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Electro-Pulse-Boring(EPB): Novel Super-Deep Drilling Technology for Low Cost Electricity 被引量:12
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作者 Hans O.Schiegg Arild Rdland +1 位作者 Guizhi Zhu David A.Yuen 《Journal of Earth Science》 SCIE CAS CSCD 2015年第1期37-46,共10页
The inexhaustible heat deposit in great depths (5-10 km) is a scientific fact. Such deposit occurs around the globe. Thereby, everybody is enabled to generate autonomously clean and renewable energy, ample electrici... The inexhaustible heat deposit in great depths (5-10 km) is a scientific fact. Such deposit occurs around the globe. Thereby, everybody is enabled to generate autonomously clean and renewable energy, ample electricity and heat. The economical exploration and exploitation of this superdeep geothermal heat deposit requires a novel drilling technique, because the currently only deep drilling method (Rotary) is limited to about 5 km, due to the rising costs, depending exponentially on depth. Electro-pulse-boring (EPB) is a valuable option to Rotary drilling. EPB, originally investigated in Russia, is ready to be developed for industrialization. The feasibility of EPB is proven by many boreholes drilled up to 200 m in granite (crystalline). Estimates show outstanding low costs for drilling by EPB: 100 E/m for a borehole with a large diameter (φ) such as 20 (50 cm), independent on depth and applicable likewise for sediments and crystalline rocks, such as granite. The current rate of penetration (ROP) of 3 m per hour is planned to be augmented up to 35 m per hour, and again, irrespective whether in sedimentary or crystalline formations. Consequently, a 10 km deep borehole with φ 50 cm will ultimately be drilled within 12 days. EPB will create new markets, such as: (i) EPB shallow drilling for geotechnics, energy piles, measures in order to mitigate natural hazards, etc., (ii) EPB deep drilling (3-5 km) for hydro-geothermics, exploration campaigns etc. and (iii) EPB super-deep drilling (5-10 km) for petro-geothermies, enabling the economic generation of electricity. The autonomous and unlimited supply with cost efficient electricity, besides ample heat, ensures reliably clean and renew- able energy, thus, high supply security. Such development will provide a substantial relief to cope with the global challenge to limit the climate change below 2 ℃. The diminution of fossil fuels, due to the energy transition in order to mitigate the climate change, implies likewise 展开更多
关键词 drilling technology electro pulse petro-geothermics geoenergy geothermal electricity climate change air pollution.
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我国西部冬季扰动源涡与东部夏季雨带分布 被引量:12
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作者 柳艳香 汤懋苍 《高原气象》 CSCD 北大核心 2001年第1期109-112,共4页
我国西部 (85°10 5°E)冬季“扰动源涡”的位置对夏季东部雨带的配置具有支配作用。当西部“源涡”位于 35°N以北时 ,东部雨带多出现在黄河流域及其以北 (Ⅰ类雨型 ) ;源涡位于 32°35°N之间时 ,夏季雨带多出现... 我国西部 (85°10 5°E)冬季“扰动源涡”的位置对夏季东部雨带的配置具有支配作用。当西部“源涡”位于 35°N以北时 ,东部雨带多出现在黄河流域及其以北 (Ⅰ类雨型 ) ;源涡位于 32°35°N之间时 ,夏季雨带多出现在淮河流域 (Ⅱ类雨型 ) ;当源涡位于 32°N以南时 ,雨带多出现在长江流域或江南 (Ⅲ类雨型 )。 展开更多
关键词 扰动源涡 雨带 地热脉冲 冬季 夏季 西部地区 东部地区 中国
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地热换热器间歇运行工况分析 被引量:34
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作者 崔萍 刁乃仁 方肇洪 《山东建筑工程学院学报》 2001年第1期52-57,共6页
地源热泵应用推广的关键和难点是地热换热器的设计和运行模拟 ,大多数工程应用均采用简单而又实用的线热源模型。本文利用线热源解模拟出地热换热器周围土壤的温度响应 ,对于随时间变化的负荷或间歇负荷可以近似用一系列的矩形脉冲热 (... 地源热泵应用推广的关键和难点是地热换热器的设计和运行模拟 ,大多数工程应用均采用简单而又实用的线热源模型。本文利用线热源解模拟出地热换热器周围土壤的温度响应 ,对于随时间变化的负荷或间歇负荷可以近似用一系列的矩形脉冲热 (或冷 )负荷来代替。因此 ,采用了迭加原理来分析计算随时间变化的间歇负荷引起的温度响应。通过模拟计算发现 ,在计算流体的最大温升值时 ,可以把间歇工作的周期性脉冲热流简化为一个持续作用的平均热负荷和一个脉冲负荷的和。这为地热换热器的设计计算提供了一种简单实用的方法。通过编程模拟还证明 ,对于地热换热器来说 ,冷热负荷平衡的工况是最理想的工况 ,长期运行不会引起地层中热量 (冷量 )积累而使地热换热器性能退化。 展开更多
关键词 地源热泵 地热换器 脉冲负荷 供热 运行
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两强震涡中点的“拍涡”引发致洪暴雨初探 被引量:4
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作者 汤懋苍 廖留峰 +1 位作者 梁丰 郭维栋 《地球物理学进展》 CSCD 北大核心 2013年第5期2241-2246,共6页
两个强震震涡中心连线的中点处,因为共振和“拍”的作用,会形成“地热涡”,它使得位于其上的地幔与地壳抬升,地温升高(3.2m地温亦升高),因此将其称为“拍地热涡”(简称“拍涡”).本文对近30年出现在我国的“拍涡”进行了统... 两个强震震涡中心连线的中点处,因为共振和“拍”的作用,会形成“地热涡”,它使得位于其上的地幔与地壳抬升,地温升高(3.2m地温亦升高),因此将其称为“拍地热涡”(简称“拍涡”).本文对近30年出现在我国的“拍涡”进行了统计,结果表明:凡两个强震符合下述条件者:1)两强震的震级差≤1.5级,其最强地震≥6.5级(除1982年12月6.4级例外);2)两强震的震中距相差1500-6000km;3)两强震的时间差≤2个月.半年之内在其“拍涡”的数百公里范围内会出现一块R’%〉100%的强大多雨区,这为水灾预测提供了依据.同时对少数不符合上述条件的个例进行了成因解释. 展开更多
关键词 强震 拍地热涡 强降水区 外核脉冲 致洪暴雨预报
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THE GEOTHERMAL PULSE OF HOT-SPOT AND ITS DISPERSION PROCESS OVER CHINA-INDIA-BURMA AND CHANGE OF SHORT-TERM CLIMATE
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作者 Liu Yanxiang,Tang Maocang 《地学前缘》 EI CAS CSCD 2000年第S1期376-376,共1页
The great gorge of Yarlung Zangbo river is a hot\|spot over earth has been proved by the gravity, geomagnetic, geological, geothermal heat and atmospheric data. Some substances often surge from mantle to the earth sur... The great gorge of Yarlung Zangbo river is a hot\|spot over earth has been proved by the gravity, geomagnetic, geological, geothermal heat and atmospheric data. Some substances often surge from mantle to the earth surface, which process is not constant and has obvious pulse, characterized by ground temperature over hot\|spot region where is a apparent positive relation in correlation map of the variations of Zedang’s temperature (at 3 2m) in stations over China from 1965 to 1992. It can bring more precipitation here. Out of from the hot spot, there are positive and negative axes around the hot\|spot and to arrange in circular waves with same distance. The average distant of the axes is about 820km, which prove the pulse propagation would infect the distribution of summer precipitation in China. In the hot\|spot region, the geothermal heat pulse propagation has preference direction. So, it has obvious contribution for summer precipitation in South Ch ina. 展开更多
关键词 geothermal pulse hot\|spot DISPERSION CLIMATE
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