CSIRO logoCSIRO video

Solar cooling

YouTube Ref: http://youtu.be/cz-kquRmvqk

Date: 8 August 2013

Transcript

[Music plays, CSIRO logo and website www.csiro.au appear on screen]

[Text appears:  A super cool innovation.  Solar powered air conditioning]

[Text appears: As read by Narrator]

Narrator: Over 50 per cent of the greenhouse gas emissions you produce in your home are generated by heating, air conditioning and hot water.

In other words keeping your home warm in winter, cool in summer with nice hot water on tap is emitting 2.5 to 5 tonnes of greenhouse gas emissions each year.

[Image of an electricity bill appears with 50-60% written across it]

It also contributes a hefty amount to your electricity bill, between 50 to 60 per cent.

[Text appears: CSIRO has invented a new solar air conditioning system for Australian homes]

CSIRO has invented a new solar air conditioning system for Australian homes.  This technology solution will reduce Australia’s emissions, reduce your energy bills and reduce our demand for electricity and gas.

[Image changes to a picture of a house with per centage of greenhouse gas emissions number going down then to an electricity bill with numbers reducing]

[Text appears: If every home in Australia installed CSIRO’s solar cooling technology above a world map where Australia is highlighted]

If every home in Australia installed our solar cooling technology it would be the equivalent of saving 15 mega tonnes of CO2 or taking 3.5 million cars off the road.

[Image changes to a 3D model of a house]

CSIRO’s solar air conditioning is an innovative three in one technology that provides hot water, cooling and heating.

[Image changes to a computer generated picture of a solar air conditioning unit with the Solarhot Water Collectors and Hot Water Tank sections marked on the picture]

It uses only a fraction of the electricity of current systems and halves greenhouse gas emissions.

The process begins with a typical solar hot water system.  Water is heated by solar panels and stored in the hot water tank. 

[Image changes to the a computer generated picture of the water being heated and moving to the solar air conditioning unit]

This solar hot water can then be used throughout the home, reducing the need for gas or electricity.

[Image changes to a computer generated image of Compartment 1 and Compartment 2]

A portion of the hot water is diverted into CSIRO’s new solar air conditioning unit, which is divided into two compartments. 

[Image changes to a computer generated picture of the hot water entering the Heat Exchanger]

The hot water enters a heat exchanger in the first compartment of the unit. 

Similar to a car radiator the heat exchanger uses the hot water to heat outside air that has been drawn into the first compartment through the vent.

[Image changes to a computer generated picture of the outside air being draw in to the compartment and then zooms in on the desiccant wheel]

At the same time outside air is also being drawn into the second compartment into a desiccant wheel. The desiccant wheel is the most critical part of the system.  It is used to dry out the air before it goes into the house.

Slowly turning the desiccant material in the wheel continuously absorbs moisture in the second compartment and then the absorbent material dries out in the first compartment. The desiccant material is dried out using the hot dry air generated by the heat exchanger.  This air is then exhausted outside the home. 

[Image changes to a computer generated picture of dry air flowing into the indirect evaporative cooler]

The dry air from the desiccant wheel flows through an indirect evaporative cooler which creates a stream of cool dry air.

[Image changes to a computer generated picture of cool dry air being sent through the home]

This cool dry air is then fed into the home in order to cool down the rooms.  In winter the solar heated air can be used directly to warm the house. 

CSIRO’s solar cooling system is a low emissions alternative to conventional air conditioning and gas or electric powered heating, providing more comfortable homes, reduced energy bills and a cooler planet.

[CSIRO logo and website www.csiro.au appear on screen with the following text:  A super cool innovation.  Solar powered air conditioning www.csiro.au/solar-cooling]


CSIRO’s Official YouTube Channel: http://www.youtube.com/user/csiro/