摘要
公共建筑集中空调系统高能耗问题日益突出，要改善这一现状最有利的方法就是从设计阶段尽可能根除造成能耗问题的隐患，集中空调冷源及水系统能耗在空调系统总能耗中占据了很大比例，因此在集中空调冷源及水系统方面开展节能设计研究具有重要的理论和实际意义。
本文对公共建筑空调冷源及水系统节能设计与能耗分析进行了研究，采用最优化方法建立了实现集中空调冷源及水系统节能设计的最优化目标函数，并以此函数为基准实现某公共建筑集中空调冷源及水系统的节能设计，并通过该建筑空调冷源及水系统的实际运行数据对节能设计的效果进行评价。
通过对集中空调冷源及水系统工作流程及能耗层次图的分析，确定以冷源及水系统全局能耗优化为目标的优化方案和目标函数，并对目标函数中冷水机组能耗、冷冻水泵能耗、冷却水泵能耗和冷却塔能耗分别建立数学模型，确定独立变量并给出约束条件，确定目标函数与独立变量间的综合表达式。
通过分析冷水机组配置与公共建筑冷负荷特性关系、水泵配置与空调区域特性关系、水泵配置与表冷器换热特性关系，提出通过综合制冷系数对冷水机组选型方案评价的方法；通过空调冷冻水系统静特性系数确定二级泵变流量方案适用性的评价准则。
按照目标函数中冷源及水系统全局能耗最小的优化目标，采用DeST分析某公共建筑空调冷负荷特性，对其空调冷源及水系统进行节能设计，以系统年能耗最低的原则为依据确定节能系统方案，最后通过该建筑空调冷源及水系统实际能耗分析评价节能设计的效果。
重庆行政区划图
关键词：空气调节；冷源；水系统；节能设计；能耗分析
I
Abstract
The energy problem of air-conditioning system in public building increas prominently, the best method to improve the current situation is to eradicate from the design stage as possible.The energy
consumption of central air conditioning in chiller and water systems ocupies a large proportion of the total energy consumption of air conditioning. So it is necessary to carry out the work of energy saving on cold source and water system of the central air-conditioning.
In this paper, the public building energy-saving design and energy consumption of air conditioning chiller and water system analysis is studied.Optimization objective function which is aim to get the minimum energy consumption of chiller and water system in the air the public building is built using the optimization method. According to the objective function, it is possible to achieve the goal of energy saving design of chiller and water system in a public building. The actual operation data can be ud to analyze the result of the energy saving design.干脆利落
After analyzing working process and Energy level diagram of chiller and water system in a public building, an objective function which is to get minimum energy consumption of the chiller and water system can be built. And veral Mathematical models about energy consumption of chiller ,chilled water pump, cooling water pump and cooling tower are built to account for the objective function. To solve the objective function, it is necessary to determine the constraint for independent variables. Then the Comprehensive objective fun expression can be determined.
After the analysis of characteristic relationship between chiller configuration and public building cooling load, Water pump configuration features and air conditioning area, water pump configuration and heat transfer of cooler, a method of using the integrated refrigeration coefficient to estimate the chiller is determined. And a method of using static parameter to determine feasibility of using condary variable pump is determined too.
According to the function which is aim to get the minimum energy consumption in chiller and water system, cooling load characteristics of a public building air conditioning is modeled through using DeST. In this part, The air conditioning cold source, water system for energy-saving design in air conditioning for the building is finished. At the same time , evaluation of actual operation data of the chiller and water system in the air conditioning system of the public building is finished too.
Keywords: air conditioning, energy saving design, chiller, water system,energy saving design, analysis of energy consumption.
支农目录爱人在线
摘要........................................................................................................II 第1章绪论. (1)
1.1课题研究的背景和意义 (1)
1.2国内外研究现状 (2)
1.2.1 我国建筑节能的基本目标和任务 (2)
1.2.2 国内研究现状 (3)
1.2.3 国外研究现状 (5)
1.3课题研究的内容 (6)
1.4本章小结 (6)
第2章公共建筑集中空调冷源及水系统节能设计 (7)
2.1最优化方法 (7)
2.2公共建筑集中空调冷源及水系统节能设计的全局影响因素 (7)
2.2.1 冷水机组配置与公共建筑建筑冷负荷特性的关系 (7)笑话大全爆笑
2.2.2 水泵配置与公共建筑空调区域特性的关系 (9)
2.2.3 水泵配置与表冷器换热器特性的关系 (11)
优柔寡断
2.3公共建筑集中空调冷源及水系统节能设计优化目标 (13)
2.3.1 公共建筑集中空调冷源及水系统工作流程 (13)
2.3.2 公共建筑集中空调冷源及水系统节能评价指标 (14)
存想2.3.3 公共建筑集中空调冷源及水系统优化目标 (17)
2.4数学模型 (18)
2.4.1 目标函数 (18)
2.4.2 冷水机组数学模型 (18)
2.4.3 冷冻水泵数学模型 (19)
萤火虫的图片
2.4.4 冷却水泵数学模型 (21)
2.4.5 冷却塔数学模型 (22)
2.4.6 约束条件 (22)
2.5本章小结 (24)
第3章公共建筑集中空调冷源及水系统节能设计工程应用 (25)
