【作者】 陈攀；

【导师】 卢军； 简晓敏；

【作者基本信息】 重庆大学 ， 建筑与土木工程（专业学位）， 2019， 硕士

【摘要】 能源短缺与环境污染一直是人类面临的重要挑战。进入20世纪以来,工业化加快了能源的消耗和污染的加重。当前我国正面临资源短缺和环境问题严峻的压力,但同时我国却充斥着大量浪费。据统计,我国的建筑与发达国家相比,单位面积能耗指标远高于发达国家,我国99%建筑都属于高能耗建筑。建筑领域能耗在我国总能耗一直占有较大比例。按照我国建筑业发展趋势和国际经验估算,我国的建筑能耗占社会总能耗的比重在2020将高达35%。可见在我国节能工作中建筑节能是重点。随着我国工业制造4.0计划和智能制造的提出,高新工业技术将大力发展,伴随而来的是工业建筑如雨后春笋版扩张。据统计,当前我国每年的建筑工程投资额中,工业建筑投资额的比重在一半以上。而据资料显示,工业建筑一直是高能耗建筑,工业能耗占比在我国总能源消耗比例近70%,而其中工业建筑的能耗占工业能耗的比重超过15%。可见工业建筑能耗巨大。但目前我国关于工业建筑的节能指导却较少,建筑领域的节能研究和规范制定大多集中在公共建筑。为此必须大力发展工业建筑节能技术、发展绿色工业建筑,才能有效实现建筑节能。本文首先总结了工业建筑能耗大、废热多的能耗特点,接着以重庆某光电子厂房为例,针对光电子厂房的负荷特点、新风特点,提出了空调系统冷凝热回收、空压机余热回收、排风热回收三种热回收技术,以期通过研究这三种热回收技术在本项目的节能效益,来指导以光电子厂房为代表的工业建筑的节能减排。本文第一部分是空压机余热——空调冷凝热回收技术在光电子厂房的应用研究。通过监测平台和实测两种手段,监测光电子厂房单独供暖情况和联合供暖情况,得出:中温冷水热回收机组综合能效为7.63,远高于冷水机组国家一级能效6.30,节能效果显著;空压机余热——空调冷凝热回收供暖系统在光电子厂房运行稳定,能满足光电子厂房全年供暖需求,使用这套余热回收系统每年可节省3589.22吨标准煤,可节约559.1万元,并能实现减排CO₂ 8865.37吨/年,减排SO₂ 71.78吨/年,减排粉尘35.89吨/年。本文第二部分是排风热回收技术在光电子厂房的应用研究。首先给出排风热回收系统节能量计算方法,利用MATLAB建立排风热回收系统节能量的数学模型。接着划分空调系统功能时间段,提出4种排风热回收系统控制模式,并比较了4种排风热回收系统控制模式,得出最节能的排风热回收系统控制模式是模式4:带旁通且温度（或比焓）控制。然后再介绍常见的显热回收系统和全热回收系统,以及间接蒸发冷却+显热回收芯体的复合式热回收系统（简称间接蒸发热回收系统）,并对这几种热回收系统做了比较分析,得出:从节能性和经济性而言,全热回收系统>间接蒸发热回收系统>显热回收系统。最后本文将项目地点考虑在不同气候区,分别研究了三种热回收系统在北京、重庆和广州三个典型城市的适用性,得出:就控制模式而言,在北京、重庆和广州三个城市采用全热回收系统采用带旁通且温度（或比焓）的控制策略运行,全年节能量最高,投资年限最短;就热回收系统形式而言,全热回收系统的节能性和经济性最好;就地区而言,在北京地区最适宜采用热回收系统。更多还原

【Abstract】 Energy shortage and environmental pollution have always been important challenges facing mankind.Since the 20th century,industrialization has accelerated energy consumption and pollution.At present,China is facing the severe pressure of resource shortage and environmental problems,but at the same time,China is full of a lot of waste.According to statistics,compared with developed countries,China’s building energy consumption index per unit area is much higher than that of developed countries.99%of buildings in China are high-energy buildings.Energy consumption in the building sector has always occupied a large proportion in China’s total energy consumption.According to the development trend of China’s construction industry and international experience,the proportion of building energy consumption in China’s total social energy consumption will be as high as 35%in 2020.It can be seen that in China’s energy conservation work building energy saving is the key.With China’s industrial manufacturing 4.0 plan and the proposal of intelligent manufacturing,high and new industrial technologies will be vigorously developed,with the rapid growth of industrial buildings.According to statistics,China’s annual construction investment,the proportion of industrial construction investment in more than half.According to the data,industrial buildings have always been high-energy buildings,and industrial energy consumption accounts for nearly 70%of China’s total energy consumption,among which the energy consumption of industrial buildings accounts for more than 15%.Visible industrial buildings huge energy consumption.However,there are few guidelines on energy conservation of industrial buildings in China.Therefore,it is necessary to develop energy-saving technology of industrial buildings and develop green industrial buildings.The article first summarizes the industrial building energy consumption characteristics of large energy consumption,waste heat more,then a photoelectron factory in chongqing as an example,according to the characteristics of the photoelectron factory load characteristics,the fresh air,air conditioning system was put forward of condensing heat recovery of waste heat recovery,air compressor,exhaust air heat recovery,three kinds of heat recovery technology in order to research the three kinds of heat recovery technology in the energy-saving benefit of this project,to guide the represented by photoelectron factory industrial building energy conservation and emissions reduction.The first part of this paper is the application research of air compressor waste heat-condensing heat recovery technology in optoelectronic workshop.Through monitoring platform and field measurement,the optoelectronic workshop’s individual heating and combined heating conditions were monitored,and the results showed that the comprehensive energy efficiency of the cooling water and heat recovery unit was 7.63,which was much higher than the national level 1 energy efficiency of the chiller unit,and the energy saving effect was significant.Waste heat of air compressor--condensing heat recovery heating system of air conditioner operates stably in optoelectronic workshop,which can meet the annual heating demand of optoelectronic workshop.Using this waste heat recovery system can save 3589.22 tons of standard coal and 5.591 million yuan per year,and achieve emission reduction of 8865.37 tons of CO₂ per year,71.78 tons of SO₂ and 35.89 tons of dust.The second part of this paper is the application research of exhaust heat recovery technology in optoelectronic workshop.Firstly,the energy saving calculation method of the exhaust heat recovery system is presented,and the mathematical model of the energy saving of the exhaust heat recovery system in this electronic workshop is established by MATLAB.Then the functional time period of the air conditioning system is divided,four control modes of the exhaust heat recovery system are proposed,and four control modes of the exhaust heat recovery system are compared.The most energy-saving control mode of the exhaust heat recovery system is mode 4——with bypass and temperature（or specific enthalpy）control.And the common sensible heat recovery system are introduced and the total heat recovery system,and the indirect evaporative cooling&complex of sensible heat recovery core body heat recovery system（hereinafter referred to as indirect evaporative heat recovery system）,and it made a comparative analysis of several kinds of heat recovery system,it is concluded that:in terms of energy saving and efficiency,the total heat recovery system>the indirect evaporative heat recovery system>the sensible heat recovery system.Finally this paper considers the project site in different climate zones,the three kinds of heat recovery system are studied respectively in Beijing,chongqing and guangzhou the applicability of the three typical cities,it is concluded that:in the three cities of Beijing,chongqing and guangzhou adopts full heat recovery system according to the pattern 4control strategy,the highest annual energy saving,the investment of the shortest;Regionally,the heat recovery system is the most energy efficient in Beijing.更多还原