Heat Loss (Leaving Cert Construction Studies): Flashcards
📚Flashcards
Practise the cards
10 cards from this deck
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Practise the cards
10 cards from this deck
Purpose of heat loss calculations
Purpose of heat loss calculations
Determine energy performance & compliance with building regulations
Unit used for heating period in calculations
Unit used for heating period in calculations
Seconds
Unit for measuring heat loss per second
Unit for measuring heat loss per second
Watts (W)
Formula for fuel consumption
Formula for fuel consumption
What is elemental heat loss?
What is elemental heat loss?
Examines individual building components separately
What is overall heat loss method?
What is overall heat loss method?
Building's thermal performance as a complete system
Max % of floor area for combined openings (elemental method)
Max % of floor area for combined openings (elemental method)
30%
How does building compactness affect U-value limits?
How does building compactness affect U-value limits?
More compact allows higher U-values; less compact needs lower
Three primary sources of heat gain
Three primary sources of heat gain
Solar radiation, body heat from occupants, appliances
Heat gain % for standard glass
Heat gain % for standard glass
Approximately 81%