Master's Thesis_ClimaDesign 2017

Visual Comfort Analysis of Adaptive Solar Façade A case study of House of Natural Resources at ETH Zurich

Chair of Building Technology and Climate Responsive Design Prof. Dipl.-Ing. Thomas Auer

Daksh Talwar I Master’s Thesis 2017

Chair of Building Technology and Climate Responsive Design Prof. Dipl.-Ing.Thomas Auer

Technical University of Munich

Introduction - Motivation - State of Research - Adaptive Solar Facade Objectives Methodology Case Study - Simulation Cases - Opt. angle configuration Results/Discussion - Daylight Analysis - Glare Analysis - Visual Analysis Improvement Conclusion Future Consideration Daksh Talwar I Master’s Thesis 2017

Source - Nagy, Zoltan, et al. "The Adaptive Solar Facade: From concept to prototypes (2016).

Chair of Building Technology and Climate Responsive Design Prof. Dipl.-Ing.Thomas Auer

Technical University of Munich

Introduction Integrating PV modules into a dynamic

- Motivation

shading system offers: 

- State of Research

the possibility to control the direct

- Adaptive Solar Facade

and indirect radiation into the

Objectives

building. 

Methodology reduction in heating/cooling loads, and

improve

the

Case Study

daylight

- Simulation Cases

distribution.

- Opt. angle configuration Results/Discussion

Adaptive Solar Façade is one such innovation,

which

has

- Daylight Analysis

tremendous

potential to reduce the energy demand

- Glare Analysis

of the building while enhancing its

- Visual Analysis

indoor environment quality.

Improvement Conclusion Future Consideration

10/26/2017

Daksh Talwar I Master’s Thesis 2017

Source - Nagy, Zoltan, et al. "The Adaptive Solar Facade: From concept to prototypes (2016).

Chair of Building Technology and Climate Responsive Design Prof. Dipl.-Ing.Thomas Auer

Technical University of Munich

Introduction To develop a multi-domain modeling framework to evaluate dynamic photovoltaic shading systems in terms of architectural, structural, and energy performance criteria.

- Motivation - State of Research - Adaptive Solar Facade Objectives Methodology Case Study - Simulation Cases - Opt. angle configuration Results/Discussion - Daylight Analysis - Glare Analysis - Visual Analysis Improvement Conclusion Future Consideration

Daksh Talwar I Master’s Thesis 2017

Source - Nagy, Zoltan, et al. "The Adaptive Solar Facade: From concept to prototypes (2016).

Chair of Building Technology and Climate Responsive Design Prof. Dipl.-Ing.Thomas Auer

Technical University of Munich

Introduction 

Developed within the A/S group at

- Motivation

ETH Zurich.



- State of Research

A lightweight PV shading system

- Adaptive Solar Facade

composed of Copper Indium Gallium

Objectives

Selenide (CIGS) panels. 

Methodology Ability

to

adapt

condition

with

its

adaptive

shading

different

weather

combination and

Case Study

of

- Simulation Cases

electricity

- Opt. angle configuration

generation. 



Results/Discussion

The orientation can be controlled individually or in clusters using

- Daylight Analysis

pneumatic actuators.

- Glare Analysis

No changes are required in the

- Visual Analysis

original façade for installing the ASF.

Improvement Conclusion Future Consideration Daksh Talwar I Master’s Thesis 2017

Source - Nagy, Zoltan, et al. "The Adaptive Solar Facade: From concept to prototypes (2016).

Chair of Building Technology and Climate Responsive Design Prof. Dipl.-Ing.Thomas Auer

Technical University of Munich

Introduction 

Evolving a simulation framework for the further expansion in terms of visual comfort.

- Motivation



Conducting a case study for the adaptive shading facade to evaluate visual comfort conditions

- State of Research

according to the existing specifications. 

- Adaptive Solar Facade

Further conducting simulations with change of parameters (propose cases) to improve the visual comfort conditions.



Objectives Methodology

Formulate future design considerations based on the results.

Case Study - Simulation Cases - Opt. angle configuration

DAYLIGHT

Results/Discussion - Daylight Analysis

GLARE

- Glare Analysis VIEW

VISUAL COMFORT

- Visual Analysis Improvement Conclusion Future Consideration

Daksh Talwar I Master’s Thesis 2017

Source – Self-produced

Chair of Building Technology and Climate Responsive Design Prof. Dipl.-Ing.Thomas Auer

Technical University of Munich

Introduction 

First stage - Simulation model is build

- Motivation

Initialization

using Rhino/grasshopper. 

Second stage - Executing the visual comfort analysis, which is divided into 3 stages that includes daylight, glare and view analysis.



Lastly,

the

data

obtained

from

- State of Research

- Building Data

- Adaptive Solar Facade

- Façade Geometry

Objectives

- Orientation

Methodology

- Material properties

Case Study

Visual Analysis

simulations is plotted to MATLAB to illustrate

- Weather Data

- Simulation Cases - Opt. angle configuration

the results in graphical

Results/Discussion

order.

Glare

Daylight Honeybee

DIVA

View LEED CI Spreadsheet

- Daylight Analysis - Glare Analysis - Visual Analysis

Results

Improvement

MATLAB Graphical Output Daksh Talwar I Master’s Thesis 2017

Conclusion Future Consideration Source – Self-produced

Chair of Building Technology and Climate Responsive Design Prof. Dipl.-Ing.Thomas Auer

Technical University of Munich

Introduction

The ASF modules on the façade at the House of Natural Resources.

- Motivation - State of Research - Adaptive Solar Facade Objectives Methodology Case Study - Simulation Cases - Opt. angle configuration Results/Discussion - Daylight Analysis - Glare Analysis - Visual Analysis Improvement Conclusion Future Consideration

Daksh Talwar I Master’s Thesis 2017

Source - Nagy, Zoltan, et al. "The Adaptive Solar Facade: From concept to prototypes (2016).

Chair of Building Technology and Climate Responsive Design Prof. Dipl.-Ing.Thomas Auer

Technical University of Munich

Introduction 

Simulation model is build according to

- Motivation Office Zone Parameters

- State of Research

parameter.

Office Envelope



Simulations performed at hourly time

Width - 4.9m Height - 3.1m

steps for each month according to

Daylight analysis - The grid is taken at a height of 0.75m from the finish floor

Methodology Glazing specification

VT - 0.68

Material reflections

Back plate of PV modules - 0.35

Case Study - Simulation Cases Walls, ceiling and floor - 0.75

level. 

Furniture – 0.35

Glare analysis - Simulations are ran at the task desk with the fish eye lens.

Objectives

Depth - 7m

the optimum angle configurations. 

- Adaptive Solar Facade

- Opt. angle configuration Results/Discussion

Occupancy

Weekdays working hours 9am - 18pm

Location

Zurich, Switzerland

Weather File

Zurich-Kloten, Switzerland 2013

Orientation

South

- Daylight Analysis - Glare Analysis - Visual Analysis Improvement Conclusion Future Consideration

Daksh Talwar I Master’s Thesis 2017

Source – Self-produced

Chair of Building Technology and Climate Responsive Design Prof. Dipl.-Ing.Thomas Auer

Technical University of Munich

Introduction



Details the parameters for all the cases.

Cases

- Motivation

VT

Reflection from the back of

(%)

modules plate (%)

Base Case

68

Proposed case 1

Surface reflectance

- State of Research - Adaptive Solar Facade

Ceiling

Wall

Floor

Furniture

35

0.6

0.7

0.25

0.35

68

50

0.6

0.7

0.25

0.35

Proposed case 2

52

50

0.6

0.7

0.25

0.35

Methodology

Proposed case 3

52

35

0.6

0.7

0.25

0.35

Case Study

Objectives

- Simulation Cases 

Altitude angles : 0 degree (closed) to

- Angle configuration

90 degree open position in steps of

Results/Discussion

15 degree. 

- Daylight Analysis

Azimuth angles : -45 degree (south-

- Glare Analysis

east) to + 45 degree (south-west)

- Visual Analysis

direction with 15 degree steps. 

Improvement

49 dynamic configurations.

Conclusion Future Consideration Daksh Talwar I Master’s Thesis 2017

Source – Self-produced.

Nagy, Zoltan, et al. "The Adaptive Solar Facade: From concept to prototypes (2016).

Chair of Building Technology and Climate Responsive Design Prof. Dipl.-Ing.Thomas Auer

Technical University of Munich

Introduction 

Heat-maps visualizing the optimal

- Motivation

angles to minimize the net energy demand

including

PV

- State of Research

electricity

- Adaptive Solar Facade

production. 

Objectives Azimuth angle of -45 degree stands Methodology

for south-west facing panels and +45

Case Study

degree south-east facing panels. 

- Simulation Cases

Altitude angle of 0 degree stands for

- Opt. angle configuration

closed panels and 90 degree for open

Results/Discussion

panels. 

The optimal angle configurations

- Daylight Analysis

for altitude and azimuth direction is

- Glare Analysis

used for all the simulations in this

- Visual Analysis

study.

Improvement Conclusion Future Consideration Daksh Talwar I Master’s Thesis 2017

Source - Nagy, Zoltan, et al. "The Adaptive Solar Facade: From concept to prototypes (2016).

Chair of Building Technology and Climate Responsive Design Prof. Dipl.-Ing.Thomas Auer

Technical University of Munich

Introduction



More than 300 lux in each occupied

Cases

VT

Base Case

68

- Motivation

Surface reflectance

modules plate (%)

(%)

hours throughout the year. 

Reflection from the back of Ceiling

Wall

Floor

Furniture

0.6

0.7

0.25

0.35

35

Except the month of November

- Adaptive Solar Facade

where only 14% of the occupied

Objectives

hours receives daylight between 300

Methodology

to 500 lux. 

Case Study

This is mostly due to the ASF angle

configuration

- State of Research

during

- Simulation Cases

winters

- Opt. angle configuration

when the altitude angle is at 15 Results/Discussion

degree (partially close) that blocks

- Daylight Analysis

the solar penetration into the room.

- Glare Analysis - Visual Analysis Scale

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

(%)

(%)

(%)

(%)

(%)

(%)

(%)

(%)

(%)

(%)

(%)

(%)

300<=lux<=500

25

12.5

0

0

0

0

0

0

0

12.5

14

14

lux>=500

75

87.5

100

100

100

100

100

100

100

87.5

0

71.5

Daksh Talwar I Master’s Thesis 2017

Improvement Conclusion Future Consideration Source – Self-produced

Chair of Building Technology and Climate Responsive Design Prof. Dipl.-Ing.Thomas Auer

Technical University of Munich

Introduction 

An increase in lux level for each

Cases

VT

working hour compared to the base

Reflection from the back of modules plate (%)

(%) Proposed case 1

68

- Motivation

Surface reflectance Ceiling

Wall

Floor

Furniture

0.6

0.7

0.25

0.35

50

case scenario. 

- State of Research - Adaptive Solar Facade

Improvement is seen in the month of

Objectives

November where the availability of Methodology

the lux increased to 28.5% from

Case Study

14% in the previous case.

- Simulation Cases - Opt. angle configuration Results/Discussion - Daylight Analysis - Glare Analysis - Visual Analysis Scale

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

(%)

(%)

(%)

(%)

(%)

(%)

(%)

(%)

(%)

(%)

(%)

(%)

300<=lux<=500

14

0

0

0

10

0

0

0

0

12.5

28.5

14

lux>=500

86

100

100

100

90

100

100

100

100

87.5

0

71.5

Daksh Talwar I Master’s Thesis 2017

Improvement Conclusion Future Consideration Source – Self-produced

Chair of Building Technology and Climate Responsive Design Prof. Dipl.-Ing.Thomas Auer

Technical University of Munich

Introduction 

A low lux level is observed than the

Cases

VT

earlier cases.

52

- Motivation

Surface reflectance

modules plate (%)

(%) Proposed case 2



Reflection from the back of Ceiling

Wall

Floor

Furniture

0.6

0.7

0.25

0.35

50

Above 300 lux for 100% occupied

- Adaptive Solar Facade

hours from January to October. 

- State of Research

Objectives

In the month of December, lux

Methodology

availability decreased to 71.5% for Case Study

occupied hours.

- Simulation Cases - Opt. angle configuration Results/Discussion - Daylight Analysis - Glare Analysis - Visual Analysis Scale

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

(%)

(%)

(%)

(%)

(%)

(%)

(%)

(%)

(%)

(%)

(%)

(%)

300<=lux<=500

25

25

0

22.2

10

10

0

0

11

12.5

14

0

lux>=500

75

75

100

77.8

80

90

100

100

89

87.5

0

71.5

Daksh Talwar I Master’s Thesis 2017

Improvement Conclusion Future Consideration Source – Self-produced

Chair of Building Technology and Climate Responsive Design Prof. Dipl.-Ing.Thomas Auer

Technical University of Munich

Introduction



Almost the similar result to the last

Cases

VT

case.

52

- Motivation

Surface reflectance

modules plate (%)

(%) Proposed case 3



Reflection from the back of Ceiling

Wall

Floor

Furniture

0.6

0.7

0.25

0.35

35

These parameters makes the worst

- State of Research - Adaptive Solar Facade

availability of the lux into the room

Objectives

than all the cases. 

Methodology In the month of November no useful Case Study

lux level is received on the working desk hence one have to use artificial

- Simulation Cases

light during the working hours.

- Opt. angle configuration Results/Discussion - Daylight Analysis - Glare Analysis - Visual Analysis Scale

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

(%)

(%)

(%)

(%)

(%)

(%)

(%)

(%)

(%)

(%)

(%)

(%)

300<=lux<=500

25

50

0

22

10

10

0

10

11

12.5

0

0

lux>=500

75

50

100

78

90

90

100

90

89

87.5

0

71.5

Daksh Talwar I Master’s Thesis 2017

Improvement Conclusion Future Consideration Source – Self-produced

Chair of Building Technology and Climate Responsive Design Prof. Dipl.-Ing.Thomas Auer

Technical University of Munich

Introduction 

During the summer months, the lux availability

- Motivation

85%

is commendable due to the open positioning

- State of Research

5.75%

86.25%

of the modules for providing shading from

Proposed case 2

11%

79%

the high sun position hence cutting down

Proposed case 3

12.5%

76.75%

the direct solar radiation and inviting

Cases

300<=lux<=500

lux>=500

Base case

6.5%

Proposed case 1

diffuse daylight into the space in each 

300 lux achieved throughout the year.



Except in the month of November due to the

summer month. 

Proposed case-1 is the most efficient in all the

- Adaptive Solar Facade Objectives Methodology Case Study - Simulation Cases - Opt. angle configuration

following Angle configuration :

cases as it improves the daylight availability

Altitude angle of 15 degree to maximum 30

also in the month of November when the

degree (partially close).

modules are closed with the increased back

- Daylight Analysis

Azimuth angles moving from a south-east

plate reflection.

- Glare Analysis

Other cases also achieved 90% daylight

- Visual Analysis

facing (30 degree) to a south-west facing

(-30 degree) direction.



availability of the lux level more than 300 lux

Results/Discussion

Improvement

annually.

Conclusion Future Consideration Daksh Talwar I Master’s Thesis 2017

Source – Self-produced

Chair of Building Technology and Climate Responsive Design Prof. Dipl.-Ing.Thomas Auer

Technical University of Munich

Introduction 

In January at 14:00pm and in

Cases

VT

October between 13:00pm to

Reflection from the back of modules plate (%)

(%) Base Case

68

- Motivation

Surface reflectance Ceiling

Wall

Floor

Furniture

0.6

0.7

0.25

0.35

35

14:00pm it drastically increased to

- State of Research - Adaptive Solar Facade

intolerable glare. 

Objectives In March glare probability reached Methodology

to intolerable and disturbing

Case Study

level at few hours throughout the



month.

- Simulation Cases

In September, intolerable glare

- Opt. angle configuration Results/Discussion

can be observed at 14:00pm.

- Daylight Analysis - Glare Analysis DGP scale

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

(%)

(%)

(%)

(%)

(%)

(%)

(%)

(%)

(%)

(%)

(%)

(%)

Imperceptible

87.5

100

66.5

100

100

60

60

50

55.5

62.5

100

100

Perceptible

0

0

0

0

0

30

40

50

33.5

12.5

0

0

Disturbing

0

0

22

0

0

10

0

0

0

0

0

0

Intolerable

12.5

0

11.5

0

0

0

0

0

11

25

0

0

Daksh Talwar I Master’s Thesis 2017

- Visual Analysis Improvement Conclusion Future Consideration Source – Self-produced

Chair of Building Technology and Climate Responsive Design Prof. Dipl.-Ing.Thomas Auer

Technical University of Munich

Introduction 

The illuminance level inside the

Cases

VT

room is increased which resulted

Reflection from the back of modules plate (%)

(%) Proposed case 1

68

- Motivation

Surface reflectance Ceiling

Wall

Floor

Furniture

0.6

0.7

0.25

0.35

50

in a negligible increase in glare

- State of Research - Adaptive Solar Facade

probability than the base case Objectives

scenario. 

Methodology

Nearly 1% increase of glare

Case Study

probability can be observed. 

- Simulation Cases

Similar results as the base case.

- Opt. angle configuration Results/Discussion - Daylight Analysis - Glare Analysis DGP scale

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

(%)

(%)

(%)

(%)

(%)

(%)

(%)

(%)

(%)

(%)

(%)

(%)

Imperceptible

87.5

100

66.5

100

100

60

60

30

55.5

62.5

100

100

Perceptible

0

0

0

0

0

20

20

60

22.5

12.5

0

0

Disturbing

0

0

11.5

0

0

20

20

10

11

0

0

0

Intolerable

12.5

0

22

0

0

0

0

0

11

25

0

0

Daksh Talwar I Master’s Thesis 2017

- Visual Analysis Improvement Conclusion Future Consideration Source – Self-produced

Chair of Building Technology and Climate Responsive Design Prof. Dipl.-Ing.Thomas Auer

Technical University of Munich

Introduction 

A drastic decrease in the glare

Cases

VT

probability is observed.

This

improved

summer

month

modules plate (%)

(%) Proposed case 2



Reflection from the back of

almost

every

by

inviting

52

- Motivation

Surface reflectance Ceiling

Wall

Floor

Furniture

0.6

0.7

0.25

0.35

50

- State of Research - Adaptive Solar Facade Objectives

imperceptible glare into the room. 

Methodology Improvement in the winter months Case Study

can be seen as the intolerable glare

- Simulation Cases

decreased to some extent in the

- Opt. angle configuration

uncomfortable working hours of the

Results/Discussion

months.

- Daylight Analysis - Glare Analysis DGP scale

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

(%)

(%)

(%)

(%)

(%)

(%)

(%)

(%)

(%)

(%)

(%)

(%)

Imperceptible

87.5

100

67

100

100

100

100

100

89

75

100

100

Perceptible

0

0

11

0

0

0

0

0

0

0

0

0

Disturbing

0

0

11

0

0

0

0

0

11

0

0

0

Intolerable

12.5

0

11

0

0

0

0

0

0

25

0

0

Daksh Talwar I Master’s Thesis 2017

- Visual Analysis Improvement Conclusion Future Consideration Source – Self-produced

Chair of Building Technology and Climate Responsive Design Prof. Dipl.-Ing.Thomas Auer

Technical University of Munich

Introduction



Almost 1-2% less glare probability

Cases

VT

into the room for every working hour.

modules plate (%)

(%) Proposed case 3



Reflection from the back of

52

- Motivation

Surface reflectance Ceiling

Wall

Floor

Furniture

0.6

0.7

0.25

0.35

35

At the end, the average percentage of

- State of Research - Adaptive Solar Facade

the glare probability in the occupied

Objectives

hours for each month is the same as Methodology

proposed case-2.

Case Study - Simulation Cases - Opt. angle configuration Results/Discussion - Daylight Analysis - Glare Analysis DGP scale

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

(%)

(%)

(%)

(%)

(%)

(%)

(%)

(%)

(%)

(%)

(%)

(%)

Imperceptible

87.5

100

67

100

100

100

100

100

89

75

100

100

Improvement

Perceptible

0

0

11

0

0

0

0

0

0

0

0

0

Conclusion

Disturbing

0

0

11

0

0

0

0

0

11

0

0

0

Intolerable

12.5

0

11

0

0

0

0

0

0

25

0

0

Daksh Talwar I Master’s Thesis 2017

- Visual Analysis

Future Consideration Source – Self-produced

Chair of Building Technology and Climate Responsive Design Prof. Dipl.-Ing.Thomas Auer

Technical University of Munich

Introduction



Proposed case 2 and 3 are the best.





During winter glare probability inside the office

increases due to the positioning of ASF

is least due to the following opt. angle

modules with the altitude angle as 75 degree

configuration :

(open position).

Altitude angle with stagnant positioning of

In January at 14:00pm, glare probability

- Motivation - State of Research - Adaptive Solar Facade Objectives



The same kind of intolerable glare probability Methodology

15 degree to maximum 30 degree (partially

is noticed in the month of October between

close).

13:00 and 14:00pm but here the ASF modules

Azimuth angles moving from a south-east

are totally in close position due to the lower

- Simulation Cases

facing (30 degree) to a south-west facing

sun angle.

- Opt. angle configuration

Case Study

Results/Discussion

(-30 degree) direction.

- Daylight Analysis - Glare Analysis Cases

Imperceptible

Perceptible

Disturbing

Intolerable

Base case

78.5%

14%

2.5%

5%

Proposed case 1

76.75%

11.25%

6%

6%

Proposed case 2

93%

1%

2%

4%

Proposed case 3

93%

1%

2%

4%

- Visual Analysis Improvement Conclusion Future Consideration

Daksh Talwar I Master’s Thesis 2017

Source – Self-produced

Chair of Building Technology and Climate Responsive Design Prof. Dipl.-Ing.Thomas Auer

Technical University of Munich

Introduction



This module movement appears to inverse

- Motivation

during the summer months :

- State of Research

As the high sun position supports open

- Adaptive Solar Facade

positioning of the modules to maximize shading

Objectives

and cutting down the direct solar radiation into Methodology

the space. 

Case Study

Also observed that the sides of the ASF

- Simulation Cases

framework invites the direct solar radiation

- Opt. angle configuration

into the room during early and later hours of

Results/Discussion

the day due to the absence of modules at the corners.

- Daylight Analysis - Glare Analysis - Visual Analysis Improvement Conclusion Future Consideration Daksh Talwar I Master’s Thesis 2017

Source – Self-produced

Chair of Building Technology and Climate Responsive Design Prof. Dipl.-Ing.Thomas Auer

Technical University of Munich

Introduction



As per the LEED guidelines for the view analysis, the calculation is done for all the 49 configurations.



- State of Research

The direct site line from a point 42 inches (1.05m) above the finish floor (typical seated eye height) is available.



- Motivation

- Adaptive Solar Facade Objectives

The calculations are based on elevations not on sections with the direct site line above the finish floor.

Methodology Case Study - Simulation Cases - Opt. angle configuration Results/Discussion - Daylight Analysis - Glare Analysis - Visual Analysis Improvement Conclusion Future Consideration

Daksh Talwar I Master’s Thesis 2017

Source – Self-produced

Chair of Building Technology and Climate Responsive Design Prof. Dipl.-Ing.Thomas Auer

Technical University of Munich

Introduction



Percentage of the compliant area is getting the views for each working hour (9-18) for every month.

- Motivation



Only 22.5% of compliant area is getting views for more than 75% during the working hours throughout

- State of Research

the year. 

- Adaptive Solar Facade

Therefore, LEED requirement to does not fulfill with ASF modules.

Objectives Methodology Case Study - Simulation Cases - Opt. angle configuration Results/Discussion - Daylight Analysis - Glare Analysis

Compliant area

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Avr.

getting view

(%)

(%)

(%)

(%)

(%)

(%)

(%)

(%)

(%)

(%)

(%)

(%)

Area = 100%

50

30

20

10

0

10

10

0

20

20

30

40

20

100%>Area>=75%

0

0

0

0

10

0

20

0

0

0

0

0

2.5

75% >Area

50

70

80

90

90

90

70

100

80

80

70

60

77.5

Total

Daksh Talwar I Master’s Thesis 2017

- Visual Analysis Improvement Conclusion Future Consideration Source – Self-produced

Chair of Building Technology and Climate Responsive Design Prof. Dipl.-Ing.Thomas Auer

Technical University of Munich

Introduction



Changing of glass VT.

- Motivation



Changing back plate material reflection.

- State of Research



Changing the grid size or design.

- Adaptive Solar Facade



To add the modules at the corners or to

Objectives

add a kind of permanent surfaces which

could

cut

off

the

Methodology

direct

Case Study

radiation into the room during early - Simulation Cases

and later hours of the day and

- Opt. angle configuration

invites only diffuse daylight. 

Results/Discussion

Analysis was ran for the month of March

to

improve

the

probability

between

15:00pm

- Daylight Analysis

glare to

- Glare Analysis

17:00pm for which proposed case-2

- Visual Analysis

was considered.

Improvement Conclusion Future Consideration Daksh Talwar I Master’s Thesis 2017

Source – Self-produced

Chair of Building Technology and Climate Responsive Design Prof. Dipl.-Ing.Thomas Auer

Technical University of Munich

Introduction DGP Scale

- Motivation

Imperceptible glare - DGP<0.35,

- State of Research

Perceptible glare - 0.35<=DGP<0.40

- Adaptive Solar Facade

Disturbing glare - 0.40<=DGP<0.45

Objectives Intolerable glare - DGP>=0.45

Methodology Case Study - Simulation Cases - Opt. angle configuration Results/Discussion - Daylight Analysis - Glare Analysis - Visual Analysis Improvement Conclusion Future Consideration Daksh Talwar I Master’s Thesis 2017

Source – Self-produced

Chair of Building Technology and Climate Responsive Design Prof. Dipl.-Ing.Thomas Auer

Technical University of Munich

Introduction



The simulation framework is successfully used to determine the visual comfort according to the different angle configurations over a year.



- State of Research

Proposed case-3 is the best one because of the proper availability of the daylight, imperceptible glare and view.



- Motivation

- Adaptive Solar Facade Objectives

Hence, this framework for the visual comfort qualifies for the analysis of the adaptive shading facades.

Methodology Case Study

Results

- Simulation Cases

100

- Opt. angle configuration

90 80

Results/Discussion

70 60

- Daylight Analysis

50

- Glare Analysis

40 30

- Visual Analysis

20 10

Improvement

0

Base case 300<=lux

Proposed case-1

Proposed case-2

Proposed case-3

Imperceptible glare

75%<=Compliant area>=100%

Conclusion Future Consideration

Daksh Talwar I Master’s Thesis 2017

Source – Self-produced

Chair of Building Technology and Climate Responsive Design Prof. Dipl.-Ing.Thomas Auer

Technical University of Munich

Introduction

The conclusion of this thesis led to the following future design considerations:

- Motivation



- State of Research

Further enhancing the simulation framework with the python scripting can reduce the simulation time hence making the framework more efficient and time saving.



Many design implementation can be done in order to improve the ASF design, which can further enhance the visual comfort conditions.



- Adaptive Solar Facade Objectives Methodology

The simulation framework can be implemented further to check the energy performance of the

Case Study

adaptive shading systems with control optimization of visual comfort. 

- Simulation Cases The performance of the ASF is influence by surrounding buildings and environment, which can obstruct the direct radiation into the space. Hence, reflected rays (diffuse light) play a crucial role in the overall behavior of the ASF. This could be tested by using different conditions.

- Opt. angle configuration Results/Discussion - Daylight Analysis - Glare Analysis - Visual Analysis Improvement Conclusion Future Consideration

Daksh Talwar I Master’s Thesis 2017

Source – Self-produced

Thank You

Daksh Talwar I Master’s Thesis 2017