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生物质能—未来能源的希望 总被引:8,自引:0,他引:8
本文论述了生物质能的潜力和各种生物质能转化技术;开发和利用生物质能,我们能能能获得气体、液体、固体和电力等形式的能源。未来的生物质能,不仅能提供人类所需的各种能源,同时还有利于解决环境与发展的协调相益。 相似文献
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GN090401生物质能转化利用技术系统探讨.王贤华,周宏伟,王德元,等.能源研究与利用,2009(2):1-4.系统地分析、阐述了我国生物质能的利用技术发展现状;在分析现有生物质能利用系统优劣利弊的基础上,对我国生物质能的快速发展思路进行了探讨;指出了我国未来生物质能利用系统应朝着"分布式"能源方向发展。为生物质能进一步发展提供了一种经济、环境、社会相协调的发展思路,对我国生物质能利用和发展起着重要作用。 相似文献
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生物质能的转化和利用技术研究 总被引:1,自引:0,他引:1
能源短缺成为影响中国未来发展的主要问题之一。生物质能的应用有助于解决我国能源短缺的问题,同时能够减小化石燃料使用带来的负面影响。文章主要介绍了生物质能的概念、生物质能利用的意义及生物质能的转化和利用技术,而且还提出实际利用过程中需要解决的问题以及未来的发展方向——以生物质为核心的多联产系统。 相似文献
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生物质能源开发新技术 总被引:2,自引:0,他引:2
赵晓晓 《能源技术(上海)》2007,28(6):330-335
分析了生物质能源和生物质利用在解决能源危机及环境问题上的重要作用,介绍了生物质能转化利用的主要途径:热化学转化及生物化学转化技术.总结了国内外生物质能源利用的现状,阐述了我国未来生物质能源的发展方向和目标. 相似文献
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正金砖五国各国的目标和框架政策重点领域有所不同。在可再生能源领域中,巴西最为关注生物质能、水能和电力生产;俄罗斯将能源效率的提高作为发展重点,未来可再生能源发展项目则关注水能技术;印度则将重点放在了风能、太阳能和生物质能研发上;中国更注重太阳能、风能和重点节能技术;南非则优先关注太阳能、生物质能以及能效问题等。预计未来数年内,金砖国家在全球可再生能源发展中的作用将迅速增强。巴西:巴西拥有南美洲最大的电力市场,该 相似文献
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西藏能源利用现状及发展探讨 总被引:3,自引:1,他引:3
能源安全是西藏的现代化建设的重要基础,尽管西藏能源建设取得很大进展,但形势仍不容乐观。本文在全面分析了西藏未来发展的能源资源基础、能源生产和消费特点和以生物质能为主能源消费结构对环境的影响的基础上,提出了未来西藏能源发展的方向是积极引导和鼓励调整能源消费结构,充分利用太阳能、风能和水能等可再生能源,减少生物质能源消费。 相似文献
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《Renewable & Sustainable Energy Reviews》2007,11(8):1827-1842
During last century, worldwide environment degradation gets more and more serious, and achieving environmental sustainable development is desirable. As many environmental issues are directly or indirectly energy related, energy sustainable development is one of the most important prerequisites for environmental sustainable development. Renewable energy technologies and energy conservation are two solutions for energy sustainable development. At present, energy-saving technology is a feasible and an effective way to achieve energy and environmental sustainable development, although renewable energy may be final solution to environmental issues. Building cooling, heating, and power (BCHP) technology, which usually use natural gas as primary energy, has high efficiency of energy utilization due to the utilization of distributed power generation and heat recovery, and thus is a promising energy conservation technology. BCHP can reduce pollutants emission and thus protects the environment besides improving IAQ and increasing reliability of building energy supply. As the largest developing country, China is just in the process of adjusting energy structure and improving energy efficiency. Because of its significant role in energy and environmental sustainable development, developing BCHP in China will help the country in optimizing energy proportion, increasing energy efficiency, and protecting environment. Therefore, BCHP technology will have broad prospects in China and it will promote the country's energy and environmental sustainable development. 相似文献
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在橡胶的混炼、压延、挤出过程中,会产生大量烟汽,具有刺激性气味,对人体有着不同程度的危害;橡胶行业还是高耗能行业。因此改良橡胶软管配方设计可在很大程度上减少污染,节约能源。通过对橡胶软管内胶层配方设计的研究讨论,提出合理的设计建议,为节能环保方面打下良好基础。 相似文献
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Sustainable energy harvesting, such as solar energy, depends increasingly on nanotechnology components. This article will look briefly at the principles of photovoltaic units and elucidate the toxicological aspects of its principal components, namely fullerenes and carbon nanotubes. Through this approach, we address the rebound effect related to health adverse and environmental aspects which is a key issue to be solved when innovating in energy harvesting. The understanding of sustainability in this context is that the technology provides lasting improvement by bringing environmental compatibility along with technological agility, providing major reductions in both material and energy resource use and avoid negative impacts on our environment and health. With the rebound effect we understand the unintended emergence of negative environmental impacts resulting from intentions of improving environmental issues.Sustainable energy-harvesting, such as solar energy, depends increasingly on nanotechnology components. This article provides a brief overview of photovoltaic units and the toxicological aspects of their principal components, namely fullerenes and carbon nanotubes. It will then address the adverse, rebound effects on human health and the environment, the next key issue to be resolved within energy-harvesting innovation. Sustainability in this context, refers to the role of technology in providing lasting improvement through environmental compatibility combined with technological agility that enables major reductions in both material and energy resource use and minimizes negative impacts on health and the environment. The rebound effect, refers to the unintended emergence of negative environmental impacts as a result of remedial actions designed initially to improve the environment.These will be discussed in context with the two major classes of nanomaterials in consumer electronics: fullerenes and carbon nanotubes, which carry a series of properties that make them classifiable as hazardous materials. 相似文献
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Life-cycle assessment in the renewable energy sector 总被引:7,自引:0,他引:7
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gorzata Gralczyk 《Applied Energy》2003,75(3-4):205-211
The Polish energy industry is facing challenges regarding energetic safety, competitiveness, improvement of domestic companies and environmental protection. Ecological guidelines concern the elimination of detrimental solutions, and effective energy management, which will form the basis for sustainable development. The Polish power industry is required to systematically increase the share of energy taken from renewable sources in the total energy sold to customers. Besides the economic issues, particular importance is assigned to environmental factors associated with the choice of energy source. That is where life-cycle assessment (LCA) is important. The main purpose of LCA is to identify the environmental impacts of goods and services during the whole life cycle of the product or service. Therefore LCA can be applied to assess the impact on the environment of electricity generation and will allow producers to make better decisions pertaining to environmental protection. The renewable energy sources analysed in this paper include the energy from photovoltaics, wind turbines and hydroelectric power. The goal and scope of the analysis comprise the assessment of environmental impacts of production of 1 GJ of energy from the sources mentioned above. The study will cover the construction, operation and waste disposal at each power plant. Analysis will cover the impact categories, where the environmental influence is the most significant, i.e. resource depletion, global warmth potential, acidification and eutrophication. The LCA results will be shown on the basis of European and Australian research. This analysis will be extended with a comparison between environmental impacts of energy from renewable and conventional sources. This report will conclude with an analysis of possibilities of application of the existing research results and LCA rules in the Polish energy industry with a focus on Poland's future accession to the European Union. Definitions of LCA fundamental concepts, its methodology and application are described in the ISO 14040-14049 series of standards. These standards have already been introduced in some countries, but in Poland they are still at the stage of translation into Polish. Nevertheless some companies in Poland try to assess how their products influence the environment and what are the possibilities of technology improvement in the existing production process reduce their environmental impact. 相似文献
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Problems with energy supply and use are related not only to global warming, but also to such environmental concerns as air pollution, ozone depletion forest destruction and emission of radioactive substances. These issues must be taken into consideration simultaneously if humanity is to achieve a bright energy future with minimal environmental impacts. Much evidence exists which suggests that the future will be negatively impacted if humans keep degrading the environment. There is an intimate connection between energy, the environment and sustainable development. A society seeking sustainable development ideally must utilize only energy resources which cause no environmental impact (e.g. which release no emissions to the environment). However, since all energy resources lead to some environmental impact, it is reasonable to suggest that some (not all) of the concerns regarding the limitations imposed on sustainable development by environmental emissions and their negative impacts can be in part overcome through increased energy efficiency. A strong relation clearly exists between energy efficiency and environmental impact since, for the same services or products, less resource utilization and pollution is normally associated with higher efficiency processes. Anticipated patterns of future energy use and consequent environmental impact (focusing on acid precipitation, stratospheric ozone depletion and the greenhouse effect) are comprehensively discussed in this paper. Also, some solutions to current environmental issues in terms of energy conservation and renewable energy technologies are identified and some theoretical and practical limitations on increased energy efficiency are explained. The relations between energy and sustainable development, and between the environment and sustainable development, are described, and an illustrative example is presented. Throughout the paper several issues relating to energy, environment and sustainable development are examined from both current and future perspectives. Finally, several conclusions and recommendations are drawn which may be useful to energy scientists and engineers and policy makers. © 1998 John Wiley & Sons, Ltd. 相似文献
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Atmospheric environmental quality in China has been improving due to a variety of programs implemented by the Chinese government in recent decades. However, air pollution is still serious because of rapid socioeconomic development and increased energy consumption. Atmospheric environmental problems appear to be complex and regional in nature, and China's climate is aggravated by global climatic change. Air pollution originates from multiple sources and the effect on public human health will increase. The influence of acid rain in southern China will be long term, and the impact of climate change will rise. In order to reduce the adverse effects of air pollutants on the environment, the total number of emission sources from major industry, fine particle pollutants, SO2 emissions from power plants and the vehicle exhaust must be lowered and strictly controlled. The energy structure will affect the quality of the atmosphere for a long time. Increased energy efficiency, optimization of energy structure and the generation of a sustainable consumption and production patterns will provide opportunities to resolve regional and the global environmental problems. 相似文献
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墨西哥拥有丰富的页岩气资源,目前该国政府已通过了能源改革二次法案,油气对外开放力度加大。墨西哥国家石油公司在能源改革之前对页岩气的勘探有一定的投入,但限于资金和技术的缺乏,整体进展缓慢。当前墨西哥发展页岩气产业面临的主要问题包括财税政策与合同模式还有待于进一步完善,环境规制方案尚未出台,勘探开发面临水资源短缺、基础设施不足、生产设备缺乏等因素困扰,以及北方地区禁毒局势不明朗等。从长期来看,需求增长是驱动墨西哥页岩气产业发展的深层次因素,而能否吸引在美中小企业投资墨西哥事关发展大局。综合考虑资源分布、国内投资环境、管网建设与需求等各方面因素,墨西哥页岩气产业将表现出由南向北发展的特点,北方是发展重点,天然气出口导向政策是页岩气产业发展的必要条件。基于上述分析,外资企业在墨西哥投资页岩气产业,可以考虑采取早期介入、合作勘探以及争取有利合同条款、做好页岩气勘探开发后续产业链规划等策略。 相似文献