Paper Conference

Proceedings of ASim Conference 2012: 1st Asia conference of IBPSA-China, Japan, Korea


Simulation application in evaluation of zero energy building: case study

Shuai Deng, Ruzhu Wang, Yanjun Dai

Abstract: In addition to experiment, simulation is an important tool to assist the evaluation of high performance buildings and associated energy systems. An experiment-verified system simulation model, which describes the couple operation between the building and its on-site energy system, can repeatedly and quickly supply operation performance data in an acceptable error range for the entire year, even the whole life time, under different external conditions. Zero energy building (ZEB), which is considered to be an integration solution to address problems of energy-saving, environment protection, and CO₂ emission reduction in the building section. The critical evaluation indicator for ZEBs is an annual energy balance between delivered energy from grid and renewable energy generation and this evaluation indicator can be realized by an experiment-verified simulation system. A case study is present in this article to show possible simulation applications in evaluation of ZEB in terms of simulation-assisted design, simulation verification and simulation-assisted evaluation. The evaluation results show that the studied ZEB consumes 3335 kWh per year which can be offset by a 24 m² kW PV array under a typical Chinese life style in Shanghai. With the assistance of simulation, the evaluation results prove that the zero energy aim can be achieved and also show that indoor temperature comfort can be kept during 94.4% occupant time.
Pages: 544 - 551