Kitchen = >30ach 18-23°C Other areas Gym/Changing rooms = 10ach 24-25 °C Bedroom = >1ach 20-24°C Restaurant = 10 to 15ach 21-22°C Open spaces = 10 to 15ach 20-27°C

22. Dehumidification Area of concern in swimming pool/gym and kitchen. Solution, increase supply of fresh. Consideration- to prevent condensation forming and provide occupants comfort

23. Reducing power consumption 1)Heat recuperator Efficiency 60% 2)High efficiency fans 3)Frequency inverter Calculates air flow with respect to dehumidification load, combination of 2 and 3 reduces power to 12.5% of maximum load 4)Heat recovery/Heat pump COP=3, supply 80% of seasonal heating requirement

24. Low e coating and removable shading Prevailing wind Bedroom 1Bedroom 2 Under floor heating (ground source heat pump) Ducts from atrium Restaurant/ Office Heat Recuperator Corridor Extractor fans Winter Strategy Channels feed back to atrium

25. Low e coating and removable shading Prevailing wind Bedroom 1Bedroom 2 Restaurant/ Office Heat Recuperator Corridor Extractor fans Summer Strategy Channels feed back to atrium

26. Greig Paterson Building Design And Layout

27. Initial Design N

28. Ground Level Circulation Staff Zones Food and Drink Leisure Plant Rest Rooms N

29. 1 st Level Circulation Bedrooms N

30. Conclusions Base Case Demand – 3412 kWh After Form, Fabric and Orientation 28% Reduction CIBSE Guide Part F – good practice 35% reduction on typical practice Base Case = Typical Practice

31. Thank You For Listening Any Questions?