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The Carbon Neutral Design Project:
Carbon Neutral Teaching: Curriculum Materials Development
Gregory D. Thomson
University of Wisconsin-Milwaukee

Spring 2008 UWM Solar Decathlon Carbon Neutral House Project
- mixed UG/G comprehensive design studio (first semester)

Daylighting & Solar Control

Sections

Design Performance Objective

Solar Penetration

The design of daylighting systems in buildings requires that there be seveal steps in the process. They should start with physical models of conceptual and schematic design to see daylight penetration in a space using sun peg charts. These can be prefaced by looking at daylight penetration patterns in design drawings. These should be compared to the physical models and to any digital models to ensure that there are no errors in the model making and analysis process. The work shown above includes course work from an associated lecture course on illumination and thermal comfort.

Students: UWM Solar Decathlon Team
Software / Tools:

Digital Modeling

Sun Angle Calculator

Ecotect

Spring 2008 UWM Solar Decathlon Carbon Neutral House Project- mixed UG/G comprehensive design studio (first semester)

Daylighting & Solar Control

Develop a sunshading strategy that controls solar radiation and daylighting as bioclimatically appropriate.

• course and project outline

Investigative Strategy

Perform solar control and sunshading device analysis using progressively more complex methods. Begin with manual calculations and design sketches that address conceptual issues. Design development issues should be evaluated with accurate digital tools, both visual and numerical.

Evaluation Process

Compare each level of analysis against the previous step. Discuss relative and absolute changes in the patterns and locations of sun penetration. Reference model photographs, digital images, and drawings to one another. Digital model making can be a useful tool in this exercise, but only if student are using it after they know what the expected outcomes are going to be.

Using the Sun Angle Calculator as a means of establishing an hypothesis, can be a good method of checking the locations and patters of the digital model against that of a physical model or a simple plan and section sketch.

In addition, there are only two programs that I know if that allow the user to cut horizontal or vertical sections through the building, without losing the shadow casting of the pieces of the building behind the section cut. EcoTect is the other software with this capacity, and it has a specific sunshading device design module, which removes some of the analytical thought from the process.

Evaluative Criteria

 

Cautions - Possible Confusions
Range of Applicability in terms of CLIMATE
ALL
Range of Applicability in terms of TYPE
ALL
Reference Material


Duration of Exercise

Degree of Difficulty / Previous Knowledge Required


 

Daylighting

Daylight Analysis
Student Name
Captions should start with a title and describe in a few

Daylightiing

Daylight Analysis
Student Name
Captions should start with a title and describe in a few


   

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