BDES2013 Architectural Technologies
Task:
1. Calculate the heat flow due to solar radiation using this equation, Q(s) = S x I x A, through a 0.6m x 1.8m window exposed to 977W/m2 of solar radiation. The window has a solar heat gain coefficient (SHGC) of 0.7 and is in 30% shade at the time being assessed. (5 points)
. Calculate the heat flow due to solar radiation using this equation, Q(s) = S x I x A, through a 0.6m x 1.8m window exposed to 977W/m2 of solar radiation. The window has a solar heat gain coefficient (SHGC) of 0.7 and is in 30% shade at the time being assessed. (5 points)
2. Given the following sun-path diagram, calculate the azimuth and altitude of the sun on the 23rd September at 3:00pm. (5 points)
3. If Q(c) = C x ΔT x A and U=1/R:
a. Calculate the heat flow through an external wall 5.4m long by 2.7m high. The wall has an r-value of 1.5m2°K/W. The outdoor temperature is 15°C while the internal temperature is 23°C. (4 points)
b. Identify one aspect of the wall that could be changed to reduce heat transfer through the wall. (1 point)
4. The following table contains the mean minimum/maximum temperature & humidity for an Australian city:
a. Complete the following building bioclimatic chart. (10 points)
b. Based on this information, what might be some appropriate design strategies for this climate? (5 points)
5. A prospective client is considering engaging the architectural practice where you work to design a new residence in Adelaide, South Australia. The site has sweeping westerly ocean views and is located near the coast. In addition to making the most of the site’s location, one of their design requirements is for their new home to be as energy efficient as possible.
Before they sign an agreement to proceed with the project, they have asked for a brief outline of your proposed approach and methodology to achieve an energy efficient outcome.
Following are some of the questions that have been asked by the client. In preparation for the next client meeting, your employer has asked you to provide some dot points, short answers and/or diagrams in response to the following three stages of the project.
Sketch Design (10 Points)
What Are The Key Design Considerations That Need To Be Addressed To Achieve This Outcome?
View Points Of The House Of Wither Some Room Is Facing It Into The Sea
Location/Shape
Concept
Site Analysis
House/Block Orientation (For Good Lighting And Take The Wind Direction Consideration)
Current And Future Family Needs
Wish List Of Inclusions
Watch Your Budget (You Don’t Wanna Blow The Bugdet)
Avoid Trend (Build/Design A House That Will Last Forever)
What Are The Likely Passive Design Strategies That Would Be Utilised?
Passive Building Design Passive Building Design Is A Design Process To Achieve Very Low Energy Demand For Space Heating Or Cooling.
• What Information Is Required, Where Would You Find This Information And How Would You Use It? These Information Can Be Found In Ncc Or National Construction Code Or The Australian Standard Some Design Aspect Can Be Derive From Others Design And Develop It From There.
Part C: Design Considerations (Continued) Design Development (10 Points)
• How Would You Test These Strategies To Validate The Performance Of The Design?
Using Vlux And Easycfd I Can Plot Out Hoow Accurate These Design Is And Wether It Is Applicable In Real Situation Or Not. For Instance, Vlux Is Rendering The Lights Penatrates The House. I Can Use This Software To Identify Which Areas Are Not Penetrated With The Sun During In Real Time Testing And Improve It From There Of What Needs To Be Change. Easycfd Is How The Wind Interact In The House, This Will Be The Same As The Other Software Of How This Help Me Top Identyfy Where The Cold And Hot Air Circulate The House.
• When Selecting Building And Construction Materials, What Performance Characteristics Should Be Considered? Strength. Availability. Durability. Workability. Ease Of Transportation.
• The Client Is Particularly Sensitive To Cold Weather – How Can We Guarantee They Will Be Comfortable?
C. Completion And Post Occupancy (10 Points)
• What are some things the clients need to know about their new home before they move in?
• How can we evaluate if the outcome is energy efficient?
• If the client decides to install air conditioning later, what should they look for?
• If the client decides to install solar PV later, what are some things they need to consider?
