7/30/2019 Background, Climate and The Solar Heating System

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Background, Climate and The Solar Heating S

Short Term Ther

Diffusersprovide accessto the hottestwater in both Short Term ThermalStoragetanks

Borehole Thermal Energy Storage

Outer edge of sand fill,insulation and polyethylenesheet.

Boreholes

ToEnergyCenter

Hot water

Coolwater

110mm

35m

0.3m

0.1m

200mm XPS insulationGraded sand

U-Tube

Water heattransfer fluid

Borehole

Grout tube

Pipe spacer

Excavation level

Calgary Amsterdam Copenhagen Munich Stockholm Vienna

Heating Degree DaysIncidentIrradiation (MJ/m)*

Latitude (N)

5199 3010 3611 3733 4291 31676426 3937 4289 4750 4280 4731

51.12 52.28 55.62 48.12 59.56 48.12

* Incident solar irradiation iscalculated from horizontalirradiation datausing theReindlmodel. The surfacetilt angleisequalto theLatitude.

Data Source:http://apps1.eere.energy.gov/buildings/energyplus/weatherdata_about.cfm |Calgaryweather data: CWEC|E uropean weather data: IWEC

Collector and District Heating Piping

Climate Comparison

District HeatingLoops

LANE

LANE

LANE

Solar CollectionLoop

Solar Collection Loop

Garage SolarCollectors

Houses

Legend

En

ergy

Ce

ntre

Borehole Field

DRAKE LANDINGCOURT

DRAKE LANDINGLANE

Residential Sector Energy Use (%)

System Schematic

Space Cooling

63%

Lighting

Other Appliances

Major Appliances

Water Heating

Space Heating

2%

4%

5%

9%

17%

Home Energy Efficiency and Solar Energy

0

10

20

30

40

50

60

70

80

90

100

110

GJ GJ

TypicalHome

DrakeLandingHome

NaturalGas

Solar

0

10

20

30

40

50

60

70

80

90

100

110

savings=93.9 GJ

TypicalHome

DrakeLandingHome

savings=16.9 GJ

Space Heating Water Heating

Total Energy Savings=110.8 GJ

GHGEmission Reductions=5.65 tonnes

Ambient Air Te

AverageAmbientTemperature(C)

-10

-5

0

5

10

15

20

July

Augu

st

Sept

ember

October

November

December

January

February

M

Natural Resources

Canada

Ressources naturelles

Canada

Detached garageswithsolar collectorson the roofs Two-storey

single-familyhomes

Borehole seasonalthermalstorage(long-term)

District heating loop(below grade) connectsto homesin community

EnergyCentrewith short-term thermalstorage tanks

Solarcollector loop