Abstract: Based on comparability of porous material seepage flow and surface evaporation with plant leaf transpiration, a kind of porous material artificial leaf is proposed. Models of artificial leaf and realistic leaf are set. Influence of porosity, thickness and particle diameter of the artificial leaf on surface temperature is discussed. According to simulation under representative ambient conditions, we found that an artificial leaf with thickness of 0.5 cm, porosity of 0.05 and particle diameter of 2.5 mm is able to simulate infrared characteristics of a realistic leaf. Surface temperature difference is within 3℃ in a day.

Key words: porous material, artificial leaf, infrared characteristic simulation