Sustainable Hotel Design. Presentation 3 Supply Analysis Group 5. Previous Presentations. 1 st presentation Site analysis Site Selection 2 nd presentation Passive design Demand reduction. Where We Are Now. North. 1 st level. Site C Initial Building Design. Ground level.
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Possible Supply Sources
= Collection Area x Average Annual Rainwater Yield
x Run-off coefficient x fractional collector efficiency
= 1530m^2 x 2277.8mm x 0.8 x 0.8
= 2,230,422 litres/year
= 6,111 litres/day
= bathroom use in morning x no. of people
= 80 litres x 70
= 5,600 litres/day (full capacity)
= 11,711 litres
= 9,900 litres
Gives an idea of power size ratio
Give an idea of instillation cost and payback period
(efficiency of 18%)
α = 1/7 Vmean=6.2ms-1 Pmean=279.8W/m2 Pbetz=165.1W/m2
Total available to wind turbines = 1446kWh/m2 per year
Frontal area = 5 x 3m
11,000 kWh per year
£2.72 per kWh for year
600 Watt wind turbine/generator £1,845
Diameter 2.55mOutput 450kWh/m2
Total 2300kWh –
£0.80 per kWh per year
1500 Watt wind turbine/generator £3,655
Diameter 3.5m Output 769kWh/m2
£0.49 per kWh per year
6000 Watt wind turbine/generator £7,765
Diameter 5.5m Output 816kWh/m2
£0.40 per kWh per year
15000 Watt wind turbine/generator £14,900
Diameter 9m Output 762kWh/m2
£0.31 per kWh per year
34 metres and power output of 8kW.
Flow requirement 40 l/sec
Micro hydro will be used to meet as much of the supply demand as possible. (70MWh/year)
Proven 1500w turbines will make up difference. (14.8MWh/year)
Total cost of installation = £27.5K
Batteries will be incorporated to store power from the turbines
delivers around 1000kW.h per year meeting around
half hot water demand.
heating and heating the swimming pool.
1kWh/m² (daily average)
Space heating requires large collector areas to supply heat in winter when it is needed most.
(200-300m² for hotel)
required to be
pool to heat
it (would cost
around 11°C (sea temperature varies 5- 14 °C annually). Efficiency drops when temperature drops in winter, when it is needed most.
Require top up heating from CHP if radiators are to be used, resulting in a lower COP.
Any Questions ?