GATE AR · 2020 · AR
Question 45: architecture
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Question 45
ARNAT2 marksNeeds review
A room measures 5m × 10m × 3m (L×B×H). Consider the following conditions,
Total solar radiation incident on the roof surface = 800 W/m²
Outdoor air temperature = 40°C
Outside film coefficient of the roof surface = 18 W/m²
The outdoor mean radiant temperature is equal to outdoor air temperature
The minimum reduction required in solar absorptance of the roof (rounded off to two decimal places) to achieve a 20° reduction in sol-air temperature is ________
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2020AR
GATE AR 2020 · Paper 1
Architecture and Planning · Original paper archive
- Section
- Architecture and Planning
- Question type
- Numerical answer (NAT)
- Marks
- 2 marks
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