Research on urban energy planning and its optimization methods based on the integrated simulation models of micro-climate and multiple energy complements in Central Business Districts (CBDs) of hot-humid climate

Based on the national energy policy of “Multiple energy implement, stage of use, suitable temperature, equal quality”, the project proposes the urban energy planning methods for the Central Business Districts (CBDs) under hot-humid climate. These CBDs, which locate around 1~1.5 square kilometers, have huge requirements for energy with high densities. Through the integrated energy simulation models with outdoor thermal environment as to consider the special micro-climate inside the CBDs, the over-all requirements for cooling, heating,
domestic hot water and electricity of the district and their characteristics are
predicted. As a result, the district energy system(DES) is determined based on the
implements of multiple energy with local balancing. The usage of low-temperature heat and waste heat is analyzed so that the DES should be operated with high efficiency, reliability and cost-effectiveness. Through the researches of this project, the methods of district energy planning and optimization, operation
strategies and design lines are outlined, and the integrated simulation model under micro-climate in hot-humid climate districts are proposed. The final goal is to ensured that the energy efficiency of DES should exceed 70% and the cost should not exceed the individual energy systems.