Using the latent heat of phase change material (PCM) for decreasing the indoor temperature fluctuations,recovering the waste heat, air-conditioning and ventilation and storing solar energy, etc.is considered as one of the most effective and attractive methods for building energy conservation. In this paper, a series of form-stable PCMs are prepared by encapsulation of some fatty acids and their binary eutectic mixtures as the thermal energy storage PCM into organic polymer and inorganic nano-partical...