The Energy Consumption Situation And Energy-saving Analysis Of Public Buildings In Shanghai

Energy issue is a very important issue in Chinese 11th 5-year-plan. Building energy consumption, which accounts for 20% of energy consumption of the whole society and still increasing steady annually, becomes a very hot topic. However, we don't have an objective and overall evaluation on the building energy consumption currently. No systematical and consistent standard measurement for building energy is available. The basic energy consumption index data is incomplete and can't be shared. All these make it extremely difficult to have a correct evaluation on building energy consumption. It also becomes very tough to establish a reasonable energy saving standard. In the mean time, it has undermined the development and application of energy saving technology.This paper surveyed the building energy consumption data of Shanghai Vs. overseas. According to the measurement data and operation records of HVAC system and other building equipments, the energy consumption current situation of buildings and HVAC systems for three typical public buildings in Shanghai were performed. In summary, the following work was carried out: 1) Compare and analyze the statistic methods, building codes, energy basic data, energy consumption data of several building types (office building, shopping centre, hotel and university buildings). 2) The measurement survey has been conducted on three buildings to analyze the feature of operation schedule, building and HVAC energy consumption. 3) One hotel was selected to conduct the HVAC measurement in cooling mode and feasible optimizing plan and potential were given.