flood.energy modeling as a success factor in building...
TRANSCRIPT
PARAMETRIC MODELLING
Cobalt Engineering
CHRIS FLOOD, BSc EngCobalt Engineering
Twitter hashtag: #ps10
ABOUT COBALT• Fully integrated mechanical and electrical engineering
consulting services
• Passion for innovative design
• Sustainable focus
WHAT IS ENERGY MODELLING?
• Integrated design
• Advanced energy and thermal comfort
• Advanced HVAC
• LEED Optimize Energy Performance • LEED Optimize Energy Performance
• LEED Daylighting & Views
• Life Cycle Cost
• Passive Design
• Computational Fluid Dynamics (CFD)
• Long-term responsibility
WHAT IS ENERGY MODELLING?
ANALYSIS AND DESIGN• High-performance building audits
• Integrated design facilitation
• Low-energy envelope design and analysis
• Renewable energy system design
WHAT SOFTWARE DO WE USE?• IES Virtual Environment
• eQuest
• CanQuest (coming soon)
• Energy Pro
• EE4• EE4
• TAS
• Phoenics
• Star CCM+
• RHINO
TYPES OF MODELS• Annual energy simulation
• Peak load (system sizing)
• Used for:
– Building element comparison
– Mechanical system selection– Mechanical system selection
– Programs such as LEED, funding incentives
– Thermal mass storage
– Comfort comparison
PASSIVE DESIGN• Façade design
• Glazing
• Thermal mass
• Daylighting
• Natural ventilation
• Passive heating
• Passive cooling
• Passive
ventilation
• Natural ventilation
INTEGRATED DESIGN PROCESS
Goal: Occupant & User Needs
– Mechanical System & Plant
– Passive Design Elements
– Microclimate Analysis
WHAT IS PARAMETRIC MODELLING?Run Description
Heating
kBtu / yr
Heating
kBtu / ft2 yr
Cooling
kBtu / yr
Cooling
kBtu / ft2 yr
Lighting
kBtu / yr
Lighting
kBtu / ft2 yr
Total kBtu /
yr
Total kBtu /
ft2 yr
Baseline Baseline 0 Baseline 156,621 25.78 17,609 2.90 33,168 5.46 207,398 34.14
Orientation41 Degrees Clockwise E4-1A 179,761 29.59 17,961 2.96 33,070 5.44 230,792 37.99
58 Degrees Clockwise E4-1B 161,237 26.54 18,014 2.97 33,144 5.46 212,396 34.96
Double EnvelopeDouble Envelope E5-1 252,410 41.55 81,909 13.48 19,160 3.15 353,480 58.19
Double Envelope With Controls E5-1A 232,632 38.29 18,590 3.06 19,160 3.15 270,383 44.51
Fenestration Area
Glazing Area 0% E6-1 126,836 20.88 1,549 0.25 41,130 6.77 169,515 27.90
Glazing Area 10% E6-1A 138,629 22.82 5,899 0.97 40,851 6.72 185,380 30.52
Glazing Area 20% E6-1B 147,823 24.33 12,101 1.99 40,276 6.63 200,200 32.95
Glazing Area 40% E6-1C 177,160 29.16 24,009 3.95 24,684 4.06 225,853 37.18
Glazing Area 50% E6-1D 191,495 31.52 32,496 5.35 20,712 3.41 244,704 40.28
Glazing Area 75% E6-1E 226,770 37.33 56,942 9.37 15,476 2.55 299,188 49.25
Glazing Area 100% E6-1F 260,609 42.90 83,970 13.82 15,456 2.54 360,035 59.27
Glazing Area 10% Centered E6-2A 138,977 22.88 4,870 0.80 35,598 5.86 179,445 29.54
Glazing Area 20% Centered E6-2B 151,664 24.97 9,367 1.54 29,515 4.86 190,546 31.37
Glazing Area 40% Centered E6-2C 165,084 27.17 15,620 2.57 24,657 4.06 205,361 33.80
Glazing Area 50% Centered E6-2D 178,356 29.36 23,469 3.86 21,707 3.57 223,532 36.80
Glazing Area 75% Centered E6-2E 191,891 31.59 32,382 5.33 19,541 3.22 243,813 40.13
U-Factor 0.30 E7-1A 144,038 23.71 19,650 3.23 33,167 5.46 196,855 32.40
Fenestration U-Value, SHGC & VT
U-Factor 0.30 E7-1A 144,038 23.71 19,650 3.23 33,167 5.46 196,855 32.40
U-Factor 0.25 E7-1A1 133,316 21.94 21,141 3.48 33,167 5.46 187,624 30.88
U-Factor 0.20 E7-1B 123,229 20.28 22,738 3.74 33,168 5.46 179,135 29.49
U-Factor 0.15 E7-1B1 112,130 18.46 24,752 4.07 33,167 5.46 170,050 27.99
U-Factor 0.10 E7-1C 101,876 16.77 26,897 4.43 33,168 5.46 161,941 26.66
SHGC 0.84 E7-4 122,230 20.12 74,492 12.26 33,168 5.46 229,890 37.84
SHGC 0.45 E7-4A 150,616 24.79 27,228 4.48 33,168 5.46 211,012 34.73
SHGC 0.40 E7-4A1 156,375 25.74 21,642 3.56 33,168 5.46 211,185 34.76
SHGC 0.30 E7-4B 167,382 27.55 13,410 2.21 33,168 5.46 213,960 35.22
SHGC 0.25 E7-4C 173,690 28.59 10,023 1.65 33,168 5.46 216,881 35.70
VT 0.61 E7-7A 162,695 26.78 16,822 2.77 30,535 5.03 210,053 34.58
VT 0.70 E7-7B 163,878 26.98 16,282 2.68 28,455 4.68 208,615 34.34
Solar Shading
Projection Factor 0.50 E8-1A 169,835 27.96 9,867 1.62 38,360 6.31 218,062 35.90
Projection Factor 1.00 E8-1B 176,562 29.06 6,912 1.14 39,783 6.55 223,257 36.75
Projection Factor 0.50 Slatted Horizontal E8-1C 168,426 27.72 11,101 1.83 38,340 6.31 217,867 35.86
Projection Factor 1.00 Slatted Horizontal E8-1D 175,458 28.88 7,954 1.31 40,005 6.59 223,417 36.78
Projection Factor 0.50 Slatted Vertical E8-1E 167,438 27.56 13,703 2.26 35,321 5.81 216,462 35.63
Projection Factor 1.00 Slatted Vertical E8-1F 171,991 28.31 11,456 1.89 36,698 6.04 220,145 36.24
Thermal Mass Constructions Heavyweight Inside E9-1A 154,636 25.45 9,528 1.57 33,168 5.46 197,331 32.48
Thermal InsulationU-Factor 0.043 E10-1A 155,176 25.54 18,293 3.01 33,168 5.46 206,637 34.01
U-Factor 0.036 E10-1B 151,640 24.96 18,669 3.07 33,168 5.46 203,477 33.49
Infiltration & Air Leakage
Infiltration 1.81 E11-1A 194,244 31.97 15,381 2.53 33,168 5.46 242,794 39.97
Infiltration 0.42 E11-1B 71,078 11.70 31,320 5.16 33,168 5.46 135,566 22.32
Infiltration 0.26 E11-1C 59,151 9.74 35,038 5.77 33,168 5.46 127,357 20.96
Infiltration 0.16 E11-1D 51,121 8.42 38,535 6.34 33,168 5.46 122,824 20.22
Infiltration 0 E11-1E 40,917 6.74 42,947 7.07 33,167 5.46 117,031 19.26
36
38
40
42
44
46
48
50
52
54
56
58
60
62
64
Passive Design Elements Total kBtu / ft2.yr
Lighting
WHAT IS PARAMETRIC MODELLING?
0
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
34
36
0 B
aselin
e
E4-1
A
E4-1
B
E5-1
E5-1
A
E6-1
E6-1
A
E6-1
B
E6-1
C
E6-1
D
E6-1
E
E6-1
F
E6-2
A
E6-2
B
E6-2
C
E6-2
D
E6-2
E
E7-1
A
E7-1
A1
E7-1
B
E7-1
B1
E7-1
C
E7-4
E7-4
A
E7-4
A1
E7-4
B
E7-4
C
E7-7
A
E7-7
B
E8-1
A
E8-1
B
E8-1
C
E8-1
D
E8-1
E
E8-1
F
E9-1
A
E10-1
A
E10-1
B
E11-1
A
E11-1
B
E11-1
C
E11-1
D
E11-1
E
Cooling
Heating
PROJECT EXAMPLES• City of Vancouver Passive Design Guide
PROJECT EXAMPLES
College of the Desert
Palm Springs,
California
Eifel Square
Budapest, Hungary
PROJECT EXAMPLES
PROJECT EXAMPLES
PROJECT EXAMPLES
PROJECT EXAMPLES
PROJECT EXAMPLES
RESULTS60
50
40
30
20
10Load (
kW
)
10
20
30
40
50
60
Gain
(kW
)
30
25
20
15
10
5
Tem
pera
ture
(°C
)
1000
900
800
700
600
500
Volu
me flo
w (l/s
)
00:00 06:00 12:00 18:00 00:00
10
0
-10
-20
-30
Load (
kW
)
-30
-20
-10
0
10
Gain
(kW
)5
0
-5
-10
-15
Tem
pera
ture
(°C
)
400
300
200
100
0
Volu
me flo
w (l/s
)
Date: Wed 14/Apr
Cooling plant sensible load: L3: OPEN PLAN OFFICE: B308 SE (proposed.aps)
Aux vent gain: L3: OPEN PLAN OFFICE: B308 SE (proposed.aps)
Dry-bulb temperature: (GrazIWEC.fwt)
Auxiliary vent: L3: OPEN PLAN OFFICE: B308 SE (proposed.aps)
