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

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Thames & Kosmos

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Handleiding

2020

Cooling the

house

You will need

– Assembled model house

– Charged batteries in battery station

– Water pump and climate control module

– Shallow bowl or dish

– Cold water

– Ice cubes

Here’s how

1. Pour ice-cold water into the bowl, but do not

fill it completely. Add a few ice cubes to the

water in the bowl.

2. Put the water pump in the cold water and

make sure that the open end of the hose is

also in the water. Attach it to the bowl it if it

does not stay in the water on its own.

3. Then plug the pump cable into port 3 on the

battery station. You can hear the pump start

operating underwater. Make sure that the

other electronic parts and the cardboard

parts of the house do not come into contact

with the water.

4. Observe the thermometer strip.

5. Additionally, you can also place a bowl of

ice cubes inside the house.

Similarly to the previous experiment, the cold

water cools the climate control module and the

surrounding air. You can see the temperature drop

on the thermometer strip. However, real air

conditioners do not use water — they use the

ambient air and a coolant.

An air conditioner needs electricity to operate the

cooling circuit explained in this graphic.

EXPERIMENT 5: COOLING THE HOUSE

How an air conditioning system works

Expansion valve

Interior

Cooled air

Hot air

Cooling coil

Air from inside

Compressor

Air from outside

Condensers

Exterior

Fan Fan

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