Results 91 to 100 of about 4,736 (178)
Multi-Dimensional Business Operation Models and Development Strategies for Electric-Hydrogen Complementary and Collaborative System [PDF]
[Objective] The coordinated development of electricity and hydrogen is a key pathway to achieving dual carbon goals and serves as a crucial support for building a new power system.
Changjun XIE +6 more
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Zhejiang Daxue xuebao. Lixue ban, 2015 基于实验得到的单晶结构建立了理论计算的结构模型，旨在用计算结果揭示实验所获得结构的微观驱动力，即弱相互作用的重要模式.通过对实验结构的异构化处理，建立异构体模型并进行比对，可以给出实验结构在能量上的优势.采用密度泛函方法对BIPy的2种同晶异形体Ⅰ（实验获得的单晶结构）和Ⅱ（根据Ⅰ的结构设计的异构体）与水分子之间的氢键相互作用进行了计算.结果表明，BIPy-Ⅰ在能量上具有明显优势，进一步证明了水分子在水分子夹中更适合作为氢键的受体.虽然BIPy-Ⅱ构型也处于势能面上的稳定点，但是实验无法得到其单晶结构 ...
WANGXiaojing(王肖璟) +3 more
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Two-Stage Robust Optimization Scheduling of Park-Level Hydrogen-Electric Coupling Systems With Demand Response and Carbon Trading [PDF]
ObjectivesHydrogen energy, as a clean energy source with high energy density and zero carbon emissions, is an important component of future energy systems.
PENG Yonggang, SUN Jing, ZHANG Jiaxin
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Supercritical cracking and ignition performance of C10 hydrocarbon fuels(碳十烃类燃料的超临界裂解与点火性能)
Zhejiang Daxue xuebao. Lixue banUsing endothermic hydrocarbon fuels as a novel approach to address thermal management issues in aircraft is well recognized, with their cooling and propulsion performance being contingent upon the composition of the fuel.
YE Yuying(叶虞滢) +4 more
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Low-Carbon Economic Scheduling of Integrated Energy System Considering Diversified Utilization of Hydrogen Energy [PDF]
ObjectivesIn the context of “dual-carbon” goals, achieving low-carbon economic operation of integrated energy system (IES) is of paramount importance. However, existing IES models incorporating power-to-gas (P2G) technology often overlook energy losses ...
LI Ji, MA Kai, YUAN Zhi
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He jishu氢化物是锆合金包壳管在核电厂正常运行过程中与一回路冷却剂发生锆水反应而产生的常见缺陷。本文利用分子动力学方法，采用第三代电荷优化多体（Third-generation Charge-Optimized Many-Body，COMB3）势函数，构建含氢化物的锆基模型进行单轴拉伸模拟，探究了氢化物密度对锆力学性能的影响。研究结果表明：当氢化物密度在0~1 078 µg·g-1时，随着氢化物密度的增加，屈服强度、应变和杨氏模量降低。在弹性阶段，氢化物密度的增加使应力集中区域增大，有利于位错形核；在塑性变形阶段，
刘 潇雅, 马 雁, 张 智鑫
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Gaoya dianqi“双碳”目标背景下，建设以电—氢—热多能流耦合的综合能源系统不仅可以解决新能源并网难的问题，也可以促进能源领域降碳减排。对于电—氢—热综合能源系统，以燃料电池与电解池为能源枢纽，实现电—氢—热的相互转换，进一步提高能源的梯级利用效率，增强电网调度灵活性。文中首先建立了一个基于不确定性分析与电价波动的电—氢—热综合能源系统，分析了不同能量消耗方式和电价波动对综合能源系统投资成本的影响；其次，研究了可再生能源的不确定性对系统“弃风、弃光”决策的影响机制。结果表明：综合能源系统可通过电—氢 ...
闫振靖 +6 more
doaj
Zhejiang Daxue xuebao. Lixue ban, 2019 以SiO2、Al2O3和HZSM-5、Re-HY 分子筛为载体，以Zn 为主要活性成分，研究了不同类型载体以及不同Si/Al 比的HZSM-5 分子筛负载Zn 催化剂的愈创木酚加氢脱氧（HDO）反应性能。结果表明，催化剂的酸性是影响其加氢脱氧活性和产物选择性的主要因素，并且愈创木酚加氢脱氧转化为环己烷、BTX （苯、甲苯、二甲苯） 等完全脱氧产物的活性，与催化剂的总酸量、酸中心强度具有一定的相关性。
CHENChen(陈辰), FEIJinhua(费金华)
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Gaoya dianqi针对可再生能源大规模并网带来的能源消纳需求，电制氢技术因其可将电能清洁高效地转换为氢能储存的特性，提供了一种有效的能源消纳方案。文中旨在研究考虑氢储能的多目标综合能源优化配置方案，首先提出包含可再生能源发电、电制氢、储能等环节的能源框架，进一步构建以投资成本低、可再生能源机组的弃风弃光量小和碳排放量低为目标的多目标调度模型，最后通过小生境粒子群算法在多个目标之间寻找最优解集。仿真结果表明，本方法可以得到系统投资成本低、可再生能源利用率高和碳排放量低的配置方案，以推动能源结构绿色转型。
孙靓雨, 林泽源, 李伟
doaj
Optimization and Scheduling of Integrated Energy Systems With Carbon Capture and Storage-Power to Gas Based on Information Gap Decision Theory [PDF]
ObjectivesThe main issue in the current rational optimization of integrated energy systems is to adopt technological means to improve energy conversion efficiency, reduce system energy waste and regional environmental pollution, in order to ...
BAO Geriletu, LI Xinxin, ZHAO Zhenyu
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