Photo AI
In order to maximise passive solar gain, a fully-glazed sunspace is included in the design of the house shown in the accompanying sketch - Leaving Cert Construction Studies - Question 10 - 2006
Question 10
In order to maximise passive solar gain, a fully-glazed sunspace is included in the design of the house shown in the accompanying sketch. (a) Using notes and freeha... show full transcript
Worked Solution & Example Answer:In order to maximise passive solar gain, a fully-glazed sunspace is included in the design of the house shown in the accompanying sketch - Leaving Cert Construction Studies - Question 10 - 2006
Step 1
Considerations when incorporating a fully glazed sunspace
Answer
-
Reducing Glare: It is essential to select appropriate glazing materials to minimize glare for the occupants. Using tinted glass or installing blinds/curtains that can be closed during peak sunlight hours can mitigate this issue.
-
Minimizing Heat Loss: Ensuring proper insulation around the sunspace is critical, especially during nighttime and winter months. Glazing should be double or triple-glazed to retain heat effectively while maintaining visibility.
Step 2
Preferred orientation for the house and sunspace
Answer
-
Orientation towards South: The house should be oriented such that the sunspace faces south or at 15° to due south. This orientation captures the maximum passive solar energy throughout the day.
-
Reduced Energy Costs: Correct orientation can lead to a 30% savings in fossil fuel energy, demonstrating the benefits of proper design choices.
Step 3
Considerations to help maximise solar gain
Answer
-
Insulation Design: Include thermal mass in walls and floors to help retain the heat gained during the day. Materials should be selected to maximize heat retention.
-
Ventilation and Air Flow: Design should ensure effective air circulation throughout the sunspace and adjoining areas. Installing vents can aid in transferring heat naturally and maintaining comfortable temperatures.