Thames & Kosmos Green Engineering: Clean Energy & Sustainable Living handleiding

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Handleiding

Insulati

Insulating a building prevents heat loss through the facade to the

outside, especially in regions where it gets cold in winter. In

addition, insulation prevents interior rooms from heating up as

much on sunny summer days. Unfortunately, many insulation

materials used are porous plastics such as polystyrene (also known as Styrofoam), which are

flammable and non-renewable. There are also non-flammable mineral-based insulation

materials, as well as those made from renewable materials such as wood, hemp, or plant fibers.

All of these materials contain small air-filled spaces (similar

to a sweater). Since air is a poor conductor of heat, they

have an insulating effect. The insulation materials are

usually pressed into solid panels, attached to the outside

walls, and then plastered over or sandwiched between

interior and exterior walls. There are also bricks whose

hollow spaces are filled with insulation. Installing

insulation materials in a house costs money, but it soon

pays for itself through the energy costs saved.

Air Conditioners

–

do they

make

sense

Temperatures that are too high in summer are exhausting: they disrupt sleep

and make people tired and unable to concentrate. Not to mention that

extreme heat can be dangerous, especially for older people. An air

conditioning system can help there. It cools and dehumidiﬁes the air and

thus improves the indoor climate. However, air conditioning systems use a

lot of electricity. It’s therefore best to combine them with photovoltaics —

which provide a lot of energy, especially on hot days. Incidentally, there are

types of heat pumps that can also cool — instead of transporting heat from

the outside to the inside, they work the other way around.

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