Evaluation on the energy consumption and thermal performance in different residential building types during mid-season in hot-summer and cold-winter zone in China

摘要

As a result of rapid urban development and economic growth in China, the energy issue is becoming more and more important today because of a possible energy shortage in the future. In China, residential energy consumption (REC) is the second largest energy use category (10%) following the industry (Residential energy consumption in urban China: A decomposition analysis, as shown in Fig.1), and is likely to continue its rapid growth. In order to fulfill the Chinese government's commitment that Chinese CO2 emissions would peak in 2030, as a result, improving the energy efficiency and reducing the emissions from the building sector is significantly important. A survey, in the form of a questionnaire, of energy consumption and thermal situation in different residential building types (detached house, Multi-story building, high-rise building), was undertaken in three cities (Shanghai, Hangzhou in Zhejiang province, Changzhou in Jiangsu province) in hot-summer and cold-winter region, these three cities were selected to represent the most flourishing economic provinces. Hot-summer and cold-winter region in China was selected for the evaluation of energy and thermal performance analysis (EETP), because of its special weather conditions, huge energy consumption (as both heating in winter and cooling in summer are necessary), and other regional characteristics. 183 households were sampled during the survey. Energy consumption analyses showed that the amounts of energy use, in different building types were very different as their distinct characteristics. Also, experiments were separately done in typical examples of three different building types. Systematic evaluation on EETP for three different residential building types, were put forward to assess the energy efficiency and thermal performance of three different building types.