聚氯乙烯生产全过程能耗的估算及分析

文章运用生命周期的评价方法对聚氯乙烯产品生产全过程的能耗进行了估算,并对估算结果进行了对比分析。找出了影响聚氯乙烯生产全过程能耗的主要因素,指出了聚氯乙烯生产今后的节能方向。

聚乙烯生产全过程能耗的估算及分析

本文运用生命周期的评价方法对聚乙烯产品生产全过程的能耗进行了估算,并对估算结果进行了对比分析。找出了影响聚乙烯生产全过程能耗的主要因素,指出了聚乙烯生产今后的节能方向。

天然气净化厂生产过程能耗控制研究与实践

针对天然气净化生产过程的主要能耗,对天然气净化厂在能耗控制方面采取的技术及措施进行了系统总结,对目前天然气净化厂生产装置能耗控制潜力进行了分析,提出了相应的技术措施。

考虑生产过程能耗的多目标绿色作业车间调度问题研究

针对制造车间生产过程中机器不同运行状态下的能耗协同优化问题,构建了考虑生产过程能耗的多目标绿色作业车间调度问题模型。该调度模型考虑到机器启/停能耗、机器预加热能耗、加工能耗、空载能耗、工件运输能耗、低压低频待机能耗以及生产辅助能耗对总能耗的影响,根据该模型特点设计了基于邻域排挤机制、改进拥挤距离计算方式和邻域搜索策略的改进NSGA-Ⅱ算法进行求解。最后,通过基准算例和实际工程案例进行测试,结果表明所构建的模型和改进NSGA-Ⅱ算法求解考虑生产过程能耗的多目标绿色作业车间调度问题是切实可行的,能够更加有效地指导实际车间生产。

DPN架构的连续型企业生产与能耗耦合动态调度系统研究

摘要针对企业的生产和能源调度需求，采用模块化方法建立并研究了连续型企业生产一能耗耦合式动态调度系统的微分Petri网（DPN）模型，以解决当前能源调度与生产调度脱节的问题。该模型由总体架构模型、带遥调或遥信阀门的系统传输管网模型、检测预警模型、带协同约束弧的调度预警器模型和备用设备模型组成。采用DPN仿真算法，通过调整遥调、遥控和遥信阀门实现了系统DPN模型的动态调度仿真。该生产与能耗耦合的动态调度系统的软件已实现了从工艺界面到调度界面的转化。该系统对企业生产和能源管理具有重要的辅助作用。

Embodied coefficient of energy carriers and its calculation method

To quantify the energy consumption in the process of production, transportation and processing of energy carriers, the life cycle of building energy used can be divided into two phases： on-site phase and embodied phase. As for the embodied phase, with the data in existing statistic yearbook, the consumption items of energy production and transportation were investigated. And based on the life cycle theory, an embodied coefficient of energy carriers was proposed to quantify the embodied energy consumption. Moreover, a calculation method for the embodied coefficient of energy carriers was deduced using Leontief inverse matrix based on the existing data sources. With relevant data of 2005-2007 in China, the embodied coefficients in 2005-2007 were obtained, in which the values for natural gas and thermal power are around 1.3 and 3. l, respectively; while they are 1.03-1.08 for other selected energy carriers. In addition, it is also found that the consumption in the production and processing accounts for more than 75%.