LNG冷能综合利用规划方案评价研究

发布时间：2018-03-04 18:24

本文选题：LNG冷能　切入点：利用方案　出处：《大连理工大学》2016年硕士论文　论文类型：学位论文

【摘要】：液化石油天然气(LNG)气化时会释放出大量冷能。随着全球能源短缺、环境问题加剧以及LNG贸易量的迅速增长,LNG冷能利用的前景非常广阔。规划LNG冷能利用项目时,需要在可行性研究阶段对冷能利用方案给予充分的综合评价。本文针对我国目前LNG冷能利用工艺的评价方法进行了研究,主要内容如下：首先,对LNG冷能利用技术的原理和利用方式作介绍,提出本文研究的主要内容和目标。对LNG冷能利用工艺分析评价方法和国内外研究进展进行介绍,指出目前主要的几种方法如能量衡算法、(?)分析法、窄点分析法和技术经济分析法等。针对我国目前LNG冷能利用现状,在进行实际评价时应注意针对不同利用方案的特点,将多种评价方法相结合,建立系统的评价体系来评价即将建设的LNG冷能利用项目方案。在此基础上,利用技术经济法建立LNG冷能综合利用规划方案评价模型,根据各利用方式的已知数据,在LNG冷量、工程用地、生产原料供应量等条件的约束下,综合考虑经济、技术和政策方面的影响,对模型进行求解,得到各方案的静态回收期、内部收益率等评价数据,以便进行方案的优选。在已建立的LNG冷能综合利用规划方案评价模型的基础上,利用C#程序设计语言对LNG冷能综合利用规划方案评价模型编制计算软件,使其能在主流Windows系统下单机运行,进行相应的界面设计。该软件可实现对不同的LNG冷能利用方案进行评价,给出每个方案的最终评分和综合评价报告。
[Abstract]:With the global energy shortage, environmental problems and the rapid growth of LNG trade volume, the prospects for the utilization of LNG cold energy are very broad. When planning the LNG cold energy utilization project, It is necessary to give a comprehensive evaluation of the cold energy utilization scheme in the stage of feasibility study. This paper studies the evaluation methods of the current LNG cold energy utilization technology in China. The main contents are as follows: first, This paper introduces the principle and mode of LNG cold energy utilization technology, puts forward the main contents and objectives of this paper, and introduces the evaluation method of LNG cold energy utilization technology and the research progress at home and abroad. This paper points out several main methods such as energy balance algorithm. In view of the present situation of cold energy utilization of LNG in China, we should pay attention to the characteristics of different utilization schemes and combine various evaluation methods in view of the current situation of cold energy utilization of LNG in China. A systematic evaluation system is established to evaluate the project scheme of cold energy utilization of LNG to be built. On this basis, a comprehensive plan evaluation model of cold energy utilization for LNG is established by using the method of technology and economy. According to the known data of each utilization mode, the cold capacity of LNG is calculated. Under the constraints of engineering land, supply of raw materials and so on, considering the influence of economy, technology and policy, the model is solved, and the static recovery period, internal rate of return and other evaluation data of each scheme are obtained. On the basis of the established evaluation model of LNG cold energy comprehensive utilization plan, the evaluation model of LNG cold energy comprehensive utilization plan is compiled by using C # programming language. The software can realize the evaluation of different LNG cold energy utilization schemes, and give the final score and comprehensive evaluation report of each scheme.
【学位授予单位】：大连理工大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：TE64

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