中国城市建筑能源系统的集成创新

对占建筑能耗80%的暖通和热水供能模式进行了热力学第二定律分析,指出了把效率从传统模式的不到10%提高到65%以上的理论依据和新技术途径.主要是:在围护结构优化节能的配合下,采用低损耗的空调末端新技术、规模化的区域供冷技术以及冷热电多联供技术,形成新一代城市能源供应系统.文中提出了借鉴国外成熟经验,实现中国城市建筑物能源供应系统创新的挑战和机遇;指出主要的障碍是观念和机制;并分别提出了新建城区和现有区域的实施步骤,以及政府应起的规划、政策、组织、协调等主导作用.

China's Building Energy System Calls for Creation and Municipal Planning

In this paper,the Second Law Analysis of Thermodynamics is advanced for the energy supply modes of building HVAC and hot water system,which occupies 80% of building energy consumption.The theoretical basis to increase exergy efficiency from the traditional 10% to 65% is then pointed out.The corresponding technical approaches,based on the energy-conservative design of building envelop,should integrate the creation of low exergy-loss air-conditioning terminal technology with large-scope district cooling system(DCS) and distributed combined cooling,heating and power system(DES/CCHP),forming the new generation of Town Building Energy Purvey System.In order implement the creation of Town Building Energy Purvey System in China,the paper pointed out the challenge and opportunity,and the importance of taking the experiences of developed countries and overcome the main barriers in idea and mechanism.Finally,the implementation practice steps for newly constructed towns and existing towns are suggested respectively;the significant role of municipal administration on planning,policy,organization and coordination are emphasized.