空调设计外文翻译---印度暖通空调与冰箱工业走向世界

空调设计外文翻译---印度暖通空调与冰箱工业走向世界
空调设计外文翻译---印度暖通空调与冰箱工业走向世界

India HVAC&R Goes Global

The total market size in 2008 for the HVAC&R industry in India was approximately $2.5 billion. That year, India produced roughly 5 million refrigerators, 2.5 million room air conditioners, packaged air conditioners of various capacities, and packaged chillers of reciprocating, scroll, screw and absorption types.

Other HVAC&R products manufactured in India include air-handling units, fan-coil units, refrigeration systems for cold rooms and freezer rooms; low-temperature brine chillers for industry; and commercial refrigeration equipment for food stores and supermarkets. The following stories describe some Indian companies that are making their mark internationally.

Heat Pumps in Denmark

Thermax absorption heat pumps and chillers are finding increasing acceptance with European and U.S. clients that want energy-efficient equipment. Businesses are demanding systems that can reduce carbon emissions and help cope with global warming.

Over the last decade, Thermax has worked in optimizing energy use in Denmark by installing absorption heat pumps for centralized heating, which is a reverse application of centralized cooling with absorption chillers. Hot water from a central generation facility is used for space heating in town buildings. The heating companies reduce the energy intensity at generating centers by tapping low-grade heat from other sources such as geothermal heat from sandstone aquifers or waste heat from town incinerators.

Since its first installation in 1999, Thermax absorption heat pumps are operating in several district heating installations. Recently, the company is fulfilling an order for a 3.4 MW steam absorption chiller to be installed in downtown Copenhagen as part of a district cooling project. The total capacity of the plant is 15 MW, which uses the output of the Thermax chiller, free cooling using seawater and ammonia chillers. The plant will save approximately 2,500 tons (2268 Mg) of carbon dioxide per year.

In Spain, Thermax has commissioned chillers in hotels and office buildings that run on water heated by solar panels. Clients elsewhere in Europe also use Thermax chillers that work on exhaust gas from fuel cells or excess steam from old boilers that use wood waste.

In the United Kingdom, large retailer Tesco has installed Thermax chillers at two

stores as part of a plan to reduce its carbon footprint through various measures, including using energy-saving devices. The chillers use water from the cogeneration system that Tesco has installed for generating power.

In the United States, a 1,100 kW test engine installed at a plant of a leading plastics manufacturer in Ohio generated a great deal of waste heat. Thermax harnessed this waste heat to drive an absorption chiller. Waste heat is converted to energy savings as chilled water from this system is used for process cooling in the plant. More than 150 business customers in the United States are gaining from energy profits and green reputations by installing Thermax chillers. Recently, the University at Albany-State University of New York,replaced its old, inefficient cooling system with a 1,400 ton (4924 kW) chiller that works on hot water. The university has gained 35% energy efficiency with substantial savings in operating and maintenance costs. The Henry Ford Museum in Detroit and Colorado School of Mines in Golden, Colo., also have Thermax chillers.

Under a recent strategic agreement, Trane, a leading global indoor comfort systems and service provider for the North American market, will source and distribute Thermax chillers.

Heat Wheels in Australia

What do a hospital in Australia, a university in Florida, a high-tech commercial building in Dubai, a church in Brazil, the Olympic stadium and airport in Beijing and an indoor swimming pool in Tasmania have in common? The indoor air quality provided by DRI, Desiccant Rotors International, is a heat wheel manufacturer in Delhi. A flagship company of the Pahwa Enterprises, it is the largest privately held HVAC group in India.

King Edward Memorial Hospital (KEM) in Perth, Australia, is a renowned, state-owned health-care provider for women,with more than 400 beds and a large staff of specialists. KEM is geared to provide the highest standards of health care and patient servicing, where indoor air quality plays a vital role. The original HVAC installation carried out 30 years ago was ahead of its time. It incorporated heat recovery wheels (HRW) to save energy and provide better indoor air quality. The wheels were imported from the United States and the aluminum substrate was supplied in 20 segments. With the passage of time, the substrate disintegrated and fell off in all four wheels. As a result, the wheels became non-operational and KEM Hospital and the authorities had a tough time finding a supplier that could supply new

wheels in sections that could pass through the doorways without breaking down the walls of the AHU room. They also had difficulty finding an installer who could dismantle the old steel frames, also in sections, so the building could remain intact.

Fortunately, DRI, through its Australian agent agreed to custom manufacture a five-segment wheel in its factory, ship it to the site, install and commission the new wheel, all under the supervision of a local consultant. With the completion of the retrofit project, KEM Hospital’s indoor air quality improved. Among other projects DRI has done are the Beijing Olympics; Pacific Controls, which is Dubai’s first green building; and the second tallest building in China, which is the 450 m (1,476 ft) tall Nanjing Green Land Square, which are all equipped with Ecofresh wheels produced in Delhi.

Other DRI facts:

? Largest global producer of enthalpy wheels;

? World’s only AHRI and Eurovent certified rotors manufacturer;

? Integrated rotor manufacturing facility;

? World-class rotor (enthalpy as well as desiccant) test facility;

? Sales network spread over India, U.S., Brazil, Europe, UAE,Turkey, Africa, China, Malaysia, Philippines, Japan, Korea and Australia; and

? Awarded AHRI certification performance award for achieving a 100% success rate for seven consecutive years.

Heat Pumps in Europe

Blue Star began exporting drinking water coolers to the Gulf countries in the Middle East as early as 1974. The large stainless steel storage tank design of the coolers was suitable for India and the Gulf countries where city water supply was intermittent. Although local buyers initially resisted buying Blue Star coolers, with improved quality and timely deliveries the company’s sky-blue water coolers became visible at every mosque and school in Dubai and Kuwait.

In the early 1990s, Blue Star made large investments in new plant, machinery, technology and R&D for HVAC&R products to handle the growing market within the country. In 1999, the company started exporting ducted air conditioners of up to 7.5 ton (26 kW) capacity, as well as window and split room ACs. A substantial part of these products were specially designed for an American company; prototypes were built and tested in India and the U.S., to suit the needs of the U.S. manufacturer for the Middle East market. Labeled with the U.S. brand name, but with the words “Made

in India,” customers no longer hesitated to buy such products. As many as 170,000 unitary products were sold within a few years.

Buoyed by this success in the Middle East, the American company decided to enter the European market with its brand and once again chose Blue Star to design ductable heat pumps for this market, using R-407C refrigerant (instead of R-22 in the Middle East) with a sleek appearance, compact footprint, stringent safety and noise requirements. Eleven thousand units have been shipped to Europe.

With $500,000 in exports in 1999, today the company has nearly $25 million in exports and ships drinking water coolers, ducted split ACs and heat pumps, and air-handling units, fan coil units, scroll chillers, screw chillers, close control packaged ACs, as well as special units for the telecom market. A large number of distributors and business partners help the company to cater to the growing market in various neighboring countries. With an increased R&D spending, Blue Star plans to ship more products to the international market.

Coolers in Europe

Air-cooled fluid coolers (ACFC) are as the radiator in your car, helping to keep the engine cool, by circulating cooling water through the engine jacket and the radiator. They are larger in cooling capacity and are used in captive power plants to cool the diesel engines or gas turbines that drive the electric generators.

With scarcity of water and shortage of electric power in most parts of the developing world, International Coil Ltd (ICL) of Delhi has developed ACFCs to cool the jackets of diesel engines or gas turbines running generators in 8 MW power plants or larger capacity with multiples of 8 MW, used by industry to run their plants, instead of cooling towers, which consume large amounts of water.

With hundreds of installations of ACFCs in India, millions of cubic meters of water are being saved, proving them to be a good environment-friendly solution. Certified by AHRI, these ACFCs can also be supplied with Heresite coating to reduce corrosion in saline atmospheres. Internationally reputable manufacturers of power plants running on diesel engines or gas turbines including Rolls Royce of England, MAN of Germany, Wartsila of Finland and Cummins of the U.S., have signed OEM agreements with ICL to use ACFCs on their supplies of generators to most parts of the developing world.

MEP Contracting in Middle East

In the early 1970s, the Middle East embarked on ambitious plans of

modernization and building construction.

With a small domestic population, the region depended heavily on construction labor from the Indian subcontinent, which is only a few hours away by air. Arab and European companies with offices in the Gulf lured experienced Indian HVAC engineers with salaries three to four times higher than salaries prevailing in India, free company cars, petrol cheaper than water and no income tax. Voltas, being one of the largest HVAC companies, suffered crippling manpower losses that took time to replenish with the help of freshly graduated engineers.

In a way, these events turned out to be a blessing in disguise, because Arab employers were so impressed with Indian engineering skills that many of them started doing business with Voltas in joint ventures, which took on large HVAC contracts initially and then went in for complete electro-mechanical projects, including electrical and plumbing.

HVAC for Queen Mary II

The experience gained from work in the Gulf States and contacts established with international suppliers all over the world of equipment and accessories, including piping, sheet metal, and insulation, led to Voltas’s ambition to take on the world.

So, Voltas bid and won contracts in 30 countries and three continents, including the HVAC contract for Hong Kong Airport and the largest luxury liner ever built, Queen Mary II, while it was under construction in a French port.

The company is part of the $62.5 billion Tata Group and is the number two air-conditioner brand in the country. The firm manufactured the first room air conditioner in 1954. It has overseas offices in Dubai, Abu Dhabi, Qatar, Bahrain, Singapore and Hong Kong.

Author:Hiru M. Jhangiani

Nationality:India

Originate from:Air Conditioning and Refrigeration Journal of 24 (2004) 55-60

印度暖通空调与冰箱工业走向世界

2008年,印度的暖通空调与冰箱工业的市场总量为25亿美元。那一年,印度大约生产了500万台冰箱,250万台室内空调,组装出多种功能的空调和往复,滚动,螺杆,吸收等类型的冷却装置。

在印度,其他类型的暖通空调与冰箱产品包括冷藏室和冷冻室的空气处理机组、风机盘管机组、制冷系统;工业用低温盐水机组,食品商店和超级市场的商业用制冷设备。下面的几个故事描述了一些正在使自己的品牌走向国际的印度公司。

丹麦的热汞

契马黑吸收热汞越来越多地被那些想要获得节能设备的欧洲和美国客户的认可。现在的企业都在要求暖通空调和制冷设备能减少碳的排放量,以应对全球性变暖。

在过去的十年里,契马黑曾在丹麦通过为集中供暖系统安装吸收热泵的方法优化能源的使用,这是用吸收式制冷机集中冷却的反向运用。中央系统设施中的热水被用于城市建筑物的室内供暖。供热公司通过像砂岩含水层的地热能源或城镇焚化炉的废热等其他热能来源来供应低品质的热能的方式来降低生产中心的能源强度。

自1999年的首次安装以来, 契马黑的吸收热泵目前正运行于几个地区的供热装置中。最近,该公司正在完成一笔3.4兆瓦的蒸汽吸收式制冷机组订单,这个机组安装在哥本哈根市中心,作为地区冷却项目的一部分。设备总容量为15兆瓦,使用的是契马黑的冷却装置输出,通过海水和氨冷却装置达到免费冷却。该工厂将每年节省约2500吨(2268兆克)的二氧化碳排放。

在西班牙, 契马黑的冷却装置已经委托装入了用太阳能供应热水的酒店和办公大楼。欧洲其他地区的客户也用契马黑冷却装置来排出燃料油箱内的废气或旧锅炉中的过量蒸汽以避免木材的浪费。

在英国,大型零售商乐购在其中的两家商店安装契马黑冷却装置作为通过各种方法来减少碳排放量这一计划的一部分,包括用节能装置。冷却装置用的是用于乐购发电的冷热电联产系统产生的水。

在美国,一台1100千瓦的测试引擎安装在一间俄亥俄州领先的塑料制造商的工厂内,这样的工厂会产生大量的废热。契马黑利用这个余热作为吸收式制冷机的动力。余热转化为能量储蓄是因为来自这个系统的冷冻水被用于冷却工厂生产过程中产生的热。超过150个美国的客户通过安装契马黑冷却系统来获得能源上的利益和绿色环保的良好声誉。最近,奥尔巴尼洲大学纽约城市学院用一个有1400吨(4924千瓦)的热水冷却装置来代替旧的、低效率的冷却系统。这所大学在

操作和维护成本上的实质性节约能够达到35%的能源效率。在底特律的亨利福特博物馆和的地雷和科罗拉多州金山的科罗拉多州矿业学院也有契马黑冷水机。

在最近的战略协议中,在北美市场被誉为全球领先的室内舒适系统和服务提供商的特灵空调会生产提供契马黑冷水机。

澳大利亚的热车轮

澳大利亚的医院、佛罗里达州的大学、迪拜高科技的商业建筑、巴西的教堂、北京的奥林匹克竞技场和机场、塔斯马尼亚岛的室内游泳池,这些建筑它们有什么共同特点呢?都是由DRI(国际干燥转子)—一个德里的热车轮制造商来提供的优质室内空气。它是Pahwa集团旗下的公司,印度最大的民间暖通空调集团。

在澳大利亚佩思的爱德华国王纪念医院(凯恩美),是一家非常著名且专门为女性提供服务的国有医疗机构,拥有超过400个床位和许多专家。凯恩美提供最高水准的医疗保健和患者服务,因此室内空气质量起着至关重要的作用。原来的暖通空调30年前就超过了它的使用时间。它采用热回收车轮(HRW)来节约能源和提供更高质量的室内空气。转轮是从从美国进口的,铝基板由20块组成。随着时间的推移,基体瓦解四个轮子都开始下降。结果,转轮开始不工作,凯恩美医院和当地政府经过了一段艰难的去寻找能提供新的轮子的供应商的时期,且要求这些轮子能被分成几个部分通过门廊,从而不必打通空气调节装置室的墙。同样,寻找到一个能够分几个部分拆除旧的钢结构来确保建筑保持完好的安装工人也十分困难。

幸运的是, 国际干燥转子通过在澳大利亚的代理公司,同意在他的工厂定制一个五部分的机轮,并用轮船运到澳洲,安装和调试新的机轮都是在当地的顾问的监督下进行的。由于新转轮的安装完成,凯恩美医院的室内空气品质有了显著改善。其他DRI已经完成项目有北京的奥运会馆,迪拜的第一个绿色建筑——太平洋控股;中国第二高建筑,450米(1476英尺)高的南京绿地广场,这些都配置有德里生产的自动净化车轮。

其他DRI事迹:

?全球最大的焓轮生产商;

?世界上唯一的AHRI和EUROVENT双重认证的转子制造商;

?综合转子制造设备;

?世界级的转子(焓以及除湿)测试设备;

?销售网络覆盖印度、美国、巴西、土耳其、阿拉伯联合酋长国、欧洲、非洲、中国、马来西亚、菲律宾、日本、韩国和澳大利亚;

?授予AHRI认证的连续7年实现100%成功率。

欧洲的供暖装置

早在1974年,蓝星公司就开始出口饮用水冷却器给中东地区的海湾国家。大型不锈钢储罐设计冷却器很适合印度与海湾国家,那里的城市供水是断断续续的。尽管当地的购买者最初抵制购买蓝星冷却器,但质量的改进和及时的交货,使这个公司的天蓝冷水器在迪拜、科威特的清真寺和学校变得随处可见。

在20世纪90年代初,蓝星公司在空调制冷领域的工厂、设备、技术和研发方面都做出了巨大的投资,以此来应对这不断增长的国内外市场需求。1999年,公司开始出口管机空调达到7.5吨(26千瓦)的水平,与自动控制窗口和活动房间一样。这些产品中很大一部分是专为一家美国公司设计的;设备的原型在印度和美国完成建造和测试。以适应美国制造商在中东市场的需求。贴上美国的品牌名称,但却写着“印度制造”,顾客在买这样的商品时将不会再犹豫。在几年之内,多达17万件统一的产品已出售。

值得一提的是,这次在中东的成功使那些美国公司决定进军欧洲市场,并且再次选择蓝星来为这次的市场设计进口热泵。这次的设计采用R-407C这种具有雅致的外观、紧凑的足迹、严格的安全和噪音控制要求的制冷剂(而不是在中东的R-22)光滑形状、严格的安全及噪声的要求。11万件这样的产品已销往欧洲。

从1999年的50万美元出口额开始,到今天,该公司已拥有近2500万美元在出口和装载的应用水冷却器、管机分离空调和热泵、空气处理机组、风机盘管机组、往复式冷水机、螺杆冷水机、装载关闭控制空调,以及为电信市场制造的特殊机组。大量的分销商和商业伙伴帮助该公司满足了众多周边国家日益扩大的市场需求。随着在研发资金投入方面的增加,蓝星公司计划将为国际市场出口更多的产品。

欧洲的冷却机

流动风冷却器(ACFC)在你的汽车里是作为一种散热器,通过在发动机汽缸和散热器两者之间的不断循环冷却,来确保发动机保持在一定温度内。他们在冷却能力上有着更大的优势,可用于自保电厂中冷却驱动电动发电机的柴油机或燃气轮机。

由于在发展中国家,许多地区都存在着缺乏水和缺乏电力地情况,因此在德里的国际线圈有限公司(ICL)已经开发了流动风冷却器来冷却柴油机引擎或燃气轮机,并创造出发电机组在8兆瓦或是8兆瓦的倍数的更大容量的电厂,这些电力在工业上被用于工厂运作,而不是需要消耗大量水的冷却塔。

由于在印度有着大量的流动风冷却器设施,百万立方米的水被节约下来,这也证明他们是一个解决环境友好问题的好方法。经过AHRI的认证,这些流动风冷却器也可以配置上赫尔斯特酚醛塑料涂层以减少盐碱地区的腐蚀。国际著名发电机制造商包括英国的罗尔斯·罗伊斯,德国的MAN,芬兰的瓦锡兰和美国的康

明斯,已经和ICL签署了OEM协议,在他们的柴油发动机或燃气涡轮机上的配备流动风冷却器,以供给大部分发展中国家。

中东的机电合同

在70年代早期,中东走上了雄心勃勃的现代化和房屋建筑之路。

由于当地人口量少,该地区主要依靠印度来的劳动力来建设房屋,仅仅需要几个小时就可以空运过来。阿拉伯和欧洲的公司在海湾地区设有分公司和办事处,并开出高出印度平均薪资水平三四倍作为印度暖通空调工程师的工资,以及免费的公司车辆,汽油比水还便宜,且没有所得税。Voltas,是其中最大的一个暖通空调公司,遭受了严重的人力损失,不得不花时间去培养刚毕业不久的工程师。

在某种程度上说,这些事件竟然是因祸得福,因为印度工程师地技能给阿拉伯雇主留下了如此之深的印象,其中有很多人与Voltas开始做合资生意,这些合作起初大部分在暖通空调合同上,后来渐渐完善到完整的机电工程,包括电子和管道。为玛丽女王二世而设计的暖通空调

在海湾地区获得的工作经验和与全球各地包括管道、金属板和绝缘材料等设备与配件的国际供货商建立的联系促使Voltas的野心转向世界。

所以,Voltas参与竞标,并在30个国家和三大洲赢得了合同,其中包括为香港机场和在法国港口建造的那个时期最大的豪华客轮“玛丽女王二世”的暖通空调合同。

该公司是总资产达625亿美元的Tata集团的一部分,是国内排名第二的空调品牌。这家公司制造的第一个室内空调是在1954年。它海外的办事处有迪拜、阿布扎比、卡塔尔、巴林、新加坡和香港等国家和地区。

作者:Hiru M. Jhangiani

国籍:印度

出处:空调和制冷学报2004年第24期,第55-60页

浅谈工厂厂房的暖通设计

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文献综述 一、课题国内外现状: 1.美国中央空调发展现状: 美国的中央空调普及率较高,这与其良好的居住条件以及较高的生活水平是分不开的。美国是世界第一经济大国,人民生活水准较高,对居住的舒适性要求也较高,这些都促进了该国中央空调的普及使用。 美国的别墅型住宅具有宽敞、高大的特点,通常由中、高收入的家庭居住。由于其层高较大,具有足够的建筑空间用于布置风道,因此在美国,风管式系统在家用小型中央空调中所占的比重相当大。同时,由于美国居民对家用空调舒适性的要求较高,因此多采用有新风的风管式系统。目前,美国风管式系统的年产量约为600万台/年,占其家用空调产量的一半左右。 美国的公寓型住宅适合于中、低收入的人群居住,其家用空调的型式以窗式空调器为主,也有采用小区供冷/热水的,一般不使用家用小型中央空调。目前美国窗式空调器年产量约为600万台/年,占其家用空调产量的一半左右。 美国的中央空调的型式以风管式系统为主,其具体形式多种多样。风管式单元空调系统和风管式空调箱系统在美国的应 用都很广泛,此外,集成了燃气炉的家用小型中央空调系统在美国的应用也非常普遍。此种家用小型中央空调系统在供冷季由制冷机组提供冷量,在供热季由燃气炉提供热量,对室内回风和新风进行处理,消除房间空调负荷,同时也可以满足家庭生活热水的需求。 2.日本小型中央空调发展现状: 与美国以风管式系统为主的特点不同,日本的家用空调走的是一条"氟系统"为主的发展道路,从窗式空调器到定速分体式空调器,再到变频分体式空调器。同样,日本的家用小型中央空调也以冷剂式空调即VRV系统为主。 在世界冷剂式空调行业中,在二十世纪九十年代以前,60%的市场被日本所占有,并且在设备开发和控制技术上都处于世界最前沿。这为日本发展VRV系统提供了技术保证。同时,日本国土面积小而人口众多,人口密度非常大,其住宅多属于高密度住宅,建筑结构较为紧凑。一般层高均较低,不适合于布置需要占用较大层高的风管式空调系统。而且日本是个国内资源匮乏的国家,其能源消耗

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中文3696字 本科毕业论文外文翻译 出处:Infosys Strategic Vision 原文: Insights from Banking Simple By Ashok Vemuri Introduction “A simpler way of banking.We treat with you respect. No extraneous features. No hidden fees.” For the unini tiated, this is the mantra of BankSimple, a Brooklyn-based startup which has positioned itself as a consumer-friendly alternative to traditional banks. BankSimple pushes a message of user experience—sophisticated personal finance analytics, a single “do-it-all” card, superior customer service, and no overdraft fees.Though branchless and primarily online-based, BankSimple is also planning to provide some traditional customer service touches, including phone support and mail-in deposits. Interestingly, BankSimple will also likely not be a bank—at least not in the technical, FDIC sense of the word. Rather, BankSimple’s strategy is to be a front-end focused on the customer experience. The back-end core “bank” component will be FDIC-insured partner banks. Unfettered by years of IT investments and entrenched applications, BankSimple’s team has the freedom to build an innovative, user-friendly online interface, customer service program, and the associated mobile and social bells and whistles that more and more consumers are demanding. One way to look at it is as a wrapper insulating the consumer from the accounting, compliance, and technology challenges that many banks face. Like personal finance sites https://www.360docs.net/doc/8b7828816.html, and Wesabe before it, BankSimple is looking to tap into a perceived gap between what major banks provide and what consumers want. A recent survey by ForeSee Results and Forbes found that consumers view online banking as more satisfying than banking done offline. Though good news for the industry as a whole, the survey also found that the five largest banks in the country scored the lowest in the study. Cheaper and more customer friendly, digital banking is the future—but many consumers are finding it is better done with credit unions, community banks, and (down-the-road) startups like BankSimple. As you read, significant investments are being made by banks to improve their online, mobile, and IVR customer-friendliness. Major banks are embracing these channels, and customer satisfaction will likely improve over time. Even so, startups like Bank- Simple should be viewed as a learning opportunity. Their ideas are disruptive and often highlight pain points that need to be addressed. BankSimple’s first two stated philosophies are a good place to start: “A simpler way of banking” and “We treat you with respect.”

浅谈建筑环境与暖通空调能耗 外文资料翻译

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暖通空调施工方案

通风空调工程施工方案1 工艺流程 1.1 通风工程施工工艺流程

2 风管制作 2.1 材料要求 (1)所使用板材、型钢材料应具有出厂合格证书或质量鉴定文件。 (2)制作风管及配件的镀锌钢板厚度应符合施工验收规范规定。 (3)风管法兰规格按下表选取。

2.2 操作工艺 (1)工艺流程 (2)板材下料后在轧口之前,必须用倒角机或剪刀进行倒角工作。 (3)板材剪切必须进行下料的复核,以免有误,按划线形状用机械剪刀和手工剪刀进行剪切。 (4)剪切时,手严禁伸入机械压板空隙中。上刀架不准放置工具等物品,调整板料时,脚不能放在踏板上。使用固定式震动剪两手要扶稳钢板,手离开刀口不得小于5cm ,用力均匀适当。 (5)金属薄板制作的风管采用咬口连接、铆钉连接、焊接等不同方法。 咬口连接类型可采用平咬口和角咬口,咬口宽度和留量根据板材厚度而定。 钢板厚度 平咬口宽 角咬口宽 0.7以下 6--8 6--7 0.7—0.82 8--10 7--8 0.9--1.2 10--12 9--10 可选用:对接焊、搭接焊、角缝、搭接角缝等几种形式。 领料 展开下料 剪 切 倒 角 咬 口制作 风 管折方 成型 方法兰下料 焊 接 冲孔打眼 找 平找正 打 孔打眼 划 线下料 圆法兰卷圆 铆法兰 翻 边 检 验

铆钉连接时,必须使铆钉中心线垂直于板面,铆钉头应把板材压紧,使板缝密合并且铆钉排列整齐、均匀。板材之间铆接一般中间可不加垫料,设计有规定时,按设计要求进行。 (6)咬口连接根据使用范围选择咬口形式。 (7)咬口时手指距滚轮护壳不小于50mm,手不准放在咬口机轨道上,扶稳板料。 (8)咬口后的板料将画好的折方线放在折方机上,置于下模的中心线。操作时使机械上刀片中心线与下模中心线重合,折成所需要的角度。 (9)折方时应互相配合并与折方机保持一定距离,以免被翻转的钢板或配件碰伤。 (10)法兰加工 矩形风管法兰加工:方法兰由四根角钢组焊而成,划线下料时应注意使焊成后的法兰内径不小于风管的外径,用型钢切割机按线切断。下料调直后放在冲床上冲铆钉孔及螺栓孔,孔距应符合施工验收规范要求。冲孔后的角钢放在焊接平台上进行焊接,焊接时用各规格模具卡紧。矩形法兰用料规格应符合施工验收规范规定。 (11)矩形风管边长大于或等于630mm其管段长度在1.2m以上均应采取加固措施。 (12)风管与法兰组合成形时,风管与扁钢法兰可用翻边连接;与角钢法兰连接时,风管壁厚小于或等于1.5mm时可采用翻边铆接,铆钉规格、铆孔尺寸见下表。 类型风管规格铆孔尺寸铆钉规格 方法兰120--630φ4.5φ4×8 800--2000φ5.5φ5×10 出10mm左右翻边量,管折方线与法兰平面应垂直,然后使用液压铆钉钳或手动夹眼钳用铆钉将风管与法兰铆固,并留出四周翻边。 (14)翻边应平整,不应遮住螺孔,四角应铲平,不应出现豁口,以免漏风。 (15)风管与小部件(短支管等)连接处、三通、四通分支处要严密,缝隙处应用密封胶堵严以免漏风。 3 风管及部件安装 3.1 材料要求 (1)各种安装材料应具有出厂合格证明书或质量鉴定文件及产品清单。 (2)风管成品不许有变形、扭曲、开裂、孔洞、法兰脱落、法兰开焊、漏铆、漏打螺栓眼等缺陷。 (3)安装的阀体、消声器、罩体、风口等部件应检查调节装置是否灵活,消声片、油漆层有无损伤。 (4)安装使用材料都应符合产品质量要求。 3.2 操作工艺 (1)工艺流程 (2)确定标高:按照设计图纸并参照土建基准线找出风管标高。 (3)制作吊架 标高确定后,按照风管系统所在的空间位置,确定风管支、吊架形式。

大空间工业厂房暖通空调设计与节能分析

大空间工业厂房暖通空调设计与节能分析 发表时间:2018-05-25T15:11:26.807Z 来源:《基层建设》2018年第8期作者:王利[导读] 摘要:由于我国大空间工业厂房的结构较为复杂,供暖、通风及空气调节与其他建筑存在较大差异,因此在对现代大空间工业厂房暖通空调进行设计时,应充分考虑到大空间工业厂房结构的特点。上海电子工程设计研究院有限公司上海 200083 摘要:由于我国大空间工业厂房的结构较为复杂,供暖、通风及空气调节与其他建筑存在较大差异,因此在对现代大空间工业厂房暖通空调进行设计时,应充分考虑到大空间工业厂房结构的特点。本文将结合实际情况对现代大空间工业厂房暖通空调的设计与节能进行分析,为我国现代大空间暖通空调设计提供有效方案。 关键词:大空间工业厂房;暖通空调;设计;节能;分析前言:现代大空间工业厂房是一种符合现代社会生活及人们生产生活需要的建筑形式,具有内部空间较大、面积较大的特点。随着可持续发展理念的深化,节能成为大空间工业厂房暖通空调设计需要考虑的重要因素,因此,相关的设计人员应针对大空间工业厂房的结构特点,对暖通空调进行设计并充分考虑到节能问题,使空调系统的运行在保证人居生活环境舒适度的同时降低运行成本,从而促进我国可持续发展。 1大空间工业厂房的特点随着时代的发展大空间工业厂房已成为现代社会的一种重要的建筑形式,从科学角度分析,大空间工业厂房具有高度高、体积大、室内面积大的建筑结构体系特点。大空间工业厂房体系在满足企业生产需要的同时,还给建筑施工带来了一定难度,由于大空间工业厂房有别于其他建筑,具有“空间较大、面积较大”的特点,因此在施工过程中,需对供暖、通风和空气调节等问题格外注意。随着时代的发展,人们对生活质量的要求越来越高,同时对居住环境也有了较高的要求,相关的设计施工人员应重视对供暖、通风和空气调节等问题的解决,以保证企业生产环境舒适度。暖通空调为解决供暖、通风和空气调节提供了良好的技术支持,在广泛使用暖通空调系统时应对该系统进行科学合理的设计并注意控制能耗。 2大空间工业厂房暖通空调设计中存在的问题及解决办法 2.1大空间工业厂房暖通空调设计中的难点(1)冷热负荷计算复杂。大空间工业厂房在冬季时主要依靠外墙、地面、屋顶等围护结构传热从而产生的负荷及冷风侵入负荷,因此在设计暖同空调室应全面考虑。在计算总冷热负荷时除了考虑外墙等围护结构传热产生的冷负荷,同时还应考虑人类活动及设备产生的负荷。 (2)复杂的暖通空调系统。通常情况下,大空间暖通空调系统都比较庞大,且需要各种冷量、风量、热量也较大。因此应对系统合理分区,以提高系统运行的安全性,同时缩小风道尺寸及管道规格,有效降低系统运行压力。在对暖通空调进行分区时应结合建筑功能分区,且要考虑各区流量压力是都的均衡和运行维护户是否便利,以达到分区的最大效果。(3)暖通空调设备的选择及布置。大空间公共建筑对室内的要求相对严格,因此暖通空调设备的选择及布置不仅要考虑设备的使用性能,还要对设备颜色、搭配、外形以及室内整体效果等综合因素进行考虑,在施工过程中应尽量将设备隐藏在角落或者装饰背景中。 2.2优化解决的方案暖通空调系统在运行时会产生大量热量,为保证空调设备科正常运行,必须将这些热量排室外,而这些设备通常又存在对热源的要求。此外,暖通空调系统可分为两种形式,分开式系统与闭合式系统。应采用有效措施将二者进行有机结合,从而设计出全新的空调系统。大空间工业厂房通常不会采用对流散热器,然而散热器具有安装简便、维护费用低等优点,施工单位应根据大空间工业厂房的使用性质,对散热器的规格型号进行合理的选择,通过利用散热器保证室内的基本温度,再利用其它供暖设备使温度达到要求标准。对于“冬暖夏凉”的大空间工业厂房,可对供暖、供凉设备进行可行性分析,以达到节约经费的目的。 3暖通空调节能设计 3.1暖通空调在节能设计过程中应遵守的原则随着科技化时代的发展,企业发展要求的质量在不断提高,同时对企业生产环境的舒适度也有了更高的要求,这些客观因素使得空调的使用率逐渐增加,在造成大量能源消耗的同时还对环境造成一定影响,因此,暖通空调设计师需在设计中使用节能技术,在进行节能设计时应遵守以下几点原则:第一,节能化。室内温度、空气湿度、气流速度等客观因素都会影响居住者对环境舒适度的判断,因此在设计暖通空调,应在节能的前提下充分考虑这些客观因素的影响,实现“节能”、“舒适”的和谐。第二,人性化。均匀加热系统可有效节约电能,在采用该系统时,应注意人性化原则,在节能的同时还要保证人居环境的舒适度。第三,科学化。应结合建筑设计、室内装饰,对暖通空调进行科学合理的设计。 3.2暖通空调在节能设计注意事项在暖通空调中使用节能技术应注意以下几点事项:第一,合理选择外部资源。在设计暖通空调时要根据更成所在地和能源供给情况,对市场中的各项材料进行对比从而选择出符合设计的外部资源,在满足技术要求的同时有效节约了资源。此外,还要考虑暖通空调系统能否利用浅层地能、太阳能、风能等绿色能源来代替或补充传统能源。第二,做好水力平衡设计,对室外暖通空调进行分区设计时应注意计算水平衡力,选择合适的平衡阀、节流阀等水力平衡装置,以满足水力平衡的要求,同时各部分水量、风量要满足区域压力要求,避免出现个区域之间工作效率不均匀现象。当局部压力不足时,可采用局部增压等补偿方式。第三,选择高效节能设备,在选择水泵、散热器、风机等设备时,应优先选择高效节能产品降低能源消耗。此外,还可以使用低温热泵机组等节能产品充分利用空调运行产生的热能。第四,对暖通空调设备运行、控制方式进行合理设计。在选择热水器、散热求、水泵等设备的型号时,合理搭配制冷供热设备的台数,同时根据负荷情况随时对运行设备数量进行调整,在保证暖通空调正常运行的前提下减少耗能。结语:综上所述,随着时代的发展大空间工业厂房已成为现代社会的一种重要的建筑形式,同时满足了企业对生产的需求。因此,相关设计师应做好大空间工业厂房暖通空调的设计工作,始终贯彻可持续发展理念,从而为企业提供良好的生产环境,同时有效节约我国能源,以保证我国社会经济可持续发展。参考文献:

外文翻译--浅谈建筑环境与暖通空调能耗

中文2300字 Shallow talk the building environment an air condition to can consume with the warm Summary: The research constructs environment, understanding a warm an air condition to carry output reason and influencing factor, can be more and reasonably put forward solve problem of method. Keyword: Constructing a warm of environment an air condition can consume Shallow talk the building environment an air condition to can consume with the warm The energy provided motive for the development of the economy, but because of various reason, the development of the energy is a usually behind in economy of development. In the last few years, the growth rate maintenance of citizen's total output value of China are in about 10%, but the growth rate of the energy only have 3% ~s 4%.Such situation's requesting us has to economize on energy. The comparison that constructs the energy depletion in the society always the ability consume compares greatly, the building of the flourishing nations' use can have to the whole country generally and always can consume of 30% ~s 40%;China adopts the town population of the warm area although only 13.6% that have national population, adopt warm use an ability but have a whole country and always can consume of 9.6%.Construct the economy energy is the basic trend of the building development, is also a new growth of[with] the contemporary building science technique to order. The necessity of the modern building constitutes a part of warm, the air condition realm has already received the influence of this kind of trend as well, warm the economy energy within air condition system is cause a warm the attention of the air condition worker, and aims at different of the adopt of energy characteristics and the dissimilarity building of the nation, region is warm, well ventilated, the air condition request develop a related economy energy technique .The research constructs environment, understanding a warm an air condition to carry output reason and

金融学毕业论文外文翻译中英文全

Improve the concept of financial supervision in rural areas1 Xun Qian Farmers in China's vast population, has some large-scale production of the farmers, but also survival-oriented farmers, huge differences between the financial needs of rural finance intermediation makes complex, together with agriculture itself is the profit low, natural and market risks high risk decision to weak agricultural industry characteristics, resulting in the cost of rural financial transactions is far higher than the city, also decided to organize the rural financial system in terms of operation or in the market has its own special characteristics. 20 years of financial reform, financial development while the Chinese city made impressive achievements, but the rural finance is the entire financial system is still the weakest link. Insufficient supply of rural finance, competition is not sufficient, farmers and agricultural enterprises in getting loans and other issues is also very prominent, backward rural financial system can no longer effectively support the development of modern agriculture or the transformation of traditional agriculture and the building of new socialist countryside, which to improve the rural financial supervision new topic. China's rural financial regulatory problems (A) the formation of China's financial regulatory system had "a line three commission " (People's Bank, the Securities Regulatory Commission, Insurance Regulatory Commission and the Banking Regulatory Commission) financial regulatory structure. Bank These stringent requirements, different management and diversification of monitoring has its positive role, but it also had some negative effects. First, inefficient supervision, supervision of internal consumption of high costs, limited financial industry business development and innovation space. Second, the regulatory agencies, regulatory bodies and the information asymmetry between central banks, banking, securities, and insurance mechanisms of coordination between regulatory bodies are not perfect. Information between central banks and regulatory agencies is difficult to share, is difficult to create effective monitoring force. Basically between the various 1American Journal of Agricultural Economics,2009.

工业建筑暖通专业设计小结

工业建筑暖通专业设计小结: 一、工业建筑暖通专业概况: 一般来说为两部分内容: 1、配套基础设施的设计:包括采暖、通风等内容。 2、与工艺要求配套的空调、净化、工艺循环水、压缩空气的系统 的设计。 二、设计依据:建设单位的设计任务书很重要。一般来说,工业建 筑的设计是以满足生产工艺的要求为主要设计依据,对采暖通 风专业,机加工车间、装配车间、电子厂房等各种车间对采暖、通风、空调的要求各不相同。要认真了解每一个设计参数,了 解工艺要求。 三、设计问题汇总: 1、通风设计:层高比较高的单层厂房,厂房的全面通风夏季应 以自然通风为主,冬季可考虑机械通风的要求。通风方式则 以屋面或建筑上部排风为主,排风时补风一般采用自然补 风。通风设计前,设计人员要了解建筑的结构形式,对钢结 构车间,排风设备的布置和悬挂应事先与结构专业协商好, 考虑好设备的吊装、检修,另外设备的振动、噪音等也要事 先考虑。有的加工车间工艺要求局部通风,设计时要详细了 解工艺排风对排风罩、排风量、各排风点同时运行情况等要 求,按照不同的要求设计排风系统。排风系统不要设计的太 大,管道不要太长。小系统使用方便,噪音低,风机产生的

震动小,吊装也方便。排风设备的控制要到位,是多台一起 开停,还是单个控制,应向建设单位了解他们的需求。一般 情况可以多台一起控制。公共卫生间的排风要加大排风次 数,一般应大于12次/小时。 2、采暖设计:厂房的一侧一般设计都带部分办公、管理和辅助 用房,这部分房间一般都要设计采暖系统,这些房间的采暖 系统可以和车间做一个系统,也可以单独做系统,建设单位 有独立要求的要单做。车间的采暖最好不要做暖沟,管道明 装为主。车间内散热器一般采用铸铁散热器。铸铁散热器耐 腐蚀性强、抗撞击、对水质的要求不高。车间的采暖以散热 器采暖为主,当采暖要求较高时,考虑暖风机供暖或天然气 辐射采暖。采用暖风机供热,要了解系统的供水温度,如果 供水温度低于70℃,则不易采用。不论何种采暖形式,冬 季都要考虑到系统的泄水、防冻等问题。多层厂房的采暖以 单管顺流系统为主,车间辅房内散热器要设恒温阀,可以分 室调节温度,车间内以每组散热器进出口均设阀门为好。室 内管道要考虑热伸缩补偿。管材考虑厂房的特殊性仍以采用 钢管为多。采暖系统一般采用同程系统。 3、工艺空调:工艺空调设计较为复杂,需要建设房提供的设计 参数较多。与工艺配套设计的空调要了解温度、湿度的要求、风速要求、净化等级、生产人员情况、照明情况、动力设备 情况、散湿情况、正压要求、新风量要求、排风要求、噪声

暖通空调专业外文翻译--空调系统

英文文献 Air Conditioning Systems Air conditioning has rapidly grown over the past 50 years, from a luxury to a standard system included in most residential and commercial buildings. In 1970, 36% of residences in the U.S. were either fully air conditioned or utilized a room air conditioner for cooling (Blue, et al., 1979). By 1997, this number had more than doubled to 77%, and that year also marked the first time that over half (50.9%) of residences in the U.S. had central air conditioners (Census Bureau, 1999). An estimated 83% of all new homes constructed in 1998 had central air conditioners (Census Bureau, 1999). Air conditioning has also grown rapidly in commercial buildings. From 1970 to 1995, the percentage of commercial buildings with air conditioning increased from 54 to 73% (Jackson and Johnson, 1978, and DOE, 1998). Air conditioning in buildings is usually accomplished with the use of mechanical or heat-activated equipment. In most applications, the air conditioner must provide both cooling and dehumidification to maintain comfort in the building. Air conditioning systems are also used in other applications, such as automobiles, trucks, aircraft, ships, and industrial facilities. However, the description of equipment in this chapter is limited to those commonly used in commercial and residential buildings. Commercial buildings range from large high-rise office buildings to the corner convenience store. Because of the range in size and types of buildings in the commercial sector, there is a wide variety of equipment applied in these buildings. For larger buildings, the air conditioning equipment is part of a total system design that includes items such as a piping system, air distribution system, and cooling tower. Proper design of these systems requires a qualified engineer. The residential building sector is dominated by single family homes and low-rise apartments/condominiums. The cooling equipment applied in these buildings comes in standard ―packages‖ that are often both sized and installed by the air conditioning contractor. The chapter starts with a general discussion of the vapor compression refrigeration cycle then moves to refrigerants and their selection, followed by packaged Chilled Water Systems。 1.1 Vapor Compression Cycle Even though there is a large range in sizes and variety of air conditioning systems used in buildings, most systems utilize the vapor compression cycle to produce the desired cooling and dehumidification. This cycle is also used for refrigerating and freezing foods and for automotive air conditioning. The first patent on a mechanically driven refrigeration system was issued to Jacob Perkins in 1834 in London, and the first

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