Energy means the power which does work and drives machines.
All living things (including humans) rely on the sun as a source of energy. Coal, petroleum, and natural gas are energy sources available today because organisms in the past captured sunlight energy and stored it in the complex organic molecules that made up their bodies, which were then compressed and concentrated.
With the development of society, a large of energy sources have been used,such as coal, petroleum, natural gas, geothermal energy, nuclear fission power, nuclear fusion power, solar energy, and Hydrogen gas. however, under the circumstances, the quantity of energy source is limited. unlimited usage of energy source results in energy crisis.
At present, most of the energy consumed by humans is produced from fossil fuels. The greatest recoverable fossil is in the form of coal and lignite. Although world coal resources are enomous and potentially can fill energy needs for a century or two, their utilization is limited by environmental disruption from mining and emissions of carbon dioxide and sulfur dioxide. These would become intolerable long before coal resources were exhausted.
Only a small percentage of coal and lignite has been utilized to date, whereas much of the recoverable petroleum and natural gas has already been consumed. Petroleum has several characteristics that make it superior to coal as a source of energy. Its extraction causes less environmental damage than does coal mining. It is a more concentrated source of energy than coal, and it burns with less pollution, and it can be moved easily through pipes. These characteristics make it an ideal fuel for automobiles.
Since first commercial oil well in 1859, somewhat more than 100 million barrels of oil have been produced in the United States, most of it in recent years. In 1990 world petroleum consumption was at a rate of about 65 million barrels per day. Projected use of petroleum and natural gas indicates rapid depletion. Alaskan oil can help the petroleum supply only temporarily. Peak world petroleum resources production will be reached within a few years.
Since the first "energy crisis" of 1973-1974, some concrete actions have even taken place. However, the several-fold increase in crude oil prices since 1973 has extacted a toll. In the U.S. and other industrialized nations, the economy has been plagued by inflation, recession, unemployment, and obsolescence of industrial equipment. The economies of some petroleum-deficient developing countries have been devastated by energy prices.
Energy crisis was accompanied by worldwide shortages of some foods and minerals, followed in some cases by surpluses, such as the surplus wheat resulting from increased planting and a copper surplus resulting from the efforts of copper-producing nations to acpuire foreign currency by copper export.
As known to all,the availability and cost of energy has become dominant factors in society today. Obviously, solving the "energy crisis" makes good sense. Many schemes has been proposed for conserving present energy resources and for developing new ones. It is always possible to use less energy in any process. Therefore, energy engineer is created and developed. The first goal of energy engineer is to determine the methods by which energy utilization is reduced but the output remains the same, or even increases.The second goal is to determine which methods of using less energy are cost effective.
Conventional engineering techniques are used to evaluated the mechanisms of energy use. Economic considerations are of equal importance and life cycle cost and saving techniques are used to determine cost-effective measures. The evaluation focuses on those uses which are significant in the overall picture and attempts to determine those technical measures that can reduce usage and save money.
Meanwhile, looking for ideal energy sources is also very important to solve energy crisis. The recipe for an ideal energy source calls for one that is unlimited in supply, widely available, and inexpensiveit should not add to the earth's total heat burden or produce chemical air and water pollutants. Solar energy fulfills all of these criteria. Solar energy does not add excess heat to that which must be radiated from the earth. On a global basis, utilization of only a small fraction of solar energy reaching the earth could provide for all energy needs.
Solar energy is unlimited in supply, but its exploitation and utilization are limited owing to the limitation of technology and conditions.
Solar energy
utilization needs an enormous amount of land, and there are economic and environmental problems related to the use of even a fraction of this amount of land for solar energy collection. Certainly, many residents of Arizona would not be pleased at having so much of the state devoted to solar collectors, and some environmental groups would protest the resultant shading of rattlesnake habitat.
Solar power cells for the direct conversion of sunlight to electricity have been developed and are widely used for energy in space vehicles. With present technology, however, they remain too expensive for large-scale generation of electricity. Therefore, most schemes for the utilization of solar power depend upon the collection of thermal energy, followed by conversion to electrical energy. The simplest such approach involves focusing sunlight on a steam-generating bioler. Parabolic refkectors can be used to focus sunlight on pipes containing heat-transporting fluids. Selective coatings on these pipes can be used so that only a small percentage of incident energy is reradiated from the pipes.
With the installation of more heating devices and the probable development of some cheap, direct solar electrical generating capacity, it is likely that during the coming centry solar energy will be providing an appreciable percentage of energy needs in areas receiving abundants
建筑工程专业英语词汇建设,建筑,修建 to build, to construct
建筑学 architecture
修筑,建筑物 building
房子 house
摩天大楼 skyscraper
公寓楼 block of flats (美作:apartment block)
纪念碑 monument
宫殿 palace
庙宇 temple
皇宫,教堂 basilica
大教堂 cathedral
教堂 church
塔,塔楼 tower
十层办公大楼 ten-storey office block
柱 column
柱列 colonnade
拱 arch
市政 town planning (美作:city planning)
营建许可证,建筑开工许可证 building permission
绿地 greenbelt
建筑物的三面图 elevation
设计图 plan
比例尺 scale
预制 to prefabricate
挖土,掘土 excavation
基 foundations, base, subgrade
打地基 to lay the foundations
砌好的砖列 course of bricks
脚手架 scaffold, scaffolding
质量合格证书 certification of fitness
原材料 raw material
底板 bottom plate
垫层 cushion
侧壁 sidewall
中心线 center line
条形基础 strip footing
附件 accessories
型钢 profile steel
钢板 steel plate
熔渣 slag
飞溅 welding spatter
定位焊 tacking
引弧 generating of arc
熄弧 quenching of arc
焊道 welding bead
坡口 beveled edges
外观检查 visual inspection
重皮 double-skin
水平方向弧度 radian in horizontal direction
成型 molding
直线度 straightness accuracy
焊缝角变形 welding line angular distortion
水平度 levelness
铅垂度 verticality
翘曲变形 buckling deformation
角尺 angle square
对接焊缝 butt weld
母材 parent metal
法兰密封面 flange sealing surface
夹层 interlayer
表面锈蚀浓度 surface corrosion concentration
挠曲变 bending deformation
超声波探伤 ultrasonic testing/ ultrasonic examination
压力容器 pressure vessel
预制下料 prefabrication baiting
排版直径 set-type diameter
焊缝 welding line
中幅板 center plate
测量方法 measuring method
基准点 datum mark
跳焊 skip welding
允许偏差 allowable variation
补强板 stiffening plate
开孔 tapping
对接接头 banjo fixing butt jointing
角钢 angle iron
安装基准圆 installation fundamental circle
吊装立柱 hoisting upright column
焊接钢管 welded steel pipe
向心斜拉筋 centripetal canting pull rope
带板 band plate
槽钢胀圈 channel steel expansion ring
环口 collar extension
局部变形 local distortion
环缝 circumferential weld
顶板 top plate
拱顶 vault
顶板加强肋 stiffening rib
对接 butt joint
胎具 clamping fixture
卷板机 plate bending rolls
中心支架 center bearing bracket
椭圆度 ovality
等分线 bisectrix
搭接宽度 lap width
点焊 spot welding
搭接焊 overlap welding
对称 symmetrically
螺旋爬梯 cockle stairs
放料阀 baiting valve
液位计 content gauge
芬兰维萨拉 Vailsla OY
美国美科 "Met-coil, USA"
集中式空调系统 centralized air conditioning system
裙房 annex
热源 heat source
平面位置的空间 space of planimetric position
密封性能 sealing performance
机房 machine room
节点 timing
专业 "profession or discipline 都可以,要根据上下文"
连体法兰 coupling flange
垂直井笼 vertical well cage
变风量 variable air rate
施工面展开 construction unfolds
违约行为 noncompliance
合同交底- contract presentation
管理承包商 Management Contractor party
工程量 work amount
实施的形象进度 progress of implementation
完工资料 as-built documentation
文整 clear-up
审核 review
汽车式起重机 Autocrane
深化图纸 deepen drawing
设备配置计划 equipment furnishment plan
结构预埋配合阶段 Structure pre-embedment assistance
stage
精装修阶段 Fine fitment stage
工程施工阶段 Construction stage
工程竣工阶段 Completion stage
台钻 Bench drill
冲击钻 Churn drill
手电钻 Electric portable drill
砂轮切割机 Abrasive cutting off machine
角钢卷圆机 Angle iron rolling machine
管道切断器 Pipe cutting machine
铜管调直机 Copper pipe straightening machine
管道压槽机 Book joint setting machine for pipes
管道压槽机 Book joint setting machine for pipes
角向磨光机 Angle polishing machine
电动套丝机 Electric threading machine
电动卷扬机 Electric winch
电动试压泵 Motor-driven pressure test pump
手动试压泵 Manual pressure test pump
阀门试压机 Valve pressure test device
阀门试压机 Valve pressure test device
TDC(F)风管加工流水线 TDC(F)air ductwork fabrication
stream line
等离子切割机 Plasma cutting machine
TDC(F)法兰条成型机 TDC(F) flange strip shaping mill
勾码成型机 Forming machine for flange clamp
TDC(F)风管加工成型机 TDC(F) duct fabrication shaping mill
多普勒超声波流量检测仪 Doppler ultrasonic flow detector
温、湿度传感器 "Temperature, humidity senor"
精密声级计 Precision sound level meter
风管漏风量测试仪、风室式漏风测试装置 "Duct air leakage
tester, airchamber air leakage testing device"
风罩式风量测试仪 Air hood air rate tester
微压计、毕托管、热球(电)风速仪 "Micromanometer ,
pitot tube, hot bulb(electrical) anemoscope"
潜水泵 Submerged pump
电动弯管机 Electric pipe bender
铜管弯管机 Copper pipe bender
液压弯管机 Hydraulic pipe bender
电动剪刀 Electric clipper
液压铆钉钳 Hydraulic riveting clamp
线槽电锯 Trunking electric saw
开孔器 Tapper
电动空压机 Electric air compressor
液压千斤顶 Hydraulic jack
液压手推车 Hydraulic trolley
焊条烘干箱 Welding rod drying box
手拉葫芦 Chain block
道(垫)木 Sleeper
转速表 Tachometer
电流钳型表 Clip-style ammeter
压力表 Pressure gauge
接地电阻测试仪 Earthing resistance testing device
氧气表 Oxygen gauge
乙炔表 Acetylene gauge
对讲机 Walkie talkie
文件和资料 documents and information?
建设单位 Construction unit
安装单位 Installation unit