Heat Gain (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
What is heat gain?
What is heat gain?
Increase in temperature inside a building from various sources
Three main sources of heat gain
Three main sources of heat gain
Solar radiation, body heat from occupants, electrical appliances
Ireland's approach to heat gain
Ireland's approach to heat gain
Maximise heat gain (unlike warmer countries that reduce it)
Best orientation to maximize heat gain?
Best orientation to maximize heat gain?
South-facing (receives most consistent solar energy)
Most significant source of natural heat gain
Most significant source of natural heat gain
Solar heat gain from sun radiation
Solar panels: % of hot water heating
Solar panels: % of hot water heating
of hot water heating needs
Optimal solar panel positioning
Optimal solar panel positioning
Within of south-facing
Photovoltaic panels vs solar thermal systems
Photovoltaic panels vs solar thermal systems
PV converts to electricity; thermal heats water
Max external openings (% of floor area)
Max external openings (% of floor area)
30% of floor area
What do U-values measure?
What do U-values measure?
Heat passing through building elements (lower = better insulation)