Heat Transfer Test

OBJECTIVE:
To conduct a test to determine the degree of heat transferred through the Energy Brick when exposed to high temperatures, and record any changes on the surface temperature of the unexposed face.

METHOD:
The C.S.I.R.O. were asked to conduct this test.

A test wall was built using the Energy Bricks.

Temperature loggers were placed in varying positions on both the internal and external surfaces of the wall to determine maximum, minimum and average temperatures at these locations.

One side of the Energy Brick wall was placed against a furnace, and temperatures were increased until the exposed surface reached 900°C.

RESULTS:
The exposed side of the Energy Brick reached 900°C after 35 minutes.

The temperature loggers, which were placed on the opposite face of the Energy Brick wall, indicated an average temperature of only 28°C, with the highest temperature recorded at only 40°C.

CONCLUSIONS:
The extreme heat on the exposed Energy Bricks was NOT transferred through the Bricks.

This clearly indicates the Energy Bricks’ thermal resistance in extreme heat.

An important observation to note is that the heat source did not have an effect on the Energy Bricks until after 10 minutes had elapsed, when temperatures had reached 700°C.

After 25 minutes, the temperatures on the unexposed face began to be consistent at the average temperature of 28°C, even though the temperature on the exposed face was still steadily climbing beyond 830°C.

Similar thermal resistance can be expected in regard to the Energy Bricks’ exposure to extreme cold.

The graphs produced by the C.S.I.R.O. of this test are shown below.

By reviewing them, we feel confident that you will have a greater understanding of the thermal advantages of using the Energy Brick as part of your construction process.

Furnace Temperature Graph
Unexposed Temperature Test

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