不同气候条件下BIPVT建筑供能系统节能特性分析

Energy Saving Character Analysis of BIPVT Building Energy Supply System Under Different Climatic Conditions

设计了基于微热管阵列的光伏光热建筑一体化(building integrated photovoltaic-thermal,BIPVT)组件与近零能耗建筑,该建筑采用太阳能-空气能多能互补供能系统,实现了建筑供冷、供热与供电的多种用能需求.为研究该建筑在不同气候条件下能否满足近零能耗建筑的标准,搭建了BIPVT建筑及太阳能-空气能多能互补供能系统,建立了供能系统仿真模型,对不同气候条件下BIPVT建筑的节能特性进行分析.结果表明,不同气候条件下,BIPVT建筑供能系统的太阳能贡献率占建筑负荷比例为56%~98%,发电量占满足建筑环境需求用电量的比例为70%~100%.根据近零能耗建筑技术标准,对BIPVT建筑的节能特性进行分析,在不同气候条件下的典型城市,BIPVT建筑都可以满足近零能耗建筑或零能耗建筑的标准,节能减排效益较好.

In this paper,a building integrated photovoltaic-thermal(BIPVT)module and nearly zero energy building based on micro heat pipe array was designed.A solar-air energy multi-energy complementary energy supply system was adopted in the building to achieve multiple energy needs for building cooling,heating and power supply.To study whether the building can meet the standard of nearly zero energy building under different climatic conditions,a BIPVT building and its energy supply system were built.A simulation model of the energy supply system was established to analyze the energy-saving characteristics of the BIPVT building under different climatic conditions.Results show that the solar energy contribution rate of the BIPVT building energy supply system accounts for 56%to 98%of the building load,and the power generation takes up 70%to 100%of the power consumption to meet the building environment demand under different climatic conditions.According to the technical standards for nearly zero energy buildings,the energy-saving characteristics of BIPVT buildings were analyzed.In the selected typical cities,it can meet the standards of nearly zero energy buildings or zero energy buildings.The BIPVT building has better energy-saving and emission-reduction benefits,and it is a green building form worthy of promotion and application.