【摘要】 为了掌握公共建筑暖通空调系统的实际运行与能耗状况,选取重庆市3座典型公共建筑,对其空调系统进行夏季能耗测试。根据实测结果,分析了空调系统主要组成部分的电耗、冷水机组和空调水系统的能效、3座建筑的室内热环境状况。研究表明,目前公共建筑空调系统存在设计选型偏大、设备运行效率低、运行管理不规范、缺乏室温控制等诸多问题。提出了基于准确负荷计算的系统设计和部分负荷下的运行调控等节能建议。更多还原

【Abstract】 Three typical commercial buildings in Chongqing,P.R.China were selected to study the actual summertime operation and energy situations of heating ventilating and air-conditioning(HVAC) systems in commercial buildings.Based on tests of energy consumption of HVAC systems in these three buildings,we analyzed the electricity consumption of the main components of the air-conditioning systems.The energy efficiency of the chillers and air-conditioning water distribution systems were studied.The indoor thermal environment in these three buildings were also tested and discussed.It is concluded that problems exist in the air-conditioning systems of commercial buildings.Among the problems are over-sized system design,low equipment operating efficiencies,poor operation management,and lack of indoor temperature controls.To reduce energy consumption of HVAC systems in commercial buildings,we propose energy-efficient strategies such as sizing systems based on accurate load calculation and automatic control under partial-load conditions.更多还原