A Comparative Discussion
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1 A Comparative Discussion Using Radiance, DAYSIM and Physical Models in Architectural Practice 8 th International Radiance Workshop, Harvard GSD 2009_10_22 Presented by: Kevin Van Den Wymelenberg, University of Idaho, Integrated Design Lab - Boise Thanks to: Northwest Energy Efficiency Alliance IDL Staff Ery Djunaedy PhD, Gunnar Gladics, Nick Hubof and Tim Hedrick Special thanks: Mehlika Inanici, PhD
2 Integrated Design Lab Network Seattle University of Washington Portland University of Oregon Boise University of Idaho Bozeman Montana State University Spokane Washington State University 108 N 6TH STREET BOISE, ID PH FX
3 INTEGRATED DAYLIGHTING TOOLS DESIGN LAB
4 INTEGRATED HELIODON DESIGN LAB Design Analysis
5 No Shading - 12 PM With Shading - 12 PM June September INTEGRATED PHYSICAL MODELING DESIGN HELIODON LAB December
6 Li-Cor 210 sa Easy HDRs INTEGRATED OVERCAST SKYBOX DESIGN LAB Design Analysis
7 RAINIER VISTA BOYS & GIRLS CLUB- Seattle, WA (IDL- Puget Sound) DF% INTEGRATED DESIGN LAB Baseline: No skylights PHYSICAL MODELING OVERCAST SKYBOX Weinstein AIU
8 RAINIER VISTA BOYS & GIRLS CLUB- Seattle, WA (IDL- Puget Sound) DF% INTEGRATED DESIGN LAB Modification 1: Two skylights- One in stairwell PHYSICAL MODELING OVERCAST SKYBOX Weinstein AIU
9 RAINIER VISTA BOYS & GIRLS CLUB- Seattle, WA (IDL- Puget Sound) DF% INTEGRATED DESIGN LAB Modification 2: Two skylights- Both in Learning Center PHYSICAL MODELING OVERCAST SKYBOX Weinstein AIU
10 RAINIER VISTA BOYS & GIRLS CLUB- Seattle, WA (IDL- Puget Sound) DF% INTEGRATED DESIGN LAB Modification 3: Three skylights- Two in Learning Center and one in stairwell PHYSICAL MODELING OVERCAST SKYBOX Weinstein AIU
11 RAINIER VISTA BOYS & GIRLS CLUB- Seattle, WA (IDL- Puget Sound) DF% INTEGRATED DESIGN LAB Modification 4: One skylight- Elongated rectangle PHYSICAL MODELING OVERCAST SKYBOX Weinstein AIU
12 RAINIER VISTA BOYS & GIRLS CLUB- Seattle, WA (IDL- Puget Sound) DF% INTEGRATED DESIGN LAB Modification 5: Two skylights- Large squares PHYSICAL MODELING OVERCAST SKYBOX Weinstein AIU
13 RAINIER VISTA BOYS & GIRLS CLUB- Seattle, WA (IDL- Puget Sound) DF% INTEGRATED DESIGN LAB Modification 6: Two skylights- Large 6 x 16 rectangle and skylight at stairwell PHYSICAL MODELING OVERCAST SKYBOX Weinstein AIU
14 North Mall Office Building Salem, OR YGH, Portland, Boise 2001 TESTS PHYSICAL MODELING ~ Confidence
15 Garden City Head Start - Boise, ID McKibben & Cooper Architects, Boise 2002 TESTS PHYSICAL MODELING ~ Confidence
16 Federal Way Youth Development Center Weinstein AIU 2003 TESTS PHYSICAL MODELING ~ Confidence
17 Federal Way Youth Development Center Weinstein AIU 2003 TESTS PHYSICAL MODELING ~ Confidence
18 CSI Recreation Twin Falls, ID CTA Group, Boise 2004 TESTS Overcast Sky Simulator
19 Tumble Time Gymnasium - Boise, ID Cole + Poe Architects, Boise 2004 TESTS PHYSICAL MODELING ~ Confidence
20 DIGITAL INTEGRATED SUITE DESIGN LAB ANALYSIS 2006 Ecotect Radiance Daysim HDR Photography
21 INTEGRATED DESIGN LAB
22 HDR Rendering Luminance False Color: cd/m2 INTEGRATED DIGITAL MODELING DESIGN LAB Baseline: Banner Bank configuration Workplane Illumination (lux)
23 HDR Rendering Luminance False Color: cd/m2 INTEGRATED DIGITAL MODELING DESIGN LAB Improved Glazing (SB70xlsp/SP) Workplane Illumination (lux)
24 HDR Rendering Luminance False Color: cd/m2 INTEGRATED DIGITAL MODELING DESIGN LAB 3 Inverted Louver Blinds Workplane Illumination (lux)
25 HDR Rendering Luminance False Color: cd/m2 INTEGRATED DIGITAL MODELING DESIGN LAB Triple Pane Glazing (SP/70xl/SP) Workplane Illumination (lux)
26 HDR Rendering Luminance False Color: cd/m2 INTEGRATED DIGITAL MODELING DESIGN LAB Light Brown Modular Walls Workplane Illumination (lux)
27 DA 300 lx HDR Rendering INTEGRATED DIGITAL MODELING DESIGN LAB Baseline- Perimeter Hard Wall Offices Luminance False Color: cd/m2 Daylight Autonomy- % of time above 300 lux
28 DA 300 lx HDR Rendering INTEGRATED DIGITAL MODELING DESIGN LAB Perimeter Open Office Plan Luminance False Color: cd/m2 Daylight Autonomy- % of time above 300 lux
29 DA 300 lx HDR Rendering INTEGRATED DIGITAL MODELING DESIGN LAB Seventh Floor Skylights Luminance False Color: cd/m2 Daylight Autonomy- % of time above 300 lux
30 INTEGRATED HYBRID DIGITAL/PHYSICAL DESIGN LAB ANALYSIS
31 VOCATIONAL EDUCATION BUILDING DAYLIGHTING STUDIES FOR: CTA Group- Boise, ID 108 N 6TH STREET BOISE, ID PH FX
32 INTEGRATED DESIGN LAB This project includes analysis of two large open spaces for vocational education. The space too the North has an approximately 35 ceiling height allowing for specialty equipment. Dissecting the two spaces is a hallway leading from the classroom portion on the West end with access to the large spaces along its length and terminating at the East entrance. The south space is composed of an open auto shop through the center and a spray shop at the East end. The roof is articulated in a cascading fashion from high in the north to low in the south to allow for clerestory lighting.
33 VOCATIONAL EDUCATION BUILDING V. 1 DIGITAL MODEL ANALYSIS V.2 DIGITAL MODEL ANALYSIS V.3 DIGTIAL MODEL ANALYSIS V.1 PHYSICAL MODEL ANALYSIS V.4 DIGITAL MODEL ANALYSIS V.2 PHYSICAL MODEL ANALYSIS INTEGRATED DESIGN LAB
34 VOCATIONAL EDUCATION BUILDING V. 1 DIGITAL MODEL ANALYSIS V.2 DIGITAL MODEL ANALYSIS V.3 DIGTIAL MODEL ANALYSIS V.1 PHYSICAL MODEL ANALYSIS V.4 DIGITAL MODEL ANALYSIS V.2 PHYSICAL MODEL ANALYSIS INTEGRATED DESIGN LAB
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40 300 lx < 80% time 300 lx < 20% time > 2000 lx DA UDI
41 VOCATIONAL EDUCATION BUILDING V. 1 DIGITAL MODEL ANALYSIS V.2 DIGITAL MODEL ANALYSIS V.3 DIGTIAL MODEL ANALYSIS V.1 PHYSICAL MODEL ANALYSIS V.4 DIGITAL MODEL ANALYSIS V.2 PHYSICAL MODEL ANALYSIS INTEGRATED DESIGN LAB
42 INTEGRATED DESIGN LAB
43 INTEGRATED DESIGN LAB
44 INTEGRATED DESIGN LAB
45 INTEGRATED DESIGN LAB
46 INTEGRATED DESIGN LAB
47 INTEGRATED DESIGN LAB
48 INTEGRATED DESIGN LAB
49 INTEGRATED DESIGN LAB
50 INTEGRATED DESIGN LAB
51 INTEGRATED DESIGN LAB
52 INTEGRATED CALIBRATING EXPECTATIONS DESIGN LAB
53 CAES Idaho Falls, ID GSBS Architects, Salt Lake
54 VOCATIONAL EDUCATION BUILDING V. 1 DIGITAL MODEL ANALYSIS V.2 DIGITAL MODEL ANALYSIS V.3 DIGTIAL MODEL ANALYSIS V.1 PHYSICAL MODEL ANALYSIS V.4 DIGITAL MODEL ANALYSIS V.2 PHYSICAL MODEL ANALYSIS INTEGRATED DESIGN LAB
55 INTEGRATED DESIGN LAB
56 INTEGRATED DESIGN LAB
57 INTEGRATED DESIGN LAB
58 INTEGRATED DESIGN LAB
59 INTEGRATED DESIGN LAB
60 INTEGRATED DESIGN LAB
61 INTEGRATED DESIGN LAB
62 INTEGRATED DESIGN LAB
63 INTEGRATED DESIGN MOD 4 LAB
64 INTEGRATED DESIGN LAB
65 INTEGRATED DESIGN LAB
66 INTEGRATED DESIGN LAB
67 INTEGRATED DESIGN LAB
68 INTEGRATED DESIGN LAB
69 INTEGRATED DESIGN LAB
70 INTEGRATED DESIGN LAB
71 INTEGRATED DESIGN LAB
72 INTEGRATED DESIGN LAB
73 INTEGRATED DESIGN LAB
74 MOD 8 INTEGRATED DESIGN LAB
75 INTEGRATED DESIGN LAB
76 Comparisons from Architects' Perspective! general appearance? of images! type of data available! usefulness of data to inform design decisions! closing the loop! time investment INTEGRATED DESIGN LAB MODELING COMPARISIONS * * Not a validation exercise
77 ? INTEGRATED MODELING COMPARISIONS DESIGN LAB -! Detailed Single Case -! Detailed - Iterative -! Simple Single Case -! Simple Iterative (Vocational Education Building CTA Group) (Airport Terminal HDR Inc.)
78 ? INTEGRATED MODELING COMPARISIONS DESIGN LAB -! Detailed Single Case -! Detailed - Iterative -! Simple Single Case -! Simple Iterative (Vocational Education Building CTA Group) (Airport Terminal HDR Inc.)
79 Physical Model Digital Model INTEGRATED DAYLIGHT FACTOR DESIGN LAB Several key factors are to be considered when comparing these two models. Only half of the physical model was actually constructed with the rest being represented by a mirror placed at midpoint, this mirroring is helpful in keeping the model to a manageable size, but reduced accuracy somewhat. The physical model also has no glass built in and must account for the specific VLT of the glass with a universal reduction factor in Excel after data collection.
80 Physical Model Digital Model INTEGRATED WINDSHOP DESIGN LAB September 21 st Overcast
81 Physical Model Digital Model INTEGRATED WINDSHOP DESIGN LAB September 21 st Sunny 12:00pm
82 Physical Model Digital Model INTEGRATED AUTOSHOP DESIGN LAB September 21 st Overcast
83 Physical Model Digital Model INTEGRATED AUTOSHOP DESIGN LAB September 21 st Sunny 12:00pm
84 Simple Tone Mapping Exercise HDR Shop Artizen Photoshop RAD Display INTEGRATED Photomatix DESIGN Radiance Image Viewer LAB Easy HDR HDR Shop (Reinhard Tone Mapping) Photosphere (MAC) Preview (MAC) manual HDR
85 Most designers do not understand luminance
86 and depending drastically different conclusions. INTEGRATED DESIGN LAB Preview (MAC) manual HDR
87 PHYSICAL MODEL CONSTRUCTION Building a complex physical model may take several days to a week to complete. Modeling construction may need to account for iterative testing and the ability to modify the model for different analysis. This model had adjustable clerestory positions, window sizing and baffle location and type Hr. DATA COLLECTION / ANALYSIS Time in this process is driven by the amount and difficulty of modification being tested. In this project 14 physical iterations were tested during analysis. 48 Hr. DOCUMENATATION/REPORTING Displaying data in a meaningful and simple manner is essential Hr Hr. Total for 14 iterations ~ hours each DIGITAL MODEL CONSTRUCTION A complex digital model may be imported from other software platforms into Ecotect or directly to Radiance, however more this often requires significant remodeling. Extreme detail is possible but increased vertices results in increased processing time Hr. DATA COLLECTION / ANALYSIS This analysis included Daysim and Radiance runs but excludes computer processing time entirely. 18 digital iterations were tested during analysis. 56 Hr. DOCUMENATATION/REPORTING Displaying data in a meaningful and simple manner is essential. 58 Hr Hr. Total for 18 iterations ~ hours each (Plus computer processing time) INTEGRATED MODELING DESIGN LAB Detailed Iterative Depending on the project and level of design resolution a highly detailed model can be created and simulated with both digital and physical tools.
88 PHYSICAL MODEL CONSTRUCTION 50 Hr. DATA COLLECTION / ANALYSIS 14 Hr. DOCUMENATATION/REPORTING 2.5 Hr Hr. Total DIGITAL MODEL CONSTRUCTION 26 Hr. DATA COLLECTION / ANALYSIS 31.5 Hr.! 26.5 Hr. Radiance! 5 Hr. DAYSIM DOCUMENATATION/REPORTING 4.5 Hr. 62 Hr. Total INTEGRATED MODELING DESIGN LAB Detailed Single Case Depending on the project and level of design resolution a highly detailed model can be created and simulated with both digital and physical tools.
89 ? INTEGRATED MODELING COMPARISIONS DESIGN LAB -! Detailed Single Case -! Detailed - Iterative -! Simple Single Case -! Simple Iterative (Vocational Education Building CTA Group) (Airport Terminal HDR Inc.)
90 INTEGRATED DESIGN LAB AIRPORT TERMINAL Simple Iterative HDR Inc. Boise Office
91 Physical Model Digital Model INTEGRATED TERMINAL DESIGN LAB September 21 st Overcast 12PM 9 skylights
92 Physical Model Digital Model INTEGRATED TERMINAL DESIGN LAB September 21 st Overcast 12PM 9 skylights
93 Physical Model Digital Model INTEGRATED TERMINAL DESIGN LAB September 21 st Overcast 12PM 6 skylights
94 Physical Model Digital Model INTEGRATED TERMINAL DESIGN LAB September 21 st Overcast 12PM 6 skylights
95 PHYSICAL MODEL CONSTRUCTION Simple physical models can be constructed in a single day can be modified on the fly during data collection and analysis phases. These models need only represent a scaled space and the requisite surfaces at a reflectance similar to those planned for the building 38 Hr. DATA COLLECTION / ANALYSIS Time in this process is driven by the amount and difficulty of modification being tested. In this project 4 physical iterations were tested during analysis Hr. DOCUMENATATION/REPORTING Displaying data in a meaningful and simple manner is essential Hr. 74 Hr. Total for 4 iterations ~ 18.5 hours each DIGITAL MODEL CONSTRUCTION Creation of simple digital models from geometry inputs from other software can some times mean re-modeling, However if speed is more concerning than quality and accuracy, ie. at the initial design phase, it is possible to work directly from an imported model or even to work directly out of a modeling program such as SketchUp Hr. DATA COLLECTION / ANALYSIS This value excludes computer processing time entirely. 4 digital iterations were tested during analysis Hr. DOCUMENATATION/REPORTING Displaying data in a meaningful and simple manner is essential Hr Hr. Total for 4 iterations ~ hours each INTEGRATED MODELING DESIGN LAB Simple Iterative Depending on the project and level of design resolution a highly detailed model can be created and simulated with both the digital and physical tools
96 PHYSICAL MODEL CONSTRUCTION 26 Hr. DATA COLLECTION / ANALYSIS 14 Hr. DOCUMENATATION/REPORTING 5.5 Hr Hr. Total DIGITAL MODEL CONSTRUCTION 9 Hr. DATA COLLECTION / ANALYSIS 10 Hr. DOCUMENATATION/REPORTING 6.5 Hr Hr. Total INTEGRATED MODELING DESIGN LAB Simple Single Case Depending on the project and level of design resolution a highly detailed model can be created and simulated with both the digital and physical tools
97 Overall Time Investment Comparison %#!".<+=:180,5<8">"?1;<458/" A<21-"9<8)04=+5<8" $#!" $!!" INTEGRATED DESIGN LAB #!" hours!" &'()*+,-".*/*0,-" &'()*+,-".*/*0,-" &'()*+,-".*/*0,-" &'()*+,-".*/*0,-".10,*-12"3014,561".10,*-12"7*8/-1"9,)1" 7*:;-1"3014,561" 7*:;-1"7*8/-1"9,)1"
98 Physical Digital For Designer s Real time Eye adaptation Approximate sky Real sky Slower to build Quicker to test Intuitive Expensive equipment Physical materials Processing time Tone Mapping More accurate sky files Real sky (potential) Quicker to build Slower to test High expertise Freeware Complex material specs! Commit to test daylight design ideas! Iterative analysis, not compliance! Interpret data systematically & critically! Follow up, close the loop INTEGRATED Conclusions DESIGN LAB
99 A Comparative Discussion Using Radiance, DAYSIM and Physical Models in Architectural Practice 8 th International Radiance Workshop, Harvard GSD 2009_10_22 Presented by: Kevin Van Den Wymelenberg, University of Idaho, Integrated Design Lab - Boise Thanks to: Northwest Energy Efficiency Alliance IDL Staff Ery Djunaedy PhD, Gunnar Gladics, Nick Hubof and Tim Hedrick Special thanks: Mehlika Inanici, PhD
BUILDING DAYLIGHTING MODELS
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