©Misawa Ltd

Effect of Heat Reduction by Garden Crete

• Reduction of heat is achieved with the evaporation of water which is contained within Garden Crete.

• Direct result - The evaporation heat of water is 540 cal/g.

• Evaporation of water 1g take 540 cal of calorie from surface of earth.

• During summer day time ,4 ~ 5 mm of water will evaporated from grass. 5mm/m2 of water takes 2700kcal of calorie from surface of earth per day.

• 2700kcal of calorie is equivalent to 3 hours operation of cooler.

• 40mm thickness of Garden Crete can retain 12kg/m? of water.
( 300kg/m3 x 0.04m = 12kg/m2)

• Assuming that Evaporation volume of Garden Crete is same as grass, i.e. 5mm per day.

• 1.5kg/m2 of water evaporates from Garden Crete.
( 12kg/40mm . m2 x 5 mm = 1.5kg/m2 )

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(c)Garden Crete