共查询到20条相似文献,搜索用时 78 毫秒
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在建立了精确的预测液化天然气密度及汽液两平衡算法的基础上,考虑了真实流体效应影响,推导了液化天然气(LNG)低温Yong,压力Yong及冷量Yong分析数学模型,运用上述模型计算了各种Yong的大小,并讨论了环境温度,系统压力,混合物组分对LNG冷量Yong特性的影响,提出应根据实际LNG流体的低温Yong压力Yong大小,综合考虑气体供给压力等因素,通过热力循环优化,确定LNG冷量Yong动力回 相似文献
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液化天然气冷量火用特性研究 总被引:1,自引:0,他引:1
在建立了精确的预测液化天然气密度及汽液相平衡算法的基础上,考虑了真实流体效应影响,推导了液化天然气(LNG)低温火用、压力火用及冷量火用分析数学模型,运用上述模型计算了各种火用的大小,并讨论了环境温度、系统压力、混合物组分对LNG冷量火用特性的影响,提出应根据实际LNG流体的低温火用、压力火用大小,综合考虑气体供给压力等因素,通过热力循环优化,确定LNG冷量火用动力回收的利用方案 相似文献
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本文通过国内天然气安全供应、消费情况、价格状况等方面对中国天然气产业现状进行了分析,并结合《中俄东线供气供销合同》,对俄罗斯未来供应中国天然气的价格进行了预测,分析了中俄天然气大单可能对中国天然气产业及国际天然气市场带来的影响,提出来未来国内天然气产业发展的对策建议. 相似文献
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对沈阳市区液化天然气应用进行可行性分析,介绍了其使用范围、应用经济分析,为沈阳市气源发展提供参考。 相似文献
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世界液化天然气的发展趋势 总被引:3,自引:1,他引:2
介绍了世界液化天然气(LNG)市场的分布情况。分析了世界LNG交易出现了多元化的趋势,LNG贸易合同更加多样灵活.买卖双方参与更多的LNG业务。指出世界LNG项目建设规模扩大,建设成本压力增大。预测世界LNG价格在短期内将呈价位下行波动态势.从长期看仍将保持高位上升波动态势;天然气将继续保持旺盛的需求,LNG产业市场前景广阔。 相似文献
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液化天然气用于电厂"油改气"工程 总被引:1,自引:0,他引:1
介绍了液化天然气用于调峰电厂“油改气”工程的总体方案和流程以及主要设备的运行特点。系统运行结果证明,电厂用液化天然气替代燃油的设想是可行的。“油改气”工程的点火成功,为推广清洁能源的应用、扩大电厂燃料来源、提高电厂运行的经济效益和良性发展找到了一条新路。 相似文献
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主要介绍了在全国煤改气的大趋势下,江苏省宿迁市某镇工业园区液化天然气(LNG)集中供热案例,尤其针对设计、建设和运营等部分进行了阐述和分析。 相似文献
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太阳热水器产业发展的若干问题 总被引:2,自引:0,他引:2
1 发展太阳热水器符合国情 太阳热水器是一种节能、环保、经济、安全、方便的绿色产品。发展推广太阳热水器符合我国的可持续发展战略,是解决城乡广大居民使用低温热水和工农业生产使用低温热水的有效途径。我国要建设全面小康社会,生活热水应该成为主要指标之一。研究表明,如果全国25%的家庭用电 相似文献
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我国小型风力发电行业2006年发展概况及建议 总被引:7,自引:0,他引:7
1 行业发展现状 2006年,由于我国<可再生能源法>的正式实施、国家"十一五"规划的制定、新农村建设的正式起步以及各级政府及主管部门的重视和支持,广大农、牧、渔民的生活水平不断提高,迫切要求改变和提高生活质量,除满足生活用电外,还要求解决生产用电. 相似文献
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The current state of cogeneration in Russia is analyzed. It is characterized by a sharp decrease in industrial heat consumption and a reduction in the demand for electricity. As a result many cogeneration plants presently operate under off-design conditions, which change their economic indexes to the worse. The ways of introducing small-scale cogeneration installations are considered, which show promise under the existing conditions of limited investments. The problems that accompany the introduction of modern highly efficient large-capacity power units at cogeneration plants are analyzed. 相似文献
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Erkan Erdogdu 《Renewable & Sustainable Energy Reviews》2009,13(6-7):1485-1494
Over the past decade or so, the electricity industry of the Republic of Turkey (and indeed the world) has undergone profound reform in its structure, ownership and mindset. Increasing public concern about efficiency in the sector has led Turkey to discard the traditional model of a vertically integrated industry subject to cost-based regulation in favor of the unbundling of activities and the introduction of competition where it is possible. The industry has been structurally separated into generation, transmission, distribution and retail segments. The competitive segments of the industry (generation and retail) are planed to progressively expose to competition; the monopoly segments (especially, distribution) are to be reoriented to foster competition. Further, the ownership of the industry is under increasing pressure to move away from the public domain into the private one. The present article not only presents an analysis of the Turkish distribution sector and proposed privatization process but also provides some guidelines for policy makers. 相似文献
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In this paper, a cross-section infrastructural and regulatory analysis of the European LNG sector is presented. The LNG chain is maintained as being a good tool to enlarge the number of natural gas exporters to Europe, adding in this way to competition and to the achievement of the targets of the liberalisation process, which is a decrease in price for final customers and security of supply. The main reason for this is to be identified in the minor specificity of the regasification-plant-related investment compared with pipeline transportation. As a matter of fact, as the infrastructural analysis will show, the construction of new LNG receiving terminals is likely to bring about an increase in the number of importers fostering competition among them and shrinking their margins among the value chain. In this context, regulation is meant to play a key role in promoting investments without hindering competition. Nevertheless it is questionable whether LNG will be able to introduce competition beyond the European border (that is among producers) according to the forecasted supply and demand balance that is leading to a seller's market in the upstream sector. In this case, a huger part of the rent would go to the exporters leaving minor scope for competition down the European border. 相似文献