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Sun Lizard Solar Climate Control System

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Sun Lizard Solar Climate Control -- How Effective Is It

In Heating Mode


Works when there is sunlight

The Sun Lizard relies on the sun.  Its performance is directly related to how much sun you get each day  and will vary depending on your location and solar radiation you receive.

4–6C warmer in winter

If you have the Sun Lizard installed and sized to your building correctly, you can expect a 4 to 6 degrees warmer space in winter

Recommended area:
100m2 for single collector
150m2 for dual collector

The single collector naturally warms an area of 100m2.
The dual collector will service a recommended area of approximately 150m2. Both recommended areas assume an average 2.7m ceiling height.

Requires reasonable insulation and thermal mass in the building

In all cases we assume that you have adequate insulation and thermal mass and that you have sealed up any significant drafts in the building.  If you have a very energy efficient and well designed home, the effective area may be larger.

 

In Cooling Mode


Works both day and night

 

Up to 10C cooler in summer

A Sun Lizard installed and sized to your building correctly assisted by cooling vents that allow cooler air to enter from a different part of the building, will cool the building by up to 10 degrees in summer.

Recommended for an area of :
100m2 for single collector
150m2 for dual collector

The single collector naturally warms an area of 100m2.
The dual collector will do a recommended area of approximately 150m2. Both recommended areas assume an average 2.7m ceiling height.

 

Calculating your solar radiation

It is important to know how much sun you receive each day in your local area. In most parts of Australia, during the hotter months, there are around 8 hours of clear skies per day when there will be sunshine to power the solar powered fans.  In winter this is about 5 hours. Most areas of Australia get enough sun to provide a significant amount of solar electricity for heating and cooling.

To calculate the potential heating and cooling you can get from the Sun Lizard visit the Bureau of Meteorology web site to view maps of the average daily sunshine hours for each area of Australia.

From there, you can observe the number of sunlight hours received for your local area over each month, year or season.

The following table gives typical results for the amount of hours of clear skies per day in winter, received for all major centres and the potential kilowatt hours produced from each Sun Lizard solar heat collector.

City

Average Winter Sunlight Hrs per day
(May- Sept)

Average Summer Sunlight Hrs per Day
(Oct – Apr)

Average Potential Solar Heating per day per collector (kilowatt/hrs) *

Sydney

6-7 hours

7-8 hours

7.8–9.1 kwh

Melbourne

4-5 hours

7-8 hours

5.2-6.5 kwh

Brisbane

7-8 hours

7-8 hours

9.1-10.4 kwh

Adelaide

5-6 hours

8-9 hours

6.5-7.8 kwh

Perth

5-6 hours

9-10 hours

6.5-7.8 kwh

Hobart

4-5 hours

6-7 hours

5.2-6.5 kwh

ACT

5-6 hours

8-9 hours

6.5-7.8 kwh

* Multiply the number of hours of sunlight by 1300 watts which is the heat potential of each collector to obtain your average potential for solar heating.  If you have 2 collectors multiply by 2600watts.

Do I need supplementary heating or cooling?

Thermal comfort is often dependant upon each individual and how they their body adjusts to the changes in temperature.
General guidelines for thermal comfort indoors or in the workplace shows that a comfortable temperature range:

  1. in winter when wearing warm heavy clothes is 20° to 24°C
  2.  the summer when wearing light clothes is 23° to 26°C.

For public halls and buildings the temperature range is between 16° to 21°C.

With a reasonably insulated or energy efficient building, the Sun Lizard would easily provide enough heating or cooling to bring the comfort level in the recommended temperature range during the day and allow the building to maintain that comfort level early into the night.

Supplementary heating or cooling may be required when there are consecutive rainy days or during the extreme hot and cold temperatures in the year. However, the amount of energy used and the appliance required to maintain that the comfort level would be minimised as the Sun Lizard would have prevented the building from becoming too hot or too cold.

 

SEE

The Sun Lizard
On
the ABC's
"New Inventors"

LISTEN
To Sun Lizard inventor Colin Gillam explain how the Sun Lizard can work for you


News:
Australia Orders Key Sun Lizard Investor To Leave Country
READ MORE

 

 
Sun Lizard Pty Ltd

Copyright © 2007 Sun Lizard Pty Ltd