论文部分内容阅读
商业用户电能替代主要是电采暖替代传统燃煤锅炉供暖,主流技术选型有二:一是夏季用冷水机组(WCU)制冷、冬季配置蓄热式电锅炉(HSEB)供暖系统;二是采用兼具供暖、制冷功能的地源热泵(GSHP)系统。为掌握两类系统适用的边界条件,在建立成本模型和运行约束条件的基础上,提出一种以两类系统成本偏差最小为目标、直接求解边界条件的优化模型。对天津市综合性办公楼用户群测算边界条件并做摄动分析,结果表明:对特定地区特定用户群,决定两类系统适用性的边界条件参量是夏、冬季最大冷/热负荷比值和利用小时数;拉大峰谷价比或在大昼夜温差地区HSEB+WCU系统更具经济优势,抬高需量电价或对无热水需求的全天供暖/制冷用户则选择GHSP系统有利。
Commercial users instead of electricity is mainly electric heating alternative to traditional coal-fired boiler heating, the mainstream of technology there are two types of selection: First, the summer chiller (WCU) refrigeration, winter configuration regenerative electric boiler (HSEB) heating system; Ground source heat pump (GSHP) system with heating and cooling functions. In order to grasp the applicable boundary conditions of the two systems, an optimization model is proposed to directly solve the boundary conditions with the goal of minimizing the cost deviation of the two types of systems based on the cost model and operation constraints. The results show that the boundary conditions for determining the suitability of the two systems are the summer and winter maximum cold / heat load ratio and utilization Hour; pulling the peak / valley ratio or HSEB + WCU systems more economically advantageous in large day and night temperature zones, GHSP systems are favored by increasing GHG demand or day-long heating / cooling demand without hot water.