Due to the energy crisis in 1970, the energy saving is more important for the human civilization. The energy-saving policy is important for the economic growth and competition of Taiwan. The energy of daily life and business consumes 17% of the total energy, especially the air conditioning of architectures on the peak hours occupying a third in summer. So the building energy-saving policy is the most important in Taiwan. The main of theme building energy saving is not only to save energy but also to consider the comfortable and healthy of the living environment. So that, the optimal design of the building energy saving of commercial buildings in Taiwan has been established in this paper. In this study, theoretical analysis and a full scale experiment has been performed to validate this design. Results showed this design is suitable for the NPTC building in the weather condition of south Taiwan, which also complies with the energy code of Taiwan.

This thesis deals with the adiabatic cooling air. Adiabatic cooling is a possible kind of cooling and air humidification with low energy requirements. Experimentally, evaporative cooler is tested with different types of material in order to find out the most efficient and practically useful filling for adiabatic cooling that could be used as part of the air-conditioning equipment in practice. The results are used in the practical part. The project compares the application of air-conditioning equipment with/without adiabatic cooling in the possible design of the air-conditioning equipment for the shopping center. The use of the air conditioning system with adiabatic cooling, as a more efficient variant, is then applied to the design itself.

The master thesis explores modelling fluid dynamics images in simulation software Star-CCM+ Version 8.04.007. Three proposed variants are modelled. The first variant describes modelling swirl diffusers, the second and third variant describe modelling wall diffusers. The results of modelling are processed in the form of scalar and vector arrays, which depict the velocity of flowing air, temperature and the age of air.