暖通空调论文
暖通空调专业简介
我所学专业是建筑环境与设备工程。一开始对此专业毫不了解，通过对各种专业课的学习，逐渐了解了该专业的主要研究领域。本专业培养具备室内环境设备系统及建筑公共设施系统的设计、安装调试、运行管理及国民经济各部门所需的特殊环境的研究开发的基础理论知识及能力，能在设计研究院、建筑工程公司、物业管理公司及相关的科研、生产、教学等单位从事工作的高级工程技术人才。主要课程有：工程热力学、传热学、流体力学、建筑环境学机械设计基础、自动控制原理、流体输配管网、热质交换原理与设备、建筑给排水工程、建筑电气、空调技术、制冷技术、供热工程、设备自动化、锅炉及锅炉房设备、工业通风、建筑设备自动化、建筑电气、高层民用建筑空调设计、燃气工程、建筑设备工程预算等。其中暖通方向是发展较为完备并且十分重要的区域。在北方，冬季需要供暖，涉及暖通。
暖通在学科分类中的全称为供热供燃气通风及空调工程，包括：采暖、通风、空气调节这三个方面，从功能上说是建筑的一个组成部分。暖通的英文缩写HV AC(Heating,Ventilating and Air Conditioning)。
暖通空调是分户的中央空调，中央空调它最大特点,是能够创造一种舒适的室内环境。而家居一般的分体的空调，它只能解决冷暖问题，而解决不了空气处理过程。现在，有了暖通空调就不一样了。现在这个空气处理过程它有以下这些过程：首先是空气进来以后，除了引进新风以外，可以把空气进行冷却处理，然后就进行过滤处理，过滤处理以后，增加了几大特点：第一就增加电子除尘器.，它主要可以捕捉非常小的颗粒的灰尘，一般来讲它可以捕捉一个微米的灰尘，而这个灰尘的范围内大部分都是细菌、病毒、烟尘，或者是异味这样就都可以过滤掉；另外就是会增加一种加湿设备，这个加湿器可以创造我们房间的加湿达到40%左右的相对湿度，这样人会感到很舒适。在我国的建筑行业，一直以“建筑设计院”牵头。一个建筑项目确立之后，首先由某个建筑设计院进行总体设计。建筑的总体设计包括许多分项，一般如下：建筑设计，结构设计，基础设计，电力（强、弱电）设计，给排水设计，暖通设计，配套园林绿化景观设计等等。暖通设计（如果该项目需要）是指该项目中的所需要的“空气调节系统”简称“空调系统”。一般“空调系统”包括制冷供暖系统，新风系统，排风（排油烟）系统等的综合设计。所以说“暖通”从功能上说是建筑的一个组成部分。从建筑设计来说，他是建筑设计的一个分项。并不是单指“空调”。需要说明的一点是：“空调”在一个建筑中可能是“中央空调系统”，也可能是“中央空调与独立空调的混合系统”，也可能全部是“独立空调的系统”。一切根据建筑的功能以及投资者的意向和实际需要而定。
空调是用人为的方法处理室内空气的温度、湿度、洁净度和气流速度的系统。可使某些场所获得具有一定温度、湿度和空气质量的空气，以满足使用者及生产过程的要求和改善劳动卫生和室内气候条件。按空气处理设备的集中程度划分为以下几类：一、集中空调系统。所有空气处理设备（风机、过滤器、加热器、冷却器、加湿器、减湿器和制冷机组等）都集中在空调机房内，空气处理后，由风管送到各空调房里。这种空调系统热源和冷源也是集中的。它处理空气量大，运行可靠，便于管理和维修，但机房占地面积大。二、半集中空调系统。集中在空调机房的空气处理设备，仅处理一部分空气，另外在分散的各空调房间内还有空气处理设备。它们或对室内空气进行就地处理，或对来自集中处理设备的空气进行补充再处理。诱导系统、风机盘管+新风系统就是这种半集中式空调系统的典型例子。三、局部式空调系统。此系统是将空气处理设备全部分散在空调房间内，因此局部式空调系统又称为分散式空调系统。通常使用的各种空调器就属于此类。空调器将室内空气处理设备、室内风机等与冷热源与制冷剂输出系统分别集中在一个箱体内。分散式空调只向室内输送冷热载体，而风在房间内的风机盘管内进行处理。按采用新风量的划分为：一、直流式系统。又
称全新风空调系统。空调器处理的空气为全新风，送到各房间进热湿交换后全部排放到室外，没有回风管。这种系统卫生条件好，能耗大，经济性差，用于有有害气体产生的车间。实验室等。二、闭式系统。空调系统处理的空气全部再循环，不补充新风的系统。系统能耗小，卫生条件差，需要对空气中氧气再生和备有二氧化碳吸式装置。如用于地下建筑及潜艇的空调等。三、混合式系统。空调器处理的空气由回风和新风混合而成。它兼有直流式和闭式的优点，应用比较普遍，如宾馆、剧场等场所的空调系统。
正是由于我们专业的存在，并一直努力设计创新更多更好的设备以供调节改善人们的生活环境以及生活方式，提高人们的生活水平。城镇建筑环境的供暖、通风、空调及制冷系统安装、调试及运行管理需要我们的存在，建筑电气的设计业需要我们的协助。为了创造更好的生活舒适度，我们一直在奋斗着，努力发展我们的专业，进行更深入的研究，希望能创造出更美好的明天。我也要努力学习跟多的专业知识，希望毕业后成为设备工程师，创造出更优越的生活环境。
Hvac professional introduction
What I learned is professional construction environment and equipment engineering. A began the process of professional knew nothing, through various major area of study, came to know the professional the main research field. This specialized raise has the equipment system and indoor environment construction of the public facilities system design, installation, and operation management of the sectors of the national economy and the special environment of the research and development of the basic theory of knowledge and ability, can in design institute, construction engineering company, property management company and the correlation of scientific research, production, teaching, and other units engaged in the work of the senior engineering and technical personnel. Main course: engineering thermodynamics, heat transfer and fluid mechanics, mechanical design, building environment based automatic control principle, fluid pipeline network, heat and mass transfer principle and equipment, building water supply and drainage engineering, building electric, air conditioning technology, refrigeration technology, heating engineering, equipment automation, boiler and boiler room equipment, industrial ventilation, construction equipment automation, building electrical, high civil buildings air conditioning design, gas engineering, construction equipment engineering budget, etc. Among them is the development direction of hvac more complete and important areas. In the north, the winters need heating, involves the hvac.
In the subject classification of the heating, ventilation and heat supply called gas air conditioning project, including: heating, ventilation, air conditioning these three aspects, from the function of the building is a part. HV AC the abbreviation of HV AC (Heating, Ventilating and Air Conditioning).
Individual hvac is the central air conditioning, the central air conditioning it biggest characteristic, is able to create a kind of comfortable indoor environment. And the general of the air conditioning does household, it can solve the problem changes in temperature, and can not solve the air treatment process. Now, with the air conditioning is not the same. Now the air treatment process it has the following these process: first is the air in later, in addition to introduce outside air, can put the air for cooling treatment, then filtering processing, filtering processing after, increase a few major characteristics: first increases electronic precipitator., it basically can capture
very small particles of dust, in general it can capture a micron of dust, and the dust within the scope of the most are bacteria, viruses, smoke, or is peculiar smell so that it can filter out; Another is to increase a humidifying equipment, the diffuser can create our room humidifying reached about 40% relative humidity, so that people will feel very comfortable. In our country's construction industry, has been to the "architectural design institute" lead. An architectural project after establishment, the first by a architectural design institute in overall design. Construction of the overall design including many breakdown, general as follows: architectural design, structure design, the foundation design, power (strong, ba) design, water supply and drainage design, hvac design, matching garden afforestation landscape design, and so on. Hvac design (if the project need) is to point to the project of the need "air conditioning system" hereinafter referred to as "air conditioning system". General "air conditioning system" including cooling heating system, fresh air system, and exhaust (platoon lampblack) system and the integrated design. So say "hvac" from the function of the building is a part. From the architecture design for, he is building design of a breakdown. And not only refers to "air conditioning". Need to say that point is: "air conditioning" in a building may be "the central air conditioning system", also may be "central air conditioning and independent air-conditioning mixing system", may also are all "independent air-conditioning system". According to the function of the building and all the intent of the investors and the actual requires.
Air conditioning is for the method to deal with the indoor air temperature, humidity, cleanliness and airflow velocity of the system. Can make for some places with certain temperature, humidity and air quality air, to meet the requirements of the users and the production process and improve labor health and indoor climate conditions. According to the air treatment equipment concentration is divided into the following categories: a, central air conditioning system. All air treatment equipment (fan, filters, heater, cooler, humidifier, minus the wet and refrigeration unit, etc.) are concentrated in the air conditioner, air handling, the duct to all the air conditioning. This kind of air-conditioning system heat source and cold source is concentrated. It handles the air quantity, reliable operation, easy to management and maintenance, but computer room covers an area of big. Two and a half, central air conditioning system. Concentration in the air conditioning room air treatment equipment, only deal with part of the air, and in the scattered the air-conditioned room in the and air treatment equipment. They or in indoor air for in situ treatment, or on the air treatment equipment from complement to deal with. Induction system, fan coil + fresh air system is the half the typical example of central air-conditioning systems. Three, local type air conditioning system. This system is will air treatment equipment in air conditioning room all scattered, so local type air conditioning system called distributed air conditioning system. Usually use a variety of air conditioner will belong to such. Air conditioner will indoor air treatment equipment, indoor fan and cooling and heat sources and refrigerants output system, concentrated in a box in vivo. Distributed only to indoor air conveying cold heat carrier, and the winds in the room of the fan tube plate for processing. According to the new air is divided into: a, straight streaming system. Also called smoke-expelling air conditioning system. Air conditioner processing of air to all the fresh air, to all the room into hot wet after exchange all discharged outside, not back to duct. This system health conditions, a lot of energy, economy is poor, used to have harmful gas produce workshop. LABS, etc. Second, close system. Air conditioning system treatment all air recycling, not added the new system. System energy consumption is small, poor sanitation, need to air oxygen in the regeneration and have carbon dioxide suction style device. As
for an underground building and submarine air conditioning. Three, the hybrid system. Air conditioner processing by return air and fresh air mixture. It has the advantages of jet injector and closed, are widely used, such as hotels, theatre of the place such as air conditioning system.
It is because of our professional exist, and has been trying to design innovation more and better equipment for adjusting the improvement of people's living environment and lifestyle, improvement of people's living level. Town building environment of the heating, ventilation, air conditioning and refrigeration system installation, commissioning and operation management need we exist, the construction of the electrical design industry need our help. In order to create a better life comfort, we have been of struggle, efforts to the development of our professional, further study, the hope can create more beautiful tomorrow. I will study hard with more professional knowledge, hope after the graduation become equipment engineers and create a better living environment.
暖通空调设计毕业设计说明书
摘要 本设计为哈尔滨望江集团办公楼空调系统工程设计。哈尔滨望江集团办公楼属中小型办公建筑，本建筑总建筑面积4138m2，空调面积2833m2。地下一层，地上八层，建筑高度33.9m。全楼冷负荷为191千瓦，全楼采用水冷机组进行集中供给空调方式。 此设计中的建筑主要房间为办公室，大多面积较小，且各房间互不连通，应使所选空调系统能够实现对各个房间的独立控制，综合考虑各方面因素，确定选用风机盘管加新风系统。在房间内布置吊顶的风机盘管，采用暗装的形式。将该集中系统设为风机盘管加独立新风系统，新风机组从室外引入新风处理到室内空气焓值，不承担室内负荷。风机盘管承担室内全部冷负荷及部分的新风湿负荷。风机盘管加独立新风系统由百叶风口下送和侧送。水系统采用闭式双管同程式，冷水泵三台，两用一备；冷却水泵选三台，两用一备。 在冷负荷计算的基础上完成主机和风机盘管的选型，并通过风量、水量的计算确定风管路和水管路的规格，并校核最不利环路的阻力和压头用以确定新风机和水泵。 依据相关的空调设计手册所提供的参数，进一步完成新风机组、水泵、热水机组等的选型，从而将其反应在图纸上，最终完成整个空调系统设计。 关键词：风机盘管加独立新风系统；负荷；管路设计；制冷机组：冷水机组
Abstract The design for the Harbin Wangjiang Design Group office building air conditioning system. Harbin Wangjiang Group is a small and medium-sized office building office buildings, the total floor area of building is 4138m2, air-conditioned area is 2833m2. There are eight floor of the building, building height is 33.9m. Cooling load for the entire floor, 191 kilowatts, the whole floor using Central Cooling Chillers to focus on the way . This design of the main room of the building for office, most of them is very small, and the rooms are not connected, the selected air-conditioning system should be able to achieve independent control of each room, considering the various factors to determine the selection of fan-coil plus fresh air system. Arrangement in the room ceiling fan coil units, using the dark form of equipment. Set the focus on fan-coil system, plus an independent air system, fresh air from the outdoor unit to deal with the introduction of a new wind to the indoor air enthalpy value, do not bear the load of indoor. All bear the indoor fan-coil cooling load and part of its new rheumatoid load. Fan-coil plus an independent air system sent by the Venetian and the under side air delivery. Closed water system with a dual-track program, three cold-water pump, dual-use a prepared; cooling pumps three elections, one prepared by dual-use. In the cooling load calculation based on the completion of the selection of host and fan coil units, and air volume, the calculation of water, the wind pipe and water pipes to determine the specifications of the road and check the resistance to the most disadvantaged and the loop to determine the pressure head new fans and pumps. Based on the relevant manuals provided by air-conditioning design parameters, and further completion of the new air units, water pumps, hot water units, such as the selection, which will be reflected in their drawings, the final design of the entire air-conditioning system Key words: PAU+FCU systems; load; pipeline design; refrigeration machine； Chillers
暖通空调毕业设计开题报告
1.课程设计的意义 通过本次的课程设计，使自己拥有一定的暖通空调设计能力；了解一些相关的规范和条例；熟悉并掌握暖通空调设计流程；同时使自己的思维更加的严谨，态度更加的认真，为以后的社会工作奠定了扎实的基础。 2.文献综述 随着国民经济的快速持续发展，作为支柱产业之一的建筑业也得到迅猛发展。而作为建筑业的重要组成部份的暖通空调业，其新产品、新技术、新材料更是层出不穷。暖通空调业发展所遵循的原则，概括起来就是：节能、环保、可持续发展，保证建筑环境的卫生与安全，适应国家的能源结构调整战略，贯彻热、冷计量政策，创造不同地域特点的暖通空调发展技术。因此，如何结合设计的需要，重视相关技术，并有选择而合理的应用在我们的设计中，满足业主要求，提高设计水平，是我们必须努力做到的。 2.1.暖通空调变工况点优化控制及能量管理探讨 2.1.1.工况点优化控制 暖通空调变工况点优化控制问题的研究近年来在我国被重视。S.W.Wang 提出了一种基于整个系统环境的预测响应及能量运行来改变暖通空调系统控制，设定点的系统方法，并用遗传算法对系统进行优化控制，同时优化多个设定点来改善系统响应和降低系统能耗[1]，后来他又采用自适应性控制理论对某海水冷却。空调系统进行了优化控制研究，采用带指数遗忘的最小二乘法参数辨识方法和基因遗传优化算法，对空调系统的空气处理单元进行了优化控制研究[2]。罗启军等人提出了一项动态的优化技术在一个指定期间内，能得到使目标函数( 运行成本或者峰值能耗) 最小的房间温度曲线，该算法还给出了暖通空调设备的最佳开/关时间[3]。K.T.Chan 等人提出用遗传算法对风冷制冷机的冷凝温度设定点进行优化控制以提高制冷机的效率[4]。此外，有许多研究者用人工神经网络来模拟暖通空调系统中各个设备的非线性特性，用于实现对整个空调系统的优化控制。目前，研究者们将更多先进的建模方法和智能优化方法引入到了暖通空调的优化控制中，更加注重变工况点的在线优化控制。何厚建等人对已建的暖通空调各关键设备的静态模型采用用实数编码的遗传算法建立了水系统工作点优化控制策略[5]杨晓平等人采用模糊聚类和RBF方法建立了空气处理单元的动态数学模型，以最终舒适性为目标优化空气处理单元的温湿度和送风压力[6]。孙一坚根据空调负荷变化对一级泵水系统进行变流量控制，取得了显著效果[7]。总之国内的学者更多探讨的是把智能方法引入控制系统的优化中，仿真研究多，实践成果少。
暖通空调毕业设计
1.工程概况及主要设计参数 (1) 1.1 工程概况 (1) 1.2 基本设计参数 (1) 1.3 设计依据 (3) 2.空调系统的负荷计算 (3) 2.1空调房间的冷负荷计算 (3) 2.2湿负荷计算 (8) 2.3热负荷计算 (9) 3系统方案确定 (18) 3.1系统的分区 (18) 3.2空调系统的分类 (19) 3.3空调系统的比较 (20) 3.4空调系统方式的确定 (24) 3.4 空调房间送风量的确定 (27) 3.5空气处理设备选型 (29) 4.室内气流组织形式的确定及计算 (33) 4.1 送、回风口的型式 (33) 4.2 气流组织形式 (35) 4.3 气流组织的设计计算 (38) 5水系统设计 (44) 5.1水系统简介 (44) 5.2水系统的管路设计计算 (49) 5.4空调水系统水力计算 (51) 5.5系统管材的选择 (54) 6.风管的布置及其水力计算 (55) 6.1风管设计的基本知识 (55) 6.2风管的水力计算 (58) 7.空调制冷机房设计 (63) 7.1空调冷水系统 (63) 7.2热水循环系统.................................................................................. - 66 - 7.3冷冻水系统设计.............................................................................. - 68 - 7.4冷却水系统...................................................................................... - 71 - 7.5循环水系统的补水、定压与膨胀.................................................. - 74 - 7.6 管道的水力计算............................................................................. - 76 -8系统保温及消声、减震........................................................... - 79 - 8.1管道及设备的保温.......................................................................... - 79 -
空调制冷技术结课论文
2013级暖通空调结课论文 暖通空调技术的发展 与建筑节能 学生姓名：李刚 学号：201305104101 指导教师：李琼 所在学院：建筑工程 专业：建筑环境与能源应用工程
呼和浩特市某办公建筑节能设计 摘要 随着现代人们的生活理念和方式的多样化细节化，对于建筑物内的环境要求也日益增加，舒适和高品质的居住环境成为人们追求的趋势，伴随着建筑能耗的总量呈逐年上升趋势，而暖通空调系统在建筑能耗中占有重要比重。本文通过分析暖通空调系统能耗的构成及主要特点，针对当前在节能方面面临的问题，对暖通空调控制系统设计进行了探讨，并提出解决途径与方法。 关键词：暖通空调，环保节能，解决方案 HVAC development and building energy saving Abstract: along with the modern concept of people's lives and the diversification of means of details, to the environment within a building requirements are also increasing, comfortable and high quality living environment become the trend, with the total building energy consumption is rising year by year, and HVAC system in building energy consumption occupies the important proportion, In this paper, through the analysis of HVAC system energy consumption composition and main characteristics, in view of the current in the energy saving problems, HVAC control system design is discussed, and puts forward the ways and methods. Keywords: HVAC, Environmental protection and energy saving, Solution 1 引言
暖通空调管道设计论文
浅谈暖通空调管道设计 内容摘要 中央空调的管道设计要求合理、满足建筑功能需求和控制投资费用，空调管道的设计和选型是暖通空调工程重要一部分，本文根据暖通技术理论知识，结合实例简要谈谈暖通管道的分类、水力计算、系统选择和冷凝水排放。 关键词：暖通空调；管道设计；水力计算；系统选择； abstract：the central air conditioning pipeline design requirements, meet the reasonable construction functional requirements and control investment costs, air conditioning design and selection of pipe is an important part of hvac engineering, this paper according to the hvac technology theory, combined with the talk about the classification of hvac pipeline briefly, the hydraulic calculation, selection and condensed water from the system. keywords: hvac; piping design; the hydraulic calculation; system choice; 中图分类号：s611文献标识码：a 文章编号： 随着社会科学技术不断的发展，建筑设计高度、环境舒适和智能化程度会越来越高，中央空调系统是建筑中不可缺少的设备设施
暖通空调工程师职称论文发表选题参考题目
暖通空调职称论文发表选题参 考题目 以下是暖通空调职称论文发表题目，均采用论文选题题目软件，经过大数据搜索比对精心整理而成，各职称论文发表题目均为近年来所发表论文题目，可供暖通空调职称论文发表选题参考题目，也可以作为暖通空调毕业论文撰写选题参考。 1......暖通空调设计常见问题研究 2......对暖通空调设计施工问题的探讨 3......天津万通中心暖通空调设计 4......暖通空调节能减排优化设计 5......探讨暖通空调系统的节能方法 6......FLOWMASTER在暖通空调中的应用 7......暖通空调控制系统设计 8......浅谈暖通空调节能问题 9......暖通空调在线网上高城 10.....对暖通空调系统降噪问题的探讨 11.....欢迎订阅《暖通空调》(月刊) 12.....某五星级酒店暖通空调设计 13.....暖通空调技术的进步对现代建筑的影响 14.....某设计院科研楼暖通空调系统设计 15.....浅谈高层建筑的暖通空调系统设计管理 16.....北京理工大学体育馆暖通空调设计 17.....暖通空调的施工管理要点 18.....暖通空调安装施工过程中的问题与解决方法 19.....《暖通空调热泵技术》介绍 20.....暖通空调自控设计中配合问题的思考 21.....杭州华联UDC·时代广场暖通空调设计 22.....浅谈现代暖通空调设备安装的施工问题 23.....建筑节能中暖通空调的一般技术措施 24.....大面积全封闭灵活厂房暖通空调设计 25.....上海市某养老院的暖通空调设计 26.....天津奥林匹克中心体育场暖通空调系统设计 27.....暖通空调设计方案分析
暖通空调毕业设计(论文)任务书
毕业设计(论文)任务书 毕业设计(论文)题目：某市某综合楼空调系统设计 系别能源与动力学院班级建环本121/122 学生姓名学号 指导教师职称 毕业设计(论文)进行地点：校内 任务下达时间： 2015年 12 月 24 日 起止日期：2016年 3 月1日起——至 2016年 6 月日止 教研室主任年月日批准 1、论文的原始资料及依据：
（一）题目来源：某市某综合楼建筑结构图 （二）设计主要技术参数 （1）土建资料 详见建筑图纸。 (２) 气象参数：根据本市的气象资料确定； (３)建筑参数： 外墙体结构：根据地区自行选定，如δ=370 m m红砖，内外抹灰20mm 屋面：根据地区自行选定，如200mm厚混凝土板加12.5mm厚加气混凝土保温层。 外窗：根据地区自行选定，如标准玻璃的单层钢窗，全部挂淡色窗帘，（４）室内空调设计参数：温度t n=26℃； 湿度φn=60%； 风速不大于0.3 m/s。 （５）照明容量： 40W/m2 （６）房间人数：0.5人/m2，群集系数0.92 （三）设计主要技术关键 正确进行空调负荷和新风量的计算，确定出冷气方案，合理地布置管道，并进行水力计算，合理选择及布置设备，做好气流组织。 2、设计（论文）主要内容及要求 通过本次设计使学生系统地掌握空调系统设计的主要方法和步骤，能根据实际情况合理确定空调方案，会计算空调系统的负荷量和新风负荷量，能合理布置管道和设备，了解空调设备的型式及用途，会进行设备的选型，合理进行气流组织，会计算水管、风道的阻力，选取水泵、风机等。使学生能把所学知识灵活运用到实际当中去，让理论与实际相结合，为学生毕业以后的工作打下坚实基础。 主要内容： 空调系统的设计 （1）、由建筑物所在地区确定室内外气象参数； 夏季室内外设计计算参数；室内温度、湿度、风速、新风量等参数。
暖通空调系统节能设计论文
关于暖通空调系统节能设计探讨 摘要：随着国民经济的快速发展，人们生活水平的提高，暖通空调的应用日益普及，大大改善了人们的生产生活环境，但能耗问题也随之凸显起来，为了创造一个舒适的人居环境，建筑舒适性空调系统得以广泛应用。本文在暖通空调系统节能设计上及节能设计相关问题上进行了阐述。 关键词：空调系统设计节能技术对策措施 abstract: with the rapid development of national economy, the improvement of people’s living standard, hvac applications the increasing popularity, has greatly improved the people’s production and life environment, but also will highlight up energy consumption problems, in order to create a comfortable living environment, building comfort air-conditioning system can be widely used. based on the hvac system energy saving design on questions and energy saving design is discussed in this paper. keywords: air conditioning system design technology for energy conservation measures 中图分类号：s210.4文献标识码：a 文章编号： 随着社会的发展城市房屋的建设和城镇化的快速步伐，建筑能耗在总能耗中所占的比例越来越大，给建筑能耗带来了巨大的压
暖通空调专业-毕业设计外文翻译
Refrigeration System Performance using Liquid-Suction Heat Exchangers S. A. Klein, D. T. Reindl, and K. BroWnell College of Engineering University of Wisconsin - Madison Abstract Heat transfer devices are provided in many refrigeration systems to exchange energy betWeen the cool gaseous refrigerant leaving the evaporator and Warm liquid refrigerant exiting the condenser. These liquid-suction or suction-line heat exchangers can, in some cases, yield improved system performance While in other cases they degrade system performance. Although previous researchers have investigated performance of liquid-suction heat exchangers, this study can be distinguished from the previous studies in three Ways. First, this paper identifies a neW dimensionless group to correlate performance impacts attributable to liquid-suction heat exchangers. Second, the paper extends previous analyses to include neW refrigerants. Third, the analysis includes the impact of pressure drops through the liquid-suction heat exchanger on system performance. It is shoWn that reliance on simplified analysis techniques can lead to inaccurate conclusions regarding the impact of liquid-suction heat exchangers on refrigeration system performance. From detailed analyses, it can be concluded that liquid-suction heat exchangers that have a minimal pressure loss on the loW pressure side are useful for systems using R507A, R134a, R12, R404A, R290, R407C, R600, and R410A. The liquid-suction heat exchanger is detrimental to system performance in systems using R22, R32, and R717. Introduction Liquid-suction heat exchangers are commonly installed in refrigeration systems With the intent of ensuring proper system operation and increasing system performance.Specifically, ASHRAE(1998) states that liquid-suction heat exchangers are effective in: 1) increasing the system performance 2) subcooling liquid refrigerant to prevent flash gas formation at inlets to expansion devices 3) fully evaporating any residual liquid that may remain in the liquid-suction prior to reaching the compressor(s) Figure 1 illustrates a simple direct-expansion vapor compression refrigeration system utilizing a liquid-suction heat exchanger. In this configuration, high temperature liquid leaving the heat rejection device (an evaporative condenser in this case) is subcooled prior to being throttled to the evaporator pressure by an expansion device such as a thermostatic expansion valve. The sink for subcooling
暖通空调毕业设计(论文)任务书解答
毕业设计（论文）任务书 毕业设计（论文）题目：某市某综合楼空调系统设计 系别能源与动力学院班级建环本121/122 学生姓名___________________ 学号 ________________________ 指导教师________ 职称_______________________ 毕业设计（论文）进行地点：校内 _______________________ 任务下达时间：2015 年12 月24 日 起止日期：2016年3月1日起——至2016年6月日止 教研室主任_________________ 年月日批准 1、论文的原始资料及依据:
（一）题目来源：某市某综合楼建筑结构图 （二）设计主要技术参数 （1）土建资料 详见建筑图纸。 （2 ）气象参数：根据本市的气象资料确定； （3 ）建筑参数： 外墙体结构：根据地区自行选定，如S =370 m m红砖，内外抹灰20mm 屋面：根 据地区自行选定，如200mm 厚混凝土板加12.5mm 厚加气混凝土保温层。 外窗：根据地区自行选定，如标准玻璃的单层钢窗，全部挂淡色窗帘，（4）室内空调设计参数：温度t n=26C； 湿度? n=60% 风速不大于0.3 m/s 。 （5）照明容量：40W/m （6）房间人数：0.5人/m2，群集系数0.92 （三）设计主要技术关键 正确进行空调负荷和新风量的计算，确定出冷气方案，合理地布置管道，并进 行水力计算，合理选择及布置设备，做好气流组织。 2、设计（论文）主要内容及要求通过本次设计使学生系统地掌握空调系统设计的主 要方法和步骤，能根据实际情况合理确定空调方案，会计算空调系统的负荷量和新风负荷量，能合理布置管道和设备，了解空调设备的型式及用途，会进行设备的选型，合理进行气流组织，会计算水管、风道的阻力，选取水泵、风机等。使学生能把所学知识灵活运用到实际当中去，让理论与实际相结合，为学生毕业以后的工作打下坚实基础。 主要内容： 空调系统的设计 1）、由建筑物所在地区确定室内外气象参数； 夏季室内外设计计算参数；室内温度、湿度、风速、新风量等参数。 (2)、空调房间热湿负荷计算；
工商银行杭州支行办公楼空调工程设计暖通空调毕业设计论文
中国工商银行杭州支行办公楼空调工程设计
毕业设计（论文）原创性声明和使用授权说明 原创性声明 本人郑重承诺：所呈交的毕业设计（论文），是我个人在指导教师的指导下进行的研究工作及取得的成果。尽我所知，除文中特别加以标注和致谢的地方外，不包含其他人或组织已经发表或公布过的研究成果，也不包含我为获得及其它教育机构的学位或学历而使用过的材料。对本研究提供过帮助和做出过贡献的个人或集体，均已在文中作了明确的说明并表示了谢意。 作者签名：日期： 指导教师签名：日期： 使用授权说明 本人完全了解大学关于收集、保存、使用毕业设计（论文）的规定，即：按照学校要求提交毕业设计（论文）的印刷本和电子版本；学校有权保存毕业设计（论文）的印刷本和电子版，并提供目录检索与阅览服务；学校可以采用影印、缩印、数字化或其它复制手段保存论文；在不以赢利为目的前提下，学校可以公布论文的部分或全部内容。 作者签名：日期：
学位论文原创性声明 本人郑重声明：所呈交的论文是本人在导师的指导下独立进行研究所取得的研究成果。除了文中特别加以标注引用的内容外，本论文不包含任何其他个人或集体已经发表或撰写的成果作品。对本文的研究做出重要贡献的个人和集体，均已在文中以明确方式标明。本人完全意识到本声明的法律后果由本人承担。 作者签名：日期：年月日 学位论文版权使用授权书 本学位论文作者完全了解学校有关保留、使用学位论文的规定，同意学校保留并向国家有关部门或机构送交论文的复印件和电子版，允许论文被查阅和借阅。本人授权大学可以将本学位论文的全部或部分内容编入有关数据库进行检索，可以采用影印、缩印或扫描等复制手段保存和汇编本学位论文。 涉密论文按学校规定处理。 作者签名：日期：年月日 导师签名：日期：年月日
暖通专业英语论文
Journal of Heat Transfer, Vol. 125, No. 2, pp. 349–355, April 2003 ?2003 ASME. All rights reserved. Up: Issue Table of Contents Go to:Previous Article | Next Article Other formats:HTML (smaller files) | PDF (297 kB) The Effects of Air Infiltration on a Large Flat Heat Pipe at Horizontal and Vertical Orientations M. Cerza B. Boughey US Naval Academy, Mechanical Engineering Department,Annapolis, MD 21402 Received: July 12, 2001; revised: May 13, 2002 In the satellite or energy conversion industries flat heat pipes may be utilized to transfer heat to the thermal sink. In this investigation, a large flat heat pipe, 1.22 m×0.305 m×0.0127 m, fabricated from 50 mil Monel 400metal sheets and Monel 400 screens was videographed at horizontal and vertical orientations with an infrared video camera. The heat pipe evaporator section consisted of a 0.305 m×0.305 m area (one heated side only) while the side opposite the heated section was insulated. The remaining area of the heat pipe served as the condenser. In the horizontal orientation the heated section was on the bottom. In the vertical orientation the evaporator was aligned below the condenser. The sequence of photographs depicts heat inputs ranging from 200 W to 800 W, and the effect of air infiltration on heat pipe operation for both orientations. For the horizontal orientation, the air is seen to recede towards the small fill pipe as the heat input is increased. For the vertical orientation, the air and water vapor exhibit a buoyant interaction with the result that the air presence inhibits heat transfer by rendering sections of the condenser surface ineffective. The effects depicted in this paper set the stage for future analytical and experimental work in flat heat pipe operation for both normal and variable conductance modes.
暖通空调工程设计方法与系统论文
《暖通空调工程设计方法与系统》课程论文 学院：土木工程学院 专业：建环101 姓名： 学号：201011013 任课教师： 二〇一三年十二月
暖通空调设计方法的研究 邓玉梅 E-Mail: 摘要: 随着人们生活水平的提高,大家对室内环境品质也越来重视。空调虽然能够为人 们提供舒适的工作环境和生活环境，但是空调工作时所消耗的能源却是相当巨大的。本文 对暖通空调进行概述，对一些建筑采暖通风空调系统设计和系统特点进行研究，从而提出 暖通空调工程的优化设计方法。 关键词：暖通空调设计；优化；研究 Research on HV AC design method Deng Yumei Abstract: As people living standard rise, people are more attention to the indoor environment quality.Air conditioning even though it can provide people with a comfortable working and living environment, but the energy consumed by the air conditioning work is quite huge. In this paper, an overview of the HV AC, building on some of the HV AC system design and system characteristics were studied in order to optimize the design method proposed HV AC engineering. Keywords: HV ACdesigning; optimization; research 1. 引言 随着科学的进步，人们对于暖通系统设计问题不断进行研究和探讨，其中缘由不仅是因为新时期社会发展对于建筑工程的要求不断提高，同时也是为了满足人们所必需的物质生活条件。供暖环境以及条件的不同，会导致不一样的暖通系统的具体设计方案。在实际施工中，暖通系统的设计会受到各种因素制约，从而导致各种不同的问题。而许多的设计工作者缺乏对于问题的总结，可能会导致不同的设计方案出现同样的问题，或许这些问题的出现正是由于某些设计细节的欠妥导致。细节决定成败，希望通过本文能给各位暖通设计工作者以一定的启发，为行业的发展以及规范贡献自己的微薄的力量。 2. 暖通空调工程设计方法
暖通空调专业论文
【tips】本文由李雪梅老师精心收编，值得借鉴。此处文字可以修改。 暖通空调专业论文 暖通空调专业简介 我所学专业是建筑环境与设备工程。一开始对此专业毫不了解，通过对各种专业课的学习，逐渐了解了该专业的主要研究领域。本专业培养具备室内环境设备系统及建筑公共设施系统的设计、安装调试、运行管理及国民经济各部门所需的特殊环境的研究开发的基础理论知识及能力，能在设计研究院、建筑工程公司、物业管理公司及相关的科研、生产、教学等单位从事工作的高级工程技术人才。 主要课程有：工程热力学、传热学、流体力学、建筑环境学机械设计基础、自动控制原理、流体输配管网、热质交换原理与设备、建筑给排水工程、建筑电气、空调技术、制冷技术、供热工程、设备自动化、锅炉及锅炉房设备、工业通风、建筑设备自动化、建筑电气、高层民用建筑空调设计、燃气工程、建筑设备工程预算等。其中暖通方向是发展较为完备并且十分重要的区域。在北方，冬季需要供暖，涉及暖通。 暖通在学科分类中的全称为供热供燃气通风及空调工程，包括：采暖、通风、空气调节这三个方面，从功能上说是建筑的一个组成部分。暖通的英文缩写HVAC(Heating,Ventilating and Air Conditioning)。 暖通空调是分户的中央空调，中央空调它最大特点,是能够创造一种舒适的室内环境。而家居一般的分体的空调，它只能解决冷暖问题，而解决不了空气处理过程。现在，有了暖通空调就不一样了。 现在这个空气处理过程它有以下这些过程：首先是空气进来以后，除了引进新风以外，可以把空气进行冷却处理，然后就进行过滤处理，过滤处理以后，增加了几大特点：第一就增加电子除尘器.，它主要可以捕捉非常小的颗粒的灰尘，一般来讲它可以捕捉一个微米的灰尘，而这个灰尘的范围
暖通空调设计正毕业论文设计
北京市某饭店通风空调设计 摘要本设计为北京某十层饭店空调工程设。该楼的工程概况为：总建筑面积约13132m２，高37.4m, 地上十层，地下一层。 空调设计中，一至三层的大空间（大堂、西餐厅、宴会厅等）采用全空气一次回风的空气处理方案。空气处理机组采用超薄吊顶式空气处理系统。其余空调房间（中餐厅、客房、贵宾房等）采用风机盘管加新风系统。新风由设置在走廊内的吊顶新风机组处理后送入各房间。 在冷负荷计算的基础上完成主机和风机盘管的选型，并通过风量、水量的计算确定风管路和水管路的规格，并校核最不利环路的阻力和压头用以确定新风机和水泵。 空调用制冷机房设在地下室，选用两台螺杆式冷水机组。夏天使用冷水机组提供的712℃的冷水。水管路采用两管制。 关键词：空调设计，全空气系统，风机盘管系统，冷水机组
Design of Ventilating and Air Conditioning for restaurant in Beijing A bstract The air conditioning engineering of one Hotel with ten layers in Beijing was designed. The engineering general situation of the residence's floor is:Total building area roughly 13132 m２, the ground 10 layer, underground 1 layer In air conditioning design, 1F and 3F big spaces ( great -style restaurant, banquet ) use concentrated all-air system. The air processing unit is microtome-ceil air system. Other air conditioned rooms (example Chinese dinner service, guest room, VIP Room and so on) use CFU and all-fresh air system, the outside air processes by new atmosphere unit which establishes in ceiling, and then sends in to various rooms. The main-machine and fan coils’choice were based on the calculation of cold-load. And through the numeration of blast volume and water flux，the standard of air duct and water pipe was determined. The most disadvantage resistance and pressure of the loop-road were checked up to ensure the machine of fresh-air and water pump. The Air conditioning refrigeration engine room is located in the basement, Selecting two screw rods types cold water unit, it uses 712 ℃ cold water which the cold water unit provides in summer. The water supply uses two pipelines. Key word:Air conditioning design, entire air system, air blower plate tube system, cold water unit. 设计说明书 1 工程概况 1.1.设计依据 1.1.1设计原始资料 设计对象所在地：北京市某饭店 土建资料：本大楼是一个具备餐饮、客房等功能的建筑，总建筑面积为13132平方米，建筑高度为37.4米,地下室深4m。