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高含水期集输系统效率测试分析研究 总被引:1,自引:0,他引:1
分析了某油田集输系统工艺流程及能耗分布状况,并通过对集输系统管网、转油站、脱水站3部分效率测试及分析研究,给出系统目前的能耗状况,找到集输系统效率低、能耗高的主要影响因素,为油田集输系统下步节能挖潜改造指明方向。测试结果表明,管网部分井口至计量间的管道能耗严重,转油站、联合站及整个集输系统的热能利用较差.应加强保温工作。 相似文献
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以某超高层酒店燃气蒸汽锅炉节能改造为例,对锅炉蒸汽系统改造前能耗进行了拆分、效率测试及节能潜力分析,进而提出了改造方案并测算了节能效果,对设计、施工及调试过程中出现的问题进行了总结和分析,为同类建筑锅炉蒸汽系统的改造提供了参考和借鉴。 相似文献
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中央空调是能耗大户,如何提高其使用效率和根据实际使用工况实现节能降耗是一项重要工作内容.本文提出了一系列改造方案,并分析了改造结果.通过改造,中央空调系统系统节能降耗效果明显. 相似文献
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《上海节能》2017,(8)
通过对上海金山区某公司冷水机组系统变频改造前后进行数据采集及工况监视,分析改造前后节能情况,采用冷水机组系统COP值和外部效率ICOP、内部效率DCOP综合评价冷水机组的运行性能。数据显示:改造前后COP节能率为24.56%;改造前后ICOP节能率为39.63%;改造前后DCOP节能率为-20.45%。本次变频改造外部系统运行节能效果较明显,COP和ICOP提高显著;但冷水机组本身效率不升反降,内部因素DCOP有一定的下降,这表明,传输系统以及相应的冷机系统变频改造使系统总能耗降低,但冷水机组的功效利用还有挖掘潜力。系统总体的COP值的提高不能保证机组内部效率的提升,在变频节能改造工程中,需要考虑充分提高冷水机组运行效率,达到进一步降低系统运行的能耗的效果。 相似文献
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为了掌握公共建筑集中空调系统的能耗状况,以某大型公共建筑为例,通过对用电、用气及用水情况,及相关运行设备等方面进行了能耗测试和分析,得出公共建筑的主要的能耗对象为集中空调系统,且公共建筑空调系统存在设计选型偏大、设备运行效率低、运行管理不规范、缺乏室温控制等诸多问题。提出了针对大型公共建筑的节能改造方面的建议。 相似文献
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对电厂汽轮机节能降耗改造的可行性进行了分析,并就如何提高汽轮机运行效率的有效措施进行了探讨,以实现能耗大户火力发电厂的节能降耗。 相似文献
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Specific energy consumption (SEC) is an energy efficiency indicator widely used in industry for measuring the energy efficiency of different processes. In this paper, the development of energy efficiency and CO2 emissions of steelmaking is studied by analysing the energy data from a case mill. First, the specific energy consumption figures were calculated using different system boundaries, such as the process level, mill level and mill site level. Then, an energy efficiency index was developed to evaluate the development of the energy efficiency at the mill site. The effects of different production conditions on specific energy consumption and specific CO2 emissions were studied by PLS analysis. As theory expects, the production rate of crude steel and the utilisation of recycled steel were shown to affect the development of energy efficiency at the mill site. This study shows that clearly defined system boundaries help to clarify the role of on-site energy conversion and make a difference between the final energy consumption and primary energy consumption of an industrial plant with its own energy production. 相似文献
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杭州市能源利用效率现状与对策 总被引:1,自引:1,他引:0
以"十五"末~2005年本地区的能源与利用状况为分析基础,针对国家提出的"十一五"期间GTP能耗下降20%的目标,从能源消费现状、结构和发展趋势、工业用能、单位产品能耗、工艺、设备耗能效率和节能技术创新角度,浅析降低能源消耗和损失;提高能源利用效率. 相似文献
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《Energy Policy》2005,33(5):651-658
Energy conservation in utilities has played a vital role in improving energy efficiency in the industrial, commercial and residential sectors. The electrical energy consumption in Palestine has increased sharply in the past few years and achieved by the end of 2001 to 10% per year. It is expected that this percentage will increase to about 12% if the current political situation will end hopefully with peace. Modern energy efficient technologies are needed for the national energy policy. Such technologies are investigated in this paper. Implementing of a national 3 years project aiming at energy efficiency improvement in residential and industrial sectors as well as in public utilities, which include wide range of diversified audits and power measurements, had led to creating this paper. Measurement and audit results had shown that the total conservation potential in these sectors is around 15% of the total energy consumption. The associated costs of the investment in this field are relatively low and correspond to a pay back period varying in the range from 6 to 36 months. Consequently, the energy conservation policy will be seriously improved in the forthcoming years. It is estimated that 10% of the new energy purchasing capacity will be reduced accordingly. 相似文献
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我国电气化水平和能源效率关系分析 总被引:1,自引:0,他引:1
本文用因素分解法探讨了电气化水平的提高与我国能源效率的关系,指出要重视结构因素对我国能源效率的影响,通过提高我国发电用能比重和电能占终端用能比重,提高我国综合能源效率。 相似文献
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《Energy Policy》2014
Over the past three decades, people׳s living standard in China has been greatly improved, accompanied by the rapid increasing building energy consumption. Rural building energy consumption has become one of the most important parts of the total energy consumption in China, which deserves to be paid much attention. It is of vital importance to promote building energy efficiency for the New Socialist Countryside and energy conservation and emission reduction. This paper provides an overview of building energy consumption in the countryside, which figures out the situation and challenges in energy-saving work. The government has worked for years on rural building code system aimed at narrowing the energy gap between urban areas, but it is in the beginning phase. This paper has analyzed the only special issues about rural building energy efficiency and the mandatory standards for urban buildings, which can facilitate the development of rural building energy efficiency. Based on the above analysis, some recommendations regarding the improvement of rural building energy efficiency are given. 相似文献
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Igor Bashmakov 《Energy Efficiency》2009,2(4):369-386
This paper considers Russian economy-wide energy efficiency potential by sectors and energy carriers. The assessment shows
that Russian technical energy efficiency potential exceeds 45% of 2005 primary energy consumption or 294 mtoe (excluding associated
gas flaring). This is about the annual primary energy consumption in France, the UK, or Ukraine, half of that in Japan, and
over 2% of the global primary energy consumption. Related CO2 emission reduction potential is 50% of the Russian 2005 emission. Special attention is given to methodological issues in
aggregating potentials identified in final energy use and to the evaluation of indirect energy efficiency gains. This study
found that the energy efficiency potential doubles, if associated reduction of energy use, as well as technology progress,
in energy production and transformation are accounted for. Cost curves for energy efficiency improvements were developed using
the incremental cost approach to identify the cost-effective part of the potential. 相似文献