In recent years, with the "people-oriented" design concept of the proposed residential comfort people have become increasingly demanding, building energy consumption also will 据统计,目前我国建筑能耗约占国民经济总能耗的25%左右,且呈上升趋势。 According to statistics, China's national economy, building energy consumption accounts for about 25% of the total energy consumption, and on the 另一方面,随着建筑能耗的增加和大量空调设备的安装,“城市热岛效应”日益严重,使环境日益恶化。 On the other hand, with the increase in building energy consumption and large air-conditioning installation, "urban heat island effect" is worsening, deteriorating the 我国建筑节能的重点应为:建筑本体的节能、采暖系统节能、提高照明和其他电器的效率、大型公共建筑节能。 China's building energy efficiency should focus on are: ontology building energy-saving, energy-saving heating system, improve the efficiency of lighting and other electrical appliances, large public building energy 随着科学技术的日新月异,能源短缺已不容忽视,节约能源已受到世界性的普遍关注,在我国亦不例外。 With the ever-changing science and technology, energy shortage has not be ignored, a worldwide energy conservation has been widespread concern in China is no 目前,全世界有近30%的能源消耗在建筑物上,长此以往,将严重影响世界经济的可持续发展。 At present, nearly 30% of the world's energy consumption in buildings, the long run, it will seriously affect the world economy and sustainable 因此,能源问题将成为本世纪的热门话题。 Therefore, the energy issue will become a hot topic in this 本文着重讲的是现有建筑节能存在的问题、解决方法与未来的发展方向。 This article focuses on talking about the existing building energy problems, solutions and future direction of
题目:Geothermal resources 正文:Geothermal resources in the world's oldest energy It is estimated that the total thermal energy of the Earth's interior, about all the coal reserves of about 7 billion Year from Earth's interior heat loss through the surface, equivalent to 1,000 million barrels of oil burning On geothermal sources, there are several Is generally believed that the geothermal evolution of radioactive elements mainly come from the earth's interior heat release, followed by rotation of the Earth's rotation can be generated and gravitational differentiation, chemical reactions, heat release and other rock and mineral During the formation of the Earth, the total amount of these heat dissipation of heat over the Earth, an enormous heat reserves, so that partial melting of crustal igneous and metamorphic Basic calculation is now out, the planet's core temperature reaches 6000 ° C, temperature of the bottom crust 900-1000 ° C, the surface layer at room temperature (about 15 meters from the ground) about 15 kilometers of the following, the increase of temperature increased with The average temperature of geothermal is about 3 ° C/100 m Geothermal warming rates in different regions are different, close to the average warming rate is called the normal temperature range, higher than the average warming rate of the region, said geothermal Geothermal anomaly area is research and development of geothermal resources of the main Crustal plate edge, deep fault and the volcanic belt at the other, is obvious geothermal Exploration of geothermal resources survey, the general use of surface geothermal survey, drilling and various geophysical Infrared remote sensing technology in exploration in recent years achieved remarkable The late 20th century, the exploitation of geothermal resources were mainly shallow, heat storage, and have a fluid (water or artificial irrigation) lead to heat transfer to the surface of the wet geothermal Hot dry rock geothermal resources and low-temperature geothermal fields of wetland research development and utilization in the pilot China, rich in geothermal resources, has a long mining history, past the main advantage of hot spring bath After 1970, in Guangdong Fengshun, Huailai, Tianjin, and Tibet to have been carried out in thermal power generation, building heating, Agricultural greenhouse heating, warm water breeding, irrigation and other aspects Shi Yan Xing Kaifagongzuo, made some 译文:世界上最古老的能源之一。据测算,地球内部的总热能量,约为全约煤炭储量的7亿倍。每年从地球内部经地表散失的热量,相当于1000亿桶石油燃烧产生的热量。 关于地热的来源,有多种假说。一般认为,地热主要来源于地球内部放射性元素蜕变放热能,其次是地球自转产生的旋转能以及重力分异、化学反应,岩矿结晶释放的热能等。在地球形成过程中,这些热能的总量超过地球散逸的热能,形成巨大的热储量,使地壳局部熔化形成岩浆作用、变质作用。 现已基本测算出,地核的温度达6000°C,地壳底层的温度达900-1000°C,地表常温层(距地面约15米)以下约15公里范围内,地温随深度增加而增高。地热平均增温率约为3°C/100米。不同地区地热增温率有差异,接近平均增温率的称正常温区,高于平均增温率的地区称地热异常区。地热异常区是研究、开发地热资源的主要对象。地壳板块边沿,深大断裂及火山分布带等,是明显的地热异常区。 普查勘探地热资源,一般采用地表地热调查、钻探和各种物探方法。近年来红外线遥感技术在勘查中取得显著效果。20世纪末,地热资源的开采对象,主要是埋藏浅、热储量大、有流体(地下水或人工灌水)把热能传引到地表的湿地热田。干热岩地热资源和低温湿地热田的开发利用处在研究试验阶段。 中国的地热资源丰富,有悠久开采历史,以往主要利用温泉洗浴治病。1970年后,在广东丰顺、河北怀来、天津和西藏等地曾进行地热发电、建筑物采暖、农业温室采暖、温水育种、灌溉等多方面试验性开发工作,取得一定成果。