Comparison of energy consumption between reference office buildings in Chinese and American energy efficiency standards

Compares the energy efficiency standards of China and the United States. Taking an office building in Shanghai as example, sets up the reference building models respectively according to Chinese and American energy efficiency standards on public buildings. In the light of ASHRAE 90.1, calculates the energy consumption of the air conditioning system and the whole office building. The result shows that the requirements in building envelope and unit efficiency by the Chinese standard are lower than those by ASHRAE 90.1. However, the control of humidity results in increase of re-heating in American air-conditioning systems. Therefore, the levels of average energy consumption calculated according to the Chinese standard and ASHRAE 90.1 are basically the same. Suggests decreasing properly the heat transfer coefficient of building envelope and improving the performance of units in the Chinese standards in order to be beneficial to energy saving. Besides, the principle of energy consumption simulation should be stipulated in detail in the Chinese standard for the sake of decreasing the human effect in the result of energy consumption simulation.