Detailed understanding of turbulent combustion in liquid rocket engines (LRE) requires an ability to predict the coupling between the transient features, acoustics, vortex/shear layer dynamics and the unsteady combustion heat release. Conventional and ad hoc models that mimic or match one set of conditions but fail in another test case cannot be used for reliable predictions. This paper presents a simulation strategy based on Large-Eddy Simulation (LES) that uses a finite-volume scheme on multi-block, structured grids and solves the full multi-species, compressible LES equations using a hybrid central-upwind scheme to capture both turbulence shear flow and large density gradients. The sensitivity of predictions to the real gas equation of state such as the Peng-Robinson one is addressed in this study. The main modeling challenges concern the simultaneous capture of the flame structure, the flame-turbulence interactions and the regions of compressibility. The current work focuses on turbulent combustion in three single injector configurations for these objectives: (a) trans-critical liquid oxygen (LOX) / gaseous hydrogen (GH2) combustion, (b) trans-critical LOX/methane combustion and (c) high-pressure GOX/methane combustion with thermo-acoustic instabilities. Results will be reported on the flame structure, liquid core length and spreading rate, and comparison with data where appropriate. Finally, for LES of such problems, a more fundamental challenge is to determine the implication of the LES subgrid closures for real gas flame dynamics. As a preliminary effort, the Linear-Eddy sub-grid model (LEM) is being applied to some of these cases.

关键词：新能源与高效节能；储能技术；混合动力系统；热推进系统

查看摘要 索取原文[9页]

Electrolytes, nano-structuring and graphene nanoplatelets for electrodes, and current collectors in batteries and supercapacitors were investigated. The following results were obtained: i) Nano-structuring of graphene nanoplatelets with and without conductive polymers produced supercapacitors with very high specific capacitance (>165 F/gm) and high frequency (>150 Hz) response with low losses; ii) graphene nanoplatelet thin films can replace copper current collectors in energy storage devices and save weight ~80% and reduced cost.

关键词：新能源与高效节能；储能技术；陶瓷电解质膜；导电聚合物

查看摘要 索取原文[82页]

Cell imbalance is one of the key factors that limit the capacity and power of battery energy storage systems (BESS),especially the large lithium-ion battery packs.To deal with the unbalancing problem,an effective balancing circuit is required,so is an optimal balancing strategy.In this paper,an optimal strategy for cells balancing has been presented.Contrary to the conventional balancing algorithms which base on instantaneous voltage or state-of-charge (SOC) no matter what the cause of imbalance is,the proposed strategy is targeted to different imbalance situations.Four cases of cell imbalance have been analyzed and the balancing effects of different algorithms are discussed.The simulation results show that the proposed strategy improves the performances of battery packs,including the usable capacity and maximum power.

关键词：新能源与高效节能；储能技术；均衡策略；不平衡分析

查看摘要 索取原文[8页]

In the effort to meet climate change targets the share of renewable energy in electricity market has to be increased. The augmented penetration of renewable sources in the electricity grids could be destabilizing and may create barriers to their future expansion. Energy storage technologies are being regarded as a potential solution to deal with the intermittent nature of renewable energy sources. Introduction of energy storage systems in a future Smart Grid is definitely a complex problem and requires the technological analysis of the energy system itself. The purpose of this paper is to present an up-to-date critical examination of the state of the art of different computer tools that can be used to analyse the integration of energy storage systems utilized in conjunction with distributed generation. Particular emphasis is given to the case of isolated Greek islands.

关键词：新能源与高效节能；储能技术；能源工具；能源系统建模

查看摘要 索取原文[18页]

关键词：天然气；热值计价；试点

查看摘要 索取原文[1页]

- TARDEC Energy Storage Team Goals, Mission, & Role - Army Applications & Challenges - Ragone Plot
- Commercial vs Military - Dual Use 6T Program

关键词：新能源与高效节能；储能技术；能源存储和地面车辆；生命周期管理

查看摘要 索取原文[24页]

This project has been extremely successful and good progress has been made towards all of the originally stated goals. Briefly, (i) a variety of new, extremely bulky monodentate amide ligands have been developed; (ii) these have been utilized to prepare a series of monomeric, low coordinate p-block metal halide precursor complexes; (iii) the precursors have been reduced by magnesium(I) complexes to very low oxidation state/low coordination number p- block complexes, which are of considerable fundamental interest; (iv) the 'transition metal-like' reactivity of the low oxidation state complexes has been demonstrated by their use in facile activation of small molecules such as H2, CO2, N2O etc.; (v) group 14 hydride complexes resulting from H2 activations have been utilized for the first sub-room temperature hydrometallations of unactivated alkene substrates, and as the first main group compounds that act as catalysts for the hydroboration of ketones; (vi) a variety of related results, including the preparation of an iron(I) dimer with the shortest Fe-Fe multiple bond, have been achieved. The results of this study are at the very cutting edge of main group chemistry, and represent significant advances to the field. The study as a whole has generated nine papers in the period, with at least another four to be published in the next 12 months. PI Jones has delivered 10 invited or plenary lectures on project results at conferences and institutions in five countries in the period.

关键词：新能源与高效节能；储能技术；镁化合物；无机化学

查看摘要 索取原文[11页]

This presentation provides an overview of two NREL energy storage studies: Wind Hydrogen in California: Case Study and Blending Hydrogen Into Natural Gas Pipeline Networks: A Review of Key Issues. 

关键词：新能源与高效节能；储能技术；混合；国家可再生能源实验室（NREL）

查看摘要 索取原文[21页]

关键词：再生水；利用率；污水；处理量

查看摘要 索取原文[1页]

报告从新能源相关定义、产业热点、产业研究、新能源相关数据等几个方面进行了分析评论。

关键词：新能源；产业热点；产业研究；新能源数据

查看摘要 索取原文[61页]