energy loads analysis, ecotect model

Analysis of climate/ energy loads (double story house)

(CITY BELGIUM BRUSSELS)PRESENTED BY: IRFAN SHAFIQUE 2013-ARCH-31

ContentsClimate analysis Belgium Brussels

Ecotect Model specifications(two storey house)

Day lighting analysis with default materials

Energy loads analysis with default materials

Energy loads analysis with improved materials and geometry(orientation , window shades, window sizes etc.)

Suggestions regarding energy loads

Suggested techniques

Average temperature(the average low at 1°C in winter and only 23°C in summer).

Max and Min temperature

Wind analysis(wind temp 10 to 15,relative humidity 50%to 60%)

Winds tend to be slightly stronger in winter but the most constant weather pattern would be rainfall. Snow is possible but doesn’t occur very often.

Rainfall(monthly analysis) On average Belgium gets more rainfall than the UK and slightly less than the Netherlands, the rainiest months are July (mid-summer) and December (early winter). The month with the least rain in Brussels is actually April (mid-spring) – but still carry a fold-up with you just in case! Despite so much rain, humidity is moderate (around 50%).

http://www.brussels.info/belgium/

http://amsterdam.info/netherlands/

Relative humidity(55% to 80%)

Relative humidity

Average cloud coverWeekly SummaryAverage Cloud Cover (%)Location: Brussels, Belgium (50.8°, 4.3°)© W eather Tool

%

<01020304050607080

90+

Wk

Hr

%

48

1216

2024

2832

3640

4448

52

4

8

12

16

20

24

0

20

40

60

80

100

Wk

48

1216

2024

2832

3640

4448

52

Direct solar radiations

Diffuse solar radiations

Monthly analysis

Analysis Diurnal temperature data shows daily cycles of temperature and radiation on the site winter months, the temperature range is well below the comfort zone, so we’ll likely need to use mechanical heating (though solar radiation is high during the day). During the summer months the temperature ranges are close to the comfort zone so we’ll likely be able to condition the building passively (although there is a larger temperature swing from night to day).

Psychometric chart

Increased activity yellow box toward left

AVERAGE WEATHER IN BRUSSELS, BELGIUM•Brussels has a temperate climate with four seasons spanning the whole year. Temperatures are relatively mild during the whole year. On average Belgium gets more rainfall than the UK and slightly less than the Netherlands, the rainiest months are July (mid-summer) and December (early winter). The month with the least rain in Brussels is April (spring). Despite so much rain, humidity is moderate (around 50%).

What's the best time to travel to Brussels in Belgium? Here are some facts: The months June, July, August and September have a nice average temperature.•On average, the warmest month is August.•On average, the coolest month is January.•July is the wettest month.•May is the driest month.

Daylight factor The concept of Daylight Factor (DF) was developed in the United Kingdom in the early 20th century. Daylight Factor is a ratio that represents the amount of illumination available indoors relative to the illumination present outdoors at the same time under overcast skies. Daylight Factor is typically calculated by dividing the horizontal work plane illumination indoors by the horizontal illumination on the roof of the building being tested and then multiplying by 100.

Process to calculate the Daylight factorPrepare geometry(which is two sotrey in this case)Set site location(which is Belgium Brussels)Set material properties(default materials)Setup GridPerform Daylight factor

%

68.0+

66.0

64.062.0

60.058.0

56.054.0

52.0

50.0

48.0

Daylight AnalysisDaylight FactorValue Range: 48.0 - 68.0 %© E C O T E C T v 5

%

68.0+66.0

64.062.0

60.058.0

56.054.0

52.050.0

48.0


%

10.0+9.0

8.07.0

6.05.0

4.03.0

2.01.0

0.0

Daylight AnalysisDaylight FactorValue Range: 0.0 - 10.0 %© E C O T E C T v5

%

10.0+9.0

8.07.0

6.05.0

4.03.0

2.01.0

0.0


%

10.0+

9.0

8.0

7.0

6.0

5.0

4.0

3.0

2.01.0

0.0


%

10.0+9.0

8.07.0

6.05.0

4.03.0

2.01.0

0.0


fc

100+

90

8070

60

50

40

30

20

10

0

Daylight AnalysisDaylighting LevelsValue Range: 0 - 100 fc© E C O T E C T v 5

N15°

30°

45°

60°

75°

90°

105°

120°

135°

150°

165°180°

195°

210°

225°

240°

255°

270°

285°

300°

315°

330°345°

09

10

1112

13

14

15

16

%

10.0+9.0

8.07.0

6.05.0

4.03.0

2.01.0

0.0


N15°

30°

45°

60°

75°

90°

105°

120°

135°

150°

165°

180°

195°

210°

225°

240°

255°

270°

285°

300°

315°

330°

345°

05 06 0708

09

10

11

12

13

1415

16

17

18

19

20

%

10.0+9.0

8.07.0

6.05.0

4.03.0

2.01.0

0.0


0 2 4 6 8 10 12 14 16 18 20 22

W/m2C

0 0.0k

10 0.5k

20 1.0k

30 1.4k

40 1.9k

Outside Temp. Beam Solar Diffuse Solar Wind Speed Zone Temp. Selected Zone

NOTE: Values shown are environment temperatures, not air temperatures.HOURLY TEMPERATURES - bedroom Monday 1st J anuary (1) - Brussels, Belgium

0 2 4 6 8 10 12 14 16 18 20 22

W/m2C

-10 0.0k

0 0.4k

10 0.8k

20 1.2k

30 1.6k

40 2.0k


NOTE: Values shown are environment temperatures, not air temperatures.HOURLY TEMPERATURES - drawingroom Friday 1st J une (152) - Brussels, Belgium

0 2 4 6 8 10 12 14 16 18 20 22

00

6000

6000

12000

12000

18000

18000

24000

24000

W

30000

HVAC Load Conduction SolAir Direct Solar Ventilation Internal Inter-Zonal

HOURLY GAINS - All Visible Thermal Zones Monday 1st J anuary (1) - Brussels, Belgium

0 2 4 6 8 10 12 14 16 18 20 22

Btu/hr.ft2F

22 0.6k

42 2.0k

62 3.4k

82 4.8k

102 6.2k


NOTE: Values shown are environment temperatures, not air temperatures.HOURLY TEMPERATURES - All Visible Thermal Zones Monday 27th August (239) - Brussels, Belgium

J an Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

0.00.0

1364721.9

1364721.9

2729443.8

2729443.8

4094165.8

4094165.8

5458887.5

5458887.5

Btu/hr

6823609.5

Heating Cooling

MONTHLY HEATING/COOLING LOADS - All Visible Thermal Zones Brussels, Belgium

MONTHLY HEATING/COOLING LOADS

All Visible Thermal ZonesComfort: Zonal Bands

Max Heating: 4456 W at 21:00 on 25th FebruaryMax Cooling: 11277 W at 14:00 on 30th August

HEATING COOLING TOTALMONTH (Wh) (Wh) (Wh)------------ -------- -------- --------Jan 1128523 7854 1136377Feb 946063 7094 953157Mar 701454 5554 707008Apr 458503 19523 478026May 255941 19202 275142Jun 58015 104002 162017Jul 69325 52727 122051Aug 52951 124588 177539Sep 71270 40192 111462Oct 391293 16503 407796Nov 849497 5775 855272Dec 1256615 8115 1264730------------ -------- -------- -----TOTAL 6239450 4 11128 6650577------------ -------- -------- --------PER M² 40022 2637 42660

After material improvements and shading(u values)

Shading on windows

Changes in window placement

Materials

Window(double glazed 2.2 u value) glass ,argon,glass refrence 119 page

Floors (carpet,chipboard,fibre,textile,organic)

Walls(plaster brick,wool resin,brick,plaster)

Soil concrete u value o.35

Doors 2.9 wood oak

zone setting details and schedules settings

lux level for different zones

Set the clothing level

Make schedules for each zone according to their usage

Set the hours of operation

Lux levels for different areas

kitchen 200

Corridor 100

drawing 250

living 3oo

washroom 200 dinning 150

%

80.0+76.0

72.068.0

64.060.0

56.052.0

48.044.0

40.0


%

68.0+

66.0

64.062.0

60.058.0

56.054.0

52.0

50.0

48.0


%

2.10+1.89

1.681.47

1.261.05

0.840.63

0.420.21

0.00

Daylight AnalysisInternally ReflectedValue Range: 0.00 - 2.10 %© E C O T E C T v 5

%

2.10+1.89

1.681.47

1.261.05

0.840.63

0.420.21

-0.00

Daylight AnalysisInternally ReflectedValue Range: 0.00 - 2.10 %© E C O T E C T v 5

%

10.0+9.0

8.07.0

6.05.0

4.03.0

2.01.0

0.0


Monthly heating and cooling

J an Feb Mar Apr May J un J ul Aug Sep Oct Nov Dec

00

400000

400000

800000

800000

1200000

1200000

1600000

1600000

W

2000000

Heating Cooling

MONTHLY HEATING/COOLING LOADS - All Visible Thermal Zones Brussels, Belgium

Max Heating: 4456 W at 21:00 on 25th FebruaryMax Cooling: 11277 W at 14:00 on 30th August

HEATING COOLING TOTALMONTH (Wh) (Wh) (Wh)------------ -------- -------- --------Jan 1128523 7854 1136377Feb 946063 7094 953157Mar 701454 5554 707008Apr 458503 19523 478026May 255941 19202 275142Jun 58015 104002 162017Jul 69325 52727 122051Aug 52951 124588 177539Sep 71270 40192 111462Oct 391293 16503 407796Nov 849497 5775 855272Dec 1256615 8115 1264730------------ -------- -------- --------TOTAL 5839450 381128 6650577------------ -------- -------- --------PER M² 40022 2637 42660Floor Area: 155.899 m2

energy loads analysis, ecotect model

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