Integrated energy system in a green energy lab

Abstract

This chapter presents an introduction of an integrated energy system in a green building based upon the research experience in a green energy lab (GEL) of Shanghai Jiao Tong University. As a comprehensive platform for investigating state of the art technology in green buildings, GEL is equipped with advanced HVAC systems, renewable energy power systems, smart control systems, etc. The study on high-efficient air-conditioning system attaches great focus on green buildings as this system accounts for most of the energy consumption in a building. A case study of an integrated renewable air-conditioning system in GEL is conducted, including the high-performance heat pumps (water source and ground source) and the solar-assisted air-conditioning system. In addition, renewable energy source is another focus for the sustainable design of green buildings. A 6.72 kWp solar photovoltaic arrays and a 5 kWp wind turbine are installed in GEL as the renewable energy power system. In order to have a stable power supply, a micro-smart grid is formed by connecting the renewable energy power system with the national grid. Moreover, a home energy management system (HEMS) for a smart control and management of the energy system is included. Both the design and performance of the integrated energy systems are summarized, which is instructive for the design and operation of green buildings in Shanghai and other areas with similar geographic or climate conditions.