Energy Loads analysis, Ecotect Model
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The document analyzes climate and energy loads for a double-story house in Brussels, Belgium, emphasizing climatological factors such as average temperatures, rainfall, and humidity. It includes energy load calculations with default and improved materials, along with suggestions for optimizing energy efficiency through better materials and window placement. The analysis indicates that significant mechanical heating may be required during winter, while passive cooling strategies may suffice in summer months due to temperature proximity to comfort zones.
Energy Loads analysis, Ecotect Model
- 1. Analysis of climate/ energy loads (double story house) (CITY BELGIUM BRUSSELS) PRESENTED BY: IRFAN SHAFIQUE 2013-ARCH-31
- 2. Contents Climate 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
- 4. Average temperature(the average low at 1°C in winter and only 23°C in summer).
- 5. Max and Min temperature
- 6. Wind analysis(wind temp 10 to 15,relative humidity 50%to 60%)
- 7. 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.
- 8. 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%).
- 10. Relative humidity(55% to 80%)
- 12. Average cloud cover W eekly Summary
- 15. Monthly analysis
- 18. 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).
- 21. Increased activity yellow box toward left
- 22. 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.
- 23. 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.
- 24. Process to calculate the Daylight factor Prepare geometry(which is two sotrey in this case) Set site location(which is Belgium Brussels) Set material properties(default materials) Setup Grid Perform Daylight factor
- 46. All Visible Thermal Zones Comfort: Zonal Bands Max Heating: 4456 W at 21:00 on 25th February Max Cooling: 11277 W at 14:00 on 30th August HEATING COOLING TOTAL MONTH (Wh) (Wh) (Wh) ------------ -------- -------- -------- Jan 1128523 7854 1136377 Feb 946063 7094 953157 Mar 701454 5554 707008 Apr 458503 19523 478026 May 255941 19202 275142 Jun 58015 104002 162017 Jul 69325 52727 122051 Aug 52951 124588 177539 Sep 71270 40192 111462 Oct 391293 16503 407796 Nov 849497 5775 855272 Dec 1256615 8115 1264730 ------------ -------- -------- ----- TOTAL 6239450 4 11128 6650577 ------------ -------- -------- --------
- 47. 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
- 48. 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
- 54. Monthly heating and cooling
- 55. Max Heating: 4456 W at 21:00 on 25th February Max Cooling: 11277 W at 14:00 on 30th August HEATING COOLING TOTAL MONTH (Wh) (Wh) (Wh) ------------ -------- -------- -------- Jan 1128523 7854 1136377 Feb 946063 7094 953157 Mar 701454 5554 707008 Apr 458503 19523 478026 May 255941 19202 275142 Jun 58015 104002 162017 Jul 69325 52727 122051 Aug 52951 124588 177539 Sep 71270 40192 111462 Oct 391293 16503 407796 Nov 849497 5775 855272 Dec 1256615 8115 1264730 ------------ -------- -------- -------- TOTAL 5839450 381128 6650577 ------------ -------- -------- -------- PER M² 40022 2637 42660 Floor Area: 155.899 m2
Editor's Notes
- #5: Weather analysis (average temperature)
- #8: Wind analysis
- #12: On average, November is the most humid, On average, June is the least humid month.
- #15: 400 w/m2
- #16: Humidity, temperature,cloud cover etc.
- #17: Weekly analysis(temp,humidity,solar radiations,cloud cover)
- #20: Orientation based on average daily incident radiations
- #21: Yellow box comfort zone without heating and cooling
- #29: Middle zone xz
- #30: At first floor daylight factor value ranges 0-10%
- #31: At roof height
- #32: Front facade
- #33: Rear side
- #34: Side view
- #36: Sill level
- #37: First floor sill level
- #39: December
- #40: june
- #41: bedroom
- #42: ist June
- #43: Hourly gains
- #44: august
- #45: Btu/hr
- #50: After shading and reducing windows
- #52: Internally reflected
- #54: Roof top
- #55: watt
- #56: Reduction in heating and cooling loads as there are heating loads so in winter season we can use glazing,sky light in the center as it is looking cold area…