net zero buildings
A case study regarding an apartment of net zero energy (NZEA) in Shanghai is introduced in this article. The passive design of energy efficient, solar collector system, HVAC&DHW system, indoor terminal units and renewable energy power system of the building are introduced briefly, particularly the concept of the energy system. Based on performance curves obtained from the experiment, a simulation model for the whole system is established for the evaluation. The performance of NZEA was evaluated in terms of the indoor comfort, energy balance and life cycle assessment.