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How does building orientation affect energy efficiency?

Answer 1

Heat consumption and release.

Generally speaking, a building facing south will absorb the most heat from the sun; a building facing north will, depending on where you live, absorb less heat. If the building is intended to be heated, facing south will be the most economical option because less money will be spent heating the building with other sources like gas and electricity.

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Answer 2

Eliana Andrade

Building orientation affects energy efficiency by influencing the amount of sunlight a building receives, which impacts heating and cooling loads. Proper orientation can maximize passive solar heating in cold climates and minimize solar heat gain in hot climates, reducing the need for mechanical heating and cooling. It also affects natural ventilation and daylighting, potentially reducing the reliance on artificial lighting and HVAC systems.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.